BWA


Line plots across dimensions of each concept
Tables

Table of contents



us-gaap:CommonStockValue

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

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

us-gaap:CostOfGoodsAndServicesSold

us-gaap:GrossProfit

us-gaap:ResearchAndDevelopmentExpense

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:OperatingIncomeLoss

us-gaap:InterestAndDebtExpense

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxesPaidNet

us-gaap:ProfitLoss

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest
us-gaap:StatementEquityComponents

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest
us-gaap:StatementEquityComponents

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

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity

us-gaap:AssetsCurrent

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:ReceivablesNetCurrent

us-gaap:InventoryNet

us-gaap:InventoryFinishedGoods

us-gaap:InventoryLIFOReserve

us-gaap:InventoryRawMaterialsAndSupplies

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:LongTermInvestments

us-gaap:Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:OtherAssetsNoncurrent

us-gaap:LiabilitiesCurrent

us-gaap:NotesPayableCurrent

us-gaap:LongTermDebtCurrent

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent

us-gaap:AccruedIncomeTaxesCurrent

us-gaap:LongTermDebt
us-gaap:DebtInstrument

us-gaap:LongTermDebtNoncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent

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:IncreaseDecreaseInOtherOperatingCapitalNet

us-gaap:IncreaseDecreaseInInventories

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquireInvestments

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:ProceedsFromIssuanceOfLongTermDebt

us-gaap:RepaymentsOfLongTermDebt

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:RepaymentsOfLongTermDebt
us-gaap:DebtInstrument
us-gaap:DebtInstrumentInterestRateStatedPercentage

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

us-gaap:ShareBasedCompensation

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

bwa:AdjustedEbit
us-gaap:StatementBusinessSegments

bwa:EffectiveIncomeTaxRateReconciliationRestructuringExpense

bwa:EquityInAffiliatesEarningsNetOfDividendsReceivedAndOther

bwa:GrossResearchAndDevelopmentExpenditures

bwa:Mergeracquisitionanddivestitureexpense

bwa:Netimpactduetostockawardsmodification

bwa:OtherComprehensiveIncomeLossAdjusmentsbeforeReclassificationAdjustmentsandTax

bwa:OtherComprehensiveIncomeLossBeforeReclassificationAdjustmentsTax

bwa:OtherComprehensiveIncomeLossReclassificationAdjustmentTax

bwa:OtherComprehensiveIncomeLossReclassificationAdjustmentsBeforeTax

bwa:ResearchAndDevelopmentContractPercentOfNetResearchAndDevelopmentMaximum

bwa:ResearchAndDevelopmentCustomerReimbursements

bwa:SegmentReportingCorporateAllocation

bwa:TaxReformAdjustmentstoProvisionforIncomeTaxes

us-gaap:AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities
us-gaap:AwardType, us-gaap:StatementEquityComponents
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions

us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:AwardType

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:AssetImpairmentCharges
us-gaap:StatementScenario, us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType
us-gaap:BusinessCombinationConsiderationTransferred1

us-gaap:CapitalExpendituresIncurredButNotYetPaid

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths
us-gaap:DerivativeInstrumentRisk

us-gaap:CommonStockDividendsPerShareDeclared

us-gaap:CostmethodInvestmentsOtherThanTemporaryImpairment
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:DeferredIncomeTaxExpenseBenefit
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets
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:DefinedBenefitPlanServiceCost
us-gaap:RetirementPlanType

us-gaap:DepreciationAndAmortization
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:IncomeStatementLocation
us-gaap:DerivativeGainLossOnDerivativeNet
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:OtherComprehensiveIncomeLocation
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:IncomeStatementLocation
us-gaap:DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:IncomeStatementLocation
us-gaap:DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet
us-gaap:DerivativeInstrumentRisk, bwa:ScheduleOfMaturityPeriod
us-gaap:DerivativeNonmonetaryNotionalAmountMass
us-gaap:StatementEquityComponents
us-gaap:DividendsCommonStockCash

us-gaap:EffectOfExchangeRateOnCashAndCashEquivalents

us-gaap:GainLossRelatedToLitigationSettlement

us-gaap:IncomeLossFromEquityMethodInvestments

us-gaap:IncomeTaxReconciliationOtherAdjustments

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInAccruedIncomeTaxesPayable

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:IncreaseDecreaseInReceivables

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:InterestCostsCapitalized

us-gaap:InterestPaidNet

us-gaap:InvestmentIncomeInterest

us-gaap:NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent

us-gaap:NumberOfReportableSegments

us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax

us-gaap:OtherComprehensiveIncomeForeignCurrencyTranslationGainLossArisingDuringPeriodTax

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsAndTax

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsAndTax

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansBeforeReclassificationAdjustmentsTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax

us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax

us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax

us-gaap:OtherNonrecurringIncomeExpense

us-gaap:OtherOperatingIncomeExpenseNet

us-gaap:PaymentsForProceedsFromHedgeInvestingActivities

us-gaap:PaymentsForProceedsFromOtherInvestingActivities
us-gaap:RestructuringCostAndReserve
us-gaap:PaymentsForRestructuring
us-gaap:RestructuringCostAndReserve, us-gaap:StatementBusinessSegments

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:PaymentsOfDividendsMinorityInterest

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired
us-gaap:BusinessAcquisition

us-gaap:PaymentsToAcquireProductiveAssets

us-gaap:ProceedsFromDivestitureOfBusinessesNetOfCashDivested

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProductWarrantyAccrualPayments

us-gaap:ProductWarrantyAccrualPreexistingIncreaseDecrease

us-gaap:ProductWarrantyAccrualWarrantiesIssued

us-gaap:RestructuringCharges
us-gaap:RestructuringCostAndReserve
us-gaap:RestructuringCostAndReserve, us-gaap:RestructuringPlan, us-gaap:StatementBusinessSegments
us-gaap:RestructuringCostAndReserve, us-gaap:StatementBusinessSegments
us-gaap:RestructuringPlan, us-gaap:StatementBusinessSegments

us-gaap:RestructuringCosts
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue

us-gaap:StandardAndExtendedProductWarrantyAccrualForeignCurrencyTranslationGainLoss
us-gaap:AwardType, us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures
us-gaap:AwardType, us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation

bwa:Accumulatedothercomprehensiveincomelosscumulativechangesinnetgainlossfromhedgesbeforetax
us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship

bwa:Debtdifferencebetweenfairvalueandcarryingvalue

bwa:PropertyPlantAndEquipmentNetOfAccumulatedDepreciationBeforeTooling

bwa:ToolingNetOfAmortization

us-gaap:AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax

us-gaap:AdditionalPaidInCapital
us-gaap:StatementScenario, us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType
us-gaap:BusinessAcquisitionPercentageOfVotingInterestsAcquired

us-gaap:ContractWithCustomerAssetNet
us-gaap:BalanceSheetLocation

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:ContractWithCustomerLiabilityNoncurrent
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:CostMethodInvestmentsFairValueDisclosure
us-gaap:DebtInstrument
us-gaap:DebtInstrumentFaceAmount

us-gaap:DebtInstrumentFairValue
us-gaap:Range
us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsCurrentFiscalYear
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeFairValueOfDerivativeAsset
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeFairValueOfDerivativeLiability
us-gaap:Currency, us-gaap:DerivativeInstrumentRisk, bwa:ScheduleOfMaturityPeriod
us-gaap:DerivativeNotionalAmount

us-gaap:FIFOInventoryAmount
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:ValuationTechnique
us-gaap:ForeignCurrencyContractAssetFairValueDisclosure
us-gaap:FairValueByMeasurementFrequency, us-gaap:ValuationTechnique
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:ValuationTechnique
us-gaap:ForeignCurrencyContractsLiabilityFairValueDisclosure
us-gaap:FairValueByMeasurementFrequency, us-gaap:ValuationTechnique
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:ValuationTechnique
us-gaap:InterestRateDerivativeAssetsAtFairValue
us-gaap:FairValueByMeasurementFrequency, us-gaap:ValuationTechnique

us-gaap:InventoryWorkInProcess

us-gaap:LiabilitiesOtherThanLongtermDebtNoncurrent

us-gaap:LineOfCreditFacilityCurrentBorrowingCapacity
us-gaap:CashAndCashEquivalents
us-gaap:DebtInstrument

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:ValuationTechnique
us-gaap:NetInvestmentHedgeDerivativeAssetsAtFairValue
us-gaap:FairValueByMeasurementFrequency, us-gaap:ValuationTechnique

us-gaap:ProductWarrantyAccrual

us-gaap:ProductWarrantyAccrualClassifiedCurrent

us-gaap:ProductWarrantyAccrualNoncurrent
us-gaap:RestructuringCostAndReserve
us-gaap:RestructuringReserve
us-gaap:RestructuringCostAndReserve, us-gaap:StatementBusinessSegments
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
us-gaap:DebtInstrument
us-gaap:ShortTermBorrowings

us-gaap:ShortTermDebtWeightedAverageInterestRate

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:StatementEquityComponents

Tables

  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:CommonStockValue █████▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▁▁▁▁▁▁▁▁▁▁▁▁33333222222222222222222222111111111111NANANA1NANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding 206NA206206207NA208209210NA211211212NA213216218NA225226227NA228229229NA115116116NA118121127NA127128130NA127129129NANANANA
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic 205NA205205206NA207208209NA209210211NA212215217NA224225225NA227227227NA113114115NA114112108NA108108110NA112115116NANANANA
us-gaap:EarningsPerShareBasic ▆▇▇▆▆▇▇▇▇▃▆▇▆▁▅▆▆▆▆▆▆▆▆▆▆▆██▇▇▆▇█▇▇█▇▇▇▆▆▅▅▄▄0.631.070.940.840.771.110.981.31.07-0.70.881.010.89-1.390.390.760.750.570.70.660.790.620.730.840.70.621.471.521.231.050.881.081.461.121.31.491.131.00.950.720.650.450.15-0.31-0.06
us-gaap:EarningsPerShareDiluted ▆▇▇▆▆▇▇█▇▃▆▇▇▁▅▆▆▆▆▆▆▆▆▆▆▆██▇▇▆▇▇▇▇█▇▇▆▆▆▅▅▄▄0.631.060.940.830.771.10.981.31.07-0.70.881.00.89-1.390.390.760.750.560.70.650.790.610.730.830.690.621.451.51.221.030.851.01.281.01.151.311.00.890.870.680.630.450.15-0.31-0.06
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:Revenues ▆▇▇▇▇▇▇██▇▇▇▇▆▆▆▆▆▅▅▅▅▅▆▆▅▅▅▅▄▄▅▅▄▄▅▄▄▃▃▃▂▂▁▁2279255924922551256625722478269427842586241623892407225922142329226821231884203119841991203221972084188518061893185117191695185619121773179118181730153314101421128611981027916819
 us-gaap:Revenues us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments srt:ReportableGeographicalComponents,bwa:Drivetrain▁▇▅▅▅▇▅▆█▆▃86010439929989821045976103410831022921NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments srt:ReportableGeographicalComponents,bwa:Engine▁▃▃▄▅▄▃▇█▅▃14191516150015531584152715011660170115631494NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:StatementBusinessSegments bwa:Drivetrain▁▇▅▅▅▇▅▆█▆▃86010429939989821045976103410831022921NANANANANA879734583626611615627708680NA604613601NA534593611NA538525486NA397408NANANANANA
 us-gaap:Revenues us-gaap:StatementBusinessSegments bwa:Engine▁▃▃▄▅▄▃▇█▃▃14341533151415691598154115151674171615251506NANANANANA139913631308141313801351141214971412NA121012881257NA116812691308NA125812971249NA10181017NANANANANA
 us-gaap:Revenues us-gaap:StatementBusinessSegments us-gaap:ConsolidatedEntities▁▅▄▅▅▅▄▇█▅▃22792559249225512566257224782694278425862416NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:StatementGeographical,us-gaap:StatementBusinessSegments srt:Asia,bwa:Drivetrain▁█▄▄▃▆▄▅▅▅▂242421324317303380307337337334276NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:StatementGeographical,us-gaap:StatementBusinessSegments srt:Asia,bwa:Engine▁▇▄▄▃▅▅▇▇█▆291415357356340382386430422447410NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:StatementGeographical,us-gaap:StatementBusinessSegments srt:Asia,us-gaap:ConsolidatedEntities▁█▄▄▄▆▅▆▆▇▅533836681673643762694767759782686NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:StatementGeographical,us-gaap:StatementBusinessSegments srt:Europe,bwa:Engine▂▂▂▄▆▃▁▆█▃▁711703716760801731690807846725693NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:StatementGeographical,us-gaap:StatementBusinessSegments srt:Europe,us-gaap:ConsolidatedEntities▁▁▂▃▅▂▁▆█▃▂902892919971102893189910551137973931NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:StatementGeographical,us-gaap:StatementBusinessSegments srt:NorthAmerica,bwa:Drivetrain▄▄▇█▆█▇▆▇▅▁423429456461445457451441448431398NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:StatementGeographical,us-gaap:StatementBusinessSegments srt:NorthAmerica,bwa:Engine▄▂▆▇█▄▅▅▇▁▁387368397407412386393392402363362NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:StatementGeographical,us-gaap:StatementBusinessSegments srt:NorthAmerica,us-gaap:ConsolidatedEntities▄▃▇█▇▆▆▆▇▃▁810797853868857844844833850795761NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:CostOfGoodsAndServicesSold ▁▅▄▅▅▅▄▆█▅▂▂▂1832201419682038204720301962211421922021189418761890NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:GrossProfit ▆▇▇▇▇▇▇███▇▇▇▇▆▇▆▆▅▆▆▆▆▆▆▅▅▅▅▅▅▅▅▅▅▅▅▄▄▄▃▃▂▂▁44754552451351954251557959156552251451750147149646444639842942941342447244540637939637434434338339535935035734230627327523821315111679
us-gaap:ResearchAndDevelopmentExpense ▇▄▆▇▆▆▇▇█▆▅▆▅▃▃▃▃▁▁▂▁▂▃▄▂1099410211310410310811211610410110496848885857675807578859082NA717271NA646667NA586461NA454642NANANANA
us-gaap:SellingGeneralAndAdministrativeExpense ▆▅▇▆▆▆▇▇█▇▆▆▆▆▅▅▄▄▂▃▃▃▄▄▃▃▃▂▃▂▂▂▃▂▂▃▃▂▂▁▁213205230212226225230236253239224215218217209202188178148167168169174181173167157155159156151153169146151157165148150137130NANANANA
us-gaap:OperatingIncomeLoss ▆█▆▇▆▆▇▇▇▆▆▇▇▁▆▆▆▆▆▆▆▆▆▇▆▆▆▆▆▆▆▆▆▆▆▆▆▆▅▅▅▅▅▄▄189478276285264265278312333209275299292-4581502692642002372422592122372802331872252431981701631932251911982281791571231171066727-495
us-gaap:InterestAndDebtExpense ▄▄▅▅▅▄▅▅▆▆▆▆▆▇███▆▅▆▃▃▃▃▂▂▂▂▃▁▁▄▅▆▆▇▆█▆▅▅▆▄▃▇12121514141314141616171818192221211715171010998788965121517182018221814141613919
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest ▆█▆▆▆▆▇▇▇▆▇▇▇▁▆▆▆▆▆▆▆▆▆▇▆▆▆▆▆▆▆▆▆186475273255262266282314331206274297285-464141259253196232237259214244285235193229246199175170194221NANANANANANANANANANANANA
us-gaap:IncomeTaxExpenseBenefit ▄▇▄▄▅▄▄▄▅█▅▄▅▁▄▅▅▄▄▅▄▄▄▅▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▃▃▃4923866739119663094338797686-1834884806166807267718568445666504864685758464940304262051-19-6
us-gaap:IncomeTaxesPaidNet ▃▇▄▁▅▃▆█▆▄▅▅▆▄█▄▆▄▄▁▃▄▄439559216849801058059677378541025984555225505252NA72NANANA94NANANA47NANANA48NANANA14NANANANA
us-gaap:ProfitLoss ▆▇▇▇▇█▇█▇▃▇▇▇▁▆▇▇▆▇▆▇▆▇▇▇▆▇▇▆▆▆▆▇▆▆▇▆▆▆▆▅▅▅▄▄137237207182171247215284236-132194221199-2819317517313516515718714717319916714917218014812610512616312714616712911511187815620-33-6
us-gaap:ComprehensiveIncomeNetOfTax ▆█▆▇▇▇▇▇█▄███▁▆▆█▆▆▇▅▅▅▇▇5527285177159179162134284-90245279237-44410611123386120225-54-47-14188156NA26317572NA16432214NA-9196209NA260-501NANANANA
us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest ▅▂▆▅▄▁▅▆▄█▄▄▃▄▄▅▄▄▅▄▄▅▅▄▅3-953-1-1426-215-10-4-2-21-1030031-21NA211NA-100NA4-1-1NA04-1NANANANA
 us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents us-gaap:NoncontrollingInterest3NA53-1-1436-2NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest ▆█▆▇▇▇▇▇█▅██▇▁▆▆▇▆▆▇▅▅▅▇▇6029493184171195171140298-40246279241-45110810923596116224-54-43-16190155NA26617474NA16332214NA-5195207NA260-460NANANANA
us-gaap:NetIncomeLoss ▆▇▇▇▇▇▇█▇▃▇▇▇▁▆▇▇▆▇▆▇▆▇▇▇▆▇▇▆▆▆▆▇▆▆▇▆▆▆▆▆▅▅▄▅129220194172160230203271225-146184212189-2938316416412515714817813916619015914116617414212110112015812214116212411110682765217-35-7
 us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings129NA194172160229204272225NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLossAttributableToNoncontrollingInterest ▄█▆▅▆█▆▆▆▇▅▅▅▆▅▆▅▅▄▅▄▄▃▅▄▄▃▃▃▃▃▃▃▃▃▃▃▂▃▃▃▂▂▂▁8171310111712121114991011911910898769886665455555434453220
 us-gaap:NetIncomeLossAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents us-gaap:NoncontrollingInterest▁█▅▃▃█▄▄▄81713101117121212NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:Assets ▇▇████▇▇█▇▇▇▆▆▆▆▆▆▄▄▄▄▄▄▄▃▃▃▂▂▂▂▂▂▂▂▂▁9502970210199102311010410095971697771003497879816928890838834900789888940884176877766752272287282745773576917696467056528640063466220628159586094622660075555NANANA4811NANANA
 us-gaap:Assets us-gaap:ConsolidationItems us-gaap:CorporateNonSegment▃▁█▆▃▅▂▁▁▂▅▅▅▆▂▁1227109116961545126214441136111410901150146014501400148712071099NA1122NANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Assets us-gaap:StatementBusinessSegments bwa:Drivetrain▇█▇███▇███▇▆▆▆▇▇▇▇▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁388740753865390640183919382139214025390337483408336032123566371637403685188018641817178317931828186317861826176217471652162816311673156215791614NA1230NANANA1104NANANA
 us-gaap:Assets us-gaap:StatementBusinessSegments bwa:Engine▆▆▇▇█▇▇▇█▇▇▆▅▅▅▅▅▄▄▄▄▄▄▄▄▂▂▂▁▁▁▁▂▁▂▂438845364638478048244730475747414919473246074429432241344233417242114018403240433947393639684091400235193514345133903299334333903495332934363566NA3277NANANA2812NANANA
 us-gaap:Assets us-gaap:StatementBusinessSegments us-gaap:OperatingSegments▇▇▇██▇▇██▇▇▆▆▅▆▆▆▆▃▃▃▂▃▃▃▂▂▂▁▁▁▁▁▁▁▂827586118503868688428650857986628944863683557838768373477799788879527703591259075765571957625920586653055340521351384951497250215169489150155181NA4508NANANA3916NANANA
us-gaap:LiabilitiesAndStockholdersEquity ▇▇████▇▇█▇▇▇▆▆▆▆▆▆▄▄▄▄▄▄▄▃▃▃▂▂▂▂▂▂▂▂▂▁9502970210199102311010410095971697771003497879816928890838834900789888940884176877766752272287282745773576917696467056528640063466220628159586094622660075555NANANA4811NANANA
us-gaap:StockholdersEquity ██▇▇▇▇▆▆▆▅▅▅▄▄▅▅▅▅▅▅▅▅▅▅▅▅▄▄▃▃▃▃▂▁▁▁▁▁47244706445743944274422540663960391037163825361234033218370936813693355337173686350436163730382836833560336731953106308230442873265823872405243023062258NANANA2185NANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:AssetsCurrent ▇▇█▇▇▇▆▆▇▆▆▅▅▄▅▅▅▅▆▆▆▄▄▅▄▄▄▃▃▂▃▂▂▁▂▂▁▁37413836398738493719380434903543369735433401319331072911328932063182313533013401332529702951303730212798290627362601247224932420241021372267230521532059NANANA1551NANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue ▆▆▇▅▃▅▂▂▃▄▃▃▂▃▄▃▃▄▇█▇▆▆▅▆▇▇▆▅▅▄▃▃▂▂▂▁▃▃▁▂▂901832916710494739361361409545414387358443518495392577103311071035797782771808939920817695715621481396359377372222449432187374357NANANA
us-gaap:ReceivablesNetCurrent ▅▆▆▇▇▇▇▇█▇▇▆▆▅▅▅▆▅▄▄▄▃▄▄▄▂▃▃▃▂▂▃▃▂▂▂▂▁17351921198320632065198720612131224720182046193919341689176418061861166515511573156414431466157115461248134713391318114712611327136911831237126912781023NANANA732NANANA
us-gaap:InventoryNet █▇▇▇▇▇▇▇▇▇▇▆▅▅▅▆▆▆▃▃▂▂▃▃▂▁▁▁▁▁▂▂▂▁▂▂▂▁847807810817807780810800800766773701656641687744756723523525506505531528516458454439449447475472480454482495490430NANANA314NANANA
us-gaap:InventoryFinishedGoods ▇▇▆▇▇▇▆▆▆▆▇▅▅▅▆▇██▂▂▂▂▃▂▂▂▁▁▁▂▂▂▂▂▂▂▂▁211207195198213198190187197183207171171174191212223222125130119115136128123116106112113117131128131124120120122111NANANA68NANANA
us-gaap:InventoryLIFOReserve ▂▄▂██▅▄▁▁▁▂▂▂▄▁▁▂▂▇█▇██▅▇▅▄▂▅▅██▇▄▇▂▂▁1415141818161513131314141415131314141718171818161716151416161818171517141413NANANA11NANANA
us-gaap:InventoryRawMaterialsAndSupplies █▇▇█▇▇▇▇▇▆▆▅▄▄▅▆▆▅▃▃▃▃▃▃▃▂▂▁▂▁▂▂▂▁▂▂▂▁536502515520496485512502489469454424387378397437439412327325321319322324317279284263271264276273272254283289282244NANANA187NANANA
us-gaap:PrepaidExpenseAndOtherAssetsCurrent ▇██▇█▇▅▅▄▄▄▄▄▃▄▄▄▄▃▄▃▃▃▃▂▂▂▁▁▁▂▂▂▁▂▂25827627825928025019218517114516716515713714716017216913714513913012111398839882776710110093829088NA79NANANANANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:PropertyPlantAndEquipmentGross ██▇██▇▇▇▇▇▆▆▅▄▅▄▄▄▂▂▂▂▂▃▂▂▁▁▃▃▃▂▂▂▂▂▂▁42594192406541814165415040494023413640453922378336493494352734963490332730273067296930433044310330382926285428603221324531293036297629032904297528972761NANANA2621NANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:LandAndBuilding▆▆▅▆▆▆▇▇█▇▆▅▄▄▄▄▅▄▂▃▃▄▄▄▃▃▂▁▂▂▁▁▁▁▁▂869860843870879871880892932899874838807781807806814779720772754784799786774753738687706717695691697687690714NA669NANANANANANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:MachineryAndEquipment██▇▇▇▇▆▆▇▆▆▅▅▄▄▄▄▃▁▁▁▂▂▂▂▁▁▁▃▄▃▃▂▂▂▂305629712894295928892851279627672816273426592562247223712383234023032154191019121863194019531997197018971848189322622282220121412084200620162091NA1961NANANANANANANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment █▆▆▇▆▆▆▅▆▅▅▄▄▃▃▃▃▂▁▂▂▂▂▃▃▂▂▃▇▇▇▆▅▅▅▅▅▄1657151314801519150014731433140614271391135112931236113711591148114810369871042104610761101114111341099108611701563156715341466138513431367139413691308NANANA1211NANANA
us-gaap:PropertyPlantAndEquipmentNet ██▇████▇██▇▇▆▆▆▆▆▆▄▄▄▄▄▄▃▃▃▂▂▂▂▂▂▂▁▂▁▁28392925281228912895290328272825292328632753266325532501251825022498244821852160204920932067208920271939187517961765178816981672169616641637168116231542NANANA1490NANANA
us-gaap:LongTermInvestments ▁▁██▇▆▆▆▆▅▆▅▅▅▅▅▄▄▃▃▃▃▄▄▃▃▃▃▂▂▂▂▂▂▂▂▁▁315318694690617592610610581547559528530502512508487460438437422403460469440405402392377382380363345345354336319307NANANA257NANANA
us-gaap:Goodwill ▇█▇████████▇▆▆▇▇▇▇▂▂▁▂▂▂▂▂▂▂▂▂▂▁▂▂▂▂▂▁18181842181818451848185318561858189018811882173417081702173017671774175711831184116812051210124312441197119011721170118111721161120011861203124012311113NANANA1061NANANA
us-gaap:IntangibleAssetsNetExcludingGoodwill ▁▂▂▃▃▃▄▄▅▆▇▄▄▄▆▇██383402404421433439450461485492509453455463494525539543NANANA151NANANA169NANANA206NANANA243NANANA168NANANA148NANANA
us-gaap:OtherAssetsNoncurrent ▂▁▃▄▅▃▃▃▂▂▇▇██▃▃▂▃▅▅▄▄▅▅▆▅▅▅▅▅▅▅▆▆▆▆▇▄406379484535592502481477455458710714729753462477458495578582556554591616623577590607614575601602628625631661678531NANANA450NANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:LiabilitiesCurrent ▆▇█▇▇▇▅▆▇▇▇▅▆▅█▇▇▇▂▃▂▆▆▆▄▂▃▃▂▂▂▂▄▄▄▄▂▁21242329252523132299239820992236243624252381210621512091244523992310235715391635160121682122217019101623167417161583160315681513188119051924193615321392NANANA1046NANANA
us-gaap:NotesPayableCurrent ▄▄▆▂▂▂▁▁▃▁▄▂▄▃▇▇▆▆▁▁▂██▇▅▃▃▄▃▃▃▃▃▃▂▂▃▂2862864191711641725070194843031412551755255154664417472107623605541338201253316229239231186184196157165176128NANANA69NANANA
us-gaap:LongTermDebtCurrent ▆▆█▄▄▄▁▁▁▁▁▁▁▁▄▄▄▄▁▁▁▁▁▁▁▁▁▁▁▁▁▁████▁▁252252386140140139142615201623191881631631608111822171666001451037738136736356NANANA5NANANA
us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent ▅▆▇▇▇▇▆▇▇█▆▆▅▅▅▅▅▅▂▃▃▃▃▄▃▂▂▂▂▁▁▁▁▁▂▂▂▁17931977204820892056214420092122216022702015190418411847176317901819186614361528148415301503162215621383137713591311128712761279129112971346136213181224NANANA977NANANA
us-gaap:AccruedIncomeTaxesCurrent ▄▆▅▅▅▅▁▁▄▄▆▅▅▆▅█▂▄▃▃▁▂▁▁▁▄▄▄▄▆▅▃▃▃▅▄▄▄456658535758912444063595468619324492835914137938434042725537282952453839NANANA0NANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:LongTermDebt ▆▆▇▇▇▇▇▇▇▇▇▇▇▇████▆▆▆▁▁▁▂▂▂▂▂▁▂▂▃▃▃▄▃▃191619262042206920632080210021052137211921122094206320632277228322952285174217431749738723720103410271018913972828871966122511321234128312651058NANANA778NANANA
 us-gaap:LongTermDebt us-gaap:DebtInstrument bwa:SeniorNotesFour▅▅▅▅▅▅▅▅▅▅▅▅▅▅▆█▁▁▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁251251251251251251251251251251251251251251252254247247248248248248248248248248248248248247247247247247247247NA247NANANANANANANA
 us-gaap:LongTermDebt us-gaap:DebtInstrument bwa:SeniorNotesOne▃▄▃▄▄▅▅▆█▇▆▅▂▁▄▃▄▂549558542565558570576580611595585566527520556549562536NANANANANANANANANANANANA00370368363358NA348NANANANANANANA
 us-gaap:LongTermDebt us-gaap:DebtInstrument bwa:SeniorNotesSeven█████████████████████▁4944944944944944944934934934934934934934934934934934934984984980NANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:DebtInstrument bwa:SeniorNotesSix█████████████████████▁4974974974974974974964964964964954954954954954954954954994994990NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LongTermDebtNoncurrent ▆▆▆▇▇▇████████████▆▆▆▁▁▁▃▃▃▂▂▂▂▂▂▁▂▂▄▃16641674165619291923194020852102213121032091207720402043208921192131212417341731173071670570410271021101891397182386695684875186791912591051NANANA773NANANA
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent ▂▂▁▁▂▂▁▁▂▂▂▂▂▂▂▂▂▂▂▂▂▃▂▂▂▂████▆▆▆▆▆▆▆▆302306273283292298269284300301301290292294293302313312306311315326295307313312507502503509449451457457435450447438NANANA473NANANA
us-gaap:MinorityInterest ██▇▆▆▆▅▄▅▆▄▃▃▄▃▃▃▃▃▂▂▃▃▂▁▃▃▂▂▂▂▂▂▂▂▃▁▁1401381211081111191039310510990797683807467777064587469645371676055636060626560674751NANANA37NANANA
us-gaap:OtherLiabilitiesNoncurrent ██▅▆▆▃▃▃▄▃▃▂▂▁▄▄▅▅▂▃▂▂▃▄▃▂▂▂▂▂▃▃▄▄▄▅▅▃548549444470459357351352389355339321306275387410423415318336313326358380368326328316309318357365373391402421413362NANANA295NANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:StockholdersEquity ██▇▇▇▇▆▆▆▅▅▅▄▄▅▅▅▅▅▅▅▅▅▅▅▅▄▄▃▃▃▃▂▁▁▁▁▁47244706445743944274422540663960391037163825361234033218370936813693355337173686350436163730382836833560336731953106308230442873265823872405243023062258NANANA2185NANANA
us-gaap:CommonStockValue █████▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▁▁▁▁▁▁▁▁▁▁▁▁33333222222222222222222222111111111111NANANA1NANANA
us-gaap:RetainedEarningsAccumulatedDeficit ███▇▇▇▇▆▆▆▆▆▅▅▆▆▅▅▅▅▅▄▄▄▄▄▃▃▃▃▂▂▂▂▂▁▁▁60365942575755985461533651274958472245314712455743744215453844824346421041133985386637173606346933083177306529272753261124902388226821101988184616841560NANANA1193NANANA
us-gaap:TreasuryStockValue ███████▇▇▇▇▇▇▇▆▆▆▅▄▄▄▄▃▃▃▃▃▃▂▂▂▃▃▃▂▂▂▁162316571653165316261584158115441486144514441430137713811352130011991158931861844832782722702727740674589569510811721707618618531349NANANA57NANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▁▂▁▂▂▂▃▃▄▄▃▃▂▂▃▃▃▃▃▃▂▄▆▇▇▇▇▆▆▆▇▆▇▆▇██▇-801-727-779-670-675-674-609-567-430-490-545-606-674-722-571-593-540-610-576-539-616-383-199-18-16-14-91-187-189-121-120-182-94-150-856531-53NANANA14NANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▄▃▅▆▁█▄▄▁█▃▅▁▆▄▅▁▆▃▄▁▄▃2631843574274057025127034556224338604422303273439715028632255220NA46NANANA16NANANA30NANANA-41NANANA64NANANANA
us-gaap:NetCashProvidedByUsedInInvestingActivities ███▇████▇▇▇██████▁███▇█-120-109-103-173-104-121-126-105-160-181-315-122-132-61-113-125-103-1331-132-143-151-164-139NA-231NANANA-73NANANA-92NANANA-267NANANA-48NANANANA
us-gaap:NetCashProvidedByUsedInFinancingActivities ▄▃▄▄▃▄▃▃▄▂▅▃▄▁▃▄▃█▄▄▇▄▄-62-172-30-65-153-60-107-212-3-256108-198-15-423-99-86-124497-82-94416-52-20NA56NANANA59NANANA97NANANA78NANANA21NANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▄▃▅▆▁█▄▄▁█▃▅▁▆▄▅▁▆▃▄▁▄▃2631843574274057025127034556224338604422303273439715028632255220NA46NANANA16NANANA30NANANA-41NANANA64NANANANA
us-gaap:NetIncomeLoss ▆▇▇▇▇▇▇█▇▃▇▇▇▁▆▇▇▆▇▆▇▆▇▇▇▆▇▇▆▆▆▆▇▆▆▇▆▆▆▆▆▅▅▄▅129220194172160230203271225-146184212189-2938316416412515714817813916619015914116617414212110112015812214116212411110682765217-35-7
 us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings129NA194172160229204272225NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ProfitLoss ▆▇▇▇▇█▇█▇▃▇▇▇▁▆▇▇▆▇▆▇▆▇▇▇▆▇▇▆▆▆▆▇▆▆▇▆▆▆▆▅▅▅▄▄137237207182171247215284236-132194221199-2819317517313516515718714717319916714917218014812610512616312714616712911511187815620-33-6
us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet ▂▂▃▃▂▃▄▃▂▃▅▅▂█▁▃▃▄▅▃▄█▄-4-31610-2121915-4143633-172-156824389237820NA31NANANA-10NANANA-3NANANA-2NANANA7NANANANA
us-gaap:IncreaseDecreaseInInventories █▂▅▄▆▁▅▆▅▄▆▅▄▂▆▃▅▄▃▄▆▂▆58-2016931-271834271339255-931-317831030-1132NA7NANANA18NANANA19NANANA33NANANA47NANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ███▇████▇▇▇██████▁███▇█-120-109-103-173-104-121-126-105-160-181-315-122-132-61-113-125-103-1331-132-143-151-164-139NA-231NANANA-73NANANA-92NANANA-267NANANA-48NANANANA
us-gaap:PaymentsToAcquireInvestments 0NA4471NA1NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▄▃▄▄▃▄▃▃▄▂▅▃▄▁▃▄▃█▄▄▇▄▄-62-172-30-65-153-60-107-212-3-256108-198-15-423-99-86-124497-82-94416-52-20NA56NANANA59NANANA97NANANA78NANANA21NANANANA
us-gaap:ProceedsFromIssuanceOfLongTermDebt ▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▅▁▁█▁▁13181519113807123000040054111310122210NA100NANANA161NANANA191NANANA206NANANA0NANANANA
us-gaap:RepaymentsOfLongTermDebt ▂▇▂▂▂▃▁▁▁▁▁▁▁█▁▁▁▁▁▁▁▁▁1415015132650041042661777087612382NA100NANANA15NANANA99NANANA3NANANA2NANANANA
us-gaap:PaymentsForRepurchaseOfCommonStock ▁▁▁▂▃▁▂▃▃▁▁▃▂▂▃▄▄█▃▂▂▃▃0003367039555501553313866104792196729334965NA0NANANA49NANANA0NANANA181NANANA0NANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:RepaymentsOfLongTermDebt ▂▇▂▂▂▃▁▁▁▁▁▁▁█▁▁▁▁▁▁▁▁▁1415015132650041042661777087612382NA100NANANA15NANANA99NANANA3NANANA2NANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument bwa:SeniorNotesOne▄▄▄▄▄▄▄▄▄▄▄▄▄0.0180.0180.0180.0180.0180.0180.0180.0180.0180.0180.0180.0180.018NA0.0180.0180.018NANANANANANANANANANANANANA0.0350.0350.035NA0.0350.035NANANANANANANANANA

Common Stock Value

us-gaap:CommonStockValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value333332222222222222222222221111111111111
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Par Or Stated Value Per Share

Shares Issued

Common Stock Shares Issued

Common Stock Shares Outstanding

Common Stock Shares Authorized

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value206206206207208209210211211212213216218225226227228229229115116116118121127127128130127129129
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value205205205206207208209209210211212215217224225225227227227113114115114112108108108110112115116
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value0.631.070.940.840.771.110.981.31.07-0.70.881.010.89-1.390.390.760.750.570.70.660.790.620.730.840.70.621.471.521.231.050.881.081.461.121.31.491.131.00.950.720.650.450.15-0.31-0.06
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value0.631.060.940.830.771.10.981.31.07-0.70.881.00.89-1.390.390.760.750.560.70.650.790.610.730.830.690.621.451.51.221.030.851.01.281.01.151.311.00.890.870.680.630.450.15-0.31-0.06
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Revenues

us-gaap:Revenues



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value2279255924922551256625722478269427842586241623892407225922142329226821231884203119841991203221972084188518061893185117191695185619121773179118181730153314101421128611981027916819
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidationItems

us-gaap:IntersegmentElimination



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value-15-15-16-14-14-14-15-12
Percentage of Revenues-0.7-0.6-0.6-0.5-0.6-0.5-0.5-0.5
Percentage of Revenues-0.7-0.6-0.6-0.5-0.6-0.5-0.5-0.5
Percentage of Revenues us-gaap:IntersegmentElimination100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

srt:ReportableGeographicalComponents, bwa:Drivetrain



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value86010439929989821045976103410831022921
Percentage of Revenues37.740.839.839.138.340.639.438.438.939.538.1
Percentage of Revenues37.740.839.839.138.340.639.438.438.939.538.1
Percentage of Revenues srt:ReportableGeographicalComponents bwa:Drivetrain100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:ReportableGeographicalComponents, bwa:Engine



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value14191516150015531584152715011660170115631494
Percentage of Revenues62.359.260.260.961.759.460.661.661.160.561.9
Percentage of Revenues62.359.260.260.961.759.460.661.661.160.561.9
Percentage of Revenues srt:ReportableGeographicalComponents bwa:Engine100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementBusinessSegments

bwa:Drivetrain



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value86010429939989821045976103410831022921879734583626611615627708680604613601534593611538525486397408
Percentage of Revenues37.740.739.839.138.340.639.438.438.939.538.238.834.631.030.930.830.930.932.332.733.432.432.531.532.032.030.128.928.128.128.7
Percentage of Revenues37.740.739.839.138.340.639.438.438.939.538.238.834.631.030.930.830.930.932.332.733.432.432.531.532.032.030.128.928.128.128.7
Percentage of Revenues bwa:Drivetrain100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwa:Engine



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value1434153315141569159815411515167417161525150613991363130814131380135114121497141212101288125711681269130812581297124910181017
Percentage of Revenues62.959.960.861.562.359.961.262.161.659.062.361.764.269.569.569.667.969.568.267.867.068.067.968.968.468.470.271.472.272.271.6
Percentage of Revenues62.959.960.861.562.359.961.262.161.659.062.361.764.269.569.569.667.969.568.267.867.068.067.968.968.468.470.271.472.272.271.6
Percentage of Revenues bwa:Engine100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidatedEntities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value22792559249225512566257224782694278425862416
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues us-gaap:ConsolidatedEntities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementGeographical, us-gaap:StatementBusinessSegments

bwa:OtherForeign, bwa:Drivetrain



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value44997788788
Percentage of Revenues0.20.20.40.40.30.30.30.30.30.30.3
Percentage of Revenues0.20.20.40.40.30.30.30.30.30.30.3
Percentage of Revenues bwa:OtherForeign bwa:Drivetrain100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwa:OtherForeign, bwa:Engine



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value3030303031263231312728
Percentage of Revenues1.31.21.21.21.21.01.31.21.11.01.2
Percentage of Revenues1.31.21.21.21.21.01.31.21.11.01.2
Percentage of Revenues bwa:OtherForeign bwa:Engine100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwa:OtherForeign, us-gaap:ConsolidatedEntities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value3434393938344039383536
Percentage of Revenues1.51.31.61.51.51.41.61.41.41.41.5
Percentage of Revenues1.51.31.61.51.51.41.61.41.41.41.5
Percentage of Revenues bwa:OtherForeign us-gaap:ConsolidatedEntities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:Asia, bwa:Drivetrain



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value242421324317303380307337337334276
Percentage of Revenues10.616.513.012.411.814.812.412.512.112.911.4
Percentage of Revenues10.616.513.012.411.814.812.412.512.112.911.4
Percentage of Revenues srt:Asia bwa:Drivetrain100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:Asia, bwa:Engine



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value291415357356340382386430422447410
Percentage of Revenues12.816.214.314.013.314.915.616.015.217.317.0
Percentage of Revenues12.816.214.314.013.314.915.616.015.217.317.0
Percentage of Revenues srt:Asia bwa:Engine100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:Asia, us-gaap:ConsolidatedEntities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value533836681673643762694767759782686
Percentage of Revenues23.432.727.326.425.129.628.028.527.330.228.4
Percentage of Revenues23.432.727.326.425.129.628.028.527.330.228.4
Percentage of Revenues srt:Asia us-gaap:ConsolidatedEntities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:Europe, bwa:Drivetrain



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value191189203211227200208248291248238
Percentage of Revenues8.47.48.18.38.87.88.49.210.59.69.9
Percentage of Revenues8.47.48.18.38.87.88.49.210.59.69.9
Percentage of Revenues srt:Europe bwa:Drivetrain100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:Europe, bwa:Engine



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value711703716760801731690807846725693
Percentage of Revenues31.227.528.729.831.228.427.930.030.428.128.7
Percentage of Revenues31.227.528.729.831.228.427.930.030.428.128.7
Percentage of Revenues srt:Europe bwa:Engine100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:Europe, us-gaap:ConsolidatedEntities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value902892919971102893189910551137973931
Percentage of Revenues39.634.936.938.140.136.236.339.240.837.738.6
Percentage of Revenues39.634.936.938.140.136.236.339.240.837.738.6
Percentage of Revenues srt:Europe us-gaap:ConsolidatedEntities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:NorthAmerica, bwa:Drivetrain



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value423429456461445457451441448431398
Percentage of Revenues18.616.818.318.117.317.818.216.416.116.716.5
Percentage of Revenues18.616.818.318.117.317.818.216.416.116.716.5
Percentage of Revenues srt:NorthAmerica bwa:Drivetrain100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:NorthAmerica, bwa:Engine



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value387368397407412386393392402363362
Percentage of Revenues17.014.415.916.016.115.015.914.614.414.115.0
Percentage of Revenues17.014.415.916.016.115.015.914.614.414.115.0
Percentage of Revenues srt:NorthAmerica bwa:Engine100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:NorthAmerica, us-gaap:ConsolidatedEntities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value810797853868857844844833850795761
Percentage of Revenues35.531.134.234.033.432.834.130.930.530.731.5
Percentage of Revenues35.531.134.234.033.432.834.130.930.530.731.5
Percentage of Revenues srt:NorthAmerica us-gaap:ConsolidatedEntities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Sales Revenue Goods Net

Cost Of Goods And Services Sold

us-gaap:CostOfGoodsAndServicesSold



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1832201419682038204720301962211421922021189418761890
Percentage of CostOfGoodsAndServicesSold100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues80.478.779.079.979.878.979.278.578.778.278.478.578.6

Cost Of Goods Sold

Gross Profit

us-gaap:GrossProfit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value44754552451351954251557959156552251451750147149646444639842942941342447244540637939637434434338339535935035734230627327523821315111679
Percentage of GrossProfit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues19.621.321.020.120.221.120.821.521.321.921.621.521.522.221.321.320.521.021.121.121.620.720.921.521.421.621.020.920.220.020.320.620.720.319.619.619.820.019.419.418.517.814.812.79.7

Research And Development Expense

us-gaap:ResearchAndDevelopmentExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value1099410211310410310811211610410110496848885857675807578859082717271646667586461454642
Percentage of ResearchAndDevelopmentExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues4.83.74.14.44.14.04.44.24.24.04.24.44.03.74.03.63.83.64.03.93.84.04.24.13.94.03.83.93.83.63.53.33.63.53.23.23.3

Selling General And Administrative Expense

us-gaap:SellingGeneralAndAdministrativeExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value213205230212226225230236253239224215218217209202188178148167168169174181173167157155159156151153169146151157165148150137130
Percentage of SellingGeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues9.38.09.28.38.88.89.38.89.19.39.39.09.19.69.58.78.38.47.98.28.58.58.68.28.38.98.78.28.69.18.98.28.88.38.48.79.59.710.69.710.1

Operating Income Loss

us-gaap:OperatingIncomeLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value189478276285264265278312333209275299292-4581502692642002372422592122372802331872252431981701631932251911982281791571231171066727-495
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues8.318.711.111.210.310.311.211.612.08.111.412.512.2-20.36.811.611.69.412.611.913.110.711.712.811.210.012.512.910.79.99.610.411.810.811.112.610.410.38.78.38.35.62.7-5.40.7

Interest And Debt Expense

us-gaap:InterestAndDebtExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value12121514141314141616171818192221211715171010998788965121517182018221814141613919
Percentage of InterestAndDebtExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.50.50.60.50.50.50.60.60.60.70.70.80.70.91.00.90.90.80.80.90.50.50.40.40.40.40.40.50.50.40.30.70.81.01.01.11.11.41.31.01.11.31.31.02.3

Interest Expense Debt

Other Nonoperating Income Expense

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

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value186475273255262266282314331206274297285-464141259253196232237259214244285235193229246199175170194221
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues8.218.611.010.010.210.411.411.711.98.011.312.411.9-20.66.411.111.29.312.411.713.110.812.113.011.310.312.713.010.810.210.010.511.6

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 End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value4923866739119663094338797686-1834884806166807267718568445666504864685758464940304262051-19-6
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues2.29.32.62.93.50.72.71.13.413.13.33.23.6-8.12.23.63.52.93.63.93.63.43.53.93.32.43.13.52.72.83.83.73.03.32.62.72.42.00.31.81.60.50.1-2.1-0.8

Income Taxes Paid Net

us-gaap:IncomeTaxesPaidNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-312012-03-312011-03-312010-03-31
Value4395592168498010580596773785410259845552255052527294474814
Percentage of IncomeTaxesPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues1.93.72.40.82.71.93.33.92.92.32.83.13.32.44.62.53.72.62.81.32.52.62.63.55.12.52.81.1

Profit Loss

us-gaap:ProfitLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value137237207182171247215284236-132194221199-2819317517313516515718714717319916714917218014812610512616312714616712911511187815620-33-6
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues6.09.38.37.16.79.68.710.68.5-5.18.19.38.3-12.54.27.57.66.48.87.79.57.48.59.18.07.99.69.58.07.46.26.88.67.28.29.27.57.57.96.26.34.71.9-3.7-0.8

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value5527285177159179162134284-90245279237-44410611123386120225-54-47-141881562631757216432214-9196209260-501
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues2.410.63.46.96.27.06.55.010.2-3.510.211.79.9-19.74.84.810.34.16.411.1-2.7-2.4-0.78.67.514.69.33.99.71.711.2-0.510.812.118.5-3.50.1

Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value3-953-1-1426-215-10-4-2-21-1030031-21211-1004-1-104-1
Percentage of ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.1-0.40.20.1-0.0-0.60.10.2-0.10.6-0.00.0-0.2-0.1-0.10.1-0.10.00.20.0-0.00.20.1-0.10.10.10.10.1-0.10.0-0.00.2-0.1-0.1-0.00.3-0.1

us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value353-1-1436-2
Percentage of ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest100.0100.0100.0100.0103.5125.092.383.3
Percentage of Revenues0.10.20.1-0.0-0.60.10.2-0.1
Percentage of Revenues us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.0

Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value6029493184171195171140298-40246279241-45110810923596116224-54-43-161901552661747416332214-5195207260-460
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Revenues2.611.53.77.26.77.66.95.210.7-1.610.211.710.0-20.04.94.710.44.56.211.1-2.7-2.2-0.88.77.414.79.24.09.61.811.2-0.310.712.018.5-3.20.0

Net Income Loss

us-gaap:NetIncomeLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value129220194172160230203271225-146184212189-2938316416412515714817813916619015914116617414212110112015812214116212411110682765217-35-7
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues5.78.67.86.76.28.98.210.18.1-5.77.78.97.9-13.03.87.17.25.98.47.39.07.08.28.77.67.59.29.27.77.16.06.58.36.97.98.97.27.37.65.85.94.41.7-3.9-0.9

us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value129194172160229204272225
Percentage of NetIncomeLoss100.0100.0100.0100.099.9100.1100.1100.0
Percentage of Revenues5.77.86.76.28.98.210.18.1
Percentage of Revenues us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.0

Net Income Loss Available To Common Stockholders Diluted

Net Income Loss Attributable To Noncontrolling Interest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value8171310111712121114991011911910898769886665455555434453220
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.40.70.50.40.40.70.50.50.40.50.40.40.40.50.40.50.40.50.50.50.40.40.30.40.40.40.30.30.40.30.30.30.30.30.30.30.30.30.30.30.40.30.30.20.1

us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value81713101117121212
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0101.799.296.0102.6
Percentage of Revenues0.40.70.50.40.40.70.50.40.4
Percentage of Revenues us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.0

Assets

us-gaap:Assets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value95029702101991023110104100959716977710034978798169288908388349007898889408841768777667522722872827457735769176964670565286400634662206281595860946226600755554811
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value12271091169615451262144411361114109011501460145014001487120710991122
Percentage of Assets12.911.216.615.112.514.311.711.410.911.814.915.615.416.813.412.212.7
Percentage of Assets12.911.216.615.112.514.311.711.410.911.814.915.615.416.813.412.212.7
Percentage of Assets us-gaap:CorporateNonSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementBusinessSegments

bwa:Drivetrain



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-31
Value38874075386539064018391938213921402539033748340833603212356637163740368518801864181717831793182818631786182617621747165216281631167315621579161412301104
Percentage of Assets40.942.037.938.239.838.839.340.140.139.938.236.737.036.439.641.341.841.724.524.024.224.724.624.525.325.826.226.326.825.825.726.226.626.225.925.922.222.9
Percentage of Assets40.942.037.938.239.838.839.340.140.139.938.236.737.036.439.641.341.841.724.524.024.224.724.624.525.325.826.226.326.825.825.726.226.626.225.925.922.222.9
Percentage of Assets bwa:Drivetrain100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwa:Engine



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-31
Value43884536463847804824473047574741491947324607442943224134423341724211401840324043394739363968409140023519351434513390329933433390349533293436356632772812
Percentage of Assets46.246.845.546.747.746.949.048.549.048.446.947.747.646.847.046.447.145.452.552.152.554.554.554.954.450.950.551.551.951.552.754.555.755.956.457.359.058.5
Percentage of Assets46.246.845.546.747.746.949.048.549.048.446.947.747.646.847.046.447.145.452.552.152.554.554.554.954.450.950.551.551.951.552.754.555.755.956.457.359.058.5
Percentage of Assets bwa:Engine100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-31
Value82758611850386868842865085798662894486368355783876837347779978887952770359125907576557195762592058665305534052135138495149725021516948915015518145083916
Percentage of Assets87.188.883.484.987.585.788.388.689.188.285.184.484.683.286.687.888.987.176.976.176.679.179.179.479.776.776.777.778.777.478.380.782.382.182.383.281.281.4
Percentage of Assets87.188.883.484.987.585.788.388.689.188.285.184.484.683.286.687.888.987.176.976.176.679.179.179.479.776.776.777.778.777.478.380.782.382.182.383.281.281.4
Percentage of Assets us-gaap:OperatingSegments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value95029702101991023110104100959716977710034978798169288908388349007898889408841768777667522722872827457735769176964670565286400634662206281595860946226600755554811
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value472447064457439442744225406639603910371638253612340332183709368136933553371736863504361637303828368335603367319531063082304428732658238724052430230622582185
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets49.748.543.742.942.341.941.940.539.038.039.038.937.536.441.241.041.340.248.447.546.650.051.251.350.151.548.447.647.648.248.046.242.340.139.539.038.440.745.4

Assets Current

us-gaap:AssetsCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value374138363987384937193804349035433697354334013193310729113289320631823135330134013325297029513037302127982906273626012472249324202410213722672305215320591551
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets39.439.539.137.636.837.735.936.236.836.234.634.434.233.036.535.735.635.542.943.844.241.140.540.741.140.541.740.839.838.639.338.938.435.937.237.035.937.132.3

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value901832916710494739361361409545414387358443518495392577103311071035797782771808939920817695715621481396359377372222449432187374357103188
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.58.69.06.94.97.33.73.74.15.64.24.23.95.05.85.54.46.513.414.313.811.010.710.311.013.613.212.210.711.29.87.76.36.06.26.03.78.10.00.00.07.40.00.0

Receivables Net Current

us-gaap:ReceivablesNetCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value17351921198320632065198720612131224720182046193919341689176418061861166515511573156414431466157115461248134713391318114712611327136911831237126912781023732
Percentage of ReceivablesNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets18.319.819.420.220.419.721.221.822.420.620.820.921.319.119.620.120.818.820.220.320.820.020.121.121.018.019.320.020.217.919.921.321.819.920.320.421.318.415.2

Inventory Net

us-gaap:InventoryNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312018-01-012017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value847807810817807780810800800758766773701656641687744756723523525506505531528516458454439449447475472480454482495490430314
Percentage of InventoryNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.98.37.98.08.07.78.38.28.00.07.87.97.67.27.37.68.38.58.26.86.86.77.07.37.17.06.66.56.56.97.07.57.67.77.67.98.08.27.86.5

Inventory Finished Goods

us-gaap:InventoryFinishedGoods



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value21120719519821319819018719718320717117117419121222322212513011911513612812311610611211311713112813112412012012211168
Percentage of InventoryFinishedGoods100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.22.11.91.92.12.02.01.92.01.92.11.81.92.02.12.42.52.51.61.71.61.61.91.71.71.71.51.71.71.82.12.12.12.12.01.92.02.01.4

Inventory L I F O Reserve

us-gaap:InventoryLIFOReserve



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value141514181816151313131414141513131414171817181816171615141616181817151714141311
Percentage of InventoryLIFOReserve100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.20.10.20.20.20.20.10.10.10.20.20.20.20.20.20.20.20.20.20.20.30.20.20.20.20.20.20.30.20.30.30.30.30.30.20.20.20.2

Inventory Raw Materials And Supplies

us-gaap:InventoryRawMaterialsAndSupplies



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value536502515520496485512502489469454424387378397437439412327325321319322324317279284263271264276273272254283289282244187
Percentage of InventoryRawMaterialsAndSupplies100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.65.25.05.14.94.85.35.14.94.84.64.64.34.34.44.94.94.74.34.24.34.44.44.44.34.04.13.94.24.14.44.44.34.34.64.74.74.43.9

Other Assets Current

Prepaid Expense And Other Assets Current

us-gaap:PrepaidExpenseAndOtherAssetsCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312018-01-012017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value2582762782592802501921851711541451671651571371471601721691371451391301211139883988277671011009382908879
Percentage of PrepaidExpenseAndOtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.72.82.72.52.82.52.01.91.70.01.51.71.81.71.61.61.81.91.91.81.91.81.81.71.51.31.21.41.21.21.11.61.61.51.41.51.41.4

Land

Machinery And Equipment Gross

Noncurrent Assets

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value425941924065418141654150404940234136404539223783364934943527349634903327302730672969304330443103303829262854286032213245312930362976290329042975289727612621
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets44.843.239.940.941.241.141.741.241.241.340.040.740.239.639.238.939.037.639.439.539.542.141.841.641.342.341.042.749.350.749.348.847.448.747.747.848.249.754.5

us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AssetsHeldUnderCapitalLeases



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value01222201115333557779888910222222222222
Percentage of PropertyPlantAndEquipmentGross0.00.00.00.00.00.10.00.00.00.00.20.10.10.10.20.10.20.20.20.30.30.30.30.30.40.10.10.10.10.10.10.10.10.10.10.10.1
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.10.00.00.00.10.10.10.10.10.10.10.10.10.10.10.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AssetsHeldUnderCapitalLeases0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ConstructionInProgress



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value334360326350395425371362386410381378366338331344365386389373342310282310282272265277249243229201192206194168128
Percentage of PropertyPlantAndEquipmentGross7.88.68.08.49.510.39.29.09.310.19.710.010.09.79.49.910.511.612.912.211.510.29.310.09.39.39.39.77.77.57.36.66.57.16.75.64.6
Percentage of Assets3.53.73.23.43.94.23.83.73.84.23.94.14.03.83.73.84.14.45.14.84.64.33.94.23.83.93.84.13.83.83.63.23.13.53.22.72.3
Percentage of Assets us-gaap:ConstructionInProgress0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:LandAndBuilding



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value869860843870879871880892932899874838807781807806814779720772754784799786774753738687706717695691697687690714669
Percentage of PropertyPlantAndEquipmentGross20.420.520.720.821.121.021.722.222.522.222.322.222.122.422.923.123.323.423.825.225.425.826.325.325.525.825.924.021.922.122.222.823.423.723.824.024.2
Percentage of Assets9.18.98.38.58.78.69.19.19.39.28.99.08.98.89.09.09.18.89.49.910.010.911.010.510.510.910.610.310.811.211.011.111.111.511.311.512.0
Percentage of Assets us-gaap:LandAndBuilding0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:MachineryAndEquipment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value3056297128942959288928512796276728162734265925622472237123832340230321541910191218631940195319971970189718481893226222822201214120842006201620911961
Percentage of PropertyPlantAndEquipmentGross71.870.971.270.869.468.769.168.868.167.667.867.767.767.867.666.966.064.763.162.462.763.764.264.464.964.864.866.270.270.370.470.570.069.169.470.371.0
Percentage of Assets32.230.628.428.928.628.228.828.328.127.927.127.627.226.826.526.025.824.424.924.624.826.826.826.826.827.426.528.234.735.734.734.433.233.733.133.635.3
Percentage of Assets us-gaap:MachineryAndEquipment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value16571513148015191500147314331406142713911351129312361137115911481148103698710421046107611011141113410991086117015631567153414661385134313671394136913081211
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets17.415.614.514.814.814.614.814.414.214.213.813.913.612.912.912.812.811.712.813.413.914.915.115.315.415.915.617.523.924.524.223.622.022.622.422.422.823.525.2

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value283929252812289128952903282728252923286327532663255325012518250224982448218521602049209320672089202719391875179617651788169816721696166416371681162315421490
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets29.930.127.628.328.728.829.128.929.129.328.128.728.128.328.027.827.927.728.427.827.229.028.428.027.628.026.926.827.027.926.826.927.027.926.927.027.027.831.0

Long Term Investments

us-gaap:LongTermInvestments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value315318694690617592610610581547559528530502512508487460438437422403460469440405402392377382380363345345354336319307257
Percentage of LongTermInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.33.36.86.76.15.96.36.25.85.65.75.75.85.75.75.75.55.25.75.65.65.66.36.36.05.95.85.85.86.06.05.85.55.85.85.45.35.55.3

Goodwill

us-gaap:Goodwill



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value181818421818184518481853185618581890188118821734170817021730176717741757118311841168120512101243124411971190117211701181117211611200118612031240123111131061
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets19.119.017.818.018.318.419.119.018.819.219.218.718.819.319.219.719.819.915.415.315.516.716.616.716.917.317.117.517.918.518.518.719.119.919.719.920.520.022.1

Intangible Assets Net Excluding Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value383402404421433439450461485492509453455463494525539543151169206243168148
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.04.14.04.14.34.44.64.74.85.05.24.95.05.25.55.86.06.22.12.53.24.13.03.1

Finite Lived Intangible Assets Net

Deferred Tax Assets Liabilities Net

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312019-01-012018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value406379484535592606502481477455458710714729753462477458495578582556554591616623577590607614575601602628625631661678531450
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.33.94.75.25.90.05.05.04.94.54.77.27.78.08.55.15.35.15.67.57.57.47.78.18.38.58.38.59.19.49.09.59.710.010.510.410.611.39.69.4

Liabilities Current

us-gaap:LiabilitiesCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value212423292525231322992398209922362436242523812106215120912445239923102357153916351601216821222170191016231674171615831603156815131881190519241936153213921046
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets22.424.024.822.622.823.821.622.924.324.824.322.723.723.727.126.725.826.720.021.121.330.029.229.126.023.524.025.624.225.024.724.329.932.031.631.125.525.121.7

Notes Payable Current

us-gaap:NotesPayableCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value286286419171164172507019484303141255175525515466441747210762360554133820125331622923923118618419615716517612869
Percentage of NotesPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.02.94.11.71.61.70.50.71.90.93.11.52.82.05.85.75.25.01.00.91.48.68.37.34.62.93.64.73.53.73.63.02.93.32.62.72.92.31.4

Long Term Debt Current

us-gaap:LongTermDebtCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value2522523861401401391426152016231918816316316081118221716660014510377381367363565
Percentage of LongTermDebtCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.72.63.81.41.41.40.20.00.10.20.20.20.30.22.11.81.81.80.10.20.20.30.20.20.10.10.00.00.00.10.10.26.06.46.05.80.10.10.1

Accounts Payable Current

Accounts Payable And Accrued Liabilities Current

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312019-01-012018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value179319772048208920562167214420092122216022702015190418411847176317901819186614361528148415301503162215621383137713591311128712761279129112971346136213181224977
Percentage of AccountsPayableAndAccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets18.920.420.120.420.30.021.220.721.721.523.220.520.520.320.919.619.920.321.118.719.719.721.220.721.821.220.019.820.320.120.120.120.620.621.822.121.921.922.020.3

Accrued Income Taxes Current

us-gaap:AccruedIncomeTaxesCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value4566585357589124440635954686193244928359141379384340427255372829524538390
Percentage of AccruedIncomeTaxesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.50.70.60.50.60.60.10.10.40.40.60.60.60.80.71.00.30.60.40.50.10.20.20.10.10.60.60.60.61.10.90.60.50.50.90.70.60.70.0

Dividends Payable Current

Long Term Debt

us-gaap:LongTermDebt



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value191619262042206920632080210021052137211921122094206320632277228322952285174217431749738723720103410271018913972828871966122511321234128312651058778
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets20.219.920.020.220.420.621.621.521.321.721.522.622.723.425.325.425.725.822.722.423.310.29.99.714.114.914.613.614.912.913.715.519.519.020.320.621.119.016.2

us-gaap:DebtInstrument

bwa:SeniorNotesFive



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value119119119119119119119119118118118118118118118118118118119119119119119119119119119119119119119119119119119119119
Percentage of LongTermDebt6.26.25.85.85.85.75.75.75.65.65.65.75.85.85.25.25.25.26.96.96.816.216.516.611.511.611.713.112.314.413.712.49.710.59.79.311.3
Percentage of Assets1.31.21.21.21.21.21.21.21.21.21.21.31.31.31.31.31.31.31.61.51.61.71.61.61.61.71.71.81.81.91.91.91.92.02.01.92.1
Percentage of Assets bwa:SeniorNotesFive0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

bwa:SeniorNotesFour



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value251251251251251251251251251251251251251251252254247247248248248248248248248248248248248247247247247247247247247
Percentage of LongTermDebt13.113.012.312.112.212.112.011.911.811.911.912.012.212.211.111.110.810.814.314.314.233.634.334.524.024.124.327.225.529.928.425.620.221.920.119.323.4
Percentage of Assets2.62.62.52.52.52.52.62.62.52.62.62.72.82.92.82.82.82.83.23.23.33.43.43.33.43.63.63.73.83.93.94.03.94.24.14.04.5
Percentage of Assets bwa:SeniorNotesFour0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

bwa:SeniorNotesOne



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value54955854256555857057658061159558556652752055654956253600370368363358348
Percentage of LongTermDebt28.729.026.527.327.027.427.427.628.628.127.727.025.625.224.424.124.523.50.00.030.232.529.427.932.9
Percentage of Assets5.85.85.35.55.55.65.95.96.16.16.06.15.85.96.26.16.36.10.00.05.96.26.05.86.3
Percentage of Assets bwa:SeniorNotesOne0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

bwa:SeniorNotesSeven



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value4944944944944944944934934934934934934934934934934934934984984980
Percentage of LongTermDebt25.825.624.223.923.923.723.523.423.123.323.423.623.923.921.721.621.521.628.628.628.50.0
Percentage of Assets5.25.14.84.84.94.95.15.04.95.05.05.35.45.65.55.55.55.66.56.46.60.0
Percentage of Assets bwa:SeniorNotesSeven0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

bwa:SeniorNotesSix



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value4974974974974974974964964964964954954954954954954954954994994990
Percentage of LongTermDebt25.925.824.324.024.123.923.623.623.223.423.523.724.024.021.721.721.621.728.628.628.50.0
Percentage of Assets5.25.14.94.94.94.95.15.14.95.15.15.35.55.65.55.55.55.66.56.46.60.0
Percentage of Assets bwa:SeniorNotesSix0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

bwa:TermLoanFacilitiesAndOther



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value675991427282926293037437280818981848975585448403024221719131119212331
Percentage of LongTermDebt0.30.40.20.40.40.71.31.41.41.31.41.41.82.13.23.53.53.94.74.85.110.28.17.64.63.93.02.62.32.12.31.41.01.71.71.83.0
Percentage of Assets0.10.10.00.10.10.10.30.30.30.30.30.30.40.50.80.90.91.01.11.11.21.00.80.70.70.60.40.40.30.30.30.20.20.30.30.40.6
Percentage of Assets bwa:TermLoanFacilitiesAndOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Long Term Debt Noncurrent

us-gaap:LongTermDebtNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value16641674165619291923194020852102213121032091207720402043208921192131212417341731173071670570410271021101891397182386695684875186791912591051773
Percentage of LongTermDebtNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets17.517.316.218.919.019.221.521.521.221.521.322.422.523.123.223.623.824.022.622.323.09.99.79.414.014.814.613.614.912.913.715.413.512.614.214.821.018.916.1

Deferred Tax Liabilities Noncurrent

Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value302306273283292298269284300301301290292294293302313312306311315326295307313312507502503509449451457457435450447438473
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.23.22.72.82.93.02.82.93.03.13.13.13.23.33.33.43.53.54.04.04.24.54.14.14.34.57.37.57.78.07.17.37.37.77.17.27.47.99.8

Minority Interest

us-gaap:MinorityInterest



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value140138121108111119103931051099079768380746777706458746964537167605563606062656067475137
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.51.41.21.11.11.21.11.01.01.10.90.90.80.90.90.80.80.90.90.80.81.01.00.90.71.01.00.90.91.01.01.01.01.11.01.10.80.90.8

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312019-01-012018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value548549444470459437357351352389355339321306275387410423415318336313326358380368326328316309318357365373391402421413362295
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.85.74.44.64.50.03.53.63.63.93.63.53.53.43.14.34.64.74.74.14.34.24.54.95.15.04.74.74.74.75.05.65.95.96.66.66.86.96.56.1

Stockholders Equity

us-gaap:StockholdersEquity



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value472447064457439442744225406639603910371638253612340332183709368136933553371736863504361637303828368335603367319531063082304428732658238724052430230622582185
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets49.748.543.742.942.341.941.940.539.038.039.038.937.536.441.241.041.340.248.447.546.650.051.251.350.151.548.447.647.648.248.046.242.340.139.539.038.440.745.4

Common Stock Value

us-gaap:CommonStockValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value333332222222222222222222221111111111111
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312018-01-012017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value6036594257575598546153365127495847224532453147124557437442154538448243464210411339853866371736063469330831773065292727532611249023882268211019881846168415601193
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets63.561.256.454.754.052.952.850.747.10.046.348.049.148.247.750.449.948.647.653.551.351.451.449.546.545.045.944.043.742.240.839.238.436.135.432.629.728.028.124.8

Treasury Stock Value

us-gaap:TreasuryStockValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value16231657165316531626158415811544148614451444143013771381135213001199115893186184483278272270272774067458956951081172170761861853134957
Percentage of TreasuryStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets17.117.116.216.216.115.716.315.814.814.814.715.415.215.615.014.513.413.112.111.111.211.510.79.79.610.510.610.19.08.98.013.011.511.910.19.98.86.31.2

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value-801-727-779-670-675-674-609-567-430-490-545-606-674-722-571-593-540-610-576-539-616-383-199-18-16-14-91-187-189-121-120-182-94-150-856531-5314
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-8.4-7.5-7.6-6.5-6.7-6.7-6.3-5.8-4.3-5.0-5.6-6.5-7.4-8.2-6.3-6.6-6.0-6.9-7.5-6.9-8.2-5.3-2.7-0.2-0.2-0.2-1.3-2.8-2.9-1.9-1.9-2.9-1.5-2.5-1.41.10.5-1.00.3

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-312012-03-312011-03-312010-03-31
Value2631843574274057025127034556224338604422303273439715028632255220461630-4164
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues11.57.214.316.71.622.210.110.01.221.59.314.22.519.610.414.11.518.78.014.11.612.810.82.20.91.6-2.45.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-312012-03-312011-03-312010-03-31
Value-120-109-103-173-104-121-126-105-160-181-315-122-132-61-113-125-103-1331-132-143-151-164-139-231-73-92-267-48
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-5.3-4.3-4.1-6.8-4.1-4.7-5.1-3.9-5.8-7.0-13.1-5.1-5.5-2.7-5.1-5.4-4.5-62.7-7.1-7.1-7.7-8.2-6.9-11.1-4.0-4.8-15.5-3.8

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-312012-03-312011-03-312010-03-31
Value-62-172-30-65-153-60-107-212-3-256108-198-15-423-99-86-124497-82-94416-52-205659977821
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-2.7-6.7-1.2-2.5-6.0-2.3-4.3-7.9-0.1-9.94.5-8.3-0.7-18.8-4.5-3.7-5.523.4-4.4-4.721.0-2.6-1.02.73.25.14.51.7

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-312012-03-312011-03-312010-03-31
Value2631843574274057025127034556224338604422303273439715028632255220461630-4164
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues11.57.214.316.71.622.210.110.01.221.59.314.22.519.610.414.11.518.78.014.11.612.810.82.20.91.6-2.45.0

Net Income Loss

us-gaap:NetIncomeLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value129220194172160230203271225-146184212189-2938316416412515714817813916619015914116617414212110112015812214116212411110682765217-35-7
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues5.78.67.86.76.28.98.210.18.1-5.77.78.97.9-13.03.87.17.25.98.47.39.07.08.28.77.67.59.29.27.77.16.06.58.36.97.98.97.27.37.65.85.94.41.7-3.9-0.9

us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value129194172160229204272225
Percentage of NetIncomeLoss100.0100.0100.0100.099.9100.1100.1100.0
Percentage of Revenues5.77.86.76.28.98.210.18.1
Percentage of Revenues us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.0

Profit Loss

us-gaap:ProfitLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value137237207182171247215284236-132194221199-2819317517313516515718714717319916714917218014812610512616312714616712911511187815620-33-6
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues6.09.38.37.16.79.68.710.68.5-5.18.19.38.3-12.54.27.57.66.48.87.79.57.48.59.18.07.99.69.58.07.46.26.88.67.28.29.27.57.57.96.26.34.71.9-3.7-0.8

Depreciation Depletion And Amortization

Increase Decrease In Other Operating Capital Net

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-312012-03-312011-03-312010-03-31
Value-4-31610-2121915-4143633-172-15682438923782031-10-3-27
Percentage of IncreaseDecreaseInOtherOperatingCapitalNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Inventories

us-gaap:IncreaseDecreaseInInventories



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-312012-03-312011-03-312010-03-31
Value58-2016931-271834271339255-931-317831030-1132718193347
Percentage of IncreaseDecreaseInInventories100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-312012-03-312011-03-312010-03-31
Value-120-109-103-173-104-121-126-105-160-181-315-122-132-61-113-125-103-1331-132-143-151-164-139-231-73-92-267-48
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-5.3-4.3-4.1-6.8-4.1-4.7-5.1-3.9-5.8-7.0-13.1-5.1-5.5-2.7-5.1-5.4-4.5-62.7-7.1-7.1-7.7-8.2-6.9-11.1-4.0-4.8-15.5-3.8

Payments To Acquire Investments

us-gaap:PaymentsToAcquireInvestments



Period End2020-03-312019-09-302019-06-302019-03-312018-09-30
Value044711
Percentage of PaymentsToAcquireInvestments0.0100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-312012-03-312011-03-312010-03-31
Value-62-172-30-65-153-60-107-212-3-256108-198-15-423-99-86-124497-82-94416-52-205659977821
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-2.7-6.7-1.2-2.5-6.0-2.3-4.3-7.9-0.1-9.94.5-8.3-0.7-18.8-4.5-3.7-5.523.4-4.4-4.721.0-2.6-1.02.73.25.14.51.7

Proceeds From Issuance Of Long Term Debt

us-gaap:ProceedsFromIssuanceOfLongTermDebt



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-312012-03-312011-03-312010-03-31
Value131815191138071230000400541113101222101001611912060
Percentage of ProceedsFromIssuanceOfLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

Repayments Of Long Term Debt

us-gaap:RepaymentsOfLongTermDebt



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-312012-03-312011-03-312010-03-31
Value1415015132650041042661777087612382100159932
Percentage of RepaymentsOfLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Payments Of Dividends

Payments Of Dividends

Payments For Repurchase Of Common Stock

us-gaap:PaymentsForRepurchaseOfCommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-312012-03-312011-03-312010-03-31
Value000336703955550155331386610479219672933496504901810
Percentage of PaymentsForRepurchaseOfCommonStock0.00.00.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.0100.00.0

Repayments Of Long Term Debt

us-gaap:RepaymentsOfLongTermDebt



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-312012-03-312011-03-312010-03-31
Value1415015132650041042661777087612382100159932
Percentage of RepaymentsOfLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Debt Instrument Interest Rate Stated Percentage

us-gaap:DebtInstrument

us-gaap:DebtInstrumentInterestRateStatedPercentage

bwa:SeniorNotesOne



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312012-09-302012-06-302012-03-312011-09-302011-06-30
Value0.0180.0180.0180.0180.0180.0180.0180.0180.0180.0180.0180.0180.0180.0180.0180.0180.0350.0350.0350.0350.035
Percentage of DebtInstrumentInterestRateStatedPercentage100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations bwa:SeniorNotesOne0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Effective Income Tax Rate Continuing Operations

us-gaap:EffectiveIncomeTaxRateContinuingOperations



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-312012-03-312011-03-312010-09-302010-03-31
Value0.260.07800000000000001-0.025000000000000022-0.029999999999999970.347-0.030.012999999999999984-0.091999999999999970.2860.264000000000000070.002999999999999947-0.0229999999999999650.302-0.1670.00500000000000000440.00400000000000000360.3170.0030000000000000027-0.0060000000000000050.027999999999999970.2780.0050000000000000044-0.00100000000000000090.2890.260.260.240.0360.204
Percentage of EffectiveIncomeTaxRateContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

bwa:AdjustedEarningsPerSharePerformanceSharePlanDomain



Period End2020-03-31
Value115000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod100.0

bwa:RelativeRevenueGrowthPerformanceSharePlans



Period End2020-03-312019-06-302019-03-312018-06-302018-03-31
Value142000.05000.0190000.095000.0175000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod123.50.00.00.00.0

us-gaap:PerformanceShares



Period End2020-03-312019-06-302019-03-31
Value142000.05000.0190000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod123.50.00.0

us-gaap:RestrictedStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-03-312013-03-312011-02-28
Value766205.027994.022000.0125000.0930338.063039.00.068000.0625416.027247.00.00.0776753.025212.030914.00.0667874.017246.0419926.0371697.0328138.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod666.30.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Share Based Compensation

us-gaap:ShareBasedCompensation



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-312012-03-312011-03-312010-03-31
Value1012139815157141711111316710999910887152144
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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 End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value901832916710517739362362410545444
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwa:AdjustedEbit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value271400341351346373345395401389350353351338305327317311282300301293290330312261280258228265271231236218167170
Percentage of AdjustedEbit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementBusinessSegments

bwa:Drivetrain



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-31
Value63136100102105130107116121123111109104918692838170727165688980655956445461433832
Percentage of AdjustedEbit23.234.029.329.130.335.031.129.430.231.831.931.029.826.928.528.326.426.124.924.023.622.423.426.925.825.221.321.719.320.622.618.816.514.7

bwa:Engine



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-31
Value208264241249241242238278280265238244247247218234233230211228230228222241231195220202184210209188197186
Percentage of AdjustedEbit76.866.070.770.969.765.068.970.669.868.268.169.070.273.171.571.773.673.975.176.076.477.676.673.174.274.878.778.380.779.477.481.283.585.3

bwa:EffectiveIncomeTaxRateReconciliationRestructuringExpense



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-31
Value4443171041021118
Percentage of EffectiveIncomeTaxRateReconciliationRestructuringExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwa:EquityInAffiliatesEarningsNetOfDividendsReceivedAndOther



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-312012-03-312011-03-312010-03-31
Value-413-10665-15-11-8-130-952-8-15-139-8-9810-9-15-7-12-11
Percentage of EquityInAffiliatesEarningsNetOfDividendsReceivedAndOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwa:GrossResearchAndDevelopmentExpenditures



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value1181261231281211251211341291261151191121061061041001049594921009610194848482757676697669605652
Percentage of GrossResearchAndDevelopmentExpenditures100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwa:Mergeracquisitionanddivestitureexpense



Period 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
Value2114511112360
Percentage of Mergeracquisitionanddivestitureexpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

bwa:Netimpactduetostockawardsmodification



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value00025-40
Percentage of Netimpactduetostockawardsmodification0.00.00.0100.0100.0100.00.0

bwa:OtherComprehensiveIncomeLossAdjusmentsbeforeReclassificationAdjustmentsandTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-6038-104-15-2-62-44-1425158586447-14922-5467-19-3975-228-205-1760-6
Percentage of OtherComprehensiveIncomeLossAdjusmentsbeforeReclassificationAdjustmentsandTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwa:OtherComprehensiveIncomeLossBeforeReclassificationAdjustmentsTax



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value1282127-1-1-56-2-20-4100-18-1-25870-1
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationAdjustmentsTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwa:OtherComprehensiveIncomeLossReclassificationAdjustmentTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-1-16161-5001-2100-4000-2000-4100
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwa:OtherComprehensiveIncomeLossReclassificationAdjustmentsBeforeTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-33428312433100122201012302
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentsBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwa:ResearchAndDevelopmentContractPercentOfNetResearchAndDevelopmentMaximum



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-31
Value0.050.00.050.050.050.00.050.050.050.00.050.050.050.00.050.050.050.00.050.050.050.00.050.050.050.050.050.050.050.050.05
Percentage of ResearchAndDevelopmentContractPercentOfNetResearchAndDevelopmentMaximum100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwa:ResearchAndDevelopmentCustomerReimbursements



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value9322115172213221321131415221719152720141721101112121110111081111814109
Percentage of ResearchAndDevelopmentCustomerReimbursements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwa:SegmentReportingCorporateAllocation



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value376047394236433752483740444327293131232632362223302525322421362128303422
Percentage of SegmentReportingCorporateAllocation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwa:TaxReformAdjustmentstoProvisionforIncomeTaxes



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value000-622-12000273
Percentage of TaxReformAdjustmentstoProvisionforIncomeTaxes0.00.00.0100.0100.0100.00.00.00.0100.0

us-gaap:AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-312012-03-312011-03-312010-03-31
Value261360338350319369346365364353301349321294285285285244269262273246286296206230176139
Percentage of AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AwardType, us-gaap:StatementEquityComponents

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions

us-gaap:PerformanceShares, us-gaap:AdditionalPaidInCapital



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-30
Value-1641-1092
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedStock, us-gaap:AdditionalPaidInCapital



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-30
Value-2094-2586
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions125.0225.0400.0250.088.9300.0

us-gaap:AllocatedShareBasedCompensationExpense



Period End2020-03-312019-03-31
Value32
Percentage of AllocatedShareBasedCompensationExpense100.0100.0

us-gaap:AwardType

bwa:RelativeRevenueGrowthPerformanceSharePlans



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-30
Value2431-145168223-22
Percentage of AllocatedShareBasedCompensationExpense66.70.00.00.0-50.00.00.00.00.00.00.00.00.00.00.0

us-gaap:PerformanceShares



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value10203330122236043272
Percentage of AllocatedShareBasedCompensationExpense33.30.00.00.0150.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount



Period End2020-03-312019-09-302019-03-312018-09-30
Value0.0100000.0500000.0100000.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount0.0100.0100.0100.0

us-gaap:AssetImpairmentCharges



Period End2020-03-312019-03-312017-12-312017-09-302016-09-302015-09-302009-06-302008-07-31
Value9071010603672
Percentage of AssetImpairmentCharges100.00.0100.00.0100.00.0100.0100.0

us-gaap:StatementScenario, us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

us-gaap:BusinessCombinationConsiderationTransferred1

srt:ScenarioForecast, bwa:DelphiTechnologies, us-gaap:SubsequentEvent



Period End2020-01-28
Value3300
Percentage of BusinessCombinationConsiderationTransferred1100.0

us-gaap:CapitalExpendituresIncurredButNotYetPaid



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-31
Value5542-1-238441095251-1-662341-757190193811-348
Percentage of CapitalExpendituresIncurredButNotYetPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value69-84206193-2223770-48-135
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.00.0100.0100.0

us-gaap:CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-312012-03-31
Value-31-10112-4-2-2-245000-40-4701-2-40
Percentage of CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentRisk

us-gaap:ForeignExchangeContract



Period End2020-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-312012-03-31
Value-3112-4-2-2-245000-20-4701-2-40
Percentage of CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths100.0100.0108.3100.097.995.7100.096.695.598.1225.088.9-300.059.575.097.7100.0100.0100.0100.0100.0120.0

us-gaap:Swaption



Period End2020-03-31
Value0.0
Percentage of CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths-0.0

us-gaap:CommonStockDividendsPerShareDeclared



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-30
Value0.17-0.510.170.170.170.170000000000000040.170.170.170.169999999999999980.140.140.140.140.130.130.130.130.130.130.130.130.130.1250.1250.250.00.00.0
Percentage of CommonStockDividendsPerShareDeclared100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:CostmethodInvestmentsOtherThanTemporaryImpairment



Period End2020-03-312019-03-31
Value90
Percentage of CostmethodInvestmentsOtherThanTemporaryImpairment100.00.0

us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

bwa:RomeoSystemsInc.



Period End2020-03-31
Value9
Percentage of CostmethodInvestmentsOtherThanTemporaryImpairment100.0

us-gaap:DeferredIncomeTaxExpenseBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-312012-03-312011-03-312010-03-31
Value-5159-737-2-33-2-42825201820-265-22023-241110-2715-17-22-18-3
Percentage of DeferredIncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses

country:US, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value-10-2-1-1-1
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses100.00.0100.0100.0100.0100.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value-3-2-2-2-1-1
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses300.00.0100.0200.0190.0100.0

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
Value0.00.0-1000000.00.00.0-300000.0-300000.0-300000.0-300000.0-300000.0-400000.0-300000.0-300000.0-500000.0-500000.0-600000.0
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses-0.00.050.00.0-0.030.030.00.00.00.00.00.00.00.00.00.0

us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit

country:US, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value0.00.0-1000000.00.00.0-1000000.0
Percentage of DefinedBenefitPlanAmortizationOfPriorServiceCostCredit0.00.0100.00.00.0100.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value0.00.00.00.0100000.00.0
Percentage of DefinedBenefitPlanAmortizationOfPriorServiceCostCredit0.00.0-0.00.00.0-0.0

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
Value-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1
Percentage of DefinedBenefitPlanAmortizationOfPriorServiceCostCredit0.00.0100.00.00.00.0110.00.00.00.00.00.00.00.00.00.0

us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets

country:US, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value323343
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets100.0100.0100.0100.0100.0100.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value656567
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets200.0250.0200.0166.7150.0233.3

us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanInterestCost

country:US, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value112232
Percentage of DefinedBenefitPlanInterestCost100.0100.0100.0100.0100.0100.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value233333
Percentage of DefinedBenefitPlanInterestCost200.0300.0150.0150.0100.0150.0

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
Value1101100000000110
Percentage of DefinedBenefitPlanInterestCost100.0100.00.00.050.026.735.00.00.00.00.00.00.00.00.00.0

us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost

country:US, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value-1000000.00.00.00.00.0-1000000.0
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost100.00.00.00.00.0100.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value454532
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost-400.00.00.00.00.0-200.0

us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value0.00.00.00.0100000.00.00.00.0100000.0100000.0200000.0100000.0400000.0300000.0300000.0
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost-0.00.00.00.00.0-0.00.00.00.00.00.00.00.00.00.0

us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanServiceCost

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value545535
Percentage of DefinedBenefitPlanServiceCost100.0100.0100.0100.0100.0100.0

us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value0.00.00.00.00.0100000.00.00.00.00.0100000.00.0100000.00.00.0
Percentage of DefinedBenefitPlanServiceCost0.00.00.00.00.02.00.00.00.00.00.00.00.00.00.0

us-gaap:DepreciationAndAmortization



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-312012-03-312011-03-312010-03-31
Value112110107107107109109104999797999474767276747468636057
Percentage of DepreciationAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:IncomeStatementLocation

us-gaap:DerivativeGainLossOnDerivativeNet

us-gaap:ForeignExchangeContract, us-gaap:Nondesignated, us-gaap:SellingGeneralAndAdministrativeExpenses



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-30
Value30-1-213
Percentage of DerivativeGainLossOnDerivativeNet100.00.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:OtherComprehensiveIncomeLocation

bwa:Foreigncurrencydenominateddebtdesignatedasanetinvestmenthedge, us-gaap:NetInvestmentHedging, us-gaap:OtherComprehensiveIncome



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value823-712432-16-19
Percentage of DerivativeGainLossOnDerivativeNet266.70.0700.0-600.0400.01066.70.00.0

us-gaap:CrossCurrencyInterestRateContract, us-gaap:NetInvestmentHedging, us-gaap:OtherComprehensiveIncome



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value3511-49314-70
Percentage of DerivativeGainLossOnDerivativeNet1166.70.0400.0-450.0340.0466.70.00.0

us-gaap:ForeignExchangeContract, us-gaap:CashFlowHedging, us-gaap:OtherComprehensiveIncome



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value-30-1010-6-1
Percentage of DerivativeGainLossOnDerivativeNet-100.00.0100.0-0.0170.00.00.00.0

us-gaap:ForeignExchangeContract, us-gaap:NetInvestmentHedging, us-gaap:OtherComprehensiveIncome



Period End2020-03-312019-09-302019-03-312018-09-302017-09-30
Value1200-3
Percentage of DerivativeGainLossOnDerivativeNet33.30.0-0.020.00.0

us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:IncomeStatementLocation

us-gaap:DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet

us-gaap:ForeignExchangeContract, us-gaap:CashFlowHedging, us-gaap:CostOfSales



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0001010-1-1-1000
Percentage of DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet0.00.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignExchangeContract, us-gaap:CashFlowHedging, us-gaap:SalesRevenueNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0-1-2-1-100000101
Percentage of DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet0.00.00.0-100.00.0-42.9-900.046.79.1-10.0-325.0180.0137.5

us-gaap:ForeignExchangeContract, us-gaap:CashFlowHedging, us-gaap:SellingGeneralAndAdministrativeExpenses



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.01000000.01000000.00.01000000.0-100000.0100000.0-300000.00.00.00.00.00.0
Percentage of DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet0.00.00.00.00.0-7.1100.020.0-0.0-0.0-0.00.00.0

us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:IncomeStatementLocation

us-gaap:DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet

us-gaap:CrossCurrencyInterestRateContract, us-gaap:NetInvestmentHedging, us-gaap:InterestExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value43323222100
Percentage of DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0

us-gaap:DerivativeInstrumentRisk, bwa:ScheduleOfMaturityPeriod

us-gaap:DerivativeNonmonetaryNotionalAmountMass

us-gaap:CommodityContract, bwa:MaturityOfDerivativesPeriodTwo



Period End2020-03-312019-12-31
Value148.0-58.0
Percentage of DerivativeNonmonetaryNotionalAmountMass100.0100.0

us-gaap:StatementEquityComponents

us-gaap:DividendsCommonStockCash

us-gaap:NoncontrollingInterest



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value35-110201-11718
Percentage of DividendsCommonStockCash100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RetainedEarnings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value353535353535353536
Percentage of DividendsCommonStockCash1166.7700.0-3500.0350.0175.01972.2-3500.0205.9200.0

us-gaap:EffectOfExchangeRateOnCashAndCashEquivalents



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-312012-03-312011-03-312010-03-31
Value-1213-184-5-11-170-5129102-325-138-19-1023-60-24-48-2-2213-20
Percentage of EffectOfExchangeRateOnCashAndCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossRelatedToLitigationSettlement



Period End2020-03-312019-03-312012-09-302012-06-302011-09-302011-06-302010-09-302010-06-30
Value0-140002900
Percentage of GainLossRelatedToLitigationSettlement0.0100.00.00.00.0100.00.00.0

us-gaap:IncomeLossFromEquityMethodInvestments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value5779910151310-12141491112109118118111412812101191011129101188910109
Percentage of IncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncomeTaxReconciliationOtherAdjustments



Period End2020-03-312019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-12-17-5-10-1-9036-5-10317-2-21
Percentage of IncomeTaxReconciliationOtherAdjustments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-312012-03-312011-03-312010-03-31
Value-96-1053072-120125-952-1091835015-1614840-10-4376-82-33254-456954-48102
Percentage of IncreaseDecreaseInAccountsPayableAndAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccruedIncomeTaxesPayable



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-312012-03-312011-03-312010-03-31
Value8918-120-553-242-3-1618-3124-2520-627-716-30-27-1-810
Percentage of IncreaseDecreaseInAccruedIncomeTaxesPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-312012-03-312011-03-312010-03-31
Value8-62-123-2482113-9-448-4-4100-679-43132111073
Percentage of IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInReceivables



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-312012-03-312011-03-312010-03-31
Value-152-95-14-595-67-47-28187-6458-41215-3853-32155-87-5-2720223-40246197167179128
Percentage of IncreaseDecreaseInReceivables100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value0011001110100000001110111111112222221
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestCostsCapitalized



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-312012-03-312011-03-312010-03-31
Value4344555555544333344333332432
Percentage of InterestCostsCapitalized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestPaidNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-312012-03-312011-03-312010-03-31
Value2914257261628830193183126281529143112121112181213126
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentIncomeInterest



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value234232111111111112211111111111111111110000000
Percentage of InvestmentIncomeInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-21-1270-2-2-2-2-1-1-1-1
Percentage of NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NumberOfReportableSegments



Period End2020-03-312019-09-30
Value2.00.0
Percentage of NumberOfReportableSegments100.00.0

us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-31
Value-227-4-19-8280-62-61405200-26-24-1248-21-1-1-3-5-1-1-1-1-12
Percentage of OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-31
Value-201-10111-3-1-1-2-15-211-2-3-246110-10211-319-3-6-3
Percentage of OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent100.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-30
Value-7481-114-13-9-23-43-1456549647349-15027-5468-57-3784-249-141-196-1-294-5-8447-9044-147
Percentage of OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-6476-107-15-5-20-45-1486149647349-15027-5468-57-3784-249-141-196-1-2
Percentage of OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeForeignCurrencyTranslationGainLossArisingDuringPeriodTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-31
Value10-137-2412-1-2-3000000000000
Percentage of OtherComprehensiveIncomeForeignCurrencyTranslationGainLossArisingDuringPeriodTax100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsAndTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value0-2000-10000010000000000000
Percentage of OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsAndTax0.0100.00.00.00.0100.00.00.00.0100.00.0100.00.0100.0100.0100.0100.00.00.0100.00.0100.00.0100.00.0

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-31
Value-7452-1095-1-50-41-1375955606747-15122-5369-33-3777-233-183-181-1-2961-6762-8756
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-7452-1095-1-51-41-13860
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.498.6100.5100.5

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsAndTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-6-22-3-1-3-400-64-20482-1740252-17-14-73000
Percentage of OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsAndTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansBeforeReclassificationAdjustmentsTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-26-1-43130-11-5121-20-10-1101-423000
Percentage of OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansBeforeReclassificationAdjustmentsTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value02-10080-2-1-81121000-100210000
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax0.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value0.00.00.00.0100000.0-100000.0-500000.0-300000.0-300000.0-200000.0900000.0600000.0-600000.0200000.00.00.0100000.0200000.0700000.0400000.0-100000.0200000.00.0-100000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax0.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.00.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-33328311212222222122221401
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-1-16161-3000-4000-4000-5000-4100
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-31
Value-200-10210-5-2-1-107-1011-3-1610190-3173014-4-10-4
Percentage of OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax100.00.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-31
Value0000000-11000-1100-1-101-1570-16005-1-30
Percentage of OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax0.00.00.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherNonrecurringIncomeExpense



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-30
Value0001410-40200000-28-1002011-1
Percentage of OtherNonrecurringIncomeExpense0.00.00.0100.0100.00.0100.0100.0100.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherOperatingIncomeExpenseNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-45138-18-16-29-51-7-30-4117-220-5-741-111-25-11-68-13-19-1-31-12-11-38-5132-16-17-29-36-1-21028100-20-1
Percentage of OtherOperatingIncomeExpenseNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForProceedsFromHedgeInvestingActivities



Period End2020-03-312019-03-31
Value-1000000.00.0
Percentage of PaymentsForProceedsFromHedgeInvestingActivities100.00.0

us-gaap:PaymentsForProceedsFromOtherInvestingActivities



Period End2020-03-312019-03-31
Value2-1
Percentage of PaymentsForProceedsFromOtherInvestingActivities100.0100.0

us-gaap:RestructuringCostAndReserve

us-gaap:PaymentsForRestructuring

us-gaap:EmployeeSeverance



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-31
Value138220961003471992711262
Percentage of PaymentsForRestructuring100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestructuringCostAndReserve, us-gaap:StatementBusinessSegments

us-gaap:EmployeeSeverance, bwa:Drivetrain



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-31
Value0100310001251762510121
Percentage of PaymentsForRestructuring0.012.50.00.037.621.335.3100.033.343.267.570.788.363.593.892.244.040.942.9

us-gaap:EmployeeSeverance, bwa:Engine



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-31
Value137220541002122310131
Percentage of PaymentsForRestructuring100.087.5100.0100.062.478.764.70.066.756.832.529.311.736.56.27.856.059.157.1

us-gaap:PaymentsOfDividendsCommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-12-312013-03-31
Value353535353535353535352929292927282828292929293028280
Percentage of PaymentsOfDividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:PaymentsOfDividendsMinorityInterest



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-312012-03-312011-03-312010-03-31
Value145-122282717510214232040215011491205
Percentage of PaymentsOfDividendsMinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-12-312013-03-312012-03-312011-03-312010-03-31
Value200010000051000011870012401060002030
Percentage of PaymentsToAcquireBusinessesNetOfCashAcquired100.00.00.00.0100.00.00.00.00.0100.0100.00.00.00.00.0100.00.00.0100.0100.00.0100.00.00.00.0100.00.0

us-gaap:BusinessAcquisition

bwa:RinehartMotionSystemsLLCandAMRacingLLC



Period End2020-03-312019-03-31
Value210
Percentage of PaymentsToAcquireBusinessesNetOfCashAcquired100.0100.0

us-gaap:PaymentsToAcquireProductiveAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-312012-03-312011-03-312010-09-302010-03-31
Value117135102127117152125108160170135123130145120130104158133145140165140126879570655
Percentage of PaymentsToAcquireProductiveAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromDivestitureOfBusinessesNetOfCashDivested



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302016-09-30
Value000123005
Percentage of ProceedsFromDivestitureOfBusinessesNetOfCashDivested0.00.00.0100.0100.00.00.0100.0

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value-1200-1-14000-14000-1544-7112-1
Percentage of ProceedsFromPaymentsForOtherFinancingActivities100.00.00.0100.0100.0100.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductWarrantyAccrualPayments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-312012-03-312011-03-312010-03-31
Value1814131218281519101413161533511191510208915777158
Percentage of ProductWarrantyAccrualPayments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductWarrantyAccrualPreexistingIncreaseDecrease



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value5207081
Percentage of ProductWarrantyAccrualPreexistingIncreaseDecrease100.0100.00.0100.00.0100.0100.0

us-gaap:ProductWarrantyAccrualWarrantiesIssued



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-312012-03-312011-03-312010-03-31
Value1527912152112211321716271412102414166201151110159
Percentage of ProductWarrantyAccrualWarrantiesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestructuringCharges



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-09-302011-09-30
Value15311413142253174513000119624919121713153935000270
Percentage of RestructuringCharges100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.00.0

us-gaap:RestructuringCostAndReserve

us-gaap:EmployeeSeverance



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-31
Value128871271107339771032
Percentage of RestructuringCharges80.057.161.550.024.686.924.010.523.136.551.634.447.264.557.366.783.0

us-gaap:RestructuringCostAndReserve, us-gaap:RestructuringPlan, us-gaap:StatementBusinessSegments

us-gaap:EmployeeSeverance, bwa:Voluntarytermination, bwa:Engine



Period End2020-03-312019-09-302019-06-302019-03-31
Value8774
Percentage of RestructuringCharges53.350.053.828.6

us-gaap:RestructuringCostAndReserve, us-gaap:StatementBusinessSegments

us-gaap:EmployeeSeverance, bwa:Drivetrain



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-31
Value100001100220675632
Percentage of RestructuringCharges6.70.00.00.0-8.85.414.75.323.112.535.94.334.261.240.542.781.3

us-gaap:EmployeeSeverance, bwa:Engine



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-31
Value1188712500041220230
Percentage of RestructuringCharges73.357.161.550.033.381.49.35.30.024.015.630.113.13.316.824.01.8

us-gaap:RestructuringPlan, us-gaap:StatementBusinessSegments

bwa:Structuralcostsreductionactions, bwa:Drivetrain



Period End2020-03-312019-09-30
Value21
Percentage of RestructuringCharges13.37.1

bwa:Structuralcostsreductionactions, bwa:Engine



Period End2020-03-312019-09-30
Value53
Percentage of RestructuringCharges33.321.4

us-gaap:RestructuringCosts



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-31
Value216257-1323623300029016011815340
Percentage of RestructuringCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod

bwa:AdjustedEarningsPerSharePerformanceSharePlanDomain



Period End2020-03-31
Value0.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod0.0

bwa:RelativeRevenueGrowthPerformanceSharePlans



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-30
Value0.05000.056000.09000.02000.0144000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod0.00.00.00.00.00.0

us-gaap:PerformanceShares



Period End2020-03-312019-09-302019-06-302019-03-31
Value0.05000.056000.09000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod0.00.00.00.0

us-gaap:RestrictedStock



Period End2020-03-312019-09-302019-06-302019-03-312018-06-302018-03-31
Value9000.030000.037000.06000.0142000.07000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod0.00.00.00.00.00.0

us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue

bwa:AdjustedEarningsPerSharePerformanceSharePlanDomain



Period End2020-03-31
Value0.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue0.0

bwa:RelativeRevenueGrowthPerformanceSharePlans



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-30
Value0.044.7644.2444.1247.4345.82
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue0.00.00.00.00.00.0

us-gaap:PerformanceShares



Period End2020-03-312019-09-302019-06-302019-03-31
Value0.057.2955.6755.3
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue0.00.00.00.0

us-gaap:RestrictedStock



Period End2020-03-312019-09-302019-06-302019-03-312018-06-302018-03-31
Value42.2344.9945.1345.4145.6849.48
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue0.00.00.00.00.00.0

us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

bwa:AdjustedEarningsPerSharePerformanceSharePlanDomain



Period End2020-03-31
Value34.11
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue100.0

bwa:RelativeRevenueGrowthPerformanceSharePlans



Period End2020-03-312019-06-302019-03-312018-06-302018-03-31
Value34.1141.9241.950.252.64
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue100.00.00.00.00.0

us-gaap:PerformanceShares



Period End2020-03-312019-06-302019-03-31
Value28.5551.5951.52
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue83.70.00.0

us-gaap:RestrictedStock



Period End2020-03-312019-09-302019-06-302019-03-312018-06-302018-03-31
Value34.0536.6840.7841.9250.8652.64
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue99.80.00.00.00.00.0

us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod

bwa:AdjustedEarningsPerSharePerformanceSharePlanDomain



Period End2020-03-31
Value0.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod0.0

bwa:RelativeRevenueGrowthPerformanceSharePlans



Period End2020-03-31
Value0.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod0.0

us-gaap:PerformanceShares



Period End2020-03-31
Value0.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod0.0

us-gaap:RestrictedStock



Period End2020-03-312019-09-302019-06-302019-03-312018-06-302018-03-31
Value466000.07000.028000.0665000.068000.0486000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod0.00.00.00.00.00.0

us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue

bwa:AdjustedEarningsPerSharePerformanceSharePlanDomain



Period End2020-03-31
Value0.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue0.0

bwa:RelativeRevenueGrowthPerformanceSharePlans



Period End2020-03-31
Value0.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue0.0

us-gaap:PerformanceShares



Period End2020-03-31
Value0.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue0.0

us-gaap:RestrictedStock



Period End2020-03-312019-09-302019-06-302019-03-312018-06-302018-03-31
Value46.043.8150.4335.9451.1141.05
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue0.00.00.00.00.00.0

us-gaap:StandardAndExtendedProductWarrantyAccrualForeignCurrencyTranslationGainLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value-22-3-100-1-420121-40-12-20
Percentage of StandardAndExtendedProductWarrantyAccrualForeignCurrencyTranslationGainLoss100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AwardType, us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures

us-gaap:RestrictedStock, us-gaap:TreasuryStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value22-3-1421-2-1-212
Percentage of StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AwardType, us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation

us-gaap:PerformanceShares, us-gaap:TreasuryStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value12-11070014
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation100.0100.0100.00.0100.0100.00.0100.0100.0

bwa:Accumulatedothercomprehensiveincomelosscumulativechangesinnetgainlossfromhedgesbeforetax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value46432-57-14-26-36-84-56-46-2035
Percentage of Accumulatedothercomprehensiveincomelosscumulativechangesinnetgainlossfromhedgesbeforetax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentRisk

us-gaap:ForeignExchangeContract



Period End2020-03-312019-12-312019-06-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value-30-10-2-4-6-2015
Percentage of Accumulatedothercomprehensiveincomelosscumulativechangesinnetgainlossfromhedgesbeforetax-6.50.020.0-0.77.612.27.74.12.0-6.816.0

us-gaap:Swaption



Period End2020-03-312019-12-31
Value1000000.00.0
Percentage of Accumulatedothercomprehensiveincomelosscumulativechangesinnetgainlossfromhedgesbeforetax2.20.0

us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship

bwa:Foreigncurrencydenominateddebtdesignatedasanetinvestmenthedge, us-gaap:NetInvestmentHedging



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value-9-17-2-25-18-30-37-41-73-57
Percentage of Accumulatedothercomprehensiveincomelosscumulativechangesinnetgainlossfromhedgesbeforetax-19.6-425.0-6.2500.0-257.1215.6141.6113.986.8101.1

us-gaap:CrossCurrencyInterestRateContract, us-gaap:NetInvestmentHedging



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value511628172111106-70
Percentage of Accumulatedothercomprehensiveincomelosscumulativechangesinnetgainlossfromhedgesbeforetax110.9400.087.5-340.0300.0-84.4-38.2-18.38.8-0.0

us-gaap:ForeignExchangeContract, us-gaap:NetInvestmentHedging



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value6564443222
Percentage of Accumulatedothercomprehensiveincomelosscumulativechangesinnetgainlossfromhedgesbeforetax13.0125.018.8-80.057.1-31.9-11.8-8.0-3.4-5.1

bwa:Debtdifferencebetweenfairvalueandcarryingvalue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value351061048217-7116
Percentage of Debtdifferencebetweenfairvalueandcarryingvalue100.0100.0100.0100.0100.0100.0100.0

bwa:PropertyPlantAndEquipmentNetOfAccumulatedDepreciationBeforeTooling



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value2602267925852662266526772615261627082653257124902412235723672348234222912040202519231967194319611903182617671690165716781594157015911560153715801453
Percentage of PropertyPlantAndEquipmentNetOfAccumulatedDepreciationBeforeTooling100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwa:ToolingNetOfAmortization



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value237246227229230227212209214209182173140144151154156157145135126126124127124112107106107109104102104104100100958980
Percentage of ToolingNetOfAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-312011-12-312010-12-312009-12-31
Value00222122222211112222222222110110
Percentage of AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax0.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-312009-12-31
Value-200-100-1-3-4-10135010-20351-4-16-17-16-23-23-40-37-69-63-64-50-44-31
Percentage of AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax100.00.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-312011-12-312010-12-312009-12-31
Value228-230204208227-234192193199-197204202198-198192189190-189216219215-227178181180-181-214-216225187158165
Percentage of AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-312011-12-312010-12-312009-12-31
Value-571-497-577-463-450-441-418-374-228-293-343-407-481-530-379-407-352-421-363-326-410-160-181771781811455114086147210
Percentage of AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdditionalPaidInCapital



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value110911451129111611111145112711101102111811001088107711041092109110851109110810991096111211041097109211211132112911301160118514771205113411191135112011001034
Percentage of AdditionalPaidInCapital100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementScenario, us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

us-gaap:BusinessAcquisitionPercentageOfVotingInterestsAcquired

srt:ScenarioForecast, bwa:DelphiTechnologies, us-gaap:SubsequentEvent



Period End2020-01-28
Value0.84
Percentage of BusinessAcquisitionPercentageOfVotingInterestsAcquired100.0

us-gaap:ContractWithCustomerAssetNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312018-01-012017-12-31
Value910101011111010999
Percentage of ContractWithCustomerAssetNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BalanceSheetLocation

us-gaap:OtherNoncurrentAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value171180178187185187180172185180
Percentage of ContractWithCustomerAssetNet1900.01800.01780.01870.01681.81643.91721.01611.21912.41919.1

us-gaap:PrepaidExpensesAndOtherCurrentAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value38373628312926252118
Percentage of ContractWithCustomerAssetNet422.2370.0360.0280.0281.8257.9255.2238.3218.6193.6

us-gaap:ContractWithCustomerLiabilityCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value13101211121312111212
Percentage of ContractWithCustomerLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiabilityNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value9491416161717192121
Percentage of ContractWithCustomerLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:CostMethodInvestmentsFairValueDisclosure

bwa:RomeoSystemsInc.



Period End2020-03-31
Value41
Percentage of CostMethodInvestmentsFairValueDisclosure100.0

us-gaap:DebtInstrument

us-gaap:DebtInstrumentFaceAmount

bwa:SeniorNotesOne



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312009-04-09
Value500500500500500500500500500500500500500500500500373
Percentage of DebtInstrumentFaceAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentFairValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value194520252141214220712058208221532185220921852157210420812365234422572197169717021796750749756739729738736768770773777170614541434159115631482776
Percentage of DebtInstrumentFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Range

us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsCurrentFiscalYear

srt:Maximum



Period End2020-03-312019-09-302019-06-302019-03-31
Value20202525
Percentage of DefinedBenefitPlanExpectedFutureEmployerContributionsCurrentFiscalYear100.0100.0100.0100.0

srt:Minimum



Period End2020-03-312019-09-302019-06-302019-03-31
Value10151515
Percentage of DefinedBenefitPlanExpectedFutureEmployerContributionsCurrentFiscalYear50.075.060.060.0

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

us-gaap:DerivativeFairValueOfDerivativeAsset

us-gaap:OtherNoncurrentAssets, us-gaap:ForeignExchangeContract, us-gaap:DesignatedAsHedgingInstrument



Period End2020-03-312019-12-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value30300000
Percentage of DerivativeFairValueOfDerivativeAsset100.0100.00.00.00.00.0100.0

us-gaap:PrepaidExpensesAndOtherCurrentAssets, us-gaap:ForeignExchangeContract, us-gaap:DesignatedAsHedgingInstrument



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value2022311110
Percentage of DerivativeFairValueOfDerivativeAsset6.70.00.00.00.00.00.00.00.0112.5

us-gaap:PrepaidExpensesAndOtherCurrentAssets, us-gaap:ForeignExchangeContract, us-gaap:Nondesignated



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value1001010000
Percentage of DerivativeFairValueOfDerivativeAsset3.30.00.00.00.00.00.00.00.00.0

us-gaap:PrepaidExpensesAndOtherCurrentAssets, us-gaap:Swaption, us-gaap:DesignatedAsHedgingInstrument



Period End2020-03-312019-12-31
Value1000000.00.0
Percentage of DerivativeFairValueOfDerivativeAsset3.30.0

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

us-gaap:DerivativeFairValueOfDerivativeLiability

us-gaap:AccountsPayableAndAccruedLiabilities, us-gaap:CommodityContract, us-gaap:DesignatedAsHedgingInstrument



Period End2020-03-312019-12-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value0.00.0200000.0200000.0100000.0100000.00.0
Percentage of DerivativeFairValueOfDerivativeLiability0.00.0100.0100.0100.0100.00.0

us-gaap:AccountsPayableAndAccruedLiabilities, us-gaap:ForeignExchangeContract, us-gaap:DesignatedAsHedgingInstrument



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value4134312463
Percentage of DerivativeFairValueOfDerivativeLiability0.00.00.00.00.0800.01200.04000.06600.00.0

us-gaap:AccountsPayableAndAccruedLiabilities, us-gaap:ForeignExchangeContract, us-gaap:Nondesignated



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value0000100031
Percentage of DerivativeFairValueOfDerivativeLiability0.00.00.00.00.00.0100.0500.03800.00.0

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



Period End2020-03-312019-12-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value0800110
Percentage of DerivativeFairValueOfDerivativeLiability0.00.050.0350.01700.01800.00.0

us-gaap:Currency, us-gaap:DerivativeInstrumentRisk, bwa:ScheduleOfMaturityPeriod

us-gaap:DerivativeNotionalAmount

currency:BRL, us-gaap:ForeignExchangeContract, bwa:MaturityOfDerivativesPeriodThree



Period End2020-03-312019-12-312019-09-302018-12-31
Value0124
Percentage of DerivativeNotionalAmount0.0100.0100.0100.0

currency:CNY, us-gaap:ForeignExchangeContract, bwa:MaturityOfDerivativesPeriodOne



Period End2020-03-312019-12-312019-09-302018-12-31
Value52100
Percentage of DerivativeNotionalAmount0.0200.0500.00.0

currency:EUR, us-gaap:CrossCurrencyInterestRateContract, bwa:MaturityofDerivativesPeriod11Member



Period End2020-03-31
Value450
Percentage of DerivativeNotionalAmount0.0

currency:EUR, us-gaap:ForeignExchangeContract, bwa:MaturityOfDerivativesPeriodOne



Period End2020-03-312019-12-312019-09-302018-12-31
Value29038317
Percentage of DerivativeNotionalAmount0.038300.050.0175.0

currency:EUR, us-gaap:ForeignExchangeContract, bwa:MaturityofDerivativesPeriod7



Period End2020-03-312019-12-31
Value220
Percentage of DerivativeNotionalAmount0.00.0

currency:EUR, us-gaap:ForeignExchangeContract, bwa:MaturityofDerivativesPeriodNine



Period End2020-03-312019-12-31
Value20
Percentage of DerivativeNotionalAmount0.00.0

currency:GBP, us-gaap:ForeignExchangeContract, bwa:MaturityOfDerivativesPeriodThree



Period End2020-03-312019-12-31
Value09
Percentage of DerivativeNotionalAmount0.0900.0

currency:INR, us-gaap:ForeignExchangeContract, bwa:MaturityOfDerivativesPeriodFive



Period End2020-03-312019-12-31
Value30
Percentage of DerivativeNotionalAmount0.00.0

currency:INR, us-gaap:ForeignExchangeContract, bwa:MaturityOfDerivativesPeriodTwo



Period End2020-03-312019-12-31
Value780
Percentage of DerivativeNotionalAmount0.00.0

currency:JPY, us-gaap:ForeignExchangeContract, bwa:MaturityOfDerivativesPeriodOne



Period End2020-03-312019-12-312019-09-302018-12-31
Value370502389
Percentage of DerivativeNotionalAmount0.00.01150.02225.0

currency:JPY, us-gaap:ForeignExchangeContract, bwa:MaturityOfDerivativesPeriodTwo



Period End2020-03-312019-12-31
Value260
Percentage of DerivativeNotionalAmount0.00.0

currency:KRW, us-gaap:ForeignExchangeContract, bwa:MaturityOfDerivativesPeriodOne



Period End2020-03-312019-12-312019-09-302018-12-31
Value101326
Percentage of DerivativeNotionalAmount0.01300.0100.0150.0

currency:SEK, us-gaap:ForeignExchangeContract, bwa:MaturityOfDerivativesPeriodEightMemberDomain



Period End2020-03-312019-12-31
Value03
Percentage of DerivativeNotionalAmount0.0300.0

currency:USD, us-gaap:CrossCurrencyInterestRateContract, bwa:MaturityofDerivativesPeriod11Member



Period End2020-03-31
Value500
Percentage of DerivativeNotionalAmount0.0

currency:USD, us-gaap:ForeignExchangeContract, bwa:MaturityOfDerivativesPeriodFour



Period End2020-03-312019-12-31
Value3800
Percentage of DerivativeNotionalAmount0.00.0

currency:USD, us-gaap:ForeignExchangeContract, bwa:MaturityOfDerivativesPeriodOne



Period End2020-03-312019-12-312019-09-302018-12-31
Value21419000
Percentage of DerivativeNotionalAmount0.01400.095000.00.0

us-gaap:FIFOInventoryAmount



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value861822824835825797825813814779788715671656700758770737541544524524550544534474470453465463493491498469499510504443325
Percentage of FIFOInventoryAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:ValuationTechnique

us-gaap:ForeignCurrencyContractAssetFairValueDisclosure

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:MarketApproachValuationTechnique



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-12-31
Value3233311112467343246103323
Percentage of ForeignCurrencyContractAssetFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueByMeasurementFrequency, us-gaap:ValuationTechnique

us-gaap:FairValueMeasurementsRecurring, us-gaap:MarketApproachValuationTechnique



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value3233311112467343246103
Percentage of ForeignCurrencyContractAssetFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:ValuationTechnique

us-gaap:ForeignCurrencyContractsLiabilityFairValueDisclosure

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:MarketApproachValuationTechnique



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value413441361252821445823321247
Percentage of ForeignCurrencyContractsLiabilityFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueByMeasurementFrequency, us-gaap:ValuationTechnique

us-gaap:FairValueMeasurementsRecurring, us-gaap:MarketApproachValuationTechnique



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value41344136125282144582332
Percentage of ForeignCurrencyContractsLiabilityFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:ValuationTechnique

us-gaap:InterestRateDerivativeAssetsAtFairValue

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:MarketApproachValuationTechnique



Period End2020-03-312016-06-302016-03-312015-09-30
Value1862
Percentage of InterestRateDerivativeAssetsAtFairValue100.0100.0100.0100.0

us-gaap:FairValueByMeasurementFrequency, us-gaap:ValuationTechnique

us-gaap:FairValueMeasurementsRecurring, us-gaap:MarketApproachValuationTechnique



Period End2020-03-312016-06-302016-03-312015-09-30
Value1862
Percentage of InterestRateDerivativeAssetsAtFairValue100.0100.0100.0100.0

us-gaap:InventoryWorkInProcess



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1141131141171161131221231271261261201111021121091081028887838991929378797780828589949096991008869
Percentage of InventoryWorkInProcess100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilitiesOtherThanLongtermDebtNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value850855144014871497141013611384145014321426141214121397681713737728624647628652653688682639836819812827806816830848837871801
Percentage of LiabilitiesOtherThanLongtermDebtNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LineOfCreditFacilityCurrentBorrowingCapacity



Period End2020-03-312019-09-30
Value15001200
Percentage of LineOfCreditFacilityCurrentBorrowingCapacity100.0100.0

us-gaap:CashAndCashEquivalents

us-gaap:CommercialPaper



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value1200120012001200120012001200120010001000
Percentage of LineOfCreditFacilityCurrentBorrowingCapacity80.0100.00.00.00.00.00.00.00.00.0

us-gaap:DebtInstrument

us-gaap:RevolvingCreditFacility



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-292017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-04-122013-03-31
Value120012001200120012001200120012001200120012001200100010001000100010001000100010001000750650750750650
Percentage of LineOfCreditFacilityCurrentBorrowingCapacity80.00.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity



Period End2020-03-312017-12-312017-06-292017-03-312016-12-312015-12-312014-12-312014-09-302014-06-302011-03-312010-03-31
Value150015001500125012501250125012501250550250
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:ValuationTechnique

us-gaap:NetInvestmentHedgeDerivativeAssetsAtFairValue

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:MarketApproachValuationTechnique



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value30328172111106
Percentage of NetInvestmentHedgeDerivativeAssetsAtFairValue100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueByMeasurementFrequency, us-gaap:ValuationTechnique

us-gaap:FairValueMeasurementsRecurring, us-gaap:MarketApproachValuationTechnique



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value30328172111106
Percentage of NetInvestmentHedgeDerivativeAssetsAtFairValue100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductWarrantyAccrual



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value116116101106107103110114117111106110109951181161161078190110132869493726666686464727672757374666864606182
Percentage of ProductWarrantyAccrual100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductWarrantyAccrualClassifiedCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value6463545961566467676964676563737072705143789127353338333435333238423838343837
Percentage of ProductWarrantyAccrualClassifiedCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductWarrantyAccrualNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value525347474647454649424143443145464337304632405858603433313331313334343739352929
Percentage of ProductWarrantyAccrualNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestructuringCostAndReserve

us-gaap:RestructuringReserve

us-gaap:EmployeeSeverance



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value3334181812241826553226913142912183543464441118
Percentage of RestructuringReserve100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestructuringCostAndReserve, us-gaap:StatementBusinessSegments

us-gaap:EmployeeSeverance, bwa:Drivetrain



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value543443154422235711251016334143423980
Percentage of RestructuringReserve15.211.816.722.233.315.85.418.983.975.972.287.075.057.857.759.878.686.187.588.096.395.495.296.495.475.07.1

us-gaap:EmployeeSeverance, bwa:Engine



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value2830151482017210110024534121221127
Percentage of RestructuringReserve84.888.283.377.866.784.294.681.116.124.127.813.025.042.242.340.221.413.912.512.03.74.64.83.64.625.092.9

us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber

bwa:AdjustedEarningsPerSharePerformanceSharePlanDomain



Period End2020-03-312019-12-31
Value115000.00.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber100.00.0

bwa:RelativeRevenueGrowthPerformanceSharePlans



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-31
Value382000.0240000.0422000.0427000.0478000.0297000.0479000.0481000.0530000.0355000.0320000.00.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber332.20.00.00.00.00.00.00.00.00.00.00.0

us-gaap:PerformanceShares



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-312015-12-31
Value00000297000
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber332.20.00.00.00.00.00.00.00.0

us-gaap:RestrictedStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value11111111111111111
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber1700.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

bwa:AdjustedEarningsPerSharePerformanceSharePlanDomain



Period End2020-03-312019-12-31
Value34.110.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue100.00.0

bwa:RelativeRevenueGrowthPerformanceSharePlans



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-31
Value41.5448.5245.1145.1145.0447.0344.4344.4543.7939.4238.620.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue121.80.00.00.00.00.00.00.00.00.00.00.0

us-gaap:PerformanceShares



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-312015-12-31
Value48.0264.6157.0357.0356.9360.3532.2643.9956.55
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue140.80.00.00.00.00.00.00.00.0

us-gaap:RestrictedStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value39.8744.2644.2944.444.7742.9743.0343.2638.8644.1253.1843.5737.8658.7739.0230.5529.9
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue116.90.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:DebtInstrument

us-gaap:ShortTermBorrowings

bwa:ShortTermBorrowings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value34343331243235671876828212523115633735130328066608960147841422184143206118129151106104116778542
Percentage of ShortTermBorrowings100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShortTermDebtWeightedAverageInterestRate



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value0.0230.0250.0330.0340.0280.0430.0420.0320.0270.0310.0220.0340.0210.0230.0120.0130.020.0190.0160.0080.015
Percentage of ShortTermDebtWeightedAverageInterestRate100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-31
Value4864484445784502438543444170405440153825391636913479330137903756376136313787375135623690380038933737363234343256316131463105293427202453246524982353230922222037
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value-801-727-779-670-675-674-623-582-444-490-722-610-383-14-121-150-5314-85127
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-16.5-15.0-17.0-14.9-15.4-15.5-14.9-14.4-11.1-12.8-21.9-16.8-10.4-0.4-3.9-6.1-2.30.7-4.20.0

us-gaap:AdditionalPaidInCapital



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value110911451129111611111145112711101102111811041109111211211160113411001034977943
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest22.823.624.724.825.326.427.027.427.429.233.430.630.130.936.946.247.646.548.00.0

us-gaap:CommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value33333233322222111111
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.10.10.10.10.10.10.10.10.10.10.10.10.10.10.00.00.10.10.10.0

us-gaap:NoncontrollingInterest



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value14013812110811111910494105109837774716365513731117
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest2.92.82.62.42.52.72.52.32.62.92.52.12.02.02.02.72.21.71.50.0

us-gaap:RetainedEarnings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value60365942575755985461533651424973473645314215421037173177261121101560119312001295
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest124.1122.7125.8124.3124.5122.8123.3122.7117.9118.4127.7115.9100.787.583.086.067.553.758.90.0

us-gaap:TreasuryStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value-1623-1657-1653-1653-1626-1584-1581-1544-1486-1445-1381-1158-832-727569-707-349-57-87-46
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-33.4-34.2-36.1-36.7-37.1-36.5-37.9-38.1-37.0-37.8-41.8-31.9-22.5-20.018.1-28.8-15.1-2.6-4.30.0

Line plots across dimensions of each concept

us-gaap:Revenues us-gaap:StatementBusinessSegments


us-gaap:Assets us-gaap:StatementBusinessSegments


us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType


us-gaap:LongTermDebt us-gaap:DebtInstrument