NOC


Line plots across dimensions of each concept
Tables

Table of contents



us-gaap:CommonStockValue

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted
us-gaap:ChangeInAccountingEstimateByType

us-gaap:Revenues
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ContractWithCustomerBasisOfPricing
us-gaap:ContractWithCustomerBasisOfPricing, us-gaap:StatementBusinessSegments
us-gaap:MajorCustomers
us-gaap:MajorCustomers, us-gaap:StatementBusinessSegments
us-gaap:ProductOrService
us-gaap:StatementGeographical
us-gaap:StatementGeographical, us-gaap:StatementBusinessSegments
us-gaap:ProductOrService
us-gaap:CostOfGoodsAndServicesSold

us-gaap:GeneralAndAdministrativeExpense

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

us-gaap:InterestAndDebtExpense

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeTaxExpenseBenefit

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:NetIncomeLoss
us-gaap:ChangeInAccountingEstimateByType
us-gaap:StatementEquityComponents

us-gaap:Assets

us-gaap:Liabilities

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:AssetsCurrent

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:AccountsReceivableNetCurrent

us-gaap:InventoryNet

us-gaap:OtherAssetsCurrent

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:OtherAssetsNoncurrent

us-gaap:LiabilitiesCurrent

us-gaap:LongTermDebtCurrent

us-gaap:AccountsPayableCurrent

us-gaap:OtherLiabilitiesCurrent

us-gaap:LongTermDebtNoncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:ChangeInAccountingEstimateByType
us-gaap:StatementEquityComponents

us-gaap:DepreciationDepletionAndAmortization

us-gaap:IncreaseDecreaseInInventories

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:ProceedsFromIssuanceOfLongTermDebt

us-gaap:PaymentsForRepurchaseOfCommonStock
us-gaap:DebtInstrument
us-gaap:DebtInstrumentInterestRateStatedPercentage

us-gaap:EffectiveIncomeTaxRateContinuingOperations
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod

us-gaap:ShareBasedCompensation

us-gaap:OperatingLeaseRightOfUseAsset

noc:NetFASnonservicePensionBenefitExpense
us-gaap:ConsolidationItems
noc:NetFASserviceCASpensionadjustment

noc:OtherComprehensiveIncomeLossForeignCurrencyTranslationandTranslationAdjustmentandOtherNetofTax

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CommonStockDividendsPerShareDeclared

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

us-gaap:ContractWithCustomerPerformanceObligationSatisfiedInPreviousPeriod

us-gaap:DeferredIncomeTaxesAndTaxCredits
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanContributionsByEmployer
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanInterestCost
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanServiceCost

us-gaap:DefinedContributionPlanEmployerDiscretionaryContributionAmount
us-gaap:StatementEquityComponents
us-gaap:DividendsCommonStock

us-gaap:EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount

us-gaap:IncomeTaxReconciliationTaxCreditsResearch

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInAccruedIncomeTaxesPayable

us-gaap:IncreaseDecreaseInContractWithCustomerAsset

us-gaap:IncreaseDecreaseInPensionAndPostretirementObligations

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherNoncashIncomeExpense

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProceedsFromRepaymentsOfCommercialPaper

us-gaap:RepaymentsOfLinesOfCredit
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation
us-gaap:ShareRepurchaseProgram
us-gaap:StockRepurchasedAndRetiredDuringPeriodShares
us-gaap:StatementEquityComponents
us-gaap:StockRepurchasedAndRetiredDuringPeriodValue
us-gaap:StatementEquityComponents
us-gaap:StockholdersEquityOther
us-gaap:ShareRepurchaseProgram
us-gaap:TreasuryStockAcquiredAverageCostPerShare
us-gaap:ShareRepurchaseProgram
us-gaap:TreasuryStockSharesRetired

noc:PriorServiceCostTaxExpense

noc:RestrictedStockRightsandRestrictedPerformanceStockRightsGrantDateAggregateFairValue

us-gaap:AccrualForEnvironmentalLossContingencies
us-gaap:BalanceSheetLocation

us-gaap:AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:ContractWithCustomerAssetNetCurrent

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:DebtAndCapitalLeaseObligations

us-gaap:DebtInstrumentFaceAmount
us-gaap:DebtInstrument
us-gaap:Range, us-gaap:AwardType
us-gaap:DeferredCompensationCashbasedArrangementsLiabilityCurrentAndNoncurrent

us-gaap:DeferredIncomeTaxAssetsNet
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:DerivativeAssetsLiabilitiesAtFairValueNet
us-gaap:FairValueByMeasurementFrequency

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:ForeignCurrencyCashFlowHedgeDerivativeAtFairValueNet

us-gaap:ForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue
us-gaap:DebtInstrument
us-gaap:LineOfCredit
us-gaap:DebtInstrument
us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity

us-gaap:LongTermDebtFairValue

us-gaap:LossContingencyRangeOfPossibleLossPortionNotAccrued

us-gaap:MarketableSecurities
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:RecordedThirdPartyEnvironmentalRecoveriesAmount
us-gaap:BalanceSheetLocation

