HP


Line plots across dimensions of each concept
Line plots across concepts
Tables

Table of contents



us-gaap:CommonStockValue
us-gaap:StatementEquityComponents
us-gaap:SharesIssued
us-gaap:StatementEquityComponents
us-gaap:CommonStockSharesIssued

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:IncomeLossFromContinuingOperationsPerBasicShare

us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare

us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:AwardType
us-gaap:IncomeStatementLocation

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization

us-gaap:CostsAndExpenses

us-gaap:GainLossOnInvestments

us-gaap:IncomeLossFromContinuingOperations

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxesPaidNet

us-gaap:InterestExpense

us-gaap:InterestPaidNet

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted

us-gaap:NonoperatingIncomeExpense

us-gaap:OperatingIncomeLoss
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OtherNonoperatingIncomeExpense
us-gaap:ConsolidationItems
us-gaap:PremiumsEarnedNet

us-gaap:ResearchAndDevelopmentExpenseExcludingAcquiredInProcessCost

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ProductOrService

us-gaap:Revenues
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments
us-gaap:StatementGeographical

us-gaap:SellingGeneralAndAdministrativeExpense
us-gaap:ConsolidationItems

us-gaap:Assets
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:StatementOperatingActivitiesSegment

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:AssetsCurrent
us-gaap:StatementGeographical
us-gaap:Cash

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:ShortTermInvestments

us-gaap:AccountsReceivableNetCurrent

us-gaap:ReceivablesNetCurrent

us-gaap:InventoryNet

us-gaap:OtherAssetsCurrent

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AmortizationOfIntangibleAssets

us-gaap:PropertyPlantAndEquipmentNet
us-gaap:StatementBusinessSegments
us-gaap:StatementGeographical

us-gaap:LongTermInvestments

us-gaap:Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:FiniteLivedIntangibleAssetsNet
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:OperatingLeaseRightOfUseAsset
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:OtherAssetsNoncurrent
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:EquitySecuritiesFvNi
us-gaap:FairValueByMeasurementFrequency

us-gaap:AccountsPayableCurrent

us-gaap:AccruedLiabilitiesCurrent

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:DividendsPayableCurrent

us-gaap:LiabilitiesCurrent

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OtherAccruedLiabilitiesCurrent

us-gaap:LiabilitiesNoncurrent

us-gaap:LongTermDebt
us-gaap:DebtInstrument

us-gaap:LongTermDebtNoncurrent
us-gaap:FairValueByMeasurementBasis

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:OperatingLeaseLiability

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:RetainedEarningsAccumulatedDeficit
us-gaap:CumulativeEffectPeriodOfAdoption

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:DepreciationDepletionAndAmortization

us-gaap:IncreaseDecreaseInAccountsPayable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInInventories

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:ShareBasedCompensation

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
us-gaap:AwardType
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxAssetsNet

us-gaap:UnrecognizedTaxBenefits

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:LitigationReserveCurrent

us-gaap:ProceedsFromSaleOfShortTermInvestments

hp:ContractWithCustomerLiabilityIncreaseDecrease

hp:CumulativeEffectAdjustmentForAccountingStandardsUpdate

hp:CumulativeInflationRateBeforeConsideredHighlyInflationary

hp:EarlyTerminationRevenue

hp:GainFromSaleOfAssetsNetOfTax

hp:GainLossRelatedToSaleOfAssetsPerDilutedShare

hp:IncomeLossFromContinuingOperationsBasic

hp:IncomeLossFromContinuingOperationsDiluted

hp:IncreaseDecreaseInAccountsPayableAndAccruedLiabilitiesRelatedToPurchasesOfPropertyPlantAndEquipment

hp:IncreaseDecreaseInAccountsReceivablePropertyPlantAndEquipmentAndOtherLongTermAssetsRelatedToTheSaleOfEquipment

hp:RestructuringCostsNetOftax
us-gaap:Range
hp:SelfInsuranceCoverageDeductiblesRangeForClaimsIncurred

hp:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsReinvestedDividendsInPeriod

hp:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsReinvestedDividendsWeightedAverageGrantDateFairValue

hp:ShareBasedCompensationArrangementByShareBasedPaymentAwardPerShareWeightedAveragePrice

us-gaap:AdjustmentsToAdditionalPaidInCapitalOther
us-gaap:StatementEquityComponents

us-gaap:AmortizationOfFinancingCostsAndDiscounts

us-gaap:AssetImpairmentCharges

us-gaap:CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations

us-gaap:CommonStockDividendsPerShareDeclared
us-gaap:ConcentrationRiskByBenchmark, us-gaap:ConcentrationRiskByType, us-gaap:GeographicDistribution
us-gaap:ConcentrationRiskPercentage1
us-gaap:StatementGeographical, us-gaap:ConcentrationRiskByBenchmark, us-gaap:ConcentrationRiskByType, us-gaap:GeographicDistribution, us-gaap:StatementBusinessSegments

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets

us-gaap:DefinedBenefitPlanInterestCost

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost

us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1

us-gaap:Depreciation

us-gaap:DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax

us-gaap:DiscontinuedOperationTaxEffectOfDiscontinuedOperation

us-gaap:DividendsCommonStockCash
us-gaap:StatementEquityComponents

us-gaap:EquitySecuritiesFvNiGainLoss
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements

us-gaap:ForeignCurrencyTransactionGainLossBeforeTax

us-gaap:GainLossOnDispositionOfAssets1
us-gaap:ConsolidationItems
us-gaap:StatementBusinessSegments

us-gaap:GainLossOnSaleOfOtherAssets

us-gaap:GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee

us-gaap:GainOrLossOnSaleOfStockInSubsidiary

us-gaap:GeneralInsuranceExpense

us-gaap:GoodwillImpairmentLoss

us-gaap:ImpairedAssetsToBeDisposedOfByMethodOtherThanSaleAmountOfImpairmentLoss

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare

us-gaap:IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost

us-gaap:IncreaseDecreaseInAccruedLiabilities

us-gaap:IncreaseDecreaseInDeferredIncomeTaxes

us-gaap:IncreaseDecreaseInOtherNoncurrentAssets

us-gaap:IncreaseDecreaseInOtherNoncurrentLiabilities

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:InventoryWriteDown

us-gaap:InvestmentIncomeInterestAndDividend

us-gaap:LeaseCost

us-gaap:NetCashProvidedByUsedInOperatingActivitiesContinuingOperations

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeaseExpense

us-gaap:OperatingLeasePayments

us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
us-gaap:StatementEquityComponents

us-gaap:OtherCostOfOperatingRevenue

us-gaap:OtherNoncashIncomeExpense

us-gaap:OtherOperatingIncome

us-gaap:PaymentForContingentConsiderationLiabilityFinancingActivities

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsToAcquireShortTermInvestments

us-gaap:ProceedsFromDivestitureOfInterestInConsolidatedSubsidiaries

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProceedsFromSaleOfProductiveAssets
us-gaap:StatementBusinessSegments
us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment

us-gaap:ProceedsFromStockOptionsExercised

us-gaap:ProvisionForDoubtfulAccounts
us-gaap:StatementEquityComponents
us-gaap:ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent
us-gaap:StatementEquityComponents
us-gaap:RestrictedStockSharesIssuedNetOfSharesForTaxWithholdings

us-gaap:RestrictedStockValueSharesIssuedNetOfTaxWithholdings
us-gaap:StatementEquityComponents

us-gaap:RestructuringCharges
us-gaap:RestructuringCostAndReserve

us-gaap:RestructuringCosts
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod
us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice
us-gaap:AwardType
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice

us-gaap:ShortTermLeaseCost
us-gaap:AwardType
us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised

us-gaap:TangibleAssetImpairmentCharges
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic

hp:AccruedDeferredMobilizationCurrent

hp:AccruedDeferredMobilizationLiabilityCurrent

hp:AccruedDeferredMobilizationNoncurrent

hp:AccruedDemobilizationExpensesCurrent

hp:AccruedOperatingCostCurrent

hp:AccruedPayrollTaxesNoncurrent
us-gaap:Range, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:MeasurementInputType, us-gaap:ValuationTechnique
hp:BusinessCombinationContingentConsiderationLiabilityMeasurementInputPaymentAmount

hp:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNetNoncurrent
us-gaap:DebtInstrument

hp:DeferredTaxAssetsOperatingLossAndTaxCreditCarryforwards
us-gaap:IncomeTaxAuthority
hp:DeferredTaxAssetsTaxCreditCarryforwardsForeignMinimumTax

hp:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsFinancialAccruals

hp:DeferredTaxLiabilitiesUnrealizedGainsOnAvailableForSaleSecurities

hp:DefinedBenefitPlanExpectedFutureBenefitPaymentsTotal

hp:DicomFloatingRate

hp:LesseeOperatingLeaseLiabilitytobePaidIncludingProbableLeaseExtensionOptions
us-gaap:DebtInstrument, us-gaap:SubsequentEventType
hp:LineOfCreditFacilityBorrowingCapacityExpired

hp:OperatingLeaseLiabilityIncludingShortTermCommitment
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
hp:OtherAssetsNoncurrentFairValueDisclosure
us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
hp:OtherCurrentAssetsFairValueDisclosure
us-gaap:FairValueByMeasurementFrequency

hp:PrepaidMaintenanceAndRent

hp:PrepaidValueAddedTax

hp:RestrictedCashAndCashEquivalentsAtElectionOfManagementForPotentialInsuranceClaims
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
hp:ShortTermInvestmentsFairValueDisclosure
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument

hp:TemporaryReductionInOilProductionNumberOfBarrels

hp:UnrecognizedTaxBenefitFromDiscontinuedOperationsThatWouldNotImpactEffectiveTaxRate

us-gaap:AccrualForTaxesOtherThanIncomeTaxesCurrent
us-gaap:CumulativeEffectPeriodOfAdoption
us-gaap:AllowanceForDoubtfulAccountsReceivable

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent
us-gaap:StatementEquityComponents
us-gaap:AociBeforeTaxAttributableToParent
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:AssetsFairValueDisclosure
us-gaap:FairValueByMeasurementFrequency

us-gaap:AssetsNoncurrentOtherThanNoncurrentInvestmentsAndPropertyPlantAndEquipment
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:ValuationTechnique
us-gaap:BusinessCombinationContingentConsiderationLiability

us-gaap:BusinessCombinationContingentConsiderationLiabilityCurrent
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:MeasurementInputType, us-gaap:ValuationTechnique
us-gaap:BusinessCombinationContingentConsiderationLiabilityMeasurementInput
us-gaap:Range, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:MeasurementInputType, us-gaap:ValuationTechnique

us-gaap:BusinessCombinationContingentConsiderationLiabilityNoncurrent
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency

us-gaap:CapitalizedContractCostNet
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:CashAndCashEquivalentsFairValueDisclosure
us-gaap:FairValueByMeasurementFrequency

us-gaap:CashCashEquivalentsAndShortTermInvestments

us-gaap:ContractWithCustomerAssetNet

us-gaap:ContractWithCustomerLiability

us-gaap:DebtInstrumentCarryingAmount
us-gaap:DebtInstrument

us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:DeferredCompensationPlanAssets

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsForeign

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsTaxCreditCarryforwardsForeign

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsSelfInsurance

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DefinedBenefitPensionPlanLiabilitiesNoncurrent

us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax

us-gaap:DefinedBenefitPlanAmountsRecognizedInBalanceSheet

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate

us-gaap:DefinedBenefitPlanBenefitObligation

us-gaap:DefinedBenefitPlanExpectedAmortizationOfGainLossNextFiscalYear

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets
us-gaap:DefinedBenefitPlanByPlanAssetCategories, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:DefinedBenefitPlanByPlanAssetCategories, us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementBasis

us-gaap:DefinedBenefitPlanFundedStatusOfPlan

us-gaap:DefinedBenefitPlanWeightedAverageAssetAllocations
us-gaap:DefinedBenefitPlanByPlanAssetCategories

us-gaap:DepositLiabilityCurrent

us-gaap:EmployeeRelatedLiabilitiesCurrent
us-gaap:AwardType
us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions
us-gaap:AwardType
us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsGross
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:IncomeTaxReceivable

us-gaap:InventoryValuationReserves

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LessorOperatingLeasePaymentsToBeReceived

us-gaap:LessorOperatingLeasePaymentsToBeReceivedFiveYears

us-gaap:LessorOperatingLeasePaymentsToBeReceivedFourYears

us-gaap:LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths

us-gaap:LessorOperatingLeasePaymentsToBeReceivedThereafter

us-gaap:LessorOperatingLeasePaymentsToBeReceivedThreeYears

us-gaap:LessorOperatingLeasePaymentsToBeReceivedTwoYears
us-gaap:CreditFacility, us-gaap:DebtInstrument
us-gaap:LettersOfCreditOutstandingAmount

us-gaap:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent

us-gaap:LiabilityForUncertainTaxPositionsNoncurrent
us-gaap:DebtInstrument
us-gaap:LineOfCredit
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:LongTermDebtFairValue
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent
us-gaap:IncomeTaxAuthority
us-gaap:OperatingLossCarryforwards

us-gaap:OtherSundryLiabilitiesNoncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities

us-gaap:PrepaidInsurance

us-gaap:PurchaseObligation

us-gaap:RealEstateHeldforsale

us-gaap:RealEstateInvestmentPropertyAccumulatedDepreciation

us-gaap:RealEstateInvestmentPropertyAtCost

us-gaap:RealEstateInvestmentPropertyNet

us-gaap:RestrictedCashAndCashEquivalents
us-gaap:BalanceSheetLocation
us-gaap:BusinessAcquisition

us-gaap:RestrictedCashAndCashEquivalentsAtCarryingValue
us-gaap:RestructuringCostAndReserve
us-gaap:RestructuringReserve

us-gaap:RevenueRemainingPerformanceObligation

us-gaap:SelfInsuranceReserveCurrent

us-gaap:SelfInsuranceReserveNoncurrent
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice
us-gaap:AwardType

us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions
us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRange

us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions
us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRange
us-gaap:AwardType
us-gaap:SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1
us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRange
us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRange
us-gaap:SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1

us-gaap:ShortTermLeaseCommitmentAmount
us-gaap:IncomeTaxAuthority
us-gaap:TaxCreditCarryforwardAmount

us-gaap:TreasuryStockCommonValue

us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued

Plots across concepts


IncomeStatement
Income Loss From Continuing Operations 
Before Income Taxes Extraordinary Items Noncontrolling Interest
Expenses
Income Tax Expense Benefit
Balance Sheet
Operating Lease Right Of Use Asset
Assets
Operating Lease Right Of Use Asset
Current Assets
Other Assets Current
NonCurrent Assets
Other Assets Noncurrent
PropertyPlantAndEquipmentNet
Property Plant And Equipment Net
Liabilities
Operating Lease Liability
Current Liabilities
Contract With Customer Liability Current
Noncurrent Liabilities
Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
Stockholders Equity
Accumulated Other Comprehensive Income Loss Net Of Tax
CashFlow
Net Income Loss
NetCashProvidedByUsedInOperatingActivities
Net Income Loss
NetCashProvidedByUsedInInvestingActivities
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInFinancingActivities
Net Cash Provided By Used In Financing Activities
Shares
Weighted Average Number Of Diluted Shares Outstanding
OperatingLeaseLiability
Operating Lease Liability Current
NonoperatingIncomeExpense
Nonoperating Income Expense
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Due Year Four
FiniteLivedIntangibleAssets
Finite Lived Intangible Assets Accumulated Amortization
AccountsReceivable
Allowance For Doubtful Accounts Receivable Current

