MRK


Line plots across dimensions of each concept
Tables

Table of contents



us-gaap:CommonStockValue

us-gaap:CommonStockParOrStatedValuePerShare

us-gaap:CommonStockSharesIssued
us-gaap:StatementEquityComponents

us-gaap:CommonStockSharesAuthorized

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:Revenues
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:ProductOrService, us-gaap:StatementGeographical, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementGeographical
us-gaap:ConsolidationItems, us-gaap:StatementGeographical, us-gaap:StatementBusinessSegments
us-gaap:CounterpartyName, us-gaap:IncomeStatementLocation, us-gaap:TypeOfArrangement
us-gaap:DerivativeInstrumentRisk, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents
us-gaap:StatementGeographical

us-gaap:CostOfGoodsAndServicesSold
us-gaap:CounterpartyName, us-gaap:IncomeStatementLocation, us-gaap:TypeOfArrangement

us-gaap:ResearchAndDevelopmentExpense
us-gaap:ConsolidationItems
us-gaap:CounterpartyName, us-gaap:IncomeStatementLocation, us-gaap:TypeOfArrangement

us-gaap:SellingGeneralAndAdministrativeExpense
us-gaap:CounterpartyName, us-gaap:IncomeStatementLocation, us-gaap:TypeOfArrangement

us-gaap:InterestExpense
us-gaap:ConsolidationItems

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:IncomeTaxExpenseBenefit

us-gaap:ProfitLoss

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:Assets

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity

us-gaap:AssetsCurrent

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:AccountsReceivableNetCurrent
us-gaap:CounterpartyName, us-gaap:BalanceSheetLocation, us-gaap:TypeOfArrangement
us-gaap:ReceivablesNetCurrent

us-gaap:InventoryNet

us-gaap:InventoryFinishedGoods

us-gaap:InventoryLIFOReserve

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:Goodwill
us-gaap:BusinessAcquisition

us-gaap:IntangibleAssetsNetExcludingGoodwill
us-gaap:ProductOrService, us-gaap:BalanceSheetLocation
us-gaap:FiniteLivedIntangibleAssetsNet
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:OtherAssetsNoncurrent
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument

us-gaap:LiabilitiesCurrent
us-gaap:CounterpartyName, us-gaap:BalanceSheetLocation, us-gaap:TypeOfArrangement

us-gaap:DebtCurrent

us-gaap:AccountsPayableCurrent

us-gaap:AccruedIncomeTaxesCurrent

us-gaap:OtherLiabilitiesCurrent

us-gaap:DividendsPayableCurrent
us-gaap:CounterpartyName, us-gaap:BalanceSheetLocation, us-gaap:TypeOfArrangement
us-gaap:LiabilitiesNoncurrent

us-gaap:LongTermDebtNoncurrent

us-gaap:MinorityInterest

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:StockholdersEquity

us-gaap:CommonStockValue

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:TreasuryStockValue

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:ProfitLoss

us-gaap:DepreciationDepletionAndAmortization
us-gaap:ConsolidationItems

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:ProceedsFromIssuanceOfLongTermDebt

us-gaap:RepaymentsOfLongTermDebt

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:RepaymentsOfLongTermDebt

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

us-gaap:ShareBasedCompensation

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:ProceedsFromRepaymentsOfShortTermDebt
us-gaap:ConsolidationItems
mrk:AmortizationOfPurchaseAccountingAdjustments
us-gaap:CounterpartyName, us-gaap:IncomeStatementLocation, us-gaap:TypeOfArrangement
mrk:CollaborativeArrangementProfitSharing
us-gaap:CounterpartyName, us-gaap:IncomeStatementLocation, us-gaap:TypeOfArrangement
mrk:CollaborativeArrangementSalesNet
us-gaap:CounterpartyName, us-gaap:ProductOrService, us-gaap:TypeOfArrangement
mrk:ContingentPaymentsCollaborativeArrangement
us-gaap:CounterpartyName, us-gaap:TypeOfArrangement

mrk:CostsExpensesAndOther
us-gaap:CounterpartyName
mrk:Licenseoptionpaymentrelatedtocollaborativearrangement
us-gaap:CounterpartyName, us-gaap:StatementScenario
us-gaap:CounterpartyName, us-gaap:ProductOrService, us-gaap:SubsequentEventType, us-gaap:TypeOfArrangement
mrk:MilestonePaymentsMadetoCollaborativePartner
us-gaap:CounterpartyName, us-gaap:ProductOrService, us-gaap:TypeOfArrangement

mrk:Noncontrollinginterestchangesinownershipinterestother
us-gaap:StatementEquityComponents

mrk:OtherNonoperatingIncomeExpenseOther

mrk:RestructuringReserveNoncashActivity
us-gaap:RestructuringCostAndReserve

mrk:SalesDiscounts
us-gaap:ConsolidationItems
mrk:SegmentReportingUnallocatedOtherExpensesNet

us-gaap:AccountsReceivableSale

us-gaap:AllocatedShareBasedCompensationExpenseNetOfTax

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
us-gaap:DerivativeInstrumentRisk, us-gaap:IncomeStatementLocation
us-gaap:ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1
us-gaap:DerivativeInstrumentRisk, us-gaap:IncomeStatementLocation
us-gaap:ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge1

us-gaap:CommonStockDividendsPerShareDeclared

us-gaap:DeferredIncomeTaxExpenseBenefit
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanCostOfProvidingSpecialOrContractualTerminationBenefitRecognizedDuringPeriod
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanInterestCost
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToCurtailments
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanServiceCost
us-gaap:RetirementPlanType
us-gaap:DerivativeInstrumentRisk, us-gaap:IncomeStatementLocation
us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet

us-gaap:DividendsCommonStockCash
us-gaap:StatementEquityComponents

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense

us-gaap:EquitySecuritiesFvNiGainLoss

us-gaap:EquitySecuritiesFvNiUnrealizedGainLoss

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements

us-gaap:ForeignCurrencyTransactionGainLossBeforeTax

us-gaap:GoodwillAndIntangibleAssetImpairment

us-gaap:IncreaseDecreaseInOperatingCapital

us-gaap:InterestPaid

us-gaap:InvestmentIncomeInterest
us-gaap:ConsolidationItems

us-gaap:NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent

us-gaap:OciBeforeReclassificationsBeforeTaxAttributableToParent
us-gaap:StatementEquityComponents

us-gaap:OciBeforeReclassificationsNetOfTaxAttributableToParent
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent
us-gaap:DerivativeInstrumentRisk
us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax
us-gaap:DerivativeInstrumentRisk
us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax
us-gaap:DerivativeInstrumentRisk
us-gaap:OtherComprehensiveIncomeLossNetInvestmentHedgeGainLossBeforeReclassificationAndTax
us-gaap:DerivativeInstrumentRisk, us-gaap:IncomeStatementLocation
us-gaap:OtherComprehensiveIncomeLossNetInvestmentHedgeGainLossReclassificationBeforeTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
us-gaap:StatementEquityComponents

us-gaap:OtherNoncashIncomeExpense

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsForRestructuring
us-gaap:RestructuringCostAndReserve

us-gaap:PaymentsOfDividendsCommonStock
us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType
us-gaap:PaymentsToAcquireBusinessesGross

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired
us-gaap:CounterpartyName, us-gaap:StatementScenario
us-gaap:PaymentsToAcquireIntangibleAssets

us-gaap:PaymentsToAcquireMarketableSecurities

us-gaap:PaymentsToAcquireProductiveAssets

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProceedsFromSaleMaturityAndCollectionsOfInvestments

us-gaap:ProceedsFromSaleOfIntangibleAssets

us-gaap:ProceedsFromStockOptionsExercised

us-gaap:ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent
us-gaap:StatementEquityComponents

us-gaap:ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent
us-gaap:StatementEquityComponents

us-gaap:ReclassificationFromAociCurrentPeriodTax
us-gaap:StatementEquityComponents

us-gaap:RestructuringAndRelatedCostIncurredCost

us-gaap:RestructuringCharges
us-gaap:ConsolidationItems
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

us-gaap:StockholdersEquityOther
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:StockholdersEquityOtherShares
us-gaap:StatementEquityComponents
us-gaap:TreasuryStockSharesAcquired

us-gaap:TreasuryStockValueAcquiredCostMethod
us-gaap:StatementEquityComponents

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment

mrk:DebtSecuritiesandEquitySecuritiesFVNI

mrk:InventoryNetAndInventoryNoncurrent
us-gaap:StatementScenario
mrk:LesseeOperatingLeaseLeaseNotyetCommencedAmount

us-gaap:AdditionalPaidInCapitalCommonStock

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

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
us-gaap:FinancialInstrument

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
us-gaap:FinancialInstrument

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
us-gaap:FinancialInstrument

us-gaap:AvailableForSaleSecuritiesDebtSecurities
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
us-gaap:FinancialInstrument

us-gaap:BusinessCombinationContingentConsiderationLiability
us-gaap:AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyType
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency
us-gaap:BusinessAcquisition, us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIndefiniteLivedIntangibleAssets
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:CashEquivalentsAtCarryingValue
us-gaap:DebtInstrument
us-gaap:DebtInstrumentFaceAmount

us-gaap:DebtInstrumentFairValue

us-gaap:DebtLongtermAndShorttermCombinedAmount

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:DeferredIncomeTaxesAndOtherAssetsCurrent

us-gaap:DeferredIncomeTaxesAndOtherAssetsNoncurrent

us-gaap:DerivativeAssetFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection

us-gaap:DerivativeAssetNotOffsetPolicyElectionDeduction

us-gaap:DerivativeAssets
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency
us-gaap:HedgingDesignation

us-gaap:DerivativeCollateralObligationToReturnCash

us-gaap:DerivativeLiabilities
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency
us-gaap:HedgingDesignation

us-gaap:DerivativeLiabilityFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection

us-gaap:DerivativeLiabilityNotOffsetPolicyElectionDeduction

us-gaap:DerivativeNotionalAmount
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeInstrumentRisk
us-gaap:HedgingDesignation

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

us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueAmount
us-gaap:BalanceSheetLocation
us-gaap:HedgedLiabilityFairValueHedge
us-gaap:BalanceSheetLocation
us-gaap:HedgedLiabilityFairValueHedgeCumulativeIncreaseDecrease

us-gaap:InventoryGross

us-gaap:InventoryNoncurrent
us-gaap:PublicUtilitiesInventory

us-gaap:InventoryWorkInProcessAndRawMaterials
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:LiabilitiesFairValueDisclosure
us-gaap:FairValueByMeasurementFrequency
us-gaap:ValuationAllowancesAndReservesType
us-gaap:LitigationReserve

us-gaap:MarketableSecuritiesCurrent

us-gaap:MarketableSecuritiesNoncurrent
us-gaap:DerivativeInstrumentRisk
us-gaap:NumberOfInterestRateDerivativesHeld
us-gaap:DerivativeInstrumentRisk, us-gaap:LongtermDebtType

us-gaap:OtherInventorySupplies

us-gaap:RestrictedCashAndCashEquivalents

us-gaap:RestructuringAndRelatedCostExpectedCost1
us-gaap:StatementScenario

us-gaap:RestructuringReserve
us-gaap:RestructuringCostAndReserve

us-gaap:StockholdersEquityBeforeTreasuryStock

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:StatementEquityComponents
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:TradingSecurities
us-gaap:FairValueByMeasurementFrequency

us-gaap:TreasuryStockShares

Tables

  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:CommonStockValue ██████████████████████████████████████▆▆▁17881788178817881788178817881788178817881788178817881788178817881788178817881788178817881788178817881788178817881788178817881788178817881788178817881788178617861781NANANA
us-gaap:CommonStockParOrStatedValuePerShare ▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄0.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.5NANANA
us-gaap:CommonStockSharesIssued ██████████████████████████████████████▆▅▁35773577357735773577357735773577357735773577357735773577357735773577357735773577357735773577357735773577357735773577357735773576357635763576357635763576357235713562NANANA
 us-gaap:CommonStockSharesIssued us-gaap:StatementEquityComponents us-gaap:CommonStock███████████████████████████████▆█▆█▆█▆▁357735773577357735773577357735773577357735773577357735773577357735773577357735773577357735773577357735773577357735773577357735763577357635773576357735763573NA3563NANANA
 us-gaap:CommonStockSharesIssued us-gaap:StatementEquityComponents us-gaap:TreasuryStock███▇▇▇▆▆▆▆▅▅▅▅▅▅▅▅▅▄▄▄▄▃▃▃▃▂▂▂▂▂▂▁▁▁▁▁▁1053103810261010994985918907885880851850837828815811808796775753749739716677648650651560550533538535536525494492495497492NA454NANANA
us-gaap:CommonStockSharesAuthorized ▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄65006500650065006500650065006500650065006500650065006500650065006500650065006500650065006500650065006500650065006500650065006500650065006500650065006500650065006500NANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding 2547NA257225882603NA267826962710NA272727522766NA278627892795NA283628502865NA291129492971296030103053NA307930723074NA309131103104NA310131253141NA21132110NA
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic 2533NA255825742585NA266226832695NA272727342745NA276527682774NA281428262835NA287929172934292729773022NA304530413043NA307030863084NA307831053114NA21092108NA
us-gaap:EarningsPerShareBasic ▅▄▄▄▄▄▄▃▃▁▂▄▃▁▄▃▃▃▃▂▃█▃▃▃▃▃▃▃▃▃▃▃▃▃▃▁▂▂▂█▆▄▃1.270.92999999999999970.741.041.130.70.730.640.27-0.38-0.020.710.56-0.209999999999999960.790.440.410.35000000000000010.650.240.342.540.310.690.580.380.30.530.29999999999999980.570.590.570.50.550.650.34-0.169999999999999980.110.240.12.641.620.740.67
us-gaap:EarningsPerShareDiluted ▅▄▄▄▄▃▄▃▃▁▂▄▃▁▄▃▃▃▃▂▃█▃▃▃▃▃▃▃▃▃▃▃▃▃▃▂▂▂▂█▆▄▃1.260.91999999999999990.741.031.120.690.730.630.27-0.38-0.020.710.56-0.21000000000000020.780.430.40.34000000000000010.640.240.332.50.310.680.570.380.30.520.290000000000000040.560.580.560.490.550.650.34-0.159999999999999980.110.240.092.62000000000000061.610.740.67
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:Revenues █▇█▇▆▇▆▆▆▆▆▆▅▆▆▅▅▆▆▅▅▆▆▇▆▇▇▆▇▇█▇███▇█▇▇▇▆▂▂▁1205711868123971176010816109981079410465100371043310325993094341011510536984493121021510073978594251048210557109341026411032110101067111737114881231111731122941202212151115801209311124113461142210093604958995385
 us-gaap:Revenues us-gaap:ConsolidationItems us-gaap:OperatingSegments▇▇█▇▅▅▅▄▃▄▄▃▁▃▄▂▁▃▃▂▁▄▄11892116971226311632107271092110734104281006810373102569815921899051042096799009101089771947591951047110455NANANANANANANANANANANANANANANANANANANANANA
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  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
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us-gaap:StockholdersEquity ▁▁▁▁▁▁▂▂▃▃▄▄▄▄▅▅▅▅▅▅▆▆▅▆▆▆▆▇▇▇▇▇▇▇▇▇▇▇▇██2620525907268382763527539267013242232529336683433638248394633983740088437444335743806446764558746448477654864745224483584997547419475005302953020557475519454860545175514055496543845437655592552315787859058NANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:AssetsCurrent ▂▂▂▁▂▂▂▁▁▁▃▃▄▄▃▃▃▃▃▃▅▅▅▅█▇▆▆▅▆▆▅▅▅▄▄▃▃▂▃▃2617427483261422429825351258752683624064240852476627919281673153030614294402792628772297642856728319329273317334723335874124037765369953524434857362293563934344331813410932368310242906427756262532824428428NANANA
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us-gaap:PropertyPlantAndEquipmentNet ▅▄▄▃▃▂▂▂▂▂▁▁▁▁▁▁▁▂▂▂▂▂▃▃▄▅▅▅▆▅▅▆▆▆▆▆▇▇▇██1526915053142871386213506132911275512626125611243912189120941204212026120291198712360125071248212630129101313613438138931429615323156831580216030158841586716124162971638316671168331708217115173341798518273NANANA
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us-gaap:IntangibleAssetsNetExcludingGoodwill ▂▂▁▁▁▁▁▁▁▂▂▂▂▂▃▃▃▃▃▄▄▃▃▂▃▄▄▄▄▅▅▅▅▆▆▆▆▇▇██1609614196123071338110999114311217512898135001418315138161191686317305205062031521364226022372424750260802038620395188302051725002263332810829083303253162033000343023582237065379063945642954432814557447655NANANA
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us-gaap:DividendsPayableCurrent ██▅▆▆▆▃▃▄▄▃▃▃▃▃▃▃▃▃▃▃▃▃▃▄▃▃▄▄▃▃▃▃▁▁▁▁▁▁▁▁15851587143414391462145813041309131713201302130113141316129212921307130912881295130613081288130313271289128613381343131513081281128111661176117711761175118211891189NANANA
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us-gaap:StockholdersEquity ▁▁▁▁▁▁▂▂▃▃▄▄▄▄▅▅▅▅▅▅▆▆▅▆▆▆▆▇▇▇▇▇▇▇▇▇▇▇▇██2620525907268382763527539267013242232529336683433638248394633983740088437444335743806446764558746448477654864745224483584997547419475005302953020557475519454860545175514055496543845437655592552315787859058NANANA
us-gaap:CommonStockValue ██████████████████████████████████████▆▆▁17881788178817881788178817881788178817881788178817881788178817881788178817881788178817881788178817881788178817881788178817881788178817881788178817881788178617861781NANANA
us-gaap:RetainedEarningsAccumulatedDeficit █▇▆▆▅▄▄▄▃▄▅▆▅▅▇▆▆▆▆▆▆▇▃▃▂▃▃▃▃▃▃▂▂▂▂▁▁▂▃▃▄4827246602458044529544065425794218941523411074135043701450464438744133460284512145192453484566045103456924602139989403663966139773399154027239985403903995039441389903876338243374003753639245400814051141404NANANA
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  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▃█▇▆▄▇▆▆▄▇▁▆▃▇▆▄▅▇▆▅▅▁▇▅▅707479442263084133635922793338211554015-1171331728636322971161521584247330525852284-1164434823152361NANA23411809313929202154323345772852172135392591332413662242-312749712
us-gaap:NetCashProvidedByUsedInInvestingActivities ▄▄▄▃▅▅▅▅▄▄▅▄▆▃▄▄▅▄▄▆▁█▂▄▂-1628-763191-242536821781660673-197-58671-11273193-2563-890-14981741-617-612525-66057204-3722-49-3807NANA-1153-4398-1839-298-270-1684-263-1048105-1007194463-3148-128641201126181390
us-gaap:NetCashProvidedByUsedInFinancingActivities ▅▅▄▅▅▃▅▄▄▃▆▃▆▅▅▄▄▄▄▃█▁▆▂▆-1490-2011-3152-2084-1614-5566-1905-2967-2722-5785536-62181461-1977-835-3381-2851-2407-2533-54855155-96431279-83691620NANA-1421-1218-738-586-725-2231-2244-1257-1172-1294-1625-3463942-1849-23722975-391
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▃█▇▆▄▇▆▆▄▇▁▆▃▇▆▄▅▇▆▅▅▁▇▅▅707479442263084133635922793338211554015-1171331728636322971161521584247330525852284-1164434823152361NANA23411809313929202154323345772852172135392591332413662242-312749712
us-gaap:NetIncomeLoss ▅▄▃▄▄▃▄▃▂▁▂▄▃▁▄▃▃▃▃▂▃█▃▄▃▃▃▃▃▃▃▃▃▃▄▃▁▂▃▂▇▅▃▃32192356190126702915182719501707736-1046-5619461551-5952184120511259771826687953731689520041705112490615939071729179317381512169220241043-5313417522986495342415561425
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us-gaap:ProfitLoss ▅▄▃▄▄▃▄▃▂▁▂▄▃▁▄▃▃▃▃▂▃█▃▄▃▃▃▃▃▃▃▃▃▃▄▃▁▂▃▂▇▅▃▃32192363190726442862177819581716741-1038-5119511556-5872188120911309821831688958732784220331731115093516169491763182017671543172420541071-5003717803306524345515881455
us-gaap:DepreciationDepletionAndAmortization ▁▂▁▂▂▃▃▄▃▃▃▄▄▄▄▆▇▇▇▇▇▇▇██82193684597389810951061122611371128115411621193115511751550156115601570160816371573161117531754NANA16741661172318041790186119031832183118661879194716871249393489443
 us-gaap:DepreciationDepletionAndAmortization us-gaap:ConsolidationItems us-gaap:MaterialReconcilingItems▂▃▂▄▂▁▁▁▂▁▁▁▂▂▂▄▄▃▃▃▃▇█381404382427359328324332350342334332370357365438430398383393396557595NANANANANANANANANANANANANANANANANANANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ▄▄▄▃▅▅▅▅▄▄▅▄▆▃▄▄▅▄▄▆▁█▂▄▂-1628-763191-242536821781660673-197-58671-11273193-2563-890-14981741-617-612525-66057204-3722-49-3807NANA-1153-4398-1839-298-270-1684-263-1048105-1007194463-3148-128641201126181390
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us-gaap:NetCashProvidedByUsedInFinancingActivities ▅▅▄▅▅▃▅▄▄▃▆▃▆▅▅▄▄▄▄▃█▁▆▂▆-1490-2011-3152-2084-1614-5566-1905-2967-2722-5785536-62181461-1977-835-3381-2851-2407-2533-54855155-96431279-83691620NANA-1421-1218-738-586-725-2231-2244-1257-1172-1294-1625-3463942-1849-23722975-391
us-gaap:ProceedsFromIssuanceOfLongTermDebt ▁▁▁▁█▁▁▁▁000049580000NANANANA10710800-2-179413145010NANANANANANANANANANANA19930NANA00NANA
us-gaap:RepaymentsOfLongTermDebt ▃▁▁▁▁▂▁▃▂▂▁▁▁▁▁▃▂▁▁▁▄█▁▁▁195100001280-12005100380201300035150085110329026610223NANA50618202270121261465163362201707
us-gaap:PaymentsForRepurchaseOfCommonStock ▂▂▃▂▂█▂▃▁▃▁▂▂▂▂▂▂▂▂▂▂▃▄▄▂128110501405123510905933996159656617021591134101910168456609131181128170910151620267022461167NANA58011524545294565621045NANA0296NANANANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:RepaymentsOfLongTermDebt ▃▁▁▁▁▂▁▃▂▂▁▁▁▁▁▃▂▁▁▁▄█▁▁▁195100001280-12005100380201300035150085110329026610223NANA50618202270121261465163362201707