Tables

  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:CommonStockValue ▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▂▂▂▂▂▃▃▃▃▄▄▄▅▅▅▅▆▆▆▆▇██167168169169170171174174174174174174175175177179181181183188195199203209215218224231235239246248252254266278293291NANANA307NANANA
us-gaap:CommonStockSharesIssued ▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▂▂▂▂▂▃▃▃▃▄▄▄▅▅▅▅▆▆▆▆▇██167167168169169170173174174174174174174175176178180181182188195198203209215217223230235239245248252253265277292290NANANA306NANANA
us-gaap:CommonStockSharesOutstanding ▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▂▂▂▂▂▃▃▃▃▄▄▄▅▅▅▅▆▆▆▆▇██167167168169169170173174174174174174174175176178180181182188195198203209215217223230235239245248252253265277292290NANANA306NANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding ▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▂▂▂▂▂▃▃▃▃▄▄▄▄▅▅▅▅▆▆▇▇▇▇███168168169170170172174175175175175175176177179181183184187193200204209215220225232237241248252254258262279287296296297303306NANANANA
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic ▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▂▂▂▂▂▃▃▃▃▄▄▄▄▅▅▅▅▅▆▇▇▇▇███167168169169170171174174174174174174174176178180181182185191197200206212216220228234236243247250253258274282291291293299302NANANANA
us-gaap:EarningsPerShareBasic ▇▁▇▇▇▄█▆▆▄▆▅▆▅▆▅▅▅▅▅▅▅▅▅▅▅▅▅▄▅▄▄▄▅▄▄▄▄▄▅▄▄▄▄▄5.18-2.435.525.075.082.076.573.954.241.023.73.163.662.983.382.873.072.522.782.772.452.522.292.412.682.172.182.092.072.191.861.912.02.121.891.841.821.291.692.371.551.321.551.221.19
us-gaap:EarningsPerShareDiluted ▇▁▇▇▇▅█▆▆▄▆▅▆▅▆▅▅▅▅▅▅▅▅▅▅▅▅▄▄▅▄▄▄▅▄▄▄▄▄▅▄▄▄▄▄5.15-2.435.495.065.062.066.543.934.211.013.683.153.632.963.352.853.032.492.752.742.412.482.262.372.632.122.142.052.032.141.821.881.962.091.861.811.791.271.672.341.531.311.531.211.17
 us-gaap:EarningsPerShareDiluted us-gaap:ChangeInAccountingEstimateByType us-gaap:ContractsAccountedForUnderPercentageOfCompletion▆▂▆█▆█▇▆▅▁▃▃▄▄▄▅▄▄▄▅▆▃▆▅▆▂▇0.580.270.580.730.640.76999999999999980.670.640.520.170000000000000150.380.360.430.39000000000000010.440.490.460.419999999999999930.390.540.610.36000000000000010.60.50.580.28999999999999980.66NANANANANANANANANANANANANANANANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:Revenues ▇█▇▇▆▆▆▄▃▃▃▃▃▃▂▂▂▁▂▁▂▂▂▂▁▂▂▂▂▃▂▂▂▃▃▃▃▇██▇█▇▇▆862087218475845681898156808571196735655265696473641063976155600059565694597958965957610859846039584861576106629461046476627062746198650666126560673486078714882686108925835085457935
 us-gaap:Revenues us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,noc:AeronauticsSystems2843NANANA2818NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,noc:DefenseSystems1881NANANA1768NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,noc:MissionSystems▁█▆▇▅▇▆▅▅▆▅▄▄▇▄▄▄▃▄▃▄234732203029312828863041291128742883297528362781273930802698269026932612272326282711NANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,noc:SpaceSystems1948NANANA1801NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:ContractWithCustomerBasisOfPricing us-gaap:FixedPriceContract███▇▆▇▆▄▂▂▂▁▁4405450643994344411343534127349431173072303728762822NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:ContractWithCustomerBasisOfPricing us-gaap:TimeAndMaterialsContract██▇▇▇▄▆▂▂▁▁▂▂4215421540764112407638033958362536183480353235973588NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:ContractWithCustomerBasisOfPricing,us-gaap:StatementBusinessSegments us-gaap:FixedPriceContract,noc:AeronauticsSystems1474NANANA1482NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:ContractWithCustomerBasisOfPricing,us-gaap:StatementBusinessSegments us-gaap:FixedPriceContract,noc:DefenseSystems1082NANANA978NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:ContractWithCustomerBasisOfPricing,us-gaap:StatementBusinessSegments us-gaap:FixedPriceContract,noc:MissionSystems▃█▅▇▂▇▃▃▂▄▂▁▁1325160414441530129415601372137313201412128812601245NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:ContractWithCustomerBasisOfPricing,us-gaap:StatementBusinessSegments us-gaap:TimeAndMaterialsContract,noc:AeronauticsSystems1343NANANA1312NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:ContractWithCustomerBasisOfPricing,us-gaap:StatementBusinessSegments us-gaap:TimeAndMaterialsContract,noc:SpaceSystems1398NANANA1306NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:MajorCustomers noc:International1335NA1205NA1217NA1099NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:MajorCustomers noc:USGovernment███▇▆▆▆▃▂▂▂▂▁7094716770666944675765696711581657005532554755155375NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:MajorCustomers,us-gaap:StatementBusinessSegments noc:USGovernment,noc:AeronauticsSystems2361NANANA2334NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:MajorCustomers,us-gaap:StatementBusinessSegments noc:USGovernment,noc:DefenseSystems1259NANANA1141NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:MajorCustomers,us-gaap:StatementBusinessSegments noc:USGovernment,noc:MissionSystems▁█▇█▆▇▇▆▆▇▆▇▆1671230422602348216722262232215521902270219322272186NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:MajorCustomers,us-gaap:StatementBusinessSegments noc:USGovernment,noc:SpaceSystems1803NANANA1669NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:ProductOrService us-gaap:Product██▇▇▆▆▆▃▁▁▁61766247599758805728577656144790428941474183NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:ProductOrService us-gaap:Service▄▅▅█▅▂▅▁▄▃▃24442474247825762461238024712329244624052386NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:StatementGeographical country:US███▇▇▆▇▃▂▁▂▂▁7285729072707155697268166981599958655629570356815539NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:StatementGeographical noc:AllOtherGeographicRegionDomain▇█▆▆▅█▄▄▃▂▂▁▁865937815817749903658651556534522452483NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:StatementGeographical,us-gaap:StatementBusinessSegments country:US,noc:AeronauticsSystems2373NANANA2359NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:StatementGeographical,us-gaap:StatementBusinessSegments country:US,noc:DefenseSystems1370NANANA1238NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:StatementGeographical,us-gaap:StatementBusinessSegments country:US,noc:MissionSystems▁▇▇█▆▇▇▆▆▇▆16882316229223872201225122532193222022882220NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:StatementGeographical,us-gaap:StatementBusinessSegments country:US,noc:SpaceSystems1854NANANA1738NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService us-gaap:Product█▇▇▇▆▇▅▃▁▂▁49524720477746614517459742293698326933183189NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService us-gaap:Service▄▂▅█▅▂▁▁▃▄▁19461895197120651976189018611865190719391864NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:GeneralAndAdministrativeExpense ▅█▅▅▅▄▅▄▄▃▃▃▃▃▃▂▃▂▃▃▃▃▂▂▁788970776784760744817739711646666666677646662620656627663641635693580590542NA555582558NA5725805616375895565681259574621624NANANANA
us-gaap:OperatingIncomeLoss ▅▇▅▅▅▅█▄▄▃▄▄▄▄▄▃▃▂▃▃▃▃▃▄▄▃▃▃▃▄▃▃▃▃▄▄▃▃▃▂▃▁▁▁▁93411369519469369431178823854767845855832831826797739689794813780762769820845768790806759824736774796799825841811788801716765631619614619
 us-gaap:OperatingIncomeLoss us-gaap:ChangeInAccountingEstimateByType us-gaap:ContractsAccountedForUnderPercentageOfCompletion▄▁▄▅▄▆▅▅▄▁▃▃▃▃▄▄▄▄▃▅▆▃▆▅▇▃█12459125158138169149143116481029811510712113712911911216218710819416519796236NANANANANANANANANANANANANANANANANANA
 us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems us-gaap:OperatingSegments▆█▆▇▇▆▇▃▂▁▂▂▂▃▂▂▁▁▂▂▂▂▄▂▂▃▂▃9531024940978967927979779762721759753726772731731701717726742735760840742757772763797NANANANANANANANANANANANANANANANANA
 us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,noc:AeronauticsSystems259NANANA308NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,noc:DefenseSystems196NANANA202NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,noc:MissionSystems▁█▅▅▄▅▅▂▃▂▂▃▂▄▁▁▂▂▂▁▁348450398408383398399352371363363374353390351351353363355348344NANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,noc:SpaceSystems199NANANA188NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
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us-gaap:OtherNonoperatingIncomeExpense ▁▆▆▆▇▄█▇▇█▅▆▆▄▆▅▅▅▅▄▅▅▄▅▅-5825271936-1257454053132816-617713710-2013-6610NA0-226NA1251336-13052713-107NANANANA
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest ▇▁▇▇▇▆█▆▇▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆1053-5691055102810347851237849871684785807773748769730676621729736704701694756786707720724NANANANANANANANANANANANANANANANANA
us-gaap:IncomeTaxExpenseBenefit ▅▁▄▄▄▄▄▄▄█▄▅▄▅▄▅▄▄▅▅▅▅▅▅▅185-16012216717112893160132506140255133223167213120162213205220195221245207NA223236223NA236247250232235268262199224-65199NANANANA
us-gaap:ComprehensiveIncomeNetOfTax ▇▄▇▇▇▆█▇▇▇▇▇▇▅▇▇▇▆▇▇▇▁▆▇▇849-419921845856336122577282270374465174517696609652238598640550-1972481546642NA589576553NA520519562-766517534576549554726481NANANANA
us-gaap:NetIncomeLoss ▇▁▇▇▇▄█▆▆▄▆▅▆▅▆▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▆▅▅▅▅▅868-4099338618633561144689739178645552640525602517556459516531484506473511579478497488489533459480506548520520530376497711469413490394389
 us-gaap:NetIncomeLoss us-gaap:ChangeInAccountingEstimateByType us-gaap:ContractsAccountedForUnderPercentageOfCompletion▆▂▆▇▆█▇▇▅▁▃▃▄▄▄▅▅▄▄▆▇▄▇▆█984699125109134117113923166637569798984777310512271126107128NANANANANANANANANANANANANANANANANANANANA
 us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings▆▁▇▆▆▆█▆▆▃▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅868-4099338618636571244789739178645552640525602517556459516531484506473511579NANANA489NANANA506548520520530376497711469NANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:Assets █▇▇▇▇▆▆▆▅▅▂▂▂▂▁▁▁▁▁▁▁▂▁▂▂▂▂▂▂▂▁▁▁▂▁▂▂▄4320341089405533958439751376533794337378347953491726513258132541325614241002408123933244542396624552252662657225043253512553526381274052750825914265432526225226250532541125100253772679031421NANANA30252NANANA
us-gaap:Liabilities █▇▇▇▇▆▆▆▆▆▃▃▃▃▃▃▃▃▃▃▃▃▂▂▂▂▃▃▂▂▁▁▁▂▁▁▁▃3414132270308223037031012294662884029151271152786920020198941985520355183331840018312189321826918381185181933715150150831496615761180491795016445170291431514511145121507513149132281411317864NANANA17565NANANA
us-gaap:LiabilitiesAndStockholdersEquity █▇▇▇▇▆▆▆▅▅▂▂▂▂▁▁▁▁▁▁▁▂▁▂▂▂▂▂▂▂▁▁▁▂▁▂▂▄4320341089405533958439751376533794337378347953491726513258132541325614241002408123933244542396624552252662657225043253512553526381274052750825914265432526225226250532541125100253772679031421NANANA30252NANANA
us-gaap:StockholdersEquity ▄▄▅▄▄▃▄▄▃▃▂▂▁▁▁▁▁▁▁▂▂▃▅▅▅▆▄▅▅▅▆▆▅▅▇▇▇██▇▇▇906288199731921487398187910382277680704864935919555852595767568156215522569761716748723598931026810569106209356955894699514109471071510541103361195112149126771355713194129031264012687NANANA
 us-gaap:StockholdersEquity us-gaap:StatementEquityComponents us-gaap:RetainedEarnings▃▃▄▃▃▂█▇▇▅▅▅▅▅▅▅▅▅▅▅▆▆▆▇▇▆▆▆▅▅▅▄▄▄▃▃▃▂▂▂▁▁901187489649912086288068144641366913205115481154611087108241063010628106341066410661106131116411843123921256812945129831253812196118381149611138107391041910077969994019018863782458005764670776737NANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:AssetsCurrent ▆▄▄▄▄▄▄▄██▂▂▂▂▁▁▁▁▁▁▂▃▃▃▃▃▄▄▂▃▂▂▂▂▂▂▃▄1312810685108361015910443968010132972216157163497599686465686856577157815706633459516460714381848122839086049488959195647846839279027700736077467686781490719904NANANA8635NANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue ▃▂▁▁▁▂▁▂▇█▂▁▁▂▁▁▁▂▁▂▂▃▃▃▃▄▄▄▃▃▃▃▂▃▂▂▃▃▂▂▂▃3278224511271088755157912281539103691122518781383140325411103113912772319129219072646386334023476388551504944490431833862352531482682300229462810401937012528204419613275NANANA
us-gaap:AccountsReceivableNetCurrent █▃█▆█▃▅▆▂▁2136132621111832216614481702181512411054NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:InventoryNet ▅▅▅▅▅▄▄▄▁▅██▇▅▅▇▆▅▆78578381081077865471969043578010071039933816797973898807856NANA742NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsCurrent ███▆██▇▃▂▃▂▁▁▂▂▁▁▃▂▁▁▃▂▃▁▃▂▂▁▂▂▂▁▃▁▁▂▂10119971011772959973883406243368300162160200212186185367199160177369290339165350264240159300217225177411135163213251NANANA272NANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment ██▇▇▇▆▆▆▅▅▅▅▅▄▅▅▅▄▄▄▄▄▃▃▃▃▃▃▂▂▂▂▂▁▁▁▁▄59525850570956285493536953075187511950664994496549044831494549274877484948044728464846114540447144014337430542834215414641644094401839333897386437814722NANANA4216NANANA
us-gaap:PropertyPlantAndEquipmentNet ██▇▇▇▇▆▆▄▃▃▃▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▅69566912661165226420637260255864428542253925380236563588333432993230306430053005298929912845281827932806276327832829288728952935299330473010302830465042NANANA4868NANANA
us-gaap:Goodwill ████████▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂1869818708187071870818698186721864218747124551245512456124531245412450124641246312462124601245812464124641246612463124681246812438124381243712437124311237312344123741237412376123761237613517NANANA13517NANANA
us-gaap:IntangibleAssetsNetExcludingGoodwill ▁▂▃▄▆▇█▆9741040112312061289137214601329NA52NANANANANANANANANANANANANANANANANANANANANANANA155164174183779NANANA873NANANA
us-gaap:OtherAssetsNoncurrent ▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁█▁▁▁▁162317251682162615341463161515371424141313331309131912581292116311521187120012401277130914841495147114401339129512921291141214091431146181022108610901117NANANA1049NANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:LiabilitiesCurrent █▇▆▅▆▅▅▅▃▄▃▃▁▂▁▁▁▂▁▁▁▂▂▂▁▂▂▂▂▂▂▂▂▃▂▂▃▆101779434841681558821827480397833641569656300618651685630510650994955545751335154528458925511541452715815576256395555605656905608559461355721579561618386NANANA6985NANANA
us-gaap:LongTermDebtCurrent █▅▁▃▃▃▃▄▄▄1790110945545523517517744868867NANANA12NANANA110NANANA3NANANA2NANANA5NANANA5NANANANANANANANANANANA
us-gaap:AccountsPayableCurrent ▇█▇▆▆█▆▅▂▄▃▂▂▄▂▂▁▂▁▁▁▂▁▁▁▁▁▁▁▂▁▁▁▃▂▂▂▅20712226202119621932218219391824139516611507138513741554132512721204128211941246124813051193117812291229122111951225139211941191122614811338125913471846NANANA1921NANANA
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  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:LongTermDebtNoncurrent █▁1429912770NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent ██▆▆▆▆▅▆▅▆▇███▆▇▇▇▆▆▆▇▁▁▁▂▅▆▆▇▃▃▃▃▁▁▂▃67796979543155355646575553945755536255116579666667466818600960616117617257785871596265552775282028742954537454266025608537544067408040792591259730974116NANANA4874NANANA
us-gaap:OtherLiabilitiesNoncurrent ▇██▇▆▆▆▄▂▂▂▁▁▁▁▁▁▁▂▂▁▂▂▂▂▃▂▂▂▂▂▂▂▂▂▂▂▅1606177917341621145114461518117694699491482388184983185385388794193985496593892289410649859569289589409049059269018999161317NANANA1515NANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:StockholdersEquity ▄▄▅▄▄▃▄▄▃▃▂▂▁▁▁▁▁▁▁▂▂▃▅▅▅▆▄▅▅▅▆▆▅▅▇▇▇██▇▇▇906288199731921487398187910382277680704864935919555852595767568156215522569761716748723598931026810569106209356955894699514109471071510541103361195112149126771355713194129031264012687NANANA
 us-gaap:StockholdersEquity us-gaap:StatementEquityComponents us-gaap:RetainedEarnings▃▃▄▃▃▂█▇▇▅▅▅▅▅▅▅▅▅▅▅▆▆▆▇▇▆▆▆▅▅▅▄▄▄▃▃▃▂▂▂▁▁901187489649912086288068144641366913205115481154611087108241063010628106341066410661106131116411843123921256812945129831253812196118381149611138107391041910077969994019018863782458005764670776737NANANA
us-gaap:CommonStockValue ▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▂▂▂▂▂▃▃▃▃▄▄▄▅▅▅▅▆▆▆▆▇██167168169169170171174174174174174174175175177179181181183188195199203209215218224231235239246248252254266278293291NANANA307NANANA
us-gaap:RetainedEarningsAccumulatedDeficit ▂▂▃▂▂▁█▇▇▅▅▄▄▄▄▄▄▄▄▄▅▆▆▆▆▆▆▅▅▄▄▄▃▃▂▂▂▁90118748964991208628806814464136691320511548115461108710824106301062810634106641066110613111641184312392125681294512983125381219611838114961113810739104191007796999401901886378245NANANA6737NANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ██████▁▁▁▂▂▁▁▁▂▂▂▁▂▂▂▁▄▄▄▄▂▂▂▂▄▄▄▄▅▅▅▅-116-97-87-75-59-52-5535-5616-5699-4718-5243-5342-5441-5546-5038-5132-5224-5320-5099-5181-5290-5356-2878-2886-2921-2984-4543-4635-4723-4787-3334-3395-3434-3490-2176-2173-2187-2757NANANA-3014NANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▁█▅▆▁█▅▅▃▆▅▄▂▆▅▄▃▆▄▄▂▆▅▄▂▅▅▄▃-993246411391607-9132377812875-2371607938507-4391531738604-601633557626-6541490933572-40212049503281NANANA-1051321948-34-1201387978619-531NANANANA
us-gaap:NetCashProvidedByUsedInInvestingActivities ███████▁█████████████████████-270-422-250-255-280-458-261-7852-307-260-203-212-214-200-136-171-298-133-64-119-115-288-109-116-132-177-87-44-38NANANA169-409-101-911281-380-163-83-135NANANANA
us-gaap:NetCashProvidedByUsedInFinancingActivities ▄▂▂▂▃▁▂▁▂█▂▂▂▂▂▂▂▂▂▁▂▂▂▂▂2296-924-850-1112462-1568-862-1853-3128000-240-315-485107-638-571-684-473-1108-1246-448-741-898-865-731NANANA-642NANANA-384-856-711-1084-843166-331-453-648NANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▁█▅▆▁█▅▅▃▆▅▄▂▆▅▄▃▆▄▄▂▆▅▄▂▅▅▄▃-993246411391607-9132377812875-2371607938507-4391531738604-601633557626-6541490933572-40212049503281NANANA-1051321948-34-1201387978619-531NANANANA
us-gaap:NetIncomeLoss ▇▁▇▇▇▄█▆▆▄▆▅▆▅▆▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▆▅▅▅▅▅868-4099338618633561144689739178645552640525602517556459516531484506473511579478497488489533459480506548520520530376497711469413490394389
 us-gaap:NetIncomeLoss us-gaap:ChangeInAccountingEstimateByType us-gaap:ContractsAccountedForUnderPercentageOfCompletion▆▂▆▇▆█▇▇▅▁▃▃▄▄▄▅▅▄▄▆▇▄▇▆█984699125109134117113923166637569798984777310512271126107128NANANANANANANANANANANANANANANANANANANANA
 us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings▆▁▇▆▆▆█▆▆▃▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅868-4099338618636571244789739178645552640525602517556459516531484506473511579NANANA489NANANA506548520520530376497711469NANANANA
us-gaap:DepreciationDepletionAndAmortization █▇▇▆▆▇▆▃▂▃▁▁▁▂▁▁▁▂▁▂▁▂▁▁▁29728125824523426625315912215311110710413411310610313811311799140105108109NANANA110NANANA120NANANANANANANANANANANANA
us-gaap:IncreaseDecreaseInInventories ▆▅▆▆█▄▆▆▆▁▅██▆▂▇▇▅▆▆▇▇▄▅▇2-21032124-65293637-227-3210611729-1848189-5013417667-76-3366NANANA125NANANA-6024-1624-301523-6487NANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ███████▁█████████████████████-270-422-250-255-280-458-261-7852-307-260-203-212-214-200-136-171-298-133-64-119-115-288-109-116-132-177-87-44-38NANANA169-409-101-911281-380-163-83-135NANANANA
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▅█▄▄▅█▅▃▅▅▄▄▄▅▂▃▅▂▂▂▂▅▂▂▁27247125725228446328219930527821721721631213717329813710211511727610911660NANANA40NANANA811641089412246912375103NANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▄▂▂▂▃▁▂▁▂█▂▂▂▂▂▂▂▂▂▁▂▂▂▂▂2296-924-850-1112462-1568-862-1853-3128000-240-315-485107-638-571-684-473-1108-1246-448-741-898-865-731NANANA-642NANANA-384-856-711-1084-843166-331-453-648NANANANA
us-gaap:ProceedsFromIssuanceOfLongTermDebt 2239NANANA0NANANANANANANANA7490000006000000NANANANANANANANANANANANANANANANANANANANA
us-gaap:PaymentsForRepurchaseOfCommonStock ▃▃▂▂▁█▂▁▁▁▁▂▂▄▄▄▃▃▇█▆▅▆▆▅3443002131716010541684100261382293984674002823189481091825610757731570NANANA456NANANA263697585100013117205348507NANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument noc:TwoThousandFiftyNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument noc:TwoThousandForty2NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument noc:TwoThousandThirtyNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA

Common Stock Value

us-gaap:CommonStockValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value167168169169170171174174174174174174175175177179181181183188195199203209215218224231235239246248252254266278293291307
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.40.40.40.40.50.50.50.50.50.70.70.70.70.70.70.80.70.80.80.80.70.80.80.80.80.80.80.90.91.01.01.01.01.11.11.10.91.0

Common Stock Par Or Stated Value Per Share

Common Stock Shares Issued

us-gaap:CommonStockSharesIssued



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value167167168169169170173174174174174174174175176178180181182188195198203209215217223230235239245248252253265277292290306
Percentage of CommonStockSharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Common Stock Shares Outstanding

us-gaap:CommonStockSharesOutstanding



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value167167168169169170173174174174174174174175176178180181182188195198203209215217223230235239245248252253265277292290306
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Common Stock Shares Authorized

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value168168169170170172174175175175175175176177179181183184187193200204209215220225232237241248252254258262279287296296297303306
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value167168169169170171174174174174174174174176178180181182185191197200206212216220228234236243247250253258274282291291293299302
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value5.18-2.435.525.075.082.076.573.954.241.023.73.163.662.983.382.873.072.522.782.772.452.522.292.412.682.172.182.092.072.191.861.912.02.121.891.841.821.291.692.371.551.321.551.221.19
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



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value5.15-2.435.495.065.062.066.543.934.211.013.683.153.632.963.352.853.032.492.752.742.412.482.262.372.632.122.142.052.032.141.821.881.962.091.861.811.791.271.672.341.531.311.531.211.17
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

us-gaap:ChangeInAccountingEstimateByType

us-gaap:ContractsAccountedForUnderPercentageOfCompletion



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value0.580.270.580.730.640.76999999999999980.670.640.520.170000000000000150.380.360.430.39000000000000010.440.490.460.419999999999999930.390.540.610.36000000000000010.60.50.580.28999999999999980.66
Percentage of EarningsPerShareDiluted11.3-11.110.614.412.637.410.216.312.416.810.311.411.813.213.117.215.216.914.219.725.314.526.521.122.113.730.8

Income Loss From Continuing Operations Per Basic Share

Income Loss From Continuing Operations Per Diluted Share

Revenues

us-gaap:Revenues



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value862087218475845681898156808571196735655265696473641063976155600059565694597958965957610859846039584861576106629461046476627062746198650666126560673486078714882686108925835085457935
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 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

us-gaap:ConsolidationItems

us-gaap:IntersegmentElimination



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-3994388-663-604608608563-540572594575
Percentage of Revenues-4.650.3-7.8-7.17.47.57.0-7.68.59.18.8
Percentage of Revenues-4.650.3-7.8-7.17.47.57.0-7.68.59.18.8
Percentage of Revenues us-gaap:IntersegmentElimination100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, noc:AeronauticsSystems



Period End2020-03-312019-03-31
Value28432818
Percentage of Revenues33.034.4
Percentage of Revenues33.034.4
Percentage of Revenues us-gaap:OperatingSegments noc:AeronauticsSystems100.0100.0

us-gaap:OperatingSegments, noc:DefenseSystems



Period End2020-03-312019-03-31
Value18811768
Percentage of Revenues21.821.6
Percentage of Revenues21.821.6
Percentage of Revenues us-gaap:OperatingSegments noc:DefenseSystems100.0100.0

us-gaap:OperatingSegments, noc:MissionSystems



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value234732203029312828863041291128742883297528362781273930802698269026932612272326282711
Percentage of Revenues27.236.935.737.035.237.336.040.442.845.443.243.042.748.143.844.845.245.945.544.645.5
Percentage of Revenues27.236.935.737.035.237.336.040.442.845.443.243.042.748.143.844.845.245.945.544.645.5
Percentage of Revenues us-gaap:OperatingSegments noc:MissionSystems100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, noc:SpaceSystems



Period End2020-03-312019-03-31
Value19481801
Percentage of Revenues22.622.0
Percentage of Revenues22.622.0
Percentage of Revenues us-gaap:OperatingSegments noc:SpaceSystems100.0100.0

us-gaap:ContractWithCustomerBasisOfPricing

us-gaap:FixedPriceContract



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value4405450643994344411343534127349431173072303728762822
Percentage of Revenues51.151.751.951.450.253.451.049.146.346.946.244.444.0
Percentage of Revenues51.151.751.951.450.253.451.049.146.346.946.244.444.0
Percentage of Revenues us-gaap:FixedPriceContract100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TimeAndMaterialsContract



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value4215421540764112407638033958362536183480353235973588
Percentage of Revenues48.948.348.148.649.846.649.050.953.753.153.855.656.0
Percentage of Revenues48.948.348.148.649.846.649.050.953.753.153.855.656.0
Percentage of Revenues us-gaap:TimeAndMaterialsContract100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerBasisOfPricing, us-gaap:StatementBusinessSegments

noc:IntersegmentSales, noc:AeronauticsSystems



Period End2020-03-312019-03-31
Value2624
Percentage of Revenues0.30.3
Percentage of Revenues0.30.3
Percentage of Revenues noc:IntersegmentSales noc:AeronauticsSystems100.0100.0

noc:IntersegmentSales, noc:DefenseSystems



Period End2020-03-312019-03-31
Value171167
Percentage of Revenues2.02.0
Percentage of Revenues2.02.0
Percentage of Revenues noc:IntersegmentSales noc:DefenseSystems100.0100.0

noc:IntersegmentSales, noc:MissionSystems



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value176306321197287280
Percentage of Revenues2.03.53.82.43.53.5
Percentage of Revenues2.03.53.82.43.53.5
Percentage of Revenues noc:IntersegmentSales noc:MissionSystems100.0100.0100.0100.0100.0100.0

noc:IntersegmentSales, noc:SpaceSystems



Period End2020-03-312019-03-31
Value2620
Percentage of Revenues0.30.2
Percentage of Revenues0.30.2
Percentage of Revenues noc:IntersegmentSales noc:SpaceSystems100.0100.0

us-gaap:FixedPriceContract, noc:AeronauticsSystems



Period End2020-03-312019-03-31
Value14741482
Percentage of Revenues17.118.1
Percentage of Revenues17.118.1
Percentage of Revenues us-gaap:FixedPriceContract noc:AeronauticsSystems100.0100.0

us-gaap:FixedPriceContract, noc:DefenseSystems



Period End2020-03-312019-03-31
Value1082978
Percentage of Revenues12.611.9
Percentage of Revenues12.611.9
Percentage of Revenues us-gaap:FixedPriceContract noc:DefenseSystems100.0100.0

us-gaap:FixedPriceContract, noc:MissionSystems



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1325160414441530129415601372137313201412128812601245
Percentage of Revenues15.418.417.018.115.819.117.019.319.621.619.619.519.4
Percentage of Revenues15.418.417.018.115.819.117.019.319.621.619.619.519.4
Percentage of Revenues us-gaap:FixedPriceContract noc:MissionSystems100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FixedPriceContract, noc:SpaceSystems



Period End2020-03-312019-03-31
Value524475
Percentage of Revenues6.15.8
Percentage of Revenues6.15.8
Percentage of Revenues us-gaap:FixedPriceContract noc:SpaceSystems100.0100.0

us-gaap:TimeAndMaterialsContract, noc:AeronauticsSystems



Period End2020-03-312019-03-31
Value13431312
Percentage of Revenues15.616.0
Percentage of Revenues15.616.0
Percentage of Revenues us-gaap:TimeAndMaterialsContract noc:AeronauticsSystems100.0100.0

us-gaap:TimeAndMaterialsContract, noc:DefenseSystems



Period End2020-03-312019-03-31
Value628623
Percentage of Revenues7.37.6
Percentage of Revenues7.37.6
Percentage of Revenues us-gaap:TimeAndMaterialsContract noc:DefenseSystems100.0100.0

us-gaap:TimeAndMaterialsContract, noc:MissionSystems



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value846131012641316127411941259120712791327131513531316
Percentage of Revenues9.815.014.915.615.614.615.617.019.020.320.020.920.5
Percentage of Revenues9.815.014.915.615.614.615.617.019.020.320.020.920.5
Percentage of Revenues us-gaap:TimeAndMaterialsContract noc:MissionSystems100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TimeAndMaterialsContract, noc:SpaceSystems