Tables

  2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
us-gaap:CommonStockValue █████████████████▇▇▇▇▆▆▆▆▆▆▅▄▃▃▃▃▂▂▂▂▁▁▁▁▁11.22211.21511.21511.21511.21511.20811.20811.20811.20811.20111.20111.20111.20111.19611.1911.18811.18811.1411.13811.13611.1311.09911.08611.08511.08311.05111.04811.03210.96210.87410.84810.84310.82610.7610.75910.75610.74910.72410.71410.70610.70610.706NANANA
 us-gaap:SharesIssued us-gaap:StatementEquityComponents us-gaap:CommonStock█▁112.223112.151NANA112.151112.08NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA107.490.107243107.144107.058107.058107.058NANANA
 us-gaap:SharesIssued us-gaap:StatementEquityComponents us-gaap:TreasuryStockCommon▁█4.3684.663NANA3.2743.642NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CommonStockSharesIssued us-gaap:StatementEquityComponents us-gaap:CommonStockNA112.151112.151112.151112.151112.08112.08112.08112.08112.009112.009112.009112.009111.957111.897111.882111.876111.4111.384111.356111.296110.987110.858110.846110.827110.509110.475110.324109.623108.739108.477108.426108.263107.599107.587107.565NA107.243NANANA107.058NANANA
 us-gaap:CommonStockSharesIssued us-gaap:StatementEquityComponents us-gaap:TreasuryStockCommonNA4.663NANANA3.642NANANA3.015NANANA3.353NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding 107.617NA107.439108.557108.724NA109.425109.503109.425NA108.905108.868109.095NA108.572108.565108.276NA108.047108.466108.409NA108.469108.37108.843NA109.285109.081108.577NA107.826107.786107.412NA108.425109.042108.788NA108.784108.595107.852NA107.444107.484107.238
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic 107.617NA107.439108.557108.555NA109.425109.406109.142NA108.905108.868108.683NA108.572108.565108.276NA108.047108.014107.852NA107.652107.646107.973NA108.137107.692107.149NA106.43106.326105.867NA107.016107.385107.186NA106.962106.515106.031NA105.743105.711105.575
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount 4.494NA4.7084.5793.413NA2.7532.9212.089NA0.9291.6133.377NA1.3320.5660.555NA3.4092.2111.899NA0.5920.6670.669NANA0.2150.261NA0.750.7520.806NA0.7550.4350.761NANA0.3130.324NA0.554NANA
us-gaap:EarningsPerShareBasic ▄▄▄▁▄▅▃▅▄▄▄▄█▄▄▄▄▄▄▄▄▄▅▅▆▅▆▆▆▅▆▅▅▅▅▅▅▅▅▅▅▅▄▅▅-0.66-0.55-0.43-3.880.270.37-1.420.550.170.02-0.08-0.124.57-0.21-0.21-0.45-0.33-0.68-0.20.190.15-0.20.841.381.871.551.771.611.611.492.491.411.51.481.41.21.341.131.020.920.980.78-0.350.440.6
us-gaap:EarningsPerShareDiluted ▄▄▄▁▄▅▃▅▄▄▄▄█▄▄▄▄▄▄▄▄▄▅▅▆▅▆▆▆▅▆▅▅▅▅▅▅▅▅▅▅▅▄▅▅-0.66-0.55-0.43-3.880.270.37-1.420.550.170.02-0.08-0.124.55-0.21-0.21-0.45-0.33-0.68-0.20.190.15-0.20.831.371.851.531.751.591.591.472.461.391.481.461.381.181.321.111.010.910.960.77-0.340.430.59
us-gaap:IncomeLossFromContinuingOperationsPerBasicShare ▄▄▄▁▄▅▃▅▄▄▄▄█▄▄▄▄▄▄▄▄▄▅▅▆▅▆▆▆▅▆▅▅▅▅▅▅▅▅▅▅▅▅▅▅-7.3e-07-5.699999999999999e-07-4.3e-07-3.88e-062.7e-073.8e-07-1.42e-066.5e-077e-082e-08-8e-08-3e-084.57e-06-2.0000000000000002e-07-2.2e-07-4.5000000000000003e-07-3.3e-07-6.800000000000001e-07-2.0000000000000002e-072.3000000000000002e-071.5e-07-2.0000000000000002e-078.4e-071.38e-061.87e-061.55e-061.77e-061.61e-061.61e-061.49e-062.35e-061.4099999999999998e-061.5e-061.4099999999999998e-061.4e-061.2e-061.34e-061.13e-061.02e-069.200000000000001e-079.8e-077.8e-076.1e-077e-076.1e-07
us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare ▄▄▄▁▄▅▃▅▄▄▄▄█▄▄▄▄▄▄▄▄▄▅▅▆▅▆▆▆▅▆▅▅▅▅▅▅▅▅▅▅▅▅▅▅-7.3e-07-5.699999999999999e-07-4.3e-07-3.88e-062.7e-073.8e-07-1.42e-066.5e-077e-082e-08-8e-08-3e-084.55e-06-2.0000000000000002e-07-2.2e-07-4.5000000000000003e-07-3.3e-07-6.800000000000001e-07-2.0000000000000002e-072.3000000000000002e-071.5e-07-2.0000000000000002e-078.3e-071.37e-061.85e-061.53e-061.75e-061.59e-061.59e-061.47e-062.32e-061.3899999999999998e-061.48e-061.3899999999999998e-061.38e-061.18e-061.32e-061.1100000000000002e-061.01e-069.100000000000001e-079.6e-077.7e-076.1e-076.800000000000001e-076e-07
  2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
 Operating Margin us-gaap:ConsolidationItems us-gaap:OperatingSegments▂▁▂▇▆▇▇██246.377208.267317.364633.639614.657649.05687.974720.868740.598NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Operating Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,hp:OffshoreGulfofMexico32.273NA37.494NA40.255NA37.674NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Operating Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,us-gaap:AllOtherSegments▅▆██▆▁▁▁▁8.71810.6213.34313.99810.9993.2913.1863.2153.24NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
  2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
us-gaap:AllocatedShareBasedCompensationExpense ▅▅▅██▆▆▇▅▆▅▆▅▅▄▄▄▃▃▄▅▄▄▄▅▃▆▄▅▄▄▃▄▃▂▃▂▁▁▁▁▁▁7.4517.7537.62410.75110.2018.8258.8789.4317.1588.2157.9268.4597.0876.9366.7686.5785.9014.7225.6746.0667.9216.0756.0416.0976.9825.6148.2855.7947.015.85.7455.6986.0284.7784.5424.8363.9222.9872.972.9573.1872.9812.949NANA
us-gaap:ComprehensiveIncomeNetOfTax ▄▄▄▁▄▄▃▅▄▄▄▄█▄▄▄▄▄▄▄▄▄▅▅▅▅▆▅▅▆▅▆▅▆▅▅▆▅▅▅▅-69.974-58.069-45.078-420.02431.12128.627-154.45761.11519.18410.0616.155-19.139499.845-16.131-28.333-58.959-22.285-69.883-11.14220.0655.305-59.55387.75148.531160.994139.369191.299158.279170.368186.87166.562189.028159.902202.634112.409156.738177.16351.42494.647150.461152.455NANANANA
us-gaap:CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization ▂▁▂▆▆▇▇▇█198.689162.518205.198417.743389.206430.778443.114441.719487.593NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:CostsAndExpenses ▁▁▂█▃▄▆▄▄▄▄▃▃▃▃▃▂▂▂▂▂▃▃▄▅▅▄▄▄▄▄▄▄▃▃▃▃▃▂▂▂▂▂▁▁339.6283.697374.9481152.18583.289610.029855.848625.722686.309673.707642.655578.737560.567561.981526.592470.955417.754424.709379.742396.57449.177582.131526.914655.88724.766721.536680.175638.088625.121621.302600.237605.389604.025590.067587.13562.957502.049507.649469.677440.141423.916425.725371.91334.873290.858
us-gaap:GainLossOnInvestments █▇▇▅█▇▅█▁▇▇2.924-1.3952.267-12.4132.821-4.26-13.2715.878-42.8440.0010.0NANANANANANANANANANANANANANA0.023.88221.352NA0.0153.3693.2525.5NANANANA0.00.913NANANANANANA
us-gaap:IncomeLossFromContinuingOperations ▄▄▄▁▄▅▃▅▄▄▄▄█▄▄▄▄▄▄▄▄▄▅▅▆▅▆▆▆▅▆▅▅▅▅▅▅▅▅▅▅▅▅▅▅-77.924-60.646-46.007-420.46830.72941.89-154.62171.8578.3642.175-8.174-1.633500.642-21.711-23.125-48.473-34.554-72.869-21.19325.17415.898-21.20890.887149.536203.057168.705192.29174.589173.182159.797250.978151.067159.611149.606149.943129.763144.297121.514109.82898.961104.36583.29164.88374.10563.802
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest ▅▅▅▁▆▆▄▆▅▅▅▅▅▅▅▅▅▄▅▆▆▅▆▇█▇█-96.039-83.899-63.585-533.88144.86728.78-186.65296.9359.71619.0342.361-5.5550.001-27.909-33.603-70.244-52.842-126.286-18.35137.35234.618-21.358127.843231.345330.39262.864295.078NANANANANANANANANANANANANANANANANANA
us-gaap:IncomeTaxExpenseBenefit ▆▆▆▅▇▆▆▇▆▇▇▆▁▆▆▆▆▆▇▇▇▆▇▇████▇▇█▇▇▇▇▇▇▇▇▇▇▇▇▇▇-18.115-23.253-17.578-113.41314.138-13.11-32.03125.0781.35216.85910.535-3.922-500.641-6.198-10.478-21.771-18.288-53.4172.84212.17818.72-0.1536.95677.769128.894.159102.788100.83889.76385.65139.38781.08586.72288.73980.93975.15584.13866.63562.99560.37962.3947.28543.78523.87337.212
us-gaap:IncomeTaxesPaidNet ▅▅▅█▅▅▅▅▅▁▅▅▅-0.193.0710.1242.5750.9345.0052.0863.4175.71-43.0331.3550.6052.673NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:InterestExpense ▆▆▆▆▆█▆▆▅▇▆▆▆▃▆▆▅▆▇▆▅▆▆▃▁▁▂▂▂▂▃▂▂▂▃▃▃▄▄▆▅▅▄▄▅6.1396.1546.1256.0956.18.0436.2576.1674.726.4715.9936.0285.7732.2446.3646.0845.0556.2616.4075.7214.5245.7466.2582.4710.5610.31.4351.7251.1941.5442.0911.1861.3081.362.4112.4212.4614.173.2215.5134.4514.4653.9614.0384.694
us-gaap:InterestPaidNet ▁▇▁▇▁█▁▅▄▅▁▇▁0.07711.4170.07111.3940.04613.945-0.447.0946.148.6140.09211.7210.075NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLoss ▄▄▄▁▄▅▃▅▄▄▄▄█▄▄▄▄▄▄▄▄▄▅▅▆▅▆▆▆▅▆▅▅▅▅▅▅▅▅▅▅-70.431-58.963-45.599-420.5430.60541.177-154.68360.89118.9592.453-8.008-11.879500.106-22.532-21.799-48.818-35.063-72.835-21.221.20516.002-21.21490.86149.537203.042168.688192.279174.57173.182159.797266.159151.08159.603157.115149.925129.719144.286121.42109.82698.79104.15NANANANA
 us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings-70.431NA-45.599-420.5430.60541.177-154.68360.89118.9592.453-8.008-11.879500.106-22.532-21.799-48.818-35.063-72.835-21.221.20516.002-21.21490.86149.537203.042168.688192.279174.57173.182159.797266.159151.08159.603157.115149.925129.719144.286NANANANANANANANA
us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic ▄▄▄▁▄▅▃▅▄▄▄▄█▄▄▄▄▄▄▄▄▄▅▅▆▅▆▆▆▅▆▅▅▅▅▅▅▅▅▅▅▅▄▅▅-70.792-59.283-45.93-421.54329.61440.407-155.45560.10718.1822.348-8.725-12.596496.569-22.994-22.257-49.263-35.509-73.283-21.65120.72215.742-20.61590.302148.589201.787167.703191.145173.535172.19158.927264.718150.26158.873156.481149.319129.189143.812121.42109.49498.79104.1583.045-36.61646.74763.235
us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted ▄▄▄▁▄▅▃▅▄▄▄▄█▄▄▄▄▄▄▄▄▄▅▅▆▅▆▆▆▅▆▅▅▅▅▅▅▅▅▅▅▅▄-70.792-59.283-45.93-421.54329.61440.407-155.45560.10718.1812.345-8.725-12.596496.579-22.994-22.257-49.263-35.509-73.283-21.65120.72215.742-20.61990.303148.592201.793167.708191.152173.543172.197158.938264.733150.27158.882156.49149.326129.196143.819121.061109.49998.496103.84682.833-36.618NANA
us-gaap:NonoperatingIncomeExpense ▂▂▂▂▃▂▂▃▁▂▂▂▂▃▂▂▂▁▂▂▂▂▂▃▃▃▃▃▃▃█▃▃▃▃▃▃▂▃▂▂▃▂▂▂-2.816-8.469-6.001-15.3413.499-10.241-18.7781.789-44.573-4.084-3.856-4.302-3.5191.768-5.575-4.572-3.678-33.285-5.095-4.269-4.052-5.337-4.9370.1330.038-0.63823.16620.085-1.0862.213150.405-0.7685.786-1.035-1.773-2.107-2.104-4.953-1.595-4.925-3.971-2.656-2.806-3.728-4.37
us-gaap:OperatingIncomeLoss ▅▅▅▁▆▆▄▆▆▅▅▅▅▅▅▅▅▅▅▆▆▅▆▇█▇█▇▇▇▇▇▇▇▇▇▇▇▇▇▇▆▆▆▆-93.223-75.43-57.584-518.54131.36839.021-167.87495.14654.28923.1186.217-1.2533.52-29.677-28.028-65.672-49.164-93.001-13.25641.62138.67-16.021132.78227.172331.819263.502271.912255.342264.031243.234239.96232.92240.547239.38232.655207.025230.539193.102174.418164.265170.726133.232111.474101.706105.384
 us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems us-gaap:IntersegmentElimination-2.126NA0.00.0NANA0.00.00.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems us-gaap:OperatingSegments▆▆▆▁▇▇▅██-76.558-79.516-27.295-498.07960.34560.378-147.691111.8784.719NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,hp:InternationalSolutionsSegment-8.357NA-9.54NA3.115NA-5.023NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,hp:NorthAmericaSolutions-72.928NA-25.157NA52.139NA-147.015NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,hp:OffshoreGulfofMexico2.742NA3.013NA6.328NA5.078NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,us-gaap:AllOtherSegments█▃█▃▁▄▂▄▄4.1110.6994.3890.376-1.2371.387-0.7311.1641.554NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherNonoperatingIncomeExpense ▃▂▁▄▄▄▃▄▅▄▄▄▅▇▃▅▅▂▅▅▄▃▄▄▅▄▅▄▄█▃▄▂▄▅▄▄▃▄▅▅▆▅▄▄-1.48-1.673-2.914-0.398-0.399-0.545-1.5990.0170.5410.0490.028-0.1210.532.125-0.9110.1740.387-1.8910.5340.653-0.261-0.989-0.2810.0550.314-0.6050.346-0.032-0.3453.186-1.2140.103-2.084-0.0340.309-0.0420.021-1.161-0.190.2320.1661.5340.2150.0230.015
 us-gaap:PremiumsEarnedNet us-gaap:ConsolidationItems srt:ConsolidationEliminations7.1NA10.410.57.7NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ResearchAndDevelopmentExpenseExcludingAcquiredInProcessCost ▆▅▃▇█▇███▅▆▄▃▃▃▂▂▂▂▂▂▃▃▅▄▄▄▃▄▄▄▃▃▅▄▄▃▄▄▃▃▄▃▃▁5.5834.9153.6386.2146.8786.127.0667.2627.0195.0185.4794.4363.2343.4623.0582.7192.8082.3282.7072.3152.9193.763.3294.8574.1584.1593.8643.6254.2573.8134.3733.6963.3534.6824.2993.833.2494.2554.3993.643.473.8513.2543.3421.815
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax ▁▁▂▄▄▅▅▅▅▅▅▄▄▄▃▃▂▂▂▃▃▄▅▇█▇▇▇▇▆▆▆▆▆▆▆▅▅▅▄▄▄▃▃▃244.781208.267314.405630.29611.398649.05687.974720.868740.598696.825648.872577.484564.087532.304498.564405.283368.59331.708366.486438.191487.847566.11659.694883.0521056.585985.038952.087893.43889.152864.536840.197838.309844.572829.447819.785769.982732.588700.751644.095604.406594.642558.957483.384436.579396.242
us-gaap:Revenues ▁▁▂▅▄▅▅▅▅▅▅▄▄▄▃▃▂▂▂▃▃▄▅▇█▇▇▇▇▆▆▆▆▆▆▆▅▅▅▄▄▄▃▃▃246.377208.267317.364633.639614.657649.05687.974720.868740.598696.825648.872577.484564.087532.304498.564405.283368.59331.708366.486438.191487.847566.11659.694883.0521056.585985.038952.087893.43889.152864.536840.197838.309844.572829.447819.785769.982732.588700.751644.095604.406594.642558.957483.384436.579396.242
us-gaap:SellingGeneralAndAdministrativeExpense ▃▁▄▄▆▆▅▄██▇▆▅39.30332.61943.10841.97849.80849.81246.5943.50654.50853.61452.3148.23646.459NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
  2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
us-gaap:Assets ▂▂▃▃▅▅▅▅▅▅▆▆▆▆▆▆▆▇▇▇████▇▇▇▆▆▆▅▅▅▄▄▄▃▃▂▂▁▁4726.7534829.6214962.3265176.7545841.515839.5155897.3796144.5626144.3416214.8676265.8726261.7926362.0966439.9886513.8916538.1846677.6376832.0196976.5197025.1057130.2747152.0127335.8177344.156801.5196721.8616693.0826488.2816410.5876264.8276197.6116012.4525934.2885721.0855518.3015441.0725257.8875003.8914911.0364725.7124465.6194265.37NANANA
us-gaap:LiabilitiesAndStockholdersEquity ▂▂▃▃▅▅▅▅▅▅▆▆▆▆▆▆▆▇▇▇████▇▇▇▆▆▆▅▅▅▄▄▄▃▃▂▂▁▁4726.7534829.6214962.3265176.7545841.515839.5155897.3796144.5626144.3416214.8676265.8726261.7926362.0966439.9886513.8916538.1846677.6376832.0196976.5197025.1057130.2747152.0127335.8177344.156801.5196721.8616693.0826488.2816410.5876264.8276197.6116012.4525934.2885721.0855518.3015441.0725257.8875003.8914911.0364725.7124465.6194265.37NANANA
us-gaap:StockholdersEquity ▁▁▂▂▄▄▄▅▅▆▆▆▆▅▅▅▆▆▇▇▇████▇▇▇▆▆▅▅▄▃▃▂▂▁3224.9183318.5143396.0573461.0063975.5374012.2234095.0544318.624326.2384382.7354442.4914503.1534590.354164.5914249.9044347.3944475.9154560.9254701.4624782.14830.2934897.4525021.5095002.3764921.2224890.9774819.0874688.0734568.6124443.7274295.0244174.6323990.3953834.9983634.593602.0963445.8083270.047NANANA2807.465NANANA
  2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
us-gaap:AssetsCurrent ▃▃▄▅▅▅▅▄▄▅▅▅▅▅▆▆▇██▇▇▇▇█▅▆▇▇▇▆▆▃▃▃▃▄▄▃▃▂▁▁952.724963.327990.5441120.1161154.6441115.0861116.2381048.0041042.7471115.551133.4781130.9831166.3461235.2671250.3881363.8871445.2831572.6861537.6721460.3771476.6761439.0071501.6911568.3691209.9921277.3661450.4211388.9841391.291258.2111280.49931.976979.432895.228942.577999.361003.428956.313882.609803.587710.424652.804NANANA
 us-gaap:Cash us-gaap:StatementGeographical country:AR23.8NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue ▄▅▄▃▃▃▃▃▂▃▃▃▄▅▅▇▇████▆▇▆▃▃▅▅▅▄▄▂▂▁▂▃▃▃▃▂▂▁▁▁▁373.98487.884426.245336.089355.01347.943334.775243.912228.462284.355306.426334.764383.664521.375572.787741.746825.893905.561907.032898.013848.23717.977770.918719.127251.636360.909549.928584.979581.414447.868480.48172.993241.14696.095148.866324.385347.859364.246288.065240.685173.82463.0277.71799.945109.875
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents ▅▇▆▄▄▄▄▁▁▂▃▄▅█422.653536.747476.224380.219394.315382.971369.106278.107262.59326.185347.942380.055428.688560.509NANANA935.127NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ShortTermInvestments █▅▃▂▃▃▂▁▂▂▂▂▂▂▂▂▂▂▂▂▂▂149.82289.33565.78745.65557.04452.9645.74826.11841.07241.46144.27945.2742.54144.49139.89448.01245.26344.14849.56545.52647.70845.543NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AccountsReceivableNetCurrent ▅▁█233.623150.249302.194NANA461.774NANANA530.859NANANA398.348NANANA286.998NANANA445.948NANANANANANANANANANANANANANANA460.54444.214433.18412.399457.659NANANA
us-gaap:ReceivablesNetCurrent NA192.623NA531.556500.947495.602508.183552.737545.731565.202565.321545.348535.271477.074440.872345.546326.771375.169351.317330.726373.896449.344490.224623.706734.329705.214705.787624.108630.24621.42622.405603.238580.173620.489604.347511.203495.389460.54NANANA457.659NANANA
us-gaap:InventoryNet ▄▅▅▅▇▇▇███▇▇▇▇▇▆▆▆▆▆▆▆▆▆▅▅▅▄▄▄▄▃▃▃▃▂▂▂▁▁▁▁99.353104.18113.034112.474148.688149.653150.126161.526159.992158.134152.109143.177139.066137.204138.403131.679126.082124.325128.885129.649127.242128.729128.217124.269110.773106.241106.2599.82997.33588.86686.58682.72578.5578.77770.41961.4158.90754.40748.91145.84343.76443.402NANANA
us-gaap:OtherAssetsCurrent NA13.421NANANA5.037NANANA2.151NANANA8.293NANANA8.689NANANA15.265NANANA19.15NANANA16.276NANANA8.903NANANA11.208NANANA12.216NANANA
us-gaap:PrepaidExpenseAndOtherAssetsCurrent █▇▆██▄▅▃▄▄▃▃▄▂▂▄▅▅▅▂▄▄█▆▇▆▄▃▃▆▄▁▁▅▇▅▅▁▅95.94689.30583.28494.34292.95568.92877.40663.71167.4966.39865.34362.42465.80255.1258.42570.06775.92678.06779.02156.23371.15172.11795.32779.13290.11881.27769.32459.09161.22279.93868.27750.4548.55774.69390.68172.9177.70749.73674.253NANA64.171NANANA
  2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
us-gaap:PropertyPlantAndEquipmentGross ▁▁▂▂▅▆▇█▇▆8429.8098486.28554.7898563.9449022.419161.7049186.3159377.0349275.7279146.247NANANA8882.934NANANA8487.629NANANA8603.65NANANA7899.823NANANA7020.915NANANA6306.098NANANA5341.061NANANA4683.694NANANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment ██▇▆▅▅▅▃▂▁4877.7024839.8594800.5834723.7314610.0514659.624602.6424490.0864375.3884288.865NANANA3881.883NANANA3342.896NANANA3036.415NANANA2711.279NANANA2344.812NANANA1954.527NANANA1663.991NANANA1408.674NANANA
us-gaap:AmortizationOfIntangibleAssets ▇▇▇▇█▆▅▅▅▅▅▇▁1.81.71.81.81.91.61.41.41.41.51.41.70.8NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PropertyPlantAndEquipmentNet ▂▂▂▃▄▅▅▆▆▆▆▆▆▆▆▆▆▇▇▇████▇▇▆▆▅▅▅▅▅▄▄▃▃▂▂▁▁▁3552.1073646.3413754.2063840.2134412.3594502.0844583.6734886.9484900.3394857.3824883.3784898.5254950.45001.0515062.9145061.3685102.6795144.7335306.4345446.3525530.8175567.2355630.3115572.8185400.0165188.5444943.664801.2364693.774676.1034613.3014560.5624491.0514351.5714170.3033975.2393832.0013677.073553.7433420.6353336.6243275.02NANANA
us-gaap:LongTermInvestments ▁▁▁▁▁▁▁▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▃▃▃▄▅▅▅▅▅█▇▇▆▇▇▆▇█▆▅34.01831.58525.2820.335.14931.99148.29160.24754.73198.69692.70273.35683.94384.02676.98688.299105.17784.95599.89883.36385.276104.354159.976164.648165.581236.644279.428284.67312.455316.154287.634501.383441.794451.144382.527444.365399.995347.924453.046480.939397.793320.712NANANA
us-gaap:Goodwill ▁▁▁▁██▅▅▅▅▅▅▅▂▂45.65345.65345.65345.65382.78682.78667.90267.90267.90264.77769.49669.49669.34751.70551.967NANA4.718NANANA4.718NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IntangibleAssetsNetExcludingGoodwill ▇▇▇███▅▅▅▅▆▆▆▁▁79.22681.02782.7484.53386.32986.71669.09370.53171.96973.20775.56477.00178.63650.78551.569NANA0.919NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:FiniteLivedIntangibleAssetsNet ▅▆▆▇██▁▂▂▃79.22681.02782.7484.53386.32986.71669.09370.53171.96973.207NANANA49.866NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OperatingLeaseRightOfUseAsset ▇▇▇██▁42.9244.58347.53448.7352.190.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsNoncurrent ▄▃▃▃▃▄▂▂▁▁▂▂▂▃▄▅▄▅▆▆▇██▇▅▄▄▂▂▃▃▃▄▄▄▄▄▄▄▄▄▃20.10517.10516.36917.20918.05320.85212.18210.936.6535.25511.25412.43113.42417.15420.06724.6324.49829.64532.51535.01337.50541.41643.83938.31525.9319.30719.57313.39113.07214.35916.18618.53122.01123.14222.89422.10822.46322.58421.63820.55120.77816.834NANANA
 us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByFairValueHierarchyLevel,us-gaap:FairValueByMeasurementFrequency us-gaap:FairValueInputsLevel1,us-gaap:FairValueMeasurementsRecurring▂▁▁▁▃▃▆█▇10.2067.2748.5976.30718.79415.97432.22645.52139.652NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByFairValueHierarchyLevel,us-gaap:FairValueByMeasurementFrequency us-gaap:FairValueInputsLevel2,us-gaap:FairValueMeasurementsRecurring▁█▁▁▁▁▁▁▁0.3433.9920.3430.3430.2930.2930.2910.2660.123NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByFairValueHierarchyLevel,us-gaap:FairValueByMeasurementFrequency us-gaap:FairValueInputsLevel3,us-gaap:FairValueMeasurementsRecurring█▃▁▁▁▁▁1.50.50.00.00.00.00.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByMeasurementFrequency us-gaap:FairValueMeasurementsRecurring▂▂▁▁▃▃▆█▇12.04911.7668.946.6519.08716.26732.51745.78739.775NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
us-gaap:AccountsPayableCurrent ▂▁▁▆▅▅▆▆▆▆▆▅▅▆▆▅▅▄▄▄▄▅▅█▇█▆▆▆▆▆▄▄▇▄▄▅▄▃▃▂▃46.61736.46836.181144.794122.609123.146134.077130.721141.406132.664143.732123.012126.936135.628137.206127.116111.63895.42292.69291.43796.442110.704128.67172.373168.346182.031139.396135.3130.49144.379134.15394.653107.553159.4288.85598.007122.232103.85274.31271.10858.00980.534NANANA
us-gaap:AccruedLiabilitiesCurrent ▂▂▃▅██▆▆▆▆▅▄▅▄▄▃▃▅▃▆▇▄▃▃▅▇▆▃▅▃▆▂▇▃▄▂▃▃▃▁▁▁154.266155.442178.742232.625296.738287.092256.449242.986244.507244.504237.935217.095228.732208.683196.643174.261174.92234.639194.645240.665269.946198.053175.282176.256234.932282.278244.539184.847229.998189.684254.732166.237274.475176.615204.578167.519186.446192.898182.427138.758147.893144.112NANANA
us-gaap:ContractWithCustomerLiabilityCurrent NA9.266NANANA25.426NANANA20.527NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:DividendsPayableCurrent █▁▂27.37827.22627.244NANA77.763NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LiabilitiesCurrent ▁▁▂▅▆▆▅▅▅▅▅▄▄▄▄▃▃▄▄▅▆▄▄▅▇██▆▇▇▆▃▆▅▆▅▆▆▂▁▁▁228.261219.136242.167377.419419.347410.238390.526373.707385.913377.168381.668340.185355.762344.385333.929301.417286.628330.12326.609371.328408.79351.228346.503391.145447.456507.526502.111438.488478.737452.273432.854304.537427.233381.164413.589385.724428.849416.729261.909215.748211.82232.638NANANA
us-gaap:OperatingLeaseLiabilityCurrent NA11.36411.79213.41215.287NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAccruedLiabilitiesCurrent NA9.36NANANA8.599NANANA8.92NANANA13.485NANANA4.7NANANA23.448NANANA20.228NANANA18.603NANANA19.374NANANA23.736NANANA18.255NANANA
  2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
us-gaap:LiabilitiesNoncurrent ▁▂▂▂▃▃▃▃▃▃▃▃▃██▇███▇▇▇██▃▂▂▂▂▂▃▄▄▄▃▃▂▂▃▂▂▁1273.5741291.9711324.1021338.3291446.6261417.0541411.7991452.2351432.191454.9641441.7131418.4541415.9841931.0121930.0581889.3731915.0941940.9741948.4481871.6771891.1911903.3321967.8051950.6291432.8411323.3581371.8841361.721363.2381368.8271469.7331533.2831516.661504.9231470.1221453.2521383.231317.1151428.8891382.971290.4571225.267NANANA
us-gaap:LongTermDebt ▂▂▁▁▁▁▇▇▆█481.187480.727480.269479.811479.355479.356491.651491.227490.805493.968NANANA492.902NANANA491.8532.4532.1531.8531.5571.5572.180.080.0195.0195.0195.0195.0235.0235.0235.0235.0350.0350.0350.0350.0350.0NANA360.0NANANA
us-gaap:LongTermDebtNoncurrent ▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇██▁▁▂▂▂▂▃▃▃▃▄▄▄▄▅▅▅▆481.187480.727480.269479.811479.355479.356491.651491.227490.805493.968493.7493.433493.168492.902492.637492.373492.11491.847493.15492.919492.668492.443532.388532.90840.040.080.080.080.080.0195.0195.0195.0195.0235.0235.0235.0235.0350.0350.0350.0360.0NANANA
us-gaap:DeferredIncomeTaxLiabilitiesNet ▁▁▃▃▆▆▇█635.443650.675685.589700.36798.802806.611827.027861.44NA853.136NANANANANANANANANANANA1371.726NANANA1271.628NANANANANANANANANANANANANANANANANANANA
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent NA30.025NANANA28.653NANANA11.25NANANA17.115NANANA18.938NANANA9.313NANANA2.889NANANA5.717NANANA25.249NANANA37.559NANANA40.528NANANA
us-gaap:OtherLiabilitiesNoncurrent ██▇▇█▅▃▃▃▄▄▄▃▄▅▃▃▄▄▄▄▅▄▄▂▁▁▁▁▂▃▃▄▄▄▄▄▄▄▄▄▄151.07147.18143.162142.664153.026115.74678.4984.98984.56593.60699.72793.66187.852101.409108.94683.55286.359102.78193.22195.98497.783111.104105.06993.1871.35664.1157.46557.45860.07865.35180.60885.5692.86198.39399.394102.60397.494104.28591.661102.2799.66591.606NANANA
us-gaap:OperatingLeaseLiabilityNoncurrent NA33.88635.71335.31836.903NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo NA8.133NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree NA7.466NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour NA7.018NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NA3.231NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NA0.638NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
us-gaap:StockholdersEquity ▁▁▂▂▄▄▄▅▅▆▆▆▆▅▅▅▆▆▇▇▇████▇▇▇▆▆▅▅▄▃▃▂▂▁3224.9183318.5143396.0573461.0063975.5374012.2234095.0544318.624326.2384382.7354442.4914503.1534590.354164.5914249.9044347.3944475.9154560.9254701.4624782.14830.2934897.4525021.5095002.3764921.2224890.9774819.0874688.0734568.6124443.7274295.0244174.6323990.3953834.9983634.593602.0963445.8083270.047NANANA2807.465NANANA
us-gaap:CommonStockValue █████████████████▇▇▇▇▆▆▆▆▆▆▅▄▃▃▃▃▂▂▂▂▁▁▁▁▁11.22211.21511.21511.21511.21511.20811.20811.20811.20811.20111.20111.20111.20111.19611.1911.18811.18811.1411.13811.13611.1311.09911.08611.08511.08311.05111.04811.03210.96210.87410.84810.84310.82610.7610.75910.75610.74910.72410.71410.70610.70610.706NANANA
us-gaap:AdditionalPaidInCapitalCommonStock ███████▇▇█▇▇▇▇▇▇▇▆▆▆▆▆▆▅▅▅▅▅▄▃▃▃▂▂▂▂▂▁▁▁▁▁511.956521.628514.673509.928499.277510.305501.585493.421484.122500.393494.604487.135479.914487.248478.231470.918463.859448.452442.883436.117427.59420.141409.159402.442395.325383.972376.465359.995322.889288.758273.287265.943254.689236.24231.044225.917218.724210.909205.009200.095193.341191.9NANANA
us-gaap:RetainedEarningsAccumulatedDeficit ▂▂▃▃▅▅▅▆▆▆▆▆▇▅▅▆▆▇▇▇█████▇▇▇▆▆▆▅▅▄▄▃▃▂▂▂▁▁2911.0063010.0123096.1683168.9663666.263714.3073750.7853979.7083997.2834027.7794103.4184189.4974278.3263855.6863954.7054052.9744178.2354289.8074438.7484536.0474589.5974649.9524745.7714729.394654.3494525.7974431.9744314.5714208.0744102.6633996.533783.893648.8723505.2953355.6033213.1133090.9462954.212840.3152738.0082645.6622547.917NANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▁▁▁▁▁▁▁▁▁▂▂▂▂▂▂▂▂▂▂▁▁▂▃▃▃▄▅▅▆▆▅█▇▇▅▇▆▅▇▇▆▄-25.731-26.188-27.082-27.603-28.119-28.635-16.085-12.072-12.29616.558.942-5.2212.0392.3-4.1012.43312.574-0.204-3.156-13.214-12.074-1.37736.96240.07241.07883.126112.445113.425129.716132.53105.457205.054167.106166.807121.288158.804131.78598.908168.904184.083132.41284.107NANANA
 us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedDefinedBenefitPlansAdjustment▂▂▂▁▁▁▆███▆▆▆▆▅▄-25.731-26.188-27.082-27.603-28.119-28.635-16.085-12.072-12.296-12.521-16.785-17.122-17.43-17.77-20.006-20.371NA-21.103NANANA-18.578-13.702-13.899-14.096-14.292-11.194-11.339-11.484-11.631NANANA-23.044NANANANANANANANANANANA
 us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedOtherComprehensiveIncome▁▁▁▁▁▁▃▄▄█▇▅▆▆▅▆-25.731-26.188-27.082-27.603-28.119-28.635-16.085-12.072-12.29616.558.942-5.2212.0392.3-4.1012.433NA-0.204NANANA-1.377NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue 7.451NA7.62410.75110.2018.8258.8789.4317.1588.2157.9268.4597.0876.9366.7686.5785.9014.7225.6746.0667.9216.0756.0416.0976.9825.6148.2855.7947.015.85.7455.6986.0284.7784.5424.8363.9222.9872.972.9573.187NANANANA
  2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▁▃▅▃▃▄▅▄▅▄▄▃▂▃▃▃▂▃▃▄▆▆▇█▇▆▅▅▆▅▆▄▇▇▄▅▅▆▅▅▅▃▃▃▃-19.60492.628213.611120.861111.781196.38250.353199.536209.482186.11161.427124.77972.215121.08389.77575.69170.668138.187122.893184.321308.196271.205334.955422.892389.692320.632257.884235.153304.858235.542267.33152.391341.922387.354174.156202.184236.638281.109244.696213.092238.655129.251107.528103.193122.316
us-gaap:NetCashProvidedByUsedInInvestingActivities ▆▇▆▇▇▆▆▅▄▅▅▆▅▆▄▆▆▇▆▆▅▄▄▁▁▂▃▄▅▄█▄▄▂▃▄▃▄▄▅▅▅▆▆▆-65.203-0.861-40.074-23.915-23.035-48.675-81.368-105.863-186.73-130.178-116.158-97.182-128.844-96.41-182.835-83.7-82.043-23.197-40.063-60.229-110.73-202.536-205.901-385.33-362.821-321.579-231.244-187.364-132.73-184.21954.62-210.292-193.928-307.881-275.247-220.37-246.788-195.431-198.877-156.033-117.196-107.802-75.171-64.003-62.284
us-gaap:NetCashProvidedByUsedInFinancingActivities ▂▂▂▁▂▁▂▂▂▂▂▂▂▂▂▂▂▁▂▂▂▁▂█▁-29.287-31.244-77.532-111.042-77.402-133.84-77.986-78.156-86.347-78.003-73.607-76.497-81.082-76.085-75.899-76.138-68.293-116.461-73.811-74.309-78.62-121.61-77.263431.848-138.063NA-61.691NANANANANA-2.943-132.244-74.428-5.288-6.237-9.4971.5619.802-10.655-36.146-54.585-49.12-46.299
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▂▇█▅▅▅█▆▃▄▄▄▁-114.09460.52396.005-14.09611.34413.86590.99915.517-63.595-21.757-32.113-48.633-131.821NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
us-gaap:DeferredIncomeTaxExpenseBenefit ▆▆▆▅▆▆▆▇▇▇▇▇▁▇▇▆▆▆▇▆▇▆▇▇█▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇-15.016-35.189-15.488-98.912-7.966-19.051-34.337.721.10711.7337.882-2.629-503.7443.6876.24-16.965-17.073-17.79873.009-15.29220.169-15.28412.6794.637129.548-1.54114.91411.8081.94313.735-4.3058.48911.63852.20244.58642.55857.58532.02160.01153.53942.0868.97713.04115.4388.235
us-gaap:DepreciationDepletionAndAmortization ▄▄▄▅▅▅▆▆▆▆▆▆▆▇▆▇▅█▆▆▆█▆▆▆▆▅▅▅▅▄▄▄▄▃▃▃▃▂▂▂▂▁▁▁106.861109.587110.161132.006130.131134.886143.297143.161141.46150.281144.579145.675143.267153.876145.043152.777133.847176.251138.69141.517142.129175.376144.295149.708137.613150.371128.978123.963120.237118.801117.79112.433106.599115.14595.18290.93486.28887.01879.10976.16173.1873.2465.20863.49360.717
us-gaap:IncreaseDecreaseInAccountsPayable ▅▄▂▅▄▄▄▃▅▃▅▄▄▄▅▅▅▄▄▄▃▄▂▄▄▅▄▄▃▅▄▃▁█▄▂▅▆▄▅▃▅▄▅▃9.7386.756-37.93423.344-1.58-9.4232.915-10.6518.012-10.97419.632-4.122-8.997-1.98610.03915.47615.8832.736-0.069-3.02-10.554-2.685-32.5855.493-4.37310.158-5.9030.364-25.70110.7547.17-15.684-54.31668.805-1.646-30.63618.38331.7412.9087.296-24.58323.545-1.1312.1-17.755
us-gaap:IncreaseDecreaseInAccountsReceivable ▆▃▁▆▆▅▅▆▅▅▆▆▇▆▇▆▅▆▆▅▄▅▃▃▆▆▇▅▆▆▆▆▅▆▇▆▆▆▆▆▅█▇▆▆32.586-111.527-226.99734.4483.269-7.321-49.366.058-19.7-2.30625.7178.01353.77834.17293.2215.77-46.04824.90617.524-43.139-72.083-34.846-133.519-110.62329.115-0.57981.679-6.3268.82-0.89119.15626.855-40.31416.34593.14415.81434.85116.42911.03420.783-45.259122.86154.3920.74825.917
us-gaap:IncreaseDecreaseInInventories ▂▁▄▅▃▄▂▄▄▆▇▅▄▃▅▆▄▃▄▅▃▄▅█▅▄▆▅▆▄▅▅▄▆▇▅▅▅▅▄▄▄▅▄▄-4.612-8.8540.2772.345-0.965-0.348-4.7411.411.8587.5228.9324.1111.862-1.1994.5335.5521.721-2.288-0.7642.407-1.2990.5123.94813.4964.532-0.0096.4212.4948.4692.283.8614.1751.9736.1589.0092.5034.54.8013.7632.1560.285-0.1032.768-0.4521.645
us-gaap:NetCashProvidedByUsedInOperatingActivities ▁▃▅▃▃▄▅▄▅▄▄▃▂▃▃▃▂▃▃▄▆▆▇█▇▆▅▅▆▅▆▄▇▇▄▅▅▆▅▅▅▃▃▃▃-19.60492.628213.611120.861111.781196.38250.353199.536209.482186.11161.427124.77972.215121.08389.77575.69170.668138.187122.893184.321308.196271.205334.955422.892389.692320.632257.884235.153304.858235.542267.33152.391341.922387.354174.156202.184236.638281.109244.696213.092238.655129.251107.528103.193122.316
us-gaap:NetIncomeLoss ▄▄▄▁▄▅▃▅▄▄▄▄█▄▄▄▄▄▄▄▄▄▅▅▆▅▆▆▆▅▆▅▅▅▅▅▅▅▅▅▅-70.431-58.963-45.599-420.5430.60541.177-154.68360.89118.9592.453-8.008-11.879500.106-22.532-21.799-48.818-35.063-72.835-21.221.20516.002-21.21490.86149.537203.042168.688192.279174.57173.182159.797266.159151.08159.603157.115149.925129.719144.286121.42109.82698.79104.15NANANANA
 us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings-70.431NA-45.599-420.5430.60541.177-154.68360.89118.9592.453-8.008-11.879500.106-22.532-21.799-48.818-35.063-72.835-21.221.20516.002-21.21490.86149.537203.042168.688192.279174.57173.182159.797266.159151.08159.603157.115149.925129.719144.286NANANANANANANANA
us-gaap:ShareBasedCompensation ▅▂██▇▆▆▇▅▆▅▆▅▄▄▄▄▃▃▄▅▄▄▄▄▃▆▃▄▃▃▃▄▃▂▃▂▁▁▁▁▁▁▁▄7.4514.2711.10710.75110.2018.8258.8789.4317.1588.2157.9268.4597.0876.9366.7686.5785.9014.7225.6746.0667.9216.0756.0416.0976.9825.6148.2855.7947.015.85.7455.6986.0284.7784.5424.8363.9222.9872.972.9573.1872.9812.9492.9177.008
  2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ▆▇▆▇▇▆▆▅▄▅▅▆▅▆▄▆▆▇▆▆▅▄▄▁▁▂▃▄▅▄█▄▄▂▃▄▃▄▄▅▅▅▆▆▆-65.203-0.861-40.074-23.915-23.035-48.675-81.368-105.863-186.73-130.178-116.158-97.182-128.844-96.41-182.835-83.7-82.043-23.197-40.063-60.229-110.73-202.536-205.901-385.33-362.821-321.579-231.244-187.364-132.73-184.21954.62-210.292-193.928-307.881-275.247-220.37-246.788-195.431-198.877-156.033-117.196-107.802-75.171-64.003-62.284
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▁▁▁▂▂▂▂▃▄▃▃▃▂▃▃▂▂▁▁▂▃▄▅██▇▆▅▃▄▄▅▅▇▆▅▅▄▅▄▃▃▂▂▂13.98519.83526.64848.29146.02154.83273.59133.886196.094143.926131.45699.50491.69897.292124.97293.17682.12737.6239.06866.011114.47161.625208.492394.336369.029330.864265.275216.11140.643190.516180.077219.029219.444323.437281.542235.758256.943200.488207.525170.027116.224109.37277.88277.52764.791
  2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▂▂▂▁▂▁▂▂▂▂▂▂▂▂▂▂▂▁▂▂▂▁▂█▁-29.287-31.244-77.532-111.042-77.402-133.84-77.986-78.156-86.347-78.003-73.607-76.497-81.082-76.085-75.899-76.138-68.293-116.461-73.811-74.309-78.62-121.61-77.263431.848-138.063NA-61.691NANANANANA-2.943-132.244-74.428-5.288-6.237-9.4971.5619.802-10.655-36.146-54.585-49.12-46.299
us-gaap:PaymentsOfDividendsCommonStock ▃▃████████████████████████▇▇▆▆▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁26.91827.21177.23478.28877.60278.36378.47878.45878.12278.06276.93576.9376.50376.45476.44476.44176.17676.11274.7474.7474.5674.5474.4874.52574.82274.84467.99767.68553.8653.53416.0516.0377.4327.4297.557.5487.5227.5196.4386.4086.3766.3635.3045.35.287
  2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value111111111111111111111111111111111111111111111111111111111010101010101010101010101010
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.3