Common Stock Value

us-gaap:CommonStockValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value17881788178817881788178817881788178817881788178817881788178817881788178817881788178817881788178817881788178817881788178817881788178817881788178817881788178817861786178129
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.12.12.12.12.22.22.12.12.12.02.01.91.91.91.81.91.81.81.81.71.71.81.81.81.61.71.71.71.71.71.71.71.71.71.71.71.71.71.71.71.61.60.1

Common Stock Par Or Stated Value Per Share

us-gaap:CommonStockParOrStatedValuePerShare



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
Value0.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.01
Percentage of CommonStockParOrStatedValuePerShare100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Shares Issued

Common Stock Shares Issued

us-gaap:CommonStockSharesIssued



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value3577357735773577357735773577357735773577357735773577357735773577357735773577357735773577357735773577357735773577357735773577357735763576357635763576357635763572357135622983
Percentage of CommonStockSharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:CommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-312008-12-31
Value357735773577357735773577357735773577357735773577357735773577357735773577357735773577357735773577357735773577357735773577357735773576357735763577357635773576357335632984
Percentage of CommonStockSharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TreasuryStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-312008-12-31
Value1053103810261010994985918907885880851850837828815811808796775753749739716677648650650651560550533538535536525494492495497492454876
Percentage of CommonStockSharesIssued29.429.028.728.227.827.525.725.424.724.623.823.823.423.122.822.722.622.321.721.120.920.720.018.918.118.218.218.215.715.414.915.015.015.014.713.813.813.813.913.812.729.4

Common Stock Shares Authorized

us-gaap:CommonStockSharesAuthorized



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
Value6500650065006500650065006500650065006500650065006500650065006500650065006500650065006500650065006500650065006500650065006500650065006500650065006500650065006500650065005400
Percentage of CommonStockSharesAuthorized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value254725722588260326782696271027272752276627862789279528362850286529112949297129603010305330793072307430913110310431013125314121132110
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value253325582574258526622683269527272734274527652768277428142826283528792917293429272977302230453041304330703086308430783105311421092108
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value1.270.92999999999999970.741.041.130.70.730.640.27-0.38-0.020.710.56-0.209999999999999960.790.440.410.35000000000000010.650.240.342.540.310.690.580.380.30.530.29999999999999980.570.590.570.50.550.650.34-0.169999999999999980.110.240.12.641.620.740.67
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value1.260.91999999999999990.741.031.120.690.730.630.27-0.38-0.020.710.56-0.21000000000000020.780.430.40.34000000000000010.640.240.332.50.310.680.570.380.30.520.290000000000000040.560.580.560.490.550.650.34-0.159999999999999980.110.240.092.62000000000000061.610.740.67
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Revenues

us-gaap:Revenues



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value1205711868123971176010816109981079410465100371043310325993094341011510536984493121021510073978594251048210557109341026411032110101067111737114881231111731122941202212151115801209311124113461142210093604958995385
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value16517113412889776037-31606911521621011616530310730231023011102
Percentage of Revenues1.41.41.11.10.80.70.60.4-0.30.60.71.22.32.11.11.73.31.03.03.22.40.11.0
Percentage of Revenues1.41.41.11.10.80.70.60.4-0.30.60.71.22.32.11.11.73.31.03.03.22.40.11.0
Percentage of Revenues us-gaap:CorporateNonSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value11892116971226311632107271092110734104281006810373102569815921899051042096799009101089771947591951047110455
Percentage of Revenues98.698.698.998.999.299.399.499.6100.399.499.398.897.797.998.998.396.799.097.096.897.699.999.0
Percentage of Revenues98.698.698.998.999.299.399.499.6100.399.499.398.897.797.998.998.396.799.097.096.897.699.999.0
Percentage of Revenues us-gaap:OperatingSegments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidationItems, us-gaap:ProductOrService, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, mrk:Adempas, mrk:Pharmaceuticalsegment



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
Value5611710710490919475687970678449484033
Percentage of Revenues0.51.00.90.90.80.80.90.70.70.80.70.70.90.50.50.40.4
Percentage of Revenues0.51.00.90.90.80.80.90.70.70.80.70.70.90.50.50.40.4
Percentage of Revenues us-gaap:OperatingSegments mrk:Adempas mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:AllianceRevenueAdempas, mrk:Pharmaceuticalsegment



Period End2020-03-312019-03-31
Value5342
Percentage of Revenues0.40.4
Percentage of Revenues0.40.4
Percentage of Revenues us-gaap:OperatingSegments mrk:AllianceRevenueAdempas mrk:Pharmaceuticalsegment100.0100.0

us-gaap:OperatingSegments, mrk:AlliancerevenueLynparza, mrk:Pharmaceuticalsegment



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
Value145131123111796249443315500
Percentage of Revenues1.21.11.00.90.70.60.50.40.30.10.00.00.0
Percentage of Revenues1.21.11.00.90.70.60.50.40.30.10.00.00.0
Percentage of Revenues us-gaap:OperatingSegments mrk:AlliancerevenueLynparza mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0

us-gaap:OperatingSegments, mrk:Arcoxia, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value706772757586838483918089103108114117111110123115123119132
Percentage of Revenues0.60.60.60.60.70.80.80.80.80.90.80.91.11.11.11.21.21.11.21.21.31.11.3
Percentage of Revenues0.60.60.60.60.70.80.80.80.80.90.80.91.11.11.11.21.21.11.21.21.31.11.3
Percentage of Revenues us-gaap:OperatingSegments mrk:Arcoxia mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Atozet, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value12210897929489841017354596349503933
Percentage of Revenues1.00.90.80.80.90.80.81.00.70.50.60.60.50.50.40.3
Percentage of Revenues1.00.90.80.80.90.80.81.00.70.50.60.60.50.50.40.3
Percentage of Revenues us-gaap:OperatingSegments mrk:Atozet mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Belsomra, mrk:Pharmaceuticalsegment



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
Value79838076676966715460565242
Percentage of Revenues0.70.70.60.60.60.60.60.70.50.60.50.50.4
Percentage of Revenues0.70.70.60.60.60.60.60.70.50.60.50.50.4
Percentage of Revenues us-gaap:OperatingSegments mrk:Belsomra mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Bridion, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value29931428427825525621724020420918516314813913911390918987859590
Percentage of Revenues2.52.62.32.42.42.32.02.32.02.01.81.61.61.41.31.11.00.90.90.90.90.90.9
Percentage of Revenues2.52.62.32.42.42.32.02.32.02.01.81.61.61.41.31.11.00.90.90.90.90.90.9
Percentage of Revenues us-gaap:OperatingSegments mrk:Bridion mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Cancidas, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value5558626761697987919594112121152142131133137139134163176183
Percentage of Revenues0.50.50.50.60.60.60.70.80.90.90.91.11.31.51.31.31.41.31.41.41.71.71.7
Percentage of Revenues0.50.50.50.60.60.60.70.80.90.90.91.11.31.51.31.31.41.31.41.41.71.71.7
Percentage of Revenues us-gaap:OperatingSegments mrk:Cancidas mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:CompanionAnimals, mrk:AnimalHealthsegment



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
Value475345396453414352361457413313345373361
Percentage of Revenues3.92.93.23.93.83.23.34.44.13.03.33.83.8
Percentage of Revenues3.92.93.23.93.83.23.34.44.13.03.33.83.8
Percentage of Revenues us-gaap:OperatingSegments mrk:CompanionAnimals mrk:AnimalHealthsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:CozaarHyzaar, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value71216587296105103125122124128119
Percentage of Revenues0.61.80.50.60.91.01.01.21.21.21.21.2
Percentage of Revenues0.61.80.50.60.91.01.01.21.21.21.21.2
Percentage of Revenues us-gaap:OperatingSegments mrk:CozaarHyzaar mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Cubicin, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value46505267888095949892911039611832035729232232529318777
Percentage of Revenues0.40.40.40.60.80.70.90.91.00.90.91.01.01.23.03.63.13.23.23.02.00.10.1
Percentage of Revenues0.40.40.40.60.80.70.90.91.00.90.91.01.01.23.03.63.13.23.23.02.00.10.1
Percentage of Revenues us-gaap:OperatingSegments mrk:Cubicin mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Emend, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value435298121117126123148125143137143133144137143126139141134122151136
Percentage of Revenues0.40.40.81.01.11.11.11.41.21.41.31.41.41.41.31.51.41.41.41.41.31.41.3
Percentage of Revenues0.40.40.81.01.11.11.11.41.21.41.31.41.41.41.31.51.41.41.41.41.31.41.3
Percentage of Revenues us-gaap:OperatingSegments mrk:Emend mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:FollistimAq, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value4159626357706070676672798187101739495951118210397
Percentage of Revenues0.30.50.50.50.50.60.60.70.70.60.70.80.90.91.00.71.00.90.91.10.91.00.9
Percentage of Revenues0.30.50.50.50.50.60.60.70.70.60.70.80.90.91.00.71.00.90.91.10.91.00.9
Percentage of Revenues us-gaap:OperatingSegments mrk:FollistimAq mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:GardasilGardasil9, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value109769313208868388341048608660633675469532542860
Percentage of Revenues9.15.810.67.57.77.69.75.86.66.16.54.75.65.48.2
Percentage of Revenues9.15.810.67.57.77.69.75.86.66.16.54.75.65.48.2
Percentage of Revenues us-gaap:OperatingSegments mrk:GardasilGardasil9 mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:ImplanonNexplanon, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value195206199183199168186174174183155178170160148164134151176124137123158
Percentage of Revenues1.61.71.61.61.81.51.71.71.71.81.51.81.81.61.41.71.41.51.71.31.51.21.5
Percentage of Revenues1.61.71.61.61.81.51.71.71.71.81.51.81.81.61.41.71.41.51.71.31.51.21.5
Percentage of Revenues us-gaap:OperatingSegments mrk:ImplanonNexplanon mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Invanz, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value645757787259137149151157159150136152152143114145153139132139141
Percentage of Revenues0.50.50.50.70.70.51.31.41.51.51.51.51.41.51.41.51.21.41.51.41.41.31.3
Percentage of Revenues0.50.50.50.70.70.51.31.41.51.51.51.51.41.51.41.51.21.41.51.41.41.31.3
Percentage of Revenues us-gaap:OperatingSegments mrk:Invanz mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:IsentressIsentressHD, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value245223250247255280275305281308310282305337372338
Percentage of Revenues2.01.92.02.12.42.52.52.92.83.03.02.83.23.33.53.4
Percentage of Revenues2.01.92.02.12.42.52.52.92.83.03.02.83.23.33.53.4
Percentage of Revenues us-gaap:OperatingSegments mrk:IsentressIsentressHD mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Janumet, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value503474503533530535563585544586513563496577548569506526562554509571505
Percentage of Revenues4.24.04.14.54.94.95.25.65.45.65.05.75.35.75.25.85.45.15.65.75.45.44.8
Percentage of Revenues4.24.04.14.54.94.95.25.65.45.65.05.75.35.75.25.85.45.15.65.75.45.44.8
Percentage of Revenues us-gaap:OperatingSegments mrk:Janumet mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Januvia, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value774943807908824930927949880938101294883993210061064906921101410448841082933
Percentage of Revenues6.47.96.57.77.68.58.69.18.89.09.89.58.99.29.510.89.79.010.110.79.410.38.8
Percentage of Revenues6.47.96.57.77.68.58.69.18.89.09.89.58.99.29.510.89.79.010.110.79.410.38.8
Percentage of Revenues us-gaap:OperatingSegments mrk:Januvia mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Keytruda, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value3284311130702634226921511889166714641297104788158448335631424921415911083514
Percentage of Revenues27.226.224.822.421.019.617.515.914.612.410.18.96.24.83.43.22.72.11.61.10.90.50.0
Percentage of Revenues27.226.224.822.421.019.617.515.914.612.410.18.96.24.83.43.22.72.11.61.10.90.50.0
Percentage of Revenues us-gaap:OperatingSegments mrk:Keytruda mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Lenvima, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value12812410997747143350000
Percentage of Revenues1.11.00.90.80.70.60.40.30.00.00.00.0
Percentage of Revenues1.11.00.90.80.70.60.40.30.00.00.00.0
Percentage of Revenues us-gaap:OperatingSegments mrk:Lenvima mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:OperatingSegments, mrk:Livestock, mrk:AnimalHealthsegment



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
Value739777726671611684660633652668655582578
Percentage of Revenues6.16.55.95.75.66.26.16.06.56.46.35.96.1
Percentage of Revenues6.16.55.95.75.66.26.16.06.56.46.35.96.1
Percentage of Revenues us-gaap:OperatingSegments mrk:Livestock mrk:AnimalHealthsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Nasonex, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value102-3611610910310271811201214285
Percentage of Revenues0.8-0.30.90.91.00.90.70.81.21.20.40.9
Percentage of Revenues0.8-0.30.90.91.00.90.70.81.21.20.40.9
Percentage of Revenues us-gaap:OperatingSegments mrk:Nasonex mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Noxafil, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value94102177193190191188188176178162155141161147143145127132117111122107
Percentage of Revenues0.80.91.41.61.81.71.71.81.81.71.61.61.51.61.41.51.61.21.31.21.21.21.0
Percentage of Revenues0.80.91.41.61.81.71.71.81.81.71.61.61.51.61.41.51.61.21.31.21.21.21.0
Percentage of Revenues us-gaap:OperatingSegments mrk:Noxafil mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Nuvaring, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value63179241240219216234236216188214199160206195200175194190182166192186
Percentage of Revenues0.51.51.92.02.02.02.22.32.21.82.12.01.72.01.92.01.91.91.91.91.81.81.8
Percentage of Revenues0.51.51.92.02.02.02.22.32.21.82.12.01.72.01.92.01.91.91.91.91.81.81.8
Percentage of Revenues us-gaap:OperatingSegments mrk:Nuvaring mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:OtherPharmaceutical, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value1194126712291268114010679801053118610489521064
Percentage of Revenues9.910.79.910.810.59.79.110.111.810.09.210.7
Percentage of Revenues9.910.79.910.810.59.79.110.111.810.09.210.7
Percentage of Revenues us-gaap:OperatingSegments mrk:OtherPharmaceutical mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Pneumovax23, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value256334237170185321214193179263229166163238175120107188138106110346197
Percentage of Revenues2.12.81.91.41.72.92.01.81.82.52.21.71.72.41.71.21.11.81.41.11.23.31.9
Percentage of Revenues2.12.81.91.41.72.92.01.81.82.52.21.71.72.41.71.21.11.81.41.11.23.31.9
Percentage of Revenues us-gaap:OperatingSegments mrk:Pneumovax23 mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Prevymis, mrk:Pharmaceuticalsegment



Period End2020-03-312019-03-31
Value6032
Percentage of Revenues0.50.3
Percentage of Revenues0.50.3
Percentage of Revenues us-gaap:OperatingSegments mrk:Prevymis mrk:Pharmaceuticalsegment100.0100.0

us-gaap:OperatingSegments, mrk:Primaxin, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value5166777159537268727473716266778173857588658691
Percentage of Revenues0.40.60.60.60.50.50.70.60.70.70.70.70.70.70.70.80.80.80.70.90.70.80.9
Percentage of Revenues0.40.60.60.60.50.50.70.60.70.70.70.70.70.70.70.80.80.80.70.90.70.80.9
Percentage of Revenues us-gaap:OperatingSegments mrk:Primaxin mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:ProQuadMMRIIVarivax, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value435481623675496455525426392403519399355404496383357409390358348367421
Percentage of Revenues3.64.15.05.74.64.14.94.13.93.95.04.03.84.04.73.93.84.03.93.73.73.54.0
Percentage of Revenues3.64.15.05.74.64.14.94.13.93.95.04.03.84.04.73.93.84.03.93.73.73.54.0
Percentage of Revenues us-gaap:OperatingSegments mrk:ProQuadMMRIIVarivax mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Remicade, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value888910198123123135157167186214208229269311339349396442455501557604
Percentage of Revenues0.70.70.80.81.11.11.31.51.71.82.12.12.42.73.03.43.73.94.44.65.35.35.7
Percentage of Revenues0.70.70.80.81.11.11.31.51.71.82.12.12.42.73.03.43.73.94.44.65.35.35.7
Percentage of Revenues us-gaap:OperatingSegments mrk:Remicade mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Rotateq, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value22222718017221118819115619316117912322416317113018816916089192169174
Percentage of Revenues1.81.91.51.52.01.71.81.51.91.51.71.22.41.61.61.32.01.71.60.92.01.61.6
Percentage of Revenues1.81.91.51.52.01.71.81.51.91.51.71.22.41.61.61.32.01.71.60.92.01.61.6
Percentage of Revenues us-gaap:OperatingSegments mrk:Rotateq mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Simponi, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value215205203214208220210233231217219199184185193199188185178169158189170
Percentage of Revenues1.81.71.61.81.92.01.92.22.32.12.12.02.01.81.82.02.01.81.81.71.71.81.6
Percentage of Revenues1.81.71.61.81.92.01.92.22.32.12.12.02.01.81.82.02.01.81.81.71.71.81.6
Percentage of Revenues us-gaap:OperatingSegments mrk:Simponi mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Singulair, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value155195152160191187161185175182161203186210239229237273201212245319218
Percentage of Revenues1.31.61.21.41.81.71.51.81.71.71.62.02.02.12.32.32.52.72.02.22.63.02.1
Percentage of Revenues1.31.61.21.41.81.71.51.81.71.71.62.02.02.12.32.32.52.72.02.22.63.02.1
Percentage of Revenues us-gaap:OperatingSegments mrk:Singulair mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Vaqta, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value607162584772666537
Percentage of Revenues0.50.60.50.50.40.70.60.60.4
Percentage of Revenues0.50.60.50.50.40.70.60.60.4
Percentage of Revenues us-gaap:OperatingSegments mrk:Vaqta mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Vytorin, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value53545776978392155167186142182241298273293277309302320320370369
Percentage of Revenues0.40.50.50.60.90.80.91.51.71.81.41.82.62.92.63.03.03.03.03.33.43.53.5
Percentage of Revenues0.40.50.50.60.90.80.91.51.71.81.41.82.62.92.63.03.03.03.03.33.43.53.5
Percentage of Revenues us-gaap:OperatingSegments mrk:Vytorin mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Zepatier, mrk:Pharmaceuticalsegment



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
Value556683108114108104113131297468517378229164112500000
Percentage of Revenues0.50.60.70.91.11.01.01.11.32.84.55.24.02.31.61.10.50.00.00.00.0
Percentage of Revenues0.50.60.70.91.11.01.01.11.32.84.55.24.02.31.61.10.50.00.00.00.0
Percentage of Revenues us-gaap:OperatingSegments mrk:Zepatier mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:OperatingSegments, mrk:Zerbaxa, mrk:Pharmaceuticalsegment



Period End2020-03-312019-03-31
Value3726
Percentage of Revenues0.30.2
Percentage of Revenues0.30.2
Percentage of Revenues us-gaap:OperatingSegments mrk:Zerbaxa mrk:Pharmaceuticalsegment100.0100.0

us-gaap:OperatingSegments, mrk:Zetia, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value145147147156140161165226305323320367334575671702612690633635568662660
Percentage of Revenues1.21.21.21.31.31.51.52.23.03.13.13.73.55.76.47.16.66.86.36.56.06.36.3
Percentage of Revenues1.21.21.21.31.31.51.52.23.03.13.13.73.55.76.47.16.66.86.36.56.06.36.3
Percentage of Revenues us-gaap:OperatingSegments mrk:Zetia mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:OperatingSegments, mrk:Adempas, mrk:International, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value561171071049091947568797067
Percentage of Revenues0.51.00.90.90.80.80.90.70.70.80.70.7
Percentage of Revenues0.51.00.90.90.80.80.90.70.70.80.70.7
Percentage of Revenues us-gaap:OperatingSegments mrk:Adempas mrk:International mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:AllianceRevenueAdempas, country:US, mrk:Pharmaceuticalsegment



Period End2020-03-312019-03-31
Value4940
Percentage of Revenues0.40.4
Percentage of Revenues0.40.4
Percentage of Revenues us-gaap:OperatingSegments mrk:AllianceRevenueAdempas country:US mrk:Pharmaceuticalsegment100.0100.0

us-gaap:OperatingSegments, mrk:AllianceRevenueAdempas, mrk:International, mrk:Pharmaceuticalsegment