Period End2020-03-312019-03-31
Value13981306
Percentage of Revenues16.215.9
Percentage of Revenues16.215.9
Percentage of Revenues us-gaap:TimeAndMaterialsContract noc:SpaceSystems100.0100.0

us-gaap:MajorCustomers

noc:International



Period End2020-03-312019-09-302019-03-312018-09-30
Value1335120512171099
Percentage of Revenues15.514.214.913.6
Percentage of Revenues15.514.214.913.6
Percentage of Revenues noc:International100.0100.0100.0100.0

noc:OtherCustomers



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value19112320421121524727517816598157165163
Percentage of Revenues2.21.42.42.52.63.03.42.52.41.52.42.52.5
Percentage of Revenues2.21.42.42.52.63.03.42.52.41.52.42.52.5
Percentage of Revenues noc:OtherCustomers100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

noc:USGovernment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value7094716770666944675765696711581657005532554755155375
Percentage of Revenues82.382.283.482.182.580.583.081.784.684.484.485.283.9
Percentage of Revenues82.382.283.482.182.580.583.081.784.684.484.485.283.9
Percentage of Revenues noc:USGovernment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:MajorCustomers, us-gaap:StatementBusinessSegments

noc:International, noc:AeronauticsSystems



Period End2020-03-312019-03-31
Value444435
Percentage of Revenues5.25.3
Percentage of Revenues5.25.3
Percentage of Revenues noc:International noc:AeronauticsSystems100.0100.0

noc:International, noc:DefenseSystems



Period End2020-03-312019-03-31
Value340363
Percentage of Revenues3.94.4
Percentage of Revenues3.94.4
Percentage of Revenues noc:International noc:DefenseSystems100.0100.0

noc:International, noc:MissionSystems



Period End2020-03-312019-09-302019-03-312018-09-30
Value483416376374
Percentage of Revenues5.64.94.64.6
Percentage of Revenues5.64.94.64.6
Percentage of Revenues noc:International noc:MissionSystems100.0100.0100.0100.0

noc:International, noc:SpaceSystems



Period End2020-03-312019-03-31
Value6843
Percentage of Revenues0.80.5
Percentage of Revenues0.80.5
Percentage of Revenues noc:International noc:SpaceSystems100.0100.0

noc:IntersegmentSales, noc:AeronauticsSystems



Period End2020-03-312019-03-31
Value2624
Percentage of Revenues0.30.3
Percentage of Revenues0.30.3
Percentage of Revenues noc:IntersegmentSales noc:AeronauticsSystems100.0100.0

noc:IntersegmentSales, noc:DefenseSystems



Period End2020-03-312019-03-31
Value171167
Percentage of Revenues2.02.0
Percentage of Revenues2.02.0
Percentage of Revenues noc:IntersegmentSales noc:DefenseSystems100.0100.0

noc:IntersegmentSales, noc:MissionSystems



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value176306321197287280
Percentage of Revenues2.03.53.82.43.53.5
Percentage of Revenues2.03.53.82.43.53.5
Percentage of Revenues noc:IntersegmentSales noc:MissionSystems100.0100.0100.0100.0100.0100.0

noc:IntersegmentSales, noc:SpaceSystems



Period End2020-03-312019-03-31
Value2620
Percentage of Revenues0.30.2
Percentage of Revenues0.30.2
Percentage of Revenues noc:IntersegmentSales noc:SpaceSystems100.0100.0

noc:OtherCustomers, noc:AeronauticsSystems



Period End2020-03-312019-03-31
Value1225
Percentage of Revenues0.10.3
Percentage of Revenues0.10.3
Percentage of Revenues noc:OtherCustomers noc:AeronauticsSystems100.0100.0

noc:OtherCustomers, noc:DefenseSystems



Period End2020-03-312019-03-31
Value11197
Percentage of Revenues1.31.2
Percentage of Revenues1.31.2
Percentage of Revenues noc:OtherCustomers noc:DefenseSystems100.0100.0

noc:OtherCustomers, noc:MissionSystems



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value17123239342525343019273321
Percentage of Revenues0.20.10.40.50.40.30.30.50.40.30.40.50.3
Percentage of Revenues0.20.10.40.50.40.30.30.50.40.30.40.50.3
Percentage of Revenues noc:OtherCustomers noc:MissionSystems100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

noc:OtherCustomers, noc:SpaceSystems



Period End2020-03-312019-03-31
Value5169
Percentage of Revenues0.60.8
Percentage of Revenues0.60.8
Percentage of Revenues noc:OtherCustomers noc:SpaceSystems100.0100.0

noc:USGovernment, noc:AeronauticsSystems



Period End2020-03-312019-03-31
Value23612334
Percentage of Revenues27.428.5
Percentage of Revenues27.428.5
Percentage of Revenues noc:USGovernment noc:AeronauticsSystems100.0100.0

noc:USGovernment, noc:DefenseSystems



Period End2020-03-312019-03-31
Value12591141
Percentage of Revenues14.613.9
Percentage of Revenues14.613.9
Percentage of Revenues noc:USGovernment noc:DefenseSystems100.0100.0

noc:USGovernment, noc:MissionSystems



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1671230422602348216722262232215521902270219322272186
Percentage of Revenues19.426.426.727.826.527.327.630.332.534.633.434.434.1
Percentage of Revenues19.426.426.727.826.527.327.630.332.534.633.434.434.1
Percentage of Revenues noc:USGovernment noc:MissionSystems100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

noc:USGovernment, noc:SpaceSystems



Period End2020-03-312019-03-31
Value18031669
Percentage of Revenues20.920.4
Percentage of Revenues20.920.4
Percentage of Revenues noc:USGovernment noc:SpaceSystems100.0100.0

us-gaap:ProductOrService

us-gaap:Product



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value61766247599758805728577656144790428941474183
Percentage of Revenues71.671.670.869.569.970.869.467.363.763.363.7
Percentage of Revenues71.671.670.869.569.970.869.467.363.763.363.7
Percentage of Revenues us-gaap:Product100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Service



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value24442474247825762461238024712329244624052386
Percentage of Revenues28.428.429.230.530.129.230.632.736.336.736.3
Percentage of Revenues28.428.429.230.530.129.230.632.736.336.736.3
Percentage of Revenues us-gaap:Service100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementGeographical

country:US



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value7285729072707155697268166981599958655629570356815539
Percentage of Revenues84.583.685.884.685.183.686.384.387.185.986.887.886.4
Percentage of Revenues84.583.685.884.685.183.686.384.387.185.986.887.886.4
Percentage of Revenues country:US100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

noc:AllOtherGeographicRegionDomain



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value865937815817749903658651556534522452483
Percentage of Revenues10.010.79.69.79.111.18.19.18.38.27.97.07.5
Percentage of Revenues10.010.79.69.79.111.18.19.18.38.27.97.07.5
Percentage of Revenues noc:AllOtherGeographicRegionDomain100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:AsiaPacific



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value470494390484468437446469314389344
Percentage of Revenues5.55.74.65.75.75.45.56.64.75.95.2
Percentage of Revenues5.55.74.65.75.75.45.56.64.75.95.2
Percentage of Revenues srt:AsiaPacific100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementGeographical, us-gaap:StatementBusinessSegments

country:US, noc:AeronauticsSystems



Period End2020-03-312019-03-31
Value23732359
Percentage of Revenues27.528.8
Percentage of Revenues27.528.8
Percentage of Revenues country:US noc:AeronauticsSystems100.0100.0

country:US, noc:DefenseSystems



Period End2020-03-312019-03-31
Value13701238
Percentage of Revenues15.915.1
Percentage of Revenues15.915.1
Percentage of Revenues country:US noc:DefenseSystems100.0100.0

country:US, noc:MissionSystems



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value16882316229223872201225122532193222022882220
Percentage of Revenues19.626.627.028.226.927.627.930.833.034.933.8
Percentage of Revenues19.626.627.028.226.927.627.930.833.034.933.8
Percentage of Revenues country:US noc:MissionSystems100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

country:US, noc:SpaceSystems



Period End2020-03-312019-03-31
Value18541738
Percentage of Revenues21.521.2
Percentage of Revenues21.521.2
Percentage of Revenues country:US noc:SpaceSystems100.0100.0

noc:AllOtherGeographicRegionDomain, noc:AeronauticsSystems



Period End2020-03-312019-03-31
Value237202
Percentage of Revenues2.72.5
Percentage of Revenues2.72.5
Percentage of Revenues noc:AllOtherGeographicRegionDomain noc:AeronauticsSystems100.0100.0

noc:AllOtherGeographicRegionDomain, noc:DefenseSystems



Period End2020-03-312019-03-31
Value258275
Percentage of Revenues3.03.4
Percentage of Revenues3.03.4
Percentage of Revenues noc:AllOtherGeographicRegionDomain noc:DefenseSystems100.0100.0

noc:AllOtherGeographicRegionDomain, noc:MissionSystems



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value307365273305221365170227226250222
Percentage of Revenues3.64.23.23.62.74.52.13.23.43.83.4
Percentage of Revenues3.64.23.23.62.74.52.13.23.43.83.4
Percentage of Revenues noc:AllOtherGeographicRegionDomain noc:MissionSystems100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

noc:AllOtherGeographicRegionDomain, noc:SpaceSystems



Period End2020-03-312019-03-31
Value6331
Percentage of Revenues0.70.4
Percentage of Revenues0.70.4
Percentage of Revenues noc:AllOtherGeographicRegionDomain noc:SpaceSystems100.0100.0

noc:IntersegmentSales, noc:AeronauticsSystems



Period End2020-03-312019-03-31
Value2624
Percentage of Revenues0.30.3
Percentage of Revenues0.30.3
Percentage of Revenues noc:IntersegmentSales noc:AeronauticsSystems100.0100.0

noc:IntersegmentSales, noc:DefenseSystems



Period End2020-03-312019-03-31
Value171167
Percentage of Revenues2.02.0
Percentage of Revenues2.02.0
Percentage of Revenues noc:IntersegmentSales noc:DefenseSystems100.0100.0

noc:IntersegmentSales, noc:MissionSystems



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value176306321197287280
Percentage of Revenues2.03.53.82.43.53.5
Percentage of Revenues2.03.53.82.43.53.5
Percentage of Revenues noc:IntersegmentSales noc:MissionSystems100.0100.0100.0100.0100.0100.0

noc:IntersegmentSales, noc:SpaceSystems



Period End2020-03-312019-03-31
Value2620
Percentage of Revenues0.30.2
Percentage of Revenues0.30.2
Percentage of Revenues noc:IntersegmentSales noc:SpaceSystems100.0100.0

srt:AsiaPacific, noc:AeronauticsSystems



Period End2020-03-312019-03-31
Value207233
Percentage of Revenues2.42.8
Percentage of Revenues2.42.8
Percentage of Revenues srt:AsiaPacific noc:AeronauticsSystems100.0100.0

srt:AsiaPacific, noc:DefenseSystems



Period End2020-03-312019-03-31
Value8288
Percentage of Revenues1.01.1
Percentage of Revenues1.01.1
Percentage of Revenues srt:AsiaPacific noc:DefenseSystems100.0100.0

srt:AsiaPacific, noc:MissionSystems



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value176233143154146138208160153201161
Percentage of Revenues2.02.71.71.81.81.72.62.22.33.12.5
Percentage of Revenues2.02.71.71.81.81.72.62.22.33.12.5
Percentage of Revenues srt:AsiaPacific noc:MissionSystems100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:AsiaPacific, noc:SpaceSystems



Period End2020-03-312019-03-31
Value512
Percentage of Revenues0.10.1
Percentage of Revenues0.10.1
Percentage of Revenues srt:AsiaPacific noc:SpaceSystems100.0100.0