Shares Issued

us-gaap:SharesIssued us-gaap:StatementEquityComponents

us-gaap:SharesIssued

us-gaap:CommonStock


Shares
Period End2020-12-312020-09-302019-12-312019-09-302011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302009-09-302008-09-30
Value1121121121121070.1072431071071071070.1070580.107058
Percentage of SharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TreasuryStockCommon


Shares
Period End2020-12-312020-09-302019-12-312019-09-30
Value4.3684.6633.2743.642
Percentage of SharesIssued3.94.22.93.2

Common Stock Shares Issued

us-gaap:CommonStockSharesIssued us-gaap:StatementEquityComponents

us-gaap:CommonStockSharesIssued

us-gaap:CommonStock


Common
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302010-09-302009-09-30
Value112112112112112112112112112112112112111111111111111111111111110110110110110110110109108108108108107107107107107107
Percentage of CommonStockSharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TreasuryStockCommon


Common
Period End2020-09-302019-09-302018-09-302017-09-30
Value4.6633.6423.0153.353
Percentage of CommonStockSharesIssued4.23.22.73.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2020-12-312020-06-302020-03-312019-12-312019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312017-06-302017-03-312016-12-312016-06-302016-03-312015-12-312015-06-302015-03-312014-12-312014-06-302014-03-312013-12-312013-06-302013-03-312012-12-312012-06-302012-03-312011-12-312011-06-302011-03-312010-12-312010-06-302010-03-312009-12-31
Value107107108108109109109108108109108108108108108108108108108109109108107107107108109108108108107107107107
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2020-12-312020-06-302020-03-312019-12-312019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312017-06-302017-03-312016-12-312016-06-302016-03-312015-12-312015-06-302015-03-312014-12-312014-06-302014-03-312013-12-312013-06-302013-03-312012-12-312012-06-302012-03-312011-12-312011-06-302011-03-312010-12-312010-06-302010-03-312009-12-31
Value107107108108109109109108108108108108108108108107107107107108107107106106105107107107106106106105105105
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount


Antidilutive
Period End2020-12-312020-06-302020-03-312019-12-312019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312017-06-302017-03-312016-12-312016-06-302016-03-312015-12-312015-06-302015-03-312014-12-312014-03-312013-12-312013-06-302013-03-312012-12-312012-06-302012-03-312011-12-312011-03-312010-12-312010-06-30
Value4494000.04708000.04579000.03413000.02753000.02921000.02089000.0929000.01613000.03377000.01332000.0566000.0555000.03409000.02211000.01899000.0592000.0667000.0669000.0215000.0261000.0750000.0752000.0806000.0755000.0435000.0761000.0313000.0324000.0554000.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value-0.66-0.55-0.43-3.880.270.37-1.420.550.170.02-0.08-0.124.57-0.21-0.21-0.45-0.33-0.68-0.20.190.15-0.20.841.381.871.551.771.611.611.492.491.411.51.481.41.21.341.131.020.920.980.78-0.350.440.6
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value-0.66-0.55-0.43-3.880.270.37-1.420.550.170.02-0.08-0.124.55-0.21-0.21-0.45-0.33-0.68-0.20.190.15-0.20.831.371.851.531.751.591.591.472.461.391.481.461.381.181.321.111.010.910.960.77-0.340.430.59
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Income Loss From Continuing Operations Per Basic Share

us-gaap:IncomeLossFromContinuingOperationsPerBasicShare

us-gaap:IncomeLossFromContinuingOperationsPerBasicShare


Income
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value-0.73-0.57-0.43-3.880.270.38-1.420.650.070.02-0.08-0.034.57-0.2-0.22-0.45-0.33-0.68-0.20.230.15-0.20.841.381.871.551.771.611.611.492.351.411.51.411.41.21.341.131.020.920.980.780.610.70.61
Percentage of IncomeLossFromContinuingOperationsPerBasicShare100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Income Loss From Continuing Operations Per Diluted Share

us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare

us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare


Income
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value-0.73-0.57-0.43-3.880.270.38-1.420.650.070.02-0.08-0.034.55-0.2-0.22-0.45-0.33-0.68-0.20.230.15-0.20.831.371.851.531.751.591.591.472.321.391.481.391.381.181.321.111.010.910.960.770.610.680.6
Percentage of IncomeLossFromContinuingOperationsPerDilutedShare100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Allocated Share Based Compensation Expense

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:AllocatedShareBasedCompensationExpense


Allocated
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value7.4517.7537.62410108.8258.8789.4317.1588.2157.9268.4597.0876.9366.7686.5785.9014.7225.6746.0667.9216.0756.0416.0976.9825.6148.2855.7947.015.85.7455.6986.0284.7784.5424.8363.9222.9872.972.9573.1872.9812.949
Percentage of AllocatedShareBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.03.72.41.71.71.41.31.31.01.21.21.51.31.31.41.61.61.41.51.41.61.10.90.70.70.60.90.60.80.70.70.70.70.60.60.60.50.40.50.50.50.50.6

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:AwardType

hp:ShareBasedPaymentArrangementBenefit


Allocated
Period End2020-09-302020-06-302019-06-30
Value0.0-3.4830.0
Percentage of AllocatedShareBasedCompensationExpense0.0-45.70.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0-1.10.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax hp:ShareBasedPaymentArrangementBenefit0.00.00.0

us-gaap:EmployeeStockOption


Allocated
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value0.3180.3440.4220.4160.5710.6480.7190.9381.4162.0261.8152.1091.9631.9841.9341.8691.6521.2421.7221.7763.551.9461.931.9083.062
Percentage of AllocatedShareBasedCompensationExpense4.34.45.53.95.67.38.19.919.824.722.924.927.728.628.628.428.026.330.329.344.832.031.931.343.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.20.10.10.10.10.10.10.20.30.30.40.30.40.40.50.40.40.50.40.70.30.30.20.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:EmployeeStockOption0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:PerformanceShares


Allocated
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value1.1221.1631.9692.0622.261.4021.3881.6320.00.00.0
Percentage of AllocatedShareBasedCompensationExpense15.115.025.819.222.215.915.617.30.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.50.60.60.30.40.20.20.20.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:PerformanceShares0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RestrictedStock


Allocated
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value6.0116.2468.7168.2737.376.7756.7716.8615.7426.1896.1116.355.1244.9524.8344.7094.2493.483.9524.294.3714.1294.1114.1893.92
Percentage of AllocatedShareBasedCompensationExpense80.780.6114.377.072.276.876.372.780.275.377.175.172.371.471.471.672.073.769.770.755.268.068.168.756.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.53.02.81.31.21.01.01.00.80.90.91.10.90.91.01.21.21.01.11.00.90.70.60.50.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RestrictedStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:IncomeStatementLocation

hp:ContractDrillingCostsExcludingDepreciationAndAmortization


Allocated
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value1.81.52.42.92.42.11.91.81.6
Percentage of AllocatedShareBasedCompensationExpense24.219.331.527.023.523.821.419.122.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.70.70.80.50.40.30.30.20.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax hp:ContractDrillingCostsExcludingDepreciationAndAmortization0.00.00.00.00.00.00.00.00.0

us-gaap:ResearchAndDevelopmentExpense


Allocated
Period End2020-12-31
Value0.3
Percentage of AllocatedShareBasedCompensationExpense4.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ResearchAndDevelopmentExpense0.0

us-gaap:SellingGeneralAndAdministrativeExpenses


Allocated
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value5.45.48.77.97.86.76.97.65.6
Percentage of AllocatedShareBasedCompensationExpense72.569.7114.173.576.575.977.780.678.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.22.62.81.31.31.01.01.10.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:SellingGeneralAndAdministrativeExpenses0.00.00.00.00.00.00.00.00.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value-69.974-58.069-45.078-420.0243128-154.4576119106.155-19.139499-16.131-28.333-58.959-22.285-69.883-11.142205.305-59.553871481601391911581701861661891592021121561775194150152
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-28.6-27.9-14.3-66.65.14.4-22.58.52.61.40.9-3.388.6-3.0-5.7-14.5-6.0-21.1-3.04.61.1-10.513.316.815.214.120.117.719.221.619.822.518.924.413.720.424.27.314.724.925.6

Cost Of Goods And Service Excluding Depreciation Depletion And Amortization

us-gaap:CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization

us-gaap:CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization


Cost
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value198162205417389430443441487
Percentage of CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax81.278.065.366.363.766.464.461.365.8

Costs And Expenses

us-gaap:CostsAndExpenses

us-gaap:CostsAndExpenses


Costs
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value3392833741152583610855625686673642578560561526470417424379396449582526655724721680638625621600605604590587562502507469440423425371334290
Percentage of CostsAndExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax138.7136.2119.3182.895.494.0124.486.892.796.799.0100.299.4105.6105.6116.2113.3128.0103.690.592.1102.879.974.368.673.271.471.470.371.971.472.271.571.171.673.168.572.472.972.871.376.276.976.773.4

Gain Loss On Investments

us-gaap:GainLossOnInvestments

us-gaap:GainLossOnInvestments


Gain
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312011-09-302011-06-30
Value2.924-1.3952.267-12.4132.821-4.26-13.2715.878-42.8440.0010.00.023210.01533.2525.50.00.913
Percentage of GainLossOnInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.00.0100.0100.0100.00.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.2-0.70.7-2.00.5-0.7-1.90.8-5.80.00.00.02.52.40.018.30.40.70.00.1

Income Loss From Continuing Operations

us-gaap:IncomeLossFromContinuingOperations

us-gaap:IncomeLossFromContinuingOperations


Income
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value-77.924-60.646-46.007-420.4683041-154.621718.3642.175-8.174-1.633500-21.711-23.125-48.473-34.554-72.869-21.1932515-21.208901492031681921741731592501511591491491291441211099810483647463
Percentage of IncomeLossFromContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-31.8-29.1-14.6-66.75.06.5-22.510.01.10.3-1.3-0.388.8-4.1-4.6-12.0-9.4-22.0-5.85.73.3-3.713.816.919.217.120.219.519.518.529.918.018.918.018.316.919.717.317.116.417.614.913.417.016.1

Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


Income
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value-96.039-83.899-63.585-533.8814428-186.652969.716192.361-5.5550.001-27.909-33.603-70.244-52.842-126.286-18.3513734-21.358127231330262295
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-39.2-40.3-20.2-84.77.34.4-27.113.41.32.70.4-1.00.0-5.2-6.7-17.3-14.3-38.1-5.08.57.1-3.819.426.231.326.731.0

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value-18.115-23.253-17.578-113.41314-13.11-32.031251.3521610-3.922-500.641-6.198-10.478-21.771-18.288-53.4172.8421218-0.1536771289410210089851398186888075846662606247432337
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-7.4-11.2-5.6-18.02.3-2.0-4.73.50.22.41.6-0.7-88.8-1.2-2.1-5.4-5.0-16.10.82.83.8-0.05.68.812.29.610.811.310.19.916.69.710.310.79.99.811.59.59.810.010.58.59.15.59.4

Income Taxes Paid Net

us-gaap:IncomeTaxesPaidNet

us-gaap:IncomeTaxesPaidNet


Income
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value-0.193.0710.12420.9345.0052.0863.4175.71-43.0331.3550.6052.673
Percentage of IncomeTaxesPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.11.50.06.80.20.80.30.50.8-6.20.20.10.5

Interest Expense

us-gaap:InterestExpense

us-gaap:InterestExpense


Interest
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value6.1396.1546.1256.0956.18.0436.2576.1674.726.4715.9936.0285.7732.2446.3646.0845.0556.2616.4075.7214.5245.7466.2582.4710.5610.31.4351.7251.1941.5442.0911.1861.3081.362.4112.4212.4614.173.2215.5134.4514.4653.9614.0384.694
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.53.01.91.01.01.20.90.90.60.90.91.01.00.41.31.51.41.91.71.30.91.00.90.30.10.00.20.20.10.20.20.10.20.20.30.30.30.60.50.90.70.80.80.91.2

Interest Paid Net

us-gaap:InterestPaidNet

us-gaap:InterestPaidNet


Interest
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value0.077110.071110.04613-0.447.0946.148.6140.092110.075
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.05.50.01.80.02.1-0.11.00.81.20.02.00.0

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value-70.431-58.963-45.599-420.543041-154.68360182.453-8.008-11.879500-22.532-21.799-48.818-35.063-72.835-21.22116-21.2149014920316819217417315926615115915714912914412110998104
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-28.8-28.3-14.5-66.75.06.3-22.58.42.60.4-1.2-2.188.7-4.2-4.4-12.0-9.5-22.0-5.84.83.3-3.713.816.919.217.120.219.519.518.531.718.018.918.918.316.819.717.317.116.317.5

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value-70.431-45.599-420.543041-154.68360182.453-8.008-11.879500-22.532-21.799-48.818-35.063-72.835-21.22116-21.21490149203168192174173159266151159157149129144
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-28.8-14.5-66.75.06.3-22.58.42.60.4-1.2-2.188.7-4.2-4.4-12.0-9.5-22.0-5.84.83.3-3.713.816.919.217.120.219.519.518.531.718.018.918.918.316.819.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Income Loss Available To Common Stockholders Basic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic


Net
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value-70.792-59.283-45.93-421.5432940-155.45560182.348-8.725-12.596496-22.994-22.257-49.263-35.509-73.283-21.6512015-20.615901482011671911731721582641501581561491291431211099810483-36.6164663
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-28.9-28.5-14.6-66.94.86.2-22.68.32.50.3-1.3-2.288.0-4.3-4.5-12.2-9.6-22.1-5.94.73.2-3.613.716.819.117.020.119.419.418.431.517.918.818.918.216.819.617.317.016.317.514.9-7.610.716.0

Net Income Loss Available To Common Stockholders Diluted

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted


Net
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value-70.792-59.283-45.93-421.5432940-155.45560182.345-8.725-12.596496-22.994-22.257-49.263-35.509-73.283-21.6512015-20.619901482011671911731721582641501581561491291431211099810382-36.618
Percentage of NetIncomeLossAvailableToCommonStockholdersDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-28.9-28.5-14.6-66.94.86.2-22.68.32.50.3-1.3-2.288.0-4.3-4.5-12.2-9.6-22.1-5.94.73.2-3.613.716.819.117.020.119.419.418.431.517.918.818.918.216.819.617.317.016.317.514.8-7.6

Nonoperating Income Expense

us-gaap:NonoperatingIncomeExpense

us-gaap:NonoperatingIncomeExpense


Nonoperating
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value-2.816-8.469-6.001-15.3413-10.241-18.7781.789-44.573-4.084-3.856-4.302-3.5191.768-5.575-4.572-3.678-33.285-5.095-4.269-4.052-5.337-4.9370.1330.038-0.6382320-1.0862.213150-0.7685.786-1.035-1.773-2.107-2.104-4.953-1.595-4.925-3.971-2.656-2.806-3.728-4.37
Percentage of NonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.2-4.1-1.9-2.42.2-1.6-2.70.2-6.0-0.6-0.6-0.7-0.60.3-1.1-1.1-1.0-10.0-1.4-1.0-0.8-0.9-0.70.00.0-0.12.42.2-0.10.317.9-0.10.7-0.1-0.2-0.3-0.3-0.7-0.2-0.8-0.7-0.5-0.6-0.9-1.1

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value-93.223-75.43-57.584-518.5413139-167.8749554236.217-1.2533.52-29.677-28.028-65.672-49.164-93.001-13.2564138-16.021132227331263271255264243239232240239232207230193174164170133111101105
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-38.1-36.2-18.3-82.35.16.0-24.413.27.33.31.0-0.20.6-5.6-5.6-16.2-13.3-28.0-3.69.57.9-2.820.125.731.426.828.628.629.728.128.627.828.528.928.426.931.527.627.127.228.723.823.123.326.6

us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems

us-gaap:IntersegmentElimination


Operating
Period End2020-12-312020-06-302020-03-312019-06-302019-03-312018-12-31
Value-2.1260.00.00.00.00.0
Percentage of OperatingIncomeLoss2.3-0.0-0.0-0.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.90.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:IntersegmentElimination0.00.00.0-0.00.00.0

us-gaap:OperatingSegments


Operating
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value-76.558-79.516-27.295-498.0796060-147.69111184
Percentage of OperatingIncomeLoss82.1105.447.496.1192.4154.788.0117.6156.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-31.3-38.2-8.7-79.09.99.3-21.515.511.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments0.00.00.00.00.00.0-21.50.00.0

us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, hp:InternationalSolutionsSegment


Operating
Period End2020-12-312020-06-302019-12-312019-06-30
Value-8.357-9.543.115-5.023
Percentage of OperatingIncomeLoss9.016.69.93.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-3.4-3.00.5-0.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments hp:InternationalSolutionsSegment0.00.00.00.0

us-gaap:OperatingSegments, hp:NorthAmericaSolutions


Operating
Period End2020-12-312020-06-302019-12-312019-06-30
Value-72.928-25.15752-147.015
Percentage of OperatingIncomeLoss78.243.7166.287.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-29.8-8.08.5-21.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments hp:NorthAmericaSolutions0.00.00.00.0

us-gaap:OperatingSegments, hp:OffshoreGulfofMexico


Operating
Period End2020-12-312020-06-302019-12-312019-06-30
Value2.7423.0136.3285.078
Percentage of OperatingIncomeLoss-2.9-5.220.2-3.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.11.01.00.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments hp:OffshoreGulfofMexico0.00.00.00.0

us-gaap:OperatingSegments, us-gaap:AllOtherSegments


Operating
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value4.1110.6994.3890.376-1.2371.387-0.7311.1641.554
Percentage of OperatingIncomeLoss-4.4-0.9-7.6-0.1-3.93.60.41.22.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.70.31.40.1-0.20.2-0.10.20.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:AllOtherSegments0.00.00.00.00.00.0-22.90.00.0

Other Nonoperating Income Expense

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:OtherNonoperatingIncomeExpense


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value-1480000.0-1673000.0-2914000.0-398000.0-399000.0-545000.0-1599000.017000.0541000.049000.028000.0-121000.0530000.02125000.0-911000.0174000.0387000.0-1891000.0534000.0653000.0-261000.0-989000.0-281000.055000.0314000.0-605000.0346000.0-32000.0-345000.03186000.0-1214000.0103000.0-2084000.0-34000.0309000.0-42000.021000.0-1161000.0-190000.0232000.0166000.01534000.0215000.023000.015000.0
Percentage of OtherNonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.6-0.8-0.9-0.1-0.1-0.1-0.20.00.10.00.0-0.00.10.4-0.20.00.1-0.60.10.1-0.1-0.2-0.00.00.0-0.10.0-0.0-0.00.4-0.10.0-0.2-0.00.0-0.00.0-0.2-0.00.00.00.30.00.00.0

Premiums Earned Net

us-gaap:PremiumsEarnedNet us-gaap:ConsolidationItems

us-gaap:PremiumsEarnedNet

srt:ConsolidationEliminations


Premiums
Period End2020-12-312020-06-302020-03-312019-12-31
Value7.110107.7
Percentage of PremiumsEarnedNet100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.93.31.71.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:ConsolidationEliminations0.00.00.00.0

Research And Development Expense Excluding Acquired In Process Cost

us-gaap:ResearchAndDevelopmentExpenseExcludingAcquiredInProcessCost

us-gaap:ResearchAndDevelopmentExpenseExcludingAcquiredInProcessCost


Research
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value5.5834.9153.6386.2146.8786.127.0667.2627.0195.0185.4794.4363.2343.4623.0582.7192.8082.3282.7072.3152.9193.763.3294.8574.1584.1593.8643.6254.2573.8134.3733.6963.3534.6824.2993.833.2494.2554.3993.643.473.8513.2543.3421.815
Percentage of ResearchAndDevelopmentExpenseExcludingAcquiredInProcessCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.32.41.21.01.10.91.01.00.90.70.80.80.60.70.60.70.80.70.70.50.60.70.50.60.40.40.40.40.50.40.50.40.40.60.50.50.40.60.70.60.60.70.70.80.5

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


Revenue
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value2442083146306116496877207406966485775645324984053683313664384875666598831056985952893889864840838844829819769732700644604594558483436396
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService

hp:NotificationFee


Revenue
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value-0.10.92.20.20.80.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.00.30.30.00.10.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.00.30.30.00.10.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax hp:NotificationFee100.0100.0100.0100.0100.0100.0

Revenues

us-gaap:Revenues

us-gaap:Revenues


Revenues
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value2462083176336146496877207406966485775645324984053683313664384875666598831056985952893889864840838844829819769732700644604594558483436396
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.7100.0100.9100.5100.5100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues us-gaap:ConsolidationItems

us-gaap:IntersegmentElimination


Revenuesus-gaap:
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value-7.122-7.974-10.384-13.061-10.4390.00.0-2.046-0.8161.409-0.902-0.287-0.220.638-0.222-0.208-0.208-0.22-0.206-0.21-0.219-0.22-0.204-0.22-0.222-0.221-0.215-0.211-0.22-0.215-0.214-0.214-0.215
Percentage of Revenues-2.9-3.8-3.3-2.1-1.70.00.0-0.3-0.10.2-0.1-0.0-0.00.1-0.0-0.1-0.1-0.1-0.1-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-2.9-3.8-3.3-2.1-1.70.00.0-0.3-0.10.2-0.1-0.0-0.00.1-0.0-0.1-0.1-0.1-0.1-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:IntersegmentElimination0.00.00.00.00.00.0-0.00.00.0-174.8100.0100.0100.0-284.8100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments


Revenuesus-gaap:
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value2462083176336146496877207406966485775645314984053683313664384885666598831056985952893889864840838844
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.099.9100.0100.1100.1100.1100.1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.7100.0100.9100.5100.5100.0100.0100.0100.0100.0100.0100.0100.099.9100.0100.1100.1100.1100.1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments0.00.00.00.00.00.0100.00.00.00.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Revenues us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:IntersegmentElimination, us-gaap:AllOtherSegments