Period End2020-03-312019-03-31
Value52
Percentage of Revenues0.00.0
Percentage of Revenues0.00.0
Percentage of Revenues us-gaap:OperatingSegments mrk:AllianceRevenueAdempas mrk:International mrk:Pharmaceuticalsegment100.0100.0

us-gaap:OperatingSegments, mrk:AlliancerevenueLynparza, country:US, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value858371665039333124000
Percentage of Revenues0.70.70.60.60.50.40.30.30.20.00.00.0
Percentage of Revenues0.70.70.60.60.50.40.30.30.20.00.00.0
Percentage of Revenues us-gaap:OperatingSegments mrk:AlliancerevenueLynparza country:US mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:OperatingSegments, mrk:AlliancerevenueLynparza, mrk:International, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value605053452924151391550
Percentage of Revenues0.50.40.40.40.30.20.10.10.10.10.00.0
Percentage of Revenues0.50.40.40.40.30.20.10.10.10.10.00.0
Percentage of Revenues us-gaap:OperatingSegments mrk:AlliancerevenueLynparza mrk:International mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:OperatingSegments, mrk:Arcoxia, mrk:International, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value706772757586838483918089
Percentage of Revenues0.60.60.60.60.70.80.80.80.80.90.80.9
Percentage of Revenues0.60.60.60.60.70.80.80.80.80.90.80.9
Percentage of Revenues us-gaap:OperatingSegments mrk:Arcoxia mrk:International mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Atozet, mrk:International, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value122108979294898410173545963
Percentage of Revenues1.00.90.80.80.90.80.81.00.70.50.60.6
Percentage of Revenues1.00.90.80.80.90.80.81.00.70.50.60.6
Percentage of Revenues us-gaap:OperatingSegments mrk:Atozet mrk:International mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Belsomra, country:US, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value272423212420232923262725
Percentage of Revenues0.20.20.20.20.20.20.20.30.20.20.30.3
Percentage of Revenues0.20.20.20.20.20.20.20.30.20.20.30.3
Percentage of Revenues us-gaap:OperatingSegments mrk:Belsomra country:US mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Belsomra, mrk:International, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value535957554449434231343028
Percentage of Revenues0.40.50.50.50.40.40.40.40.30.30.30.3
Percentage of Revenues0.40.50.50.50.40.40.40.40.30.30.30.3
Percentage of Revenues us-gaap:OperatingSegments mrk:Belsomra mrk:International mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Bridion, country:US, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value143152133129119114969580776354
Percentage of Revenues1.21.31.11.11.11.00.90.90.80.70.60.5
Percentage of Revenues1.21.31.11.11.11.00.90.90.80.70.60.5
Percentage of Revenues us-gaap:OperatingSegments mrk:Bridion country:US mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Bridion, mrk:International, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value157161151149136142120145124132122109
Percentage of Revenues1.31.41.21.31.31.31.11.41.21.31.21.1
Percentage of Revenues1.31.41.21.31.31.31.11.41.21.31.21.1
Percentage of Revenues us-gaap:OperatingSegments mrk:Bridion mrk:International mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Cancidas, country:US, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value310312243366
Percentage of Revenues0.00.00.00.00.00.00.00.00.00.00.10.1
Percentage of Revenues0.00.00.00.00.00.00.00.00.00.00.10.1
Percentage of Revenues us-gaap:OperatingSegments mrk:Cancidas country:US mrk:Pharmaceuticalsegment100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Cancidas, mrk:International, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value5255626460677783889288106
Percentage of Revenues0.40.50.50.50.60.60.70.80.90.90.91.1
Percentage of Revenues0.40.50.50.50.60.60.70.80.90.90.91.1
Percentage of Revenues us-gaap:OperatingSegments mrk:Cancidas mrk:International mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:CompanionAnimals, country:US, mrk:AnimalHealthsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value222164193190177169153204183136153167
Percentage of Revenues1.81.41.61.61.61.51.41.91.81.31.51.7
Percentage of Revenues1.81.41.61.61.61.51.41.91.81.31.51.7
Percentage of Revenues us-gaap:OperatingSegments mrk:CompanionAnimals country:US mrk:AnimalHealthsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:CompanionAnimals, mrk:International, mrk:AnimalHealthsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value253181203263237183207253229177192206
Percentage of Revenues2.11.51.62.22.21.71.92.42.31.71.92.1
Percentage of Revenues2.11.51.62.22.21.71.92.42.31.71.92.1
Percentage of Revenues us-gaap:OperatingSegments mrk:CompanionAnimals mrk:International mrk:AnimalHealthsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:CozaarHyzaar, country:US, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value6224-1-15471393
Percentage of Revenues0.00.20.0-0.0-0.00.00.00.10.00.00.10.0
Percentage of Revenues0.00.20.0-0.0-0.00.00.00.10.00.00.10.0
Percentage of Revenues us-gaap:OperatingSegments mrk:CozaarHyzaar country:US mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:CozaarHyzaar, mrk:International, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value6519455739710199118121121119116
Percentage of Revenues0.51.60.40.60.90.90.91.11.21.21.21.2
Percentage of Revenues0.51.60.40.60.90.90.91.11.21.21.21.2
Percentage of Revenues us-gaap:OperatingSegments mrk:CozaarHyzaar mrk:International mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Cubicin, country:US, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value151414224241554847414153
Percentage of Revenues0.10.10.10.20.40.40.50.50.50.40.40.5
Percentage of Revenues0.10.10.10.20.40.40.50.50.50.40.40.5
Percentage of Revenues us-gaap:OperatingSegments mrk:Cubicin country:US mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Cubicin, mrk:International, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value313638454639404651525050
Percentage of Revenues0.30.30.30.40.40.40.40.40.50.50.50.5
Percentage of Revenues0.30.30.30.40.40.40.40.40.50.50.50.5
Percentage of Revenues us-gaap:OperatingSegments mrk:Cubicin mrk:International mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Emend, country:US, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value51042676373718979858883
Percentage of Revenues0.00.10.30.60.60.70.70.90.80.80.90.8
Percentage of Revenues0.00.10.30.60.60.70.70.90.80.80.90.8
Percentage of Revenues us-gaap:OperatingSegments mrk:Emend country:US mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Emend, mrk:International, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value384256545353525946574960
Percentage of Revenues0.30.40.50.50.50.50.50.60.50.50.50.6
Percentage of Revenues0.30.40.50.50.50.50.50.60.50.50.50.6
Percentage of Revenues us-gaap:OperatingSegments mrk:Emend mrk:International mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:FollistimAq, country:US, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value212327242932262729193032
Percentage of Revenues0.20.20.20.20.30.30.20.30.30.20.30.3
Percentage of Revenues0.20.20.20.20.30.30.20.30.30.20.30.3
Percentage of Revenues us-gaap:OperatingSegments mrk:FollistimAq country:US mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:FollistimAq, mrk:International, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value213635392838344339464147
Percentage of Revenues0.20.30.30.30.30.30.30.40.40.40.40.5
Percentage of Revenues0.20.30.30.30.30.30.30.40.40.40.40.5
Percentage of Revenues us-gaap:OperatingSegments mrk:FollistimAq mrk:International mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:GardasilGardasil9, country:US, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value461252761456362451740302380370484312
Percentage of Revenues3.82.16.13.93.34.16.92.93.83.54.73.1
Percentage of Revenues3.82.16.13.93.34.16.92.93.83.54.73.1
Percentage of Revenues us-gaap:OperatingSegments mrk:GardasilGardasil9 country:US mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:GardasilGardasil9, mrk:International, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value636441558430476385308306280262191156
Percentage of Revenues5.33.74.53.74.43.52.92.92.82.51.81.6
Percentage of Revenues5.33.74.53.74.43.52.92.92.82.51.81.6
Percentage of Revenues us-gaap:OperatingSegments mrk:GardasilGardasil9 mrk:International mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:ImplanonNexplanon, country:US, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value149147136136149120133114128129110125
Percentage of Revenues1.21.21.11.21.41.11.21.11.31.21.11.3
Percentage of Revenues1.21.21.11.21.41.11.21.11.31.21.11.3
Percentage of Revenues us-gaap:OperatingSegments mrk:ImplanonNexplanon country:US mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:ImplanonNexplanon, mrk:International, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value455962485048536046544553
Percentage of Revenues0.40.50.50.40.50.40.50.60.50.50.40.5
Percentage of Revenues0.40.50.50.40.50.40.50.60.50.50.40.5
Percentage of Revenues us-gaap:OperatingSegments mrk:ImplanonNexplanon mrk:International mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Invanz, country:US, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value60-118141748791939393
Percentage of Revenues0.00.0-0.00.20.10.00.70.80.90.90.90.9
Percentage of Revenues0.00.0-0.00.20.10.00.70.80.90.90.90.9
Percentage of Revenues us-gaap:OperatingSegments mrk:Invanz country:US mrk:Pharmaceuticalsegment100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Invanz, mrk:International, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value595758605858626360646657
Percentage of Revenues0.50.50.50.50.50.50.60.60.60.60.60.6
Percentage of Revenues0.50.50.50.50.50.50.60.60.60.60.60.6
Percentage of Revenues us-gaap:OperatingSegments mrk:Invanz mrk:International mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:IsentressIsentressHD, country:US, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value759410294108130123132128143143136
Percentage of Revenues0.60.80.80.81.01.21.11.31.31.41.41.4
Percentage of Revenues0.60.80.80.81.01.21.11.31.31.41.41.4
Percentage of Revenues us-gaap:OperatingSegments mrk:IsentressIsentressHD country:US mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:IsentressIsentressHD, mrk:International, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value170127149153147150151174152165167146
Percentage of Revenues1.41.11.21.31.41.41.41.71.51.61.61.5
Percentage of Revenues1.41.11.21.31.41.41.41.71.51.61.61.5
Percentage of Revenues us-gaap:OperatingSegments mrk:IsentressIsentressHD mrk:International mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Janumet, country:US, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value113127129166167186225209192223197248
Percentage of Revenues0.91.11.01.41.51.72.12.01.92.11.92.5
Percentage of Revenues0.91.11.01.41.51.72.12.01.92.11.92.5
Percentage of Revenues us-gaap:OperatingSegments mrk:Janumet country:US mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Janumet, mrk:International, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value390347375366364350339377352363316315
Percentage of Revenues3.22.93.03.13.43.23.13.63.53.53.13.2
Percentage of Revenues3.22.93.03.13.43.23.13.63.53.53.13.2
Percentage of Revenues us-gaap:OperatingSegments mrk:Janumet mrk:International mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Januvia, country:US, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value355501367471384503498503465507598541
Percentage of Revenues2.94.23.04.03.64.64.64.84.64.95.85.4
Percentage of Revenues2.94.23.04.03.64.64.64.84.64.95.85.4
Percentage of Revenues us-gaap:OperatingSegments mrk:Januvia country:US mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Januvia, mrk:International, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value419441440437440427429446416431414407
Percentage of Revenues3.53.73.53.74.13.94.04.34.14.14.04.1
Percentage of Revenues3.53.73.53.74.13.94.04.34.14.14.04.1
Percentage of Revenues us-gaap:OperatingSegments mrk:Januvia mrk:International mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Keytruda, country:US, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value1906178017431498128412441109959838787604556
Percentage of Revenues15.815.014.112.711.911.310.39.28.37.55.85.6
Percentage of Revenues15.815.014.112.711.911.310.39.28.37.55.85.6
Percentage of Revenues us-gaap:OperatingSegments mrk:Keytruda country:US mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Keytruda, mrk:International, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value1378133113271136985907780707626510442325
Percentage of Revenues11.411.210.79.79.18.27.26.86.24.94.33.3
Percentage of Revenues11.411.210.79.79.18.27.26.86.24.94.33.3
Percentage of Revenues us-gaap:OperatingSegments mrk:Keytruda mrk:International mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Lenvima, country:US, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value9070655450463000000
Percentage of Revenues0.70.60.50.50.50.40.30.00.00.00.00.0
Percentage of Revenues0.70.60.50.50.50.40.30.00.00.00.00.0
Percentage of Revenues us-gaap:OperatingSegments mrk:Lenvima country:US mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.0

us-gaap:OperatingSegments, mrk:Lenvima, mrk:International, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value38534443242513350000
Percentage of Revenues0.30.40.40.40.20.20.10.30.00.00.00.0
Percentage of Revenues0.30.40.40.40.20.20.10.30.00.00.00.0
Percentage of Revenues us-gaap:OperatingSegments mrk:Lenvima mrk:International mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:OperatingSegments, mrk:Livestock, country:US, mrk:AnimalHealthsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value162176144145117145153107124112137103
Percentage of Revenues1.31.51.21.21.11.31.41.01.21.11.31.0
Percentage of Revenues1.31.51.21.21.11.31.41.01.21.11.31.0
Percentage of Revenues us-gaap:OperatingSegments mrk:Livestock country:US mrk:AnimalHealthsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Livestock, mrk:International, mrk:AnimalHealthsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value577600582526494539508526529556518479
Percentage of Revenues4.85.14.74.54.64.94.75.05.35.35.04.8
Percentage of Revenues4.85.14.74.54.64.94.75.05.35.35.04.8
Percentage of Revenues us-gaap:OperatingSegments mrk:Livestock mrk:International mrk:AnimalHealthsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Nasonex, country:US, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value7-76641570738-2321
Percentage of Revenues0.1-0.10.00.10.00.10.10.00.10.4-0.20.2
Percentage of Revenues0.1-0.10.00.10.00.10.10.00.10.4-0.20.2
Percentage of Revenues us-gaap:OperatingSegments mrk:Nasonex country:US mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Nasonex, mrk:International, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value95-2911010399876481113836564
Percentage of Revenues0.8-0.20.90.90.90.80.60.81.10.80.60.6
Percentage of Revenues0.8-0.20.90.90.90.80.60.81.10.80.60.6
Percentage of Revenues us-gaap:OperatingSegments mrk:Nasonex mrk:International mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Noxafil, country:US, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value814771009196898781897877
Percentage of Revenues0.10.10.60.90.80.90.80.80.80.90.80.8
Percentage of Revenues0.10.10.60.90.80.90.80.80.80.90.80.8
Percentage of Revenues us-gaap:OperatingSegments mrk:Noxafil country:US mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Noxafil, mrk:International, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value87891009399959910094908378
Percentage of Revenues0.70.70.80.80.90.90.91.00.90.90.80.8
Percentage of Revenues0.70.70.80.80.90.90.91.00.90.90.80.8
Percentage of Revenues us-gaap:OperatingSegments mrk:Noxafil mrk:International mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Nuvaring, country:US, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value26149202206185172193187171139160153
Percentage of Revenues0.21.31.61.81.71.61.81.81.71.31.51.5
Percentage of Revenues0.21.31.61.81.71.61.81.81.71.31.51.5
Percentage of Revenues us-gaap:OperatingSegments mrk:Nuvaring country:US mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Nuvaring, mrk:International, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value372939343445414946495447
Percentage of Revenues0.30.20.30.30.30.40.40.50.50.50.50.5
Percentage of Revenues0.30.20.30.30.30.40.40.50.50.50.50.5
Percentage of Revenues us-gaap:OperatingSegments mrk:Nuvaring mrk:International mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:OtherPharmaceutical, country:US, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value409421385401358351317289320272266304
Percentage of Revenues3.43.53.13.43.33.22.92.83.22.62.63.1
Percentage of Revenues3.43.53.13.43.33.22.92.83.22.62.63.1
Percentage of Revenues us-gaap:OperatingSegments mrk:OtherPharmaceutical country:US mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:OtherPharmaceutical, mrk:International, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value780851842869782705666765867777688761
Percentage of Revenues6.57.26.87.47.26.46.27.38.67.46.77.7
Percentage of Revenues6.57.26.87.47.26.46.27.38.67.46.77.7
Percentage of Revenues us-gaap:OperatingSegments mrk:OtherPharmaceutical mrk:International mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Pneumovax23, country:US, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value182251179123125233160122112189174104
Percentage of Revenues1.52.11.41.01.22.11.51.21.11.81.71.0
Percentage of Revenues1.52.11.41.01.22.11.51.21.11.81.71.0
Percentage of Revenues us-gaap:OperatingSegments mrk:Pneumovax23 country:US mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Pneumovax23, mrk:International, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value758358475989547166745661
Percentage of Revenues0.60.70.50.40.50.80.50.70.70.70.50.6
Percentage of Revenues0.60.70.50.40.50.80.50.70.70.70.50.6
Percentage of Revenues us-gaap:OperatingSegments mrk:Pneumovax23 mrk:International mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Prevymis, country:US, mrk:Pharmaceuticalsegment



Period End2020-03-312019-03-31
Value2618
Percentage of Revenues0.20.2
Percentage of Revenues0.20.2
Percentage of Revenues us-gaap:OperatingSegments mrk:Prevymis country:US mrk:Pharmaceuticalsegment100.0100.0

us-gaap:OperatingSegments, mrk:Prevymis, mrk:International, mrk:Pharmaceuticalsegment



Period End2020-03-312019-03-31
Value3314
Percentage of Revenues0.30.1
Percentage of Revenues0.30.1
Percentage of Revenues us-gaap:OperatingSegments mrk:Prevymis mrk:International mrk:Pharmaceuticalsegment100.0100.0

us-gaap:OperatingSegments, mrk:Primaxin, country:US, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value002001105351
Percentage of Revenues0.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues0.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues us-gaap:OperatingSegments mrk:Primaxin country:US mrk:Pharmaceuticalsegment0.00.0100.00.00.0100.0100.00.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Primaxin, mrk:International, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value516775705952716867716870
Percentage of Revenues0.40.60.60.60.50.50.70.60.70.70.70.7
Percentage of Revenues0.40.60.60.60.50.50.70.60.70.70.70.7
Percentage of Revenues us-gaap:OperatingSegments mrk:Primaxin mrk:International mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:ProQuadMMRIIVarivax, country:US, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value333358482500343333429356312316419341
Percentage of Revenues2.83.03.94.33.23.04.03.43.13.04.13.4
Percentage of Revenues2.83.03.94.33.23.04.03.43.13.04.13.4
Percentage of Revenues us-gaap:OperatingSegments mrk:ProQuadMMRIIVarivax country:US mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:ProQuadMMRIIVarivax, mrk:International, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value1021231411741531229670808810058
Percentage of Revenues0.81.01.11.51.41.10.90.70.80.81.00.6
Percentage of Revenues0.81.01.11.51.41.10.90.70.80.81.00.6
Percentage of Revenues us-gaap:OperatingSegments mrk:ProQuadMMRIIVarivax mrk:International mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Remicade, mrk:International, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value888910198123123135157167186214208
Percentage of Revenues0.70.70.80.81.11.11.31.51.71.82.12.1
Percentage of Revenues0.70.70.80.81.11.11.31.51.71.82.12.1
Percentage of Revenues us-gaap:OperatingSegments mrk:Remicade mrk:International mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Rotateq, country:US, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value1401461021041541121349915110412772
Percentage of Revenues1.21.20.80.91.41.01.20.91.51.01.20.7
Percentage of Revenues1.21.20.80.91.41.01.20.91.51.01.20.7
Percentage of Revenues us-gaap:OperatingSegments mrk:Rotateq country:US mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Rotateq, mrk:International, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value828178685776575742565251
Percentage of Revenues0.70.70.60.60.50.70.50.50.40.50.50.5
Percentage of Revenues0.70.70.60.60.50.70.50.50.40.50.50.5
Percentage of Revenues us-gaap:OperatingSegments mrk:Rotateq mrk:International mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Simponi, mrk:International, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value215205203214208220210233231217219199
Percentage of Revenues1.81.71.61.81.92.01.92.22.32.12.12.0
Percentage of Revenues1.81.71.61.81.92.01.92.22.32.12.12.0
Percentage of Revenues us-gaap:OperatingSegments mrk:Simponi mrk:International mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Singulair, country:US, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value551185455612166
Percentage of Revenues0.00.00.10.10.00.00.00.00.10.10.20.1
Percentage of Revenues0.00.00.10.10.00.00.00.00.10.10.20.1
Percentage of Revenues us-gaap:OperatingSegments mrk:Singulair country:US mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Singulair, mrk:International, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value151190140153186183156180170170145197
Percentage of Revenues1.31.61.11.31.71.71.41.71.71.61.42.0
Percentage of Revenues1.31.61.11.31.71.71.41.71.71.61.42.0
Percentage of Revenues us-gaap:OperatingSegments mrk:Singulair mrk:International mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Vaqta, country:US, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value302736382932364218
Percentage of Revenues0.20.20.30.30.30.30.30.40.2
Percentage of Revenues0.20.20.30.30.30.30.30.40.2
Percentage of Revenues us-gaap:OperatingSegments mrk:Vaqta country:US mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Vaqta, mrk:International, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value304326201840302318
Percentage of Revenues0.20.40.20.20.20.40.30.20.2
Percentage of Revenues0.20.40.20.20.20.40.30.20.2
Percentage of Revenues us-gaap:OperatingSegments mrk:Vaqta mrk:International mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Vytorin, country:US, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value35533-103810-630
Percentage of Revenues0.00.00.00.00.0-0.00.00.00.10.1-0.10.3
Percentage of Revenues0.00.00.00.00.0-0.00.00.00.10.1-0.10.3
Percentage of Revenues us-gaap:OperatingSegments mrk:Vytorin country:US mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Vytorin, mrk:International, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value50505273948592152158176148152
Percentage of Revenues0.40.40.40.60.90.80.91.51.61.71.41.5
Percentage of Revenues0.40.40.40.60.90.80.91.51.61.71.41.5
Percentage of Revenues us-gaap:OperatingSegments mrk:Vytorin mrk:International mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Zepatier, country:US, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value1822243933018-10088228256
Percentage of Revenues0.10.20.20.30.30.00.2-0.10.00.82.22.6
Percentage of Revenues0.10.20.20.30.30.00.2-0.10.00.82.22.6
Percentage of Revenues us-gaap:OperatingSegments mrk:Zepatier country:US mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.00.0100.0100.00.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Zepatier, mrk:International, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value374459688110886123131208241261
Percentage of Revenues0.30.40.50.60.71.00.81.21.32.02.32.6
Percentage of Revenues0.30.40.50.60.71.00.81.21.32.02.32.6
Percentage of Revenues us-gaap:OperatingSegments mrk:Zepatier mrk:International mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Zerbaxa, country:US, mrk:Pharmaceuticalsegment



Period End2020-03-312019-03-31
Value2012
Percentage of Revenues0.20.1
Percentage of Revenues0.20.1
Percentage of Revenues us-gaap:OperatingSegments mrk:Zerbaxa country:US mrk:Pharmaceuticalsegment100.0100.0

us-gaap:OperatingSegments, mrk:Zerbaxa, mrk:International, mrk:Pharmaceuticalsegment



Period End2020-03-312019-03-31
Value1614
Percentage of Revenues0.10.1
Percentage of Revenues0.10.1
Percentage of Revenues us-gaap:OperatingSegments mrk:Zerbaxa mrk:International mrk:Pharmaceuticalsegment100.0100.0

us-gaap:OperatingSegments, mrk:Zetia, country:US, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value-235601198175465122
Percentage of Revenues-0.00.00.00.10.00.10.10.10.20.50.61.2
Percentage of Revenues-0.00.00.00.10.00.10.10.10.20.50.61.2
Percentage of Revenues us-gaap:OperatingSegments mrk:Zetia country:US mrk:Pharmaceuticalsegment100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Zetia, mrk:International, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value147143142150140151157218287269255246
Percentage of Revenues1.21.21.11.31.31.41.52.12.92.62.52.5
Percentage of Revenues1.21.21.11.31.31.41.52.12.92.62.52.5
Percentage of Revenues us-gaap:OperatingSegments mrk:Zetia mrk:International mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, mrk:AnimalHealthsegment



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
Value1214112211221124102510361021109010659811000955939
Percentage of Revenues10.19.59.19.69.59.49.510.410.69.49.79.610.0
Percentage of Revenues10.19.59.19.69.59.49.510.410.69.49.79.610.0
Percentage of Revenues us-gaap:OperatingSegments mrk:AnimalHealthsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value106551053311095104609663983096589282891992899156875981858904944387008104902789258564826693709134
Percentage of Revenues88.488.889.588.989.389.489.588.788.989.088.788.286.888.089.688.487.088.488.687.587.789.486.5
Percentage of Revenues88.488.889.588.989.389.489.588.788.989.088.788.286.888.089.688.487.088.488.687.587.789.486.5
Percentage of Revenues us-gaap:OperatingSegments mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, us-gaap:AllOtherSegments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value2342464839555556841031001011033-2477977979905108184691192911011321
Percentage of Revenues0.20.40.40.40.40.50.50.50.81.01.01.010.9-24.59.39.99.710.68.49.39.910.512.5
Percentage of Revenues0.20.40.40.40.40.50.50.50.81.01.01.010.9-24.59.39.99.710.68.49.39.910.512.5
Percentage of Revenues us-gaap:OperatingSegments us-gaap:AllOtherSegments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidationItems, us-gaap:StatementGeographical

us-gaap:CorporateNonSegment, 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
Value1667104717205426117857
Percentage of Revenues0.10.60.10.00.10.20.20.50.30.10.10.10.6
Percentage of Revenues0.10.60.10.00.10.20.20.50.30.10.10.10.6
Percentage of Revenues us-gaap:CorporateNonSegment country:US100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CorporateNonSegment, mrk:International



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
Value149106125125826139-18-564963108159
Percentage of Revenues1.20.91.01.10.80.60.4-0.2-0.60.50.61.11.7
Percentage of Revenues1.20.91.01.10.80.60.4-0.2-0.60.50.61.11.7
Percentage of Revenues us-gaap:CorporateNonSegment mrk:International100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, 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
Value5121507555155140450847705010418941074317458743004138
Percentage of Revenues42.542.844.543.741.743.446.440.040.941.444.443.343.9
Percentage of Revenues42.542.844.543.741.743.446.440.040.941.444.443.343.9
Percentage of Revenues us-gaap:OperatingSegments country:US100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:International



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
Value6771662067476491621961515725624059606056566955155080
Percentage of Revenues56.255.854.455.257.555.953.059.659.458.054.955.553.8
Percentage of Revenues56.255.854.455.257.555.953.059.659.458.054.955.553.8
Percentage of Revenues us-gaap:OperatingSegments mrk:International100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:OperatingSegments, country:US, mrk:AnimalHealthsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value384340337335294314306311307248290270
Percentage of Revenues3.22.92.72.82.72.92.83.03.12.42.82.7
Percentage of Revenues3.22.92.72.82.72.92.83.03.12.42.82.7
Percentage of Revenues us-gaap:OperatingSegments country:US mrk:AnimalHealthsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, country:US, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value471446945132475841754402464938223716396741973929
Percentage of Revenues39.139.641.440.538.640.043.136.537.038.040.639.6
Percentage of Revenues39.139.641.440.538.640.043.136.537.038.040.639.6
Percentage of Revenues us-gaap:OperatingSegments country:US mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, country:US, us-gaap:AllOtherSegments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value234146473954555684102100101
Percentage of Revenues0.20.30.40.40.40.50.50.50.81.01.01.0
Percentage of Revenues0.20.30.40.40.40.50.50.50.81.01.01.0
Percentage of Revenues us-gaap:OperatingSegments country:US us-gaap:AllOtherSegments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:International, mrk:AnimalHealthsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value830781785789731722715779758733710685
Percentage of Revenues6.96.66.36.76.86.66.67.47.67.06.96.9
Percentage of Revenues6.96.66.36.76.86.66.67.47.67.06.96.9
Percentage of Revenues us-gaap:OperatingSegments mrk:International mrk:AnimalHealthsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:International, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value594158395962570254885428501054615202532249594830
Percentage of Revenues49.349.248.148.550.749.446.452.251.851.048.048.6
Percentage of Revenues49.349.248.148.550.749.446.452.251.851.048.048.6
Percentage of Revenues us-gaap:OperatingSegments mrk:International mrk:Pharmaceuticalsegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, mrk:International, us-gaap:AllOtherSegments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value0.00.00.00.00.01000000.00.00.00.01000000.00.00.0
Percentage of Revenues0.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues0.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues us-gaap:OperatingSegments mrk:International us-gaap:AllOtherSegments0.00.00.00.00.0100.00.00.00.0100.00.00.0

us-gaap:CounterpartyName, us-gaap:IncomeStatementLocation, us-gaap:TypeOfArrangement

mrk:AstraZeneca, us-gaap:Sales, us-gaap:CollaborativeArrangement



Period End2020-03-312019-03-31
Value14579
Percentage of Revenues1.20.7
Percentage of Revenues1.20.7
Percentage of Revenues mrk:AstraZeneca us-gaap:Sales us-gaap:CollaborativeArrangement100.0100.0

mrk:BayerAG, us-gaap:Sales, us-gaap:CollaborativeArrangement



Period End2020-03-312019-03-31
Value10990
Percentage of Revenues0.90.8
Percentage of Revenues0.90.8
Percentage of Revenues mrk:BayerAG us-gaap:Sales us-gaap:CollaborativeArrangement100.0100.0

mrk:Eisai, us-gaap:Sales, us-gaap:CollaborativeArrangement



Period End2020-03-312019-03-31
Value12874
Percentage of Revenues1.10.7
Percentage of Revenues1.10.7
Percentage of Revenues mrk:Eisai us-gaap:Sales us-gaap:CollaborativeArrangement100.0100.0

us-gaap:DerivativeInstrumentRisk, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ForeignExchangeContract, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedGainLossCashFlowHedgeIncludingNoncontrollingInterest



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value466670754412-6-73-93-191349
Percentage of Revenues0.40.60.60.60.40.1-0.1-0.7-0.9-0.20.10.5
Percentage of Revenues0.40.60.60.60.40.1-0.1-0.7-0.9-0.20.10.5
Percentage of Revenues us-gaap:ForeignExchangeContract us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedGainLossCashFlowHedgeIncludingNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementGeographical

country:CN



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value864784914763746628512559486
Percentage of Revenues7.26.67.46.56.95.74.75.34.8
Percentage of Revenues7.26.67.46.56.95.74.75.34.8
Percentage of Revenues country:CN100.0100.0100.0100.0100.0100.0100.0100.0100.0

country:JP



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
Value811944919921799859761855737802775839705
Percentage of Revenues6.78.07.47.87.47.87.18.27.37.77.58.47.5
Percentage of Revenues6.78.07.47.87.47.87.18.27.37.77.58.47.5
Percentage of Revenues country:JP100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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
Value5137514255255144451547875030424341334328459443084195
Percentage of Revenues42.643.344.643.741.743.546.640.541.241.544.543.444.5
Percentage of Revenues42.643.344.643.741.743.546.640.541.241.544.543.444.5
Percentage of Revenues country:US100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mrk:International



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
Value6920672668726616630162125764622259046105573256235239
Percentage of Revenues57.456.755.456.358.356.553.459.558.858.555.556.655.5
Percentage of Revenues57.456.755.456.358.356.553.459.558.858.555.556.655.5
Percentage of Revenues mrk:International100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mrk:OtherCountries



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
Value427437423395347363319279206341318340419
Percentage of Revenues3.53.73.43.43.23.33.02.72.13.33.13.44.4
Percentage of Revenues3.53.73.43.43.23.33.02.72.13.33.13.44.4
Percentage of Revenues mrk:OtherCountries100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:AsiaPacific



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value728726756716745-85711781350752-41311121056
Percentage of Revenues6.06.16.16.16.9-7.810.912.97.5-4.010.810.6
Percentage of Revenues6.06.16.16.16.9-7.810.912.97.5-4.010.810.6
Percentage of Revenues srt:AsiaPacific100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:LatinAmerica



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value556580671658561667622594532685585583
Percentage of Revenues4.64.95.45.65.26.15.85.75.36.65.75.9
Percentage of Revenues4.64.95.45.65.26.15.85.75.36.65.75.9
Percentage of Revenues srt:LatinAmerica100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EMEA



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
Value3534325531893163310329952884314431913104294128042629
Percentage of Revenues29.327.425.726.928.727.226.730.031.829.828.528.227.9
Percentage of Revenues29.327.425.726.928.727.226.730.031.829.828.528.227.9
Percentage of Revenues us-gaap:EMEA100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Sales Revenue Net

Sales Revenue Goods Net

Cost Of Goods And Services Sold

us-gaap:CostOfGoodsAndServicesSold



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value331236693990340130523289361934173184344033073116
Percentage of CostOfGoodsAndServicesSold100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues27.530.932.228.928.229.933.532.731.733.032.031.4

us-gaap:CounterpartyName, us-gaap:IncomeStatementLocation, us-gaap:TypeOfArrangement

mrk:AstraZeneca, us-gaap:CostOfSales, us-gaap:CollaborativeArrangement



Period End2020-03-312019-03-31
Value2819
Percentage of CostOfGoodsAndServicesSold0.80.6
Percentage of Revenues0.20.2
Percentage of Revenues mrk:AstraZeneca us-gaap:CostOfSales us-gaap:CollaborativeArrangement0.00.0

mrk:BayerAG, us-gaap:CostOfSales, us-gaap:CollaborativeArrangement



Period End2020-03-312019-03-31
Value2829
Percentage of CostOfGoodsAndServicesSold0.81.0
Percentage of Revenues0.20.3
Percentage of Revenues mrk:BayerAG us-gaap:CostOfSales us-gaap:CollaborativeArrangement0.00.0

mrk:Eisai, us-gaap:CostOfSales, us-gaap:CollaborativeArrangement



Period End2020-03-312019-03-31
Value3551
Percentage of CostOfGoodsAndServicesSold1.11.7
Percentage of Revenues0.30.5
Percentage of Revenues mrk:Eisai us-gaap:CostOfSales us-gaap:CollaborativeArrangement0.00.0

Cost Of Goods Sold

Research And Development Expense

us-gaap:ResearchAndDevelopmentExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value22092548320421891931221420682274319622814383174917964649166421511659179815001670173722831659166415741660210119072224191821651862241919541936215845172296215020261971125413951224
Percentage of ResearchAndDevelopmentExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues18.321.525.818.617.920.119.221.731.821.942.517.619.046.015.821.917.817.614.917.118.421.815.715.215.315.019.117.918.916.717.615.919.716.315.918.637.420.619.017.719.520.723.622.7

us-gaap:ConsolidationItems

us-gaap:MaterialReconcilingItems



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value20972454311020931843197518552041298244001829152715994433144418331373156112911460156118391332
Percentage of ResearchAndDevelopmentExpense94.996.397.195.695.489.289.789.893.3192.941.787.389.095.486.885.282.886.886.187.489.980.680.3
Percentage of Revenues17.420.725.117.817.018.017.219.529.742.217.715.416.943.813.718.614.715.312.814.916.617.512.6
Percentage of Revenues us-gaap:MaterialReconcilingItems0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CounterpartyName, us-gaap:IncomeStatementLocation, us-gaap:TypeOfArrangement

mrk:AstraZeneca, us-gaap:ResearchAndDevelopmentExpense, us-gaap:CollaborativeArrangement



Period End2020-03-312019-03-31
Value3645
Percentage of ResearchAndDevelopmentExpense1.62.3
Percentage of Revenues0.30.4
Percentage of Revenues mrk:AstraZeneca us-gaap:ResearchAndDevelopmentExpense us-gaap:CollaborativeArrangement0.00.0

mrk:BayerAG, us-gaap:ResearchAndDevelopmentExpense, us-gaap:CollaborativeArrangement



Period End2020-03-312019-03-31
Value2530
Percentage of ResearchAndDevelopmentExpense1.11.6
Percentage of Revenues0.20.3
Percentage of Revenues mrk:BayerAG us-gaap:ResearchAndDevelopmentExpense us-gaap:CollaborativeArrangement0.00.0

mrk:Eisai, us-gaap:ResearchAndDevelopmentExpense, us-gaap:CollaborativeArrangement



Period End2020-03-312019-03-31
Value6447
Percentage of ResearchAndDevelopmentExpense2.92.4
Percentage of Revenues0.50.4
Percentage of Revenues mrk:Eisai us-gaap:ResearchAndDevelopmentExpense us-gaap:CollaborativeArrangement0.00.0

Selling General And Administrative Expense

us-gaap:SellingGeneralAndAdministrativeExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value25552889258927122425264324432508250825792401243824112593239324582318261524722624260129252975297327342803314029873390306332493074370433403525316435783217320232463455172517291632
Percentage of SellingGeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues21.224.320.923.122.424.022.624.025.024.723.324.625.625.622.725.024.925.624.526.827.627.928.227.226.625.428.528.028.926.726.426.230.127.829.027.329.628.928.228.434.228.529.330.3

us-gaap:CounterpartyName, us-gaap:IncomeStatementLocation, us-gaap:TypeOfArrangement

mrk:AstraZeneca, us-gaap:SellingGeneralAndAdministrativeExpenses, us-gaap:CollaborativeArrangement



Period End2020-03-312019-03-31
Value3327
Percentage of SellingGeneralAndAdministrativeExpense1.31.1
Percentage of Revenues0.30.2
Percentage of Revenues mrk:AstraZeneca us-gaap:SellingGeneralAndAdministrativeExpenses us-gaap:CollaborativeArrangement0.00.0

mrk:BayerAG, us-gaap:SellingGeneralAndAdministrativeExpenses, us-gaap:CollaborativeArrangement



Period End2020-03-312019-03-31
Value158
Percentage of SellingGeneralAndAdministrativeExpense0.60.3
Percentage of Revenues0.10.1
Percentage of Revenues mrk:BayerAG us-gaap:SellingGeneralAndAdministrativeExpenses us-gaap:CollaborativeArrangement0.00.0

mrk:Eisai, us-gaap:SellingGeneralAndAdministrativeExpenses, us-gaap:CollaborativeArrangement



Period End2020-03-312019-03-31
Value1119
Percentage of SellingGeneralAndAdministrativeExpense0.40.8
Percentage of Revenues0.10.2
Percentage of Revenues mrk:Eisai us-gaap:SellingGeneralAndAdministrativeExpenses us-gaap:CollaborativeArrangement0.00.0

Interest Expense

us-gaap:InterestExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-30
Value21221923123320920319019418519018919318218017017117216916517416416519118818821520118419017817219519218918218617617218418116913099
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues1.81.81.92.01.91.81.81.91.81.81.81.91.91.81.61.71.81.71.61.81.71.61.81.71.81.91.81.71.61.51.41.71.61.61.51.61.51.61.61.61.72.21.7

us-gaap:ConsolidationItems

us-gaap:MaterialReconcilingItems



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value212219231233209203190194185190189193182180170171172169165174164165191
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues1.81.81.92.01.91.81.81.91.81.81.81.91.91.81.61.71.81.71.61.81.71.61.8
Percentage of Revenues us-gaap:MaterialReconcilingItems0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Other Nonoperating Income Expense

us-gaap:OtherNonoperatingIncomeExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value-71223-35-140-188-110172482911886-58-58-632-22-19-48-903170-739-551061914255839-172-201-282-670-200-103-142-137-66-121-622-308-1108280-16778142791-367
Percentage of OtherNonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-0.61.9-0.3-1.2-1.7-1.01.60.52.90.20.8-0.6-0.6-6.2-0.2-0.2-0.5-8.81.7-7.6-0.6101.31.35.10.4-1.6-1.8-2.6-5.7-1.7-0.8-1.2-1.1-0.5-1.0-5.4-2.6-10.02.5-1.577.446.1-0.11.2

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 End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value383827912347325930672604266520861345187920024392003-1356288715041624816239780713811181114901891209115251245155013342218268025071581235216721729-7014981241
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues31.823.518.927.728.423.724.719.913.418.01.924.621.2-13.427.415.317.48.023.88.214.7112.714.117.320.413.811.314.511.419.321.821.412.919.613.814.9-5.84.510.9

us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value13913710194304155-2-87-81-7843142140219322727219522615225779
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest3.64.94.32.91.01.62.1-0.1-6.5-4.3-39.01.87.1-10.30.76.214.033.38.128.011.02.25.3
Percentage of Revenues1.21.20.80.80.30.40.5-0.0-0.9-0.8-0.80.41.51.40.20.92.42.71.92.31.62.50.7
Percentage of Revenues us-gaap:CorporateNonSegment84.280.175.473.433.753.291.7-5.4280.6-135.0-113.037.465.766.718.156.474.9254.264.672.966.12336.477.5

us-gaap:OperatingSegments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value79567248816875186991657868936302628062566411612156325860655158445503591960705689560360976311
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest207.3259.7348.0230.7227.9252.6258.6302.1466.9332.93205.5251.0281.2-432.2226.9388.6338.9725.4253.2705.0405.751.6423.6
Percentage of Revenues66.061.165.963.964.659.863.960.262.660.062.161.659.757.962.259.459.157.960.358.159.458.259.8
Percentage of Revenues us-gaap:OperatingSegments66.962.066.664.665.260.264.260.462.460.362.562.461.159.262.960.461.158.662.160.060.958.260.4

us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, mrk:AnimalHealthsegment



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
Value478366423405415386409450413350389395417
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest12.513.118.012.413.514.815.321.630.718.6194.516.220.8
Percentage of Revenues4.03.13.43.43.83.53.84.34.13.43.84.04.4
Percentage of Revenues us-gaap:OperatingSegments mrk:AnimalHealthsegment39.432.637.736.040.537.340.141.338.835.738.941.444.4

us-gaap:OperatingSegments, mrk:Pharmaceuticalsegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value74776887774771156574618364795826580458645929561351805482616254205117557056415282516556895772
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest194.8246.8330.1218.3214.3237.4243.1279.3431.5312.12964.5230.1258.6-404.3213.4360.4315.1682.6235.3654.5374.048.2387.4
Percentage of Revenues62.058.062.560.560.856.260.055.757.856.257.456.554.954.258.555.155.054.556.054.054.854.354.7
Percentage of Revenues us-gaap:OperatingSegments mrk:Pharmaceuticalsegment70.265.469.868.068.062.967.162.865.163.164.864.163.361.665.362.363.161.763.261.762.560.763.2

us-gaap:OperatingSegments, us-gaap:AllOtherSegments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value1-5-2-22952663392482508452378389424386349429407438408539
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest0.0-0.2-0.1-0.10.10.30.21.24.720.9241.020.822.6-27.913.528.223.842.817.950.431.73.536.2
Percentage of Revenues0.0-0.0-0.0-0.00.00.10.00.20.63.84.75.14.83.73.74.34.13.44.34.24.63.95.1
Percentage of Revenues us-gaap:OperatingSegments us-gaap:AllOtherSegments4.3-11.9-4.3-4.25.116.49.146.475.0380.6482.0503.043.8-15.339.843.342.732.350.744.747.137.140.8

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 End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value6194284406152058267073706042917251488447-769699295494-1665661194234484648-142360375310-6638545586074038628-382658-201126460285-601621379327
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues5.13.63.55.21.97.56.53.56.028.02.44.94.7-7.66.63.05.3-1.65.61.24.542.86.1-1.33.53.42.8-0.63.34.07.06.30.35.2-3.15.7-1.71.14.12.5-0.626.86.46.1

Profit Loss

us-gaap:ProfitLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value32192363190726442862177819581716741-1038-5119511556-5872188120911309821831688958732784220331731115093516169491763182017671543172420541071-5003717803306524345515881455
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues26.719.915.422.526.516.218.116.47.4-9.9-0.519.616.5-5.820.812.312.19.618.27.010.269.98.018.616.910.48.515.18.115.314.815.112.614.316.99.2-4.13.36.92.964.657.126.927.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-30
Value30211553187326543114143319211645860-10119319321697-156920181313107914021585522110959913411800240011001510-335-5063299
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues25.113.115.122.628.813.017.815.78.6-9.70.919.518.0-15.519.213.311.613.715.75.311.857.23.215.019.89.513.6-3.0-4.454.5

Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest

Net Income Loss

us-gaap:NetIncomeLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value32192356190126702915182719501707736-1046-5619461551-5952184120511259771826687953731689520041705112490615939071729179317381512169220241043-5313417522986495342415561425
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues26.719.915.322.727.016.618.116.37.3-10.0-0.519.616.4-5.920.712.212.19.618.17.010.169.88.518.316.610.28.214.97.715.114.614.812.314.116.79.0-4.43.16.62.664.456.626.426.5

us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-30
Value32192356190126702915182719501707736-1046-5619451551-595218512051125977182668695373168952004170515939071730179317381512169320241043-53134175229964953424
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.099.9100.0100.0100.0100.0100.0100.0100.099.9100.0100.0100.0100.0100.0100.0100.0100.1100.0100.0100.0100.1100.0100.0100.0100.0100.0100.1100.0100.0
Percentage of Revenues26.719.915.322.727.016.618.116.37.3-10.0-0.519.616.4-5.920.712.212.19.618.17.010.169.88.518.316.614.97.715.114.614.812.314.116.79.0-4.43.16.62.664.456.6
Percentage of Revenues us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Income Loss Available To Common Stockholders Basic

Net Income Loss Available To Common Stockholders Diluted

Net Income Loss Attributable To Noncontrolling Interest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value076-26-53-4989585558445551511-53292626292342342729313230283130273129313230
Percentage of NetIncomeLossAttributableToNoncontrollingInterest0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.00.10.0-0.2-0.5-0.40.10.10.00.10.00.10.10.10.00.00.10.00.00.00.10.1-0.50.30.30.20.30.20.40.30.20.20.30.30.20.20.30.30.20.30.30.50.50.6

Assets

us-gaap:Assets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value8491384397833318396582354826378513085040860418787291676928049656195377983359647598755101779101232102582108345983351018089786010846010564510641910687610620010613210630110552510550910512810653410619510586510578110784010617011159311208947195
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value8491384397833318396582354826378513085040860418787291676928049656195377983359647598755101779101232102582108345983351018089786010846010564510641910687610620010613210630110552510550910512810653410619510586510578110784010617011159311208947195
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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
Value26205259072683827635275392670132422325293366834336382483946339837400884374443357438064467645587464484776548647452244835849975497654741947500530295302055747551945486054517551405549654384543765559255231578785905818758
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 Assets30.930.732.232.933.432.338.138.339.139.141.742.541.342.044.544.944.443.945.045.344.149.544.449.446.147.144.644.449.950.052.452.352.051.951.852.351.451.451.652.051.952.739.7

Assets Current

us-gaap:AssetsCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value26174274832614224298253512587526836240642408524766279192816731530306142944027926287722976428567283193292733173347233358741240356853776536995352443485736229356393434433181341093236831024290642775626253282442842819112
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets30.832.631.428.930.831.331.528.328.028.230.530.432.732.129.928.929.129.228.227.630.433.734.134.338.033.835.534.633.232.834.133.832.631.632.030.529.327.525.724.725.325.440.5

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-312008-12-312007-12-312006-12-31
Value742596767869665980767965782653104483609279017786117086515790766089700852475486922798074411137097431582815621140901509013024134511736016752146561353114253123421169510900987486658236931121816124576017436853365914
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.711.59.47.99.89.69.26.25.26.98.68.412.16.88.06.89.88.47.56.77.47.611.210.014.614.813.214.112.312.716.315.913.912.913.411.611.010.39.28.27.48.30.00.00.09.30.00.0

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value8182677884427964760870717374728772456873767174397066701873646916685064846414651066706626651570227188718475787779796576727952815287268261813684757344
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.68.010.19.59.28.68.78.68.47.88.48.07.37.47.57.26.96.46.36.36.26.76.47.26.66.87.17.37.57.27.57.78.37.97.68.06.9

Receivables Net Current

us-gaap:CounterpartyName, us-gaap:BalanceSheetLocation, us-gaap:TypeOfArrangement

us-gaap:ReceivablesNetCurrent

mrk:AstraZeneca, us-gaap:OtherCurrentAssets, us-gaap:CollaborativeArrangement



Period End2020-03-312019-12-31
Value142128
Percentage of ReceivablesNetCurrent100.0100.0
Percentage of Assets0.20.2
Percentage of Assets mrk:AstraZeneca us-gaap:OtherCurrentAssets us-gaap:CollaborativeArrangement0.00.0

mrk:BayerAG, us-gaap:OtherCurrentAssets, us-gaap:CollaborativeArrangement



Period End2020-03-312019-12-31
Value5049
Percentage of ReceivablesNetCurrent35.238.3
Percentage of Assets0.10.1
Percentage of Assets mrk:BayerAG us-gaap:OtherCurrentAssets us-gaap:CollaborativeArrangement0.00.0

mrk:Eisai, us-gaap:OtherCurrentAssets, us-gaap:CollaborativeArrangement



Period End2020-03-312019-12-31
Value140150
Percentage of ReceivablesNetCurrent98.6117.2
Percentage of Assets0.20.2
Percentage of Assets mrk:Eisai us-gaap:OtherCurrentAssets us-gaap:CollaborativeArrangement0.00.0

Inventory Net

us-gaap:InventoryNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value5846597858555847571254405416517853825096526354075146486652445248510247005123530655395571581961366376622667416766677365356731624963396254623962256057586862636244682580552091
Percentage of InventoryNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.97.17.07.06.96.66.46.16.35.85.75.85.35.15.35.45.24.65.15.25.15.75.76.35.95.96.36.36.46.26.35.96.05.95.95.95.75.55.85.96.17.24.4

Inventory Finished Goods

us-gaap:InventoryFinishedGoods



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value17531772169817501698165815851519153013341364139613551304142114371417134315281497169815881811212516421738175722142055192419521808177919831640144013841484194518792475
Percentage of InventoryFinishedGoods100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.12.12.02.12.12.01.91.81.81.51.51.51.41.41.41.51.41.31.51.51.61.61.82.21.51.61.72.11.91.81.81.71.71.91.51.41.31.41.81.82.2

Inventory L I F O Reserve

us-gaap:InventoryLIFOReserve



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value13817167296-110-11-25-45-142-258-275-302-320-357-375-384-366-346-334-309-220-169-116-73-52-49-47-5210397843112141170186202159166
Percentage of InventoryLIFOReserve100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.20.10.00.0-0.00.0-0.0-0.0-0.1-0.2-0.3-0.3-0.3-0.3-0.4-0.4-0.4-0.4-0.3-0.3-0.3-0.2-0.2-0.1-0.1-0.0-0.0-0.0-0.00.00.00.10.00.10.10.20.20.20.10.1

Other Assets Current

Land

Machinery And Equipment Gross

Property Plant And Equipment Gross

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value17706176861728117049166231632416568165671648316602166611637516171157491602216005160521592316043163061679418004187611886618622181211780517594176221738517475170491669716176156741519514515134811334912819122201259412128
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets20.921.020.720.320.219.819.519.519.218.918.217.616.716.516.316.616.315.615.815.915.518.318.419.317.217.216.716.516.616.416.416.215.815.414.714.313.712.712.412.111.011.225.7

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value15269150531428713862135061329112755126261256112439121891209412042120261202911987123601250712482126301291013136134381389314296149731532315683158021603015884158671612416297163831667116833170821711517334179851827311999
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets18.017.817.116.516.416.115.014.814.614.213.313.012.512.612.212.412.512.312.312.311.913.413.214.213.214.214.414.714.915.114.915.015.315.515.415.715.916.115.916.316.116.325.4

Goodwill

us-gaap:Goodwill



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value1976719425194801949018170182531825818274183041828418340183581835818162182601780917784177231776117707177401299213171117891212012301121211219812207121341216812158121561215512228123821220712378124801222512266119231438
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets23.323.023.423.222.122.121.421.521.320.820.019.819.019.018.618.518.017.417.517.316.413.212.912.011.211.611.411.411.511.411.411.511.511.611.511.711.511.711.611.511.010.63.0

us-gaap:BusinessAcquisition

mrk:ArQule



Period End2020-01-16
Value414
Percentage of Goodwill0.0
Percentage of Assets0.0
Percentage of Assets mrk:ArQule0.0

Intangible Assets Net Excluding Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value160961419612307133811099911431121751289813500141831513816119168631730520506203152136422602237242475026080203862039518830205172380125002263332810829083303253162033000343023582237065379063945642954432814557447655525
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets19.016.814.815.913.413.814.315.215.716.116.517.417.518.120.921.121.622.223.424.124.120.720.019.218.922.523.524.626.527.428.530.031.332.633.634.935.837.339.840.840.842.51.1

Finite Lived Intangible Assets Net

us-gaap:ProductOrService, us-gaap:BalanceSheetLocation

us-gaap:FiniteLivedIntangibleAssetsNet

mrk:Adempas, us-gaap:OtherIntangibleAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value8448838939569771000
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.0100.0
Percentage of Assets1.01.01.11.11.21.2
Percentage of Assets mrk:Adempas us-gaap:OtherIntangibleAssets0.00.00.00.00.00.0

mrk:Lenvima, us-gaap:OtherNoncurrentAssets



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value921664687711479266
Percentage of FiniteLivedIntangibleAssetsNet109.174.471.972.847.90.0
Percentage of Assets1.10.80.80.90.60.3
Percentage of Assets mrk:Lenvima us-gaap:OtherNoncurrentAssets0.00.00.00.00.00.0

mrk:Lynparza, us-gaap:OtherNoncurrentAssets



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value9289831000724743468
Percentage of FiniteLivedIntangibleAssetsNet110.0110.1104.674.174.30.0
Percentage of Assets1.11.21.20.90.90.5
Percentage of Assets mrk:Lynparza us-gaap:OtherNoncurrentAssets0.00.00.00.00.00.0

Deferred Tax Assets Liabilities Net

Other Assets Noncurrent

us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:OtherAssetsNoncurrent

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value281380546586483364236275232171171163158148161155155
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.50.70.70.60.40.30.30.30.20.20.20.20.20.20.20.2
Percentage of Assets us-gaap:FairValueInputsLevel1 us-gaap:FairValueMeasurementsRecurring0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value0006815322125337041048156365767278988485919
Percentage of OtherAssetsNoncurrent0.00.00.011.631.760.7107.2134.5176.7281.3329.2403.1425.3533.1549.1554.212.3
Percentage of Assets0.00.00.00.10.20.30.30.40.50.50.60.70.70.80.90.90.0
Percentage of Assets us-gaap:FairValueInputsLevel2 us-gaap:FairValueMeasurementsRecurring0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring, us-gaap:EquitySecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value219320485528427309182211168171
Percentage of OtherAssetsNoncurrent77.984.288.890.188.484.977.176.772.4100.0
Percentage of Assets0.30.40.60.60.50.40.20.20.20.2
Percentage of Assets us-gaap:FairValueInputsLevel1 us-gaap:FairValueMeasurementsRecurring us-gaap:EquitySecurities0.00.00.00.00.00.00.00.00.00.0

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring, us-gaap:USGovernmentAgenciesDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value6260615856555464640
Percentage of OtherAssetsNoncurrent22.115.811.29.911.615.122.923.327.60.0
Percentage of Assets0.10.10.10.10.10.10.10.10.10.0
Percentage of Assets us-gaap:FairValueInputsLevel1 us-gaap:FairValueMeasurementsRecurring us-gaap:USGovernmentAgenciesDebtSecurities0.00.00.00.00.00.00.00.00.00.0

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:USGovernmentAgenciesDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value0001941106112160161207
Percentage of OtherAssetsNoncurrent0.00.00.03.28.529.147.558.269.4121.1
Percentage of Assets0.00.00.00.00.00.10.10.20.20.2
Percentage of Assets us-gaap:FairValueInputsLevel2 us-gaap:FairValueMeasurementsRecurring us-gaap:USGovernmentAgenciesDebtSecurities0.00.00.00.00.00.00.00.00.00.0

us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value28138054665463658548964564265273482083093710451014174
Percentage of OtherAssetsNoncurrent100.0100.0100.0111.6131.7160.7207.2234.5276.7381.3429.2503.1525.3633.1649.1654.2112.3
Percentage of Assets0.30.50.70.80.80.70.60.80.70.70.80.90.91.01.11.10.2
Percentage of Assets us-gaap:FairValueMeasurementsRecurring0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument

us-gaap:FairValueMeasurementsRecurring, us-gaap:EquitySecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value219320485528427309182211168171
Percentage of OtherAssetsNoncurrent77.984.288.890.188.484.977.176.772.4100.0
Percentage of Assets0.30.40.60.60.50.40.20.20.20.2
Percentage of Assets us-gaap:FairValueMeasurementsRecurring us-gaap:EquitySecurities0.00.00.00.00.00.00.00.00.00.0

us-gaap:FairValueMeasurementsRecurring, us-gaap:USGovernmentAgenciesDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value6260617797161166224225207
Percentage of OtherAssetsNoncurrent22.115.811.213.120.144.270.381.597.0121.1
Percentage of Assets0.10.10.10.10.10.20.20.30.30.2
Percentage of Assets us-gaap:FairValueMeasurementsRecurring us-gaap:USGovernmentAgenciesDebtSecurities0.00.00.00.00.00.00.00.00.00.0

Liabilities Current

us-gaap:LiabilitiesCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value23483222202068420085185432220618586181281696018614194671875819823172041555514918175681920317583175082044218766259271792822470178681821518402188021834815583169121658216245165931576315662156411732315420164551575014318
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets27.726.324.823.922.526.921.821.319.721.221.220.220.518.015.815.517.818.917.417.118.919.125.518.320.716.917.117.217.717.314.716.015.715.515.614.814.814.816.114.514.714.130.3

us-gaap:CounterpartyName, us-gaap:BalanceSheetLocation, us-gaap:TypeOfArrangement

mrk:AstraZeneca, us-gaap:AccountsPayableAndAccruedLiabilities, us-gaap:CollaborativeArrangement



Period End2020-03-312019-12-31
Value326577
Percentage of LiabilitiesCurrent1.42.6
Percentage of Assets0.40.7
Percentage of Assets mrk:AstraZeneca us-gaap:AccountsPayableAndAccruedLiabilities us-gaap:CollaborativeArrangement0.00.0

mrk:Eisai, us-gaap:AccountsPayableAndAccruedLiabilities, us-gaap:CollaborativeArrangement



Period End2020-03-312019-12-31
Value425700
Percentage of LiabilitiesCurrent1.83.2
Percentage of Assets0.50.8
Percentage of Assets mrk:Eisai us-gaap:AccountsPayableAndAccruedLiabilities us-gaap:CollaborativeArrangement0.00.0

Debt Current

us-gaap:DebtCurrent



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
Value63613610341138163175530836563379205530575157318150375681487644211325852543248347282704927544778559452139765582473643152029392229301990245525232202240041164147382213792297
Percentage of DebtCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.54.34.14.53.96.44.34.02.43.55.63.45.20.61.50.72.12.52.52.44.42.79.14.67.94.33.75.24.54.11.93.72.81.92.32.42.12.33.83.93.41.24.9

Long Term Debt Current

Accounts Payable Current

us-gaap:AccountsPayableCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value357237383198314230183318309130243162310226202934248428072481251422412533202323352091262522792326243422742469225320841753180416742358246222822143240223082242217120742236617
Percentage of AccountsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.24.43.83.73.74.03.63.63.73.52.93.22.62.92.52.62.32.52.02.31.92.72.22.42.22.22.32.12.01.71.71.62.22.32.12.02.32.22.12.01.92.01.3

Accrued Income Taxes Current

us-gaap:AccruedIncomeTaxesCurrent



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
Value103373687363480719717596617177083961979233022391208121318641560211918782450160624671925952511298409107512001512109111907811462117413261243162987972312851426
Percentage of AccruedIncomeTaxesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.20.91.00.81.02.40.90.80.80.80.42.12.42.31.21.31.91.52.11.82.31.62.40.20.50.21.20.41.01.11.41.01.10.71.41.11.31.21.50.80.61.13.0

Other Liabilities Current

us-gaap:OtherLiabilitiesCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value109321254911768110541008110151977697559709104279992936386581027490879255100431121696109517986710523980888298707950191838872956997378923891788239731922887478514
Percentage of OtherLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets12.914.914.113.212.212.311.511.511.311.910.910.19.010.89.29.610.211.09.59.39.110.79.69.08.09.08.68.39.09.28.48.58.49.38.78.28.0

Dividends Payable Current

us-gaap:DividendsPayableCurrent



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
Value158515871434143914621458130413091317132013021301131413161292129213071309128812951306130812881303132713211289128613381343131513081281128111661176117711761175118211891189803
Percentage of DividendsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.91.91.71.71.81.81.51.51.51.51.41.41.41.41.31.31.31.31.31.31.21.31.31.31.21.31.21.21.31.31.21.21.21.21.11.11.11.11.11.11.11.11.7

Liabilities Noncurrent

us-gaap:CounterpartyName, us-gaap:BalanceSheetLocation, us-gaap:TypeOfArrangement

us-gaap:LiabilitiesNoncurrent

mrk:Eisai, us-gaap:OtherNoncurrentLiabilities, us-gaap:CollaborativeArrangement



Period End2020-03-312019-12-31
Value300525
Percentage of LiabilitiesNoncurrent100.0100.0
Percentage of Assets0.40.6
Percentage of Assets mrk:Eisai us-gaap:OtherNoncurrentLiabilities us-gaap:CollaborativeArrangement0.00.0

Long Term Debt

Long Term Debt Noncurrent

us-gaap:LongTermDebtNoncurrent



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
Value2163722736226772277122721198061993619959215012135321838217062343724274236562364223656239292412424069255061869918566185901958920539226472252616089162541757115057152281552515692157831564415482140311383515281160743943
Percentage of LongTermDebtNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets25.526.927.227.127.624.023.423.525.024.323.823.424.325.524.124.524.023.523.823.523.519.018.219.018.119.421.321.115.115.316.514.314.414.814.714.914.814.613.013.013.714.38.4

Deferred Tax Liabilities Noncurrent

Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent

Minority Interest

us-gaap:MinorityInterest



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
Value959487102131181234237233233251249251220213899591921901521441361582589256125872605257724432465247924542426245624262455242924552434246524342408
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.10.20.20.30.30.30.30.30.30.30.20.20.10.10.10.10.20.10.10.10.22.42.42.42.42.42.32.32.32.32.32.32.32.32.32.32.32.22.25.1

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value11550119701108511283115851204111887120281147311117771380688324851487938378737473457887791376777813696881757956813610327
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets13.614.213.313.414.114.614.014.113.312.78.48.78.68.98.98.77.57.27.87.77.17.96.88.47.37.79.7

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
Value26205259072683827635275392670132422325293366834336382483946339837400884374443357438064467645587464484776548647452244835849975497654741947500530295302055747551945486054517551405549654384543765559255231578785905818758
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 Assets30.930.732.232.933.432.338.138.339.139.141.742.541.342.044.544.944.443.945.045.344.149.544.449.446.147.144.644.449.950.052.452.352.051.951.852.351.451.451.652.051.952.739.7

Common Stock Value

us-gaap:CommonStockValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value17881788178817881788178817881788178817881788178817881788178817881788178817881788178817881788178817881788178817881788178817881788178817881788178817881788178817861786178129
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.12.12.12.12.22.22.12.12.12.02.01.91.91.91.81.91.81.81.81.71.71.81.81.81.61.71.71.71.71.71.71.71.71.71.71.71.71.71.71.71.61.60.1

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value48272466024580445295440654257942189415234110741350437014504644387441334602845121451924534845660451034569246021399894036639661392573977339915402723998540390399503944138990387633824337400375363924540081405114140443698
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets56.855.255.053.953.551.549.648.847.847.147.748.546.046.346.846.845.844.645.144.042.246.839.341.236.637.237.437.337.937.738.037.937.437.136.436.035.335.536.437.836.336.992.6

Treasury Stock Value

us-gaap:TreasuryStockValue



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
Value57161559505492553570517365092946166454014404143794421194205341157405463971739377391253853437427362253590335262338953155129745295912935329334251292471723862239682380423792234152241622324224332250722315210442104430735
Percentage of TreasuryStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets67.366.365.963.862.861.654.253.451.249.845.945.342.642.540.440.839.637.937.035.333.135.933.332.227.428.027.627.423.723.322.422.722.622.622.021.121.121.220.921.018.918.865.1

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value-6391-6193-5390-5362-5346-5545-5151-5122-5060-4910-4945-5094-5080-5226-4252-4086-4194-4148-4573-4332-4167-4323-2998-2444-2179-2197-4698-4760-4629-4682-3040-3126-3217-3132-2713-2776-3170-3216-3490-4658-3571-2766-2553
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-7.5-7.3-6.5-6.4-6.5-6.7-6.1-6.0-5.9-5.6-5.4-5.5-5.3-5.5-4.3-4.2-4.2-4.1-4.5-4.2-3.8-4.4-2.9-2.5-2.0-2.1-4.4-4.5-4.4-4.4-2.9-3.0-3.0-3.0-2.5-2.6-3.0-3.0-3.2-4.4-3.2-2.5-5.4

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value707479442263084133635922793338211554015-1171331728636322971161521584247330525852284-116443482315236123411809313929202154323345772852172135392591332413662242-312749712
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues5.940.434.126.212.432.725.932.311.538.5-11.333.43.035.928.216.423.241.632.826.424.2-11.141.221.223.021.915.427.323.718.426.338.123.514.929.323.329.312.022.2-5.212.713.2

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value-1628-763191-242536821781660673-197-58671-11273193-2563-890-14981741-617-612525-66057204-3722-49-3807-1153-4398-1839-298-270-1684-263-1048105-1007194463-3148-128641201126181390
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-13.5-6.41.5-20.63.419.815.46.4-2.0-0.66.5-11.333.8-25.3-8.4-15.218.7-6.0-0.625.8-70.168.7-35.3-0.4-37.1-10.8-37.5-16.0-2.4-2.3-13.7-2.2-8.60.9-8.31.84.1-27.6-127.5198.544.425.8

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value-1490-2011-3152-2084-1614-5566-1905-2967-2722-5785536-62181461-1977-835-3381-2851-2407-2533-54855155-96431279-83691620-1421-1218-738-586-725-2231-2244-1257-1172-1294-1625-3463942-1849-23722975-391
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-12.4-16.9-25.4-17.7-14.9-50.6-17.6-28.4-27.1-55.45.2-62.615.5-19.5-7.9-34.3-30.6-23.6-25.1-56.154.7-92.012.1-76.515.8-13.3-10.4-6.4-4.8-6.2-18.1-18.7-10.3-10.1-10.7-14.6-30.58.2-18.3-39.250.4-7.3

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value707479442263084133635922793338211554015-1171331728636322971161521584247330525852284-116443482315236123411809313929202154323345772852172135392591332413662242-312749712
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues5.940.434.126.212.432.725.932.311.538.5-11.333.43.035.928.216.423.241.632.826.424.2-11.141.221.223.021.915.427.323.718.426.338.123.514.929.323.329.312.022.2-5.212.713.2

Net Income Loss

us-gaap:NetIncomeLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value32192356190126702915182719501707736-1046-5619461551-5952184120511259771826687953731689520041705112490615939071729179317381512169220241043-5313417522986495342415561425
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues26.719.915.322.727.016.618.116.37.3-10.0-0.519.616.4-5.920.712.212.19.618.17.010.169.88.518.316.610.28.214.97.715.114.614.812.314.116.79.0-4.43.16.62.664.456.626.426.5

us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-30
Value32192356190126702915182719501707736-1046-5619451551-595218512051125977182668695373168952004170515939071730179317381512169320241043-53134175229964953424
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.099.9100.0100.0100.0100.0100.0100.0100.099.9100.0100.0100.0100.0100.0100.0100.0100.1100.0100.0100.0100.1100.0100.0100.0100.0100.0100.1100.0100.0
Percentage of Revenues26.719.915.322.727.016.618.116.37.3-10.0-0.519.616.4-5.920.712.212.19.618.17.010.169.88.518.316.614.97.715.114.614.812.314.116.79.0-4.43.16.62.664.456.6
Percentage of Revenues us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Profit Loss

us-gaap:ProfitLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value32192363190726442862177819581716741-1038-5119511556-5872188120911309821831688958732784220331731115093516169491763182017671543172420541071-5003717803306524345515881455
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues26.719.915.422.526.516.218.116.47.4-9.9-0.519.616.5-5.820.812.312.19.618.27.010.269.98.018.616.910.48.515.18.115.314.815.112.614.316.99.2-4.13.36.92.964.657.126.927.0

Depreciation Depletion And Amortization

us-gaap:DepreciationDepletionAndAmortization



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value8219368459738981095106112261137112811541162119311551175155015611560157016081637157316111753175416741661172318041790186119031832183118661879194716871249393489443
Percentage of DepreciationDepletionAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidationItems

us-gaap:MaterialReconcilingItems



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value381404382427359328324332350342334332370357365438430398383393396557595
Percentage of DepreciationDepletionAndAmortization46.443.245.243.940.030.030.527.130.830.328.928.631.030.931.128.327.525.524.424.424.235.436.9

Increase Decrease In Other Operating Capital Net

Increase Decrease In Inventories

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value-1628-763191-242536821781660673-197-58671-11273193-2563-890-14981741-617-612525-66057204-3722-49-3807-1153-4398-1839-298-270-1684-263-1048105-1007194463-3148-128641201126181390
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-13.5-6.41.5-20.63.419.815.46.4-2.0-0.66.5-11.333.8-25.3-8.4-15.218.7-6.0-0.625.8-70.168.7-35.3-0.4-37.1-10.8-37.5-16.0-2.4-2.3-13.7-2.2-8.60.9-8.31.84.1-27.6-127.5198.544.425.8

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value-1490-2011-3152-2084-1614-5566-1905-2967-2722-5785536-62181461-1977-835-3381-2851-2407-2533-54855155-96431279-83691620-1421-1218-738-586-725-2231-2244-1257-1172-1294-1625-3463942-1849-23722975-391
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-12.4-16.9-25.4-17.7-14.9-50.6-17.6-28.4-27.1-55.45.2-62.615.5-19.5-7.9-34.3-30.6-23.6-25.1-56.154.7-92.012.1-76.515.8-13.3-10.4-6.4-4.8-6.2-18.1-18.7-10.3-10.1-10.7-14.6-30.58.2-18.3-39.250.4-7.3

Proceeds From Issuance Of Long Term Debt

us-gaap:ProceedsFromIssuanceOfLongTermDebt



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312010-12-312010-09-302009-12-312009-09-30
Value00004958000010710800-2-1794131450101993000
Percentage of ProceedsFromIssuanceOfLongTermDebt0.00.00.00.0100.00.00.00.00.0100.00.0100.00.00.0100.0100.0100.0100.00.0100.00.0100.00.00.00.0

Repayments Of Long Term Debt

us-gaap:RepaymentsOfLongTermDebt



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value195100001280-1200510038020130003515008511032902661022350618202270121261465163362201707
Percentage of RepaymentsOfLongTermDebt100.00.00.00.00.0100.0100.0100.0100.0100.00.0100.0100.00.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Payments For Repurchase Of Common Stock

us-gaap:PaymentsForRepurchaseOfCommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-312010-09-30
Value128110501405123510905933996159656617021591134101910168456609131181128170910151620267022461167580115245452945656210450296
Percentage of PaymentsForRepurchaseOfCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0

Repayments Of Long Term Debt

us-gaap:RepaymentsOfLongTermDebt



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value195100001280-1200510038020130003515008511032902661022350618202270121261465163362201707
Percentage of RepaymentsOfLongTermDebt100.00.00.00.00.0100.0100.0100.0100.0100.00.0100.0100.00.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Debt Instrument Interest Rate Stated Percentage

Effective Income Tax Rate Continuing Operations

us-gaap:EffectiveIncomeTaxRateContinuingOperations



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-30
Value0.1610.00200000000000000180.1870.1890.0670.0119999999999999550.2650.1780.4490.3741.2550.20.223-0.0930.2420.1960.304-0.0680.2360.1470.3060.1510.435-0.0750.1720.2460.249-0.0430.00100000000000000090.2050.3210.295-0.0289999999999999980.267-0.2280.380.035000000000000030.2530.3710.464-0.116000000000000020.3190.193
Percentage of EffectiveIncomeTaxRateContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

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 End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value770000.0154000.00.00.0609000.0226000.00.024000.0831000.08000.00.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod100.0100.00.00.0100.0100.00.0100.0100.0100.00.0

us-gaap:RestrictedStockUnitsRSU



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value00-150006000
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod7.5-122.70.00.011.5119.50.028662.514.6175.00.0

Share Based Compensation

us-gaap:ShareBasedCompensation



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value108111101111938791908080768274757780687875836369757856687567788893768286107931091251411321338483113
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

Cash And Cash Equivalents Period Increase Decrease

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents



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
Value7460993478716660807779677828531244866096790177861170865158524
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Proceeds From Repayments Of Short Term Debt

us-gaap:ProceedsFromRepaymentsOfShortTermDebt



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value3583182-360603-413528302252070-1-19881986-38083784-909918-90-143-37062177-35374963-50353149880904-19171003634-280-401593-197-1483-85
Percentage of ProceedsFromRepaymentsOfShortTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidationItems

mrk:AmortizationOfPurchaseAccountingAdjustments

us-gaap:MaterialReconcilingItems



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value2953143293783975206797327337347657797787607721024113411941184123812389841008
Percentage of AmortizationOfPurchaseAccountingAdjustments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CounterpartyName, us-gaap:IncomeStatementLocation, us-gaap:TypeOfArrangement

mrk:CollaborativeArrangementProfitSharing

mrk:BayerAG, us-gaap:Sales, us-gaap:CollaborativeArrangement



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
Value53605051423947282535323153
Percentage of CollaborativeArrangementProfitSharing100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CounterpartyName, us-gaap:IncomeStatementLocation, us-gaap:TypeOfArrangement

mrk:CollaborativeArrangementSalesNet

mrk:BayerAG, us-gaap:Sales, us-gaap:CollaborativeArrangement



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
Value56575753485247474344383631
Percentage of CollaborativeArrangementSalesNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CounterpartyName, us-gaap:ProductOrService, us-gaap:TypeOfArrangement

mrk:ContingentPaymentsCollaborativeArrangement

mrk:AstraZeneca, mrk:Lynparza, mrk:RegulatoryMilestones



Period End2020-03-312019-09-30
Value17000
Percentage of ContingentPaymentsCollaborativeArrangement100.00.0

us-gaap:CounterpartyName, us-gaap:TypeOfArrangement

mrk:AstraZeneca, mrk:SalesBasedMilestones



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-07-31
Value310000-3003400-25004100
Percentage of ContingentPaymentsCollaborativeArrangement182.40.00.00.00.00.00.00.0

mrk:BayerAG, mrk:SalesBasedMilestones



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value40000040000
Percentage of ContingentPaymentsCollaborativeArrangement23.50.00.00.00.00.00.0

mrk:Eisai, mrk:RegulatoryMilestones



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-03-31
Value135000135-25385
Percentage of ContingentPaymentsCollaborativeArrangement7.90.00.00.00.00.00.0

mrk:Eisai, mrk:SalesBasedMilestones



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-03-31
Value3000-420003420-2103970
Percentage of ContingentPaymentsCollaborativeArrangement176.50.00.00.00.00.00.0

mrk:CostsExpensesAndOther



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value821990771005085017749839481298379869285541012574917431114717649834076889399767689788044-132990679043817395079765912110403927096319224107139670104799851127951062710105
Percentage of CostsExpensesAndOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CounterpartyName

mrk:Licenseoptionpaymentrelatedtocollaborativearrangement

mrk:Eisai



Period End2020-03-312019-03-31
Value200325
Percentage of Licenseoptionpaymentrelatedtocollaborativearrangement100.0100.0

us-gaap:CounterpartyName, us-gaap:StatementScenario

mrk:Eisai, srt:ScenarioForecast



Period End2021-03-312020-03-31
Value125200
Percentage of Licenseoptionpaymentrelatedtocollaborativearrangement0.0100.0

us-gaap:CounterpartyName, us-gaap:ProductOrService, us-gaap:SubsequentEventType, us-gaap:TypeOfArrangement

mrk:MilestonePaymentsMadetoCollaborativePartner

mrk:AstraZeneca, mrk:Lynparza, us-gaap:SubsequentEvent, mrk:SalesBasedMilestones



Period End2020-01-31
Value250
Percentage of MilestonePaymentsMadetoCollaborativePartner100.0

mrk:Eisai, mrk:Lenvima, us-gaap:SubsequentEvent, mrk:SalesBasedMilestones



Period End2020-01-31
Value150
Percentage of MilestonePaymentsMadetoCollaborativePartner60.0

us-gaap:CounterpartyName, us-gaap:ProductOrService, us-gaap:TypeOfArrangement

mrk:AstraZeneca, mrk:Lynparza, mrk:SalesBasedMilestones



Period End2020-01-31
Value250
Percentage of MilestonePaymentsMadetoCollaborativePartner100.0

mrk:Eisai, mrk:Lenvima, mrk:SalesBasedMilestones



Period End2020-03-312019-12-312019-09-30
Value30000
Percentage of MilestonePaymentsMadetoCollaborativePartner0.00.00.0

mrk:Noncontrollinginterestchangesinownershipinterestother



Period End2020-03-312019-06-302019-03-31
Value133
Percentage of Noncontrollinginterestchangesinownershipinterestother100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest



Period End2020-03-312019-06-302019-03-31
Value133
Percentage of Noncontrollinginterestchangesinownershipinterestother100.0100.0100.0

mrk:OtherNonoperatingIncomeExpenseOther



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
Value2815829-153-83-32611238315601615332-4684310749-56543278-1510774325707200-21-13-1057
Percentage of OtherNonoperatingIncomeExpenseOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mrk:RestructuringReserveNoncashActivity



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
Value1188287-97-37-391463-1418-27223951217106
Percentage of RestructuringReserveNoncashActivity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestructuringCostAndReserve

mrk:AcceleratedDepreciation



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
Value5360305-98-34-11802121-6-1044917339780
Percentage of RestructuringReserveNoncashActivity481.868.2106.3101.091.928.257.10.066.7-864.3-33.3385.2222.743.664.744.775.5

us-gaap:OtherRestructuring



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
Value-4228-181-3-28661-1352477-27221812026
Percentage of RestructuringReserveNoncashActivity-381.831.8-6.3-1.08.171.842.9100.033.3964.3133.3-285.2-122.756.435.355.324.5

mrk:SalesDiscounts



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value320032003000290026003000260028002400250029002800
Percentage of SalesDiscounts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidationItems

mrk:SegmentReportingUnallocatedOtherExpensesNet

us-gaap:MaterialReconcilingItems



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value122510581699123810828338218345386176268297768748739051005117510751001115013871841
Percentage of SegmentReportingUnallocatedOtherExpensesNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccountsReceivableSale



Period End2020-03-312019-12-312018-12-31
Value190027001100
Percentage of AccountsReceivableSale100.0100.0100.0

us-gaap:AllocatedShareBasedCompensationExpenseNetOfTax



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value938796797777655357525355485257445254394752476064525670618393
Percentage of AllocatedShareBasedCompensationExpenseNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value2332213145241310106354123238697107117170138185173194182223256
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1



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
Value3312286-36-55228636-10437434-43610910-24-681561310222
Percentage of BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect



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-247420631211-14171101392516826-1610-1805115-39225193
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentRisk, us-gaap:IncomeStatementLocation

us-gaap:ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1

us-gaap:InterestRateSwap, us-gaap:OtherNonoperatingIncomeExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value67-1396452350-15-22-62-37-231
Percentage of ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentRisk, us-gaap:IncomeStatementLocation

us-gaap:ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge1

us-gaap:InterestRateSwap, us-gaap:OtherNonoperatingIncomeExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value-67196-13-55-33-5991562439-20
Percentage of ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonStockDividendsPerShareDeclared



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value0.610.60999999999999990.550.550.550.550.480.480.480.480.470.470.470.47000000000000020.460.460.460.459999999999999960.450.450.450.449999999999999960.440.440.440.430.430.430.429999999999999940.420.420.420.420000000000000150.380.380.380.38000000000000010.380.380.380.38000000000000010.380.380.38
Percentage of CommonStockDividendsPerShareDeclared100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxExpenseBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value82-170-237-343194-118-133-228-30-2020-329-218-54-145655-50-7082-463-204-179-827-527-942-304-7195282-324-41-563-133-627-214-349-423-471152-891259495153
Percentage of DeferredIncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses

country:US, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-75-38-43-35-35-58-63-56-56-45-46-44-44-30-32-29
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-31-17-16-16-16-20-21-21-21-26-25-24-23-23-21-21
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses41.344.737.245.745.734.533.337.537.557.854.354.552.376.765.672.4

us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit

country:US, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-12-12-12-12-12-13-12-13-13-13-13-13-13-14-14-14
Percentage of DefinedBenefitPlanAmortizationOfPriorServiceCostCredit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-3-3-3-3-3-3-3-3-3-3-3-3-2-2-3-3
Percentage of DefinedBenefitPlanAmortizationOfPriorServiceCostCredit25.025.025.025.025.023.125.023.123.123.123.123.115.414.321.421.4

us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-22-19-20-21-21-21-21-21-21-24-24-24-25-27-26-26
Percentage of DefinedBenefitPlanAmortizationOfPriorServiceCostCredit183.3158.3166.7175.0175.0161.5175.0161.5161.5184.6184.6184.6192.3192.9185.7185.7

us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanCostOfProvidingSpecialOrContractualTerminationBenefitRecognizedDuringPeriod

country:US, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value32433211711333351261
Percentage of DefinedBenefitPlanCostOfProvidingSpecialOrContractualTerminationBenefitRecognizedDuringPeriod100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value1701020002111210
Percentage of DefinedBenefitPlanCostOfProvidingSpecialOrContractualTerminationBenefitRecognizedDuringPeriod33.329.20.033.30.0200.00.00.00.06.133.333.320.016.716.70.0

us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets

country:US, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value194204202205206217209211214216210218218208203210
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value1031061061071081051061081131011019794949597
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets53.152.052.552.252.448.450.751.252.846.848.144.543.145.246.846.2

us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value19181818182021212119202019191934
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets9.88.88.98.88.79.210.010.09.88.89.59.28.79.19.416.2

us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanInterestCost

country:US, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value109115115113114108109107108113114113113114116113
Percentage of DefinedBenefitPlanInterestCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value34444444454443454645444241495152
Percentage of DefinedBenefitPlanInterestCost31.238.338.338.939.540.739.442.142.639.838.637.236.343.044.046.0

us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value14171718171717181820202020201921
Percentage of DefinedBenefitPlanInterestCost12.814.814.815.914.915.715.616.816.717.717.517.717.717.516.418.6

us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost

country:US, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value6941288425323630352471166-8
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value3326911102711161834312930433235
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost47.863.432.1137.5250.0108.034.444.460.097.1129.2414.3272.7716.7533.3-437.5

us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-14-14-14-10-10-10-11-11-13-27-10-12-12-19-15-27
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost-20.3-34.1-50.0-125.0-250.0-40.0-34.4-30.6-43.3-77.1-41.7-171.4-109.1-316.7-250.0337.5

us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToCurtailments

country:US, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-2-8-500-3-3-525-4-1-3-2-30
Percentage of DefinedBenefitPlanRecognizedNetGainLossDueToCurtailments100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value1-6000-20103110020
Percentage of DefinedBenefitPlanRecognizedNetGainLossDueToCurtailments-50.075.0-0.00.00.066.7-0.0-20.00.060.0-25.0-100.0-0.0-0.0-66.70.0

us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanServiceCost

country:US, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value86727674718177858378807777706673
Percentage of DefinedBenefitPlanServiceCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value74605860605756586763666361595962
Percentage of DefinedBenefitPlanServiceCost86.083.376.381.184.570.472.768.280.780.882.581.879.284.389.484.9

us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value13121212121415141414151414131413
Percentage of DefinedBenefitPlanServiceCost15.116.715.816.216.917.319.516.516.917.918.818.218.218.621.217.8

us-gaap:DerivativeInstrumentRisk, us-gaap:IncomeStatementLocation

us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet

us-gaap:CurrencySwap, us-gaap:OtherNonoperatingIncomeExpense



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value1808-2-11857195-28-119347
Percentage of DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignExchangeFuture, us-gaap:Sales



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value7116-10014-8000
Percentage of DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet3.9137.5-300.08.50.07.228.6-0.00.00.0

us-gaap:DividendsCommonStockCash



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value154915581392144014291437128412911301130512891286129713001278127612811289126912751282128412721299130113069034-64321284128712851173118111791178117811811193
Percentage of DividendsCommonStockCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value154915581392144014291437128412911301130512891286129713001278127612811289126912751282128412721299130113069034-64321284128712851173118111791178117811811193
Percentage of DividendsCommonStockCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents



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-6343-54820-65-32-2621541979106253
Percentage of EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-30
Value151514151413141315-13232522232425202423261922232417212320242829241930373237424845422626
Percentage of EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EquitySecuritiesFvNiGainLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value521201658-25-5219815325
Percentage of EquitySecuritiesFvNiGainLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EquitySecuritiesFvNiUnrealizedGainLoss



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value-4119-25114-9510
Percentage of EquitySecuritiesFvNiUnrealizedGainLoss100.0100.0100.0100.0100.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements



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
Value10600085901756001000000025000500000
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements100.00.00.00.0100.0100.00.0100.0100.00.0100.00.00.00.00.00.0100.00.00.00.0100.00.00.00.00.0

us-gaap:ForeignCurrencyTransactionGainLossBeforeTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-30
Value-54-21-38-27-101-26-42-71-7166-198-95-3-37-38-239-228-716-95-66-61-20-34-11-55-212-55-50-13-67-41-59-1-42-130-74-809020
Percentage of ForeignCurrencyTransactionGainLossBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GoodwillAndIntangibleAssetImpairment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-31
Value0176612148104296000529027775914
Percentage of GoodwillAndIntangibleAssetImpairment0.0100.0100.0100.0100.0100.00.00.00.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOperatingCapital



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-30
Value3666914432935760-19914732922-19825355641563875-223392618-206841570311732825851474-8214181067-787-105610622272
Percentage of IncreaseDecreaseInOperatingCapital100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestPaid



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-30
Value2502122731611952421941551862181621811622161491611602011591551383081682081682113152591371873396750144321130182129187-44
Percentage of InterestPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentIncomeInterest



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-30
Value254961758986928185101909697848778797568717476695961676557554776756245514126232112103370
Percentage of InvestmentIncomeInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidationItems

us-gaap:MaterialReconcilingItems



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value25496175898692818510190969784877879756871747669
Percentage of InvestmentIncomeInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value-90-136-128-140-141-128-119-130-135-131-121-131
Percentage of NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OciBeforeReclassificationsBeforeTaxAttributableToParent



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value-15210640218-110-5425107-13983-19873-49750-181-111611-1662-551
Percentage of OciBeforeReclassificationsBeforeTaxAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value0-40-1-7260-1-1411229-4-804-177-183-35692396-1909-715
Percentage of OciBeforeReclassificationsBeforeTaxAttributableToParent-0.0-3.80.0-0.50.0-0.01.9-4.00.01.9-20.9-4.80.089.4-250.771.492.3-1.7-8.11.0114.9129.8

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value17818610-1311529265-181-41-88-169
Percentage of OciBeforeReclassificationsBeforeTaxAttributableToParent-117.1175.525.0-6.00.0-26.4-490.7-724.00.0-82.2121.6

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value385576178-17-112-711702687-146-227654-27-8169335-26
Percentage of OciBeforeReclassificationsBeforeTaxAttributableToParent-2.07.5137.534.90.0-7.331.5-448.00.0158.9-18.7104.80.011.1104.1-110.2-3.644.8-5.415.2-2.14.7

us-gaap:AccumulatedTranslationAdjustment



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value-333-84-2515645-147-301319-2623-25263-574702559923-87-41-53-289-244
Percentage of OciBeforeReclassificationsBeforeTaxAttributableToParent219.1-79.2-62.571.60.0133.6557.41276.00.021.518.0316.90.0-35.4349.3-202.03.148.136.9-8.717.444.3

us-gaap:OciBeforeReclassificationsNetOfTaxAttributableToParent



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value-1953444221-105-1694150-8223-14415246520-144-73276-1274-556
Percentage of OciBeforeReclassificationsNetOfTaxAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value5-405-561002312-11265-529-156-115-36422583-1291-489
Percentage of OciBeforeReclassificationsNetOfTaxAttributableToParent-2.6-11.80.02.30.0-0.0-0.050.00.0-7.3-325.02.20.0108.3-75.7-78.381.2-3.5-11.01.1101.387.9

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value1411478-108423209-143-16-57-110
Percentage of OciBeforeReclassificationsNetOfTaxAttributableToParent-72.3432.418.2-4.50.0-21.9-123.7-3575.00.0-38.01375.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value385576178-17-112-831512980-138-257170-39-57-98320-33
Percentage of OciBeforeReclassificationsNetOfTaxAttributableToParent-1.523.5125.034.40.0-7.610.1-2800.00.0100.7-362.535.90.017.446.7152.2-7.539.612.330.1-1.65.9

us-gaap:AccumulatedTranslationAdjustment



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value-344-117-1915017-136-361257-226747309-6168224412193-85-17-177-316-316
Percentage of OciBeforeReclassificationsNetOfTaxAttributableToParent176.4-344.1-43.267.90.0129.5213.66425.00.044.7-587.5138.60.0-56.9160.5263.017.959.023.3-64.124.856.8

us-gaap:OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-30
Value-18-174482403-991353543-306363-67-1446-29
Percentage of OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-30
Value-60-15-11-15-40-30-36-13-47-2614410828-29-42-35463
Percentage of OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-30
Value-344-117-19150-136-361257674730982244121-85-17-177-316
Percentage of OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value43-22672-4-3-106-51152182-43-131-140-54-79-95230-37-38335-3885-229
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value-5-18600-6-1650-1-399133-9-275-21-681270-213-618-226-216
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsTax-11.682.30.0-0.0200.0155.7-0.0-0.9-14.3120.7-30.2-2.36.40.038.986.1-1.1117.45.4-2.60.9159.3-4520.094.3

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value37-23392-331656-38-25-31-59
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsTax86.010.254.2-50.0100.0-29.2-120.048.7-181.0-30.572.145.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value0000000001219-37-835-1612-2415101572
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsTax0.0-0.00.0-0.0-0.0-0.0-0.00.00.014.6-44.22.3-5.00.0-5.6-6.316.85.264.9-39.53.0-3.9140.0-0.9

us-gaap:AccumulatedTranslationAdjustment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value11-1733-6628-116062-4-44-72-4642-1211-22-70-2-2412427724
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsTax25.67.545.8150.0-200.0-26.4220.052.2295.2-4.9102.355.032.90.022.2-13.923.2-30.45.463.237.0-7.01440.0-1.7

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-30
Value10491-52-4827266-70-66-143
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentRisk

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax

us-gaap:ForeignExchangeContract



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value178-9618610-1311529264-181-42-88-169
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestRateSwap



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-10-1-1-4-1-1-1-1
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax-0.6-0.0-0.5-10.030.8-0.9-3.4-0.40.6

us-gaap:DerivativeInstrumentRisk

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax

us-gaap:ForeignExchangeContract



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value-46-66-70-75-44-126739319-13-49
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentRisk

us-gaap:OtherComprehensiveIncomeLossNetInvestmentHedgeGainLossBeforeReclassificationAndTax

mrk:EurodominatedNotes



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value51-77150-2830129-38271-178
Percentage of OtherComprehensiveIncomeLossNetInvestmentHedgeGainLossBeforeReclassificationAndTax100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignExchangeContract



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value318-1-1711-610122
Percentage of OtherComprehensiveIncomeLossNetInvestmentHedgeGainLossBeforeReclassificationAndTax5.9-23.4-0.760.736.7-4.7-26.34.4-1.1

us-gaap:DerivativeInstrumentRisk, us-gaap:IncomeStatementLocation

us-gaap:OtherComprehensiveIncomeLossNetInvestmentHedgeGainLossReclassificationBeforeTax

us-gaap:ForeignExchangeContract, us-gaap:OtherNonoperatingIncomeExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value888884430
Percentage of OtherComprehensiveIncomeLossNetInvestmentHedgeGainLossReclassificationBeforeTax100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:OtherComprehensiveIncomeLossNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value-198-803-28-16199-394-29-6212435149-14146-974-166108-46425-241-165156-1325-554-2651862-13153-16428691-85-41963394
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value-198-803-28-16199-394-29-6212435149-14146-974-166108-46425-241-165156-1325-554-2651853-16428691-85-41963
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:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value-198-803-28-16199-394-29-6212435149-14146-974-166108-46425-241-165156-1325-554
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value60-746151115-531403036333134726-519-144-108-28473294235-1282-463
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent-30.392.9-53.6-68.87.5134.8-137.9-48.429.0951.48.7-335.717.853.386.7-100.060.9111.3-12.0-25.522.496.883.6

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value104-12691-52-487427266-70-5-66-143
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent-52.515.7-325.0325.0-24.1-18.8-93.1-429.0-56.5-14.3-44.31021.4

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value-18-13-17448246403-99-2711353543-140-306363-35-67-144624-29
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent9.11.660.7-275.041.2-11.7-137.9-4.8-79.8-774.390.6-250.029.514.418.158.3-137.0-8.227.88.529.5-1.85.2

us-gaap:AccumulatedTranslationAdjustment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value-34482-117-1915017-136-361257-226747309-6168224412171-85-17-177-316-316
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent173.7-10.2417.9118.875.4-4.3469.0582.3207.3-62.945.0-335.7211.663.2-49.4225.9-263.016.735.310.3-113.523.857.0

us-gaap:OtherNoncashIncomeExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-14335-1056-120-393-156-379-50-30094-9128-66-50-100-97-60-120-26-55145-14277115-326-62177-72-71-530-249234222-150183
Percentage of OtherNoncashIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForProceedsFromOtherInvestingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value-136-58-235-47-38-252-124526983-59-11452-47543-1078618-140-1252-1446106-58-47-120-32-32112662919-10-107-21-11-17711-73
Percentage of PaymentsForProceedsFromOtherInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForRestructuring



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
Value290105153102101182200302203159162180221309140137174
Percentage of PaymentsForRestructuring100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestructuringCostAndReserve

us-gaap:OneTimeTerminationBenefits



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
Value16812772576911414625013910457641031626677108
Percentage of PaymentsForRestructuring57.9121.047.155.968.362.673.082.868.565.435.235.646.652.447.156.262.1

us-gaap:OtherRestructuring



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
Value122-228145326854526455105116118147746066
Percentage of PaymentsForRestructuring42.1-21.052.944.131.737.427.017.231.534.664.864.453.447.652.943.837.9

us-gaap:PaymentsOfDividendsCommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value15511405139414681428127712851311129912831283130712941271127413001279126312721302128012591282133912901306128012771280127911651175117611751174118111891188804803803803
Percentage of PaymentsOfDividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

us-gaap:PaymentsToAcquireBusinessesGross

mrk:ArQule, us-gaap:SubsequentEvent



Period End2020-01-31
Value2700
Percentage of PaymentsToAcquireBusinessesGross100.0

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312011-12-312011-09-302010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value254525-1270059037204904130626211014736-748807598-3519370000246001041010131000130
Percentage of PaymentsToAcquireBusinessesNetOfCashAcquired100.0100.0100.0100.00.0100.00.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.00.0100.00.00.0100.0100.0100.0100.00.00.00.0100.0

us-gaap:CounterpartyName, us-gaap:StatementScenario

us-gaap:PaymentsToAcquireIntangibleAssets

mrk:Eisai, srt:ScenarioForecast



Period End2021-03-312020-03-31
Value125200
Percentage of PaymentsToAcquireIntangibleAssets100.0100.0

mrk:Eisai, us-gaap:ScenarioForecast



Period End2021-03-312021-01-312020-03-312020-01-312019-03-312019-01-31
Value125125200200325325
Percentage of PaymentsToAcquireIntangibleAssets100.00.0100.00.00.00.0

us-gaap:PaymentsToAcquireMarketableSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value498225708369741095165139221326234221173351292955673729398823674256380435825039871338515555682540105950289012762725263916201684138213711591
Percentage of PaymentsToAcquireMarketableSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireProductiveAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value9861137959782595929653583450715441393339551409375279493316271203490320302205351778414431331603431365324660337337342557303365235
Percentage of PaymentsToAcquireProductiveAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value-316245-33-115-92-36-12-194-83-28-81-63-23-1-8-99-101-38101-813623490-1140-510-339-4-22416789-75-57-625962-154-93
Percentage of ProceedsFromPaymentsForOtherFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleMaturityAndCollectionsOfInvestments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value181611632524303618994009384055551848313131702544681930533912276846203882390363416287330737055470263231612176143313772797140918501366152483420261426272596450627193119
Percentage of ProceedsFromSaleMaturityAndCollectionsOfInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfIntangibleAssets



Period End2020-03-312019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value7515141050212510050950075
Percentage of ProceedsFromSaleOfIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.00.0100.0

us-gaap:ProceedsFromStockOptionsExercised



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value261740131173130162692301873953131494091792025157135242179247203931922504592223791273212537507541195178420
Percentage of ProceedsFromStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value-1757328-84-132-1457151243969147165141144173825
Percentage of ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value-69-21-14-14-42-47-40-41-31-31-27-28-12-11-7-7-49-46-54-54-8-34
Percentage of ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent6900.0-28.0-19.2-50.00.056.030.328.30.0-442.9-180.0-22.60.0-28.2-10.1-4.8-29.7-32.6-37.5-31.2-9.8-680.0

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value4771764812-5-72-92-181450
Percentage of ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent-4700.094.7104.1171.40.06.054.563.40.0200.0333.3

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value212511-6-29-32-20-1221824-857551011-516656-8-5
Percentage of ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent-2100.033.315.1-21.40.038.115.28.30.0342.9-53.346.00.012.814.57.5-3.011.34.232.4-9.8-100.0

us-gaap:AccumulatedTranslationAdjustment



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value00000000000000002200000
Percentage of ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent-0.00.00.00.00.0-0.0-0.0-0.00.00.00.00.00.00.00.00.013.30.00.00.00.00.0

us-gaap:ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value3626022-76-107-120167722449295979212051-2
Percentage of ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value-55-19-11-10-30-40-30-34-21-24-21-21-10-12-7-8-51-24-34-32-9-26
Percentage of ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent-1833.3-30.6-18.3-45.50.052.628.028.30.0-2400.0-350.0-27.30.0-54.5-15.9-8.7-53.7-24.7-37.0-26.7-17.61300.0

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value3756603810-4-57-73-11933
Percentage of ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent1233.390.3100.0172.70.05.353.360.80.0900.0550.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value212511-6-29-32-20-1318816-6372587-410537-4-4
Percentage of ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent700.040.318.3-27.30.042.118.710.80.01600.0-100.048.10.022.718.27.6-4.210.35.430.8-7.8200.0

us-gaap:AccumulatedTranslationAdjustment



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value00000000000000002200000
Percentage of ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent0.00.00.00.00.0-0.0-0.0-0.00.00.00.00.00.00.00.00.023.20.00.00.00.0-0.0

us-gaap:ReclassificationFromAociCurrentPeriodTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value-4813136-10-8-25-2513694717255570445253317-12
Percentage of ReclassificationFromAociCurrentPeriodTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value-14-6-2-3-4-12-7-10-7-10-7-6-7-21012-22-20-221-80
Percentage of ReclassificationFromAociCurrentPeriodTax350.0-75.0-15.4-23.1-66.7120.087.540.028.0-76.9-116.7-66.7-14.90.05.90.01.82.9-50.0-38.5-41.53.2-114.3-0.0

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value10141516102-1-15-19-7517
Percentage of ReclassificationFromAociCurrentPeriodTax-250.0175.0115.4123.1166.7-20.012.560.076.0-53.883.3188.9

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value000000001308-2203024-16119-4-1-13
Percentage of ReclassificationFromAociCurrentPeriodTax-0.00.00.00.00.0-0.0-0.0-0.0-4.0230.8133.3-22.242.60.00.08.07.3-1.413.61.935.8-12.9-14.3108.3

us-gaap:RestructuringAndRelatedCostIncurredCost



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value168285296159187150169235104322180210215310212351196340217328225619612421326967278194258163287291690275809116344382895
Percentage of RestructuringAndRelatedCostIncurredCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestructuringCharges



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value7219423259153138171228953061531661512651611349123311319182349376163125870155119191110144219533119668-14121495262871489423764
Percentage of RestructuringCharges100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidationItems

us-gaap:MaterialReconcilingItems



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value7219423259153138171228953061531661512651611349123311319182349376
Percentage of RestructuringCharges100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

us-gaap:PerformanceShares



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value75.65-6.5999999999999940.00.090.50.469999999999998860.00.1000000000000014256.60.00.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue100.0100.00.00.0100.0100.00.0100.0100.00.00.0

us-gaap:RestrictedStockUnitsRSU



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value85.660.049999999999997163.719999999999999-1.079999999999998377.390.27000000000000310.039999999999999152.26999999999999655.88-0.10999999999999943-0.00999999999999801
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue113.2-0.80.00.085.557.40.02270.098.70.00.0

us-gaap:StockholdersEquityOther



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
Value-107-124-127-117-243-216-252-103-2911352-140-115-3682049-491-174-2451310-128-143-306
Percentage of StockholdersEquityOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value-37-99-7728440-46-2113328-153-4712340-6081423477-444-5424968
Percentage of StockholdersEquityOther34.679.860.6-242.7-16.521.38.3-129.1-9.6-11.333.6-107.0-10.9-29.7-2.9-134.5-31.4-33.942.2-174.1-22.2

us-gaap:TreasuryStock



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
Value-70-25-50-401-283-170-231-236-3191505-93-238-4082657-505-408-3221754-79-387-374
Percentage of StockholdersEquityOther65.420.239.4342.7116.578.791.7229.1109.6111.366.4207.0110.9129.7102.9234.5131.4133.961.7270.6122.2

us-gaap:StatementEquityComponents

us-gaap:StockholdersEquityOtherShares

us-gaap:TreasuryStock



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-31
Value11855551571096287
Percentage of StockholdersEquityOtherShares100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:TreasuryStockSharesAcquired

us-gaap:TreasuryStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-312010-09-30
Value16121724146916271031218161614121822241217284639211426101412173209
Percentage of TreasuryStockSharesAcquired100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0

us-gaap:TreasuryStockValueAcquiredCostMethod



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-312010-09-30
Value128110501405123510905933996159656617021591134101910168456609131181128170910151620267022461167580115245452945656210450296
Percentage of TreasuryStockValueAcquiredCostMethod100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0

us-gaap:StatementEquityComponents

us-gaap:TreasuryStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-312010-09-30
Value128110501405223510904933996159656617021591134101910168456609131181128170910151620267022461167580115245452945656210450296
Percentage of TreasuryStockValueAcquiredCostMethod100.0100.0100.0181.0100.083.1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value141414181613150182121212122243032323733333134313121242023202741
Percentage of WeightedAverageNumberDilutedSharesOutstandingAdjustment100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

mrk:DebtSecuritiesandEquitySecuritiesFVNI



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value84326232806487969797717
Percentage of DebtSecuritiesandEquitySecuritiesFVNI100.0100.0100.0100.0100.0100.0

mrk:InventoryNetAndInventoryNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value74767458737073117110685767106539651862836292648362365983634864436360626966577030711772357593775978697930821582818218814181777739776876337621763373217062750673399214
Percentage of InventoryNetAndInventoryNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementScenario

mrk:LesseeOperatingLeaseLeaseNotyetCommencedAmount

srt:ScenarioForecast



Period End2020-04-30
Value221
Percentage of LesseeOperatingLeaseLeaseNotyetCommencedAmount100.0

us-gaap:AdditionalPaidInCapitalCommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value3969739660395613948438768388083976239741398743990239823397763989939939398973991140145402224013940114403554042340340401994045040508399093989140727406464047140550406524066340717406574069040701405564033740196396828319
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent



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
Value898611612211611922921020521022220019519517316718616516314914115318616717114614013714416316314414213112912811110417115210611258
Percentage of AllowanceForDoubtfulAccountsReceivableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:AssetsFairValueDisclosure

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312011-06-302010-12-31
Value841898752814692511432439343293298
Percentage of AssetsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312011-06-302010-12-31
Value7122013253743666671766010509129671497042753974
Percentage of AssetsFairValueDisclosure84.7224.2337.4536.4964.01499.02432.62953.84364.41459.01333.6

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312011-06-302010-12-31
Value000000000013
Percentage of AssetsFairValueDisclosure0.00.00.00.00.00.00.00.00.00.04.4

us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312011-06-302010-12-31
Value15532911328951807363817110941134061531345684285
Percentage of AssetsFairValueDisclosure184.7324.2437.4636.41064.01599.02532.63053.84464.41559.01437.9

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value017315030633411
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument

us-gaap:AssetBackedSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value0134311111
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax0.05.99.78.010.016.733.333.325.09.1

us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value01324362232239
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax0.076.577.472.073.350.066.766.775.081.8

us-gaap:USGovernmentAgenciesDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value03410520000
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax0.017.612.920.016.733.30.00.00.00.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value0003258512716817279
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax0.00.00.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument

us-gaap:AssetBackedSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value00015111316177
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax0.00.00.033.320.012.910.29.59.98.9

us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value000219688812212140
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax0.00.00.066.776.080.069.372.670.350.6

us-gaap:ForeignGovernmentDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value00000189106
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax0.00.00.00.00.01.26.35.45.87.6

us-gaap:USGovernmentAgenciesDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value00001517202317
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax0.00.00.00.04.05.913.411.913.421.5

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value641768208440766338734010300127521437414976
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument

us-gaap:AssetBackedSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value0226434789109612851300145615851548
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis0.012.820.819.417.317.512.611.411.010.3

us-gaap:CommercialPaper



Period End2020-03-312019-12-312018-12-31
Value06680
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis0.037.80.0

us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value060812602666430749856952890299789837
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis0.034.460.565.468.067.967.569.869.465.7

us-gaap:ForeignGovernmentDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value20324199167546658769739
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis3.10.01.51.01.62.35.35.25.34.9

us-gaap:USGovernmentAgenciesDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value622663585758288951448164018332059
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis96.915.017.214.113.112.214.112.912.813.7

us-gaap:AvailableForSaleSecuritiesDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value641785211541236343726110176125871420614908
Percentage of AvailableForSaleSecuritiesDebtSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring, us-gaap:USGovernmentAgenciesDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value00000000068
Percentage of AvailableForSaleSecuritiesDebtSecurities0.00.00.00.00.00.00.00.00.00.5

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:AssetBackedSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value0227437788106912531271139415171476
Percentage of AvailableForSaleSecuritiesDebtSecurities0.012.720.719.116.917.312.511.110.79.9

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:CommercialPaper



Period End2020-03-312019-12-31
Value0668
Percentage of AvailableForSaleSecuritiesDebtSecurities0.037.4

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



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value062112842660423148356765868497419678
Percentage of AvailableForSaleSecuritiesDebtSecurities0.034.860.764.566.766.666.569.068.664.9

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:ForeignGovernmentDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value20324199166538649759732
Percentage of AvailableForSaleSecuritiesDebtSecurities3.10.01.51.01.62.35.35.25.34.9

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:USGovernmentAgenciesDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value02093015087357311265139615851767
Percentage of AvailableForSaleSecuritiesDebtSecurities0.011.714.212.311.610.112.411.111.211.9

us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument

us-gaap:FairValueMeasurementsRecurring, us-gaap:AssetBackedSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value0227437788106912531271139415171476
Percentage of AvailableForSaleSecuritiesDebtSecurities0.012.720.719.116.917.312.511.110.79.9

us-gaap:FairValueMeasurementsRecurring, us-gaap:CommercialPaper



Period End2020-03-312019-12-31
Value0668
Percentage of AvailableForSaleSecuritiesDebtSecurities0.037.4

us-gaap:FairValueMeasurementsRecurring, us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value062112842660423148356765868497419678
Percentage of AvailableForSaleSecuritiesDebtSecurities0.034.860.764.566.766.666.569.068.664.9

us-gaap:FairValueMeasurementsRecurring, us-gaap:ForeignGovernmentDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value20324199166538649759732
Percentage of AvailableForSaleSecuritiesDebtSecurities3.10.01.51.01.62.35.35.25.34.9

us-gaap:FairValueMeasurementsRecurring, us-gaap:USGovernmentAgenciesDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value02093015087357311265139615851835
Percentage of AvailableForSaleSecuritiesDebtSecurities0.011.714.212.311.610.112.411.111.212.3

us-gaap:FinancialInstrument

us-gaap:AssetBackedSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value0227437792109412751288144115691542
Percentage of AvailableForSaleSecuritiesDebtSecurities0.012.720.719.217.217.612.711.411.010.3

us-gaap:CommercialPaper



Period End2020-03-312019-12-312018-12-31
Value06680
Percentage of AvailableForSaleSecuritiesDebtSecurities0.037.40.0

us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value062112842700431049206866878298609806
Percentage of AvailableForSaleSecuritiesDebtSecurities0.034.860.765.567.967.867.569.869.465.8

us-gaap:ForeignGovernmentDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value20324199166538649759733
Percentage of AvailableForSaleSecuritiesDebtSecurities3.10.01.51.01.62.35.35.25.34.9

us-gaap:USGovernmentAgenciesDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value622693625858328921431162018102042
Percentage of AvailableForSaleSecuritiesDebtSecurities96.915.117.114.213.112.314.112.912.713.7

us-gaap:BusinessCombinationContingentConsiderationLiability



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value69476775575366778885283091993594510029258918946616525906145775624287573716949
Percentage of BusinessCombinationContingentConsiderationLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyType

mrk:SanofiPasteur



Period End2020-03-312019-12-312018-12-31
Value520625614
Percentage of BusinessCombinationContingentConsiderationLiability74.981.577.9

us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value694767755753667788852830919935945100292589189466165259061457756242869
Percentage of BusinessCombinationContingentConsiderationLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value694767755753667788852830919935945100292589189466165259061457756242869
Percentage of BusinessCombinationContingentConsiderationLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessAcquisition, us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIndefiniteLivedIntangibleAssets

mrk:ArQule, mrk:IPRDMK1026



Period End2020-01-16
Value2280
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIndefiniteLivedIntangibleAssets100.0

mrk:ArQule, mrk:IPRDMK7075



Period End2020-01-16
Value170
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIndefiniteLivedIntangibleAssets7.5

us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:CashEquivalentsAtCarryingValue

us-gaap:FairValueInputsLevel2



Period End2020-03-312019-12-31
Value68008900
Percentage of CashEquivalentsAtCarryingValue100.0100.0

us-gaap:DebtInstrument

us-gaap:DebtInstrumentFaceAmount

mrk:A1.85NotesDue2020



Period End2020-02-29
Value1250
Percentage of DebtInstrumentFaceAmount100.0

us-gaap:DebtInstrumentFairValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value3060028800287002860027100256002400023900243002560028300260002930025700270002620027200270002720026900316002250029000242002890025500273002900022800228002210021200200001950019700188001830018700195001900017700
Percentage of DebtInstrumentFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtLongtermAndShorttermCombinedAmount



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value2800026300261002660025100
Percentage of DebtLongtermAndShorttermCombinedAmount100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxLiabilitiesNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value19431470196020891835170220652159220622195077
Percentage of DeferredIncomeTaxLiabilitiesNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxesAndOtherAssetsCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value4714427738273382323345003761400541124299379033544069438937653928387751404941513351175257474036593939478952774352448445093429378837133694415836873651
Percentage of DeferredIncomeTaxesAndOtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxesAndOtherAssetsNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value7052677190049155870775547500714565586075588459285872585464436559592161445618584355965133658971438831911570107112689167236135615659135735556955345626
Percentage of DeferredIncomeTaxesAndOtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeAssetFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection



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
Value40517027720019222619820263376143263335271270372316390340
Percentage of DerivativeAssetFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeAssetNotOffsetPolicyElectionDeduction



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
Value89847369155121135152103941371321441315047112593197
Percentage of DerivativeAssetNotOffsetPolicyElectionDeduction100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeAssets



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
Value710288483301384454387444109130221340629995620912979123714751847
Percentage of DerivativeAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation

us-gaap:OtherAssets, us-gaap:ForeignExchangeContract, us-gaap:DesignatedAsHedgingInstrument



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
Value8855564984758583303846315612996169252386491691
Percentage of DerivativeAssets12.419.111.616.321.916.522.018.727.529.220.89.18.913.015.518.525.731.233.337.4

us-gaap:OtherAssets, us-gaap:InterestRateContract, us-gaap:DesignatedAsHedgingInstrument



Period End2020-03-312019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value7015221400002152111201582171694210119
Percentage of DerivativeAssets9.95.24.64.70.00.00.00.01.56.86.21.72.025.523.817.33.46.81.0

us-gaap:OtherCurrentAssets, us-gaap:ForeignExchangeContract, us-gaap:DesignatedAsHedgingInstrument



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
Value194152252168202263175153215183154330616274346436579710772
Percentage of DerivativeAssets27.352.852.255.852.657.945.234.519.339.237.645.352.561.944.237.944.546.848.141.8

us-gaap:OtherCurrentAssets, us-gaap:ForeignExchangeContract, us-gaap:Nondesignated



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
Value34766153709811612720858397713423223092180104212154365
Percentage of DerivativeAssets48.922.931.723.325.525.632.846.853.230.034.839.436.923.114.819.710.617.110.419.8

us-gaap:OtherCurrentAssets, us-gaap:InterestRateContract, us-gaap:DesignatedAsHedgingInstrument



Period End2020-03-312019-12-312015-09-302014-12-31
Value11010
Percentage of DerivativeAssets1.50.00.10.0

us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:ForeignExchangeContract, us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value4551692591291942412333026348871392643316314775154212576
Percentage of DerivativeAssets64.158.753.642.950.553.160.268.057.836.939.440.942.033.310.216.17.712.414.431.2

us-gaap:ForeignExchangeOption, us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value1741042021581902131541424680119180354644399548735104111611252
Percentage of DerivativeAssets24.536.141.852.549.546.939.832.042.261.553.852.956.364.764.460.175.184.278.767.8

us-gaap:InterestRateSwap, us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value811522140
Percentage of DerivativeAssets11.45.24.64.70.0

us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementFrequency

us-gaap:ForeignExchangeContract, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value4551692591291942412333026348871392643316314775154212576
Percentage of DerivativeAssets64.158.753.642.950.553.160.268.057.836.939.440.942.033.310.216.17.712.414.431.2

us-gaap:ForeignExchangeOption, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value1741042021581902131541424680119180354644399548735104111611252
Percentage of DerivativeAssets24.536.141.852.549.546.939.832.042.261.553.852.956.364.764.460.175.184.278.767.8

us-gaap:InterestRateSwap, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value811522140
Percentage of DerivativeAssets11.45.24.64.70.0

us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value710288483301384454387444109130221340629995620912979123714751847
Percentage of DerivativeAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value710288483301384454387444109130221340629995620912979123714751847
Percentage of DerivativeAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:HedgingDesignation

us-gaap:DesignatedAsHedgingInstrument



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
Value3632223302312863382602365191144206397765528732857100713031482
Percentage of DerivativeAssets51.177.168.376.774.574.467.253.246.870.065.260.663.176.985.280.387.581.488.380.2

us-gaap:Nondesignated



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
Value34766153709811612720858397713423223092180122230172365
Percentage of DerivativeAssets48.922.931.723.325.525.632.846.853.230.034.839.436.923.114.819.712.518.611.719.8

us-gaap:DerivativeCollateralObligationToReturnCash



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value2163413332371075490038652225292995954958621054121415941410942427478652566855841305313539327
Percentage of DerivativeCollateralObligationToReturnCash100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeLiabilities



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
Value93971108419516020419732421722720114613457711646356103
Percentage of DerivativeLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation

us-gaap:AccruedLiabilities, us-gaap:ForeignExchangeContract, us-gaap:DesignatedAsHedgingInstrument



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
Value7226138758119718858211201011110
Percentage of DerivativeLiabilities7.522.75.515.54.14.42.54.136.732.738.828.914.40.735.114.16.71.61.80.0

us-gaap:AccruedLiabilities, us-gaap:ForeignExchangeContract, us-gaap:Nondesignated



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
Value8573100631387158568990112120891033559151375588
Percentage of DerivativeLiabilities91.475.390.975.070.844.428.428.427.541.549.359.761.076.961.483.192.158.798.285.4

us-gaap:AccruedLiabilities, us-gaap:InterestRateContract, us-gaap:DesignatedAsHedgingInstrument



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312016-09-302016-06-302016-03-312015-12-31
Value013612022133400011
Percentage of DerivativeLiabilities0.01.02.77.16.20.01.01.00.31.41.32.00.00.00.00.61.6

us-gaap:OtherNoncurrentLiabilities, us-gaap:ForeignExchangeContract, us-gaap:DesignatedAsHedgingInstrument



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-06-302015-12-31
Value1000000.01000000.01000000.00.01000000.01000000.01000000.01000000.01000000.01000000.01000000.00.01000000.01000000.01000000.00.0
Percentage of DerivativeLiabilities1.11.00.90.00.50.60.50.50.30.50.40.00.70.71.40.0

us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:ForeignExchangeContract, us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value909510573144746062208162201178110935570162385646
Percentage of DerivativeLiabilities96.897.995.586.973.846.229.431.564.274.788.588.675.369.496.598.698.860.3100.044.7

us-gaap:ForeignExchangeOption, us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value3123354310001121111042
Percentage of DerivativeLiabilities3.21.01.83.61.53.12.01.50.30.00.00.00.79.01.81.40.61.60.040.8

us-gaap:InterestRateContract, us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value01384881140132115552623352910124015
Percentage of DerivativeLiabilities0.01.02.79.524.650.668.667.035.525.311.511.424.021.61.80.00.638.10.014.6

us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementFrequency

us-gaap:ForeignExchangeContract, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value909510573144746062208162201178110935570162385646
Percentage of DerivativeLiabilities96.897.995.586.973.846.229.431.564.274.788.588.675.369.496.598.698.860.3100.044.7

us-gaap:ForeignExchangeOption, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value3123354310001121111042
Percentage of DerivativeLiabilities3.21.01.83.61.53.12.01.50.30.00.00.00.79.01.81.40.61.60.040.8

us-gaap:InterestRateContract, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value01384881140132115552623352910124015
Percentage of DerivativeLiabilities0.01.02.79.524.650.668.667.035.525.311.511.424.021.61.80.00.638.10.014.6

us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value93971108419516020419732421722720114613457711646356103
Percentage of DerivativeLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value93971108419516020419732421722720114613457711646356103
Percentage of DerivativeLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:HedgingDesignation

us-gaap:DesignatedAsHedgingInstrument



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
Value8241021578914614123512711581573121111225115
Percentage of DerivativeLiabilities8.624.79.125.029.255.671.671.672.558.550.740.339.023.136.815.57.339.71.814.6

us-gaap:Nondesignated



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
Value8573100631387158568990112120891033660152385588
Percentage of DerivativeLiabilities91.475.390.975.070.844.428.428.427.541.549.359.761.076.963.284.592.760.398.285.4

us-gaap:DerivativeLiabilityFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection



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
Value413371540396945221123906923724514256
Percentage of DerivativeLiabilityFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeLiabilityNotOffsetPolicyElectionDeduction



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
Value89847369155121135152103941371321441315047113593197
Percentage of DerivativeLiabilityNotOffsetPolicyElectionDeduction100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeNotionalAmount



Period End2020-03-312019-12-312019-09-302018-12-31
Value27453306662835929742
Percentage of DerivativeNotionalAmount100.0100.0100.0100.0

us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation

us-gaap:AccruedLiabilities, us-gaap:ForeignExchangeContract, us-gaap:DesignatedAsHedgingInstrument



Period End2020-03-312019-12-312019-09-302018-12-31
Value7341748775774
Percentage of DerivativeNotionalAmount2.75.72.72.6

us-gaap:AccruedLiabilities, us-gaap:ForeignExchangeContract, us-gaap:Nondesignated



Period End2020-03-312019-12-312019-09-302018-12-31
Value4665869369069922
Percentage of DerivativeNotionalAmount17.028.324.433.4

us-gaap:AccruedLiabilities, us-gaap:InterestRateContract, us-gaap:DesignatedAsHedgingInstrument



Period End2020-03-312019-12-312019-09-302018-12-31
Value0125012500
Percentage of DerivativeNotionalAmount0.04.14.40.0

us-gaap:OtherAssets, us-gaap:ForeignExchangeContract, us-gaap:DesignatedAsHedgingInstrument



Period End2020-03-312019-12-312019-09-302018-12-31
Value2064216020732655
Percentage of DerivativeNotionalAmount7.57.07.38.9

us-gaap:OtherAssets, us-gaap:InterestRateContract, us-gaap:DesignatedAsHedgingInstrument



Period End2020-03-312019-12-312019-09-302018-12-31
Value2250340034000
Percentage of DerivativeNotionalAmount8.211.112.00.0

us-gaap:OtherCurrentAssets, us-gaap:ForeignExchangeContract, us-gaap:DesignatedAsHedgingInstrument



Period End2020-03-312019-12-312019-09-302018-12-31
Value6546611771446222
Percentage of DerivativeNotionalAmount23.819.925.220.9

us-gaap:OtherCurrentAssets, us-gaap:ForeignExchangeContract, us-gaap:Nondesignated



Period End2020-03-312019-12-312019-09-302018-12-31
Value10039724568025430
Percentage of DerivativeNotionalAmount36.623.624.018.3

us-gaap:OtherCurrentAssets, us-gaap:InterestRateContract, us-gaap:DesignatedAsHedgingInstrument



Period End2020-03-312019-12-31
Value11500
Percentage of DerivativeNotionalAmount4.20.0

us-gaap:OtherNoncurrentLiabilities, us-gaap:ForeignExchangeContract, us-gaap:DesignatedAsHedgingInstrument



Period End2020-03-312019-12-312019-09-302018-12-31
Value553989
Percentage of DerivativeNotionalAmount0.00.20.00.3

us-gaap:DerivativeInstrumentRisk

us-gaap:InterestRateSwap



Period End2020-02-29
Value250
Percentage of DerivativeNotionalAmount0.0

us-gaap:HedgingDesignation

us-gaap:DesignatedAsHedgingInstrument



Period End2020-03-312019-12-312019-09-302018-12-31
Value12749147281465114390
Percentage of DerivativeNotionalAmount46.448.051.748.4

us-gaap:Nondesignated



Period End2020-03-312019-12-312019-09-302018-12-31
Value14704159381370815352
Percentage of DerivativeNotionalAmount53.652.048.351.6

us-gaap:EquitySecuritiesFvNi



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value779838691756636456378375
Percentage of EquitySecuritiesFvNi100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring, us-gaap:EquitySecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value560518206228209147196164104
Percentage of EquitySecuritiesFvNi71.961.829.830.232.932.251.943.70.0

us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument

us-gaap:FairValueMeasurementsRecurring, us-gaap:EquitySecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value560518206228209147196164104
Percentage of EquitySecuritiesFvNi71.961.829.830.232.932.251.943.70.0

us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueAmount



Period End2020-03-312019-12-312019-03-312018-12-31
Value450420542568
Percentage of EquitySecuritiesWithoutReadilyDeterminableFairValueAmount100.0100.0100.0100.0

us-gaap:BalanceSheetLocation

us-gaap:HedgedLiabilityFairValueHedge

mrk:LongTermDebtCurrentMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value116012491247124412370553554983
Percentage of HedgedLiabilityFairValueHedge100.0100.0100.0100.0100.00.0100.0100.0100.0

mrk:LongTermDebtExcludingCurrentMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value231534093416340633574560450345115146
Percentage of HedgedLiabilityFairValueHedge199.6272.9273.9273.8271.40.0814.3814.3523.5

us-gaap:BalanceSheetLocation

us-gaap:HedgedLiabilityFairValueHedgeCumulativeIncreaseDecrease

mrk:LongTermDebtCurrentMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value11-1-3-6-12035-17
Percentage of HedgedLiabilityFairValueHedgeCumulativeIncreaseDecrease100.0100.0100.0100.0100.00.0100.0100.0100.0

mrk:LongTermDebtExcludingCurrentMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value69142211-37-82-138-129-41
Percentage of HedgedLiabilityFairValueHedgeCumulativeIncreaseDecrease627.3-1400.0-733.3-183.3308.30.0-4600.0-2580.0241.2

us-gaap:InventoryGross



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value76147629743773407116685667206528649362386150622559615681602860865985588562916684678369267373759077537857816382328171808981877778784676767733777474917248770874989381
Percentage of InventoryGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InventoryNoncurrent



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
Value163014801515146413981417129413611136118710291076109011171104110012001500150016001500160017001400130015001300140013001400130013001300130013001408126411941242109413121157587
Percentage of InventoryNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PublicUtilitiesInventory

mrk:InventoriesProducedinPreparationforProductLaunches



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302015-12-31
Value2581681381188573251880728080805663
Percentage of InventoryNoncurrent15.811.49.18.16.10.50.21.81.66.77.07.47.37.25.14.2

mrk:InventoryNotExpectedtobeSoldWithinOneYear



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302015-12-31
Value140013001400130013001400130013001100110095710001000100010001500
Percentage of InventoryNoncurrent85.987.892.488.893.098.8100.595.596.892.793.092.991.789.590.6100.0

us-gaap:InventoryWorkInProcessAndRawMaterials



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value56295650552653885217500449334818476447034588465444464222443244804399437445865005490351415350524958895894617157835876592159715705575753965800603658015449544053106583
Percentage of InventoryWorkInProcessAndRawMaterials100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:LiabilitiesFairValueDisclosure

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312016-12-312015-12-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value93971108419516020419721713463103948710618411998145229180482181081446861
Percentage of LiabilitiesFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312016-12-312015-12-312014-12-312014-09-302014-06-302014-03-312013-12-312011-12-312011-09-302011-06-302010-12-31
Value69476775575366778885283093589159042800000000
Percentage of LiabilitiesFairValueDisclosure746.2790.7686.4896.4342.1492.5417.6421.3430.9664.9936.5415.50.00.00.00.00.00.00.00.0

us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312016-12-312015-12-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value7878648658378629481056102711521025653531948710618411998145229180482181081446861
Percentage of LiabilitiesFairValueDisclosure846.2890.7786.4996.4442.1592.5517.6521.3530.9764.91036.5515.5100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ValuationAllowancesAndReservesType

us-gaap:LitigationReserve

mrk:LegalDefenseCosts



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value255240260260250245150155155160170175175185200235250245255230240215180190190160190210230260240
Percentage of LitigationReserve100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:MarketableSecuritiesCurrent



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
Value777414944672289924592284286324063294418135417826516052263227490345414448762182782977365246851865407930082998269075769891014411323163913341301750127715412931118
Percentage of MarketableSecuritiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:MarketableSecuritiesNoncurrent



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
Value55514692111377956216233760610033110331212512206121381189611416116571187912554130391308013333130921351513492126181145697709198855579487305556040853972345824232175208421752137204519954326491
Percentage of MarketableSecuritiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentRisk

us-gaap:NumberOfInterestRateDerivativesHeld

us-gaap:InterestRateSwap



Period End2020-03-312020-02-29
Value14.05.0
Percentage of NumberOfInterestRateDerivativesHeld100.0100.0

us-gaap:DerivativeInstrumentRisk, us-gaap:LongtermDebtType

us-gaap:InterestRateSwap, mrk:A2.40NotesDue2022



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
Value4.04.04.04.04.04.04.04.04.04.04.04.04.04.04.04.04.04.04.04.01.0
Percentage of NumberOfInterestRateDerivativesHeld28.60.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OtherInventorySupplies



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value232207213202201194202191199201198175160155175169169168177182182197212216222225235235240244264265310297293298306315323308322
Percentage of OtherInventorySupplies100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedCashAndCashEquivalents



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value3525821122234
Percentage of RestrictedCashAndCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestructuringAndRelatedCostExpectedCost1



Period End2020-03-312019-12-312019-09-30
Value25002500750
Percentage of RestructuringAndRelatedCostExpectedCost1100.0100.0100.0

us-gaap:StatementScenario

srt:ScenarioForecast



Period End2020-12-312019-12-31
Value800500
Percentage of RestructuringAndRelatedCostExpectedCost10.020.0

us-gaap:RestructuringReserve



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
Value6267596675435835345735906517475965605135415795585616451051
Percentage of RestructuringReserve100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestructuringCostAndReserve

us-gaap:OneTimeTerminationBenefits



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
Value5696906034705024434764855356194734303763955135185105921031
Percentage of RestructuringReserve90.990.990.486.686.183.083.182.282.282.979.476.873.373.088.692.890.991.898.1

us-gaap:OtherRestructuring



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
Value576964738191971051161281231301371466640515320
Percentage of RestructuringReserve9.19.19.613.413.917.016.917.817.817.120.623.226.727.011.47.29.18.21.9

us-gaap:StockholdersEquityBeforeTreasuryStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value83366818578176381205792757763078588779307770978130803678151680994806348346182734829318321083014826738366883909791197990979720793567677276834781587773779609791627866478309785557791276809
Percentage of StockholdersEquityBeforeTreasuryStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302008-12-312007-12-312006-12-31
Value2630026001269252773727670268823265632766339013456938499397124008840308439574344643901447674567946638479174879145360485165256452326500065010555606554635821257673573145694357596579225683956805580485766560343614922534922736211672059119965
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312013-12-312010-09-302010-06-302009-12-312009-09-302009-06-302008-12-31
Value-4201-4261-3515-3530-3541-3556-3025-3065-3095-2787-3120-3133-3180-3206-2687-2543-2435-2407-2986-909-2327-2348-2469-2624-2709-2754
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-16.0-16.4-13.1-12.7-12.8-13.2-9.3-9.4-9.1-8.1-8.1-7.9-7.9-8.0-6.1-5.9-5.5-5.4-6.1-1.7-4.0-4.1-4.0-10.4-11.9-13.0

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent



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
Value13531157661181669265-201-108-103-37106338404
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.50.10.60.20.40.60.30.2-0.6-0.3-0.3-0.10.30.80.9

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312013-12-312010-09-302010-06-302009-12-312009-09-302009-06-302008-12-31
Value01831484-78-124-164-167-612107540-313716710441111545029334811563
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.00.10.10.20.0-0.3-0.4-0.5-0.5-0.20.50.20.1-0.00.30.40.20.10.20.10.10.10.10.20.50.3

us-gaap:AccumulatedOtherComprehensiveIncome



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302008-12-312007-12-312006-12-31
Value-6391-6193-5390-5362-5346-5545-5151-5122-5060-4910-4945-5094-5080-5226-4252-4086-4194-4148-4573-4332-4167-4323-2998-2444-2179-2197-4698-4760-4629-4682-3040-3126-3217-3132-2713-2776-3170-3216-3490-4658-3572-2766-2674-2549-2553-826-1164
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-24.3-23.8-20.0-19.3-19.3-20.6-15.8-15.6-14.9-14.2-12.8-12.8-12.7-13.0-9.7-9.4-9.6-9.3-10.0-9.3-8.7-8.9-6.6-5.0-4.1-4.2-9.4-9.5-8.3-8.4-5.2-5.4-5.6-5.5-4.7-4.8-5.6-5.7-6.0-8.1-5.9-4.5-10.6-11.2-12.1-4.0-5.8

us-gaap:AccumulatedTranslationAdjustment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312013-12-312010-09-302010-06-302009-12-312009-09-302009-06-302008-12-31
Value-2325-1981-2063-1946-1927-2077-2094-1958-1597-1954-1932-1999-2046-2355-1739-1821-2065-2186-1978-1474-1200-2477-28833925
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-8.8-7.6-7.7-7.0-7.0-7.7-6.4-6.0-4.7-5.7-5.0-5.0-5.1-5.8-4.0-4.2-4.7-4.9-4.1-2.8-2.1-4.3-0.50.00.20.1

us-gaap:AdditionalPaidInCapital



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-312006-12-31
Value396973966039561394843876838808397623974139874399023982339776398993993939897399114014540222401394011440355404234034040199404504050839909398914072740646404714055040652406634071740657406904070140557403384019739682831980147166
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest150.9152.5146.9142.4140.1144.4121.8121.3117.6115.4103.4100.299.599.190.891.991.489.887.986.084.282.888.982.977.077.479.879.673.273.369.570.370.971.470.770.271.671.769.970.066.664.539.338.935.9

us-gaap:CommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302008-12-312007-12-312006-12-31
Value1788178817881788178817881788178817881788178817881788178817881788178817881788178817881788178817881788178817881788178817881788178817881788178817881788178817881786178617812929292929
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest6.86.96.66.46.56.75.55.55.35.24.64.54.54.44.14.14.14.03.93.83.73.73.93.73.43.43.63.63.23.23.13.13.13.13.13.13.13.13.13.13.02.90.10.10.10.10.1

us-gaap:NoncontrollingInterest



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302008-12-312007-12-312006-12-31
Value9594871021311812342372332332512492512202138995919219015214413615825892561258726052577244324652479245424262456242624552429245524342457243424422412240824062406
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.40.40.30.40.50.70.70.70.70.70.70.60.60.50.50.20.20.20.20.40.30.30.30.34.94.95.25.24.64.44.24.34.34.34.34.24.34.34.24.24.14.09.610.611.411.712.1

us-gaap:RetainedEarnings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302008-12-312007-12-312006-12-31
Value4827246602458044529544065425794218941523411074135043701450464438744133460284512145192453484566045103456924602139989403663966139257397733991540272399854039039950394413899038763382433740037536392454008140511414044769345072436983914039095
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest183.5179.2170.1163.3159.3158.4129.2126.7121.3119.6113.5113.4110.7109.5104.7103.9102.9101.3100.096.795.494.388.283.275.575.079.579.772.472.169.469.368.868.567.366.065.866.167.669.567.167.3188.1198.2206.4190.1195.8

us-gaap:TreasuryStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302008-12-312007-12-312006-12-31
Value-57161-55950-54925-53570-51736-50929-46166-45401-44041-43794-42119-42053-41157-40546-39717-39377-39125-38534-37427-36225-35903-35262-33895-31551-29745-29591-29353-29334-25129-24717-23862-23968-23804-23792-23415-22416-22324-22433-22507-22315-21044-21044-30683-30694-30735-28174-27567
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-217.3-215.2-204.0-193.1-187.0-189.5-141.4-138.6-129.9-126.7-109.4-105.9-102.7-100.6-90.4-90.6-89.1-86.1-81.9-77.7-74.9-72.3-74.7-65.0-56.6-56.6-58.7-58.5-45.2-44.6-41.0-41.6-41.5-41.8-40.7-38.7-39.3-39.5-38.8-38.7-34.9-34.2-121.0-135.0-145.2-136.8-138.1

us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:TradingSecurities

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value560518206228209147196172
Percentage of TradingSecurities100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value217252054399761346985986914359
Percentage of TradingSecurities0.4333.0997.11753.12934.94751.75035.28348.3

us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value562224322604225634371321006514531
Percentage of TradingSecurities100.4433.01097.11853.13034.94851.75135.28448.3

us-gaap:TreasuryStockShares



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
Value1053103810261010994984918907884880850849836828815811807795774753748738716677647649650650559550532538534536525493491494497491454454875
Percentage of TreasuryStockShares100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Line plots across dimensions of each concept

us-gaap:CommonStockSharesIssued us-gaap:StatementEquityComponents


us-gaap:Revenues us-gaap:ConsolidationItems


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


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


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


us-gaap:Revenues us-gaap:StatementGeographical


us-gaap:Revenues us-gaap:CounterpartyName, us-gaap:IncomeStatementLocation, us-gaap:TypeOfArrangement


us-gaap:CostOfGoodsAndServicesSold us-gaap:CounterpartyName, us-gaap:IncomeStatementLocation, us-gaap:TypeOfArrangement


us-gaap:ResearchAndDevelopmentExpense us-gaap:CounterpartyName, us-gaap:IncomeStatementLocation, us-gaap:TypeOfArrangement


us-gaap:SellingGeneralAndAdministrativeExpense us-gaap:CounterpartyName, us-gaap:IncomeStatementLocation, us-gaap:TypeOfArrangement


us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest us-gaap:ConsolidationItems


us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments


us-gaap:ReceivablesNetCurrent us-gaap:CounterpartyName, us-gaap:BalanceSheetLocation, us-gaap:TypeOfArrangement


us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:ProductOrService, us-gaap:BalanceSheetLocation


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


us-gaap:OtherAssetsNoncurrent us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument


us-gaap:LiabilitiesCurrent us-gaap:CounterpartyName, us-gaap:BalanceSheetLocation, us-gaap:TypeOfArrangement