Sales Revenue Net

Sales Revenue Goods Net

Cost Of Goods And Services Sold

us-gaap:ProductOrService

us-gaap:CostOfGoodsAndServicesSold

us-gaap:Product



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value49524720477746614517459742293698326933183189
Percentage of CostOfGoodsAndServicesSold100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues57.454.156.455.155.256.452.351.948.550.648.5
Percentage of Revenues us-gaap:Product80.275.679.779.378.979.675.377.276.280.076.2

us-gaap:Service



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value19461895197120651976189018611865190719391864
Percentage of CostOfGoodsAndServicesSold39.340.141.344.343.741.144.050.458.358.458.5
Percentage of Revenues22.621.723.324.424.123.223.026.228.329.628.4
Percentage of Revenues us-gaap:Service79.676.679.580.280.379.475.380.178.080.678.1

Cost Of Goods Sold

Cost Of Services

Research And Development Expense

General And Administrative Expense

us-gaap:GeneralAndAdministrativeExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value7889707767847607448177397116466666666776466626206566276636416356935805905425555825585725805616375895565681259574621624
Percentage of GeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues9.111.19.29.39.39.110.110.410.69.910.110.310.610.110.810.311.011.011.110.910.711.39.79.89.39.19.29.19.19.29.19.88.98.58.414.66.67.07.2

Operating Income Loss

us-gaap:OperatingIncomeLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value93411369519469369431178823854767845855832831826797739689794813780762769820845768790806759824736774796799825841811788801716765631619614619
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 Revenues10.813.011.211.211.411.614.611.612.711.712.913.213.013.013.413.312.412.113.313.813.112.512.913.614.412.512.912.812.412.711.712.312.812.312.512.812.09.29.28.18.97.17.47.27.8

us-gaap:ChangeInAccountingEstimateByType

us-gaap:ContractsAccountedForUnderPercentageOfCompletion



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value12459125158138169149143116481029811510712113712911911216218710819416519796236
Percentage of OperatingIncomeLoss13.35.213.116.714.717.912.617.413.66.312.111.513.812.914.617.217.517.314.119.924.014.225.220.123.312.529.9
Percentage of Revenues1.40.71.51.91.72.11.82.01.70.71.61.51.81.72.02.32.22.11.92.73.11.83.22.73.41.63.9
Percentage of Revenues us-gaap:ContractsAccountedForUnderPercentageOfCompletion0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value-124-7-120-139-139-17524-92-34-102-85-34-29-225-3-33-114-29-9-38-66-50-31-22-46-33
Percentage of OperatingIncomeLoss-13.3-0.6-12.6-14.7-14.9-18.62.0-11.2-4.0-13.3-10.1-4.0-3.5-2.60.6-0.4-4.5-16.5-3.7-1.1-4.9-8.7-6.5-3.8-2.6-6.0-4.2
Percentage of Revenues-1.4-0.1-1.4-1.6-1.7-2.10.3-1.3-0.5-1.6-1.3-0.5-0.5-0.30.1-0.1-0.6-2.0-0.5-0.2-0.6-1.1-0.8-0.5-0.4-0.7-0.5
Percentage of Revenues us-gaap:CorporateNonSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:IntersegmentElimination



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value-49514-82-736766686472667170707061636453626261413-52-6065450-69-71
Percentage of OperatingIncomeLoss-5.245.2-8.6-7.77.27.05.87.88.48.68.48.28.48.47.47.98.77.77.87.67.854.2-6.8-7.37.758.6-8.7-8.8
Percentage of Revenues-0.65.9-1.0-0.90.80.80.80.91.11.01.11.11.11.11.01.11.10.91.01.11.06.8-0.9-1.01.17.3-1.1-1.1
Percentage of Revenues us-gaap:IntersegmentElimination12.311.712.412.111.010.912.1-11.912.611.112.30.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value9531024940978967927979779762721759753726772731731701717726742735760840742757772763797
Percentage of OperatingIncomeLoss102.090.198.8103.4103.398.383.194.789.294.089.888.187.392.988.591.794.9104.191.491.394.299.7109.290.589.6100.596.698.9
Percentage of Revenues11.111.711.111.611.811.412.110.911.311.011.611.611.312.111.912.211.812.612.112.612.312.414.012.312.912.512.512.7
Percentage of Revenues us-gaap:OperatingSegments0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, noc:AeronauticsSystems



Period End2020-03-312019-03-31
Value259308
Percentage of OperatingIncomeLoss27.732.9
Percentage of Revenues3.03.8
Percentage of Revenues us-gaap:OperatingSegments noc:AeronauticsSystems9.110.9

us-gaap:OperatingSegments, noc:DefenseSystems



Period End2020-03-312019-03-31
Value196202
Percentage of OperatingIncomeLoss21.021.6
Percentage of Revenues2.32.5
Percentage of Revenues us-gaap:OperatingSegments noc:DefenseSystems10.411.4

us-gaap:OperatingSegments, noc:MissionSystems



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value348450398408383398399352371363363374353390351351353363355348344
Percentage of OperatingIncomeLoss37.339.641.943.140.942.233.942.843.447.343.043.742.446.942.544.047.852.744.742.844.1
Percentage of Revenues4.05.24.74.84.74.94.94.95.55.55.55.85.56.15.75.95.96.45.95.95.8
Percentage of Revenues us-gaap:OperatingSegments noc:MissionSystems14.814.013.113.013.313.113.712.212.912.212.813.412.912.713.013.013.113.913.013.212.7

us-gaap:OperatingSegments, noc:SpaceSystems



Period End2020-03-312019-03-31
Value199188
Percentage of OperatingIncomeLoss21.320.1
Percentage of Revenues2.32.3
Percentage of Revenues us-gaap:OperatingSegments noc:SpaceSystems10.210.4

Interest And Debt Expense

us-gaap:InterestAndDebtExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1251301231371381421331441431367376757774747675757576746970697060535352535357535875646577
Percentage of InterestAndDebtExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues1.51.51.51.61.71.71.62.02.12.11.11.21.21.21.21.21.31.31.31.31.31.21.21.21.21.11.00.90.80.80.90.80.90.80.90.90.70.70.9

Other Nonoperating Income Expense

us-gaap:OtherNonoperatingIncomeExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-5825271936-1257454053132816-617713710-2013-66100-2261251336-13052713-107
Percentage of OtherNonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0
Percentage of Revenues-0.70.30.30.20.4-0.10.70.60.60.80.20.40.2-0.10.30.10.20.10.2-0.00.00.2-0.10.10.20.0-0.30.10.20.10.20.6-0.20.00.10.30.1-0.10.1

Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value1053-5691055102810347851237849871684785807773748769730676621729736704701694756786707720724
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues12.2-6.512.412.212.69.615.311.912.910.412.012.512.111.712.512.211.310.912.212.511.811.511.612.513.411.511.811.5

Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest

Income Loss From Continuing Operations Before Income Taxes Domestic

Income Loss From Continuing Operations Before Income Taxes Foreign

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value185-16012216717112893160132506140255133223167213120162213205220195221245207223236223236247250232235268262199224-65199
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues2.1-1.81.42.02.11.61.22.22.07.72.13.92.13.52.73.52.02.83.63.53.73.23.74.13.53.73.73.73.83.94.03.63.64.13.92.32.6-0.72.3

Income Taxes Paid Net

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value849-419921845856336122577282270374465174517696609652238598640550-1972481546642589576553520519562-766517534576549554726481
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues9.8-4.810.910.010.54.115.210.812.210.711.310.111.60.311.310.210.94.210.010.99.2-32.38.09.011.09.69.29.18.38.39.1-11.87.88.18.66.46.48.25.6

Net Income Loss

us-gaap:NetIncomeLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value868-4099338618633561144689739178645552640525602517556459516531484506473511579478497488489533459480506548520520530376497711469413490394389
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues10.1-4.711.010.210.54.414.19.711.02.79.88.510.08.29.88.69.38.18.69.08.18.37.98.59.97.88.17.88.08.27.37.78.28.47.97.97.94.45.78.15.44.65.94.64.9

us-gaap:ChangeInAccountingEstimateByType

us-gaap:ContractsAccountedForUnderPercentageOfCompletion



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value984699125109134117113923166637569798984777310512271126107128
Percentage of NetIncomeLoss11.3-11.210.614.512.637.610.216.412.417.410.211.411.713.113.117.215.116.814.119.825.214.026.620.922.1
Percentage of Revenues1.10.51.21.51.31.61.41.61.40.51.01.01.21.11.31.51.41.41.21.82.01.22.11.82.2
Percentage of Revenues us-gaap:ContractsAccountedForUnderPercentageOfCompletion0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value868-4099338618636571244789739178645552640525602517556459516531484506473511579489506548520520530376497711469
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0184.6108.7114.5100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues10.1-4.711.010.210.58.115.411.111.02.79.88.510.08.29.88.69.38.18.69.08.18.37.98.59.98.08.28.47.97.97.94.45.78.15.4
Percentage of Revenues us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets

us-gaap:Assets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-31
Value43203410894055339584397513765337943373783479534917265132581325413256142410024081239332445423966245522526626572250432535125535263812740527508259142654325262252262505325411251002537726790314213025230197
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value341413227030822303703101229466288402915127115278692002019894198552035518333184001831218932182691838118518193371515015083149661576118049179501644517029143151451114512150751314913228141131786417565
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets79.078.576.076.778.078.376.078.077.979.875.577.178.179.576.176.476.577.476.274.973.372.860.559.558.659.765.965.363.564.256.757.557.959.352.452.152.756.958.1

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value432034108940553395843975137653379433737834795349172651325813254132561424100240812393324454239662455225266265722504325351255352638127405275082591426543252622522625053254112510025377267903142130252
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value90628819973192148739818791038227768070486493591955585259576756815621552256976171674872359893102681056910620935695589469951410947107151054110336119511214912677135571319412903126401268711920
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets21.021.524.023.322.021.724.022.022.120.224.522.921.920.523.923.623.522.623.825.126.727.239.540.541.440.334.134.736.535.843.342.542.140.747.647.947.343.10.00.00.041.939.5

us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value-116-97-87-75-59-52-5535-5616-5699-4718-5243-5342-5441-5546-5038-5132-5224-5320-5099-5181-5290-5356-2878-2886-2921-2984-4543-4635-4723-4787-3334-3395-3434-3490-2176-2173-2187-2757-2930-2987-3002-3014-3642-699
Percentage of StockholdersEquity-1.3-1.1-0.9-0.8-0.7-0.6-60.8-68.3-74.2-66.9-80.7-90.3-97.9-105.5-87.4-90.3-92.9-96.3-89.5-84.0-78.4-74.0-29.1-28.1-27.6-28.1-48.6-48.5-49.9-50.3-30.5-31.7-32.6-33.8-18.2-17.9-17.3-20.3-22.2-23.1-23.8-23.8-30.60.0
Percentage of Assets-0.3-0.2-0.2-0.2-0.1-0.1-14.6-15.0-16.4-13.5-19.8-20.7-21.4-21.7-20.9-21.3-21.8-21.8-21.3-21.1-20.9-20.2-11.5-11.4-11.4-11.3-16.6-16.8-18.2-18.0-13.2-13.5-13.7-13.7-8.7-8.6-8.2-8.80.00.00.0-10.0-12.10.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value000000000441600000000000002928481479212424612924329634433646387344605026593477787827794982648657964510661
Percentage of StockholdersEquity0.00.00.00.00.00.00.00.00.00.60.20.00.00.00.00.00.00.00.00.00.00.00.00.02.88.015.822.226.030.730.132.134.637.537.341.446.857.459.361.665.468.280.90.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.10.10.00.00.00.00.00.00.00.00.00.00.00.00.01.13.25.47.79.511.013.013.614.615.217.819.822.224.80.00.00.028.631.90.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value167168169169170171174174174174174174175175177179181181183188195199203209215218224231235239246248252254266278293291292295301307327338
Percentage of StockholdersEquity1.81.91.71.81.92.11.92.12.32.52.72.93.13.33.13.23.23.33.23.02.92.82.12.02.02.12.42.42.52.52.22.32.42.52.22.32.32.12.22.32.42.42.70.0
Percentage of Assets0.40.40.40.40.40.50.50.50.50.50.70.70.70.70.70.70.80.70.80.80.80.70.80.80.80.80.80.80.90.91.01.01.01.01.11.11.10.90.00.00.01.01.10.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value90118748964991208628806814464136691320511548115461108710824106301062810634106641066110613111641184312392125681294512983125381219611838114961113810739104191007796999401901886378245800576467077673755907387
Percentage of StockholdersEquity99.499.299.299.098.798.5158.9166.1171.9163.8177.8187.3194.7202.1184.3187.2189.7193.1186.3180.9175.5171.3127.0126.1122.8118.1130.4123.9121.4117.198.197.295.693.878.774.268.160.860.759.356.053.146.90.0
Percentage of Assets20.921.323.823.021.721.438.136.638.033.143.543.042.641.544.144.244.643.644.345.546.946.650.251.150.847.544.543.044.442.042.541.340.238.237.535.532.226.20.00.00.022.318.50.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets Current

us-gaap:AssetsCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value13128106851083610159104439680101329722161571634975996864656868565771578157066334595164607143818481228390860494889591956478468392790277007360774676867814907199048635
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets30.426.026.725.726.325.726.726.046.446.828.726.625.826.823.924.023.825.924.826.328.330.832.433.133.736.035.034.830.331.631.330.529.430.530.630.833.931.528.5