Revenuesus-gaap:
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value-7.12265-10.384107.740.00.00.2320.234-0.7750.3030.2520.22-0.6380.2220.2080.2080.220.2060.210.2190.220.2040.220.2221.513-0.215-0.211-0.22-0.215-0.214-0.214-0.215
Percentage of Revenues-2.931.6-3.31.71.30.00.00.00.0-0.10.00.00.0-0.10.00.10.10.10.10.00.00.00.00.00.00.2-0.0-0.0-0.0-0.0-0.0-0.0-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-2.931.6-3.31.71.30.00.00.00.0-0.10.00.00.0-0.10.00.10.10.10.10.00.00.00.00.00.00.2-0.0-0.0-0.0-0.0-0.0-0.0-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:IntersegmentElimination us-gaap:AllOtherSegments0.00.00.00.00.00.00.00.00.0-308.8100.0100.0100.0-284.8100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, hp:InternationalSolutionsSegment


Revenuesus-gaap:
Period End2020-12-312020-06-302019-12-312019-06-30
Value10224646
Percentage of Revenues4.37.17.66.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.37.17.66.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments hp:InternationalSolutionsSegment0.00.00.00.0

us-gaap:OperatingSegments, hp:NorthAmericaSolutions


Revenuesus-gaap:
Period End2020-12-312020-06-302019-12-312019-06-30
Value201254524600
Percentage of Revenues82.080.285.487.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax82.580.985.887.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments hp:NorthAmericaSolutions0.00.00.00.0

us-gaap:OperatingSegments, hp:OffshoreGulfofMexico


Revenuesus-gaap:
Period End2020-12-312020-06-302019-12-312019-06-30
Value32374037
Percentage of Revenues13.111.86.55.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.211.96.65.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments hp:OffshoreGulfofMexico0.00.00.00.0

us-gaap:OperatingSegments, us-gaap:AllOtherSegments


Revenuesus-gaap:
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value8.718101313103.2913.1863.2153.243.1493.6313.0133.018
Percentage of Revenues3.55.14.22.21.80.50.50.40.40.50.60.50.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.65.14.22.21.80.50.50.40.40.50.60.50.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:AllOtherSegments0.00.00.00.00.00.0100.00.00.00.0100.00.00.0

us-gaap:Revenues us-gaap:StatementBusinessSegments

hp:InternationalSolutionsSegment


Revenuesus-gaap:
Period End2020-12-312020-06-302019-12-312019-06-30
Value10224646
Percentage of Revenues4.37.17.66.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.37.17.66.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax hp:InternationalSolutionsSegment0.00.00.00.0

hp:NorthAmericaSolutions


Revenuesus-gaap:
Period End2020-12-312020-06-302019-12-312019-06-30
Value201254524600
Percentage of Revenues82.080.285.487.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax82.580.985.887.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax hp:NorthAmericaSolutions0.00.00.00.0

hp:OffshoreGulfofMexico


Revenuesus-gaap:
Period End2020-12-312020-06-302019-12-312019-06-30
Value32374037
Percentage of Revenues13.111.86.55.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.211.96.65.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax hp:OffshoreGulfofMexico0.00.00.00.0

us-gaap:AllOtherSegments


Revenuesus-gaap:
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-03-312017-12-31
Value1.5962.6462.9593.3493.2593.2913.1863.4473.4743.2653.238
Percentage of Revenues0.61.30.90.50.50.50.50.50.50.60.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.71.30.90.50.50.50.50.50.50.60.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AllOtherSegments0.00.00.00.00.00.099.70.00.00.00.0

us-gaap:Revenues us-gaap:StatementGeographical

country:AE


Revenuesus-gaap:
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.999.8598.4036.280.1730.00.00.0
Percentage of Revenues0.44.72.61.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.44.72.71.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax country:AE0.00.00.00.00.00.00.00.0

country:AR


Revenuesus-gaap:
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value1.5536.887.231294042404141415049484243234841333549505439252826262623181713
Percentage of Revenues0.63.32.34.76.66.56.05.75.65.97.78.68.78.08.75.713.012.49.18.110.28.88.34.52.42.92.83.03.02.72.32.11.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.63.32.34.76.66.56.05.75.65.97.78.68.78.08.75.713.012.49.18.110.28.88.34.52.42.92.83.03.02.72.32.11.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax country:AR0.00.00.00.00.00.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

country:BH


Revenuesus-gaap:
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value7.5497.1566.43104.6844.6191.8552.5262.528
Percentage of Revenues3.13.42.01.60.80.70.30.40.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.13.42.01.60.80.70.30.40.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax country:BH0.00.00.00.00.00.00.00.00.0

country:CO


Revenuesus-gaap:
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value0.4290.1010.4134.9050.9961.6823.4517.1981715100.237119.9759.3568.8529.3715.3123.8314.6026.7439.8851822232016212625222427
Percentage of Revenues0.20.00.10.80.20.30.51.02.42.31.60.02.11.91.92.22.51.61.01.11.41.72.72.62.22.11.82.43.03.02.72.93.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.20.00.10.80.20.30.51.02.42.31.60.02.11.91.92.22.51.61.01.11.41.72.72.62.22.11.82.43.03.02.72.93.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax country:CO0.00.00.00.00.00.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

country:US


Revenuesus-gaap:
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value235183294581566600641669674637585524500477443370300273318385409468547778956884864800788761750742756
Percentage of Revenues95.688.292.791.892.292.593.292.991.091.490.290.888.889.689.091.481.582.486.888.183.982.782.988.290.589.790.889.688.788.189.388.689.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax96.288.293.692.392.792.593.292.991.091.490.290.888.889.689.091.481.582.486.888.183.982.782.988.290.589.790.889.688.788.189.388.689.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax country:US0.00.00.00.00.00.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

hp:OtherForeign


Revenuesus-gaap:
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value0.4120.5340.5520.8691.553160.4213.1627.5662.6862.8353.0122.5042.3922.5492.6371012101117323235363426282934313830
Percentage of Revenues0.20.30.20.10.32.60.10.41.00.40.40.50.40.40.50.72.93.63.02.73.75.84.94.03.53.52.83.13.33.93.84.63.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.20.30.20.10.32.60.10.41.00.40.40.50.40.40.50.72.93.63.02.73.75.84.94.03.53.52.83.13.33.93.84.63.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax hp:OtherForeign0.00.00.00.00.00.018.50.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Selling General And Administrative Expense

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:SellingGeneralAndAdministrativeExpense


Selling
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value39324341494946435453524846
Percentage of SellingGeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax16.115.713.76.78.17.76.86.07.47.78.18.48.2

us-gaap:SellingGeneralAndAdministrativeExpense us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Selling
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value-29.001-23.899-34.49-30.772-33.256-22.66-30.143-28.27-35.975
Percentage of SellingGeneralAndAdministrativeExpense-73.8-73.3-80.0-73.3-66.8-45.5-64.7-65.0-66.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-11.8-11.5-11.0-4.9-5.4-3.5-4.4-3.9-4.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.0

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value472648294962517658415839589761446144621462656261636264396513653866776832697670257130715273357344680167216693648864106264619760125934572155185441525750034911472544654265
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Assetsus-gaap:
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value6267206455335552035554574525586186386988268881046114311981225113611029871046982512686913955971848
Percentage of Assets13.314.913.010.39.53.59.47.47.49.09.910.211.012.813.616.017.117.517.616.215.513.814.313.47.510.213.714.715.213.5
Percentage of Assets13.314.913.010.39.53.59.47.47.49.09.910.211.012.813.616.017.117.517.616.215.513.814.313.47.510.213.714.715.213.5
Percentage of Assets us-gaap:CorporateNonSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments


Assetsus-gaap:
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value409941094316464252855636534256865691565656475623566356135624549155345633575158886019615262816353628160275772552554355412
Percentage of Assets86.785.187.089.790.596.590.692.692.691.090.189.889.087.286.484.082.982.582.483.884.486.085.686.592.489.786.285.284.886.4
Percentage of Assets86.785.187.089.790.596.590.692.692.691.090.189.889.087.286.484.082.982.582.483.884.486.085.686.592.489.786.285.284.886.4
Percentage of Assets us-gaap:OperatingSegments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, hp:InternationalLandSegment


Assetsus-gaap:
Period End2020-09-302020-03-312019-12-312019-09-302018-09-302017-09-30
Value181179353217362413
Percentage of Assets3.83.56.13.75.86.4
Percentage of Assets3.83.56.13.75.86.4
Percentage of Assets us-gaap:OperatingSegments hp:InternationalLandSegment100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, hp:InternationalSolutionsSegment


Assetsus-gaap:
Period End2020-12-312020-09-302020-06-302019-09-30
Value170181188217
Percentage of Assets3.63.83.83.7
Percentage of Assets3.63.83.83.7
Percentage of Assets us-gaap:OperatingSegments hp:InternationalSolutionsSegment100.0100.0100.0100.0

us-gaap:OperatingSegments, hp:NorthAmericaSolutions


Assetsus-gaap:
Period End2020-12-312020-09-302020-06-302019-09-30
Value3749381239905284
Percentage of Assets79.378.980.490.5
Percentage of Assets79.378.980.490.5
Percentage of Assets us-gaap:OperatingSegments hp:NorthAmericaSolutions100.0100.0100.0100.0

us-gaap:OperatingSegments, hp:OffshoreGulfofMexico


Assetsus-gaap:
Period End2020-12-312020-09-302020-06-302019-09-30
Value9893104102
Percentage of Assets2.11.92.11.8
Percentage of Assets2.11.92.11.8
Percentage of Assets us-gaap:OperatingSegments hp:OffshoreGulfofMexico100.0100.0100.0100.0

us-gaap:OperatingSegments, hp:OffshoreSegment


Assetsus-gaap:
Period End2020-09-302020-03-312019-12-312019-09-302018-09-302017-09-30
Value9311110910210599
Percentage of Assets1.92.11.91.81.71.5
Percentage of Assets1.92.11.91.81.71.5
Percentage of Assets us-gaap:OperatingSegments hp:OffshoreSegment100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, hp:U.S.LandSegment


Assetsus-gaap:
Period End2020-09-302020-03-312019-12-312019-09-302018-09-302017-09-30
Value381241584601509950074962
Percentage of Assets78.980.378.887.380.677.1
Percentage of Assets78.980.378.887.380.677.1
Percentage of Assets us-gaap:OperatingSegments hp:U.S.LandSegment100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, us-gaap:AllOtherSegments


Assetsus-gaap:
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value81223342313231302929182182182133134353636353737383940404036353232
Percentage of Assets1.70.50.70.80.50.60.50.50.50.52.92.92.92.12.10.50.50.50.50.50.50.50.50.50.60.60.60.50.50.5
Percentage of Assets1.70.50.70.80.50.60.50.50.50.52.92.92.92.12.10.50.50.50.50.50.50.50.50.50.60.60.60.50.50.5
Percentage of Assets us-gaap:OperatingSegments us-gaap:AllOtherSegments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:StatementOperatingActivitiesSegment

us-gaap:SegmentContinuingOperations


Assetsus-gaap:
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-09-30
Value4726482949625176584158395897614461446214626562616362643965136538667768316976702471217139732773366794671466866481640662616193600859265713551054335250499649034255
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.099.999.899.999.999.999.999.999.999.999.999.999.999.999.999.999.999.999.899.899.8
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.099.999.899.999.999.999.999.999.999.999.999.999.999.999.999.999.999.999.899.899.8
Percentage of Assets us-gaap:SegmentContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value472648294962517658415839589761446144621462656261636264396513653866776832697670257130715273357344680167216693648864106264619760125934572155185441525750034911472544654265
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-09-302009-09-302008-09-30
Value32243318339634613975401240954318432643824442450345904164424943474475456047014782483048975021500249214890481946884568444342954174399038343634360234453270280726832265
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets68.268.768.466.968.168.769.470.370.470.570.971.972.264.765.266.567.066.867.468.167.768.568.568.172.472.872.072.371.370.969.369.467.267.065.966.265.565.465.80.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Stockholders
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-09-302013-09-30
Value-25.731-26.188-27.082-27.603-28.119-28.635-16.085-12.072-12.296-12.521-16.785-17.122-17.43-17.77-20.006-20.371-20.737-21.103-17.638-17.952-18.265-18.578-14.292-11.631
Percentage of StockholdersEquity-0.8-0.8-0.8-0.8-0.7-0.7-0.4-0.3-0.3-0.3-0.4-0.4-0.4-0.4-0.5-0.5-0.5-0.5-0.4-0.4-0.4-0.4-0.3-0.3
Percentage of Assets-0.5-0.5-0.5-0.5-0.5-0.5-0.3-0.2-0.2-0.2-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.2-0.2
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-09-302009-09-302008-09-30
Value-25.731-26.188-27.082-27.603-28.119-28.635-16.085-12.072-12.296168.942-5.2212.0392.3-4.1012.43312-0.204-3.156-13.214-12.074-1.37736404183112113129132105205167166121158131988411238
Percentage of StockholdersEquity-0.8-0.8-0.8-0.8-0.7-0.7-0.4-0.3-0.30.40.2-0.10.00.1-0.10.10.3-0.0-0.1-0.3-0.2-0.00.70.80.81.72.32.42.83.02.54.94.24.33.34.43.83.03.04.21.7
Percentage of Assets-0.5-0.5-0.5-0.5-0.5-0.5-0.3-0.2-0.20.30.1-0.10.00.0-0.10.00.2-0.0-0.0-0.2-0.2-0.00.50.50.61.21.71.72.02.11.73.42.82.92.22.92.52.02.00.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-09-302009-09-302008-09-30
Value511521514509499510501493484500494487479487478470463448442436427420409402395383376359322288273265254236231225218210191176169
Percentage of StockholdersEquity15.915.715.214.712.612.712.211.411.211.411.110.810.511.711.310.810.49.89.49.18.98.68.18.08.07.97.87.77.16.56.46.46.46.26.46.36.36.46.86.67.5
Percentage of Assets10.810.810.49.98.58.78.58.07.98.17.97.87.57.67.37.26.96.66.36.26.05.95.65.55.85.75.65.55.04.64.44.44.34.14.24.24.24.24.50.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-09-302009-09-302008-09-30
Value1111111111111111111111111111111111111111111111111111111110101010101010101010101010
Percentage of StockholdersEquity0.30.30.30.30.30.30.30.30.30.30.30.20.20.30.30.30.20.20.20.20.20.20.20.20.20.20.20.20.20.20.30.30.30.30.30.30.30.30.40.40.5
Percentage of Assets0.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.30.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-09-302009-09-302008-09-30
Value29113010309631683666371437503979399740274103418942783855395440524178428944384536458946494745472946544525443143144208410239963783364835053355321330902954254724142082
Percentage of StockholdersEquity90.390.791.291.692.292.691.692.292.491.992.493.093.292.693.193.293.394.194.494.995.094.994.594.594.692.592.092.092.192.393.190.691.491.492.389.289.790.390.890.091.9
Percentage of Assets61.662.362.461.262.863.663.664.865.164.865.566.967.259.960.762.062.662.863.664.664.465.064.764.468.467.366.266.565.665.564.562.961.561.360.859.158.859.059.70.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStockCommon


Stockholders
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302015-09-302014-09-302013-09-30
Value-183.535-198.153-198.917-201.5-173.096-194.962-152.439-153.645-154.079-173.188-175.674-179.459-181.13-191.839-190.121-190.119-189.941-188.27-182.363-112.969-91.098
Percentage of StockholdersEquity-5.7-6.0-5.9-5.8-4.4-4.9-3.7-3.6-3.6-4.0-4.0-4.0-3.9-4.6-4.5-4.4-4.2-4.1-3.7-2.3-2.1
Percentage of Assets-3.9-4.1-4.0-3.9-3.0-3.3-2.6-2.5-2.5-2.8-2.8-2.9-2.8-3.0-2.9-2.9-2.8-2.8-2.5-1.7-1.5
Percentage of Assets us-gaap:TreasuryStockCommon0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value95296399011201154111511161048104211151133113011661235125013631445157215371460147614391501156812091277145013881391125812809319798959429991003956882803710652
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets20.219.920.021.619.819.118.917.117.017.918.118.118.319.219.220.921.623.022.020.820.720.120.521.417.819.021.721.421.720.120.715.516.515.617.118.419.119.118.017.015.915.3

Cash

us-gaap:Cash us-gaap:StatementGeographical

us-gaap:Cash

country:AR


Cashus-gaap:
Period End2020-12-31
Value23
Percentage of Cash100.0
Percentage of Assets0.5
Percentage of Assets country:AR0.0

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302008-09-30
Value373487426336355347334243228284306334383521572741825905907898848717770719251360549584581447480172241961483243473642882401736377991099677
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.910.18.66.56.16.05.74.03.74.64.95.36.08.18.811.312.413.313.012.811.910.010.59.83.75.48.29.09.17.17.82.94.11.72.76.06.67.35.95.13.91.50.00.00.00.00.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-09-30
Value422536476380394382369278262326347380428560935
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.911.19.67.36.86.66.34.54.35.25.66.16.78.713.7

Short Term Investments

us-gaap:ShortTermInvestments

us-gaap:ShortTermInvestments


Short
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value149896545575245264141444542443948454449454745
Percentage of ShortTermInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.21.81.30.91.00.90.80.40.70.70.70.70.70.70.60.70.70.60.70.60.70.6

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent

us-gaap:AccountsReceivableNetCurrent


Accounts
Period End2020-12-312020-09-302020-06-302019-09-302018-09-302017-09-302016-09-302015-09-302011-09-302011-06-302011-03-312010-12-312010-09-30
Value233150302461530398286445460444433412457
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.93.16.17.98.56.24.26.29.29.09.29.210.7

Receivables Net Current

us-gaap:ReceivablesNetCurrent

us-gaap:ReceivablesNetCurrent


Receivables
Period End2020-09-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-09-30
Value192531500495508552545565565545535477440345326375351330373449490623734705705624630621622603580620604511495460457
Percentage of ReceivablesNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.010.38.68.58.69.08.99.19.08.78.47.46.85.34.95.55.04.75.26.36.78.510.810.510.59.69.89.910.010.09.810.811.09.49.49.210.7

Inventory Net

us-gaap:InventoryNet

us-gaap:InventoryNet


Inventory
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value99104113112148149150161159158152143139137138131126124128129127128128124110106106999788868278787061585448454343
Percentage of InventoryNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.12.22.32.22.52.62.52.62.62.52.42.32.22.12.12.01.91.81.81.81.81.81.71.71.61.61.61.51.51.41.41.41.31.41.31.11.11.11.01.01.01.0

Other Assets Current

us-gaap:OtherAssetsCurrent

us-gaap:OtherAssetsCurrent


Other
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-30
Value135.0372.1518.2938.6891519168.9031112
Percentage of OtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.10.00.10.10.20.30.30.20.20.3

Prepaid Expense And Other Assets Current

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:PrepaidExpenseAndOtherAssetsCurrent


Prepaid
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-09-30
Value95898394926877636766656265555870757879567172957990816959617968504874907277497464
Percentage of PrepaidExpenseAndOtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.01.81.71.81.61.21.31.01.11.11.01.01.00.90.91.11.11.11.10.81.01.01.31.11.31.21.00.91.01.31.10.80.81.31.61.31.51.01.51.5

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


Property
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-30
Value842984868554856390229161918693779275914688828487860378997020630653414683
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets178.3175.7172.4165.4154.5156.9155.8152.6151.0147.2137.9124.2120.3117.5112.1110.2106.7109.8

us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

us-gaap:ConstructionInProgress


Property
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-09-30
Value53497071135117158189192163169
Percentage of PropertyPlantAndEquipmentGross0.60.60.80.81.51.31.72.02.11.81.9
Percentage of Assets1.11.01.41.42.32.02.73.13.12.62.6
Percentage of Assets us-gaap:ConstructionInProgress0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:MachineryAndEquipment


Property
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-09-30
Value72557313733073307739788184868636853484428197
Percentage of PropertyPlantAndEquipmentGross86.186.285.785.685.886.092.492.192.092.392.3
Percentage of Assets153.5151.4147.7141.6132.5135.0143.9140.6138.9135.8127.3
Percentage of Assets us-gaap:MachineryAndEquipment0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:PropertyPlantAndEquipmentOtherTypes


Property
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-09-30
Value465464465474463471469481478471450
Percentage of PropertyPlantAndEquipmentGross5.55.55.45.55.15.15.15.15.25.25.1
Percentage of Assets9.89.69.49.27.98.18.07.87.87.67.0
Percentage of Assets us-gaap:PropertyPlantAndEquipmentOtherTypes0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:PublicUtilitiesInventoryTubularGoods


Property
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-09-30
Value612615616615611618613
Percentage of PropertyPlantAndEquipmentGross7.37.37.27.26.86.76.7
Percentage of Assets13.012.712.411.910.510.69.9
Percentage of Assets us-gaap:PublicUtilitiesInventoryTubularGoods0.00.00.00.00.00.00.0

us-gaap:RealEstateInvestment


Property
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-09-30
Value4343727272727169696866
Percentage of PropertyPlantAndEquipmentGross0.50.50.80.80.80.80.80.70.70.80.7
Percentage of Assets0.90.91.51.41.21.21.21.11.11.11.0
Percentage of Assets us-gaap:RealEstateInvestment0.00.00.00.00.00.00.00.00.00.00.0

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-30
Value487748394800472346104659460244904375428838813342303627112344195416631408
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets103.2100.296.791.278.979.878.073.171.269.060.348.942.540.337.434.233.333.0

Amortization Of Intangible Assets

us-gaap:AmortizationOfIntangibleAssets

us-gaap:AmortizationOfIntangibleAssets


Amortization
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value1800000.01700000.01800000.01800000.01900000.01600000.01400000.01400000.01400000.01500000.01400000.01700000.0800000.0
Percentage of AmortizationOfIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.0

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302009-09-30
Value3552364637543840441245024583488649004857488348984950500150625061510251445306544655305567563055725400518849434801469346764613456044914351417039753832367735533420333632753194
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets75.175.575.774.275.577.177.779.579.878.277.978.277.877.777.777.476.475.376.177.577.677.876.875.979.477.273.974.073.274.674.475.975.776.175.673.172.973.572.472.474.776.80.0

us-gaap:PropertyPlantAndEquipmentNet us-gaap:StatementBusinessSegments

hp:OffshoreGulfofMexico


Property
Period End2020-12-31
Value2.8
Percentage of PropertyPlantAndEquipmentNet0.1
Percentage of Assets0.1
Percentage of Assets hp:OffshoreGulfofMexico0.0

us-gaap:PropertyPlantAndEquipmentNet us-gaap:StatementGeographical

country:AR


Property
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-302009-09-30
Value491321331551832131448381789199
Percentage of PropertyPlantAndEquipmentNet1.42.92.83.13.63.82.81.81.92.12.83.1
Percentage of Assets1.02.32.12.42.73.02.21.31.41.62.10.0
Percentage of Assets country:AR0.00.00.00.00.00.00.00.00.00.00.00.0

country:CO


Property
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-302009-09-30
Value21617481911031078184675962
Percentage of PropertyPlantAndEquipmentNet0.61.41.51.61.81.92.11.71.91.81.82.0
Percentage of Assets0.51.11.21.31.31.41.61.31.51.31.40.0
Percentage of Assets country:CO0.00.00.00.00.00.00.00.00.00.00.00.0

country:US


Property
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-302009-09-30
Value356242694591468648045149475343454039342329732879
Percentage of PropertyPlantAndEquipmentNet97.794.894.593.793.492.591.692.992.893.190.890.1
Percentage of Assets73.873.173.972.870.372.070.769.470.668.469.70.0
Percentage of Assets country:US0.00.00.00.00.00.00.00.00.00.00.00.0

hp:OtherForeign


Property
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-302009-09-30
Value12384754647111210110779122126
Percentage of PropertyPlantAndEquipmentNet0.30.91.01.11.31.32.22.22.52.23.74.0
Percentage of Assets0.30.70.80.90.91.01.71.61.91.62.90.0
Percentage of Assets hp:OtherForeign0.00.00.00.00.00.00.00.00.00.00.00.0

Long Term Investments

us-gaap:LongTermInvestments

us-gaap:LongTermInvestments


Long
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value3431252035314860549892738384768810584998385104159164165236279284312316287501441451382444399347453480397320
Percentage of LongTermInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.70.70.50.40.60.50.81.00.91.61.51.21.31.31.21.41.61.21.41.21.21.52.22.22.43.54.24.44.95.04.68.37.47.96.98.27.67.09.210.28.97.5

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-09-302015-09-30
Value4545454582826767676469696951514.7184.718
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.00.90.90.91.41.41.21.11.11.01.11.11.10.80.80.10.1

Intangible Assets Net Excluding Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill


Intangible
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-09-30
Value7981828486866970717375777850510.919
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.71.71.71.61.51.51.21.11.21.21.21.21.20.80.80.0

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:FiniteLivedIntangibleAssetsNet


Finite
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-09-30
Value7981828486866970717349
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.71.71.71.61.51.51.21.11.21.20.8

us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CustomerRelationships


Finite
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value1.5331.7331.9332.1332.3332.5332.7332.9333.1333.333
Percentage of FiniteLivedIntangibleAssetsNet1.92.12.32.52.72.94.04.24.44.6
Percentage of Assets0.00.00.00.00.00.00.00.00.10.1
Percentage of Assets us-gaap:CustomerRelationships0.00.00.00.00.00.00.00.00.00.0

us-gaap:DevelopedTechnologyRights


Finite
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-09-30
Value7172747577786162636449
Percentage of FiniteLivedIntangibleAssetsNet90.189.989.889.689.590.988.488.388.288.0100.0
Percentage of Assets1.51.51.51.51.31.41.01.01.01.00.8
Percentage of Assets us-gaap:DevelopedTechnologyRights0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:IntellectualProperty


Finite
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value1.3691.3971.4251.4531.4810.0
Percentage of FiniteLivedIntangibleAssetsNet1.71.71.71.71.70.0
Percentage of Assets0.00.00.00.00.00.0
Percentage of Assets us-gaap:IntellectualProperty0.00.00.00.00.00.0

us-gaap:TradeNames


Finite
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value4.9445.0235.1025.1825.265.3435.2495.325.3915.463
Percentage of FiniteLivedIntangibleAssetsNet6.26.26.26.16.16.27.67.57.57.5
Percentage of Assets0.10.10.10.10.10.10.10.10.10.1
Percentage of Assets us-gaap:TradeNames0.00.00.00.00.00.00.00.00.00.0

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value42444748520.0
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.00.0
Percentage of Assets0.90.91.00.90.90.0

us-gaap:OperatingLeaseRightOfUseAsset us-gaap:PropertyPlantAndEquipmentByType

us-gaap:Equipment


Operating
Period End2020-09-302020-06-302020-03-312019-12-312019-10-01
Value1.3942.6062.9453.2983.652
Percentage of OperatingLeaseRightOfUseAsset3.15.56.06.30.0
Percentage of Assets0.00.10.10.10.0
Percentage of Assets us-gaap:Equipment0.00.00.00.00.0

us-gaap:LandAndBuilding


Operating
Period End2020-09-302020-06-302020-03-312019-12-312019-10-01
Value4244454852
Percentage of OperatingLeaseRightOfUseAsset95.293.492.693.30.0
Percentage of Assets0.90.90.90.80.0
Percentage of Assets us-gaap:LandAndBuilding0.00.00.00.00.0

us-gaap:PropertyPlantAndEquipmentOtherTypes


Operating
Period End2020-09-302020-06-302020-03-312019-12-312019-10-01
Value0.7410.5150.6620.2010.231
Percentage of OperatingLeaseRightOfUseAsset1.71.11.40.40.0
Percentage of Assets0.00.00.00.00.0
Percentage of Assets us-gaap:PropertyPlantAndEquipmentOtherTypes0.00.00.00.00.0

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value20171617182012106.6535.2551112131720242429323537414338251919131314161822232222222221202016
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.40.30.30.30.40.20.20.10.10.20.20.20.30.30.40.40.40.50.50.50.60.60.50.40.30.30.20.20.20.30.30.40.40.40.40.40.50.40.40.50.4

Equity Securities Fv Ni

us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:EquitySecuritiesFvNi

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring


Equity
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value107.2748.5976.3071815324539
Percentage of EquitySecuritiesFvNi100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.20.20.10.30.30.50.70.6
Percentage of Assets us-gaap:FairValueInputsLevel1 us-gaap:FairValueMeasurementsRecurring0.00.00.00.00.00.00.00.00.0

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Equity
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value0.3433.9920.3430.3430.2930.2930.2910.2660.123
Percentage of EquitySecuritiesFvNi3.454.94.05.41.61.80.90.60.3
Percentage of Assets0.00.10.00.00.00.00.00.00.0
Percentage of Assets us-gaap:FairValueInputsLevel2 us-gaap:FairValueMeasurementsRecurring0.00.00.00.00.00.00.00.00.0

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring


Equity
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value1.50.50.00.00.00.00.0
Percentage of EquitySecuritiesFvNi14.76.90.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.0
Percentage of Assets us-gaap:FairValueInputsLevel3 us-gaap:FairValueMeasurementsRecurring0.00.00.00.00.00.00.0

us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Equity
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value12118.946.651916324539
Percentage of EquitySecuritiesFvNi118.1161.8104.0105.4101.6101.8100.9100.6100.3
Percentage of Assets0.30.20.20.10.30.30.60.70.6
Percentage of Assets us-gaap:FairValueMeasurementsRecurring0.00.00.00.00.00.00.00.00.0

Accounts Payable Current

us-gaap:AccountsPayableCurrent

us-gaap:AccountsPayableCurrent


Accounts
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value4636361441221231341301411321431231261351371271119592919611012817216818213913513014413494107159889812210374715880
Percentage of AccountsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.00.80.72.82.12.12.32.12.32.12.32.02.02.12.11.91.71.41.31.31.41.51.82.32.52.72.12.12.02.32.21.61.82.81.61.82.32.11.51.51.31.9

Accrued Liabilities Current

us-gaap:AccruedLiabilitiesCurrent

us-gaap:AccruedLiabilitiesCurrent


Accrued
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value154155178232296287256242244244237217228208196174174234194240269198175176234282244184229189254166274176204167186192182138147144
Percentage of AccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.33.23.64.55.14.94.34.04.03.93.83.53.63.23.02.72.63.42.83.43.82.82.42.43.54.23.72.83.63.04.12.84.63.13.73.13.53.93.72.93.33.4

Contract With Customer Liability Current

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:ContractWithCustomerLiabilityCurrent


Contract
Period End2020-09-302019-09-302018-09-30
Value9.2662520
Percentage of ContractWithCustomerLiabilityCurrent100.0100.0100.0
Percentage of Assets0.20.40.3

Dividends Payable Current

us-gaap:DividendsPayableCurrent

us-gaap:DividendsPayableCurrent


Dividends
Period End2020-12-312020-09-302020-06-302019-09-30
Value27272777
Percentage of DividendsPayableCurrent100.0100.0100.0100.0
Percentage of Assets0.60.60.51.3

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value228219242377419410390373385377381340355344333301286330326371408351346391447507502438478452432304427381413385428416261215211232
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.84.54.97.37.27.06.66.16.36.16.15.45.65.35.14.64.34.84.75.35.74.94.75.36.67.67.56.87.57.27.05.17.26.77.57.18.28.35.34.64.75.5

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityCurrent


Operating
Period End2020-09-302020-06-302020-03-312019-12-312019-10-01
Value1111131516
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0100.0
Percentage of Assets0.20.20.30.30.0

Other Accrued Liabilities Current

us-gaap:OtherAccruedLiabilitiesCurrent

us-gaap:OtherAccruedLiabilitiesCurrent


Other
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-30
Value9.368.5998.92134.7232018192318
Percentage of OtherAccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.10.10.20.10.30.30.30.30.50.4

Liabilities Noncurrent

us-gaap:LiabilitiesNoncurrent

us-gaap:LiabilitiesNoncurrent


Liabilities
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value127312911324133814461417141114521432145414411418141519311930188919151940194818711891190319671950143213231371136113631368146915331516150414701453138313171428138212901225
Percentage of LiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets26.926.826.725.924.824.323.923.623.323.423.022.722.330.029.628.928.728.427.926.626.526.626.826.621.119.720.521.021.321.823.725.525.626.326.626.726.326.329.129.328.928.7

Long Term Debt

us-gaap:LongTermDebt

us-gaap:LongTermDebt


Long
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-09-302016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-09-30
Value4814804804794794794914914904934924915325325315315715728080195195195195235235235235350350350350350360
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets10.210.09.79.38.28.28.38.08.07.97.77.27.67.67.57.47.87.81.21.22.93.03.03.13.83.94.04.16.36.46.77.07.18.4

us-gaap:LongTermDebt us-gaap:DebtInstrument

hp:UnsecuredSeniorNotesIssued2015


Long
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-12-202018-09-302017-09-30
Value48148048047947947949149149012493492
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0
Percentage of Assets10.210.09.79.38.28.28.38.08.00.07.97.7
Percentage of Assets hp:UnsecuredSeniorNotesIssued20150.00.00.00.00.00.00.00.00.00.00.00.0

Long Term Debt Noncurrent

us-gaap:LongTermDebtNoncurrent

us-gaap:LongTermDebtNoncurrent


Long
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value481480480479479479491491490493493493493492492492492491493492492492532532404080808080195195195195235235235235350350350360
Percentage of LongTermDebtNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets10.210.09.79.38.28.28.38.08.07.97.97.97.87.77.67.57.47.27.17.06.96.97.37.30.60.61.21.21.21.33.13.23.33.44.34.34.54.77.17.47.88.4

us-gaap:LongTermDebtNoncurrent us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure


Long
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-30
Value481480480479479479491491490494493493493492492492491
Percentage of LongTermDebtNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets10.210.09.79.38.28.28.38.08.07.97.97.97.87.77.67.57.2
Percentage of Assets us-gaap:CarryingReportedAmountFairValueDisclosure0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Deferred Income Tax Liabilities Net

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:DeferredIncomeTaxLiabilitiesNet


Deferred
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302015-09-302014-09-30
Value63565068570079880682786185313711271
Percentage of DeferredIncomeTaxLiabilitiesNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets13.413.513.813.513.713.814.014.013.719.218.9

Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent


Pension
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-30
Value30281117189.3132.8895.717253740
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.60.50.20.30.30.10.00.10.40.81.0

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value15114714314215311578848493999387101108838610293959711110593716457576065808592989910297104911029991
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.23.02.92.82.62.01.31.41.41.51.61.51.41.61.71.31.31.51.31.41.41.61.41.31.01.00.90.90.91.01.31.41.61.71.81.91.92.11.92.22.22.1

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent


Operating
Period End2020-09-302020-06-302020-03-312019-12-312019-10-01
Value3335353639
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0
Percentage of Assets0.70.70.70.60.0

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2020-09-30
Value8133000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0
Percentage of Assets0.2

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2020-09-30
Value7466000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0
Percentage of Assets0.2

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2020-09-30
Value7018000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0
Percentage of Assets0.1

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-09-30
Value3231000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0
Percentage of Assets0.1

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-09-30
Value638000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0
Percentage of Assets0.0

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2020-09-302020-06-302020-03-312019-12-312019-10-01
Value4547485256
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0
Percentage of Assets0.91.00.90.90.0

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2020-09-302020-06-302020-03-312019-12-312019-10-01
Value3854535762
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0100.0100.0100.0100.0
Percentage of Assets0.81.11.01.00.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-09-302009-09-302008-09-30
Value32243318339634613975401240954318432643824442450345904164424943474475456047014782483048975021500249214890481946884568444342954174399038343634360234453270280726832265
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets68.268.768.466.968.168.769.470.370.470.570.971.972.264.765.266.567.066.867.468.167.768.568.568.172.472.872.072.371.370.969.369.467.267.065.966.265.565.465.80.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Stockholders
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-09-302013-09-30
Value-25.731-26.188-27.082-27.603-28.119-28.635-16.085-12.072-12.296-12.521-16.785-17.122-17.43-17.77-20.006-20.371-20.737-21.103-17.638-17.952-18.265-18.578-14.292-11.631
Percentage of StockholdersEquity-0.8-0.8-0.8-0.8-0.7-0.7-0.4-0.3-0.3-0.3-0.4-0.4-0.4-0.4-0.5-0.5-0.5-0.5-0.4-0.4-0.4-0.4-0.3-0.3
Percentage of Assets-0.5-0.5-0.5-0.5-0.5-0.5-0.3-0.2-0.2-0.2-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.2-0.2
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-09-302009-09-302008-09-30
Value-25.731-26.188-27.082-27.603-28.119-28.635-16.085-12.072-12.296168.942-5.2212.0392.3-4.1012.43312-0.204-3.156-13.214-12.074-1.37736404183112113129132105205167166121158131988411238
Percentage of StockholdersEquity-0.8-0.8-0.8-0.8-0.7-0.7-0.4-0.3-0.30.40.2-0.10.00.1-0.10.10.3-0.0-0.1-0.3-0.2-0.00.70.80.81.72.32.42.83.02.54.94.24.33.34.43.83.03.04.21.7
Percentage of Assets-0.5-0.5-0.5-0.5-0.5-0.5-0.3-0.2-0.20.30.1-0.10.00.0-0.10.00.2-0.0-0.0-0.2-0.2-0.00.50.50.61.21.71.72.02.11.73.42.82.92.22.92.52.02.00.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-09-302009-09-302008-09-30
Value511521514509499510501493484500494487479487478470463448442436427420409402395383376359322288273265254236231225218210191176169
Percentage of StockholdersEquity15.915.715.214.712.612.712.211.411.211.411.110.810.511.711.310.810.49.89.49.18.98.68.18.08.07.97.87.77.16.56.46.46.46.26.46.36.36.46.86.67.5
Percentage of Assets10.810.810.49.98.58.78.58.07.98.17.97.87.57.67.37.26.96.66.36.26.05.95.65.55.85.75.65.55.04.64.44.44.34.14.24.24.24.24.50.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-09-302009-09-302008-09-30
Value1111111111111111111111111111111111111111111111111111111110101010101010101010101010
Percentage of StockholdersEquity0.30.30.30.30.30.30.30.30.30.30.30.20.20.30.30.30.20.20.20.20.20.20.20.20.20.20.20.20.20.20.30.30.30.30.30.30.30.30.40.40.5
Percentage of Assets0.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.30.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-09-302009-09-302008-09-30
Value29113010309631683666371437503979399740274103418942783855395440524178428944384536458946494745472946544525443143144208410239963783364835053355321330902954254724142082
Percentage of StockholdersEquity90.390.791.291.692.292.691.692.292.491.992.493.093.292.693.193.293.394.194.494.995.094.994.594.594.692.592.092.092.192.393.190.691.491.492.389.289.790.390.890.091.9
Percentage of Assets61.662.362.461.262.863.663.664.865.164.865.566.967.259.960.762.062.662.863.664.664.465.064.764.468.467.366.266.565.665.564.562.961.561.360.859.158.859.059.70.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStockCommon


Stockholders
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302015-09-302014-09-302013-09-30
Value-183.535-198.153-198.917-201.5-173.096-194.962-152.439-153.645-154.079-173.188-175.674-179.459-181.13-191.839-190.121-190.119-189.941-188.27-182.363-112.969-91.098
Percentage of StockholdersEquity-5.7-6.0-5.9-5.8-4.4-4.9-3.7-3.6-3.6-4.0-4.0-4.0-3.9-4.6-4.5-4.4-4.2-4.1-3.7-2.3-2.1
Percentage of Assets-3.9-4.1-4.0-3.9-3.0-3.3-2.6-2.5-2.5-2.8-2.8-2.9-2.8-3.0-2.9-2.9-2.8-2.8-2.5-1.7-1.5
Percentage of Assets us-gaap:TreasuryStockCommon0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value111111111111111111111111111111111111111111111111111111111010101010101010101010101010
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.3

Additional Paid In Capital Common Stock

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:AdditionalPaidInCapitalCommonStock


Additional
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value511521514509499510501493484500494487479487478470463448442436427420409402395383376359322288273265254236231225218210205200193191
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets10.810.810.49.98.58.78.58.07.98.17.97.87.57.67.37.26.96.66.36.26.05.95.65.55.85.75.65.55.04.64.44.44.34.14.24.24.24.24.24.24.34.5

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value291130103096316836663714375039793997402741034189427838553954405241784289443845364589464947454729465445254431431442084102399637833648350533553213309029542840273826452547
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets61.662.362.461.262.863.663.664.865.164.865.566.967.259.960.762.062.662.863.664.664.465.064.764.468.467.366.266.565.665.564.562.961.561.360.859.158.859.057.857.959.259.7

us-gaap:RetainedEarningsAccumulatedDeficit us-gaap:CumulativeEffectPeriodOfAdoption

srt:CumulativeEffectPeriodOfAdoptionAdjustment


Retained
Period End2020-10-01
Value-1.3
Percentage of RetainedEarningsAccumulatedDeficit0.0
Percentage of Assets0.0
Percentage of Assets srt:CumulativeEffectPeriodOfAdoptionAdjustment0.0

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-25.731-26.188-27.082-27.603-28.119-28.635-16.085-12.072-12.296168.942-5.2212.0392.3-4.1012.43312-0.204-3.156-13.214-12.074-1.377364041831121131291321052051671661211581319816818413284
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-0.5-0.5-0.5-0.5-0.5-0.5-0.3-0.2-0.20.30.1-0.10.00.0-0.10.00.2-0.0-0.0-0.2-0.2-0.00.50.50.61.21.71.72.02.11.73.42.82.92.22.92.52.03.43.93.02.0

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Accumulated
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-09-30
Value-25.731-26.188-27.082-27.603-28.119-28.635-16.085-12.072-12.296-12.521-16.785-17.122-17.43-17.77-20.006-20.371-21.103-18.578-13.702-13.899-14.096-14.292-11.194-11.339-11.484-11.631-23.044
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0-75.7-187.7327.9-854.8-772.6487.8-837.310344.61349.2-37.1-34.7-34.3-17.2-10.0-10.0-8.9-8.8-13.8
Percentage of Assets-0.5-0.5-0.5-0.5-0.5-0.5-0.3-0.2-0.2-0.2-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.4
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Accumulated
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302015-09-30
Value-25.731-26.188-27.082-27.603-28.119-28.635-16.085-12.072-12.296168.942-5.2212.0392.3-4.1012.433-0.204-1.377
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-0.5-0.5-0.5-0.5-0.5-0.5-0.3-0.2-0.20.30.1-0.10.00.0-0.10.0-0.0-0.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue


Adjustments
Period End2020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value7.4517.62410108.8258.8789.4317.1588.2157.9268.4597.0876.9366.7686.5785.9014.7225.6746.0667.9216.0756.0416.0976.9825.6148.2855.7947.015.85.7455.6986.0284.7784.5424.8363.9222.9872.972.9573.187
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value7.4517.62410108.8258.8789.4317.1588.2157.9268.4597.0876.9366.7686.5785.9014.7225.6746.0667.9216.0756.0416.0976.9825.6148.2855.7947.015.85.7455.6986.0284.7784.5424.8363.9222.9872.972.9573.187
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value-19.6049221312011119625019920918616112472121897570138122184308271334422389320257235304235267152341387174202236281244213238129107103122
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-8.044.567.919.218.330.336.427.728.326.724.921.612.822.718.018.719.241.733.542.163.247.950.847.936.932.627.126.334.327.231.818.240.546.721.226.332.340.138.035.340.123.122.223.630.9

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value-65.203-0.861-40.074-23.915-23.035-48.675-81.368-105.863-186.73-130.178-116.158-97.182-128.844-96.41-182.835-83.7-82.043-23.197-40.063-60.229-110.73-202.536-205.901-385.33-362.821-321.579-231.244-187.364-132.73-184.21954-210.292-193.928-307.881-275.247-220.37-246.788-195.431-198.877-156.033-117.196-107.802-75.171-64.003-62.284
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-26.6-0.4-12.7-3.8-3.8-7.5-11.8-14.7-25.2-18.7-17.9-16.8-22.8-18.1-36.7-20.7-22.3-7.0-10.9-13.7-22.7-35.8-31.2-43.6-34.3-32.6-24.3-21.0-14.9-21.36.5-25.1-23.0-37.1-33.6-28.6-33.7-27.9-30.9-25.8-19.7-19.3-15.6-14.7-15.7

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-06-302012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value-29.287-31.244-77.532-111.042-77.402-133.84-77.986-78.156-86.347-78.003-73.607-76.497-81.082-76.085-75.899-76.138-68.293-116.461-73.811-74.309-78.62-121.61-77.263431-138.063-61.691-2.943-132.244-74.428-5.288-6.237-9.4971.5619.802-10.655-36.146-54.585-49.12-46.299
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-12.0-15.0-24.7-17.6-12.7-20.6-11.3-10.8-11.7-11.2-11.3-13.2-14.4-14.3-15.2-18.8-18.5-35.1-20.1-17.0-16.1-21.5-11.748.9-13.1-6.5-0.3-15.9-9.1-0.7-0.9-1.40.21.6-1.8-6.5-11.3-11.3-11.7

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value-114.0946096-14.09611139015-63.595-21.757-32.113-48.633-131.821
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-46.629.130.5-2.21.92.113.22.2-8.6-3.1-4.9-8.4-23.4

Deferred Income Tax Expense Benefit

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:DeferredIncomeTaxExpenseBenefit


Deferred
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value-15.016-35.189-15.488-98.912-7.966-19.051-34.337.721.107117.882-2.629-503.7443.6876.24-16.965-17.073-17.79873-15.29220-15.284124.637129-1.54114111.94313-4.3058.4891152444257326053426813158.235
Percentage of DeferredIncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Depreciation Depletion And Amortization

us-gaap:DepreciationDepletionAndAmortization

us-gaap:DepreciationDepletionAndAmortization


Depreciation
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value1061091101321301341431431411501441451431531451521331761381411421751441491371501281231201181171121061159590868779767373656360
Percentage of DepreciationDepletionAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Accounts Payable

us-gaap:IncreaseDecreaseInAccountsPayable

us-gaap:IncreaseDecreaseInAccountsPayable


Increase
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value9.7386.756-37.93423-1.58-9.4232.915-10.6518.012-10.97419-4.122-8.997-1.9861015152.736-0.069-3.02-10.554-2.685-32.5855.493-4.37310-5.9030.364-25.701107.17-15.684-54.31668-1.646-30.63618312.9087.296-24.58323-1.1312-17.755
Percentage of IncreaseDecreaseInAccountsPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Accounts Receivable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInAccountsReceivable


Increase
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value32-111.527-226.997343.269-7.321-49.366.058-19.7-2.306258.01353349315-46.0482417-43.139-72.083-34.846-133.519-110.62329-0.57981-6.3268.82-0.8911926-40.31416931534161120-45.259122542025
Percentage of IncreaseDecreaseInAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Inventories

us-gaap:IncreaseDecreaseInInventories

us-gaap:IncreaseDecreaseInInventories


Increase
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value-4.612-8.8540.2772.345-0.965-0.348-4.7411.411.8587.5228.9324.1111.862-1.1994.5335.5521.721-2.288-0.7642.407-1.2990.5123.948134.532-0.0096.4212.4948.4692.283.8614.1751.9736.1589.0092.5034.54.8013.7632.1560.285-0.1032.768-0.4521.645
Percentage of IncreaseDecreaseInInventories100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value-19.6049221312011119625019920918616112472121897570138122184308271334422389320257235304235267152341387174202236281244213238129107103122
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-8.044.567.919.218.330.336.427.728.326.724.921.612.822.718.018.719.241.733.542.163.247.950.847.936.932.627.126.334.327.231.818.240.546.721.226.332.340.138.035.340.123.122.223.630.9

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value-70.431-58.963-45.599-420.543041-154.68360182.453-8.008-11.879500-22.532-21.799-48.818-35.063-72.835-21.22116-21.2149014920316819217417315926615115915714912914412110998104
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-28.8-28.3-14.5-66.75.06.3-22.58.42.60.4-1.2-2.188.7-4.2-4.4-12.0-9.5-22.0-5.84.83.3-3.713.816.919.217.120.219.519.518.531.718.018.918.918.316.819.717.317.116.317.5

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value-70.431-45.599-420.543041-154.68360182.453-8.008-11.879500-22.532-21.799-48.818-35.063-72.835-21.22116-21.21490149203168192174173159266151159157149129144
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-28.8-14.5-66.75.06.3-22.58.42.60.4-1.2-2.188.7-4.2-4.4-12.0-9.5-22.0-5.84.83.3-3.713.816.919.217.120.219.519.518.531.718.018.918.918.316.819.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value7.4514.271110108.8258.8789.4317.1588.2157.9268.4597.0876.9366.7686.5785.9014.7225.6746.0667.9216.0756.0416.0976.9825.6148.2855.7947.015.85.7455.6986.0284.7784.5424.8363.9222.9872.972.9573.1872.9812.9492.9177.008
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value-65.203-0.861-40.074-23.915-23.035-48.675-81.368-105.863-186.73-130.178-116.158-97.182-128.844-96.41-182.835-83.7-82.043-23.197-40.063-60.229-110.73-202.536-205.901-385.33-362.821-321.579-231.244-187.364-132.73-184.21954-210.292-193.928-307.881-275.247-220.37-246.788-195.431-198.877-156.033-117.196-107.802-75.171-64.003-62.284
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-26.6-0.4-12.7-3.8-3.8-7.5-11.8-14.7-25.2-18.7-17.9-16.8-22.8-18.1-36.7-20.7-22.3-7.0-10.9-13.7-22.7-35.8-31.2-43.6-34.3-32.6-24.3-21.0-14.9-21.36.5-25.1-23.0-37.1-33.6-28.6-33.7-27.9-30.9-25.8-19.7-19.3-15.6-14.7-15.7

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value131926484654731331961431319991971249382373966114161208394369330265216140190180219219323281235256200207170116109777764
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-06-302012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value-29.287-31.244-77.532-111.042-77.402-133.84-77.986-78.156-86.347-78.003-73.607-76.497-81.082-76.085-75.899-76.138-68.293-116.461-73.811-74.309-78.62-121.61-77.263431-138.063-61.691-2.943-132.244-74.428-5.288-6.237-9.4971.5619.802-10.655-36.146-54.585-49.12-46.299
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-12.0-15.0-24.7-17.6-12.7-20.6-11.3-10.8-11.7-11.2-11.3-13.2-14.4-14.3-15.2-18.8-18.5-35.1-20.1-17.0-16.1-21.5-11.748.9-13.1-6.5-0.3-15.9-9.1-0.7-0.9-1.40.21.6-1.8-6.5-11.3-11.3-11.7

Payments Of Dividends Common Stock

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:PaymentsOfDividendsCommonStock


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value26277778777878787878767676767676767674747474747474746767535316167.4327.4297.557.5487.5227.5196.4386.4086.3766.3635.3045.35.287
Percentage of PaymentsOfDividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Effective Income Tax Rate Continuing Operations

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:EffectiveIncomeTaxRateContinuingOperations


Effective
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value18.921.7890.2760.2120.3150.2950.1720.2590.139-184.844.4620.706500640.0-0.0160.3120.310.346-0.358-0.1550.3260.5410.0120.2890.3420.3880.0020.3480.3660.341-0.0010.3570.3490.352-0.0020.3510.3670.368-0.0020.3650.3790.3740.0090.403
Percentage of EffectiveIncomeTaxRateContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber


Share
Period End2020-12-312020-09-30
Value2689000.02863000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber us-gaap:AwardType

us-gaap:EmployeeStockOption


Share
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-09-302013-09-302012-09-30
Value2863000.02999000.03028000.03028000.03238000.03263000.03292000.03299000.03499000.03620000.03721000.03755000.03278000.03340000.03293000.03290000.03312000.03409000.03456000.03531000.02776000.02629000.03991000.04690000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice


Share
Period End2020-12-312020-09-30
Value63.3462.41
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice us-gaap:AwardType

us-gaap:EmployeeStockOption


Share
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-09-302013-09-302012-09-30
Value62.4162.4362.4462.4460.8660.8560.7760.7458.6258.0858.1557.8256.4155.9355.955.8451.7451.9451.8551.5148.5143.4634.1229.56
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod

us-gaap:PerformanceShares


Share
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-14
Value0.3130.00.00.00.2590.00.00.145153
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod100.00.00.00.0100.00.00.0100.0

us-gaap:PhantomShareUnitsPSUs


Share
Period End2020-09-30
Value20
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod0.0

us-gaap:RestrictedStock


Share
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value0.6310.00.00.0540.7270.00.0020.00.4730.0010.0060.0020.617
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod201.60.00.00.0280.70.00.00.00.00.00.00.00.0

Deferred Tax Liabilities

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxLiabilities


Deferred
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-30
Value6508068531332143813721271127812581018811
Percentage of DeferredTaxLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Net

us-gaap:DeferredTaxAssetsNet

us-gaap:DeferredTaxAssetsNet


Deferred
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-30
Value62767410096937272666254
Percentage of DeferredTaxAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

us-gaap:UnrecognizedTaxBenefits


Unrecognized
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-302009-09-30
Value1315144.7739.55111108.1298.4386.8785.5495.244
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Valuation Allowance

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:DeferredTaxAssetsValuationAllowance


Deferred
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-30
Value3643485871554749565445
Percentage of DeferredTaxAssetsValuationAllowance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Litigation Reserve Current

us-gaap:LitigationReserveCurrent

us-gaap:LitigationReserveCurrent


Litigation
Period End2020-09-302019-09-302018-09-30
Value393000.09990000.01749000.0
Percentage of LitigationReserveCurrent100.0100.0100.0

Proceeds From Sale Of Short Term Investments

us-gaap:ProceedsFromSaleOfShortTermInvestments

us-gaap:ProceedsFromSaleOfShortTermInvestments


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value37282218251810.0263116201318161920132511174.6
Percentage of ProceedsFromSaleOfShortTermInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

hp:ContractWithCustomerLiabilityIncreaseDecrease

hp:ContractWithCustomerLiabilityIncreaseDecrease


Contract
Period End2020-12-31
Value5.726
Percentage of ContractWithCustomerLiabilityIncreaseDecrease100.0

hp:CumulativeEffectAdjustmentForAccountingStandardsUpdate

hp:CumulativeEffectAdjustmentForAccountingStandardsUpdate


Cumulative
Period End2020-12-31
Value-1251000.0
Percentage of CumulativeEffectAdjustmentForAccountingStandardsUpdate100.0

hp:CumulativeInflationRateBeforeConsideredHighlyInflationary

hp:CumulativeInflationRateBeforeConsideredHighlyInflationary


Cumulative
Period End2020-12-31
Value100.0
Percentage of CumulativeInflationRateBeforeConsideredHighlyInflationary100.0

hp:EarlyTerminationRevenue

hp:EarlyTerminationRevenue


Early
Period End2020-12-312020-06-302020-03-312019-12-312019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value5.8498.20.10.81.27.12.86.04.04.34.65.16.21329807928428471231.40.50.0
Percentage of EarlyTerminationRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

hp:GainFromSaleOfAssetsNetOfTax

hp:GainFromSaleOfAssetsNetOfTax


Gain
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value213.2547.9853.3149.87.78.94.25.53.13.84.22.31.3100.6-1.41.52.91.71.31.92.55.01.42.73.72.82.63.43.43.01.34.93.02.42.22.61.70.51.50.60.7
Percentage of GainFromSaleOfAssetsNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

hp:GainLossRelatedToSaleOfAssetsPerDilutedShare

hp:GainLossRelatedToSaleOfAssetsPerDilutedShare


Gain
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-06-302010-03-312009-12-31
Value0.20.030.070.030.090.070.080.040.050.020.040.040.020.010.090.01-0.010.010.030.020.010.020.020.050.010.020.030.030.020.030.030.030.010.050.030.020.020.020.020.010.010.01
Percentage of GainLossRelatedToSaleOfAssetsPerDilutedShare100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

hp:IncomeLossFromContinuingOperationsBasic

hp:IncomeLossFromContinuingOperationsBasic


Income
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value-78.285-60.966-46.338-421.4712941-155.393717.5872.07-8.891-2.35497-22.173-23.583-48.918-35.0-73.317-21.6442415-20.60990148201167191173172158249150158148149129143121109981048364
Percentage of IncomeLossFromContinuingOperationsBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

hp:IncomeLossFromContinuingOperationsDiluted

hp:IncomeLossFromContinuingOperationsDiluted


Income
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value-78.285-60.966-46.338-421.4712941-155.393717.5862.067-8.891-2.35497-22.173-23.583-48.918-35.0-73.317-21.6442415-20.61390148201167191173172158249150158148149129143121109981048364
Percentage of IncomeLossFromContinuingOperationsDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

hp:IncreaseDecreaseInAccountsPayableAndAccruedLiabilitiesRelatedToPurchasesOfPropertyPlantAndEquipment

hp:IncreaseDecreaseInAccountsPayableAndAccruedLiabilitiesRelatedToPurchasesOfPropertyPlantAndEquipment


Increase
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value-0.3690.8722.0621.528-1.3391.4923.5454.0268.708-3.3150.8334.685-4.448
Percentage of IncreaseDecreaseInAccountsPayableAndAccruedLiabilitiesRelatedToPurchasesOfPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

hp:IncreaseDecreaseInAccountsReceivablePropertyPlantAndEquipmentAndOtherLongTermAssetsRelatedToTheSaleOfEquipment

hp:IncreaseDecreaseInAccountsReceivablePropertyPlantAndEquipmentAndOtherLongTermAssetsRelatedToTheSaleOfEquipment


Increase
Period End2020-12-31
Value9290000.0
Percentage of IncreaseDecreaseInAccountsReceivablePropertyPlantAndEquipmentAndOtherLongTermAssetsRelatedToTheSaleOfEquipment100.0

hp:RestructuringCostsNetOftax

hp:RestructuringCostsNetOftax


Restructuring
Period End2020-09-302020-06-30
Value0.42812
Percentage of RestructuringCostsNetOftax100.0100.0

hp:SelfInsuranceCoverageDeductiblesRangeForClaimsIncurred us-gaap:Range

hp:SelfInsuranceCoverageDeductiblesRangeForClaimsIncurred

srt:Maximum


Self
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value10000000.000010000000.00005000000.0
Percentage of SelfInsuranceCoverageDeductiblesRangeForClaimsIncurred100.00.00.00.0100.00.00.00.0100.0

srt:Minimum


Self
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value1000000.00001000000.00001000000.0
Percentage of SelfInsuranceCoverageDeductiblesRangeForClaimsIncurred10.00.00.00.010.00.00.00.020.0

hp:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsReinvestedDividendsInPeriod

hp:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsReinvestedDividendsInPeriod


Share
Period End2020-12-31
Value42000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsReinvestedDividendsInPeriod100.0

hp:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsReinvestedDividendsWeightedAverageGrantDateFairValue

hp:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsReinvestedDividendsWeightedAverageGrantDateFairValue


Share
Period End2020-12-31
Value52.85
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsReinvestedDividendsWeightedAverageGrantDateFairValue100.0

hp:ShareBasedCompensationArrangementByShareBasedPaymentAwardPerShareWeightedAveragePrice

hp:ShareBasedCompensationArrangementByShareBasedPaymentAwardPerShareWeightedAveragePrice


Share
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value55.610.0958.2758.0361.02-0.8864.2264.0467.25-0.2375.5668.6963.470.5470.8280.4380.630.0351.9462.2963.66073.3672.8572.870079.6779.670.0557.2957.357.24054.8659.7655.060047.9447.94038.02
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardPerShareWeightedAveragePrice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.00.0100.0100.00.0100.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalOther

us-gaap:AdjustmentsToAdditionalPaidInCapitalOther


Adjustments
Period End2020-12-31
Value-381000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalOther100.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalOther us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2020-12-31
Value-381000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalOther100.0

us-gaap:AmortizationOfFinancingCostsAndDiscounts

us-gaap:AmortizationOfFinancingCostsAndDiscounts


Amortization
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value460000.0459000.0458000.0456000.0444000.0556000.0424000.0423000.0329000.0269000.0267000.0265000.0266000.0266000.0264000.0262000.0263000.0289000.0321000.0303000.0255000.0264000.0298000.0129000.058000.0
Percentage of AmortizationOfFinancingCostsAndDiscounts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetImpairmentCharges

us-gaap:AssetImpairmentCharges


Asset
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302016-09-302016-06-30
Value0.00.05630.02240.0230.00.06.25
Percentage of AssetImpairmentCharges0.00.0100.00.0100.00.0100.00.00.0100.0

us-gaap:CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations

us-gaap:CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations


Cash
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value-0.003-0.009-0.01-0.0280.0-0.006-0.011-0.019-0.026-0.019-0.054-0.039-0.057-0.035-0.035-0.061-0.019-0.023-0.028-0.0060.104-0.006-0.0270.001-0.015-0.017-0.0110.00.1810.013-0.0080.009-0.018-0.044-0.011-0.094-0.002-0.171-0.215-2.855-0.402-0.142-0.963
Percentage of CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonStockDividendsPerShareDeclared

us-gaap:CommonStockDividendsPerShareDeclared


Common
Period End2020-09-092020-06-032020-06-302020-03-042020-03-312019-12-132019-12-312019-09-042019-09-302019-06-052019-06-302019-03-062019-03-312018-12-142018-12-312018-09-052018-09-302018-06-062018-06-302018-03-072018-03-312017-12-052017-12-312017-09-062017-09-302017-06-072017-06-302017-03-022017-03-012017-03-312016-12-072016-12-062016-12-312016-09-082016-09-302016-06-012016-06-302016-03-022016-03-012016-03-312015-12-012015-12-312015-09-022015-09-302015-06-032015-06-302015-03-042015-03-312014-12-022014-12-312014-09-032014-09-302014-06-042014-06-302014-03-052014-03-312013-12-032013-12-312013-09-042013-09-302013-06-052013-06-302013-03-062013-03-312012-12-042012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value0.250.250.250.710.710.710.710.710.710.710.710.710.710.710.710.710.710.710.710.70.70.70.70.70.70.70.70.70.70.70.70.70.70.70.70.70.70.68750.68750.68750.68750.68750.68750.68750.68750.68750.68750.68750.68750.68750.68750.6850.68750.690.6250.6250.6250.6250.50.50.50.50.150.150.150.150.070.070.070.070.070.070.060.060.060.060.050.05
Percentage of CommonStockDividendsPerShareDeclared100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConcentrationRiskPercentage1 us-gaap:ConcentrationRiskByBenchmark, us-gaap:ConcentrationRiskByType, us-gaap:GeographicDistribution

us-gaap:ConcentrationRiskPercentage1

us-gaap:SalesRevenueNet, us-gaap:GeographicConcentrationRisk, us-gaap:GeographicDistributionForeign


Concentration
Period End2020-12-312020-06-302020-03-312019-12-312019-06-302019-03-312018-12-31
Value4.40.0730.0820.0780.0680.0710.089
Percentage of ConcentrationRiskPercentage1100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConcentrationRiskPercentage1 us-gaap:StatementGeographical, us-gaap:ConcentrationRiskByBenchmark, us-gaap:ConcentrationRiskByType, us-gaap:GeographicDistribution, us-gaap:StatementBusinessSegments

srt:SouthAmerica, us-gaap:SalesRevenueSegment, us-gaap:GeographicConcentrationRisk, us-gaap:GeographicDistributionForeign, hp:InternationalSolutionsSegment


Concentration
Period End2020-12-312020-06-302019-12-312019-06-30
Value18.10.33287.00.951
Percentage of ConcentrationRiskPercentage1411.4454.8111538.51398.5

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

us-gaap:ContractWithCustomerLiabilityRevenueRecognized


Contract
Period End2020-12-31
Value6208000.0
Percentage of ContractWithCustomerLiabilityRevenueRecognized100.0

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses


Defined
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value-590000.0-711000.0-669000.0-669000.0-669000.0-355000.0-291000.0-291000.0-292000.0-544000.0-461000.0-460000.0-461000.0-1167000.0-574000.0-575000.0-575000.0-604000.0-493000.0-493000.0-493000.0-381000.0-309000.0-309000.0-309000.0-187000.0-228000.0-229000.0-229000.0-317000.0-685000.0-685000.0-685000.0-980000.0-863000.0-862000.0-862000.0-725000.0-751000.0-750000.0-750000.0
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets


Defined
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value967000.0641000.01381000.01381000.01381000.01365000.01386000.01386000.01386000.01397000.01386000.01386000.01386000.01234000.01298000.01299000.01299000.01146000.01490000.01490000.01490000.01626000.01743000.01743000.01743000.01797000.01664000.01664000.01664000.01611000.01496000.01496000.01496000.01585000.01293000.01292000.01293000.01495000.01185000.01185000.01185000.0
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanInterestCost

us-gaap:DefinedBenefitPlanInterestCost


Defined
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value753000.0307000.01097000.01097000.01097000.01098000.01097000.01097000.01097000.01036000.01013000.01014000.01014000.01128000.0975000.0975000.0975000.0919000.01116000.01115000.01116000.01071000.01171000.01171000.01171000.01160000.01201000.01201000.01201000.01024000.01105000.01105000.01105000.01189000.01103000.01103000.01103000.01171000.01116000.01116000.01116000.0
Percentage of DefinedBenefitPlanInterestCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost


Defined
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value1391000.01564000.02199000.0385000.0385000.0493000.01550000.02000.03000.01096000.088000.088000.089000.01290000.01662000.0251000.0251000.01998000.02008000.01572000.0119000.01499000.0937000.0-263000.0-263000.0926000.0-235000.0-234000.0-234000.0-269000.0294000.0294000.0294000.0586000.0673000.0673000.0672000.0429000.0682000.0681000.0681000.0
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1

us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1


Defined
Period End2020-12-312020-09-302020-06-302019-09-302019-06-302018-09-302018-06-302017-09-302017-06-302016-09-302016-06-302016-03-312015-09-302015-06-30
Value-1015000.0-1201000.0-1814000.0-453000.0-1548000.0-913000.00-229000.0-1411000.0-1621000.0-1889000.0-1454000.0-1673000.0-1200000.0
Percentage of DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Depreciation

us-gaap:Depreciation


Depreciation
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-06-302016-03-31
Value105107108130128133141141140148143144152145152138141
Percentage of Depreciation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax

us-gaap:DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax


Discontinued
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value7.4937.9059.1516.0677.457107.2442.88912148.3831.263-0.5190.583.223-0.094-0.4240.1192.193-0.0560.104-0.006-0.027-0.076-0.015-0.017-0.0112.7860.015-0.472-0.0087.509-0.018-0.125-0.011-0.094-0.002-0.176-0.2151.216-101.548-22.744-2.868
Percentage of DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DiscontinuedOperationTaxEffectOfDiscontinuedOperation

us-gaap:DiscontinuedOperationTaxEffectOfDiscontinuedOperation


Discontinued
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value6.2228.7436.1397.581107.306132.07138.217110.0171.4011.8970.2510.0850.0852.23.9130.00.0-0.0770.00.02.8050.00.0-0.4850.00.0-0.0810.00.0-0.0051.4620.054.614
Percentage of DiscontinuedOperationTaxEffectOfDiscontinuedOperation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.00.00.0100.00.00.0100.00.00.0100.00.00.0100.0100.0100.0100.0

us-gaap:DividendsCommonStockCash

us-gaap:DividendsCommonStockCash


Dividends
Period End2020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value27277678777878787878767676767676767674747474747474746867535316167.4237.4357.5527.557.5257.5196.4446.405
Percentage of DividendsCommonStockCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DividendsCommonStockCash us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Dividends
Period End2020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value27277678777878787878767676767676767674747474747474746867535316167.4237.4357.5527.557.5257.5196.4446.405
Percentage of DividendsCommonStockCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EquitySecuritiesFvNiGainLoss

us-gaap:EquitySecuritiesFvNiGainLoss


Equity
Period End2020-12-312020-09-302020-06-302020-03-31
Value2900000.0-1400000.02300000.0-12400000.0
Percentage of EquitySecuritiesFvNiGainLoss100.0100.0100.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings

us-gaap:FairValueInputsLevel3


Fair
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value-0.1-5.4-0.9-3.80.0-8.8820.54-3.1320.3141.758-0.1751.3463.9770.3714
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases

us-gaap:FairValueInputsLevel3


Fair
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.00.00.01.5170.00.00.6730.00.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases0.00.00.0100.0100.00.00.0100.00.00.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements

us-gaap:FairValueInputsLevel3


Fair
Period End2020-12-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value0.254.00.04.250.00.00.00.06.1253.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements100.0100.00.0100.00.00.00.00.0100.0100.0

us-gaap:ForeignCurrencyTransactionGainLossBeforeTax

us-gaap:ForeignCurrencyTransactionGainLossBeforeTax


Foreign
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value-1800000.0-2800000.0-3200000.0-3400000.01000000.0-3600000.0100000.0-700000.0-3900000.0-1500000.0-1100000.0200000.0-1500000.0-3800000.0-1300000.0-600000.0-1400000.0100000.0-1100000.0200000.0-8500000.01300000.0-300000.0-300000.01500000.0
Percentage of ForeignCurrencyTransactionGainLossBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnDispositionOfAssets1

us-gaap:GainLossOnDispositionOfAssets1


Gain
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value12274.201104.279129.96115.5457.5274.3135.2555.5653.0341.862140.8422.0760.5472.6844.5892.8621.7842.9154.1557.6952.1284.0985.6644.3854.0065.3135.219
Percentage of GainLossOnDispositionOfAssets1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnDispositionOfAssets1 us-gaap:ConsolidationItems

us-gaap:MaterialReconcilingItems


Gain
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value12274.201104.279129.96115.545
Percentage of GainLossOnDispositionOfAssets1100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnDispositionOfAssets1 us-gaap:StatementBusinessSegments

hp:OffshoreGulfofMexico


Gain
Period End2020-12-31
Value9.2
Percentage of GainLossOnDispositionOfAssets174.6

us-gaap:GainLossOnSaleOfOtherAssets

us-gaap:GainLossOnSaleOfOtherAssets


Gain
Period End2020-12-312020-06-302020-03-312019-12-312019-06-302019-03-312018-12-31
Value124.201104.2799.96115.545
Percentage of GainLossOnSaleOfOtherAssets100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee

us-gaap:GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee


Gain
Period End2020-09-302020-06-302020-03-312019-12-312019-06-302019-03-312018-12-31
Value0.00.00.0140.00.00.0
Percentage of GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee0.00.00.0100.00.00.00.0

us-gaap:GainOrLossOnSaleOfStockInSubsidiary

us-gaap:GainOrLossOnSaleOfStockInSubsidiary


Gain
Period End2020-09-302020-06-302020-03-312019-12-312019-06-302019-03-312018-12-31
Value0.00.00.0140.00.00.0
Percentage of GainOrLossOnSaleOfStockInSubsidiary0.00.00.0100.00.00.00.0

us-gaap:GeneralInsuranceExpense

us-gaap:GeneralInsuranceExpense


General
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value0.50.59999999999999811.16.08.5
Percentage of GeneralInsuranceExpense100.0100.0100.0100.0100.0

us-gaap:GoodwillImpairmentLoss

us-gaap:GoodwillImpairmentLoss


Goodwill
Period End2020-09-302020-06-302020-03-31
Value0.00.03338
Percentage of GoodwillImpairmentLoss0.0100.0100.0

us-gaap:ImpairedAssetsToBeDisposedOfByMethodOtherThanSaleAmountOfImpairmentLoss

us-gaap:ImpairedAssetsToBeDisposedOfByMethodOtherThanSaleAmountOfImpairmentLoss


Impaired
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-06-302014-03-31
Value0.31.40.90.90.84.61.44.41.05.27.08.27.3157.7180.8380.10.30.5301.3102.21.51.8
Percentage of ImpairedAssetsToBeDisposedOfByMethodOtherThanSaleAmountOfImpairmentLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity


Income
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value7.4931.6830.408-0.072-0.124-0.713-0.062-10.966100.2780.166-10.246-0.536-0.8211.326-0.345-0.5090.034-0.007-3.9690.104-0.006-0.0270.001-0.015-0.017-0.011-0.0190.0150.013-0.0087.509-0.018-0.044-0.011-0.094-0.002-0.171-0.215
Percentage of IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare


Income
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302016-09-302016-06-302016-03-312013-09-302013-06-302010-09-302010-06-302010-03-31
Value0.070.02000-0.010-0.10.100-0.090.0100-0.0400.140-0.96-0.26
Percentage of IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare100.0100.00.00.00.0100.00.0100.0100.00.00.0100.0100.00.00.0100.00.0100.00.0100.0100.0

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare


Income
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302016-09-302016-06-302016-03-312013-09-302013-06-302010-09-302010-06-302010-03-31
Value0.070.02000-0.010-0.10.100-0.090.0100-0.0400.140-0.95-0.25
Percentage of IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare100.0100.00.00.00.0100.00.0100.0100.00.00.0100.0100.00.00.0100.00.0100.00.0100.0100.0

us-gaap:IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost

us-gaap:IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost


Income
Period End2020-12-312019-12-31
Value4100000.02400000.0
Percentage of IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost100.0100.0

us-gaap:IncreaseDecreaseInAccruedLiabilities

us-gaap:IncreaseDecreaseInAccruedLiabilities


Increase
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value-6.674-20.236-50.032-60.053-8.093328.5662.463-2.9193.1321-6.906151723-7.146-69.73334-36.427-23.1117426-4.426-6.053-39.3524.21250-57.72238-59.03191-72.077647.9636.315-14.8740.7915.236300.12-15.072-5.99422-41.6339
Percentage of IncreaseDecreaseInAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInDeferredIncomeTaxes

us-gaap:IncreaseDecreaseInDeferredIncomeTaxes


Increase
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value-16000.0-570000.0-316000.0-6000.0-360000.0149000.0-466000.0306000.0-4779000.0-3469000.07967000.0-1987000.0-109000.0-193000.091000.01153000.0-96000.0-93000.0907000.0-3487000.0-311000.0-317000.0-199000.0229000.0-143000.0-182000.0-208000.01317000.0382000.080000.0557000.0654000.0-146000.0531000.0-92000.0-113000.0-42000.034000.0
Percentage of IncreaseDecreaseInDeferredIncomeTaxes100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherNoncurrentAssets

us-gaap:IncreaseDecreaseInOtherNoncurrentAssets


Increase
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value-1.6292.5234.764-3.74-6.3674.5311.2974.3290.2730.537-11.098
Percentage of IncreaseDecreaseInOtherNoncurrentAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherNoncurrentLiabilities

us-gaap:IncreaseDecreaseInOtherNoncurrentLiabilities


Increase
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value1.8347.702-0.511-2.78-2.1848.303-0.7264.344-9.67-4.2916.7764.373-17.645-4.8710-2.489-15.8271.91-4.802-3.181-10.758-2.25410219.7270.41-0.977-3.832-6.2510.248-5.764-6.796-5.0592.463-1.766
Percentage of IncreaseDecreaseInOtherNoncurrentLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets


Increase
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value5.9358.557-19.013-3.73719-9.3813-4.1690.209-4.9451.742-4.4048.562-4.614-8.99-10.542-7.288-4.07720-17.413.657-25.633212.262151116-1.812-20.0039.83415-1.587-29.459-13.52918-1.72124-19.663110.873-4.911.061-4.2973.24312
Percentage of IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InventoryWriteDown

us-gaap:InventoryWriteDown


Inventory
Period End2020-12-312019-12-31
Value216000.0693000.0
Percentage of InventoryWriteDown100.0100.0

us-gaap:InvestmentIncomeInterestAndDividend

us-gaap:InvestmentIncomeInterestAndDividend


Investment
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value1879000.0753000.0771000.03566000.02214000.02607000.02349000.02061000.02450000.02337000.02109000.01847000.01724000.01887000.01700000.01338000.0990000.0856000.0778000.0799000.0733000.01398000.01602000.02549000.0285000.0267000.0373000.0490000.0453000.0571000.0341000.0315000.0426000.0359000.0329000.0356000.0336000.0378000.0903000.0356000.0314000.0275000.0940000.0287000.0309000.0
Percentage of InvestmentIncomeInterestAndDividend100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LeaseCost

us-gaap:LeaseCost


Lease
Period End2020-09-302020-06-302020-03-31
Value4.7014.3194.748
Percentage of LeaseCost100.0100.0100.0

us-gaap:NetCashProvidedByUsedInOperatingActivitiesContinuingOperations

us-gaap:NetCashProvidedByUsedInOperatingActivitiesContinuingOperations


Net
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value-19.6019221312011119625019920918616112472121897570138122184308271334422389320257235304235267152341387174202236281244213238132107103123
Percentage of NetCashProvidedByUsedInOperatingActivitiesContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeaseCost


Operating
Period End2020-09-302020-06-302020-03-31
Value4.3114.0854.286
Percentage of OperatingLeaseCost100.0100.0100.0

us-gaap:OperatingLeaseExpense

us-gaap:OperatingLeaseExpense


Operating
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value4.74.34.73.93.94.0
Percentage of OperatingLeaseExpense100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeasePayments

us-gaap:OperatingLeasePayments


Operating
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-06-30
Value3.9864.7014.3194.7494.8770.0
Percentage of OperatingLeasePayments100.0100.0100.0100.0100.00.0

us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value-0.457-0.894-0.521-0.516-0.51612-0.226-0.224-0.225-4.264-0.337-0.308-0.34-2.236-0.365-0.366-0.3663.465-0.314-0.313-0.3134.876-0.197-0.197-0.1963.098-0.145-0.145-0.147-10.107-0.441-0.432-0.433-2.539-0.556-0.54-0.5395.019-0.469-0.469-0.468
Percentage of OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value100000.0-1400000.0300000.0200000.0200000.03600000.0-200000.0-100000.0-100000.0395100000.0-124000000.0-200000.0-100000.0-1300000.0-200000.0-200000.0200000.0-900000.0-100000.0-200000.0200000.0-2200000.0-100000.0-100000.0-100000.0-1800000.0100000.0100000.0100000.05800000.0300000.0300000.0200000.03389000.0-306000.0-323000.0-324000.0-1322000.0-282000.0-281000.0-282000.0
Percentage of OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value0.4570.8940.5210.5160.516-12.550.2260.2240.2257.60814-7.26-0.2616.401-6.534-10.141122.95210-1.14-10.697-38.339-3.11-1.006-42.048-29.319-0.98-16.291-2.81427-99.597370.29945-37.5162732
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312014-06-302014-03-312013-12-31
Value0.4570.8940.5210.5160.5160.1450.1450.147
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0-14.8-0.9-5.2

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value0.4570.5210.5160.516-12.550.2260.2240.2257.60814-7.26-0.2616.401-6.534-10.141122.95210-1.14-10.697-38.339-3.11-1.006-42.048-29.319-0.98-16.291-2.814
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherCostOfOperatingRevenue

us-gaap:OtherCostOfOperatingRevenue


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value1.3621.4911.5491.315111.0741.4141.621.274221.4241.1371.167
Percentage of OtherCostOfOperatingRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherNoncashIncomeExpense

us-gaap:OtherNoncashIncomeExpense


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-09-302013-09-302013-06-302012-06-302011-06-302010-09-30
Value-1458000.0-2691000.0-888000.03640000.0139000.010604000.0-8565000.03377000.0-168000.0-2975000.01966000.0-1902000.0-3799000.0-481000.0-30000.0-22000.0-10000.0104000.0-150000.0128000.0-233000.0-1000.0-1334000.0-384000.0-132000.0-4000.00
Percentage of OtherNoncashIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:OtherOperatingIncome

us-gaap:OtherOperatingIncome


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value1.5962.6462.9593.3493.2593.2913.1863.2153.24
Percentage of OtherOperatingIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentForContingentConsiderationLiabilityFinancingActivities

us-gaap:PaymentForContingentConsiderationLiabilityFinancingActivities


Payment
Period End2020-12-312020-09-302020-06-302019-09-302019-06-302018-09-302018-06-302018-03-312017-12-31
Value0.254.00.00.00.00.06.1253.01.5
Percentage of PaymentForContingentConsiderationLiabilityFinancingActivities100.0100.00.00.00.00.0100.0100.0100.0

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsForProceedsFromOtherInvestingActivities


Payments
Period End2020-09-302020-06-302019-06-30
Value500000.0-1000.00
Percentage of PaymentsForProceedsFromOtherInvestingActivities100.0100.00.0

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value2119000.032000.0297000.003455000.0-2000.0152000.01000.06267000.01136000.0187000.0320000.05471000.00169000.032000.05647000.00295000.003617000.036000.0856000.004248000.00003049000.00001677000.00001514000.0
Percentage of PaymentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.00.0100.0100.0100.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.0

us-gaap:PaymentsToAcquireShortTermInvestments

us-gaap:PaymentsToAcquireShortTermInvestments


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value9556417.388282529113118152016201122152015146.918
Percentage of PaymentsToAcquireShortTermInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromDivestitureOfInterestInConsolidatedSubsidiaries

us-gaap:ProceedsFromDivestitureOfInterestInConsolidatedSubsidiaries


Proceeds
Period End2020-09-302020-06-302020-03-312019-12-312019-06-302019-03-312018-12-31
Value0.00.00.0150.00.00.0
Percentage of ProceedsFromDivestitureOfInterestInConsolidatedSubsidiaries0.00.00.0100.00.00.00.0

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities


Proceeds
Period End2020-09-302020-06-302020-03-312019-12-312019-06-302019-03-312018-12-31
Value0-1000.00-445000.0000
Percentage of ProceedsFromPaymentsForOtherFinancingActivities0.0100.00.0100.00.00.00.0

us-gaap:ProceedsFromSaleOfProductiveAssets

us-gaap:ProceedsFromSaleOfProductiveAssets


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value6.836476.40112111411121116109.0778.7495.4914.462121.2099.0413.0893.6576.0584.6962.5918.0897.1259.2858.1645.4087.9136.2975.5788.7377.4148.0566.29515105.0574.716133.0281.572.681.1312.486
Percentage of ProceedsFromSaleOfProductiveAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment us-gaap:StatementBusinessSegments

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment

hp:OffshoreGulfofMexico


Proceeds
Period End2020-12-31
Value12
Percentage of ProceedsFromSaleOfPropertyPlantAndEquipment100.0

us-gaap:ProceedsFromStockOptionsExercised

us-gaap:ProceedsFromStockOptionsExercised


Proceeds
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value0.00.00.04.10.1520.6440.3031.9541.1953.5150.7530.892-0.350.5120.119100.5570.682-0.14-0.0593.2590.4690.984-2.0620.882.669118.2017.1991.2124.4330.4730.2990.4791.5220.3731.7072.6198.1272.9880.189-0.70.932-0.623
Percentage of ProceedsFromStockOptionsExercised0.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProvisionForDoubtfulAccounts

us-gaap:ProvisionForDoubtfulAccounts


Provision
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302015-12-312014-09-302014-06-302013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value-465000.0-1948000.02372000.03848000.0-2069000.01777000.0619000.0-948000.0873000.01595000.0169000.0376000.053000.0-1842000.038000.01470000.02350000.01054000.06000.0-6000.0094000.0-11000.03790000.02000.0203000.0002000.0103000.002000.01000.0202000.01000.01000.02000.0
Percentage of ProvisionForDoubtfulAccounts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.00.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0

us-gaap:ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent us-gaap:StatementEquityComponents

us-gaap:ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Reclassification
Period End2020-12-312020-09-302020-06-302020-03-312017-09-302017-06-302017-03-31
Value-0.457-0.894-0.521-0.516-2.236-0.365-0.366
Percentage of ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedStockSharesIssuedNetOfSharesForTaxWithholdings us-gaap:StatementEquityComponents

us-gaap:RestrictedStockSharesIssuedNetOfSharesForTaxWithholdings

us-gaap:CommonStock


Restricted
Period End2020-12-312019-12-312019-09-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302012-06-302012-03-312011-12-31
Value72000.071000.0071000.000051000.0000041000.0
Percentage of RestrictedStockSharesIssuedNetOfSharesForTaxWithholdings100.0100.00.0100.00.00.00.0100.00.00.00.00.0100.0

us-gaap:TreasuryStockCommon


Restricted
Period End2020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value-295000.0-53000.0-1000.0-258000.0-1000.0-6000.0-215000.00-5000.0-3000.0-128000.000
Percentage of RestrictedStockSharesIssuedNetOfSharesForTaxWithholdings-409.70.00.0-363.40.00.0-302.80.00.00.0-251.00.00.0

us-gaap:RestrictedStockValueSharesIssuedNetOfTaxWithholdings

us-gaap:RestrictedStockValueSharesIssuedNetOfTaxWithholdings


Restricted
Period End2020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302012-06-302012-03-312011-12-31
Value-2.117-0.2960.0-3.4010.001-0.1530.0-4.537-0.019-0.0860.0-4.0880.0-0.1690.00.0-1.514
Percentage of RestrictedStockValueSharesIssuedNetOfTaxWithholdings100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.00.0100.00.00.0100.0

us-gaap:RestrictedStockValueSharesIssuedNetOfTaxWithholdings us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Restricted
Period End2020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302012-06-302012-03-312011-12-31
Value-16.742-2.879-0.053-18.126-0.04-0.489-0.025-16.673-0.016-0.373-0.151-11.3170.0-0.1670.00.0-2.485
Percentage of RestrictedStockValueSharesIssuedNetOfTaxWithholdings790.8972.60.0533.0-4000.0319.60.0367.584.2433.70.0276.80.098.80.00.0164.1

us-gaap:CommonStock


Restricted
Period End2020-12-312019-12-312019-09-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302012-06-302012-03-312011-12-31
Value0.0070.0070.00.0070.00.00.00.0050.00.00.00.00.004
Percentage of RestrictedStockValueSharesIssuedNetOfTaxWithholdings-0.3-0.20.0-0.2-0.0-0.00.0-0.10.0-0.00.00.0-0.3

us-gaap:TreasuryStockCommon


Restricted
Period End2020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value142.5830.053140.0410.3360.02512-0.0030.2870.1517.2240.0-0.002
Percentage of RestrictedStockValueSharesIssuedNetOfTaxWithholdings-690.5-872.60.0-432.84100.0-219.60.0-267.315.8-333.70.0-176.70.01.2

us-gaap:RestructuringCharges

us-gaap:RestructuringCharges


Restructuring
Period End2020-09-30
Value12
Percentage of RestructuringCharges100.0

us-gaap:RestructuringCharges us-gaap:RestructuringCostAndReserve

us-gaap:EmployeeSeverance


Restructuring
Period End2020-09-30
Value0.552
Percentage of RestructuringCharges4.4

us-gaap:RestructuringCosts

us-gaap:RestructuringCosts


Restructuring
Period End2020-12-312020-09-302020-06-302019-06-30
Value0.1380.552150.0
Percentage of RestructuringCosts100.0100.0100.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod

us-gaap:PerformanceShares


Share
Period End2020-09-30
Value22000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod100.0

us-gaap:RestrictedStock


Share
Period End2020-12-312020-09-30
Value2000.027000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod0.0122.7

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue

us-gaap:PerformanceShares


Share
Period End2020-09-30
Value-4.63
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue100.0

us-gaap:RestrictedStock


Share
Period End2020-12-312020-09-30
Value49.07-0.39
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue0.08.4

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

us-gaap:PerformanceShares


Share
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value29.7700043.400
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue100.00.00.00.0100.00.00.0

us-gaap:RestrictedStock


Share
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value25.2900-1.8941.880-0.03
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue85.00.00.00.096.50.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod

us-gaap:RestrictedStock


Share
Period End2020-12-31
Value466000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue

us-gaap:RestrictedStock


Share
Period End2020-12-31
Value55.93
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate

us-gaap:PerformanceShares


Share
Period End2020-12-312019-12-312018-12-31
Value62.30.3480.359
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate

us-gaap:PerformanceShares


Share
Period End2020-12-312019-12-312018-12-31
Value0.20.0160.027
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue

us-gaap:EmployeeStockOption


Share
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value0.00.00.00.30.00.30.17.63.31.01.64.11.10.30.1110.30.91.93.1
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue0.00.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod


Share
Period End2020-12-312019-06-30
Value174000.014000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod us-gaap:AwardType

us-gaap:EmployeeStockOption


Share
Period End2020-09-302020-06-302020-03-312019-09-302017-03-312016-09-302016-06-302016-03-31
Value137000.029000.0021000.02000.081000.023000.014000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod0.00.00.00.00.00.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice


Share
Period End2020-12-312019-06-30
Value48.1762.24
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice us-gaap:AwardType

us-gaap:EmployeeStockOption


Share
Period End2020-09-302020-06-302020-03-312019-09-302017-03-312016-09-302016-06-302016-03-31
Value4.0962.7401.3753.850.7663.4658.25
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice0.00.00.00.00.00.00.00.0

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice

us-gaap:EmployeeStockOption


Share
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-31
Value0000.2542.6742.56-2.3256.0230.66-1.3435.1149.670.7928.030.94
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice0.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShortTermLeaseCost

us-gaap:ShortTermLeaseCost


Short
Period End2020-09-302020-06-302020-03-31
Value390000.0234000.0462000.0
Percentage of ShortTermLeaseCost100.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised us-gaap:AwardType

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised

us-gaap:EmployeeStockOption


Stock
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value-1000.000202000.04000.015000.07000.0191000.085000.066000.041000.0183000.060000.015000.05000.0335000.016000.024000.061000.0119000.0
Percentage of StockIssuedDuringPeriodSharesStockOptionsExercised100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TangibleAssetImpairmentCharges

us-gaap:TangibleAssetImpairmentCharges


Tangible
Period End2020-09-30
Value0.0
Percentage of TangibleAssetImpairmentCharges0.0

us-gaap:TangibleAssetImpairmentCharges us-gaap:PropertyPlantAndEquipmentByType

hp:DomesticAndInternationalConventionalFlexRig3AndFlexRig4AssetGroups


Tangible
Period End2020-09-302020-06-302020-03-31
Value0.00.0441
Percentage of TangibleAssetImpairmentCharges0.00.00.0

us-gaap:UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic

us-gaap:UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic


Undistributed
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value361000.0320000.0331000.01003000.0991000.0770000.0772000.0784000.0777000.0105000.0717000.0717000.03537000.0462000.0458000.0445000.0446000.0448000.0451000.0483000.0260000.0-599000.0558000.0948000.01255000.0985000.01134000.01035000.0992000.0
Percentage of UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

hp:AccruedDeferredMobilizationCurrent

hp:AccruedDeferredMobilizationCurrent


Accrued
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-30
Value4.528109.6629.82817181812131113
Percentage of AccruedDeferredMobilizationCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

hp:AccruedDeferredMobilizationLiabilityCurrent

hp:AccruedDeferredMobilizationLiabilityCurrent


Accrued
Period End2020-09-302019-09-302018-09-30
Value5.705149.662
Percentage of AccruedDeferredMobilizationLiabilityCurrent100.0100.0100.0

hp:AccruedDeferredMobilizationNoncurrent

hp:AccruedDeferredMobilizationNoncurrent


Accrued
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-30
Value2.9559.4712.7387.68924393.8188.06719127.816
Percentage of AccruedDeferredMobilizationNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

hp:AccruedDemobilizationExpensesCurrent

hp:AccruedDemobilizationExpensesCurrent


Accrued
Period End2020-09-302019-09-302018-09-30
Value2367000.02151000.00
Percentage of AccruedDemobilizationExpensesCurrent100.0100.00.0

hp:AccruedOperatingCostCurrent

hp:AccruedOperatingCostCurrent


Accrued
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-30
Value1034373617289130375023
Percentage of AccruedOperatingCostCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

hp:AccruedPayrollTaxesNoncurrent

hp:AccruedPayrollTaxesNoncurrent


Accrued
Period End2020-09-30
Value10
Percentage of AccruedPayrollTaxesNoncurrent100.0

hp:BusinessCombinationContingentConsiderationLiabilityMeasurementInputPaymentAmount us-gaap:Range, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:MeasurementInputType, us-gaap:ValuationTechnique

hp:BusinessCombinationContingentConsiderationLiabilityMeasurementInputPaymentAmount

srt:Minimum, us-gaap:FairValueInputsLevel3, hp:MeasurementInputPaymentAmount, hp:ValuationTechniqueProbabilityAnalysis


Business
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value5250000.05250000.03000000.03000000.03000000.03000000.0
Percentage of BusinessCombinationContingentConsiderationLiabilityMeasurementInputPaymentAmount100.0100.0100.0100.0100.0100.0

srt:WeightedAverage, us-gaap:FairValueInputsLevel3, hp:MeasurementInputPaymentAmount, hp:ValuationTechniqueProbabilityAnalysis


Business
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value6400000.06400000.05400000.05400000.04800000.04800000.0
Percentage of BusinessCombinationContingentConsiderationLiabilityMeasurementInputPaymentAmount121.9121.9180.0180.0160.0160.0

hp:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNetNoncurrent

hp:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNetNoncurrent


Debt
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-09-30
Value5961000.06421000.06879000.07337000.07793000.07792000.06032000.0
Percentage of DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNetNoncurrent100.0100.0100.0100.0100.0100.0100.0

hp:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNetNoncurrent us-gaap:DebtInstrument

hp:UnsecuredSeniorNotesIssued2015


Debt
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-09-30
Value5961000.06421000.06879000.07337000.07793000.07792000.06032000.0
Percentage of DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNetNoncurrent100.0100.0100.0100.0100.0100.0100.0

hp:DeferredTaxAssetsOperatingLossAndTaxCreditCarryforwards

hp:DeferredTaxAssetsOperatingLossAndTaxCreditCarryforwards


Deferred
Period End2020-09-302019-09-302018-09-302017-09-302016-09-30
Value3341556271
Percentage of DeferredTaxAssetsOperatingLossAndTaxCreditCarryforwards100.0100.0100.0100.0100.0

hp:DeferredTaxAssetsTaxCreditCarryforwardsForeignMinimumTax us-gaap:IncomeTaxAuthority

hp:DeferredTaxAssetsTaxCreditCarryforwardsForeignMinimumTax

us-gaap:ForeignCountry


Deferred
Period End2020-09-30
Value1400000.0
Percentage of DeferredTaxAssetsTaxCreditCarryforwardsForeignMinimumTax100.0

hp:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsFinancialAccruals

hp:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsFinancialAccruals


Deferred
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-30
Value3254456267635248393631
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsFinancialAccruals100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

hp:DeferredTaxLiabilitiesUnrealizedGainsOnAvailableForSaleSecurities

hp:DeferredTaxLiabilitiesUnrealizedGainsOnAvailableForSaleSecurities


Deferred
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-30
Value1.9570.01024253383117154119107
Percentage of DeferredTaxLiabilitiesUnrealizedGainsOnAvailableForSaleSecurities100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

hp:DefinedBenefitPlanExpectedFutureBenefitPaymentsTotal

hp:DefinedBenefitPlanExpectedFutureBenefitPaymentsTotal


Defined
Period End2020-09-30
Value67
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsTotal100.0

hp:DicomFloatingRate

hp:DicomFloatingRate


Dicom
Period End2020-12-312020-09-302019-12-312019-09-302018-09-30
Value1107200.0436680.046621.021028.062.0
Percentage of DicomFloatingRate100.0100.0100.0100.0100.0

hp:LesseeOperatingLeaseLiabilitytobePaidIncludingProbableLeaseExtensionOptions

hp:LesseeOperatingLeaseLiabilitytobePaidIncludingProbableLeaseExtensionOptions


Lessee
Period End2020-09-302019-10-01
Value4862
Percentage of LesseeOperatingLeaseLiabilitytobePaidIncludingProbableLeaseExtensionOptions100.0100.0

hp:LineOfCreditFacilityBorrowingCapacityExpired us-gaap:DebtInstrument, us-gaap:SubsequentEventType

hp:LineOfCreditFacilityBorrowingCapacityExpired

hp:UnsecuredStandaloneLineOfCreditFacility, us-gaap:SubsequentEvent


Line
Period End2020-11-12
Value2600000.0
Percentage of LineOfCreditFacilityBorrowingCapacityExpired100.0

hp:OperatingLeaseLiabilityIncludingShortTermCommitment

hp:OperatingLeaseLiabilityIncludingShortTermCommitment


Operating
Period End2020-09-302020-06-302020-03-312019-12-312019-10-01
Value4653495257
Percentage of OperatingLeaseLiabilityIncludingShortTermCommitment100.0100.0100.0100.0100.0

hp:OtherAssetsNoncurrentFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

hp:OtherAssetsNoncurrentFairValueDisclosure

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value2985000.03286000.03336000.03386000.03687000.03737000.03788000.03832000.03882000.02000000.0
Percentage of OtherAssetsNoncurrentFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

hp:OtherAssetsNoncurrentFairValueDisclosure us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value2985000.03286000.03336000.03386000.03687000.03737000.03788000.03832000.03882000.0
Percentage of OtherAssetsNoncurrentFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0

hp:OtherCurrentAssetsFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

hp:OtherCurrentAssetsFairValueDisclosure

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value454546403531303030393438383232282827262837373636363530302527247.35611364849502321
Percentage of OtherCurrentAssetsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

hp:OtherCurrentAssetsFairValueDisclosure us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312017-06-302017-03-31
Value4545464035313030303438383228
Percentage of OtherCurrentAssetsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.8100.9

hp:PrepaidMaintenanceAndRent

hp:PrepaidMaintenanceAndRent


Prepaid
Period End2020-09-302019-09-302018-09-302017-09-30
Value7273000.09113000.08526000.05940000.0
Percentage of PrepaidMaintenanceAndRent100.0100.0100.0100.0

hp:PrepaidValueAddedTax

hp:PrepaidValueAddedTax


Prepaid
Period End2020-09-302019-09-302018-09-302017-09-302016-09-30
Value7484000.05209000.01931000.03870000.01407000.0
Percentage of PrepaidValueAddedTax100.0100.0100.0100.0100.0

hp:RestrictedCashAndCashEquivalentsAtElectionOfManagementForPotentialInsuranceClaims

hp:RestrictedCashAndCashEquivalentsAtElectionOfManagementForPotentialInsuranceClaims


Restricted
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-09-30
Value4343463933302929292827
Percentage of RestrictedCashAndCashEquivalentsAtElectionOfManagementForPotentialInsuranceClaims100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

hp:ShortTermInvestmentsFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

hp:ShortTermInvestmentsFairValueDisclosure

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring


Short
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value5.039.8091820272826112222282526241725151817168.7164.823
Percentage of ShortTermInvestmentsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Short
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value144794625292418141819151915192222292631283840
Percentage of ShortTermInvestmentsFairValueDisclosure2878.6810.7248.8126.9108.086.670.4128.380.984.752.874.758.679.0129.090.6185.0144.3179.2173.2447.4844.3

hp:ShortTermInvestmentsFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring, hp:OtherCashAndCashEquivalents


Short
Period End2020-09-30
Value1.992
Percentage of ShortTermInvestmentsFairValueDisclosure20.3

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring, us-gaap:USGovernmentCorporationsAndAgenciesSecurities


Short
Period End2020-12-312020-09-30
Value5.037.817
Percentage of ShortTermInvestmentsFairValueDisclosure100.079.7

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:CertificatesOfDeposit


Short
Period End2020-12-312020-09-30
Value0.0121.37
Percentage of ShortTermInvestmentsFairValueDisclosure0.214.0

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:CorporateDebtSecurities


Short
Period End2020-12-312020-09-30
Value14478
Percentage of ShortTermInvestmentsFairValueDisclosure2878.3796.8

hp:ShortTermInvestmentsFairValueDisclosure us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Short
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312017-06-302017-03-31
Value14989654557524526414445423948
Percentage of ShortTermInvestmentsFairValueDisclosure2978.6910.7348.8226.9208.0186.6170.4228.3180.9152.8174.7158.6229.0190.6

hp:ShortTermInvestmentsFairValueDisclosure us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument

us-gaap:FairValueMeasurementsRecurring, hp:OtherCashAndCashEquivalents


Short
Period End2020-09-30
Value1.992
Percentage of ShortTermInvestmentsFairValueDisclosure20.3

us-gaap:FairValueMeasurementsRecurring, us-gaap:CertificatesOfDeposit


Short
Period End2020-12-312020-09-30
Value0.0121.37
Percentage of ShortTermInvestmentsFairValueDisclosure0.214.0

us-gaap:FairValueMeasurementsRecurring, us-gaap:CorporateDebtSecurities


Short
Period End2020-12-312020-09-30
Value14478
Percentage of ShortTermInvestmentsFairValueDisclosure2878.3796.8

us-gaap:FairValueMeasurementsRecurring, us-gaap:USGovernmentCorporationsAndAgenciesSecurities


Short
Period End2020-12-312020-09-30
Value5.037.817
Percentage of ShortTermInvestmentsFairValueDisclosure100.079.7

hp:TemporaryReductionInOilProductionNumberOfBarrels

hp:TemporaryReductionInOilProductionNumberOfBarrels


Temporary
Period End2020-07-152020-06-30
Value7700000.09700000.0
Percentage of TemporaryReductionInOilProductionNumberOfBarrels100.0100.0

hp:UnrecognizedTaxBenefitFromDiscontinuedOperationsThatWouldNotImpactEffectiveTaxRate

hp:UnrecognizedTaxBenefitFromDiscontinuedOperationsThatWouldNotImpactEffectiveTaxRate


Unrecognized
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-30
Value1315143.73.82.92.90.1
Percentage of UnrecognizedTaxBenefitFromDiscontinuedOperationsThatWouldNotImpactEffectiveTaxRate100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccrualForTaxesOtherThanIncomeTaxesCurrent

us-gaap:AccrualForTaxesOtherThanIncomeTaxesCurrent


Accrual
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-30
Value3950503531384238353744
Percentage of AccrualForTaxesOtherThanIncomeTaxesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivable us-gaap:CumulativeEffectPeriodOfAdoption

us-gaap:AllowanceForDoubtfulAccountsReceivable

srt:CumulativeEffectPeriodOfAdoptionAdjustment


Allowance
Period End2020-10-01
Value1600000.0
Percentage of AllowanceForDoubtfulAccountsReceivable100.0

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent


Allowance
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302009-09-302008-09-30
Value1618000.01820000.04699000.03108000.04037000.09927000.04837000.04395000.06230000.06217000.05786000.05726000.05666000.05721000.06352000.06397000.05016000.02696000.01828000.05148000.06167000.06181000.04592000.04592000.04597000.04597000.04601000.04601000.04795000.04795000.04697000.04715000.0944000.0942000.0747000.0746000.0745000.0776000.0761000.0761000.0831000.0830000.0659000.01331000.0
Percentage of AllowanceForDoubtfulAccountsReceivableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AociBeforeTaxAttributableToParent us-gaap:StatementEquityComponents

us-gaap:AociBeforeTaxAttributableToParent

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Aoci
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-09-302017-09-30
Value-33.333-33.923-35.078-35.746-36.415-37.084-21.693-28.873
Percentage of AociBeforeTaxAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedOtherComprehensiveIncome


Aoci
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-09-302017-09-30
Value-33.333-33.923-35.078-35.746-36.415-37.084222.827
Percentage of AociBeforeTaxAttributableToParent100.0100.0100.0100.0100.0100.0-102.9-9.8

us-gaap:AssetsFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:AssetsFairValueDisclosure

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring


Assets
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value437553503406440427428335324431454464524655692871963102410401016969854955908443620847889909782784675687568565803784722748
Percentage of AssetsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Assets
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value1458347252924191418191519151922232926322939400.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.25
Percentage of AssetsFairValueDisclosure33.115.19.46.46.85.84.54.55.74.43.44.23.03.03.32.63.12.63.12.94.04.80.00.00.10.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring


Assets
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value1.50.50.00.00.00.00.0
Percentage of AssetsFairValueDisclosure0.30.10.00.00.00.00.0

us-gaap:AssetsFairValueDisclosure us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Assets
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312017-06-302017-03-31
Value584637550432470452447350343470483540715894
Percentage of AssetsFairValueDisclosure133.5115.2109.4106.4106.8105.8104.5104.5105.7103.4104.2103.0103.3102.6

us-gaap:AssetsNoncurrentOtherThanNoncurrentInvestmentsAndPropertyPlantAndEquipment

us-gaap:AssetsNoncurrentOtherThanNoncurrentInvestmentsAndPropertyPlantAndEquipment


Assets
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-09-302016-09-30
Value18718819219623919014914914614311929
Percentage of AssetsNoncurrentOtherThanNoncurrentInvestmentsAndPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessCombinationContingentConsiderationLiability us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:ValuationTechnique

us-gaap:BusinessCombinationContingentConsiderationLiability

us-gaap:FairValueInputsLevel3, hp:ValuationTechniqueMonteCarloSimulation


Business
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value1.01.01.00.56.06.0
Percentage of BusinessCombinationContingentConsiderationLiability100.0100.0100.0100.0100.0100.0

us-gaap:FairValueInputsLevel3, hp:ValuationTechniqueProbabilityAnalysis


Business
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value7.9738.12311111312
Percentage of BusinessCombinationContingentConsiderationLiability797.3812.31172.32264.6231.2206.2

us-gaap:BusinessCombinationContingentConsiderationLiabilityCurrent

us-gaap:BusinessCombinationContingentConsiderationLiabilityCurrent


Business
Period End2020-09-302019-09-302018-09-30
Value4926000.05535000.00
Percentage of BusinessCombinationContingentConsiderationLiabilityCurrent100.0100.00.0

us-gaap:BusinessCombinationContingentConsiderationLiabilityMeasurementInput us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:MeasurementInputType, us-gaap:ValuationTechnique

us-gaap:BusinessCombinationContingentConsiderationLiabilityMeasurementInput

us-gaap:FairValueInputsLevel3, hp:MeasurementInputRevenueVolatility, hp:ValuationTechniqueMonteCarloSimulation


Business
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value46.746.20.3460.3060.2440.244
Percentage of BusinessCombinationContingentConsiderationLiabilityMeasurementInput100.0100.0100.0100.0100.0100.0

us-gaap:FairValueInputsLevel3, us-gaap:MeasurementInputDiscountRate, hp:ValuationTechniqueMonteCarloSimulation


Business
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value1.11.60.020.0450.0280.028
Percentage of BusinessCombinationContingentConsiderationLiabilityMeasurementInput2.43.55.814.711.511.5

us-gaap:FairValueInputsLevel3, us-gaap:MeasurementInputDiscountRate, hp:ValuationTechniqueProbabilityAnalysis


Business
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value1.01.00.010.050.030.03
Percentage of BusinessCombinationContingentConsiderationLiabilityMeasurementInput2.12.22.916.312.312.3

us-gaap:FairValueInputsLevel3, us-gaap:MeasurementInputRiskFreeInterestRate, hp:ValuationTechniqueMonteCarloSimulation


Business
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value1.41.20.0120.0120.0190.019
Percentage of BusinessCombinationContingentConsiderationLiabilityMeasurementInput3.02.63.53.97.87.8

us-gaap:BusinessCombinationContingentConsiderationLiabilityMeasurementInput us-gaap:Range, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:MeasurementInputType, us-gaap:ValuationTechnique

srt:Maximum, us-gaap:FairValueInputsLevel3, hp:MeasurementInputProbability, hp:ValuationTechniqueProbabilityAnalysis


Business
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value60.00.60.60.60.540.54
Percentage of BusinessCombinationContingentConsiderationLiabilityMeasurementInput128.51.3173.4196.1221.3221.3

srt:Minimum, us-gaap:FairValueInputsLevel3, hp:MeasurementInputProbability, hp:ValuationTechniqueProbabilityAnalysis


Business
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value40.00.40.40.40.40.4
Percentage of BusinessCombinationContingentConsiderationLiabilityMeasurementInput85.70.9115.6130.7163.9163.9

srt:WeightedAverage, us-gaap:FairValueInputsLevel3, hp:MeasurementInputProbability, hp:ValuationTechniqueProbabilityAnalysis


Business
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value53.053.00.530.530.470.47
Percentage of BusinessCombinationContingentConsiderationLiabilityMeasurementInput113.5114.7153.2173.2192.6192.6

us-gaap:BusinessCombinationContingentConsiderationLiabilityNoncurrent

us-gaap:BusinessCombinationContingentConsiderationLiabilityNoncurrent


Business
Period End2020-09-302019-09-302018-09-302017-09-30
Value4.197121114
Percentage of BusinessCombinationContingentConsiderationLiabilityNoncurrent100.0100.0100.0100.0

us-gaap:BusinessCombinationContingentConsiderationLiabilityNoncurrent us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring


Business
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value8.9739.123121119189.5559.01512119.4021517
Percentage of BusinessCombinationContingentConsiderationLiabilityNoncurrent0.0217.40.00.00.0143.10.00.00.0100.00.00.00.0

us-gaap:BusinessCombinationContingentConsiderationLiabilityNoncurrent us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Business
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-31
Value8.9739.123121119189.5559.015129.4021517
Percentage of BusinessCombinationContingentConsiderationLiabilityNoncurrent0.0217.40.00.00.0143.10.00.00.00.00.00.0

us-gaap:CapitalizedContractCostNet

us-gaap:CapitalizedContractCostNet


Capitalized
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value5.86.26.39.91413
Percentage of CapitalizedContractCostNet100.0100.0100.0100.0100.0100.0

us-gaap:CashAndCashEquivalentsFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:CashAndCashEquivalentsFairValueDisclosure

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring


Cash
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value37348742633635534733424322828430633438352157274182590590789884871777071925136054958458144748017224196148324347364288
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashAndCashEquivalentsFairValueDisclosure us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Cash
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312017-06-302017-03-31
Value373487426336355347334243228306334383572741
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashCashEquivalentsAndShortTermInvestments

us-gaap:CashCashEquivalentsAndShortTermInvestments


Cash
Period End2020-12-312020-09-30
Value523577
Percentage of CashCashEquivalentsAndShortTermInvestments100.0100.0

us-gaap:ContractWithCustomerAssetNet

us-gaap:ContractWithCustomerAssetNet


Contract
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value3389000.02367000.02337000.02270000.03024000.02151000.01551000.03191000.03058000.02600000.0
Percentage of ContractWithCustomerAssetNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiability

us-gaap:ContractWithCustomerLiability


Contract
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value8.1548.6361012252320241930
Percentage of ContractWithCustomerLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentCarryingAmount

us-gaap:DebtInstrumentCarryingAmount


Debt
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-09-30
Value48748748748748748750050050050050050050050050050054054054054058058080
Percentage of DebtInstrumentCarryingAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentCarryingAmount us-gaap:DebtInstrument

hp:UnsecuredSeniorNotesIssued2015


Debt
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value487487487487487487500500500500500500500500500500500500500500500500
Percentage of DebtInstrumentCarryingAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.092.692.692.692.686.286.2

us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet

us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet


Debt
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-30
Value5961000.06421000.06879000.07337000.07793000.07792000.06032000.06300000.06567000.06832000.07098000.07363000.07627000.08153000.0
Percentage of DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredCompensationPlanAssets us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:DeferredCompensationPlanAssets

us-gaap:FairValueInputsLevel1


Deferred
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value221916131615151415161515141313131313121211121313121414131110
Percentage of DeferredCompensationPlanAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredIncomeTaxLiabilities


Deferred
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-30
Value7138839271433134212771198
Percentage of DeferredIncomeTaxLiabilities100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsGross


Deferred
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-30
Value9912012315816714912012112311799
Percentage of DeferredTaxAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsForeign

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsForeign


Deferred
Period End2020-09-30
Value11
Percentage of DeferredTaxAssetsOperatingLossCarryforwardsForeign100.0

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsOther


Deferred
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-30
Value152.5314.8886.0034.952128.3327.4876.5333.2243.456
Percentage of DeferredTaxAssetsOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxCreditCarryforwardsForeign

us-gaap:DeferredTaxAssetsTaxCreditCarryforwardsForeign


Deferred
Period End2020-09-302019-09-30
Value1920
Percentage of DeferredTaxAssetsTaxCreditCarryforwardsForeign100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions


Deferred
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-30
Value7.3697.3243.4777.6148.333.4051.372.1469.4821415
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost


Deferred
Period End2020-09-30
Value4900000.0
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsSelfInsurance

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsSelfInsurance


Deferred
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-30
Value101413191514108.3577.7378.3444.249
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsSelfInsurance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesOther


Deferred
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-30
Value261512212.3263.9280.0670.0550.0040.0620.136
Percentage of DeferredTaxLiabilitiesOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment


Deferred
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-30
Value685867904138614111334118711611103898703
Percentage of DeferredTaxLiabilitiesPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPensionPlanLiabilitiesNoncurrent

us-gaap:DefinedBenefitPensionPlanLiabilitiesNoncurrent


Defined
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-30
Value5451353739282523405051
Percentage of DefinedBenefitPensionPlanLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation

us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation


Defined
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-30
Value116119106109109107111102112104102
Percentage of DefinedBenefitPlanAccumulatedBenefitObligation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax


Defined
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302013-09-302012-09-302011-09-302010-09-30
Value333721-28.873-34.11219374338
Percentage of DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanAmountsRecognizedInBalanceSheet

us-gaap:DefinedBenefitPlanAmountsRecognizedInBalanceSheet


Defined
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-30
Value-30043000.0-28703000.0-11308000.0-17160000.0-18983000.0-9357000.0-2951000.0-5862000.0-25344000.0-37627000.0-40709000.0
Percentage of DefinedBenefitPlanAmountsRecognizedInBalanceSheet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate


Defined
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-302009-09-30
Value2.660.03160.04270.03790.03640.04270.04320.0480.04060.04330.04480.0542
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanBenefitObligation

us-gaap:DefinedBenefitPlanBenefitObligation


Defined
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-302009-09-30
Value11611910610910910711110211210410289
Percentage of DefinedBenefitPlanBenefitObligation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanExpectedAmortizationOfGainLossNextFiscalYear

us-gaap:DefinedBenefitPlanExpectedAmortizationOfGainLossNextFiscalYear


Defined
Period End2020-09-30
Value-2400000.0
Percentage of DefinedBenefitPlanExpectedAmortizationOfGainLossNextFiscalYear100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter


Defined
Period End2020-09-30
Value33
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths


Defined
Period End2020-09-30
Value5931000.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive


Defined
Period End2020-09-30
Value7141000.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour


Defined
Period End2020-09-30
Value7023000.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree


Defined
Period End2020-09-30
Value6980000.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo


Defined
Period End2020-09-30
Value6910000.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo100.0

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets


Defined
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-302009-09-30
Value8691949290981089686676157
Percentage of DefinedBenefitPlanFairValueOfPlanAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets us-gaap:DefinedBenefitPlanByPlanAssetCategories, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis

us-gaap:BalancedFunds, us-gaap:FairValueInputsLevel1, us-gaap:EstimateOfFairValueFairValueDisclosure


Defined
Period End2020-09-302019-09-302018-09-30
Value171717
Percentage of DefinedBenefitPlanFairValueOfPlanAssets20.319.618.9

us-gaap:Bonds, us-gaap:FairValueInputsLevel1, us-gaap:EstimateOfFairValueFairValueDisclosure


Defined
Period End2020-09-302019-09-302018-09-30
Value171817
Percentage of DefinedBenefitPlanFairValueOfPlanAssets20.119.818.9

us-gaap:MutualFund, us-gaap:FairValueInputsLevel1, us-gaap:EstimateOfFairValueFairValueDisclosure


Defined
Period End2020-09-302019-09-302018-09-30
Value846768
Percentage of DefinedBenefitPlanFairValueOfPlanAssets98.174.272.5

us-gaap:OilAndGasProperties, us-gaap:FairValueInputsLevel3, us-gaap:EstimateOfFairValueFairValueDisclosure


Defined
Period End2020-09-302019-09-302018-09-30
Value0.0830.1610.116
Percentage of DefinedBenefitPlanFairValueOfPlanAssets0.10.20.1

us-gaap:PrivateEquityFundsDomestic, us-gaap:FairValueInputsLevel1, us-gaap:EstimateOfFairValueFairValueDisclosure


Defined
Period End2020-09-302019-09-302018-09-30
Value351718
Percentage of DefinedBenefitPlanFairValueOfPlanAssets41.419.319.3

us-gaap:PrivateEquityFundsForeign, us-gaap:FairValueInputsLevel1, us-gaap:EstimateOfFairValueFairValueDisclosure


Defined
Period End2020-09-302019-09-302018-09-30
Value141414
Percentage of DefinedBenefitPlanFairValueOfPlanAssets16.315.615.3

us-gaap:ShortTermInvestments, us-gaap:FairValueInputsLevel1, us-gaap:EstimateOfFairValueFairValueDisclosure


Defined
Period End2020-09-302019-09-302018-09-30
Value1.5413.0722.745
Percentage of DefinedBenefitPlanFairValueOfPlanAssets1.83.42.9

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets us-gaap:DefinedBenefitPlanByPlanAssetCategories, us-gaap:FairValueByMeasurementBasis

us-gaap:BalancedFunds, us-gaap:EstimateOfFairValueFairValueDisclosure


Defined
Period End2020-09-302019-09-302018-09-302017-09-30
Value17171718
Percentage of DefinedBenefitPlanFairValueOfPlanAssets20.319.618.919.6

us-gaap:Bonds, us-gaap:EstimateOfFairValueFairValueDisclosure


Defined
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-30
Value1718171822252423
Percentage of DefinedBenefitPlanFairValueOfPlanAssets20.119.818.919.825.125.822.924.5

us-gaap:MutualFund, us-gaap:EstimateOfFairValueFairValueDisclosure


Defined
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-30
Value846768697078
Percentage of DefinedBenefitPlanFairValueOfPlanAssets98.174.272.574.977.479.6

us-gaap:OilAndGasProperties, us-gaap:EstimateOfFairValueFairValueDisclosure


Defined
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-30
Value0.0830.1610.1160.0970.1770.3870.3010.287
Percentage of DefinedBenefitPlanFairValueOfPlanAssets0.10.20.10.10.20.40.30.3

us-gaap:PrivateEquityFundsDomestic, us-gaap:EstimateOfFairValueFairValueDisclosure


Defined
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-30
Value3517181836405544
Percentage of DefinedBenefitPlanFairValueOfPlanAssets41.419.319.319.839.840.950.945.6

us-gaap:PrivateEquityFundsForeign, us-gaap:EstimateOfFairValueFairValueDisclosure


Defined
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-30
Value1414141411128.73112
Percentage of DefinedBenefitPlanFairValueOfPlanAssets16.315.615.315.712.512.98.112.9

us-gaap:ShortTermInvestments, us-gaap:EstimateOfFairValueFairValueDisclosure


Defined
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-30
Value1.5413.0722.7453.4880.4672.2482.251.983
Percentage of DefinedBenefitPlanFairValueOfPlanAssets1.83.42.93.80.52.32.12.0

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueInputsLevel3


Defined
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-30
Value0.0830.1610.1160.0970.1770.3870.3010.2870.2990.275
Percentage of DefinedBenefitPlanFairValueOfPlanAssets0.10.20.10.10.20.40.30.30.30.4

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis

us-gaap:FairValueInputsLevel1, us-gaap:EstimateOfFairValueFairValueDisclosure


Defined
Period End2020-09-302019-09-302018-09-30
Value868892
Percentage of DefinedBenefitPlanFairValueOfPlanAssets99.997.197.3

us-gaap:FairValueInputsLevel3, us-gaap:EstimateOfFairValueFairValueDisclosure


Defined
Period End2020-09-302019-09-302018-09-30
Value0.0830.1610.116
Percentage of DefinedBenefitPlanFairValueOfPlanAssets0.10.20.1

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets us-gaap:FairValueByMeasurementBasis

us-gaap:EstimateOfFairValueFairValueDisclosure


Defined
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-30
Value86919492909810896
Percentage of DefinedBenefitPlanFairValueOfPlanAssets100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanFundedStatusOfPlan

us-gaap:DefinedBenefitPlanFundedStatusOfPlan


Defined
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-30
Value-30043000.0-28703000.0-11308000.0-17160000.0-18983000.0-9357000.0-2951000.0-5862000.0-25344000.0-37627000.0-40709000.0
Percentage of DefinedBenefitPlanFundedStatusOfPlan100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanWeightedAverageAssetAllocations

us-gaap:DefinedBenefitPlanWeightedAverageAssetAllocations


Defined
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-30
Value100.01.01.01.01.01.01.01.01.01.01.0
Percentage of DefinedBenefitPlanWeightedAverageAssetAllocations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanWeightedAverageAssetAllocations us-gaap:DefinedBenefitPlanByPlanAssetCategories

us-gaap:DefinedBenefitPlanEquitySecuritiesNonUs


Defined
Period End2020-09-302019-09-302018-09-30
Value22.00.160.15
Percentage of DefinedBenefitPlanWeightedAverageAssetAllocations22.016.015.0

us-gaap:DefinedBenefitPlanEquitySecuritiesUs


Defined
Period End2020-09-302019-09-302018-09-30
Value42.00.470.52
Percentage of DefinedBenefitPlanWeightedAverageAssetAllocations42.047.052.0

us-gaap:FixedIncomeFunds


Defined
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-30
Value36.00.370.330.340.210.230.250.270.250.3
Percentage of DefinedBenefitPlanWeightedAverageAssetAllocations36.037.033.034.021.023.025.027.025.030.0

us-gaap:DepositLiabilityCurrent

us-gaap:DepositLiabilityCurrent


Deposit
Period End2020-09-302019-09-302018-09-302017-09-30
Value0.1381.388114.69
Percentage of DepositLiabilityCurrent100.0100.0100.0100.0

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeRelatedLiabilitiesCurrent


Employee
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-30
Value2779805443358871524333
Percentage of EmployeeRelatedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions us-gaap:AwardType

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions

us-gaap:PerformanceShares


Employee
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value146.68.511134.76.17.5
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedStock


Employee
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value4131384957344149
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions284.9475.8456.5428.4425.0742.6685.2653.3

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions us-gaap:AwardType

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions

us-gaap:EmployeeStockOption


Employee
Period End2020-12-312020-09-30
Value900000.01200000.0
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions100.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue

us-gaap:FairValueInputsLevel3


Fair
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value8.9739.123121119189.5559.01512119.40215171414
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization


Finite
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value211917151412109.3697.9316.4935.0553.6181.9831.134
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CustomerRelationships


Finite
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2.4672.2672.0671.8671.6671.4671.2671.0670.8670.6670.4670.267
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization11.611.711.711.711.812.011.711.410.910.39.27.4

us-gaap:DevelopedTechnologyRights


Finite
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value1716141311109.0897.9226.7555.5894.4223.2561.9831.134
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization83.483.583.683.783.883.884.184.685.286.187.590.0100.0100.0

us-gaap:IntellectualProperty


Finite
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value0.1310.1030.0750.0470.0190.0
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization0.60.50.40.30.10.0

us-gaap:TradeNames


Finite
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.9210.8420.7630.6830.6050.5220.4510.380.3090.2370.1660.095
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization4.34.34.34.34.34.34.24.13.93.73.32.6

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths


Finite
Period End2020-12-312020-09-302017-09-30
Value5400000.07200000.03400000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsGross

us-gaap:FiniteLivedIntangibleAssetsGross


Finite
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value100100100100100987979797979797951
Percentage of FiniteLivedIntangibleAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsGross us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:DevelopedTechnologyRights


Finite
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value8989898989897070707070707051
Percentage of FiniteLivedIntangibleAssetsGross88.788.788.788.788.790.087.987.987.987.887.887.887.8100.0

us-gaap:IntellectualProperty


Finite
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value1.51.51.51.51.50.0
Percentage of FiniteLivedIntangibleAssetsGross1.51.51.51.51.50.0

us-gaap:TradeNames


Finite
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value5.8655.8655.8655.8655.8655.8655.75.75.75.75.75.75.7
Percentage of FiniteLivedIntangibleAssetsGross5.85.85.85.85.85.97.17.17.17.27.27.27.2

us-gaap:IncomeTaxReceivable

us-gaap:IncomeTaxReceivable


Income
Period End2020-09-302019-09-302018-09-302017-09-302016-09-30
Value4233347837
Percentage of IncomeTaxReceivable100.0100.0100.0100.0100.0

us-gaap:InventoryValuationReserves

us-gaap:InventoryValuationReserves


Inventory
Period End2020-09-302019-09-302018-09-302017-09-30
Value36119.99.2
Percentage of InventoryValuationReserves100.0100.0100.0100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths


Lessee
Period End2020-09-30
Value11
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths100.0

us-gaap:LessorOperatingLeasePaymentsToBeReceived

us-gaap:LessorOperatingLeasePaymentsToBeReceived


Lessor
Period End2020-09-30
Value24
Percentage of LessorOperatingLeasePaymentsToBeReceived100.0

us-gaap:LessorOperatingLeasePaymentsToBeReceivedFiveYears

us-gaap:LessorOperatingLeasePaymentsToBeReceivedFiveYears


Lessor
Period End2020-09-30
Value2350000.0
Percentage of LessorOperatingLeasePaymentsToBeReceivedFiveYears100.0

us-gaap:LessorOperatingLeasePaymentsToBeReceivedFourYears

us-gaap:LessorOperatingLeasePaymentsToBeReceivedFourYears


Lessor
Period End2020-09-30
Value2975000.0
Percentage of LessorOperatingLeasePaymentsToBeReceivedFourYears100.0

us-gaap:LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths

us-gaap:LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths


Lessor
Period End2020-09-30
Value5512000.0
Percentage of LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths100.0

us-gaap:LessorOperatingLeasePaymentsToBeReceivedThereafter

us-gaap:LessorOperatingLeasePaymentsToBeReceivedThereafter


Lessor
Period End2020-09-30
Value5358000.0
Percentage of LessorOperatingLeasePaymentsToBeReceivedThereafter100.0

us-gaap:LessorOperatingLeasePaymentsToBeReceivedThreeYears

us-gaap:LessorOperatingLeasePaymentsToBeReceivedThreeYears


Lessor
Period End2020-09-30
Value3564000.0
Percentage of LessorOperatingLeasePaymentsToBeReceivedThreeYears100.0

us-gaap:LessorOperatingLeasePaymentsToBeReceivedTwoYears

us-gaap:LessorOperatingLeasePaymentsToBeReceivedTwoYears


Lessor
Period End2020-09-30
Value4553000.0
Percentage of LessorOperatingLeasePaymentsToBeReceivedTwoYears100.0

us-gaap:LettersOfCreditOutstandingAmount us-gaap:CreditFacility, us-gaap:DebtInstrument

us-gaap:LettersOfCreditOutstandingAmount

us-gaap:LetterOfCredit, hp:BilateralLineOfCreditWithBankThree


Letters
Period End2020-12-31
Value2.1
Percentage of LettersOfCreditOutstandingAmount100.0

us-gaap:LetterOfCredit, hp:BilateralLineOfCreditWithBankTwo


Letters
Period End2020-12-312020-06-302020-03-312019-12-31
Value0.52.12.12.1
Percentage of LettersOfCreditOutstandingAmount23.80.00.00.0

us-gaap:LineOfCredit, hp:BilateralLineOfCreditWithBankOne


Letters
Period End2020-09-302019-09-30
Value2425
Percentage of LettersOfCreditOutstandingAmount0.00.0

us-gaap:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent

us-gaap:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent


Liabilities
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value5.874131515151514143.6331414144.474.0123.2254.6544.3563.893.9844.115.1394.724.4284.1774.2213.9893.7863.6380.5070.4950.4910.4262.5832.492.4222.3642.6062.552.4612.3932.3222.278
Percentage of LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilityForUncertainTaxPositionsNoncurrent

us-gaap:LiabilityForUncertainTaxPositionsNoncurrent


Liability
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-30
Value2.8952.5442.873.56212171312129.8296.755
Percentage of LiabilityForUncertainTaxPositionsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LineOfCredit us-gaap:DebtInstrument

us-gaap:LineOfCredit

hp:UnsecuredStandaloneLineOfCreditFacility


Line
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-03-31
Value1.84.31414140.0
Percentage of LineOfCredit100.0100.0100.0100.0100.00.0

us-gaap:LongTermDebtFairValue us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:LongTermDebtFairValue

us-gaap:FairValueInputsLevel2


Long
Period End2020-12-312020-09-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-09-302011-12-312011-09-302011-06-302010-09-30
Value54353449453252653050750950951652152752952956953354055359259782842012032002052520.36740.37690.37660.3829
Percentage of LongTermDebtFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LongTermDebtFairValue us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis

us-gaap:FairValueInputsLevel2, us-gaap:EstimateOfFairValueFairValueDisclosure


Long
Period End2020-09-302019-09-302018-09-302017-09-302017-06-302017-03-312016-09-302015-09-302014-09-30
Value53452650952952752352955384
Percentage of LongTermDebtFairValue100.0100.0100.0100.00.00.0100.0100.0100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive


Long
Period End2020-09-30
Value487
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive100.0

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent


Operating
Period End2020-09-302020-06-302020-03-312019-12-312019-10-01
Value2.70.0260.0290.0290.029
Percentage of OperatingLeaseWeightedAverageDiscountRatePercent100.0100.0100.0100.0100.0

us-gaap:OperatingLossCarryforwards us-gaap:IncomeTaxAuthority

us-gaap:OperatingLossCarryforwards

us-gaap:DomesticCountry


Operating
Period End2020-09-302019-09-302018-09-302017-09-30
Value7.38.95012
Percentage of OperatingLossCarryforwards100.0100.0100.0100.0

us-gaap:ForeignCountry


Operating
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-30
Value39628377942024353429
Percentage of OperatingLossCarryforwards546.6696.6164.8617.50.00.00.00.00.00.0

us-gaap:StateAndLocalJurisdiction


Operating
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-30
Value25143129116.27.4152110
Percentage of OperatingLossCarryforwards352.1162.961.4237.30.00.00.00.00.00.0

us-gaap:OtherSundryLiabilitiesNoncurrent

us-gaap:OtherSundryLiabilitiesNoncurrent


Other
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-30
Value1630000.02007000.02407000.08253000.04085000.04635000.08272000.07048000.07552000.07849000.05034000.0
Percentage of OtherSundryLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities


Pension
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-30
Value18000.050000.058000.045000.045000.044000.062000.0145000.095000.068000.0181000.0
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PrepaidInsurance

us-gaap:PrepaidInsurance


Prepaid
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-30
Value8.6555.5566.1494.064.3546.572131415109.196
Percentage of PrepaidInsurance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PurchaseObligation

us-gaap:PurchaseObligation


Purchase
Period End2020-12-312020-09-30
Value162.7
Percentage of PurchaseObligation100.0100.0

us-gaap:RealEstateHeldforsale

us-gaap:RealEstateHeldforsale


Real
Period End2020-09-30
Value13
Percentage of RealEstateHeldforsale100.0

us-gaap:RealEstateInvestmentPropertyAccumulatedDepreciation

us-gaap:RealEstateInvestmentPropertyAccumulatedDepreciation


Real
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-30
Value2743424240434241403939
Percentage of RealEstateInvestmentPropertyAccumulatedDepreciation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RealEstateInvestmentPropertyAtCost

us-gaap:RealEstateInvestmentPropertyAtCost


Real
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-30
Value4372696662656463626161
Percentage of RealEstateInvestmentPropertyAtCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RealEstateInvestmentPropertyNet

us-gaap:RealEstateInvestmentPropertyNet


Real
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-30
Value1528262322222221212122
Percentage of RealEstateInvestmentPropertyNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedCashAndCashEquivalents

us-gaap:RestrictedCashAndCashEquivalents


Restricted
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-30
Value4848504439353434344141453929323025311814
Percentage of RestrictedCashAndCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedCashAndCashEquivalents us-gaap:BalanceSheetLocation

us-gaap:OtherNoncurrentAssets


Restricted
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-09-30
Value2.9853.2863.3363.3863.6873.7373.7883.8323.8822.06.9026.9066.7986.6952.0
Percentage of RestrictedCashAndCashEquivalents6.16.76.77.79.410.711.011.211.44.816.615.20.017.16.8

us-gaap:PrepaidExpensesAndOtherCurrentAssets


Restricted
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-09-30
Value454546403531303030393438383227
Percentage of RestrictedCashAndCashEquivalents93.893.293.392.490.689.489.088.888.795.383.484.70.083.093.3

us-gaap:RestrictedCashAndCashEquivalents us-gaap:BusinessAcquisition

hp:DrillingTechnologyCompaniesAcquisitions


Restricted
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-09-30
Value3.23.61.91.93.53.03.03.03.0119.4
Percentage of RestrictedCashAndCashEquivalents6.67.43.84.38.98.68.78.88.827.024.0

us-gaap:RestrictedCashAndCashEquivalentsAtCarryingValue

us-gaap:RestrictedCashAndCashEquivalentsAtCarryingValue


Restricted
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-30
Value4531393227292823281612
Percentage of RestrictedCashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestructuringReserve us-gaap:RestructuringCostAndReserve

us-gaap:RestructuringReserve

us-gaap:EmployeeSeverance


Restructuring
Period End2020-09-302020-06-302019-09-30
Value551000.07019000.00
Percentage of RestructuringReserve100.0100.00.0

us-gaap:RevenueRemainingPerformanceObligation

us-gaap:RevenueRemainingPerformanceObligation


Revenue
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value52667065083711001200160016001600
Percentage of RevenueRemainingPerformanceObligation100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:SelfInsuranceReserveCurrent

us-gaap:SelfInsuranceReserveCurrent


Self
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-30
Value3637152214108.1187.0285.6115.4524.135
Percentage of SelfInsuranceReserveCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:SelfInsuranceReserveNoncurrent

us-gaap:SelfInsuranceReserveNoncurrent


Self
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-302012-09-302011-09-302010-09-30
Value373739292120131212135.328
Percentage of SelfInsuranceReserveNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber

us-gaap:PerformanceShares


Share
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-30
Value692000.0337000.0359000.0404000.0404000.0145000.0145000.0145000.00
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:RestrictedStock


Share
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-09-302013-09-302012-09-30
Value1443000.01280000.01326000.01436000.01396000.01085000.01090000.01105000.01106000.01001000.01007000.01023000.01027000.0659000.0660000.0639000.0639000.0648000.0670000.0697000.0703000.0668000.0634000.0576000.0430000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber208.5379.8369.4355.4345.5748.3751.7762.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:PerformanceShares


Share
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-30
Value41.5851.0950.2350.3150.3162.6662.6662.660
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:RestrictedStock


Share
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-09-302013-09-302012-09-30
Value37.0849.8149.749.5650.9361.2861.2861.2761.2763.7463.7263.7163.7270.7670.7671.4671.4664.2464.2264.2164.1767.0364.0355.1752.52
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue89.297.598.998.5101.297.897.897.80.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber


Share
Period End2020-12-31
Value2531000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber us-gaap:AwardType

us-gaap:EmployeeStockOption


Share
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-30
Value2516000.02482000.02193000.02167000.02225000.02014000.01884000.03063000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber0.00.00.00.00.00.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice


Share
Period End2020-12-31
Value63.59
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice us-gaap:AwardType

us-gaap:EmployeeStockOption


Share
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-30
Value62.3860.3856.3150.8746.6641.6235.9328.48
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice0.00.00.00.00.00.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber


Share
Period End2020-12-31
Value158000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice


Share
Period End2020-12-31
Value59.28
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice us-gaap:AwardType

us-gaap:EmployeeStockOption


Share
Period End2020-09-30
Value62.63
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice0.0

us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions

us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions


Share
Period End2020-09-302019-09-302018-09-302016-09-302015-09-302014-09-30
Value2515000.02482000.02193000.02225000.02014000.01884000.0
Percentage of ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRange

hp:ExercisePriceRangeOne


Share
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-30
Value462000.0209000.0180000.0714000.01000000.01197000.01108000.01254000.0
Percentage of ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions18.48.48.20.044.959.458.80.0

hp:ExercisePriceRangeThree


Share
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-30
Value412000.01432000.0275000.0405000.0300000.0167000.0202000.0287000.0
Percentage of ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions16.457.712.50.013.58.310.70.0

hp:ExercisePriceRangeTwo


Share
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-30
Value1641000.0468000.01418000.01048000.0925000.0650000.0574000.01522000.0
Percentage of ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions65.218.964.70.041.632.330.50.0

us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions

us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions


Share
Period End2020-09-302019-09-302018-09-302016-09-302015-09-302014-09-30
Value2863000.03238000.03499000.03312000.02776000.02629000.0
Percentage of ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRange

hp:ExercisePriceRangeOne


Share
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-30
Value472000.0209000.0180000.0714000.01000000.01198000.01108000.01254000.0
Percentage of ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions16.56.55.10.030.243.242.10.0

hp:ExercisePriceRangeThree


Share
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-30
Value473000.02032000.0358000.0946000.0633000.0667000.0625000.01083000.0
Percentage of ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions16.562.810.20.019.124.023.80.0

hp:ExercisePriceRangeTwo


Share
Period End2020-09-302019-09-302018-09-302017-09-302016-09-302015-09-302014-09-302013-09-30
Value1918000.0493000.02417000.01618000.01679000.0911000.0896000.01654000.0
Percentage of ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions67.015.269.10.050.732.834.10.0

us-gaap:SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1 us-gaap:AwardType