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value32782245112710887551579122815391036911225187813831403254111031139127723191292190726463863340234763885515049444904318338623525314826823002294628104019370125282044196132751504963
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.65.52.82.71.94.23.24.129.832.17.15.45.59.94.64.75.39.55.47.810.514.513.613.715.219.518.017.812.314.514.012.510.711.811.711.115.011.80.00.00.010.85.00.0

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value2136132621111832216614481702181512411054
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.93.25.24.65.43.84.54.93.63.0

Inventory Net

us-gaap:InventoryNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value78578381081077865471969043578010071039933816797973898807856742
Percentage of InventoryNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.81.92.02.02.01.71.91.81.32.23.84.03.73.23.34.03.83.33.62.8

Other Assets Current

us-gaap:OtherAssetsCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value10119971011772959973883406243368300162160200212186185367199160177369290339165350264240159300217225177411135163213251272
Percentage of OtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.32.42.52.02.42.62.31.10.71.11.10.60.60.80.90.80.81.50.80.70.71.41.21.30.61.31.00.90.61.10.90.90.71.60.50.60.80.80.9

Land

Machinery And Equipment Gross

Property Plant And Equipment Gross

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value595258505709562854935369530751875119506649944965490448314945492748774849480447284648461145404471440143374305428342154146416440944018393338973864378147224216
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets13.814.214.114.213.814.314.013.914.714.518.819.219.318.920.520.520.419.820.019.318.417.418.117.617.216.415.715.616.315.616.516.216.015.515.515.214.115.013.9

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value695669126611652264206372602558644285422539253802365635883334329932303064300530052989299128452818279328062763278328292887289529352993304730103028304650424868
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets16.116.816.316.516.216.915.915.712.312.114.814.714.414.013.813.713.512.512.512.211.811.311.411.110.910.610.110.110.910.911.511.611.912.012.011.911.416.016.1

Goodwill

us-gaap:Goodwill



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-31
Value18698187081870718708186981867218642187471245512455124561245312454124501246412463124621246012458124641246412466124631246812468124381243812437124371243112373123441237412374123761237612376135171351713509
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets43.345.546.147.347.049.649.150.235.835.747.048.249.048.651.751.852.151.052.050.849.346.949.849.248.847.145.445.248.046.849.048.949.448.749.348.846.243.044.744.7

Intangible Assets Net Excluding Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value974104011231206128913721460132952155164174183779873
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.32.52.83.03.23.63.83.60.10.60.70.70.72.52.9

Finite Lived Intangible Assets Net

Deferred Tax Assets Liabilities Net

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1623172516821626153414631615153714241413133313091319125812921163115211871200124012771309148414951471144013391295129212911412140914311461810221086109011171049
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.84.24.14.13.93.94.34.14.14.05.05.15.24.95.44.84.84.95.05.15.14.95.95.95.85.54.94.75.04.95.65.65.757.54.14.34.13.63.5

Liabilities Current

us-gaap:LiabilitiesCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1017794348416815588218274803978336415696563006186516856305106509949555457513351545284589255115414527158155762563955556056569056085594613557215795616183866985
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets23.623.020.820.622.222.021.221.018.419.923.824.020.322.021.221.220.722.321.421.020.922.222.021.420.622.021.020.521.422.822.522.222.324.122.822.823.026.723.1

Notes Payable Current

Long Term Debt Current

us-gaap:LongTermDebtCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value1790110945545523517517744868867121103255
Percentage of LongTermDebtCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.12.70.11.41.31.41.42.02.52.50.00.40.00.00.00.0

Accounts Payable Current

us-gaap:AccountsPayableCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value207122262021196219322182193918241395166115071385137415541325127212041282119412461248130511931178122912291221119512251392119411911226148113381259134718461921
Percentage of AccountsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.85.45.05.04.95.85.14.94.04.85.75.45.46.15.55.35.05.25.05.14.94.94.84.64.84.74.54.34.75.24.74.74.95.85.35.05.05.96.3

Other Liabilities Current

us-gaap:OtherLiabilitiesCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value460731062524272335162499276928472337230521942248136712631218133212711443143214411543143314831494149816951785164115911732162215711677166815241612193223311726
Percentage of OtherLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets10.77.66.26.98.86.67.37.66.76.68.38.75.44.95.15.55.35.96.05.96.15.45.95.95.96.46.56.06.16.56.46.26.76.66.16.47.27.45.7

Liabilities Noncurrent

Long Term Debt

Long Term Debt Noncurrent

us-gaap:LongTermDebtNoncurrent



Period End2020-03-312019-12-31
Value1429912770
Percentage of LongTermDebtNoncurrent100.0100.0
Percentage of Assets33.131.1

Deferred Tax Liabilities Noncurrent

Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value677969795431553556465755539457555362551165796666674668186009606161176172577858715962655527752820287429545374542660256085375440674080407925912597309741164874
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets15.717.013.414.014.215.314.215.415.415.824.825.826.526.624.925.225.625.224.123.923.624.711.111.111.311.219.619.723.222.914.916.116.316.110.310.211.613.116.1

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value16061779173416211451144615181176946994914823881849831853853887941939854965938922894106498595692895894090490592690189991613171515
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.74.34.34.13.73.84.03.12.72.83.43.23.53.33.43.53.63.63.93.83.43.63.73.63.54.03.63.53.63.63.73.63.63.63.63.53.44.25.0

Stockholders Equity

us-gaap:StockholdersEquity



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value90628819973192148739818791038227768070486493591955585259576756815621552256976171674872359893102681056910620935695589469951410947107151054110336119511214912677135571319412903126401268711920
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets21.021.524.023.322.021.724.022.022.120.224.522.921.920.523.923.623.522.623.825.126.727.239.540.541.440.334.134.736.535.843.342.542.140.747.647.947.343.10.00.00.041.939.5

us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value-116-97-87-75-59-52-5535-5616-5699-4718-5243-5342-5441-5546-5038-5132-5224-5320-5099-5181-5290-5356-2878-2886-2921-2984-4543-4635-4723-4787-3334-3395-3434-3490-2176-2173-2187-2757-2930-2987-3002-3014-3642-699
Percentage of StockholdersEquity-1.3-1.1-0.9-0.8-0.7-0.6-60.8-68.3-74.2-66.9-80.7-90.3-97.9-105.5-87.4-90.3-92.9-96.3-89.5-84.0-78.4-74.0-29.1-28.1-27.6-28.1-48.6-48.5-49.9-50.3-30.5-31.7-32.6-33.8-18.2-17.9-17.3-20.3-22.2-23.1-23.8-23.8-30.60.0
Percentage of Assets-0.3-0.2-0.2-0.2-0.1-0.1-14.6-15.0-16.4-13.5-19.8-20.7-21.4-21.7-20.9-21.3-21.8-21.8-21.3-21.1-20.9-20.2-11.5-11.4-11.4-11.3-16.6-16.8-18.2-18.0-13.2-13.5-13.7-13.7-8.7-8.6-8.2-8.80.00.00.0-10.0-12.10.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value000000000441600000000000002928481479212424612924329634433646387344605026593477787827794982648657964510661
Percentage of StockholdersEquity0.00.00.00.00.00.00.00.00.00.60.20.00.00.00.00.00.00.00.00.00.00.00.00.02.88.015.822.226.030.730.132.134.637.537.341.446.857.459.361.665.468.280.90.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.10.10.00.00.00.00.00.00.00.00.00.00.00.00.01.13.25.47.79.511.013.013.614.615.217.819.822.224.80.00.00.028.631.90.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value167168169169170171174174174174174174175175177179181181183188195199203209215218224231235239246248252254266278293291292295301307327338
Percentage of StockholdersEquity1.81.91.71.81.92.11.92.12.32.52.72.93.13.33.13.23.23.33.23.02.92.82.12.02.02.12.42.42.52.52.22.32.42.52.22.32.32.12.22.32.42.42.70.0
Percentage of Assets0.40.40.40.40.40.50.50.50.50.50.70.70.70.70.70.70.80.70.80.80.80.70.80.80.80.80.80.80.90.91.01.01.01.01.11.11.10.90.00.00.01.01.10.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value90118748964991208628806814464136691320511548115461108710824106301062810634106641066110613111641184312392125681294512983125381219611838114961113810739104191007796999401901886378245800576467077673755907387
Percentage of StockholdersEquity99.499.299.299.098.798.5158.9166.1171.9163.8177.8187.3194.7202.1184.3187.2189.7193.1186.3180.9175.5171.3127.0126.1122.8118.1130.4123.9121.4117.198.197.295.693.878.774.268.160.860.759.356.053.146.90.0
Percentage of Assets20.921.323.823.021.721.438.136.638.033.143.543.042.641.544.144.244.643.644.345.546.946.650.251.150.847.544.543.044.442.042.541.340.238.237.535.532.226.20.00.00.022.318.50.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value167168169169170171174174174174174174175175177179181181183188195199203209215218224231235239246248252254266278293291307
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.40.40.40.40.50.50.50.50.50.70.70.70.70.70.70.80.70.80.80.80.70.80.80.80.80.80.80.90.91.01.01.01.01.11.11.10.91.0

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-31
Value9011874896499120862880681446413669132051154811546110871082410630106281063410664106611061311164118431239212568129451298312538121961183811496111381073910419100779699940190188637824567375600
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets20.921.323.823.021.721.438.136.638.033.143.543.042.641.544.144.244.643.644.345.546.946.650.251.150.847.544.543.044.442.042.541.340.238.237.535.532.226.222.318.5

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value-116-97-87-75-59-52-5535-5616-5699-4718-5243-5342-5441-5546-5038-5132-5224-5320-5099-5181-5290-5356-2878-2886-2921-2984-4543-4635-4723-4787-3334-3395-3434-3490-2176-2173-2187-2757-3014
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-0.3-0.2-0.2-0.2-0.1-0.1-14.6-15.0-16.4-13.5-19.8-20.7-21.4-21.7-20.9-21.3-21.8-21.8-21.3-21.1-20.9-20.2-11.5-11.4-11.4-11.3-16.6-16.8-18.2-18.0-13.2-13.5-13.7-13.7-8.7-8.6-8.2-8.8-10.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-993246411391607-9132377812875-2371607938507-4391531738604-601633557626-6541490933572-40212049503281-1051321948-34-1201387978619-531
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-11.528.313.419.0-11.129.110.012.3-3.524.514.37.8-6.823.912.010.1-1.028.79.310.6-11.024.415.69.5-6.919.615.65.20.0-1.720.314.3-0.5-1.816.111.27.0-6.2

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-270-422-250-255-280-458-261-7852-307-260-203-212-214-200-136-171-298-133-64-119-115-288-109-116-132-177-87-44-38169-409-101-911281-380-163-83-135
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-3.1-4.8-2.9-3.0-3.4-5.6-3.2-110.3-4.6-4.0-3.1-3.3-3.3-3.1-2.2-2.9-5.0-2.3-1.1-2.0-1.9-4.7-1.8-1.9-2.3-2.9-1.4-0.7-0.62.7-6.3-1.5-1.419.0-4.4-1.9-0.9-1.6

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2296-924-850-1112462-1568-862-1853-3128000-240-315-485107-638-571-684-473-1108-1246-448-741-898-865-731-642-384-856-711-1084-843166-331-453-648
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues26.6-10.6-10.0-13.25.6-19.2-10.7-26.0-4.6122.1-3.7-4.9-7.61.7-10.4-9.5-11.5-8.3-18.5-21.1-7.5-12.1-15.0-14.3-12.5-10.5-6.2-13.2-10.8-16.5-12.51.9-3.8-5.1-7.5

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-993246411391607-9132377812875-2371607938507-4391531738604-601633557626-6541490933572-40212049503281-1051321948-34-1201387978619-531
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-11.528.313.419.0-11.129.110.012.3-3.524.514.37.8-6.823.912.010.1-1.028.79.310.6-11.024.415.69.5-6.919.615.65.20.0-1.720.314.3-0.5-1.816.111.27.0-6.2

Net Income Loss

us-gaap:NetIncomeLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value868-4099338618633561144689739178645552640525602517556459516531484506473511579478497488489533459480506548520520530376497711469413490394389
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues10.1-4.711.010.210.54.414.19.711.02.79.88.510.08.29.88.69.38.18.69.08.18.37.98.59.97.88.17.88.08.27.37.78.28.47.97.97.94.45.78.15.44.65.94.64.9

us-gaap:ChangeInAccountingEstimateByType

us-gaap:ContractsAccountedForUnderPercentageOfCompletion



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value984699125109134117113923166637569798984777310512271126107128
Percentage of NetIncomeLoss11.3-11.210.614.512.637.610.216.412.417.410.211.411.713.113.117.215.116.814.119.825.214.026.620.922.1
Percentage of Revenues1.10.51.21.51.31.61.41.61.40.51.01.01.21.11.31.51.41.41.21.82.01.22.11.82.2
Percentage of Revenues us-gaap:ContractsAccountedForUnderPercentageOfCompletion0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value868-4099338618636571244789739178645552640525602517556459516531484506473511579489506548520520530376497711469
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0184.6108.7114.5100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues10.1-4.711.010.210.58.115.411.111.02.79.88.510.08.29.88.69.38.18.69.08.18.37.98.59.98.08.28.47.97.97.94.45.78.15.4
Percentage of Revenues us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Depreciation Depletion And Amortization

us-gaap:DepreciationDepletionAndAmortization



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-31
Value29728125824523426625315912215311110710413411310610313811311799140105108109110120
Percentage of DepreciationDepletionAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Inventories

us-gaap:IncreaseDecreaseInInventories



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2-21032124-65293637-227-3210611729-1848189-5013417667-76-3366125-6024-1624-301523-6487
Percentage of IncreaseDecreaseInInventories100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-270-422-250-255-280-458-261-7852-307-260-203-212-214-200-136-171-298-133-64-119-115-288-109-116-132-177-87-44-38169-409-101-911281-380-163-83-135
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-3.1-4.8-2.9-3.0-3.4-5.6-3.2-110.3-4.6-4.0-3.1-3.3-3.3-3.1-2.2-2.9-5.0-2.3-1.1-2.0-1.9-4.7-1.8-1.9-2.3-2.9-1.4-0.7-0.62.7-6.3-1.5-1.419.0-4.4-1.9-0.9-1.6

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2724712572522844632821993052782172172163121371732981371021151172761091166040811641089412246912375103
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2296-924-850-1112462-1568-862-1853-3128000-240-315-485107-638-571-684-473-1108-1246-448-741-898-865-731-642-384-856-711-1084-843166-331-453-648
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues26.6-10.6-10.0-13.25.6-19.2-10.7-26.0-4.6122.1-3.7-4.9-7.61.7-10.4-9.5-11.5-8.3-18.5-21.1-7.5-12.1-15.0-14.3-12.5-10.5-6.2-13.2-10.8-16.5-12.51.9-3.8-5.1-7.5

Proceeds From Issuance Of Long Term Debt

us-gaap:ProceedsFromIssuanceOfLongTermDebt



Period End2020-03-312019-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value223907490000006000000
Percentage of ProceedsFromIssuanceOfLongTermDebt100.00.0100.00.00.00.00.00.00.0100.00.00.00.00.0

Repayments Of Long Term Debt

Payments For Repurchase Of Common Stock

us-gaap:PaymentsForRepurchaseOfCommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3443002131716010541684100261382293984674002823189481091825610757731570456263697585100013117205348507
Percentage of PaymentsForRepurchaseOfCommonStock100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Repayments Of Long Term Debt

Debt Instrument Interest Rate Stated Percentage

us-gaap:DebtInstrument

us-gaap:DebtInstrumentInterestRateStatedPercentage

noc:TwoThousandFifty



Period End2020-03-23
Value0.0525
Percentage of DebtInstrumentInterestRateStatedPercentage100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations noc:TwoThousandFifty0.0

noc:TwoThousandForty2



Period End2020-03-23
Value0.0515
Percentage of DebtInstrumentInterestRateStatedPercentage98.1
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations noc:TwoThousandForty20.0

noc:TwoThousandThirty



Period End2020-03-23
Value0.044
Percentage of DebtInstrumentInterestRateStatedPercentage83.8
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations noc:TwoThousandThirty0.0

Effective Income Tax Rate Continuing Operations

us-gaap:EffectiveIncomeTaxRateContinuingOperations



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.176-0.030.1160.1620.1650.0070000000000000060.0750.1880.1520.116000000000000020.1780.3160.1720.0169999999999999870.2170.2920.178-0.0070000000000000060.2920.2790.313-0.00500000000000000440.3180.3240.2630.310.3260.3130.340.340.331-0.0090000000000000080.3110.340.3460.0320.333-0.0960.327
Percentage of EffectiveIncomeTaxRateContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

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

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

us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod

us-gaap:PerformanceShares



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-30
Value200000.00.00.0200000.00.00.0200000.00.00.0300000.00.00.0300000.00.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod100.00.00.0100.00.00.0100.00.00.0100.00.00.0100.00.0

us-gaap:RestrictedStockUnitsRSU



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-02-282015-03-312014-02-282013-02-28
Value100000.00.00.0100000.00.00.0100000.00.00.0100000.00.00.0200000.00.00.00.0200000.0200000.0200000.0400000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod50.00.00.050.00.00.050.00.00.033.30.00.066.70.00.00.00.00.00.00.0

Share Based Compensation

us-gaap:ShareBasedCompensation



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value183438292642934192824251732242314292323244142292224264331333333343138
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Liabilities

Deferred Tax Assets Net

Unrecognized Tax Benefits

Deferred Tax Assets Valuation Allowance

Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value146915111511127812830
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.00.0

Cash And Cash Equivalents Period Increase Decrease

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

Proceeds From Repayments Of Short Term Debt

noc:NetFASnonservicePensionBenefitExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value3022002002002006691351251207322-17-18
Percentage of NetFASnonservicePensionBenefitExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidationItems

noc:NetFASserviceCASpensionadjustment

us-gaap:MaterialReconcilingItems



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value105119131107108173176137
Percentage of NetFASserviceCASpensionadjustment100.0100.0100.0100.0100.0100.0100.0100.0

noc:OtherComprehensiveIncomeLossForeignCurrencyTranslationandTranslationAdjustmentandOtherNetofTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-920-44-5-3-3-3
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTranslationandTranslationAdjustmentandOtherNetofTax100.0100.00.0100.0100.0100.0100.0100.0100.0

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect



Period End2020-03-312019-03-312018-03-31
Value1033-731-856
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0

us-gaap:CommonStockDividendsPerShareDeclared



Period End2020-03-312019-12-312019-09-302019-05-312019-06-302019-03-312018-12-312018-09-302018-06-302018-05-312018-06-302018-03-312018-01-312017-12-312017-09-302017-05-312017-05-302017-06-302017-03-312016-12-312016-09-302016-05-312016-06-302016-03-312015-12-312015-09-302015-05-312015-06-302015-03-312014-12-312014-09-302014-05-312014-06-302014-03-312013-05-312013-03-312012-09-302012-05-312012-06-302012-03-312011-12-312011-09-302011-05-312011-06-302011-03-312010-12-312010-09-302010-05-312010-06-302010-03-312009-05-312009-06-302009-03-312008-06-302008-03-31
Value1.321.32000000000000031.321.321.321.21.20000000000000021.21.21.21.21.11.11.01.01.01.00.99999999999999990.90.89999999999999990.90000000000000010.90.89999999999999990.80.80000000000000030.79999999999999980.80.80.70.70000000000000020.69999999999999970.70.70000000000000010.610.610.550.550.550.550.50.50.50.50.50.470.470.47000000000000010.470.470.430.430.430.40.40.37
Percentage of CommonStockDividendsPerShareDeclared100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiabilityRevenueRecognized



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value781100209333674100168364706200162272578
Percentage of ContractWithCustomerLiabilityRevenueRecognized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerPerformanceObligationSatisfiedInPreviousPeriod



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value136761421541661931491561336122101145
Percentage of ContractWithCustomerPerformanceObligationSatisfiedInPreviousPeriod100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxesAndTaxCredits



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value156-533-2415335819338-55524126-31-164976-54-3540726-6520414055-19403956231
Percentage of DeferredIncomeTaxesAndTaxCredits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1-1-10-1-5-5-6-5-7-4-6-5
Percentage of DefinedBenefitPlanAmortizationOfPriorServiceCostCredit100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-15-15-15-14-15-14-15-14-15-14-14-14-15
Percentage of DefinedBenefitPlanAmortizationOfPriorServiceCostCredit-1500.01500.01500.00.01500.0280.0300.0233.3300.0200.0350.0233.3300.0

us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanContributionsByEmployer

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value128101212610111110111311
Percentage of DefinedBenefitPlanContributionsByEmployer100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value20157182323522732322525202823
Percentage of DefinedBenefitPlanContributionsByEmployer166.71962.5180.0191.7191.7866.72730.0209.1200.05250.0181.8215.4209.1

us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value26232323232626242522222322
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value594525525526525573571544529471471472471
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets2284.62282.62282.62287.02282.62203.82196.22266.72116.02140.92140.92052.22140.9

us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanInterestCost

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value17202020201820191921212121
Percentage of DefinedBenefitPlanInterestCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value307340340340340320316300290297312312313
Percentage of DefinedBenefitPlanInterestCost1805.91700.01700.01700.01700.01777.81580.01578.91526.31414.31485.71485.71490.5

us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-417010-49-8-6-60222
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost100.0100.00.0100.00.0100.0100.0100.0100.00.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-2001674-108-108-108133-33-25-2110895114115
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost5000.09847.10.0-10800.00.0-271.4412.5416.7350.00.04750.05700.05750.0

us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanServiceCost

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value4444465557565
Percentage of DefinedBenefitPlanServiceCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1029192929210310210099133979797
Percentage of DefinedBenefitPlanServiceCost2550.02275.02300.02300.02300.01716.72040.02000.01980.01900.01940.01616.71940.0

us-gaap:DefinedContributionPlanEmployerDiscretionaryContributionAmount



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value256104988819110710488104779177997083718764776585726374736375756676
Percentage of DefinedContributionPlanEmployerDiscretionaryContributionAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:DividendsCommonStock

us-gaap:RetainedEarnings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value223222226226206206211210195176175177159161162163147149150155142144149151134131128129137139138136138142129
Percentage of DividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount



Period End2020-03-312019-06-302019-03-312018-09-302018-06-302018-03-31
Value130130026
Percentage of EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount100.00.0100.00.00.0100.0

us-gaap:IncomeTaxReconciliationTaxCreditsResearch



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302015-12-312015-09-30
Value414589363130106222075456021
Percentage of IncomeTaxReconciliationTaxCreditsResearch100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-833297687113-480506297168-590580269156-466490-577-364326-8819-88942574167-755-560-635507-91-130-627747129-91-455
Percentage of IncreaseDecreaseInAccountsPayableAndAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccountsReceivable



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value810-785279-334718-254-93-42187-438134208773-369183133514-43311919325-426-4646531195267-370-144-81245106-31-124713
Percentage of IncreaseDecreaseInAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccruedIncomeTaxesPayable



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value10-29-22854140-144-300-11197-99-148-62152-70-751174-26889-52366-11798-176279209169-36-5-28028995-50-234163
Percentage of IncreaseDecreaseInAccruedIncomeTaxesPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInContractWithCustomerAsset



Period End2020-03-312019-03-31
Value584759
Percentage of IncreaseDecreaseInContractWithCustomerAsset100.0100.0

us-gaap:IncreaseDecreaseInPensionAndPostretirementObligations



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-237-281-137-143-142-636-320-71-56-42670798675109104105556062-440-22-3-6147177-48824-47434-26574-22085
Percentage of IncreaseDecreaseInPensionAndPostretirementObligations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-56-3332523-53166-44-13-561-2146-34151-114-1621-32-16-4371769119-5-6-83-40-323
Percentage of IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value000000001011101120212032443443404450443
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value-10-12-12-11-15-15-15
Percentage of OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-30
Value-19-10-12-16-7-3218183835259999105-508949296-2218210966-247883563928864613956-3
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-31
Value-19-10-12-16-7-321-18-18835259999105-508949296-2218210966-2478835636456
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0-22.2-21.7100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherNoncashIncomeExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-03-312010-12-312010-09-30
Value-68816431-385415-21-4262078241762024-2012192561927156-4826-1727
Percentage of OtherNoncashIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForProceedsFromOtherInvestingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-2-49-73-4-5-21-42-18-14-5-2-112-1-20-4-384-2120072-20-35-4-2-712-7-32
Percentage of PaymentsForProceedsFromOtherInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.00.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsOfDividendsCommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value227222223224211205209209198174174175166158160163159145149153156140143148132130127129137140137137138141129
Percentage of PaymentsOfDividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value6320261141791019012131373111171
Percentage of PaymentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.00.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-03-312010-12-312010-09-30
Value-46-1-3-20-1-5-1-21-57-40-10-6-951-10-11-2-679214-29-73-61-9-35-52
Percentage of ProceedsFromPaymentsForOtherFinancingActivities100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromRepaymentsOfCommercialPaper



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value744-399100-713814-301250249000
Percentage of ProceedsFromRepaymentsOfCommercialPaper100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:RepaymentsOfLinesOfCredit



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value7110200300140
Percentage of RepaymentsOfLinesOfCredit100.0100.00.0100.00.0100.0100.00.0

us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation

us-gaap:RetainedEarnings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-45323729-353260-350924-72322218-122202224-370000
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation100.0100.0100.0100.0100.0100.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:ShareRepurchaseProgram

us-gaap:StockRepurchasedAndRetiredDuringPeriodShares

noc:December2018ShareRepurchaseOriginalAuthorization



Period End2020-03-31
Value100000.0
Percentage of StockRepurchasedAndRetiredDuringPeriodShares100.0

noc:September2015ShareRepurchaseOriginalAuthorization



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value0000130000000121000000
Percentage of StockRepurchasedAndRetiredDuringPeriodShares900.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StatementEquityComponents

us-gaap:StockRepurchasedAndRetiredDuringPeriodValue

us-gaap:CommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value110113100001113121675466564121202378
Percentage of StockRepurchasedAndRetiredDuringPeriodValue100.0100.00.0100.0100.0100.0100.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0

us-gaap:RetainedEarnings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value3483022151726210461641500201362153944684022842829391079854538701398000
Percentage of StockRepurchasedAndRetiredDuringPeriodValue34800.030200.00.017200.06200.034866.716400.00.00.00.00.013600.021500.039400.015600.040200.014200.028200.015650.015414.317080.013450.011683.36633.30.00.00.0

us-gaap:StatementEquityComponents

us-gaap:StockholdersEquityOther

us-gaap:RetainedEarnings



Period End2020-03-312019-03-31
Value110
Percentage of StockholdersEquityOther100.00.0

us-gaap:ShareRepurchaseProgram

us-gaap:TreasuryStockAcquiredAverageCostPerShare

noc:December2018ShareRepurchaseOriginalAuthorization



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value306.220.00.00.00.0
Percentage of TreasuryStockAcquiredAverageCostPerShare100.00.00.00.00.0

us-gaap:ShareRepurchaseProgram

us-gaap:TreasuryStockSharesRetired

noc:December2018ShareRepurchaseOriginalAuthorization



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value100000.00.00.00.00.0
Percentage of TreasuryStockSharesRetired100.00.00.00.00.0

noc:PriorServiceCostTaxExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value131721242832
Percentage of PriorServiceCostTaxExpense100.0100.0100.0100.0100.0100.0

noc:RestrictedStockRightsandRestrictedPerformanceStockRightsGrantDateAggregateFairValue



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value87929291119114879291868888878989888790101
Percentage of RestrictedStockRightsandRestrictedPerformanceStockRightsGrantDateAggregateFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccrualForEnvironmentalLossContingencies



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value533531543547473461469463416410416393402385394371377370368374377381381383337338341347
Percentage of AccrualForEnvironmentalLossContingencies100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BalanceSheetLocation

us-gaap:OtherCurrentLiabilities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value1631481631671721591631551511481441241271191151011101131111311481421351321101009298
Percentage of AccrualForEnvironmentalLossContingencies30.627.930.030.536.434.534.833.536.336.134.631.631.630.929.227.229.230.530.235.039.337.335.434.532.629.627.028.2

us-gaap:OtherNoncurrentLiabilities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value370383380380301302306308265262272269275266279270267257257243229239246251227238249249
Percentage of AccrualForEnvironmentalLossContingencies69.472.170.069.563.665.565.266.563.763.965.468.468.469.170.872.870.869.569.865.060.762.764.665.567.470.473.071.8

us-gaap:AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax



Period End2020-03-312019-12-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value-41-51-98539054745560458651165215531754164939504051405241502851245220531628732904293930004553463147104790333333833437348721812203221727623059
Percentage of AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value-157-147-148-145-143-144-140-138-138-136-132-132-128-132-101-95-86-82-72-57-70-41-620201812-3-124-1-132-422727041
Percentage of AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0

us-gaap:AdditionalPaidInCapitalCommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value000000000441600000000000002928481479212424612924329634433646387344605026593477788657
Percentage of AdditionalPaidInCapitalCommonStock0.00.00.00.00.00.00.00.00.0100.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerAssetNetCurrent



Period End2020-03-312019-12-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value5918309731093914356123901704
Percentage of ContractWithCustomerAssetNetCurrent100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiabilityCurrent



Period End2020-03-312019-12-312018-12-312018-09-302017-12-31
Value20272237191716861761
Percentage of ContractWithCustomerLiabilityCurrent100.0100.0100.0100.0100.0

us-gaap:DebtAndCapitalLeaseObligations



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value1610013879139001440014400144001440015100153001526671007100710070706526592859303935
Percentage of DebtAndCapitalLeaseObligations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentFaceAmount



Period End2020-03-23
Value2250
Percentage of DebtInstrumentFaceAmount100.0

us-gaap:DebtInstrument

noc:TwoThousandFifty



Period End2020-03-23
Value1000
Percentage of DebtInstrumentFaceAmount44.4

noc:TwoThousandForty2



Period End2020-03-23
Value500
Percentage of DebtInstrumentFaceAmount22.2

noc:TwoThousandThirty



Period End2020-03-23
Value750
Percentage of DebtInstrumentFaceAmount33.3

us-gaap:Range, us-gaap:AwardType

us-gaap:DeferredCompensationCashbasedArrangementsLiabilityCurrentAndNoncurrent

srt:Maximum, noc:CashUnitsAndCashPerformanceUnits



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value175203203203205205196199
Percentage of DeferredCompensationCashbasedArrangementsLiabilityCurrentAndNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0

srt:Minimum, noc:CashUnitsAndCashPerformanceUnits



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value3136363636363536
Percentage of DeferredCompensationCashbasedArrangementsLiabilityCurrentAndNoncurrent17.717.717.717.717.617.617.918.1

us-gaap:DeferredIncomeTaxAssetsNet



Period End2020-03-312019-12-31
Value355508
Percentage of DeferredIncomeTaxAssetsNet100.0100.0

us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:DerivativeAssetsLiabilitiesAtFairValueNet

us-gaap:FairValueInputsLevel2



Period End2020-03-312019-12-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value-3-3-10-7-51045685
Percentage of DerivativeAssetsLiabilitiesAtFairValueNet100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0

us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value-3-3-5-8-5-10-7-51045685
Percentage of DerivativeAssetsLiabilitiesAtFairValueNet100.0100.00.00.00.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0

us-gaap:EmployeeRelatedLiabilitiesCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value147218651744152814041676164514511204138213091213114113421257111210711195120810971063144112251154105011691058100193811731036102093511961076106294413491281
Percentage of EmployeeRelatedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignCurrencyCashFlowHedgeDerivativeAtFairValueNet



Period End2020-03-312019-12-312019-09-302018-12-31
Value3790
Percentage of ForeignCurrencyCashFlowHedgeDerivativeAtFairValueNet100.0100.0100.00.0

us-gaap:ForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue



Period End2020-03-312019-12-312019-09-302018-12-31
Value859886114
Percentage of ForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue100.0100.0100.0100.0

us-gaap:DebtInstrument

us-gaap:LineOfCredit

noc:TwoYearTermMemberDomain



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value55786070701081171191271341101391101350
Percentage of LineOfCredit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:DebtInstrument

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity

noc:FiveYearTermMemberDomain



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302015-07-312015-07-08
Value20002000200020002000200020001600160016001600160016001600
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

noc:TwoYearTermMemberDomain



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-12-31
Value120120120120156120120120120150120
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity6.06.06.06.07.87.57.57.57.50.00.0

us-gaap:LongTermDebtFairValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value1750015100152001540014800143001430015100154001600078007800760076006900
Percentage of LongTermDebtFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LossContingencyRangeOfPossibleLossPortionNotAccrued



Period End2020-03-312019-12-312018-12-31
Value448448374
Percentage of LossContingencyRangeOfPossibleLossPortionNotAccrued100.0100.0100.0

us-gaap:MarketableSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value308382367353363335375364353
Percentage of MarketableSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueInputsLevel1



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value288364351337347319360350347352
Percentage of MarketableSecurities93.595.395.695.595.695.296.096.20.099.7

us-gaap:FairValueInputsLevel2



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value4100010011
Percentage of MarketableSecurities1.30.30.00.00.00.30.00.00.00.3

us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value288364351337347319360350352
Percentage of MarketableSecurities93.595.395.695.595.695.296.096.299.7

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value410001001
Percentage of MarketableSecurities1.30.30.00.00.00.30.00.00.3

us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsNonrecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value16171616161515140
Percentage of MarketableSecurities5.24.54.44.54.44.54.03.80.0

us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value292365351337347320360350348353
Percentage of MarketableSecurities94.895.595.695.595.695.596.096.20.0100.0

us-gaap:OperatingLeaseLiabilityNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value128013081304108110980
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.00.0

us-gaap:RecordedThirdPartyEnvironmentalRecoveriesAmount



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-31
Value439436423426353343348236211207210202207195196189192186193
Percentage of RecordedThirdPartyEnvironmentalRecoveriesAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BalanceSheetLocation

us-gaap:OtherCurrentAssets



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value1311281331391247979
Percentage of RecordedThirdPartyEnvironmentalRecoveriesAmount29.830.331.239.435.633.537.4

us-gaap:OtherNoncurrentAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value308317295293214216224157132131135129136128133133130
Percentage of RecordedThirdPartyEnvironmentalRecoveriesAmount70.272.769.768.860.663.064.466.562.663.364.363.965.765.667.970.467.7

Line plots across dimensions of each concept

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


us-gaap:Revenues us-gaap:MajorCustomers


us-gaap:Revenues us-gaap:ProductOrService


us-gaap:Revenues us-gaap:StatementGeographical


us-gaap:Revenues us-gaap:ContractWithCustomerBasisOfPricing


us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService


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


us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems


us-gaap:StockholdersEquity us-gaap:StatementEquityComponents


us-gaap:StockholdersEquity us-gaap:StatementEquityComponents


us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument