BWA


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

Table of contents



us-gaap:CommonStockValue

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted
bwa:PerformanceBasis, us-gaap:AwardType
us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:AwardType

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
us-gaap:StatementEquityComponents

us-gaap:CostOfGoodsAndServicesSold
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome

us-gaap:GainsLossesOnExtinguishmentOfDebt

us-gaap:GrossProfit

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeTaxExpenseBenefit
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:IncomeTaxesPaidNet

us-gaap:InterestAndDebtExpense

us-gaap:InterestPaidNet

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest
us-gaap:StatementEquityComponents

us-gaap:OperatingIncomeLoss

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax

us-gaap:ProfitLoss

us-gaap:ResearchAndDevelopmentExpense

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

us-gaap:Revenues

us-gaap:SellingGeneralAndAdministrativeExpense
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome

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

us-gaap:Liabilities

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity

us-gaap:AssetsCurrent

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:ReceivablesNetCurrent

us-gaap:InventoryNet
us-gaap:StatementGeographical

us-gaap:InventoryFinishedGoods

us-gaap:InventoryLIFOReserve

us-gaap:InventoryRawMaterialsAndSupplies

us-gaap:OtherAssetsCurrent

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:NoncurrentAssets
us-gaap:StatementGeographical
us-gaap:PropertyPlantAndEquipmentByType
us-gaap:PropertyPlantAndEquipmentGross

us-gaap:LongTermInvestments

us-gaap:Goodwill
us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:FiniteLivedIntangibleAssetsNet
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:DeferredTaxAssetsLiabilitiesNet

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OtherAssetsNoncurrent

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent

us-gaap:AccruedIncomeTaxesCurrent

us-gaap:ContractWithCustomerLiabilityCurrent
us-gaap:BalanceSheetLocation

us-gaap:DividendsPayableCurrent

us-gaap:LiabilitiesCurrent

us-gaap:LongTermDebtCurrent

us-gaap:NotesPayableCurrent

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OtherLiabilitiesCurrent

us-gaap:LongTermDebt
us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:LongTermDebtNoncurrent

us-gaap:LongTermDebtAndCapitalLeaseObligations

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:RetirementPlanType

us-gaap:MinorityInterest

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:OperatingLeaseLiability

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:StockholdersEquity

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapital

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:TreasuryStockValue

us-gaap:MinorityInterest

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:IncreaseDecreaseInInventories

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:ProfitLoss

us-gaap:ShareBasedCompensation
us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquireProductiveAssets

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:ProceedsFromIssuanceOfLongTermDebt

us-gaap:RepaymentsOfLongTermDebt
us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:EffectiveIncomeTaxRateContinuingOperations
bwa:PerformanceBasis, us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
us-gaap:AwardType

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxAssetsNet

us-gaap:UnrecognizedTaxBenefits
us-gaap:BalanceSheetLocation

us-gaap:DeferredTaxAssetsValuationAllowance

bwa:AdjustedEbit
us-gaap:StatementBusinessSegments
us-gaap:BusinessAcquisition
bwa:AmortizationOfInventoryFairValue
us-gaap:BusinessAcquisition
bwa:BusinessCombinationNetStockCompensationConsiderationTransferred
us-gaap:BusinessAcquisition
bwa:BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentAccountsPayable
us-gaap:BusinessAcquisition
bwa:BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentAssets
us-gaap:BusinessAcquisition
bwa:BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentNetAssetsAndNonControllingInterests
us-gaap:BusinessAcquisition
bwa:BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentNetLiabilitiesAssumed
us-gaap:BusinessAcquisition
bwa:BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOther
us-gaap:BusinessAcquisition
bwa:BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherCurrentLiabilities
us-gaap:BusinessAcquisition
bwa:BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherNonCurrentAssets
us-gaap:BusinessAcquisition
bwa:BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentPrepaymentsAndOtherCurrentAssets
us-gaap:BusinessAcquisition
bwa:BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentReceivablesNet

bwa:BusinessCombinationStockCompensationConsiderationTransferred
us-gaap:BusinessAcquisition

bwa:CapitalExpendituresForDamageToPropertyPlantAndEquipment

bwa:DefinedPensionContribution

bwa:EquityInAffiliatesEarningsNetOfDividendsReceivedAndOther

bwa:GainLossOnInsuranceProceedsReceivedForPropertyDamage

bwa:GainLossOnInsuranceProceedsReceivedForPropertyDamageNet

bwa:GrossResearchAndDevelopmentExpenditures

bwa:InsuranceDeductibleExpense

bwa:MergerAcquisitionAndDivestitureExpense

bwa:OtherNoncashAdjustments

bwa:PaymentsForInvestmentsInEquitySecurities
us-gaap:BusinessAcquisition
bwa:PaymentsToAcquireBusinessesNetOfCashAcquiredRepaymentOfDebt

bwa:ProceedsFromAssetDisposalAndOtherNet

bwa:ProceedsFromInsuranceSettlement

bwa:ResearchAndDevelopmentCustomerReimbursements

bwa:RestructuringCostsNetOfCashPaid

bwa:SegmentReportingCorporateAllocation

bwa:SharesIssuedFromDilutedEarnings

bwa:UnrealizedGainOnEquityInvestments

us-gaap:AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities
us-gaap:StatementEquityComponents
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions

us-gaap:AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities

us-gaap:AssetImpairmentCharges

us-gaap:BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued
us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationConsiderationTransferred1
us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable
us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentInventory
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentPropertyPlantAndEquipment

us-gaap:CapitalExpendituresIncurredButNotYetPaid

us-gaap:CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths
us-gaap:DerivativeInstrumentRisk
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed
us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
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:DefinedBenefitPlanContributionsByEmployer
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:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanServiceCost

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

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:GainLossOnDispositionOfAssets1

us-gaap:GoodwillForeignCurrencyTranslationGainLoss
us-gaap:StatementBusinessSegments

us-gaap:GoodwillPurchaseAccountingAdjustments
us-gaap:BusinessAcquisition
us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments
us-gaap:ImpairmentOfLongLivedAssetsToBeDisposedOf

us-gaap:IncomeLossFromEquityMethodInvestments

us-gaap:IncomeTaxExpenseBenefitContinuingOperationsAdjustmentOfDeferredTaxAssetLiability

us-gaap:IncomeTaxReconciliationNondeductibleExpenseRestructuringCharges

us-gaap:IncomeTaxReconciliationOtherAdjustments

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInAccruedIncomeTaxesPayable

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:IncreaseDecreaseInReceivables

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:InterestCostsCapitalized

us-gaap:InvestmentIncomeInterest

us-gaap:LossContingencyDamagesSoughtValue
us-gaap:StatementEquityComponents
us-gaap:MinorityInterestDecreaseFromRedemptions

us-gaap:NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent
us-gaap:StatementEquityComponents
us-gaap:NoncontrollingInterestIncreaseFromBusinessCombination

us-gaap:OciBeforeReclassificationsBeforeTaxAttributableToParent
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax
us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeInstrumentRisk
us-gaap:OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAfterAdjustmentsAndTaxParent
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:OtherComprehensiveIncomeLocation
us-gaap:OtherComprehensiveIncomeLossNetInvestmentHedgeGainLossBeforeReclassificationAndTax

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
us-gaap:StatementEquityComponents

us-gaap:OtherOperatingIncome

us-gaap:OtherOperatingIncomeExpenseNet

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

us-gaap:PaymentsOfDebtIssuanceCosts

us-gaap:PaymentsOfDividendsMinorityInterest

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired
us-gaap:BusinessAcquisition

us-gaap:ProceedsFromHedgeInvestingActivities

us-gaap:ProceedsFromInsuranceSettlementInvestingActivities

us-gaap:ProceedsFromMinorityShareholders

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProceedsFromRepaymentsOfNotesPayable

us-gaap:ProductWarrantyAccrualPayments

us-gaap:ProductWarrantyAccrualPreexistingIncreaseDecrease

us-gaap:ProductWarrantyAccrualWarrantiesIssued

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax
us-gaap:StatementEquityComponents

us-gaap:ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent
us-gaap:StatementEquityComponents
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:RepaymentsOfDebt

us-gaap:RepaymentsOfShortTermDebt
us-gaap:AwardType
us-gaap:RestrictedStockExpense
us-gaap:StatementBusinessSegments
us-gaap:RestructuringAndRelatedCostNumberOfPositionsEliminated

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

us-gaap:RestructuringCosts
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:RestructuringCostAndReserve
us-gaap:ConsolidationItems, us-gaap:RestructuringCostAndReserve, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:RestructuringCostAndReserve
us-gaap:RestructuringCostAndReserve, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments
bwa:PerformanceBasis, us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod
us-gaap:AwardType
bwa:PerformanceBasis, us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue
us-gaap:AwardType
bwa:PerformanceBasis, us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue
us-gaap:AwardType, us-gaap:Vesting
us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage

us-gaap:StandardAndExtendedProductWarrantyAccrualForeignCurrencyTranslationGainLoss
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodValueEmployeeStockPurchasePlan
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures

us-gaap:TaxAdjustmentsSettlementsAndUnusualProvisions

us-gaap:UnrealizedGainLossOnInvestments
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense

bwa:AccruedFreight

bwa:Accumulatedothercomprehensiveincomelosscumulativechangesinnetgainlossfromhedgesbeforetax
us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
bwa:Derecognitionofsubsidiary
bwa:Asbestosrelatedandenvironmentalliabilitiestransferredtothirdparty
us-gaap:BusinessAcquisition
bwa:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaymentsAndOtherCurrentAssets
us-gaap:BusinessAcquisition
bwa:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesNotesPayableAndOtherShortTermDebt
us-gaap:BusinessAcquisition
bwa:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRestrictedCash

bwa:CustomerIncentivePayments
us-gaap:BalanceSheetLocation

bwa:CustomerIncentivePaymentsCurrent
us-gaap:BalanceSheetLocation

bwa:CustomerRelatedLiability

bwa:DebtDifferenceBetweenFairValueAndCarryingValue
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
bwa:DebtInstrumentRedemptionPriceRedeemablePrincipalAmount
us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

bwa:Debtdifferencebetweenfairvalueandcarryingvalue

bwa:DeferredTaxAssetsInterestLimitationCarryforwards

bwa:DeferredTaxAssetsTaxCreditCarryforwardState

bwa:DeferredTaxAssetsUnrecognizedTaxBenefits

bwa:DeferredTaxLiabilitiesFixedAssets

bwa:DeferredTaxLiabilitiesUnrealizedGainLossOnEquitySecurities

bwa:DeferredTaxLiabilityNotReportedUndistributedEarningsOfForeignSubsidiaries

bwa:DefinedBenefitPlanEstimatedFutureEmployerContributionsInNextFiscalYearUnderContractualObligation

bwa:EmployeeTerminationBenefits
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
bwa:EquityMethodInvestmentIncreaseDecreaseInOwnershipPercentage
bwa:Derecognitionofsubsidiary
bwa:Investmentsandotherlongtermreceivablestransferredtothirdparty

bwa:MaximumLineOfCreditPotentialAdditionalIncrease

bwa:OtherLongTermReceivables

bwa:OtherNonCurrentAssets
bwa:Derecognitionofsubsidiary
bwa:Othernoncurrentassetstransferredtothirdparty
bwa:ScheduleOfEquityMethodInvestmentsAndEquityMethodInvesteeName
bwa:OwnershipPercentageInInvestee
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
bwa:OwnershipPercentageinInvestee

bwa:PerformanceSharesExcludedFromDilutedEarningsPerShare

bwa:PrepaidEngineering

bwa:Principalpaymentslessunamortizeddiscounts

bwa:PropertyPlantAndEquipmentNetOfAccumulatedDepreciationBeforeTooling
bwa:Derecognitionofsubsidiary
bwa:Receivablesnettransferredtothirdparty

bwa:ToolingNetOfAmortization

bwa:TotalLeaseAssets

bwa:TotalLeaseLiabilities

bwa:Totaldebtprincipalpayments

us-gaap:AccountsPayableCurrentAndNoncurrent

us-gaap:AccountsReceivableGross

us-gaap:AccrualForEnvironmentalLossContingencies

us-gaap:AccruedInsuranceCurrent

us-gaap:AdvancesToAffiliate

us-gaap:AllowanceForDoubtfulAccountsReceivable
us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType
us-gaap:BusinessAcquisitionEquityInterestIssuedOrIssuableValueAssigned
us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisitionPercentageOfVotingInterestsAcquired
us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisitionPreacquisitionContingencyAmountOfSettlement
us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisitionSharePrice

us-gaap:BusinessCombinationAcquiredReceivablesEstimatedUncollectible

us-gaap:BusinessCombinationAcquiredReceivablesGrossContractualAmount
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationAcquisitionOfLessThan100PercentNoncontrollingInterestFairValue
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFinancialLiabilities
us-gaap:BusinessAcquisition, us-gaap:LongtermDebtType
us-gaap:BusinessAcquisition, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIndefiniteLivedIntangibleAssets
us-gaap:BusinessAcquisition, us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles
us-gaap:BusinessAcquisition, us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedLessNoncontrollingInterest

us-gaap:ContractWithCustomerAssetNet

us-gaap:ContractWithCustomerAssetNetCurrent

us-gaap:ContractWithCustomerLiabilityNoncurrent
us-gaap:BalanceSheetLocation

us-gaap:ContractWithCustomerReceivableAfterAllowanceForCreditLoss

us-gaap:ContractWithCustomerReceivableAfterAllowanceForCreditLossNoncurrent

us-gaap:ContractWithCustomerReceivableBeforeAllowanceForCreditLoss
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentFaceAmount
us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
us-gaap:LongtermDebtType
us-gaap:ShortTermDebtType, us-gaap:SubsequentEventType

us-gaap:DebtInstrumentFairValue
us-gaap:FairValueByMeasurementBasis

us-gaap:DebtInstrumentUnamortizedDiscount

us-gaap:DebtWeightedAverageInterestRate

us-gaap:DeferredIncomeNoncurrent

us-gaap:DeferredIncomeTaxAssetsNet

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards
us-gaap:IncomeTaxAuthority
us-gaap:IncomeTaxAuthority
us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsNotSubjectToExpiration

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal
us-gaap:IncomeTaxAuthority
us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsOtherComprehensiveLoss

us-gaap:DeferredTaxAssetsTaxCreditCarryforwardsForeign
us-gaap:IncomeTaxAuthority
us-gaap:DeferredTaxAssetsTaxCreditCarryforwardsOther

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation

us-gaap:DeferredTaxAssetsTaxDeferredExpenseOther

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsWarrantyReserves

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssets

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesUndistributedForeignEarnings

us-gaap:DeferredTaxLiabilityNotRecognizedAmountOfUnrecognizedDeferredTaxLiabilityUndistributedEarningsOfForeignSubsidiaries
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent
us-gaap:RetirementPlanSponsorLocation
us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanBenefitObligation
us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedAmortizationOfGainLossNextFiscalYear
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedAmortizationOfPriorServiceCostCreditNextFiscalYear
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo
us-gaap:RetirementPlanType
us-gaap:Range
us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsCurrentFiscalYear
us-gaap:Range
us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear

us-gaap:DefinedBenefitPlanFundedStatusOfPlan
us-gaap:RetirementPlanSponsorLocation
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanHealthCareCostTrendRateAssumedNextFiscalYear

us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation

us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets

us-gaap:DefinedBenefitPlanUltimateHealthCareCostTrendRate1
us-gaap:DefinedBenefitPlanByPlanAssetCategories, us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanWeightedAverageAssetAllocations
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation
us-gaap:DerivativeFairValueOfDerivativeAsset
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation
us-gaap:DerivativeFairValueOfDerivativeLiability
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation

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

us-gaap:EmployeeRelatedLiabilitiesCurrent
us-gaap:AwardType
us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions
us-gaap:BusinessAcquisition
us-gaap:EquityIssuedInBusinessCombinationFairValueDisclosure

us-gaap:EquityMethodInvestments
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:ValuationTechnique
us-gaap:EquitySecuritiesFvNiCost
us-gaap:FairValueByMeasurementFrequency, us-gaap:ValuationTechnique

us-gaap:FIFOInventoryAmount

us-gaap:FinanceLeaseLiability

us-gaap:FinanceLeaseLiabilityCurrent

us-gaap:FinanceLeaseLiabilityNoncurrent

us-gaap:FinanceLeaseLiabilityPaymentsDue

us-gaap:FinanceLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount

us-gaap:FinanceLeaseRightOfUseAsset

us-gaap:FinanceLeaseRightOfUseAssetBeforeAccumulatedAmortization

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:FiniteLivedIntangibleAssetsGross
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
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:GoodwillGross
us-gaap:StatementBusinessSegments

us-gaap:GoodwillImpairedAccumulatedImpairmentLoss
us-gaap:StatementBusinessSegments
us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass
us-gaap:IndefiniteLivedTradeNames

us-gaap:IntangibleAssetsGrossExcludingGoodwill

us-gaap:InterestPayableCurrent

us-gaap:InventoryWorkInProcess

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LettersOfCreditOutstandingAmount

us-gaap:LiabilitiesOtherThanLongtermDebtNoncurrent

us-gaap:LiabilityForUncertainTaxPositionsNoncurrent

us-gaap:LongTermDebtAndCapitalLeaseObligationsCurrent

us-gaap:LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo

us-gaap:LongTermInvestmentsAndReceivablesNet
us-gaap:Ownership
us-gaap:MinorityInterestOwnershipPercentageByNoncontrollingOwners
us-gaap:Ownership, us-gaap:SubsequentEventType
us-gaap:Ownership
us-gaap:MinorityInterestOwnershipPercentageByParent
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:ValuationTechnique
us-gaap:NetInvestmentHedgeDerivativeAssetsAtFairValue
us-gaap:FairValueByMeasurementFrequency, us-gaap:ValuationTechnique
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:ValuationTechnique
us-gaap:NetInvestmentHedgeDerivativeLiabilitiesAtFairValue
us-gaap:FairValueByMeasurementFrequency, us-gaap:ValuationTechnique

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

us-gaap:OtherAccountsPayableAndAccruedLiabilities

us-gaap:OtherAccruedLiabilitiesNoncurrent

us-gaap:OtherEmployeeRelatedLiabilitiesCurrent

us-gaap:OtherReceivables
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent
us-gaap:RetirementPlanType

us-gaap:PostemploymentBenefitsLiabilityCurrent

us-gaap:PrepaidExpenseCurrent

us-gaap:PrepaidTaxes

us-gaap:ProductWarrantyAccrual

us-gaap:ProductWarrantyAccrualClassifiedCurrent

us-gaap:ProductWarrantyAccrualNoncurrent

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization

us-gaap:RestrictedCash

us-gaap:RestructuringAndRelatedCostExpectedCost1

us-gaap:RestructuringReserve
us-gaap:RestructuringCostAndReserve
us-gaap:RestructuringCostAndReserve, us-gaap:StatementBusinessSegments

us-gaap:RestructuringReserveCurrent
us-gaap:RestructuringCostAndReserve

us-gaap:RestructuringReserveNoncurrent
us-gaap:RestructuringCostAndReserve

us-gaap:SalesAndExciseTaxPayableCurrentAndNoncurrent
us-gaap:BusinessAcquisition, us-gaap:LongtermDebtType
us-gaap:SeniorNotes
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
bwa:PerformanceBasis, us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
us-gaap:AwardType
bwa:PerformanceBasis, us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant

us-gaap:ShortTermBorrowings
us-gaap:DebtInstrument

us-gaap:ShortTermDebtWeightedAverageInterestRate
us-gaap:IncomeTaxAuthority
us-gaap:TaxCreditCarryforwardValuationAllowance

us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate

us-gaap:ValueAddedTaxReceivable

Plots across concepts


IncomeStatement
Net Income Loss
Expenses
Income Tax Expense Benefit
Balance Sheet
Operating Lease Right Of Use Asset
Assets
Operating Lease Right Of Use Asset
Current Assets
Other Assets Current
NonCurrent Assets
Operating Lease Right Of Use Asset
Liabilities
Operating Lease Liability
Current Liabilities
Long Term Debt Current
Noncurrent Liabilities
Operating Lease Liability Noncurrent
Stockholders Equity
Accumulated Other Comprehensive Income Loss Net Of Tax
CashFlow
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInOperatingActivities
Increase Decrease In Prepaid Deferred Expense And Other Assets
NetCashProvidedByUsedInInvestingActivities
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInFinancingActivities
Proceeds From Payments For Other Financing Activities
Shares
Weighted Average Number Of Shares Outstanding Basic
OperatingLeaseLiability
Operating Lease Liability Current
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Undiscounted Excess Amount
FiniteLivedIntangibleAssets
Finite Lived Intangible Assets Accumulated Amortization
InventoryNet
Inventory Finished Goods

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:CommonStockValue ██████████▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▁▁▁▁▁▁▁▁▁▁▁▁3.03.03.03.03.03.03.03.03.03.02.52.52.52.52.52.52.52.52.52.52.52.52.52.52.52.52.52.52.52.52.51.21.21.21.21.21.21.21.21.21.21.21.2NANANA1.2NANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding █▁239.6238.4NA207.3206.0206.2NA206.3206.8207.1NA208.738209.857210.766NA211.013211.478212.236NA213.766216.663218.137NA225.991226.615227.088NA228.668229.67229.327NA115.238116.101116.565NA118.499121.473127.742NA127.94128.142130.224NA127.804129.078129.663NANANANA
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic █▁238.2237.7NA206.0206.0205.7NA205.3205.7206.5NA207.471208.57209.475NA209.803210.572211.596NA212.872215.735217.388NA224.837225.353225.796NA227.077227.678227.43NA113.819114.748115.186NA114.299112.139108.42NA108.779108.761110.634NA112.757115.362116.375NANANANA
 us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities us-gaap:PerformanceShares0.778962NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:EarningsPerShareBasic ▇▅█▅▃▆▇▆▆▆▇▆▇▇▃▆▇▆▁▅▆▆▅▆▆▆▆▆▆▆▆██▇▇▆▇█▇▇█▇▆▆▆▆▅▅▃▄1.030.271.66000000000000010.54-0.470.631.070.940.840.771.110.981.31.07-0.70.881.010.89-1.390.390.760.750.570.70.660.790.620.730.840.70.621.471.521.231.050.881.081.461.121.31.491.131.00.950.720.650.450.15-0.31-0.06
us-gaap:EarningsPerShareDiluted ▇▅█▅▃▆▇▆▆▆▇▆▇▇▃▆▇▆▁▅▆▆▅▆▆▆▆▆▆▆▆██▇▇▆▇▇▇▇▇▇▆▆▆▆▅▅▃▄1.030.271.650.53-0.470.631.060.940.830.771.10.981.31.07-0.70.881.00.89-1.390.390.760.750.560.70.650.790.610.730.830.690.621.451.51.221.030.851.01.281.01.151.311.00.890.870.680.630.450.15-0.31-0.06
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
 us-gaap:AllocatedShareBasedCompensationExpense bwa:PerformanceBasis,us-gaap:AwardType bwa:AdjustedEarningsPerShareUnitsMetric,us-gaap:PerformanceSharesNANANA0.01.0NANANA0.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:AllocatedShareBasedCompensationExpense bwa:PerformanceBasis,us-gaap:AwardType bwa:RelativeGrowthUnitMetric,us-gaap:PerformanceSharesNANANA4.0-3.0NANA3.01.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:AllocatedShareBasedCompensationExpense bwa:PerformanceBasis,us-gaap:AwardType bwa:TotalStockholderReturnUnitsMetric,us-gaap:PerformanceSharesNANANA1.02.0NANA2.00.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:AllocatedShareBasedCompensationExpense us-gaap:AwardType us-gaap:PerformanceSharesNANANA5.00.01.00.02.01.03.03.43.40.51.72.32.22.33.16.70.24.23.02.87.42.9NANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ComprehensiveIncomeNetOfTax ▇▄█▆▄▅▇▅▆▆▆▆▆▇▄▆▇▆▁▅▅▆▅▅▆▄▄▄▆▆▆▇▆▅▅▆▅▆▅▄▆▆▅▇▄▅310.0-20.0437.0168.0-84.055.0272.085.0177.0159.0179.1162.2134.5284.8-90.5245.6279.8237.1-444.4106.1111.4233.586.7120.2225.5-54.4-47.7-14.7188.4156.3220.1263.6175.572.9121.9164.432.0214.956.2-9.3196.8209.397.6260.6-50.11.1NANANANA
us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest ▇▄█▆▄▅▇▅▆▆▆▆▅▇▄▆▆▆▁▅▅▆▅▅▆▄▄▄▆▆▆▆▆▅▅▆▅▆▅▄▆▆▅▆▄▄337.04.0481.0192.0-70.060.0294.093.0184.0171.0195.3171.9140.5298.9-40.2246.7279.2241.1-451.8108.3109.9235.196.2116.4224.8-54.3-43.2-16.5190.7155.2218.0266.3174.474.1120.5163.132.8214.056.8-5.2195.5207.994.9260.5-46.10.0NANANANA
us-gaap:CostOfGoodsAndServicesSold ▇██▄▁▃▄▄▄▄▄▄▄▄▄▃▃▃2996.03191.03154.02017.01252.01832.02014.01968.02038.02047.02030.01962.92114.82192.52021.61894.61876.81890.7NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:GainsLossesOnExtinguishmentOfDebt 20.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:GrossProfit ▇██▅▂▄▅▅▅▅▅▅▆▆▆▅▅▅▅▅▅▅▄▄▄▄▄▄▅▄▄▄▄▄▄▄▄▄▄▄▄▃▃▃▃▃▂▂▁▁762.0818.0772.0517.0174.0447.0545.0524.0513.0519.0542.8515.6579.2591.8565.9522.7514.2517.3501.0471.1496.7464.3446.9398.2429.0429.0413.3424.5472.8445.8406.6379.6396.6374.7344.2343.7383.2395.8359.7350.8357.1342.8306.1273.3275.4238.5213.2151.8116.279.6
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest ▆▅█▆▃▅▇▆▆▆▆▆▆▆▅▆▆▆▁▅▆▆▅▆▆▆▅▆▆▆▅▆▆▅▅▅▅▆302.0136.0596.0272.0-90.0186.0475.0273.0255.0262.0266.8282.7314.7331.7206.4274.0297.3285.9-464.6141.9259.6253.6196.6232.8237.6259.8214.7244.9285.2235.3193.9229.2246.7199.5175.0170.1194.7221.2NANANANANANANANANANANANA
us-gaap:IncomeTaxExpenseBenefit ▄▄▆▅▃▄▇▄▄▅▄▄▄▅█▅▄▅▁▄▅▅▄▄▅▄▄▄▅▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▃▃▃28.042.0211.0143.0-6.049.0238.066.073.091.019.266.830.494.9338.479.476.286.3-183.148.884.280.461.266.980.272.167.371.985.368.144.556.366.650.948.464.268.557.558.246.449.840.930.64.226.020.95.71.5-19.1-6.6
us-gaap:IncomeTaxesPaidNet █▆▇▂▃▃▇▄▂▅▄▆█▆▄▅▅▆▄▇▄▆▄▄▂▄▄▄▄▅▄▄▄▇▃▃▃▄▄▃▂▄▃▂▁▁110.075.095.027.040.043.095.059.021.068.049.080.8105.780.259.967.973.578.554.4102.459.384.455.852.225.850.052.452.552.072.855.354.848.394.536.934.739.947.458.938.629.248.837.820.010.814.5NANANANA
us-gaap:InterestAndDebtExpense █▄▄▄▃▂▂▃▃▃▃▃▃▃▃▃▃▃▄▄▄▄▃▃▃▂▂▂▂▂▁▂▂▂▁▁▂▃▃▄▄▄▄▄▃▃▃▃▂▄42.021.023.020.018.012.012.015.014.014.013.314.414.916.116.917.618.018.019.522.421.421.317.815.017.610.010.29.09.08.27.68.18.89.76.75.012.615.117.218.520.518.422.018.414.214.216.113.09.019.1
us-gaap:InterestPaidNet ▆▅█▅▁▆▃▅▂▅▄▆▂▆▄▆▂▆▅▆▃▆▃▆▃▃▃▃▂▄▃▃▃▃▃▃▄▃▄▃▅▃▄▂▄▂29.025.044.024.00.029.014.025.07.026.016.628.38.130.619.931.88.431.926.828.715.529.314.431.012.012.811.912.37.218.112.812.712.612.312.312.818.713.219.312.923.712.618.99.219.26.1NANANANA
us-gaap:NetIncomeLoss ▇▅█▅▃▆▇▆▆▆▇▆▇▇▃▆▆▆▁▅▆▆▅▆▆▆▆▆▆▆▆▆▆▆▅▅▅▆▅▆▆▅▅▅▅▅▅▄▄▄247.065.0358.0111.0-98.0129.0220.0194.0172.0160.0230.0203.8271.8225.1-146.2184.9212.0189.2-293.383.3164.4164.1125.3157.4148.1178.9139.9166.6190.2159.1141.4166.8174.1142.0121.2101.1120.6158.0122.0141.6162.0124.5111.7106.782.876.252.717.2-35.9-7.0
us-gaap:NetIncomeLossAttributableToNoncontrollingInterest ███▅▄▃▅▄▃▄▅▄▄▄▄▃▃▃▄▃▄▃▃▃▃▃▃▂▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁27.029.027.018.014.08.017.013.010.011.017.612.112.511.714.29.79.110.411.89.811.09.110.18.59.38.87.56.49.78.18.06.16.06.65.44.85.65.75.25.15.34.93.94.84.95.23.92.82.00.7
us-gaap:OperatingIncomeLoss ▇▇▆▇▄▆█▆▇▆▆▇▇▇▆▆▇▇▁▆▆▆▆▆▆▆▆▆▇▆▆▆▆▆▆▆▆▆▆▆▆▆▆▅▅▅▅▅▄▄317.0403.0223.0284.0-78.0189.0478.0276.0285.0264.0265.6278.0312.8333.5209.0275.9299.5292.7-458.0150.3269.4264.2200.5237.1242.5259.6212.2237.7280.6233.2187.7225.6243.4198.5170.7163.0193.5225.7191.1198.8228.3179.3157.4123.0117.3106.667.327.5-49.55.5
us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax █▁4.0-6.0NA1.01.0-2.0NA1.0-1.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ProfitLoss ▇▅█▅▃▅▆▆▆▆▇▆▇▆▃▆▆▆▁▅▆▆▅▆▆▆▆▆▆▆▆▆▆▆▅▅▅▆▅▅▆▅▅▅▅▅▅▄▄▄274.094.0385.0129.0-84.0137.0237.0207.0182.0171.0247.6215.9284.3236.8-132.0194.6221.1199.6-281.593.1175.4173.2135.4165.9157.4187.7147.4173.0199.9167.2149.4172.9180.1148.6126.6105.9126.2163.7127.2146.7167.3129.4115.6111.587.781.456.620.0-33.9-6.3
us-gaap:ResearchAndDevelopmentExpense ▇██▄▃▄▄▄▅▄▄▄▄▅▄▄▄▄▃▃▃▃▃▃▃▃▃▃▃▃▃▂▃▂▂▂▂▂▂▂▂▂▁▁▁▁166.0183.0179.0100.088.0109.094.0102.0113.0104.0103.0108.0112.4116.7104.7101.5104.996.484.388.685.085.376.775.280.175.478.885.390.182.087.071.872.671.867.264.466.667.759.658.464.761.050.845.846.142.3NANANANA
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax ▇██▅▂▄▅▅▅▅▅▅▅▅▅▅▄▄▄▄▄▄▄▃▄▄▄▄▄▄▃▃▃▃▃▃▃▃▃▃▃▃▃▂▂▂▂▁▁▁3758.04009.03926.02534.01426.02279.02559.02492.02551.02566.02572.82478.52694.02784.32586.42416.22389.72407.02259.02214.22329.22268.62123.11884.02031.91984.21991.92032.12197.02084.11885.41806.21893.91851.11719.11695.21856.41912.51773.71791.81818.81730.41533.41410.91421.71286.81198.31027.8916.2819.5
us-gaap:Revenues ▇██▅▂▄▅▅▅▅▅▅▅▅▅▅▄▄▄▄▄▄▄▃▄▄▄▄▄▄▃▃▃▃▃▃▃▃▃▃▃▃▃▂▂▂▂▁▁▁3758.04009.03926.02534.01426.02279.02559.02492.02551.02566.02572.82478.52694.02784.32586.42416.22389.72407.02259.02214.22329.22268.62123.11884.02031.91984.21991.92032.12197.02084.11885.41806.21893.91851.11719.11695.21856.41912.51773.71791.81818.81730.41533.41410.91421.71286.81198.31027.8916.2819.5
us-gaap:SellingGeneralAndAdministrativeExpense ██▇▃▃▃▃▄▃▄▄▄▄▄▄▄▃▄▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▂▂▂▂▂▁▁364.0377.0350.0204.0184.0213.0205.0230.0212.0226.0225.8230.5236.0253.4239.9224.8215.0218.8217.1209.7202.3188.4178.4148.0167.4168.2169.4174.5181.2173.8167.1157.7155.6159.3156.2151.0153.1169.0146.8151.4157.7165.1148.3150.2137.8130.3NANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:Assets █▇▇▄▄▃▄▄▄▄▄▄▄▄▄▄▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁16863.015971.016029.010892.010337.09502.09702.010199.010231.010104.010095.39716.49777.210034.89787.69816.29288.59083.78834.79007.38988.68940.78841.57687.17766.37522.67228.07282.37457.07357.86917.06964.36705.46528.96400.86346.56220.76281.35958.66094.36226.06007.05555.0NANANA4811.4NANANA
us-gaap:Liabilities 9841.0NA9305.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LiabilitiesAndStockholdersEquity █▇▇▄▄▃▄▄▄▄▄▄▄▄▄▄▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁16863.015971.016029.010892.010337.09502.09702.010199.010231.010104.010095.39716.49777.210034.89787.69816.29288.59083.78834.79007.38988.68940.78841.57687.17766.37522.67228.07282.37457.07357.86917.06964.36705.46528.96400.86346.56220.76281.35958.66094.36226.06007.05555.0NANANA4811.4NANANA
us-gaap:StockholdersEquity ███▅▅▅▅▅▄▄▄▄▄▄▃▃▃▃▃▃▃▃▃▃▃▃▃▃▄▃▃▃▂▂▂▂▂▂▁▁▁▁▁6649.06367.06428.04757.04611.04724.04706.04457.04394.04274.04225.54066.43960.33910.73716.83825.73612.03403.43218.33709.93681.73693.23553.73717.03686.73504.03616.23730.63828.83683.53560.63367.33195.13106.13082.63044.82873.72658.02387.92405.52430.92306.42258.6NANANA2185.3NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:AssetsCurrent ██▇▆▅▄▄▄▄▄▄▃▃▄▃▃▃▃▂▃▃▃▃▃▃▃▂▂▃▂▂▂▂▂▂▂▂▂▁▁▁▁▁6537.06582.06167.05165.04641.03741.03836.03987.03849.03719.03804.63490.63543.73697.83543.23401.13193.23107.32911.63289.23206.93182.43135.33301.03401.43325.42970.82951.83037.33021.32798.52906.22736.92601.52472.82493.62420.52410.02137.82267.72305.72153.72059.9NANANA1551.8NANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue ▆▇▆██▄▃▄▃▂▃▂▂▂▂▂▂▂▂▂▂▂▂▄▄▄▃▃▃▃▄▄▃▃▃▃▂▂▂▂▂▁▂▂▁▂▂1553.01755.01650.02121.02003.0901.0832.0916.0710.0494.0739.4361.8361.9409.7545.3414.3387.1358.4443.7518.7495.0392.3577.71033.31107.91035.5797.8782.8771.4808.1939.5920.4817.0695.4715.7621.5481.9396.9359.6377.0372.4222.9449.9432.2187.5374.1357.4NANANA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents ▆▇▆██▃▃▃▂▂▃▁▁▁▂1568.01755.01650.02121.02003.0901.0832.0916.0710.0517.0739.0362.0362.0410.0545.0NANANA444.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ReceivablesNetCurrent ██▇▄▃▃▄▄▄▄▄▄▅▅▄▄▄▄▃▃▄▄▃▃▃▃▂▂▃▃▂▂▂▂▁▂▂▂▂▂▂▂▁3063.03153.02919.01977.01535.01735.01921.01983.02063.02065.01987.42061.12131.02247.12018.92046.11939.31934.31689.31764.01806.91861.21665.01551.51573.01564.71443.51466.11571.71546.11248.51347.51339.71318.41147.31261.41327.71369.41183.01237.91269.91278.41023.9NANANA732.0NANANA
us-gaap:InventoryNet █▇▆▃▃▄▃▃▃▃▃▃▃▃▃▃▃▂▂▃▃▃▃▂▂▁▁▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁1567.01361.01286.0815.0836.0847.0807.0810.0817.0807.0780.8810.3800.2800.4766.3773.4701.4656.9641.2687.2744.6756.3723.6523.1525.7506.3505.7531.8528.0516.9458.1454.7439.2449.5447.6475.3472.7480.8454.3482.4495.5490.7430.6NANANA314.3NANANA
us-gaap:InventoryFinishedGoods █▇▆▃▃▄▃▃▃▄▃▃▃▃▃▃▃▃▃▃▄▄▄▁▂▁▁▂▂▁▁▁▁▁▁▂▂▂▁▁▁▁▁396.0342.0324.0186.0175.0211.0207.0195.0198.0213.0198.9190.7187.5197.1183.0207.4171.0171.8174.9191.8212.0223.6222.4125.3130.9119.3115.5136.5128.2123.7116.3106.1112.5113.4117.6131.9128.2131.2124.3120.2120.8122.7111.7NANANA68.8NANANA
us-gaap:InventoryLIFOReserve █▄▂▂▂▂▂▂▄▄▃▂▁▁▁▂▂▂▂▁▁▂▂▄▄▄▄▄▃▄▃▂▂▃▃▄▄▄▂▄▂▂▁24.018.015.015.014.014.015.014.018.018.016.715.113.713.713.114.814.514.415.213.713.514.414.217.918.417.818.318.216.817.316.015.414.316.416.018.318.517.315.317.014.814.213.2NANANA11.6NANANA
us-gaap:InventoryRawMaterialsAndSupplies █▇▆▄▄▄▃▃▄▃▃▃▃▃▃▃▃▂▂▂▃▃▃▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁1014.0875.0827.0529.0554.0536.0502.0515.0520.0496.0485.0512.1502.8489.9469.7454.0424.8387.6378.6397.1437.0439.0412.9327.2325.5321.7319.5322.3324.4317.1279.8284.2263.8271.8264.0276.6273.3272.0254.4283.0289.6282.2244.0NANANA187.3NANANA
us-gaap:OtherAssetsCurrent █▃▁89.078.072.0NANANA98.0NANANA82.7NANANA58.2NANANA51.9NANANA46.3NANANA40.5NANANA30.9NANANA22.0NANANA26.6NANANA23.6NANANA23.2NANANA
us-gaap:PrepaidExpenseAndOtherAssetsCurrent █▇▇▆▆▆▆▆▆▆▆▄▄▄▃▄▄▃▃▃▃▄▄▃▃▃▃▂▂▂▁▂▁▁▁▂▂▂▁▂▂339.0313.0312.0252.0267.0258.0276.0278.0259.0280.0250.0192.9185.1171.0145.4167.3165.4157.7137.4147.5160.4172.6169.0137.1145.0139.0130.2121.4113.298.783.798.382.977.567.5101.6100.793.382.490.488.6NA79.7NANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:NoncurrentAssets NANA4591.0NANANA2934.0NANANA2903.8NANANA2863.8NANANA2501.8NANANA2448.1NANANA2093.9NANANA1939.4NANANA1788.0NANANA1664.3NANANA1542.6NANANA1490.3NANANA
 us-gaap:NoncurrentAssets us-gaap:StatementGeographical bwa:OtherEuropeNANA620.0NANANA285.0NANANA452.5NANANA426.1NANANA298.2NANANA276.6NANANA258.8NANANA257.6NANANA225.8NANANA194.6NANANA173.7NANANA138.1NANANA
 us-gaap:NoncurrentAssets us-gaap:StatementGeographical bwa:OtherForeignNANA208.0NANANA152.0NANANA150.8NANANA157.3NANANA143.5NANANA261.9NANANA233.8NANANA205.1NANANA187.0NANANA164.1NANANA139.1NANANA116.3NANANA
 us-gaap:NoncurrentAssets us-gaap:StatementGeographical country:CNNANA1055.0NANANA605.0NANANA589.3NANANA554.8NANANA384.6NANANA355.8NANANA299.9NANANA238.5NANANA184.3NANANA148.0NANANA104.9NANANA66.1NANANA
 us-gaap:NoncurrentAssets us-gaap:StatementGeographical country:DENANA338.0NANANA328.0NANANA371.1NANANA413.4NANANA370.3NANANA380.9NANANA413.6NANANA430.0NANANA432.2NANANA420.4NANANA447.5NANANA500.0NANANA
 us-gaap:NoncurrentAssets us-gaap:StatementGeographical country:GBNANA229.0NANANA56.0NANANA53.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:NoncurrentAssets us-gaap:StatementGeographical country:HUNANA184.0NANANA164.0NANANA153.0NANANA147.5NANANA122.2NANANA112.4NANANA73.2NANANA66.9NANANA64.3NANANA56.9NANANA53.0NANANA58.4NANANA
 us-gaap:NoncurrentAssets us-gaap:StatementGeographical country:KRNANA301.0NANANA221.0NANANA235.1NANANA244.2NANANA208.0NANANA218.6NANANA185.9NANANA165.2NANANA140.4NANANANANANANANANANANANANANANA
 us-gaap:NoncurrentAssets us-gaap:StatementGeographical country:MXNANA367.0NANANA247.0NANANA223.1NANANA201.2NANANA136.2NANANA132.8NANANA96.6NANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:NoncurrentAssets us-gaap:StatementGeographical country:PLNANA352.0NANANA180.0NANANA171.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:NoncurrentAssets us-gaap:StatementGeographical country:USNANA937.0NANANA752.0NANANA728.9NANANA719.3NANANA799.3NANANA800.5NANANA586.2NANANA531.7NANANA508.1NANANA492.6NANANA466.6NANANA469.4NANANA
 us-gaap:NoncurrentAssets us-gaap:StatementGeographical srt:EuropeNANA1723.0NANANA957.0NANANA976.6NANANA987.0NANANA830.2NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:ConstructionInProgressNANA432.0291.0335.0334.0360.0326.0350.0395.0425.8371.7362.3386.2410.5381.9378.5366.7338.2331.0344.7365.6386.4389.1373.7342.6310.4282.3310.7282.7272.3265.0277.4249.5243.7229.1201.4192.8206.8194.6168.0NA128.2NANANANANANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:LandAndBuildingNANA1375.0905.0863.0869.0860.0843.0870.0879.0871.0880.5892.1932.4899.2874.7838.4807.3781.6807.6806.7814.4779.9720.5772.1754.8784.8799.6786.1774.1753.9738.6687.6706.8717.2695.9691.4697.1687.9690.9714.0NA669.3NANANANANANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:MachineryAndEquipmentNANA4333.03197.03059.03056.02971.02894.02959.02889.02851.22796.92767.82816.12734.42659.92562.82472.52371.22383.32340.12303.12154.31910.81912.81863.31940.31953.31997.11970.61897.51848.01893.22262.42282.42201.62141.82084.42006.92016.82091.1NA1961.2NANANANANANANA
us-gaap:LongTermInvestments ▄▄█▁▁▁▁▆▆▅▅▅▅▅▄▄▄▄▄▄▄▃▃▃▃▃▂▃▃▃▂▂▂▂▂▂▂▂▂▂▁▁▁546.0557.0820.0305.0315.0315.0318.0694.0690.0617.0592.0610.3610.5581.8547.4559.5528.6530.0502.2512.7508.9487.7460.9438.5437.5422.5403.3460.8469.9440.2405.1402.3392.2377.5382.7380.7363.7345.6345.3354.8336.8319.5307.9NANANA257.4NANANA
us-gaap:Goodwill █▆▆▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁3325.02596.02627.01855.01830.01818.01842.01818.01845.01848.01853.41856.51858.11890.61881.81882.11734.71708.11702.21730.21767.01774.21757.71183.71184.91168.61205.71210.81243.91244.81197.01190.31172.21170.01181.41172.31161.81200.51186.21203.51240.71231.71113.5NANANA1061.4NANANA
us-gaap:IntangibleAssetsNetExcludingGoodwill █▇▇▁▁▁▁▁▁▂▂▂▂▂▂▂▂▂▂▂▂▂▃1172.01059.01096.0371.0375.0383.0402.0404.0421.0433.0439.5450.1461.9485.2492.7509.4453.8455.7463.5494.7525.3539.0543.8NANANA151.1NANANA169.5NANANA206.3NANANA243.3NANANA168.8NANANA148.6NANANA
us-gaap:FiniteLivedIntangibleAssetsNet █▁▃1006.0893.0930.0NANANA347.0NANANA384.1NANANA433.1NANANA408.7NANANA463.1NANANA132.7NANANA139.8NANANA170.1NANANA199.5NANANA124.0NANANA111.2NANANA
us-gaap:DeferredTaxAssetsLiabilitiesNet NANA15.0NANANANANANANA146.4170.9170.5NA59.8NANANA369.8NANANA93.4NANANA224.5NANANA241.1NANANA248.0NANANA245.7NANANA249.2NANANA212.7NANANA
us-gaap:OperatingLeaseRightOfUseAsset ▁█▂209.0219.0211.0NANANA85.088.095.098.00.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsNoncurrent ███▁▁▂▁▃▄▅▃▃▃▃▃▇▇██▃▃▃▃▅▅▄▄▅▅▆▅▅▅▅▅▅▅▆▆▆▆▇▄748.0728.0728.0372.0395.0406.0379.0484.0535.0592.0502.3481.1477.3455.6458.7710.4714.4729.5753.4462.0477.7458.5495.7578.7582.0556.2554.3591.5616.6623.7577.0590.1607.8614.7575.9601.2602.0628.8625.0631.1661.4678.9531.1NANANA450.5NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent NANANA2127.01654.01793.01977.02048.02089.02056.02144.32009.22122.12160.42270.32015.01904.71841.31847.31763.21790.71819.41866.41436.61528.21484.41530.31503.91622.01562.61383.81377.71359.11311.91287.21276.51279.31291.31297.81346.51362.11318.11224.1NANANA977.1NANANA
us-gaap:AccruedIncomeTaxesCurrent █▇▇▂▂▃▅▄▄▄▄▁▁▃▃▄▄▄▅▄▆▂▄▂▃▁▁▁▁▁▃▃▃▃▅▄▃▂▂▄▃▃▃124.0112.0102.023.019.045.066.058.053.057.058.99.812.444.440.863.059.654.868.661.293.824.549.428.635.39.314.213.27.69.838.543.340.742.072.555.437.028.629.852.345.138.239.7NANANA0.0NANANA
us-gaap:ContractWithCustomerLiabilityCurrent ▄▃█▂▂▃▁▂▂▂▃▃▂▂▂16.014.022.012.012.013.010.012.011.012.013.412.611.912.112.1NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:DividendsPayableCurrent ██▁39.039.06.0NANANA14.0NANANA17.2NANANA17.7NANANA15.7NANANA20.0NANANA15.9NANANA16.7NANANA9.5NANANA11.7NANANA4.2NANANA5.4NANANA
us-gaap:LiabilitiesCurrent ███▃▃▃▄▄▄▄▄▃▃▄▄▄▃▃▃▄▄▄▄▁▂▂▃▃▃▂▂▂▂▂▂▁▁▂▂▂▃▁▁3862.03921.03810.02199.01970.02124.02329.02525.02313.02299.02398.92099.62236.32436.62425.22381.22106.12151.22091.82445.12399.82310.42357.31539.81635.61601.52168.22122.82170.71910.91623.91674.71716.61583.21603.11568.41513.31881.21905.41924.11936.61532.51392.3NANANA1046.2NANANA
us-gaap:LongTermDebtCurrent ▁▁▁▁▆▆▆█▄▄▄▁▁▁▁▁▁▁▁▄▄▄▄▁▁▁▁▁▁▁▁▁▁▁▁▁▁████▁▁12.04.04.02.0252.0252.0252.0386.0140.0140.0139.814.82.86.315.820.816.823.419.4188.0163.9163.3160.88.011.818.822.517.716.26.96.80.30.11.14.35.510.2377.1381.5367.4363.65.66.1NANANA5.1NANANA
us-gaap:NotesPayableCurrent ▁▁▁▁▄▄▄▆▃▃▃▁▂▃▂▄▂▄▃▇▇▆▆▂▂▂██▇▅▃▄▄▃▄▃▃▃▃▃▃▃▂13.051.049.049.0297.0286.0286.0419.0171.0164.0172.650.770.5194.084.6303.2141.8255.1175.9525.4515.3466.5441.574.672.1107.8623.7605.7541.1338.5201.6253.7316.8229.3239.1231.0186.8184.2196.3157.9165.8176.2128.5NANANA69.1NANANA
us-gaap:OperatingLeaseLiabilityCurrent ▄█▁48.049.047.0NANANA18.0NANANA0.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherLiabilitiesCurrent █▁▃1482.01385.01409.0NANANA718.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:LongTermDebt NANANA2789.03014.01916.01926.02042.02069.02063.02080.52100.42105.32137.82119.52112.72094.72063.72063.02277.92283.42295.22285.41742.51743.51749.4738.8723.5720.41034.51027.81018.9913.4972.5828.1871.8966.41225.81132.81234.61283.11265.11058.0NANANA778.3NANANA
 us-gaap:LongTermDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType bwa:SeniorNotesDueJuly2027,us-gaap:SeniorNotes██▄▄▁1089.01089.01088.01088.01087.0NA0.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType bwa:SeniorNotesDueMarch2025,us-gaap:SeniorNotes███▁▁498.0498.0498.0497.0497.0NA497.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType bwa:SeniorNotesDueMay2031,us-gaap:SeniorNotes1164.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType bwa:SeniorNotesDueNovember2022,us-gaap:SeniorNotesNA585.0609.0584.0560.0NA558.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType bwa:SeniorNotesDueOctober2025,us-gaap:SeniorNotes▁▄█901.0906.0912.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType bwa:SeniorNotesDueOctober2025Member,us-gaap:SeniorNotesNANA912.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType bwa:TermLoanFacilitiesAndOther,us-gaap:MediumTermNotes█▂▂▁▁95.021.022.07.07.0NA7.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LongTermDebtNoncurrent █▇▇▅▅▃▃▃▃▃▃▄▄▄▄▄▄▄▄▄▄▄▄▃▃▃▁▁▁▂▂▂▁▂▁▁▁▁▁▁▁▂▂4348.03708.03738.02787.02762.01664.01674.01656.01929.01923.01940.72085.62102.52131.52103.72091.92077.92040.32043.62089.92119.52131.92124.61734.51731.71730.6716.3705.8704.21027.61021.01018.6913.3971.4823.8866.3956.2848.7751.3867.2919.51259.51051.9NANANA773.2NANANA
us-gaap:LongTermDebtAndCapitalLeaseObligations █▁▁4348.03708.03738.0NANANA1674.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:DeferredIncomeTaxLiabilitiesNet ▆▁█264.0235.0276.0NANANA125.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent ▇▇█▁▂▂▂▁▁▂▂▁▁▂▂▂▁▂▂▂▂▂▂▂▂▂▂▂▂▂▂▆▆▆▆▅▅▅▅▅▅▅▅541.0552.0576.0290.0299.0302.0306.0273.0283.0292.0298.3269.4284.4300.2301.6301.7290.8292.0294.1293.7302.7313.6312.9306.7311.0315.0326.6295.1307.8313.7312.9507.7502.6503.7509.7449.3451.1457.5457.0435.2450.0447.4438.1NANANA473.7NANANA
us-gaap:MinorityInterest █▆▆▃▃▃▃▃▂▂▃▂▂▂▂▂▂▂▂▂▂▁▂▂▁▁▂▁▁▁▂▁▁▁▁▁▁▁▁▁▁▁▁373.0287.0296.0161.0152.0140.0138.0121.0108.0111.0119.3103.893.7105.1109.190.679.976.383.680.874.467.977.870.964.858.574.769.664.953.871.867.460.955.563.560.760.862.865.160.267.647.451.2NANANA37.4NANANA
us-gaap:OtherLiabilitiesNoncurrent ▇██▄▃▃▃▂▃▂▂▂▂▂▂▁▁▁▁▂▂▂▂▁▁▁▁▂▂▂▁▁▁▁▁▂▂▂▂▂▂▂▂1090.01136.01181.0698.0543.0548.0549.0444.0470.0459.0357.3351.9352.1389.4355.5339.1321.2306.7275.7387.9410.5423.7415.2318.2336.5313.0326.0358.4380.6368.3326.8328.6316.9309.0318.1357.0365.6373.1391.9402.1421.4413.8362.9NANANA295.6NANANA
us-gaap:OperatingLeaseLiabilityNoncurrent ▁█▄168.0176.0172.0NANANA67.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo NANA42.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree NANA27.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour NANA23.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA22.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANA73.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:StockholdersEquity ███▅▅▅▅▅▄▄▄▄▄▄▃▃▃▃▃▃▃▃▃▃▃▃▃▃▄▃▃▃▂▂▂▂▂▂▁▁▁▁▁6649.06367.06428.04757.04611.04724.04706.04457.04394.04274.04225.54066.43960.33910.73716.83825.73612.03403.43218.33709.93681.73693.23553.73717.03686.73504.03616.23730.63828.83683.53560.63367.33195.13106.13082.63044.82873.72658.02387.92405.52430.92306.42258.6NANANA2185.3NANANA
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest █▇█▅▅▅▅▄▄▄▄▄▄▄▃▃▃▃▂▃▃▃▃▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▁▁▁▁▁7022.06654.06724.04918.04763.04864.04844.04578.04502.04385.04344.84170.24054.04015.83825.93916.33691.93479.73301.93790.73756.13761.13631.53787.93751.53562.53690.93800.23893.73737.33632.43434.73256.03161.63146.13105.52934.52720.82453.02465.72498.52353.82309.8NANANA2222.7NANANA
us-gaap:CommonStockValue ██████████▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▁▁▁▁▁▁▁▁▁▁▁▁3.03.03.03.03.03.03.03.03.03.02.52.52.52.52.52.52.52.52.52.52.52.52.52.52.52.52.52.52.52.52.51.21.21.21.21.21.21.21.21.21.21.21.2NANANA1.2NANANA
us-gaap:AdditionalPaidInCapital ███▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▃▂▁▁▁▁▁2602.02589.02614.01128.01115.01109.01145.01129.01116.01111.01145.81127.11110.71102.31118.71100.11088.71077.61104.31092.71091.51085.31109.71108.81099.91096.71112.41104.31097.11092.41121.91132.01129.31130.51160.71185.01477.81205.01134.31119.61135.51120.71100.4NANANA1034.1NANANA
us-gaap:RetainedEarningsAccumulatedDeficit ███▇▇▇▇▇▇▆▆▆▆▅▅▅▅▅▅▅▅▅▅▅▄▄▄▄▄▃▃▃▃▃▂▂▂▂▂▂▁▁▁6527.06321.06296.05979.05903.06036.05942.05757.05598.05461.05336.15127.34958.84722.44531.04712.84557.34374.74215.24538.14482.44346.04210.14113.63985.43866.63717.13606.53469.93308.13177.43065.62927.32753.22611.22490.02388.92268.32110.31988.11846.71684.81560.2NANANA1193.4NANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▂▂▂▂▁▁▂▁▂▂▂▃▃▄▄▃▃▂▂▃▃▃▃▃▃▂▄▆▇▇▇▇▆▆▆▆▆▇▆▇██▇-673.0-736.0-651.0-730.0-787.0-801.0-727.0-779.0-670.0-675.0-674.1-609.2-567.6-430.3-490.0-545.7-606.4-674.2-722.1-571.0-593.8-540.8-610.2-576.7-539.5-616.9-383.6-199.9-18.6-16.8-14.0-91.0-187.8-189.2-121.3-120.6-182.6-94.8-150.8-85.065.931.1-53.7NANANA14.5NANANA
us-gaap:TreasuryStockValue ███▇▇▇▇▇▇▇▇▇▇▆▆▆▆▆▆▆▅▅▅▄▃▃▃▃▃▃▃▃▃▂▂▂▃▃▃▂▂▂▁1810.01810.01834.01623.01623.01623.01657.01653.01653.01626.01584.81581.31544.11486.21445.41444.01430.11377.21381.61352.41300.91199.81158.4931.2861.6844.9832.2782.8722.1702.7727.2740.5674.9589.6569.2510.8811.6721.7707.1618.4618.4531.4349.5NANANA57.9NANANA
us-gaap:MinorityInterest █▆▆▃▃▃▃▃▂▂▃▂▂▂▂▂▂▂▂▂▂▁▂▂▁▁▂▁▁▁▂▁▁▁▁▁▁▁▁▁▁▁▁373.0287.0296.0161.0152.0140.0138.0121.0108.0111.0119.3103.893.7105.1109.190.679.976.383.680.874.467.977.870.964.858.574.769.664.953.871.867.460.955.563.560.760.862.865.160.267.647.451.2NANANA37.4NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▅▅▆▇▂▄▄▆▆▂█▄▅▂█▄▅▂▇▄▅▂▆▃▅▂▄▄▅▂▄▄▅▂▅▄▅▂▄▄▅▁▄▃▃▂280.0342.0376.0481.064.0263.0184.0357.0427.040.0570.2251.1270.534.7556.4224.7338.960.3442.6230.9327.834.4397.7150.9286.632.7255.6220.0279.846.4204.0214.8283.716.3336.1232.5279.330.8235.1223.5291.0-41.4226.2104.4144.264.1NANANANA
us-gaap:NetCashProvidedByUsedInInvestingActivities ▃▇▅█████▇█▇▇█▇▇▆▇▇██▇█▁▇▇▇▇▇▇▇████▇██████▇██▇█-914.0-185.0-617.0-102.0-27.0-120.0-109.0-103.0-173.0-104.0-121.5-126.4-105.7-160.9-181.6-315.5-122.5-132.7-61.8-113.5-125.7-103.2-1331.1-132.9-143.3-151.8-164.0-139.4-130.6-231.1-109.7-96.0-105.5-73.6-122.9-38.0-91.9-92.4-95.7-112.8-88.2-267.8-87.4-78.9-214.9-48.3NANANANA
us-gaap:NetCashProvidedByUsedInFinancingActivities ▅▃▂▂█▃▂▃▃▂▃▂▂▃▂▄▂▃▁▃▃▂▅▃▃▅▃▃▂▃▃▃▃▃▂▃▃▃▂▃▃▃▂▄▃▃460.0-51.0-274.0-288.01061.0-62.0-172.0-30.0-65.0-153.0-60.0-107.7-212.2-3.5-256.3108.1-198.5-15.8-423.7-99.2-86.1-124.8497.1-82.6-94.7416.8-52.2-20.4-185.156.0-76.2-57.0-61.959.7-137.5-61.4-87.097.3-151.2-85.0-62.178.6-119.7188.8-103.821.5NANANANA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▂▄▁▄█▃▃▄▄▂▅▃▃▂-187.0105.0-471.0118.01102.069.0-84.0206.0193.0-222.0377.00.0-48.0-135.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:DeferredIncomeTaxExpenseBenefit ▄▄▆▆▄▅▇▄▅▅▄▅▄▅█▅▅▅▁▄▅▅▅▅▅▅▅▅▅▅▄▅▅▄▄▅▅▄▅▄▅▄▄▄▄▅-35.0-64.068.080.0-19.0-5.0159.0-7.037.0-2.0-33.4-2.1-42.78.2252.40.718.220.6-265.6-22.8-0.423.9-2.94.511.910.4-2.67.222.015.6-14.11.36.7-17.0-10.35.216.5-22.123.0-9.53.6-18.2-12.3-24.2-11.9-3.8NANANANA
us-gaap:IncreaseDecreaseInInventories █▆▄▁▂▅▂▃▃▄▂▃▄▃▃▄▃▃▂▄▂▃▃▃▃▄▂▄▃▃▃▃▂▃▁▃▃▃▂▃▂▄▂▄▃▄156.0104.031.0-43.0-18.058.0-20.016.09.031.0-27.118.834.127.513.739.625.75.5-9.031.4-3.817.98.23.610.530.6-11.132.810.17.91.84.1-9.718.6-33.211.27.419.9-8.916.5-2.633.6-6.934.73.347.9NANANANA
us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet ▆▂▁▃▃▃▃▄▄▃▄▄▄▃▄▄▄▃▆▃▃▃▄▄▃▄▆▄▄▄█▄▃▃▄▄▄▃▄▃▃▃▃▃▃▃74.0-42.0-64.0-15.07.0-4.0-3.016.010.0-2.012.419.615.9-4.114.936.233.4-1.672.7-15.96.58.524.338.79.023.178.420.728.431.4141.928.5-4.7-10.830.127.911.7-3.238.15.15.2-2.3-11.4-6.86.57.8NANANANA
us-gaap:NetCashProvidedByUsedInOperatingActivities ▅▅▆▇▂▄▄▆▆▂█▄▅▂█▄▅▂▇▄▅▂▆▃▅▂▄▄▅▂▄▄▅▂▅▄▅▂▄▄▅▁▄▃▃▂280.0342.0376.0481.064.0263.0184.0357.0427.040.0570.2251.1270.534.7556.4224.7338.960.3442.6230.9327.834.4397.7150.9286.632.7255.6220.0279.846.4204.0214.8283.716.3336.1232.5279.330.8235.1223.5291.0-41.4226.2104.4144.264.1NANANANA
us-gaap:NetIncomeLoss ▇▅█▅▃▆▇▆▆▆▇▆▇▇▃▆▆▆▁▅▆▆▅▆▆▆▆▆▆▆▆▆▆▆▅▅▅▆▅▆▆▅▅▅▅▅▅▄▄▄247.065.0358.0111.0-98.0129.0220.0194.0172.0160.0230.0203.8271.8225.1-146.2184.9212.0189.2-293.383.3164.4164.1125.3157.4148.1178.9139.9166.6190.2159.1141.4166.8174.1142.0121.2101.1120.6158.0122.0141.6162.0124.5111.7106.782.876.252.717.2-35.9-7.0
us-gaap:ProfitLoss ▇▅█▅▃▅▆▆▆▆▇▆▇▆▃▆▆▆▁▅▆▆▅▆▆▆▆▆▆▆▆▆▆▆▅▅▅▆▅▅▆▅▅▅▅▅▅▄▄▄274.094.0385.0129.0-84.0137.0237.0207.0182.0171.0247.6215.9284.3236.8-132.0194.6221.1199.6-281.593.1175.4173.2135.4165.9157.4187.7147.4173.0199.9167.2149.4172.9180.1148.6126.6105.9126.2163.7127.2146.7167.3129.4115.6111.587.781.456.620.0-33.9-6.3
us-gaap:ShareBasedCompensation ▅▄▄▅▂▃▄▅▃▂▆▆▂▅▆▄▄▅▆▂▄▃▃▃▃▄▂▃▂▂▂▂▂▅▆▃▃█▁▁▂▁▂▁▁▁15.012.012.013.06.010.012.013.09.08.015.315.77.214.717.211.211.213.116.37.010.79.69.79.99.710.98.08.38.07.87.36.97.215.215.79.910.121.05.45.26.44.87.25.05.74.9NANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ▃▇▅█████▇█▇▇█▇▇▆▇▇██▇█▁▇▇▇▇▇▇▇████▇██████▇██▇█-914.0-185.0-617.0-102.0-27.0-120.0-109.0-103.0-173.0-104.0-121.5-126.4-105.7-160.9-181.6-315.5-122.5-132.7-61.8-113.5-125.7-103.2-1331.1-132.9-143.3-151.8-164.0-139.4-130.6-231.1-109.7-96.0-105.5-73.6-122.9-38.0-91.9-92.4-95.7-112.8-88.2-267.8-87.4-78.9-214.9-48.3NANANANA
us-gaap:PaymentsToAcquireProductiveAssets ▆█▇▃▁▄▅▃▅▄▆▅▄▆▇▅▄▅▆▄▅▄▆▅▆▅▇▅▅▅▄▃▄▃▅▃▃▃▄▄▃▂▃▂▁▁147.0195.0179.091.054.0117.0135.0102.0127.0117.0152.3125.6108.3160.4170.3135.5123.3130.9145.8120.1130.4104.3158.5133.8145.0140.0165.1140.6131.1126.2119.9103.1107.487.4124.494.693.495.0119.6114.289.770.288.880.452.155.3NANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▅▃▂▂█▃▂▃▃▂▃▂▂▃▂▄▂▃▁▃▃▂▅▃▃▅▃▃▂▃▃▃▃▃▂▃▃▃▂▃▃▃▂▄▃▃460.0-51.0-274.0-288.01061.0-62.0-172.0-30.0-65.0-153.0-60.0-107.7-212.2-3.5-256.3108.1-198.5-15.8-423.7-99.2-86.1-124.8497.1-82.6-94.7416.8-52.2-20.4-185.156.0-76.2-57.0-61.959.7-137.5-61.4-87.097.3-151.2-85.0-62.178.6-119.7188.8-103.821.5NANANANA
us-gaap:ProceedsFromIssuanceOfLongTermDebt █▁▁▁█▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▄▁▁▇▁▁▁▂▁▂▁▂▁▁▂▂▁▁▂▂▁▃▁▁1207.022.015.020.01130.013.018.015.019.011.038.40.97.312.13.00.00.00.00.04.60.00.0541.711.63.11012.822.710.0-2.2100.017.5106.34.7161.00.013.9108.6191.46.74.0147.2206.710.3361.90.00.0NANANANA
us-gaap:RepaymentsOfLongTermDebt █▁▁▄▁▁▃▁▁▁▂▁▁▁▁▁▁▁▃▁▁▁▁▁▁▁▁▁▄▂▁▁▂▁▂▂▁▂▂▂▃▁▁▂▁▁645.026.023.0273.021.014.0150.015.013.026.050.70.74.310.04.82.06.16.4177.07.30.68.77.46.912.43.18.92.5320.1100.10.10.161.215.642.8107.4-3.799.9112.856.6135.83.90.8104.18.72.5NANANANA
us-gaap:PaymentsOfDividendsCommonStock ███▇▇▇▇▇▇▇▇▇▇▇▇▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▁▁41.040.041.035.035.035.035.035.035.035.035.235.235.535.635.629.429.429.729.627.628.028.228.829.229.329.429.330.028.428.428.328.50.00.0NANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value3000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.02500000.02500000.02500000.02500000.02500000.02500000.02500000.02500000.02500000.02500000.02500000.02500000.02500000.02500000.02500000.02500000.02500000.02500000.02500000.02500000.02500000.01200000.01200000.01200000.01200000.01200000.01200000.01200000.01200000.01200000.01200000.01200000.01200000.01200000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value239238207206206206206207208209210211211212213216218225226227228229229115116116118121127127128130127129129
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value238237206206205205205206207208209209210211212215217224225225227227227113114115114112108108108110112115116
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:PerformanceShares


Antidilutive
Period End2021-06-30
Value0.778962
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value1.030.271.660.54-0.470.631.070.940.840.771.110.981.31.07-0.70.881.010.89-1.390.390.760.750.570.70.660.790.620.730.840.70.621.471.521.231.050.881.081.461.121.31.491.131.00.950.720.650.450.15-0.31-0.06
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value1.030.271.650.53-0.470.631.060.940.830.771.10.981.31.07-0.70.881.00.89-1.390.390.760.750.560.70.650.790.610.730.830.690.621.451.51.221.030.851.01.281.01.151.311.00.890.870.680.630.450.15-0.31-0.06
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Allocated Share Based Compensation Expense

us-gaap:AllocatedShareBasedCompensationExpense bwa:PerformanceBasis, us-gaap:AwardType

us-gaap:AllocatedShareBasedCompensationExpense

bwa:AdjustedEarningsPerShareUnitsMetric, us-gaap:PerformanceShares


Allocated
Period End2020-09-302020-06-302019-06-30
Value0.01.00.0
Percentage of AllocatedShareBasedCompensationExpense0.0100.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.10.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bwa:AdjustedEarningsPerShareUnitsMetric us-gaap:PerformanceShares0.00.00.0

bwa:RelativeGrowthUnitMetric, us-gaap:PerformanceShares


Allocated
Period End2020-09-302020-06-302019-09-302019-06-30
Value4.0-3.03.01.0
Percentage of AllocatedShareBasedCompensationExpense0.0-300.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.2-0.20.10.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bwa:RelativeGrowthUnitMetric us-gaap:PerformanceShares0.00.00.00.0

bwa:TotalStockholderReturnUnitsMetric, us-gaap:PerformanceShares


Allocated
Period End2020-09-302020-06-302019-09-302019-06-30
Value1.02.02.00.0
Percentage of AllocatedShareBasedCompensationExpense0.0200.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.10.10.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bwa:TotalStockholderReturnUnitsMetric us-gaap:PerformanceShares0.00.00.00.0

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:AwardType

us-gaap:PerformanceShares


Allocated
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value5.00.01.00.02.01.03.03.43.40.51.72.32.22.33.16.70.24.23.02.87.42.9
Percentage of AllocatedShareBasedCompensationExpense0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.20.00.00.00.10.00.10.10.10.00.10.10.10.10.10.30.00.20.10.10.40.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:PerformanceShares0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value310-20.0437168-84.05527285177159179162134284-90.5245279237-444.410611123386120225-54.4-47.7-14.7188156220263175721211643221456-9.319620997260-50.11.1
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.2-0.50.06.6-5.92.410.63.46.96.27.06.55.010.2-3.510.211.79.9-19.74.84.810.34.16.411.1-2.7-2.4-0.78.67.511.714.69.33.97.19.71.711.23.2-0.510.812.16.418.5-3.50.1

Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3374.0481192-70.06029493184171195171140298-40.2246279241-451.810810923596116224-54.3-43.2-16.5190155218266174741201633221456-5.219520794260-46.10.0
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.00.10.07.6-4.92.611.53.77.26.77.66.95.210.7-1.610.211.710.0-20.04.94.710.44.56.211.1-2.7-2.2-0.88.77.411.614.79.24.07.09.61.811.23.2-0.310.712.06.218.5-3.20.0

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents

us-gaap:AociIncludingPortionAttributableToNoncontrollingInterest


Comprehensive
Period End2020-09-302020-06-302019-09-302019-06-30
Value5714-109.05.0
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest29.7-20.0-117.22.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.21.0-4.40.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AociIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.0

us-gaap:NoncontrollingInterest


Comprehensive
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-30
Value0.0-5.06.00.0-3.0-5.0-3.0
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest0.0-125.03.1-0.0-5.0-5.4-1.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0-0.10.20.0-0.1-0.2-0.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.0

Cost Of Goods And Services Sold

us-gaap:CostOfGoodsAndServicesSold

us-gaap:CostOfGoodsAndServicesSold


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value299631913154201712521832201419682038204720301962211421922021189418761890
Percentage of CostOfGoodsAndServicesSold100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax79.779.60.079.687.880.478.779.079.979.878.979.278.578.778.278.478.578.6

us-gaap:CostOfGoodsAndServicesSold us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome

us-gaap:ForeignExchangeContract, us-gaap:CashFlowHedging, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome


Cost
Period End2021-06-302020-06-302019-12-312019-09-302019-06-30
Value1.00.00.00.01.0
Percentage of CostOfGoodsAndServicesSold0.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ForeignExchangeContract us-gaap:CashFlowHedging us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome0.00.00.0-0.0-100.0

Gains Losses On Extinguishment Of Debt

us-gaap:GainsLossesOnExtinguishmentOfDebt

us-gaap:GainsLossesOnExtinguishmentOfDebt


Gains
Period End2021-06-30
Value20
Percentage of GainsLossesOnExtinguishmentOfDebt100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.5

Gross Profit

us-gaap:GrossProfit

us-gaap:GrossProfit


Gross
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value76281877251717444754552451351954251557959156552251451750147149646444639842942941342447244540637939637434434338339535935035734230627327523821315111679
Percentage of GrossProfit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax20.320.40.020.412.219.621.321.020.120.221.120.821.521.321.921.621.521.522.221.321.320.521.021.121.121.620.720.921.521.421.621.020.920.220.020.320.620.720.319.619.619.820.019.419.418.517.814.812.79.7

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value302136596272-90.0186475273255262266282314331206274297285-464.6141259253196232237259214244285235193229246199175170194221
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.03.40.010.7-6.38.218.611.010.010.210.411.411.711.98.011.312.411.9-20.66.411.111.29.312.411.713.110.812.113.011.310.312.713.010.810.210.010.511.6

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value2842211143-6.04923866739119663094338797686-183.14884806166807267718568445666504864685758464940304.226205.71.5-19.1-6.6
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.71.00.05.6-0.42.29.32.62.93.50.72.71.13.413.13.33.23.6-8.12.23.63.52.93.63.93.63.43.53.93.32.43.13.52.72.83.83.73.03.32.62.72.42.00.31.81.60.50.1-2.1-0.8

us-gaap:IncomeTaxExpenseBenefit us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value1.01.05.0-1.00.0-1.00.01.06.0
Percentage of IncomeTaxExpenseBenefit3.62.42.4-0.7-0.0-2.00.01.58.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.0-0.00.0-0.00.00.00.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.0

us-gaap:IncomeTaxExpenseBenefit us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Income
Period End2020-12-312020-09-302020-06-302019-12-312019-09-302019-06-30
Value5.0-1.00.00.01.06.0
Percentage of IncomeTaxExpenseBenefit2.4-0.7-0.00.01.58.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0-0.00.00.00.00.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.0

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedDefinedBenefitPlansAdjustmentIncludingPortionAttributableToNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-06-302020-03-31
Value1.01.00.0-1.0
Percentage of IncomeTaxExpenseBenefit3.62.4-0.0-2.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.0-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedDefinedBenefitPlansAdjustmentIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.0

Income Taxes Paid Net

us-gaap:IncomeTaxesPaidNet

us-gaap:IncomeTaxesPaidNet


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value11075952740439559216849801058059677378541025984555225505252527255544894363439475838294837201014
Percentage of IncomeTaxesPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.91.90.01.12.81.93.72.40.82.71.93.33.92.92.32.83.13.32.44.62.53.72.62.81.32.52.62.62.43.52.93.02.65.12.12.02.12.53.32.21.62.82.51.40.81.1

Interest And Debt Expense

us-gaap:InterestAndDebtExpense

us-gaap:InterestAndDebtExpense


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value4221232018121215141413141416161718181922212117151710.0109.09.08.27.68.18.89.76.75.01215171820182218141416139.019
Percentage of InterestAndDebtExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.10.50.00.81.30.50.50.60.50.50.50.60.60.60.70.70.80.70.91.00.90.90.80.80.90.50.50.40.40.40.40.40.50.50.40.30.70.81.01.01.11.11.41.31.01.11.31.31.02.3

Interest Paid Net

us-gaap:InterestPaidNet

us-gaap:InterestPaidNet


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value292544240.02914257.02616288.13019318.431262815291431121211127.218121212121212181319122312189.2196.1
Percentage of InterestPaidNet100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.80.60.00.90.01.30.51.00.31.00.61.10.31.10.81.30.41.31.21.30.71.30.71.60.60.60.60.60.30.90.70.70.70.70.70.81.00.71.10.71.30.71.20.71.40.5

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value24765358111-98.0129220194172160230203271225-146.2184212189-293.38316416412515714817813916619015914116617414212110112015812214116212411110682765217-35.9-7.0
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.61.60.04.4-6.95.78.67.86.76.28.98.210.18.1-5.77.78.97.9-13.03.87.17.25.98.47.39.07.08.28.77.67.59.29.27.77.16.06.58.36.97.98.97.27.37.65.85.94.41.7-3.9-0.9

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value24765358111-98.0129220194172160229204272225
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.099.9100.1100.1100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.61.60.04.4-6.95.78.67.86.76.28.98.210.18.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Income Loss Attributable To Noncontrolling Interest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value27292718148.0171310.01117121211149.79.110119.8119.1108.59.38.87.56.49.78.18.06.16.06.65.44.85.65.75.25.15.34.93.94.84.95.23.92.82.00.7
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.70.70.00.71.00.40.70.50.40.40.70.50.50.40.50.40.40.40.50.40.50.40.50.50.50.40.40.30.40.40.40.30.30.40.30.30.30.30.30.30.30.30.30.30.30.40.30.30.20.1

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value27-29.018148.0171310.01117121212
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.0-100.0100.0100.0100.0100.0100.0100.0100.0101.799.296.0102.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.7-0.70.71.00.40.70.50.40.40.70.50.40.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.0

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value317403223284-78.0189478276285264265278312333209275299292-458.01502692642002372422592122372802331872252431981701631932251911982281791571231171066727-49.55.5
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.410.10.011.2-5.58.318.711.111.210.310.311.211.612.08.111.412.512.2-20.36.811.611.69.412.611.913.110.711.712.811.210.012.512.910.79.99.610.411.810.811.112.610.410.38.78.38.35.62.7-5.40.7

Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-30
Value4000000.0-6000000.01000000.01000000.0-2000000.01000000.0-1000000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.1-0.10.00.1-0.10.0-0.0

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value27494385129-84.0137237207182171247215284236-132.0194221199-281.59317517313516515718714717319916714917218014812610512616312714616712911511187815620-33.9-6.3
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.32.30.05.1-5.96.09.38.37.16.79.68.710.68.5-5.18.19.38.3-12.54.27.57.66.48.87.79.57.48.59.18.07.99.69.58.07.46.26.88.67.28.29.27.57.57.96.26.34.71.9-3.7-0.8

Research And Development Expense

us-gaap:ResearchAndDevelopmentExpense

us-gaap:ResearchAndDevelopmentExpense


Research
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value16618317910088109941021131041031081121161041011049684888585767580757885908287717271676466675958646150454642
Percentage of ResearchAndDevelopmentExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.44.60.03.96.24.83.74.14.44.14.04.44.24.24.04.24.44.03.74.03.63.83.64.03.93.84.04.24.13.94.64.03.83.93.93.83.63.53.43.33.63.53.33.23.23.3

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value375840093926253414262279255924922551256625722478269427842586241623892407225922142329226821231884203119841991203221972084188518061893185117191695185619121773179118181730153314101421128611981027916819
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems

us-gaap:IntersegmentElimination


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-09-30
Value-139.0-140.0-136.0-17.0-7.0-15.0-16.0-15.0-16.0-14.0-13.9-14.0-14.0-15.0-12.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-3.7-3.5-3.5-0.7-0.5-0.7-0.6-0.6-0.6-0.5-0.5-0.6-0.5-0.5-0.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-3.7-3.5-3.5-0.7-0.5-0.7-0.6-0.6-0.6-0.5-0.5-0.6-0.5-0.5-0.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:IntersegmentElimination100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, bwa:AfterMarket


Revenue
Period End2021-06-302021-03-31
Value226197
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.04.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.04.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bwa:AfterMarket100.0100.0

us-gaap:OperatingSegments, bwa:AirManagement


Revenue
Period End2021-06-302021-03-312020-06-302020-03-31
Value185420118261434
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax49.350.257.962.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax49.350.257.962.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bwa:AirManagement100.0100.0100.0100.0

us-gaap:OperatingSegments, bwa:Drivetrain


Revenue
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-30
Value14661075607860993998
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax36.642.442.637.739.839.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax36.642.442.637.739.839.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bwa:Drivetrain100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, bwa:EPropulsionDrivetrain


Revenue
Period End2021-06-302020-06-30
Value1337607
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax35.642.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax35.642.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bwa:EPropulsionDrivetrain100.0100.0

us-gaap:OperatingSegments, bwa:Engine


Revenue
Period End2020-09-302020-06-302019-09-302019-06-30
Value147682615141569
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax58.257.960.861.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax58.257.960.861.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bwa:Engine100.0100.0100.0100.0

us-gaap:OperatingSegments, bwa:FuelInjection


Revenue
Period End2021-06-302021-03-31
Value480475
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.811.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.811.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bwa:FuelInjection100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementBusinessSegments

bwa:AfterMarket


Revenue
Period End2021-06-302021-03-31
Value222196
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.94.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.94.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bwa:AfterMarket100.0100.0

bwa:AirManagement


Revenue
Period End2021-06-302021-03-312020-06-302020-03-31
Value181819688191419
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax48.449.157.462.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax48.449.157.462.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bwa:AirManagement100.0100.0100.0100.0

bwa:Drivetrain


Revenue
Period End2021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value1419107560786010439929989821045976103410831022921921924883865895879734583626611615627708680627604613601559534593611533538525486419397408
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax35.442.442.637.740.839.839.138.340.639.438.438.939.538.238.538.439.139.138.438.834.631.030.930.830.930.932.332.733.333.432.432.532.531.532.032.030.130.128.928.127.428.128.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax35.442.442.637.740.839.839.138.340.639.438.438.939.538.238.538.439.139.138.438.834.631.030.930.830.930.932.332.733.333.432.432.532.531.532.032.030.130.128.928.127.428.128.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bwa:Drivetrain100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwa:EPropulsionDrivetrain


Revenue
Period End2021-06-302020-06-30
Value1294607
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax34.442.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax34.442.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bwa:EPropulsionDrivetrain100.0100.0

bwa:Engine


Revenue
Period End2020-09-302020-06-302019-09-302019-06-30
Value145981915001553
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax57.657.460.260.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax57.657.460.260.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bwa:Engine100.0100.0100.0100.0

bwa:FuelInjection


Revenue
Period End2021-06-302021-03-31
Value424426
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.310.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.310.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bwa:FuelInjection100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementGeographical

bwa:OtherForeign


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value746663301134343939
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.01.61.61.20.81.51.31.61.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.01.61.61.20.81.51.31.61.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bwa:OtherForeign100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:Asia


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value127913241428820630533836681673
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax34.033.036.432.444.223.432.727.326.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax34.033.036.432.444.223.432.727.326.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Asia100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:Europe


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value140314821385844428902892919971
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax37.337.035.333.330.039.634.936.938.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax37.337.035.333.330.039.634.936.938.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Europe100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:NorthAmerica


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value100211371050840357810797853868
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax26.728.426.733.125.035.531.134.234.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax26.728.426.733.125.035.531.134.234.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:NorthAmerica100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementGeographical, us-gaap:StatementBusinessSegments

bwa:OtherForeign, bwa:AfterMarket


Revenue
Period End2021-06-302021-03-31
Value1314
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bwa:OtherForeign bwa:AfterMarket100.0100.0

bwa:OtherForeign, bwa:AirManagement


Revenue
Period End2021-06-302021-03-312020-06-302020-03-31
Value38318.030
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.00.80.61.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.00.80.61.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bwa:OtherForeign bwa:AirManagement100.0100.0100.0100.0

bwa:OtherForeign, bwa:Drivetrain


Revenue
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value6.06.04.03.04.04.09.09.07.07.58.68.07.08.28.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.20.20.20.20.20.40.40.30.30.30.30.30.30.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.20.20.20.20.20.40.40.30.30.30.30.30.30.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bwa:OtherForeign bwa:Drivetrain100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwa:OtherForeign, bwa:EPropulsionDrivetrain


Revenue
Period End2021-06-302020-06-30
Value6.03.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.20.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.20.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bwa:OtherForeign bwa:EPropulsionDrivetrain100.0100.0

bwa:OtherForeign, bwa:Engine


Revenue
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value31268.03030303031273231312728
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.81.00.61.31.21.21.21.21.11.31.21.11.01.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.81.00.61.31.21.21.21.21.11.31.21.11.01.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bwa:OtherForeign bwa:Engine100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwa:OtherForeign, bwa:FuelInjection


Revenue
Period End2021-06-302021-03-31
Value1715
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.50.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.50.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bwa:OtherForeign bwa:FuelInjection100.0100.0

srt:Asia, bwa:AfterMarket


Revenue
Period End2021-06-302021-03-31
Value1713
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.50.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.50.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Asia bwa:AfterMarket100.0100.0

srt:Asia, bwa:AirManagement


Revenue
Period End2021-06-302021-03-312020-06-302020-03-31
Value531572306291
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.114.321.512.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.114.321.512.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Asia bwa:AirManagement100.0100.0100.0100.0

srt:Asia, bwa:Drivetrain


Revenue
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value602636429324242421324317303380307337337334276
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15.016.216.922.710.616.513.012.411.814.812.412.512.112.911.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15.016.216.922.710.616.513.012.411.814.812.412.512.112.911.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Asia bwa:Drivetrain100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:Asia, bwa:EPropulsionDrivetrain


Revenue
Period End2021-06-302020-06-30
Value584324
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15.522.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15.522.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Asia bwa:EPropulsionDrivetrain100.0100.0

srt:Asia, bwa:Engine


Revenue
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value608391306291415357356340382386430422447410
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15.515.421.512.816.214.314.013.314.915.616.015.217.317.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15.515.421.512.816.214.314.013.314.915.616.015.217.317.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Asia bwa:Engine100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:Asia, bwa:FuelInjection


Revenue
Period End2021-06-302021-03-31
Value147137
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.93.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.93.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Asia bwa:FuelInjection100.0100.0

srt:Europe, bwa:AfterMarket


Revenue
Period End2021-06-302021-03-31
Value108102
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.92.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.92.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Europe bwa:AfterMarket100.0100.0

srt:Europe, bwa:AirManagement


Revenue
Period End2021-06-302021-03-312020-06-302020-03-31
Value785833338711
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax20.920.823.731.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax20.920.823.731.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Europe bwa:AirManagement100.0100.0100.0100.0

srt:Europe, bwa:Drivetrain


Revenue
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value27626618690191189203211227200208248291248238
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.96.87.36.38.47.48.18.38.87.88.49.210.59.69.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.96.87.36.38.47.48.18.38.87.88.49.210.59.69.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Europe bwa:Drivetrain100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:Europe, bwa:EPropulsionDrivetrain


Revenue
Period End2021-06-302020-06-30
Value25190
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.76.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.76.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Europe bwa:EPropulsionDrivetrain100.0100.0

srt:Europe, bwa:Engine


Revenue
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value775658338711703716760801730690807846725693
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax19.726.023.731.227.528.729.831.228.427.930.030.428.128.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax19.726.023.731.227.528.729.831.228.427.930.030.428.128.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Europe bwa:Engine100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:Europe, bwa:FuelInjection


Revenue
Period End2021-06-302021-03-31
Value259271
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.96.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.96.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Europe bwa:FuelInjection100.0100.0

srt:NorthAmerica, bwa:AfterMarket


Revenue
Period End2021-06-302021-03-31
Value8467
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.21.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.21.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:NorthAmerica bwa:AfterMarket100.0100.0

srt:NorthAmerica, bwa:AirManagement


Revenue
Period End2021-06-302021-03-312020-06-302020-03-31
Value464532167387
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.313.311.717.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.313.311.717.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:NorthAmerica bwa:AirManagement100.0100.0100.0100.0

srt:NorthAmerica, bwa:Drivetrain


Revenue
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value535490456190423429456461445457451441448431398
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.312.518.013.318.616.818.318.117.317.818.216.416.116.716.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.312.518.013.318.616.818.318.117.317.818.216.416.116.716.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:NorthAmerica bwa:Drivetrain100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:NorthAmerica, bwa:EPropulsionDrivetrain


Revenue
Period End2021-06-302020-06-30
Value453190
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.113.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.113.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:NorthAmerica bwa:EPropulsionDrivetrain100.0100.0

srt:NorthAmerica, bwa:Engine


Revenue
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value487384167387368397407412386393392402363362
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.415.211.717.014.415.916.016.115.015.914.614.414.115.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.415.211.717.014.415.916.016.115.015.914.614.414.115.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:NorthAmerica bwa:Engine100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:NorthAmerica, bwa:FuelInjection


Revenue
Period End2021-06-302021-03-31
Value1.03.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:NorthAmerica bwa:FuelInjection100.0100.0

Revenues

us-gaap:Revenues

us-gaap:Revenues


Revenues
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value375840093926253414262279255924922551256625722478269427842586241623892407225922142329226821231884203119841991203221972084188518061893185117191695185619121773179118181730153314101421128611981027916819
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Selling General And Administrative Expense

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:SellingGeneralAndAdministrativeExpense


Selling
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value364377350204184213205230212226225230236253239224215218217209202188178148167168169174181173167157155159156151153169146151157165148150137130
Percentage of SellingGeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.79.48.98.112.99.38.09.28.38.88.89.38.89.19.39.39.09.19.69.58.78.38.47.98.28.58.58.68.28.38.98.78.28.69.18.98.28.88.38.48.79.59.710.69.710.1

us-gaap:SellingGeneralAndAdministrativeExpense us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome

us-gaap:ForeignExchangeContract, us-gaap:CashFlowHedging, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome


Selling
Period End2020-12-312020-09-302020-06-302019-12-312019-09-302019-06-30
Value-1.00.0-1.01.01.00.0
Percentage of SellingGeneralAndAdministrativeExpense-0.30.0-0.50.50.40.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.00.0-0.10.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ForeignExchangeContract us-gaap:CashFlowHedging us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome0.00.00.0-100.0-50.0-0.0

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value168631597116029108921033795029702101991023110104100959716977710034978798169288908388349007898889408841768777667522722872827457735769176964670565286400634662206281595860946226600755554811
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Assetsus-gaap:
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value21332359229812271091169615451262144411361114109011501460145014001487120710991122
Percentage of Assets13.321.722.212.911.216.615.112.514.311.711.410.911.814.915.615.416.813.412.212.7
Percentage of Assets13.321.722.212.911.216.615.112.514.311.711.410.911.814.915.615.416.813.412.212.7
Percentage of Assets us-gaap:CorporateNonSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments


Assetsus-gaap:
Period End2020-12-312020-09-302020-06-302019-12-312018-12-31
Value138968533803986118651
Percentage of Assets86.778.377.888.885.7
Percentage of Assets86.778.377.888.885.7
Percentage of Assets us-gaap:OperatingSegments100.0100.0100.0100.0100.0

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

us-gaap:OperatingSegments, bwa:AfterMarket


Assetsus-gaap:
Period End2020-12-31
Value806
Percentage of Assets5.0
Percentage of Assets5.0
Percentage of Assets us-gaap:OperatingSegments bwa:AfterMarket100.0

us-gaap:OperatingSegments, bwa:Drivetrain


Assetsus-gaap:
Period End2020-12-312020-09-302020-06-302019-12-312018-12-31
Value54124082382140753920
Percentage of Assets33.837.537.042.038.8
Percentage of Assets33.837.537.042.038.8
Percentage of Assets us-gaap:OperatingSegments bwa:Drivetrain100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, bwa:Engine


Assetsus-gaap:
Period End2020-12-312020-09-302020-06-302019-12-312018-12-31
Value57144451421845364731
Percentage of Assets35.640.940.846.846.9
Percentage of Assets35.640.940.846.846.9
Percentage of Assets us-gaap:OperatingSegments bwa:Engine100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, bwa:FuelInjection


Assetsus-gaap:
Period End2020-12-31
Value1964
Percentage of Assets12.3
Percentage of Assets12.3
Percentage of Assets us-gaap:OperatingSegments bwa:FuelInjection100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-06-302020-12-31
Value98419305
Percentage of Liabilities100.0100.0
Percentage of Assets58.458.1

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value168631597116029108921033795029702101991023110104100959716977710034978798169288908388349007898889408841768777667522722872827457735769176964670565286400634662206281595860946226600755554811
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value66496367642847574611472447064457439442744225406639603910371638253612340332183709368136933553371736863504361637303828368335603367319531063082304428732658238724052430230622582185
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets39.439.940.143.744.649.748.543.742.942.341.941.940.539.038.039.038.937.536.441.241.041.340.248.447.546.650.051.251.350.151.548.447.647.648.248.046.242.340.139.539.038.440.745.4

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value65376582616751654641374138363987384937193804349035433697354334013193310729113289320631823135330134013325297029513037302127982906273626012472249324202410213722672305215320591551
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets38.841.238.547.444.939.439.539.137.636.837.735.936.236.836.234.634.434.233.036.535.735.635.542.943.844.241.140.540.741.140.541.740.839.838.639.338.938.435.937.237.035.937.132.3

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value15531755165021212003901832916710494739361361409545414387358443518495392577103311071035797782771808939920817695715621481396359377372222449432187374357103188
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.211.010.319.519.49.58.69.06.94.97.33.73.74.15.64.24.23.95.05.85.54.46.513.414.313.811.010.710.311.013.613.212.210.711.29.87.76.36.06.26.03.78.10.00.00.07.40.00.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value15681755165021212003901832916710517739362362410545444
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.311.010.319.519.49.58.69.06.95.17.33.73.74.15.65.0

Receivables Net Current

us-gaap:ReceivablesNetCurrent

us-gaap:ReceivablesNetCurrent


Receivables
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value3063315329191977153517351921198320632065198720612131224720182046193919341689176418061861166515511573156414431466157115461248134713391318114712611327136911831237126912781023732
Percentage of ReceivablesNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets18.219.718.218.214.818.319.819.420.220.419.721.221.822.420.620.820.921.319.119.620.120.818.820.220.320.820.020.121.121.018.019.320.020.217.919.921.321.819.920.320.421.318.415.2

Inventory Net

us-gaap:InventoryNet

us-gaap:InventoryNet


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value156713611286815836847807810817807780810800800766773701656641687744756723523525506505531528516458454439449447475472480454482495490430314
Percentage of InventoryNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.38.58.07.58.18.98.37.98.08.07.78.38.28.07.87.97.67.27.37.68.38.58.26.86.86.77.07.37.17.06.66.56.56.97.07.57.67.77.67.98.08.27.86.5

us-gaap:InventoryNet us-gaap:StatementGeographical

country:US


Inventory
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value186193137147131122108109102100100
Percentage of InventoryNet14.523.917.719.220.516.921.523.922.822.123.2
Percentage of Assets1.22.01.41.51.51.41.51.61.61.71.8
Percentage of Assets country:US0.00.00.00.00.00.00.00.00.00.00.0

Inventory Finished Goods

us-gaap:InventoryFinishedGoods

us-gaap:InventoryFinishedGoods


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value39634232418617521120719519821319819018719718320717117117419121222322212513011911513612812311610611211311713112813112412012012211168
Percentage of InventoryFinishedGoods100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.32.12.01.71.72.22.11.91.92.12.02.01.92.01.92.11.81.92.02.12.42.52.51.61.71.61.61.91.71.71.71.51.71.71.82.12.12.12.12.01.92.02.01.4

Inventory L I F O Reserve

us-gaap:InventoryLIFOReserve

us-gaap:InventoryLIFOReserve


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value2418151514141514181816151313131414141513131414171817181816171615141616181817151714141311
Percentage of InventoryLIFOReserve100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.10.10.10.20.10.20.20.20.20.10.10.10.20.20.20.20.20.20.20.20.20.20.20.30.20.20.20.20.20.20.30.20.30.30.30.30.30.20.20.20.2

Inventory Raw Materials And Supplies

us-gaap:InventoryRawMaterialsAndSupplies

us-gaap:InventoryRawMaterialsAndSupplies


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1014875827529554536502515520496485512502489469454424387378397437439412327325321319322324317279284263271264276273272254283289282244187
Percentage of InventoryRawMaterialsAndSupplies100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.05.55.24.95.45.65.25.05.14.94.85.35.14.94.84.64.64.34.34.44.94.94.74.34.24.34.44.44.44.34.04.13.94.24.14.44.44.34.34.64.74.74.43.9

Other Assets Current

us-gaap:OtherAssetsCurrent

us-gaap:OtherAssetsCurrent


Other
Period End2021-06-302021-03-312020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value8978729882585146403022262323
Percentage of OtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.50.50.41.00.80.60.60.50.60.40.30.40.40.5

Prepaid Expense And Other Assets Current

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:PrepaidExpenseAndOtherAssetsCurrent


Prepaid
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value3393133122522672582762782592802501921851711451671651571371471601721691371451391301211139883988277671011009382908879
Percentage of PrepaidExpenseAndOtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.02.01.92.32.62.72.82.72.52.82.52.01.91.71.51.71.81.71.61.61.81.91.91.81.91.81.81.71.51.31.21.41.21.21.11.61.61.51.41.51.41.4

Noncurrent Assets

us-gaap:NoncurrentAssets

us-gaap:NoncurrentAssets


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value459129342903286325012448209319391788166415421490
Percentage of NoncurrentAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets28.630.228.829.328.327.729.028.027.927.927.831.0

us-gaap:NoncurrentAssets us-gaap:StatementGeographical

bwa:OtherEurope


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value620285452426298276258257225194173138
Percentage of NoncurrentAssets13.59.715.614.911.911.312.413.312.611.711.39.3
Percentage of Assets3.92.94.54.43.43.13.63.73.53.33.12.9
Percentage of Assets bwa:OtherEurope0.00.00.00.00.00.00.00.00.00.00.00.0

bwa:OtherForeign


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value208152150157143261233205187164139116
Percentage of NoncurrentAssets4.55.25.25.55.710.711.210.610.59.99.07.8
Percentage of Assets1.31.61.51.61.63.03.23.02.92.82.52.4
Percentage of Assets bwa:OtherForeign0.00.00.00.00.00.00.00.00.00.00.00.0

country:CN


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value105560558955438435529923818414810466
Percentage of NoncurrentAssets23.020.620.319.415.414.514.312.310.38.96.84.4
Percentage of Assets6.66.25.85.74.44.04.13.42.92.51.91.4
Percentage of Assets country:CN0.00.00.00.00.00.00.00.00.00.00.00.0

country:DE


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value338328371413370380413430432420447500
Percentage of NoncurrentAssets7.411.212.814.414.815.619.822.224.225.329.033.6
Percentage of Assets2.13.43.74.24.24.35.76.26.87.18.110.4
Percentage of Assets country:DE0.00.00.00.00.00.00.00.00.00.00.00.0

country:GB


Noncurrent
Period End2020-12-312019-12-312018-12-31
Value2295653
Percentage of NoncurrentAssets5.01.91.8
Percentage of Assets1.40.60.5
Percentage of Assets country:GB0.00.00.0

country:HU


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value184164153147122112736664565358
Percentage of NoncurrentAssets4.05.65.35.24.94.63.53.43.63.43.43.9
Percentage of Assets1.11.71.51.51.41.31.01.01.01.01.01.2
Percentage of Assets country:HU0.00.00.00.00.00.00.00.00.00.00.00.0

country:KR


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value301221235244208218185165140
Percentage of NoncurrentAssets6.67.58.18.58.38.98.98.57.9
Percentage of Assets1.92.32.32.52.42.52.62.42.2
Percentage of Assets country:KR0.00.00.00.00.00.00.00.00.0

country:MX


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value36724722320113613296
Percentage of NoncurrentAssets8.08.47.77.05.45.44.6
Percentage of Assets2.32.52.22.11.51.51.3
Percentage of Assets country:MX0.00.00.00.00.00.00.0

country:PL


Noncurrent
Period End2020-12-312019-12-312018-12-31
Value352180171
Percentage of NoncurrentAssets7.76.15.9
Percentage of Assets2.21.91.7
Percentage of Assets country:PL0.00.00.0

country:US


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value937752728719799800586531508492466469
Percentage of NoncurrentAssets20.425.625.125.131.932.728.027.428.429.630.231.5
Percentage of Assets5.87.87.27.39.09.18.17.77.98.38.49.8
Percentage of Assets country:US0.00.00.00.00.00.00.00.00.00.00.00.0

srt:Europe


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value1723957976987830
Percentage of NoncurrentAssets37.532.633.634.533.2
Percentage of Assets10.79.99.710.19.4
Percentage of Assets srt:Europe0.00.00.00.00.0

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:ConstructionInProgress


Property
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value432291335334360326350395425371362386410381378366338331344365386389373342310282310282272265277249243229201192206194168128
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.72.73.23.53.73.23.43.94.23.83.73.84.23.94.14.03.83.73.84.14.45.14.84.64.33.94.23.83.93.84.13.83.83.63.23.13.53.22.72.3
Percentage of Assets us-gaap:ConstructionInProgress0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:LandAndBuilding


Property
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value1375905863869860843870879871880892932899874838807781807806814779720772754784799786774753738687706717695691697687690714669
Percentage of PropertyPlantAndEquipmentGross318.3311.0257.6260.2238.9258.6248.6222.5204.6236.9246.2241.4219.0229.0221.5220.2231.1244.0234.0222.8201.8185.2206.6220.3252.8283.2253.0273.8276.9278.7247.9283.3294.3303.8343.3361.6332.6355.0425.0522.1
Percentage of Assets8.68.38.39.18.98.38.58.78.69.19.19.39.28.99.08.98.89.09.09.18.89.49.910.010.911.010.510.510.910.610.310.811.211.011.111.111.511.311.512.0
Percentage of Assets us-gaap:LandAndBuilding0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:MachineryAndEquipment


Property
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value4333319730593056297128942959288928512796276728162734265925622472237123832340230321541910191218631940195319971970189718481893226222822201214120842006201620911961
Percentage of PropertyPlantAndEquipmentGross1003.01098.6913.1915.0825.3887.7845.4731.4669.6752.5764.0729.2666.1696.5677.1674.3701.1720.0678.9630.0557.5491.1511.9543.9625.1691.9642.8697.1696.8697.4682.5906.8936.6961.01063.51081.1970.51036.41244.71529.8
Percentage of Assets27.029.429.632.230.628.428.928.628.228.828.328.127.927.127.627.226.826.526.025.824.424.924.624.826.826.826.826.827.426.528.234.735.734.734.433.233.733.133.635.3
Percentage of Assets us-gaap:MachineryAndEquipment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Long Term Investments

us-gaap:LongTermInvestments

us-gaap:LongTermInvestments


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value546557820305315315318694690617592610610581547559528530502512508487460438437422403460469440405402392377382380363345345354336319307257
Percentage of LongTermInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.23.55.12.83.03.33.36.86.76.15.96.36.25.85.65.75.75.85.75.75.75.55.25.75.65.65.66.36.36.05.95.85.85.86.06.05.85.55.85.85.45.35.55.3

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value33252596262718551830181818421818184518481853185618581890188118821734170817021730176717741757118311841168120512101243124411971190117211701181117211611200118612031240123111131061
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets19.716.316.417.017.719.119.017.818.018.318.419.119.018.819.219.218.718.819.319.219.719.819.915.415.315.516.716.616.716.917.317.117.517.918.518.518.719.119.919.719.920.520.022.1

us-gaap:Goodwill us-gaap:BusinessAcquisition

bwa:AKASOL


Goodwillus-gaap:
Period End2021-06-04
Value707
Percentage of Goodwill0.0
Percentage of Assets0.0
Percentage of Assets bwa:AKASOL0.0

bwa:DelphiTechnologiesPLC


Goodwillus-gaap:
Period End2021-06-302021-03-312020-10-01
Value733711710
Percentage of Goodwill22.027.40.0
Percentage of Assets4.34.50.0
Percentage of Assets bwa:DelphiTechnologiesPLC0.00.00.0

us-gaap:Goodwill us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments

bwa:DelphiTechnologiesPLC, bwa:AfterMarket


Goodwillus-gaap:
Period End2021-06-302021-03-312020-10-01
Value298283287
Percentage of Goodwill9.010.90.0
Percentage of Assets1.81.80.0
Percentage of Assets bwa:DelphiTechnologiesPLC bwa:AfterMarket0.00.00.0

bwa:DelphiTechnologiesPLC, bwa:AirManagement


Goodwillus-gaap:
Period End2021-06-302021-03-312020-10-01
Value151147151
Percentage of Goodwill4.55.70.0
Percentage of Assets0.90.90.0
Percentage of Assets bwa:DelphiTechnologiesPLC bwa:AirManagement0.00.00.0

bwa:DelphiTechnologiesPLC, bwa:EPropulsionDrivetrain


Goodwillus-gaap:
Period End2021-06-302021-03-312020-10-01
Value284281272
Percentage of Goodwill8.510.80.0
Percentage of Assets1.71.80.0
Percentage of Assets bwa:DelphiTechnologiesPLC bwa:EPropulsionDrivetrain0.00.00.0

us-gaap:Goodwill us-gaap:StatementBusinessSegments

bwa:AfterMarket


Goodwillus-gaap:
Period End2021-06-302021-03-312020-12-31
Value311288299
Percentage of Goodwill9.411.111.4
Percentage of Assets1.81.81.9
Percentage of Assets bwa:AfterMarket0.00.00.0

bwa:AirManagement


Goodwillus-gaap:
Period End2021-06-302021-03-312020-12-31
Value17119981015
Percentage of Goodwill51.538.438.6
Percentage of Assets10.16.26.3
Percentage of Assets bwa:AirManagement0.00.00.0

bwa:Drivetrain


Goodwillus-gaap:
Period End2021-03-312020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value13101313100710121024880921345366359353263
Percentage of Goodwill50.550.054.754.654.451.752.428.730.730.429.823.7
Percentage of Assets8.28.210.410.010.510.010.44.85.35.65.94.7
Percentage of Assets bwa:Drivetrain0.00.024.725.826.227.425.019.420.521.722.621.4

bwa:EPropulsionDrivetrain


Goodwillus-gaap:
Period End2021-06-302020-12-31
Value13031313
Percentage of Goodwill39.250.0
Percentage of Assets7.78.2
Percentage of Assets bwa:EPropulsionDrivetrain0.00.0

bwa:Engine


Goodwillus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value1015835841857822836860830822832850
Percentage of Goodwill38.645.345.445.648.347.671.369.369.670.276.3
Percentage of Assets6.38.68.38.89.39.511.912.012.814.015.3
Percentage of Assets bwa:Engine0.018.417.818.119.920.821.923.624.925.025.9

Intangible Assets Net Excluding Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill


Intangible
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value117210591096371375383402404421433439450461485492509453455463494525539543151169206243168148
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.06.66.83.43.64.04.14.04.14.34.44.64.74.85.05.24.95.05.25.55.86.06.22.12.53.24.13.03.1

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:FiniteLivedIntangibleAssetsNet


Finite
Period End2021-06-302021-03-312020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value1006893930347384433408463132139170199124111
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.05.65.83.63.84.44.65.21.82.02.73.32.22.3

us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass

bwa:Miscellaneous


Finite
Period End2021-06-302021-03-312020-12-312019-12-31
Value172.03.06.0
Percentage of FiniteLivedIntangibleAssetsNet1.70.20.31.7
Percentage of Assets0.10.00.00.1
Percentage of Assets bwa:Miscellaneous0.00.00.00.0

bwa:PatentedAndUnpatentedTechnology


Finite
Period End2021-06-302021-03-312020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value361299306849110466865049535851
Percentage of FiniteLivedIntangibleAssetsNet35.933.532.924.223.724.216.318.637.835.331.629.341.5
Percentage of Assets2.11.91.90.90.91.10.81.00.70.70.81.00.9
Percentage of Assets bwa:PatentedAndUnpatentedTechnology0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CustomerRelationships


Finite
Period End2021-06-302021-03-312020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value62859262125728832634037479901161366972
Percentage of FiniteLivedIntangibleAssetsNet62.466.366.874.175.175.483.280.859.764.768.468.556.365.6
Percentage of Assets3.73.73.92.62.93.33.94.21.11.31.82.31.31.5
Percentage of Assets us-gaap:CustomerRelationships0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Deferred Tax Assets Liabilities Net

us-gaap:DeferredTaxAssetsLiabilitiesNet

us-gaap:DeferredTaxAssetsLiabilitiesNet


Deferred
Period End2020-12-312018-12-312018-09-302018-06-302017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value151461701705936993224241248245249212
Percentage of DeferredTaxAssetsLiabilitiesNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.11.51.81.70.64.21.13.13.53.94.14.54.4

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2021-06-302021-03-312020-12-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value209219211858895980.0
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets1.21.41.30.90.90.91.00.0

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value748728728372395406379484535592502481477455458710714729753462477458495578582556554591616623577590607614575601602628625631661678531450
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.44.64.53.43.84.33.94.75.25.95.05.04.94.54.77.27.78.08.55.15.35.15.67.57.57.47.78.18.38.58.38.59.19.49.09.59.710.010.510.410.611.39.69.4

Accounts Payable And Accrued Liabilities Current

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent


Accounts
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value2127165417931977204820892056214420092122216022702015190418411847176317901819186614361528148415301503162215621383137713591311128712761279129112971346136213181224977
Percentage of AccountsPayableAndAccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets19.516.018.920.420.120.420.321.220.721.721.523.220.520.520.320.919.619.920.321.118.719.719.721.220.721.821.220.019.820.320.120.120.120.620.621.822.121.921.922.020.3

Accrued Income Taxes Current

us-gaap:AccruedIncomeTaxesCurrent

us-gaap:AccruedIncomeTaxesCurrent


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value12411210223194566585357589.8124440635954686193244928359.314137.69.8384340427255372829524538390.0
Percentage of AccruedIncomeTaxesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.70.70.60.20.20.50.70.60.50.60.60.10.10.40.40.60.60.60.80.71.00.30.60.40.50.10.20.20.10.10.60.60.60.61.10.90.60.50.50.90.70.60.70.0

Contract With Customer Liability Current

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:ContractWithCustomerLiabilityCurrent


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value16142212121310.01211121312111212
Percentage of ContractWithCustomerLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.10.10.10.10.10.10.10.10.10.10.10.1

us-gaap:ContractWithCustomerLiabilityCurrent us-gaap:BalanceSheetLocation

bwa:AccountsPayableAndAccruedExpenses


Contract
Period End2020-12-312019-12-312018-12-31
Value2210.013
Percentage of ContractWithCustomerLiabilityCurrent100.0100.097.0
Percentage of Assets0.10.10.1
Percentage of Assets bwa:AccountsPayableAndAccruedExpenses0.00.00.0

us-gaap:OtherCurrentLiabilities


Contract
Period End2021-06-302021-03-312020-12-31
Value161422
Percentage of ContractWithCustomerLiabilityCurrent100.0100.0100.0
Percentage of Assets0.10.10.1
Percentage of Assets us-gaap:OtherCurrentLiabilities0.00.00.0

Dividends Payable Current

us-gaap:DividendsPayableCurrent

us-gaap:DividendsPayableCurrent


Dividends
Period End2021-06-302021-03-312020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value39396.0141717152015169.5114.25.4
Percentage of DividendsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.20.00.10.20.20.20.20.20.20.10.20.10.1

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value38623921381021991970212423292525231322992398209922362436242523812106215120912445239923102357153916351601216821222170191016231674171615831603156815131881190519241936153213921046
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets22.924.623.820.219.122.424.024.822.622.823.821.622.924.324.824.322.723.723.727.126.725.826.720.021.121.330.029.229.126.023.524.025.624.225.024.724.329.932.031.631.125.525.121.7

Long Term Debt Current

us-gaap:LongTermDebtCurrent

us-gaap:LongTermDebtCurrent


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value124.04.02.0252252252386140140139142.86.315201623191881631631608.011182217166.96.80.30.11.14.35.5103773813673635.66.15.1
Percentage of LongTermDebtCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.00.00.02.42.72.63.81.41.41.40.20.00.10.20.20.20.30.22.11.81.81.80.10.20.20.30.20.20.10.10.00.00.00.10.10.26.06.46.05.80.10.10.1

Notes Payable Current

us-gaap:NotesPayableCurrent

us-gaap:NotesPayableCurrent


Notes
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value13514949297286286419171164172507019484303141255175525515466441747210762360554133820125331622923923118618419615716517612869
Percentage of NotesPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.30.30.42.93.02.94.11.71.61.70.50.71.90.93.11.52.82.05.85.75.25.01.00.91.48.68.37.34.62.93.64.73.53.73.63.02.93.32.62.72.92.31.4

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityCurrent


Operating
Period End2021-06-302021-03-312020-12-312019-12-312018-12-31
Value484947180.0
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.00.0
Percentage of Assets0.30.30.30.20.0

Other Liabilities Current

us-gaap:OtherLiabilitiesCurrent

us-gaap:OtherLiabilitiesCurrent


Other
Period End2021-06-302021-03-312020-12-312019-12-31
Value148213851409718
Percentage of OtherLiabilitiesCurrent100.0100.0100.0100.0
Percentage of Assets8.88.78.87.4

Long Term Debt

us-gaap:LongTermDebt

us-gaap:LongTermDebt


Long
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value27893014191619262042206920632080210021052137211921122094206320632277228322952285174217431749738723720103410271018913972828871966122511321234128312651058778
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets25.629.220.219.920.020.220.420.621.621.521.321.721.522.622.723.425.325.425.725.822.722.423.310.29.99.714.114.914.613.614.912.913.715.519.519.020.320.621.119.016.2

us-gaap:LongTermDebt us-gaap:DebtInstrument, us-gaap:LongtermDebtType

bwa:SeniorNotesDueJuly2027, us-gaap:SeniorNotes


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value108910891088108810870.0
Percentage of LongTermDebt0.00.00.039.036.10.0
Percentage of Assets6.56.86.810.010.50.0
Percentage of Assets bwa:SeniorNotesDueJuly2027 us-gaap:SeniorNotes0.00.00.00.00.00.0

bwa:SeniorNotesDueMarch2025, us-gaap:SeniorNotes


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value498498498497497497
Percentage of LongTermDebt0.00.00.017.816.525.8
Percentage of Assets3.03.13.14.64.85.1
Percentage of Assets bwa:SeniorNotesDueMarch2025 us-gaap:SeniorNotes0.00.00.00.00.00.0

bwa:SeniorNotesDueMay2031, us-gaap:SeniorNotes


Long
Period End2021-06-30
Value1164
Percentage of LongTermDebt0.0
Percentage of Assets6.9
Percentage of Assets bwa:SeniorNotesDueMay2031 us-gaap:SeniorNotes0.0

bwa:SeniorNotesDueNovember2022, us-gaap:SeniorNotes


Long
Period End2021-03-312020-12-312020-09-302020-06-302019-12-31
Value585609584560558
Percentage of LongTermDebt0.00.020.918.629.0
Percentage of Assets3.73.85.45.45.8
Percentage of Assets bwa:SeniorNotesDueNovember2022 us-gaap:SeniorNotes0.00.00.00.00.0

bwa:SeniorNotesDueOctober2025, us-gaap:SeniorNotes


Long
Period End2021-06-302021-03-312020-12-31
Value901906912
Percentage of LongTermDebt0.00.00.0
Percentage of Assets5.35.75.7
Percentage of Assets bwa:SeniorNotesDueOctober2025 us-gaap:SeniorNotes0.00.00.0

bwa:SeniorNotesDueOctober2025Member, us-gaap:SeniorNotes


Long
Period End2020-12-31
Value912
Percentage of LongTermDebt0.0
Percentage of Assets5.7
Percentage of Assets bwa:SeniorNotesDueOctober2025Member us-gaap:SeniorNotes0.0

bwa:TermLoanFacilitiesAndOther, us-gaap:MediumTermNotes


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value9521227.07.07.0
Percentage of LongTermDebt0.00.00.00.30.20.4
Percentage of Assets0.60.10.10.10.10.1
Percentage of Assets bwa:TermLoanFacilitiesAndOther us-gaap:MediumTermNotes0.00.00.00.00.00.0

Long Term Debt Noncurrent

us-gaap:LongTermDebtNoncurrent

us-gaap:LongTermDebtNoncurrent


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value4348370837382787276216641674165619291923194020852102213121032091207720402043208921192131212417341731173071670570410271021101891397182386695684875186791912591051773
Percentage of LongTermDebtNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets25.823.223.325.626.717.517.316.218.919.019.221.521.521.221.521.322.422.523.123.223.623.824.022.622.323.09.99.79.414.014.814.613.614.912.913.715.413.512.614.214.821.018.916.1

Long Term Debt And Capital Lease Obligations

us-gaap:LongTermDebtAndCapitalLeaseObligations

us-gaap:LongTermDebtAndCapitalLeaseObligations


Long
Period End2021-06-302021-03-312020-12-312019-12-31
Value4348370837381674
Percentage of LongTermDebtAndCapitalLeaseObligations100.0100.0100.0100.0
Percentage of Assets25.823.223.317.3

Deferred Income Tax Liabilities Net

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:DeferredIncomeTaxLiabilitiesNet


Deferred
Period End2021-06-302021-03-312020-12-312019-12-31
Value264235276125
Percentage of DeferredIncomeTaxLiabilitiesNet100.0100.0100.0100.0
Percentage of Assets1.61.51.71.3

Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent


Pension
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value541552576290299302306273283292298269284300301301290292294293302313312306311315326295307313312507502503509449451457457435450447438473
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.23.53.62.72.93.23.22.72.82.93.02.82.93.03.13.13.13.23.33.33.43.53.54.04.04.24.54.14.14.34.57.37.57.78.07.17.37.37.77.17.27.47.99.8

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

country:US, us-gaap:PensionPlansDefinedBenefit


Pension
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value1421374352
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent2.46.912.414.318.0
Percentage of Assets0.10.20.40.40.6
Percentage of Assets country:US us-gaap:PensionPlansDefinedBenefit0.00.00.00.00.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Pension
Period End2020-12-312019-12-312018-12-312017-12-31
Value506214186164
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent87.869.962.454.6
Percentage of Assets3.22.21.81.7
Percentage of Assets us-gaap:ForeignPlan us-gaap:PensionPlansDefinedBenefit0.00.00.00.0

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Pension
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value56717593105
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent9.723.225.331.135.8
Percentage of Assets0.30.70.71.01.2
Percentage of Assets us-gaap:OtherPostretirementBenefitPlansDefinedBenefit0.00.00.00.00.0

Minority Interest

us-gaap:MinorityInterest

us-gaap:MinorityInterest


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value373287296161152140138121108111119103931051099079768380746777706458746964537167605563606062656067475137
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.21.81.81.51.51.51.41.21.11.11.21.11.01.01.10.90.90.80.90.90.80.80.90.90.80.81.01.00.90.71.01.00.90.91.01.01.01.01.11.01.10.80.90.8

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value109011361181698543548549444470459357351352389355339321306275387410423415318336313326358380368326328316309318357365373391402421413362295
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.57.17.46.45.35.85.74.44.64.53.53.63.63.93.63.53.53.43.14.34.64.74.74.14.34.24.54.95.15.04.74.74.74.75.05.65.95.96.66.66.86.96.56.1

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent


Operating
Period End2021-06-302021-03-312020-12-312019-12-31
Value16817617267
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0
Percentage of Assets1.01.11.10.7

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2020-12-31
Value42
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0
Percentage of Assets0.3

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2020-12-31
Value27
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0
Percentage of Assets0.2

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2020-12-31
Value23
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0
Percentage of Assets0.1

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-31
Value22
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0
Percentage of Assets0.1

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-31
Value73
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0
Percentage of Assets0.5

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value21985879397
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0
Percentage of Assets1.40.90.90.91.0

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2020-12-31
Value238
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0
Percentage of Assets1.5

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2020-12-31
Value19
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0
Percentage of Assets0.1

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value66496367642847574611472447064457439442744225406639603910371638253612340332183709368136933553371736863504361637303828368335603367319531063082304428732658238724052430230622582185
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets39.439.940.143.744.649.748.543.742.942.341.941.940.539.038.039.038.937.536.441.241.041.340.248.447.546.650.051.251.350.151.548.447.647.648.248.046.242.340.139.539.038.440.745.4

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-31
Value702266546724491847634864484445784502438543444170405440153825391636913479330137903756376136313787375135623690380038933737363234343256316131463105293427202453246524982353230922222037
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets41.641.741.945.246.151.249.944.944.043.443.042.941.540.039.139.939.738.337.442.141.842.141.149.348.347.451.152.252.250.852.549.348.648.449.248.947.243.341.240.540.139.241.646.20.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Stockholders
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value-330.0-222.0-229.0-228.0-230.0-204.0-208.0-227.0-235.0-198.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-4.9-4.5-4.8-4.7-4.7-4.5-4.6-5.2-5.4-5.2
Percentage of Assets-2.1-2.0-2.2-2.4-2.4-2.0-2.0-2.2-2.3-2.0
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentIncludingPortionAttributableToNoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-06-302020-03-312019-12-31
Value-320.0-322.0-330.0-229.0-228.0-230.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-4.6-4.8-4.9-4.8-4.7-4.7
Percentage of Assets-1.9-2.0-2.1-2.2-2.4-2.4
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustmentIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.0

us-gaap:AccumulatedForeignCurrencyAdjustmentIncludingPortionAttributableToNoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-06-302020-03-312019-12-31
Value-351.0-408.0-321.0-557.0-571.0-497.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-5.0-6.1-4.8-11.7-11.7-10.3
Percentage of Assets-2.1-2.6-2.0-5.4-6.0-5.1
Percentage of Assets us-gaap:AccumulatedForeignCurrencyAdjustmentIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.0

us-gaap:AccumulatedGainLossCashFlowHedgeIncludingNoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-06-302020-03-31
Value-2.0-6.0-1.0-2.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-0.0-0.1-0.0-0.0
Percentage of Assets-0.0-0.0-0.0-0.0
Percentage of Assets us-gaap:AccumulatedGainLossCashFlowHedgeIncludingNoncontrollingInterest0.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2020-12-312020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value-651.0-801.0-727.0-779.0-670.0-675.0-674.1-623.0-582.0-444.0-490.0-722.1-610.2-383.6-14.0-121.3-150.8-53.714-85.9127
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-9.7-16.5-15.0-17.0-14.9-15.4-15.5-14.9-14.4-11.1-12.8-21.9-16.8-10.4-0.4-3.9-6.1-2.30.7-4.20.0
Percentage of Assets-4.1-8.4-7.5-7.6-6.5-6.7-6.7-6.4-6.0-4.4-5.0-8.2-6.9-5.3-0.2-1.9-2.5-1.00.30.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedTranslationAdjustment


Stockholders
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value-321.0-508.0-557.0-571.0-497.0-577.0-463.0-450.0-441.0-294.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-4.8-10.3-11.7-11.7-10.3-12.6-10.3-10.3-10.2-7.7
Percentage of Assets-2.0-4.7-5.4-6.0-5.1-5.7-4.5-4.5-4.4-3.0
Percentage of Assets us-gaap:AccumulatedTranslationAdjustment0.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value26022589261411281115110911451129111611111145112711101102111811041109111211211160113411001034977943
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest37.138.938.922.923.422.823.624.724.825.326.427.027.427.429.233.430.630.130.936.946.247.646.548.00.0
Percentage of Assets15.416.216.310.410.811.711.811.110.911.011.311.611.411.011.412.512.615.416.218.119.019.821.50.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AociIncludingPortionAttributableToNoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value-673.0-736.0-651.0-730.0-787.0-801.0-727.0-779.0-670.0-675.0-674.0-490.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-9.6-11.1-9.7-14.8-16.5-16.5-15.0-17.0-14.9-15.4-15.5-12.8
Percentage of Assets-4.0-4.6-4.1-6.7-7.6-8.4-7.5-7.6-6.5-6.7-6.7-5.0
Percentage of Assets us-gaap:AociIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value3.03.03.03.03.03.03.03.03.03.02.53.03.03.02.52.52.52.52.51.21.21.21.21.21.2
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.00.00.10.10.10.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value37328729616115214013812110811111910494105109837774716365513731117
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest5.34.34.43.33.22.92.82.62.42.52.72.52.32.62.92.52.12.02.02.02.72.21.71.50.0
Percentage of Assets2.21.81.81.51.51.51.41.21.11.11.21.11.01.01.10.90.91.01.01.01.10.90.80.00.0
Percentage of Assets us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value6527632162965979590360365942575755985461533651424973473645314215421037173177261121101560119312001295
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest93.095.093.6121.6123.9124.1122.7125.8124.3124.5122.8123.3122.7117.9118.4127.7115.9100.787.583.086.067.553.758.90.0
Percentage of Assets38.739.639.354.957.163.561.256.454.754.052.952.950.947.246.347.747.651.445.940.835.428.124.80.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value-1810.0-1810.0-1834.0-1623.0-1623.0-1623.0-1657.0-1653.0-1653.0-1626.0-1584.8-1581.0-1544.0-1486.0-1445.4-1381.6-1158.4-832.2-727.2569-707.1-349.5-57.9-87.4-46.5
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-25.8-27.2-27.3-33.0-34.1-33.4-34.2-36.1-36.7-37.1-36.5-37.9-38.1-37.0-37.8-41.8-31.9-22.5-20.018.1-28.8-15.1-2.6-4.30.0
Percentage of Assets-10.7-11.3-11.4-14.9-15.7-17.1-17.1-16.2-16.2-16.1-15.7-16.3-15.8-14.8-14.8-15.6-13.1-11.5-10.58.9-11.9-6.3-1.20.00.0
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value3000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.02500000.02500000.02500000.02500000.02500000.02500000.02500000.02500000.02500000.02500000.02500000.02500000.02500000.02500000.02500000.02500000.02500000.02500000.02500000.02500000.02500000.01200000.01200000.01200000.01200000.01200000.01200000.01200000.01200000.01200000.01200000.01200000.01200000.01200000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Additional Paid In Capital

us-gaap:AdditionalPaidInCapital

us-gaap:AdditionalPaidInCapital


Additional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value26022589261411281115110911451129111611111145112711101102111811001088107711041092109110851109110810991096111211041097109211211132112911301160118514771205113411191135112011001034
Percentage of AdditionalPaidInCapital100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets15.416.216.310.410.811.711.811.110.911.011.311.611.411.011.411.211.711.912.512.112.112.112.614.414.214.615.415.214.714.816.216.316.817.318.118.723.819.219.018.418.218.719.821.5

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value65276321629659795903603659425757559854615336512749584722453147124557437442154538448243464210411339853866371736063469330831773065292727532611249023882268211019881846168415601193
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets38.739.639.354.957.163.561.256.454.754.052.952.850.747.146.348.049.148.247.750.449.948.647.653.551.351.451.449.546.545.045.944.043.742.240.839.238.436.135.432.629.728.028.124.8

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value-673.0-736.0-651.0-730.0-787.0-801.0-727.0-779.0-670.0-675.0-674.1-609.2-567.6-430.3-490.0-545.7-606.4-674.2-722.1-571.0-593.8-540.8-610.2-576.7-539.5-616.9-383.6-199.9-18.6-16.8-14.0-91.0-187.8-189.2-121.3-120.6-182.6-94.8-150.8-85.06531-53.714
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-4.0-4.6-4.1-6.7-7.6-8.4-7.5-7.6-6.5-6.7-6.7-6.3-5.8-4.3-5.0-5.6-6.5-7.4-8.2-6.3-6.6-6.0-6.9-7.5-6.9-8.2-5.3-2.7-0.2-0.2-0.2-1.3-2.8-2.9-1.9-1.9-2.9-1.5-2.5-1.41.10.5-1.00.3

Treasury Stock Value

us-gaap:TreasuryStockValue

us-gaap:TreasuryStockValue


Treasury
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1810181018341623162316231657165316531626158415811544148614451444143013771381135213001199115893186184483278272270272774067458956951081172170761861853134957
Percentage of TreasuryStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets10.711.311.414.915.717.117.116.216.216.115.716.315.814.814.814.715.415.215.615.014.513.413.112.111.111.211.510.79.79.610.510.610.19.08.98.013.011.511.910.19.98.86.31.2

Minority Interest

us-gaap:MinorityInterest

us-gaap:MinorityInterest


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value373287296161152140138121108111119103931051099079768380746777706458746964537167605563606062656067475137
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.21.81.81.51.51.51.41.21.11.11.21.11.01.01.10.90.90.80.90.90.80.80.90.90.80.81.01.00.90.71.01.00.90.91.01.01.01.01.11.01.10.80.90.8

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value280342376481642631843574274057025127034556224338604422303273439715028632255220279462042142831633623227930235223291-41.422610414464
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.58.59.619.04.511.57.214.316.71.622.210.110.01.221.59.314.22.519.610.414.11.518.78.014.11.612.810.812.72.210.811.915.00.919.613.715.01.613.312.516.0-2.414.87.410.15.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-914000000.0-185000000.0-617000000.0-102000000.0-27000000.0-120000000.0-109000000.0-103000000.0-173000000.0-104000000.0-121500000.0-126400000.0-105700000.0-160900000.0-181600000.0-315500000.0-122500000.0-132700000.0-61800000.0-113500000.0-125700000.0-103200000.0-1331100000.0-132900000.0-143300000.0-151800000.0-164000000.0-139400000.0-130600000.0-231100000.0-109700000.0-96000000.0-105500000.0-73600000.0-122900000.0-38000000.0-91900000.0-92400000.0-95700000.0-112800000.0-88200000.0-267800000.0-87400000.0-78900000.0-214900000.0-48300000.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-24.3-4.6-15.7-4.0-1.9-5.3-4.3-4.1-6.8-4.1-4.7-5.1-3.9-5.8-7.0-13.1-5.1-5.5-2.7-5.1-5.4-4.5-62.7-7.1-7.1-7.7-8.2-6.9-5.9-11.1-5.8-5.3-5.6-4.0-7.1-2.2-5.0-4.8-5.4-6.3-4.8-15.5-5.7-5.6-15.1-3.8

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value460-51.0-274.0-288.01061-62.0-172.0-30.0-65.0-153.0-60.0-107.7-212.2-3.5-256.3108-198.5-15.8-423.7-99.2-86.1-124.8497-82.6-94.7416-52.2-20.4-185.156-76.2-57.0-61.959-137.5-61.4-87.097-151.2-85.0-62.178-119.7188-103.821
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.2-1.3-7.0-11.474.4-2.7-6.7-1.2-2.5-6.0-2.3-4.3-7.9-0.1-9.94.5-8.3-0.7-18.8-4.5-3.7-5.523.4-4.4-4.721.0-2.6-1.0-8.42.7-4.0-3.2-3.33.2-8.0-3.6-4.75.1-8.5-4.7-3.44.5-7.813.4-7.31.7

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

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-187.0105-471.0118110269-84.0206193-222.03770.0-48.0-135.0
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-5.02.6-12.04.777.33.0-3.38.37.6-8.714.70.0-1.8-4.8

Deferred Income Tax Expense Benefit

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:DeferredIncomeTaxExpenseBenefit


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-35.0-64.06880-19.0-5.0159-7.037-2.0-33.4-2.1-42.78.22520.71820-265.6-22.8-0.423-2.94.51110-2.67.22215-14.11.36.7-17.0-10.35.216-22.123-9.53.6-18.2-12.3-24.2-11.9-3.8
Percentage of DeferredIncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Inventories

us-gaap:IncreaseDecreaseInInventories

us-gaap:IncreaseDecreaseInInventories


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value15610431-43.0-18.058-20.0169.031-27.11834271339255.5-9.031-3.8178.23.61030-11.132107.91.84.1-9.718-33.2117.419-8.916-2.633-6.9343.347
Percentage of IncreaseDecreaseInInventories100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Other Operating Capital Net

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value74-42.0-64.0-15.07.0-4.0-3.01610.0-2.0121915-4.1143633-1.672-15.96.58.524389.0237820283114128-4.7-10.8302711-3.2385.15.2-2.3-11.4-6.86.57.8
Percentage of IncreaseDecreaseInOtherOperatingCapitalNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value280342376481642631843574274057025127034556224338604422303273439715028632255220279462042142831633623227930235223291-41.422610414464
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.58.59.619.04.511.57.214.316.71.622.210.110.01.221.59.314.22.519.610.414.11.518.78.014.11.612.810.812.72.210.811.915.00.919.613.715.01.613.312.516.0-2.414.87.410.15.0

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value24765358111-98.0129220194172160230203271225-146.2184212189-293.38316416412515714817813916619015914116617414212110112015812214116212411110682765217-35.9-7.0
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.61.69.14.4-6.95.78.67.86.76.28.98.210.18.1-5.77.78.97.9-13.03.87.17.25.98.47.39.07.08.28.77.67.59.29.27.77.16.06.58.36.97.98.97.27.37.65.85.94.41.7-3.9-0.9

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value24765358111-98.0129220194172160229204272225
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.099.9100.1100.1100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.61.69.14.4-6.95.78.67.86.76.28.98.210.18.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value27494385129-84.0137237207182171247215284236-132.0194221199-281.59317517313516515718714717319916714917218014812610512616312714616712911511187815620-33.9-6.3
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.32.39.85.1-5.96.09.38.37.16.79.68.710.68.5-5.18.19.38.3-12.54.27.57.66.48.87.79.57.48.59.18.07.99.69.58.07.46.26.88.67.28.29.27.57.57.96.26.34.71.9-3.7-0.8

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value151212136.010.012139.08.015157.21417111113167.0109.69.79.99.7108.08.38.07.87.36.97.215159.910215.45.26.44.87.25.05.74.9
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensation us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

bwa:DelphiTechnologies, us-gaap:SubsequentEvent


Share
Period End2020-10-01
Value15
Percentage of ShareBasedCompensation0.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-914000000.0-185000000.0-617000000.0-102000000.0-27000000.0-120000000.0-109000000.0-103000000.0-173000000.0-104000000.0-121500000.0-126400000.0-105700000.0-160900000.0-181600000.0-315500000.0-122500000.0-132700000.0-61800000.0-113500000.0-125700000.0-103200000.0-1331100000.0-132900000.0-143300000.0-151800000.0-164000000.0-139400000.0-130600000.0-231100000.0-109700000.0-96000000.0-105500000.0-73600000.0-122900000.0-38000000.0-91900000.0-92400000.0-95700000.0-112800000.0-88200000.0-267800000.0-87400000.0-78900000.0-214900000.0-48300000.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-24.3-4.6-15.7-4.0-1.9-5.3-4.3-4.1-6.8-4.1-4.7-5.1-3.9-5.8-7.0-13.1-5.1-5.5-2.7-5.1-5.4-4.5-62.7-7.1-7.1-7.7-8.2-6.9-5.9-11.1-5.8-5.3-5.6-4.0-7.1-2.2-5.0-4.8-5.4-6.3-4.8-15.5-5.7-5.6-15.1-3.8

Payments To Acquire Productive Assets

us-gaap:PaymentsToAcquireProductiveAssets

us-gaap:PaymentsToAcquireProductiveAssets


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value147195179915411713510212711715212510816017013512313014512013010415813314514016514013112611910310787124949395119114897088805255
Percentage of PaymentsToAcquireProductiveAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value460-51.0-274.0-288.01061-62.0-172.0-30.0-65.0-153.0-60.0-107.7-212.2-3.5-256.3108-198.5-15.8-423.7-99.2-86.1-124.8497-82.6-94.7416-52.2-20.4-185.156-76.2-57.0-61.959-137.5-61.4-87.097-151.2-85.0-62.178-119.7188-103.821
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.2-1.3-7.0-11.474.4-2.7-6.7-1.2-2.5-6.0-2.3-4.3-7.9-0.1-9.94.5-8.3-0.7-18.8-4.5-3.7-5.523.4-4.4-4.721.0-2.6-1.0-8.42.7-4.0-3.2-3.33.2-8.0-3.6-4.75.1-8.5-4.7-3.44.5-7.813.4-7.31.7

Proceeds From Issuance Of Long Term Debt

us-gaap:ProceedsFromIssuanceOfLongTermDebt

us-gaap:ProceedsFromIssuanceOfLongTermDebt


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value120722152011301318151911380.97.3123.00.00.00.00.04.60.00.0541113.110122210.0-2.2100171064.71610.0131081916.74.0147206103610.00.0
Percentage of ProceedsFromIssuanceOfLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0

Repayments Of Long Term Debt

us-gaap:RepaymentsOfLongTermDebt

us-gaap:RepaymentsOfLongTermDebt


Repayments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value64526232732114150151326500.74.310.04.82.06.16.41777.30.68.77.46.9123.18.92.53201000.10.1611542107-3.799112561353.90.81048.72.5
Percentage of RepaymentsOfLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfLongTermDebt us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

bwa:DelphiTechnologies, us-gaap:SubsequentEvent


Repayments
Period End2020-10-01
Value900
Percentage of RepaymentsOfLongTermDebt0.0

Payments Of Dividends Common Stock

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:PaymentsOfDividendsCommonStock


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value41404135353535353535353535353529292929272828282929292930282828280.00.0
Percentage of PaymentsOfDividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0

Effective Income Tax Rate Continuing Operations

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:EffectiveIncomeTaxRateContinuingOperations


Effective
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value9.031.0-9.550.0540.060.260.078-0.025-0.030.347-0.030.013-0.0920.2860.2640.003-0.0230.302-0.1670.0050.0040.3170.003-0.0060.0280.2780.005-0.0010.0060.289-0.009000.260.0040.020.030.260.019-0.001-0.0030.24-0.0020.0360.0140.204
Percentage of EffectiveIncomeTaxRateContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod bwa:PerformanceBasis, us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod

bwa:AdjustedEarningsPerShareUnitsMetric, us-gaap:PerformanceShares


Share
Period End2020-09-302020-03-31
Value0.0020.115
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod100.0100.0

bwa:RelativeGrowthUnitMetric, us-gaap:PerformanceShares


Share
Period End2020-09-302020-03-31
Value0.0020.142
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod100.0123.5

bwa:TotalStockholderReturnUnitsMetric, us-gaap:PerformanceShares


Share
Period End2020-09-302020-03-31
Value0.0020.142
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod100.0123.5

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod us-gaap:AwardType

us-gaap:RestrictedStock


Share
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302011-02-28
Value0.0090.0310.7662050.0279940.0220.1250.9303380.0630390.00.0680.6254160.0272470.00.00.7767530.0252120.0309140.00.6678740.0172460.4199260.4088030.00.00150.3716970.0098620.00.328138
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod450.00.0666.30.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Deferred Tax Liabilities

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxLiabilities


Deferred
Period End2020-09-302019-12-31
Value174125
Percentage of DeferredTaxLiabilities100.0100.0

Deferred Tax Assets Net

us-gaap:DeferredTaxAssetsNet

us-gaap:DeferredTaxAssetsNet


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value812348523468823534491522506
Percentage of DeferredTaxAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

us-gaap:UnrecognizedTaxBenefits


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value231146120929112760222526273461
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnrecognizedTaxBenefits us-gaap:BalanceSheetLocation

us-gaap:OtherCurrentLiabilities


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value665.09.70.815
Percentage of UnrecognizedTaxBenefits28.63.48.10.917.0

Deferred Tax Assets Valuation Allowance

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:DeferredTaxAssetsValuationAllowance


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value5297186957171463435
Percentage of DeferredTaxAssetsValuationAllowance100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwa:AdjustedEbit

bwa:AdjustedEbit


Adjusted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value47951352635629271400341351346373345395401389350353351338305327317311282300301293290330312278261280258231228265271249231236218193167170
Percentage of AdjustedEbit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwa:AdjustedEbit us-gaap:StatementBusinessSegments

bwa:AfterMarket


Adjusted
Period End2021-06-302021-03-31
Value3221
Percentage of AdjustedEbit6.74.1

bwa:AirManagement


Adjusted
Period End2021-06-302021-03-312020-06-302020-03-31
Value27732228208
Percentage of AdjustedEbit57.862.896.676.8

bwa:Drivetrain


Adjusted
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value1371641311.063136100102105130107116121123111109104918692838170727165688980706559564944546146433832
Percentage of AdjustedEbit26.731.236.83.423.234.029.329.130.335.031.129.430.231.831.931.029.826.928.528.326.426.124.924.023.622.423.426.925.825.325.221.321.721.319.320.622.618.818.816.514.7

bwa:EPropulsionDrivetrain


Adjusted
Period End2021-06-302020-06-30
Value1321.0
Percentage of AdjustedEbit27.63.4

bwa:Engine


Adjusted
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value30122528208264241249241242238278280265238244247247218234233230211228230228222241231207195220202182184210209202188197186
Percentage of AdjustedEbit57.263.296.676.866.070.770.969.765.068.970.669.868.268.169.070.273.171.571.773.673.975.176.076.477.676.673.174.274.774.878.778.378.780.779.477.481.281.283.585.3

bwa:FuelInjection


Adjusted
Period End2021-06-302021-03-31
Value3833
Percentage of AdjustedEbit7.96.4

bwa:AmortizationOfInventoryFairValue us-gaap:BusinessAcquisition

bwa:AmortizationOfInventoryFairValue

bwa:DelphiTechnologiesPLC


Amortization
Period End2020-12-31
Value27
Percentage of AmortizationOfInventoryFairValue100.0

bwa:BusinessCombinationNetStockCompensationConsiderationTransferred us-gaap:BusinessAcquisition

bwa:BusinessCombinationNetStockCompensationConsiderationTransferred

bwa:DelphiTechnologiesPLC


Business
Period End2020-10-01
Value1477
Percentage of BusinessCombinationNetStockCompensationConsiderationTransferred100.0

bwa:BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentAccountsPayable us-gaap:BusinessAcquisition

bwa:BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentAccountsPayable

bwa:DelphiTechnologiesPLC


Business
Period End2020-10-01
Value1000000.0
Percentage of BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentAccountsPayable100.0

bwa:BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentAssets us-gaap:BusinessAcquisition

bwa:BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentAssets

bwa:DelphiTechnologiesPLC


Business
Period End2020-10-01
Value1000000.0
Percentage of BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentAssets100.0

bwa:BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentNetAssetsAndNonControllingInterests us-gaap:BusinessAcquisition

bwa:BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentNetAssetsAndNonControllingInterests

bwa:DelphiTechnologiesPLC


Business
Period End2020-10-01
Value2000000.0
Percentage of BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentNetAssetsAndNonControllingInterests100.0

bwa:BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentNetLiabilitiesAssumed us-gaap:BusinessAcquisition

bwa:BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentNetLiabilitiesAssumed

bwa:DelphiTechnologiesPLC


Business
Period End2020-10-01
Value-1000000.0
Percentage of BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentNetLiabilitiesAssumed100.0

bwa:BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOther us-gaap:BusinessAcquisition

bwa:BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOther

bwa:DelphiTechnologiesPLC


Business
Period End2020-10-01
Value14
Percentage of BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOther100.0

bwa:BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherCurrentLiabilities us-gaap:BusinessAcquisition

bwa:BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherCurrentLiabilities

bwa:DelphiTechnologiesPLC


Business
Period End2020-10-01
Value-1000000.0
Percentage of BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherCurrentLiabilities100.0

bwa:BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherNonCurrentAssets us-gaap:BusinessAcquisition

bwa:BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherNonCurrentAssets

bwa:DelphiTechnologiesPLC


Business
Period End2020-10-01
Value6000000.0
Percentage of BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherNonCurrentAssets100.0

bwa:BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentPrepaymentsAndOtherCurrentAssets us-gaap:BusinessAcquisition

bwa:BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentPrepaymentsAndOtherCurrentAssets

bwa:DelphiTechnologiesPLC


Business
Period End2020-10-01
Value-1000000.0
Percentage of BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentPrepaymentsAndOtherCurrentAssets100.0

bwa:BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentReceivablesNet us-gaap:BusinessAcquisition

bwa:BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentReceivablesNet

bwa:DelphiTechnologiesPLC


Business
Period End2020-10-01
Value1000000.0
Percentage of BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentReceivablesNet100.0

bwa:BusinessCombinationStockCompensationConsiderationTransferred

bwa:BusinessCombinationStockCompensationConsiderationTransferred


Business
Period End2020-10-01
Value7000000.0
Percentage of BusinessCombinationStockCompensationConsiderationTransferred100.0

bwa:BusinessCombinationStockCompensationConsiderationTransferred us-gaap:BusinessAcquisition

bwa:DelphiTechnologiesPLC


Business
Period End2020-10-01
Value7000000.0
Percentage of BusinessCombinationStockCompensationConsiderationTransferred100.0

bwa:CapitalExpendituresForDamageToPropertyPlantAndEquipment

bwa:CapitalExpendituresForDamageToPropertyPlantAndEquipment


Capital
Period End2021-06-302021-03-312020-12-31
Value0.02.02.0
Percentage of CapitalExpendituresForDamageToPropertyPlantAndEquipment0.0100.0100.0

bwa:DefinedPensionContribution

bwa:DefinedPensionContribution


Defined
Period End2021-06-302021-03-312020-06-302020-03-31
Value-5000000.0-7000000.0-5000000.0-5000000.0
Percentage of DefinedPensionContribution100.0100.0100.0100.0

bwa:EquityInAffiliatesEarningsNetOfDividendsReceivedAndOther

bwa:EquityInAffiliatesEarningsNetOfDividendsReceivedAndOther


Equity
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value7.0-4.0-4.013-10.06.06.65.3-15.9-11.0-8.3-13.3-0.9-9.55.32.0-8.6-15.7-13.19.9-8.9-9.88.210-11.8-9.06.9-2.2-10.4-15.62.9-8.0-0.5-7.414-1.5-8.0-12.3127.5-7.7-11.0
Percentage of EquityInAffiliatesEarningsNetOfDividendsReceivedAndOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwa:GainLossOnInsuranceProceedsReceivedForPropertyDamage

bwa:GainLossOnInsuranceProceedsReceivedForPropertyDamage


Gain
Period End2020-09-30
Value0
Percentage of GainLossOnInsuranceProceedsReceivedForPropertyDamage0.0

bwa:GainLossOnInsuranceProceedsReceivedForPropertyDamageNet

bwa:GainLossOnInsuranceProceedsReceivedForPropertyDamageNet


Gain
Period End2021-03-312020-12-312020-09-302020-06-302019-06-30
Value-2000000.003000000.06000000.00
Percentage of GainLossOnInsuranceProceedsReceivedForPropertyDamageNet100.00.0100.0100.00.0

bwa:GrossResearchAndDevelopmentExpenditures

bwa:GrossResearchAndDevelopmentExpenditures


Gross
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value224200197115103118126123128121125121134129126115119112106106104100104959492100961019499848482807576768069766964605652
Percentage of GrossResearchAndDevelopmentExpenditures100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwa:InsuranceDeductibleExpense

bwa:InsuranceDeductibleExpense


Insurance
Period End2020-12-31
Value0
Percentage of InsuranceDeductibleExpense0.0

bwa:MergerAcquisitionAndDivestitureExpense

bwa:MergerAcquisitionAndDivestitureExpense


Merger
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-30
Value15131621214.05.0
Percentage of MergerAcquisitionAndDivestitureExpense100.0100.0100.0100.0100.0100.0100.0

bwa:OtherNoncashAdjustments

bwa:OtherNoncashAdjustments


Other
Period End2021-06-302021-03-312020-06-302020-03-31
Value4000000.0-16000000.0-4000000.0-4000000.0
Percentage of OtherNoncashAdjustments100.0100.0100.0100.0

bwa:PaymentsForInvestmentsInEquitySecurities

bwa:PaymentsForInvestmentsInEquitySecurities


Payments
Period End2020-09-302019-09-302019-05-31
Value1.04.050
Percentage of PaymentsForInvestmentsInEquitySecurities100.0100.0100.0

bwa:PaymentsToAcquireBusinessesNetOfCashAcquiredRepaymentOfDebt us-gaap:BusinessAcquisition

bwa:PaymentsToAcquireBusinessesNetOfCashAcquiredRepaymentOfDebt

bwa:DelphiTechnologiesPLC


Payments
Period End2020-10-01
Value896
Percentage of PaymentsToAcquireBusinessesNetOfCashAcquiredRepaymentOfDebt100.0

bwa:ProceedsFromAssetDisposalAndOtherNet

bwa:ProceedsFromAssetDisposalAndOtherNet


Proceeds
Period End2021-06-302021-03-312020-06-302020-03-31
Value-8000000.01000000.02000000.0-4000000.0
Percentage of ProceedsFromAssetDisposalAndOtherNet100.0100.0100.0100.0

bwa:ProceedsFromInsuranceSettlement

bwa:ProceedsFromInsuranceSettlement


Proceeds
Period End2020-12-31
Value35
Percentage of ProceedsFromInsuranceSettlement100.0

bwa:ResearchAndDevelopmentCustomerReimbursements

bwa:ResearchAndDevelopmentCustomerReimbursements


Research
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value58171815159.0322115172213221321131415221719152720141721101112121211101311108.52011118.11314109.9
Percentage of ResearchAndDevelopmentCustomerReimbursements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwa:RestructuringCostsNetOfCashPaid

bwa:RestructuringCostsNetOfCashPaid


Restructuring
Period End2021-06-302021-03-312020-06-302020-03-31
Value4118432.0
Percentage of RestructuringCostsNetOfCashPaid100.0100.0100.0100.0

bwa:SegmentReportingCorporateAllocation

bwa:SegmentReportingCorporateAllocation


Segment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value7869783938376047394236433752483740444327293131232632362223302625253233242136-188.0212830-195.33422
Percentage of SegmentReportingCorporateAllocation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwa:SharesIssuedFromDilutedEarnings

bwa:SharesIssuedFromDilutedEarnings


Shares
Period End2020-10-01
Value9000000.0
Percentage of SharesIssuedFromDilutedEarnings100.0

bwa:UnrealizedGainOnEquityInvestments

bwa:UnrealizedGainOnEquityInvestments


Unrealized
Period End2021-06-302021-03-312020-06-302020-03-31
Value-4.0-272.00.0-9.0
Percentage of UnrealizedGainOnEquityInvestments100.0100.00.0100.0

us-gaap:AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities

us-gaap:AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities


Adjustments
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value34862261360338350319369346365364353301349321294285285285244269262273246286307296275250259206210205258230269216246176174168162139
Percentage of AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions us-gaap:StatementEquityComponents

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2020-09-302020-06-302019-09-302019-06-30
Value8.06.09.04.0
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions100.0100.0100.0100.0

us-gaap:TreasuryStock


Adjustments
Period End2020-09-302019-09-302019-06-30
Value0.0-1.04.0
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions0.0-11.1100.0

us-gaap:AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities

us-gaap:AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities


Adjustments
Period End2021-06-302021-03-312020-06-302020-03-31
Value52351162261
Percentage of AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0

us-gaap:AssetImpairmentCharges

us-gaap:AssetImpairmentCharges


Asset
Period End2020-09-302020-06-302020-03-312019-06-302019-03-312017-12-312017-09-302016-09-302015-09-302009-06-302008-07-31
Value0.0179.00.00.0710.01060.03672
Percentage of AssetImpairmentCharges0.0100.0100.00.00.0100.00.0100.00.0100.0100.0

us-gaap:BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued

us-gaap:BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued


Business
Period End2020-10-01
Value37
Percentage of BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued100.0

us-gaap:BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

bwa:DelphiTechnologies, us-gaap:SubsequentEvent


Business
Period End2020-10-01
Value37
Percentage of BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued100.0

us-gaap:BusinessCombinationConsiderationTransferred1 us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationConsiderationTransferred1

bwa:DelphiTechnologiesPLC


Business
Period End2020-10-01
Value2400
Percentage of BusinessCombinationConsiderationTransferred1100.0

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

bwa:DelphiTechnologies, us-gaap:SubsequentEvent


Business
Period End2020-10-01
Value2400
Percentage of BusinessCombinationConsiderationTransferred1100.0

us-gaap:BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable

bwa:AKASOL


Business
Period End2021-02-15
Value727
Percentage of BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable100.0

us-gaap:BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

bwa:AKASOL, us-gaap:SubsequentEvent


Business
Period End2021-02-15
Value727
Percentage of BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable100.0

us-gaap:BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual

bwa:Delphi


Business
Period End2020-12-31
Value30
Percentage of BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual100.0

us-gaap:BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual

bwa:Delphi


Business
Period End2020-12-31
Value1120
Percentage of BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual100.0

us-gaap:BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentInventory us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentInventory

bwa:DelphiTechnologiesPLC


Business
Period End2020-10-01
Value-1000000.0
Percentage of BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentInventory100.0

us-gaap:BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentPropertyPlantAndEquipment us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentPropertyPlantAndEquipment

bwa:DelphiTechnologiesPLC


Business
Period End2020-10-01
Value-5000000.0
Percentage of BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentPropertyPlantAndEquipment100.0

us-gaap:CapitalExpendituresIncurredButNotYetPaid

us-gaap:CapitalExpendituresIncurredButNotYetPaid


Capital
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value-12.0107143-21.05.05542-1.0-23.084410.69.65251-1.3-6.762341.3-7.85719-0.9193811-3.21.64827
Percentage of CapitalExpendituresIncurredButNotYetPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths

us-gaap:CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths


Cash
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value02000000.0-3000000.01000000.0-1000000.001300000.01200000.02100000.0-4800000.0-2300000.0-2300000.0-2900000.04400000.05200000.0-400000.0900000.0-200000.0-4200000.0-800000.0-4300000.07200000.0200000.01400000.02500000.0-2400000.0900000.04200000.0-4600000.0-4200000.0-9000000.0500000.04200000.0500000.0
Percentage of CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths0.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths us-gaap:DerivativeInstrumentRisk

us-gaap:ForeignExchangeContract


Cash
Period End2020-09-302020-06-302020-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value02000000.0-3000000.01300000.01300000.02100000.0-4700000.0-2200000.0-2300000.0-2800000.04200000.05100000.0-900000.0800000.0600000.0-2500000.0-600000.0-4200000.07200000.0200000.01400000.02500000.0-2400000.0900000.04200000.0-4600000.0-4200000.0-9000000.0500000.04100000.0600000.0
Percentage of CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths0.0100.0100.0100.0108.3100.097.995.7100.096.695.598.1225.088.9-300.059.575.097.7100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.097.6120.0

us-gaap:DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed

bwa:DTNotes, us-gaap:SeniorNotes


Debt
Period End2020-10-05
Value97.0
Percentage of DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed100.0

us-gaap:DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

bwa:DTNotes, us-gaap:SeniorNotes, us-gaap:SubsequentEvent


Debt
Period End2020-10-05
Value97.0
Percentage of DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed100.0

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value0-1000000.0-1000000.0-1000000.00-1000000.00-2000000.0-1000000.0-1000000.0-1000000.0-1000000.0
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses0.0100.0100.0100.00.0100.00.0100.0100.0100.0100.0100.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-4000000.0-3000000.0-3000000.0-3000000.0-2000000.0-3000000.0-2000000.0-2000000.0-3000000.0-2000000.0-1900000.0-1000000.0
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses0.0300.0300.0300.00.0300.00.0100.0300.0200.0190.0100.0

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-1000000.00-1000000.0000-1000000.000-300000.0-300000.0-300000.0-300000.0-300000.0-400000.0-300000.0-300000.0-500000.0-500000.0-600000.0
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses0.0-0.0100.00.0-0.00.050.0-0.0-0.030.030.00.00.00.00.00.00.00.00.00.0

us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-1000000.0000-1000000.0000-1000000.0
Percentage of DefinedBenefitPlanAmortizationOfPriorServiceCostCredit100.00.00.00.0100.00.00.00.0100.0

us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-1000000.0-2000000.0-1000000.00-1000000.0-1000000.0-1000000.0-1000000.0-1000000.0-1000000.0-1100000.0-1000000.0-1000000.0-1000000.0-1100000.0-1000000.0-1000000.0-1300000.0-1200000.0-1200000.0
Percentage of DefinedBenefitPlanAmortizationOfPriorServiceCostCredit0.00.0100.00.00.00.0100.00.00.00.0110.00.00.00.00.00.00.00.00.00.0

us-gaap:DefinedBenefitPlanContributionsByEmployer

us-gaap:DefinedBenefitPlanContributionsByEmployer


Defined
Period End2021-06-302021-03-31
Value5.07.0
Percentage of DefinedBenefitPlanContributionsByEmployer100.0100.0

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value2.03.03.02.02.03.02.03.03.03.04.03.0
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value2121186.06.06.05.06.06.05.06.07.0
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets1050.0700.0600.0300.0300.0200.0250.0200.0200.0166.7150.0233.3

us-gaap:DefinedBenefitPlanInterestCost us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanInterestCost

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value0.01.01.01.02.01.01.02.03.02.03.02.0
Percentage of DefinedBenefitPlanInterestCost0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value7.08.09.02.03.02.03.03.03.03.03.03.0
Percentage of DefinedBenefitPlanInterestCost0.0800.0900.0200.0150.0200.0300.0150.0100.0150.0100.0150.0

us-gaap:DefinedBenefitPlanInterestCost us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value1.00.00.01.01.00.01.01.00.80.70.70.70.80.80.80.81.11.00.9
Percentage of DefinedBenefitPlanInterestCost100.00.00.0100.0100.00.033.350.026.735.00.00.00.00.00.00.00.00.00.0

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-2.0-1.00.0-1.00.0-1.00.00.0270.00.0-1.0
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost100.0100.00.0100.00.0100.00.00.0100.00.00.0100.0

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-3.0-4.05.04.04.04.05.04.04.05.03.22.0
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost150.0400.00.0-400.00.0-400.00.00.014.80.00.0-200.0

us-gaap:DefinedBenefitPlanServiceCost us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanServiceCost

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value7.06.06.05.05.05.04.05.04.05.03.95.0
Percentage of DefinedBenefitPlanServiceCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DepreciationAndAmortization

us-gaap:DepreciationAndAmortization


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value19519522911511211211511010710710510710910910499979799947476727674777470646968706363636562646053565757
Percentage of DepreciationAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:DerivativeGainLossOnDerivativeNet

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


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value4.01.01.0-1.00.03.00.00.0-1.0-2.01.01.03.0
Percentage of DerivativeGainLossOnDerivativeNet100.0100.0100.0100.00.0100.00.00.0100.0100.0100.0100.0100.0

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

us-gaap:DerivativeNonmonetaryNotionalAmountMass

bwa:MaturityOfDerivativesPeriodOne, us-gaap:CommodityContract


Derivative
Period End2020-09-302019-06-302019-03-31
Value-48.0-68.0188.0
Percentage of DerivativeNonmonetaryNotionalAmountMass100.0100.0100.0

us-gaap:DividendsCommonStockCash us-gaap:StatementEquityComponents

us-gaap:DividendsCommonStockCash

us-gaap:NoncontrollingInterest


Dividends
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value4.0332.0152.03.05.0-1.010.0201.8-1.01718
Percentage of DividendsCommonStockCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RetainedEarnings


Dividends
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value4140413535353535353535353536
Percentage of DividendsCommonStockCash1025.0121.22050.0233.31750.01166.7700.0-3500.0350.0175.01972.2-3500.0205.9200.0

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Effect
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-30
Value-13.0-1.0274.0-12.0-18.0
Percentage of EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnDispositionOfAssets1

us-gaap:GainLossOnDispositionOfAssets1


Gain
Period End2021-06-30
Value-7000000.0
Percentage of GainLossOnDispositionOfAssets1100.0

us-gaap:GoodwillForeignCurrencyTranslationGainLoss

us-gaap:GoodwillForeignCurrencyTranslationGainLoss


Goodwill
Period End2021-06-302021-03-31
Value0.0-32.0
Percentage of GoodwillForeignCurrencyTranslationGainLoss0.0100.0

us-gaap:GoodwillForeignCurrencyTranslationGainLoss us-gaap:StatementBusinessSegments

bwa:AfterMarket


Goodwill
Period End2021-06-302021-03-31
Value8.0-7.0
Percentage of GoodwillForeignCurrencyTranslationGainLoss0.021.9

bwa:AirManagement


Goodwill
Period End2021-06-302021-03-31
Value2.0-13.0
Percentage of GoodwillForeignCurrencyTranslationGainLoss0.040.6

bwa:Drivetrain


Goodwill
Period End2021-03-31
Value-12.0
Percentage of GoodwillForeignCurrencyTranslationGainLoss37.5

us-gaap:GoodwillPurchaseAccountingAdjustments

us-gaap:GoodwillPurchaseAccountingAdjustments


Goodwill
Period End2021-06-302021-03-31
Value221.0
Percentage of GoodwillPurchaseAccountingAdjustments100.0100.0

us-gaap:GoodwillPurchaseAccountingAdjustments us-gaap:BusinessAcquisition

bwa:DelphiTechnologiesPLC


Goodwill
Period End2020-10-01
Value1.0
Percentage of GoodwillPurchaseAccountingAdjustments0.0

us-gaap:GoodwillPurchaseAccountingAdjustments us-gaap:StatementBusinessSegments

bwa:AfterMarket


Goodwill
Period End2021-06-302021-03-31
Value15-4.0
Percentage of GoodwillPurchaseAccountingAdjustments68.2-400.0

bwa:AirManagement


Goodwill
Period End2021-03-31
Value-4.0
Percentage of GoodwillPurchaseAccountingAdjustments-400.0

bwa:Drivetrain


Goodwill
Period End2021-03-31
Value9.0
Percentage of GoodwillPurchaseAccountingAdjustments900.0

us-gaap:ImpairmentOfLongLivedAssetsToBeDisposedOf us-gaap:StatementBusinessSegments

us-gaap:ImpairmentOfLongLivedAssetsToBeDisposedOf

bwa:Drivetrain


Impairment
Period End2020-12-312020-09-302020-06-30
Value0.00.08.0
Percentage of ImpairmentOfLongLivedAssetsToBeDisposedOf0.00.0100.0

bwa:Engine


Impairment
Period End2020-12-312020-09-302020-06-30
Value0.00.09.0
Percentage of ImpairmentOfLongLivedAssetsToBeDisposedOf0.00.0112.5

us-gaap:IncomeLossFromEquityMethodInvestments

us-gaap:IncomeLossFromEquityMethodInvestments


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value16128.03.02.05.07.07.09.09.010151310-12.714149.71112109.1118.7118.51114128.81210119.710.011129.210118.18.49.81010.09.3
Percentage of IncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncomeTaxExpenseBenefitContinuingOperationsAdjustmentOfDeferredTaxAssetLiability

us-gaap:IncomeTaxExpenseBenefitContinuingOperationsAdjustmentOfDeferredTaxAssetLiability


Income
Period End2021-06-30
Value20
Percentage of IncomeTaxExpenseBenefitContinuingOperationsAdjustmentOfDeferredTaxAssetLiability100.0

us-gaap:IncomeTaxReconciliationNondeductibleExpenseRestructuringCharges

us-gaap:IncomeTaxReconciliationNondeductibleExpenseRestructuringCharges


Income
Period End2020-09-302019-09-30
Value144.0
Percentage of IncomeTaxReconciliationNondeductibleExpenseRestructuringCharges100.0100.0

us-gaap:IncomeTaxReconciliationOtherAdjustments

us-gaap:IncomeTaxReconciliationOtherAdjustments


Income
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-51.02.0-12.0-21.035-17.0-5.0-10.2-1.8-9.1-0.436-5.1-10.03.417-2.4-2.31.0
Percentage of IncomeTaxReconciliationOtherAdjustments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-131.017233437-188.0-96.0-105.03072-120.0125-95.22.9-109.11835015-16.314840-10.7-43.676-82.1-3.73254-45.65069-52.4-17.14754-25.0-28.029-4.0-31.859168.84.9-13.075102
Percentage of IncreaseDecreaseInAccountsPayableAndAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccruedIncomeTaxesPayable

us-gaap:IncreaseDecreaseInAccruedIncomeTaxesPayable


Increase
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value121821-31.08.09.018-12.0-0.7-55.83.1-24.72.1-3.7-16.518-31.424-25.820-6.227-7.81.96.4-6.1-30.9-4.11.60.2-27.719179.8-1.5-24.5115.8-8.5-5.37.02510
Percentage of IncreaseDecreaseInAccruedIncomeTaxesPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets


Increase
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-27.0-4.00.08.0-6.02.0-1.023-24.58.62113-9.6-4.34.78.7-4.9-4.81.4-0.5-0.9-6.97.49.8-43.213142.2-25.5131411-3.53.75.010-9.76.4-1.57.2-1.8-9.47.23.4
Percentage of IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInReceivables

us-gaap:IncreaseDecreaseInReceivables


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-132.0290-52.0387-210.0-152.0-95.0-14.0-5.095-67.9-47.8-28.5187-64.158-41.4215-38.753-32.7155-87.7-5.3-27.320223-40.119246-103.6-25.423197-125.3-80.7-5.4167-41.736-23.2179-31.739102128
Percentage of IncreaseDecreaseInReceivables100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements


Incremental
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1400000.0700000.0200000.01300000.00500000.0200000.01000000.01100000.0600000.017000.01267000.01287000.01291000.0201000.01210000.0906000.0640000.097000.0894000.0928000.0749000.0-2000.01154000.01262000.01292000.0-53000.01591000.01992000.01897000.01353000.01419000.01353000.01379000.0-13000.01992000.01937000.02120000.0-22000.02614000.02571000.02785000.0836000.02062000.02209000.01899000.0
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestCostsCapitalized

us-gaap:InterestCostsCapitalized


Interest
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2.01.01.04.03.04.04.05.05.75.55.45.75.55.04.94.33.73.33.43.74.14.73.93.83.03.53.53.53.43.52.52.54.34.54.54.56.03.03.03.02.82.82.82.8
Percentage of InterestCostsCapitalized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentIncomeInterest

us-gaap:InvestmentIncomeInterest


Investment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value3.03.04.03.03.02.03.04.02.03.02.01.51.41.51.61.31.41.51.61.61.51.62.22.01.61.71.21.41.41.51.51.31.01.01.01.01.31.41.31.31.21.01.00.60.60.60.80.50.70.5
Percentage of InvestmentIncomeInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LossContingencyDamagesSoughtValue

us-gaap:LossContingencyDamagesSoughtValue


Loss
Period End2020-09-30
Value1000000.0
Percentage of LossContingencyDamagesSoughtValue100.0

us-gaap:MinorityInterestDecreaseFromRedemptions us-gaap:StatementEquityComponents

us-gaap:MinorityInterestDecreaseFromRedemptions

us-gaap:NoncontrollingInterest


Minority
Period End2021-06-30
Value33
Percentage of MinorityInterestDecreaseFromRedemptions100.0

us-gaap:NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent

us-gaap:NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-12.0-11.0-2.0-2.0-1.0-2.01.0-1.0270.0-2.0-2.4-2.4-2.6-1.2-1.3-1.4-1.2
Percentage of NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NoncontrollingInterestIncreaseFromBusinessCombination us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterestIncreaseFromBusinessCombination

us-gaap:NoncontrollingInterest


Noncontrolling
Period End2021-06-30
Value96
Percentage of NoncontrollingInterestIncreaseFromBusinessCombination100.0

us-gaap:OciBeforeReclassificationsBeforeTaxAttributableToParent

us-gaap:OciBeforeReclassificationsBeforeTaxAttributableToParent


Oci
Period End2020-12-312020-09-302020-06-302019-12-312019-09-302019-06-30
Value20338.038-104.0-15.0
Percentage of OciBeforeReclassificationsBeforeTaxAttributableToParent100.0100.0100.0100.0100.0100.0

us-gaap:OciBeforeReclassificationsBeforeTaxAttributableToParent us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Oci
Period End2020-12-312020-09-302020-06-302019-12-312019-09-302019-06-30
Value-144.07.00.0-36.03.01.0
Percentage of OciBeforeReclassificationsBeforeTaxAttributableToParent-720.021.20.0-94.7-2.9-6.7

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Oci
Period End2020-12-312020-09-302020-06-302019-12-312019-09-302019-06-30
Value0.01.00.00.00.0-1.0
Percentage of OciBeforeReclassificationsBeforeTaxAttributableToParent0.03.00.00.0-0.06.7

us-gaap:AccumulatedTranslationAdjustment


Oci
Period End2020-12-312020-09-302020-06-302019-12-312019-09-302019-06-30
Value164258.076-107.0-15.0
Percentage of OciBeforeReclassificationsBeforeTaxAttributableToParent820.075.8100.0200.0102.9100.0

us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value-2.0-8.0108-7.01.0-2.027-4.0-19.0-8.028-0.5-6.62.0-6.71.84.5-0.15.72.9-0.60.2-26.6-2.84.3-12.348-2.91.3-1.2-33.2-1.9-3.4-5.842-1.5-1.0-1.6-29.3-1.3-1.12.6
Percentage of OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value57-87.01874914-74.081-114.0-13.0-9.0-23.4-43.7-145.56549647349-150.927-54.568-57.9-37.084-249.8-141.9-196.1-1.1-2.73594-5.0-84.83647-90.744-46.0-147.5
Percentage of OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax


Other
Period End2021-06-302021-03-312020-06-302020-03-31
Value62-75.08.0-60.0
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentIncludingPortionAttributableToNoncontrollingInterest


Other
Period End2021-06-302021-03-312020-06-302020-03-31
Value-1.04.00.06.0
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax-1.6-5.30.0-10.0

us-gaap:AccumulatedForeignCurrencyAdjustmentIncludingPortionAttributableToNoncontrollingInterest


Other
Period End2021-06-302021-03-312020-06-302020-03-31
Value60-73.08.0-64.0
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax96.897.3100.0106.7

us-gaap:AccumulatedGainLossCashFlowHedgeIncludingNoncontrollingInterest


Other
Period End2021-06-302021-03-312020-06-302020-03-31
Value3.0-6.00.0-2.0
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax4.88.00.03.3

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsTax

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-09-302019-06-30
Value3.013-40.0-26.0-7.0128.02.0
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsTax100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Other
Period End2020-12-312020-09-302020-06-302019-12-312019-09-302019-06-30
Value-17.0-2.0-1.0-6.01.04.0
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsTax42.57.714.30.012.5200.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentIncludingPortionAttributableToNoncontrollingInterest


Other
Period End2021-06-302021-03-312020-06-302020-03-31
Value0.0-1.0-1.02.0
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsTax0.0-7.714.316.7

us-gaap:AccumulatedForeignCurrencyAdjustmentIncludingPortionAttributableToNoncontrollingInterest


Other
Period End2021-06-302021-03-312020-06-302020-03-31
Value3.014-6.010.0
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsTax100.0107.785.783.3

us-gaap:AccumulatedTranslationAdjustment


Other
Period End2020-12-312020-09-302020-06-302019-12-312019-09-302019-06-30
Value-23.0-24.0-6.0-5.07.0-2.0
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsTax57.592.385.70.087.5-100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax


Other
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value-6.00.01.01.0-3.00.00.0-1.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax100.00.0100.0100.0100.00.00.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax us-gaap:DerivativeInstrumentRisk

us-gaap:ForeignExchangeContract


Other
Period End2021-06-30
Value3.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax0.0

us-gaap:OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAfterAdjustmentsAndTaxParent us-gaap:DerivativeInstrumentRisk

us-gaap:OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAfterAdjustmentsAndTaxParent

us-gaap:CrossCurrencyInterestRateContract


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-30
Value5.05.06.03.04.03.02.0
Percentage of OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAfterAdjustmentsAndTaxParent100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:OtherComprehensiveIncomeLossNetInvestmentHedgeGainLossBeforeReclassificationAndTax

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


Other
Period End2021-06-302021-03-312020-06-302020-03-31
Value1225-10.08.0
Percentage of OtherComprehensiveIncomeLossNetInvestmentHedgeGainLossBeforeReclassificationAndTax100.0100.0100.0100.0

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


Other
Period End2020-12-312020-09-302020-06-302019-12-312019-09-302019-06-30
Value-25.0-24.0-10.0-15.023-7.0
Percentage of OtherComprehensiveIncomeLossNetInvestmentHedgeGainLossBeforeReclassificationAndTax0.00.0100.00.00.00.0

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


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value3.044-84.0-89.0-17.035-12.011-4.0
Percentage of OtherComprehensiveIncomeLossNetInvestmentHedgeGainLossBeforeReclassificationAndTax25.0176.00.00.0170.0437.50.00.00.0

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


Other
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value1.0-3.00.00.01.0-1.02.00.0
Percentage of OtherComprehensiveIncomeLossNetInvestmentHedgeGainLossBeforeReclassificationAndTax8.30.00.0-0.012.50.00.00.0

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value0.0-5.0176.00.0-3.05.0-5.0-3.0
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest0.0100.0100.0100.00.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value63-85.0795714-74.052-109.05.0-1.0-50.9-41.6-137.35955606747-151.122-53.069-33.5-37.277-233.3-183.7-181.3-1.8-2.877961.4-67.9-0.762-87.856
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent us-gaap:StatementEquityComponents

us-gaap:AociIncludingPortionAttributableToNoncontrollingInterest


Other
Period End2021-06-302021-03-312020-06-302020-03-31
Value63-85.014-74.0
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent100.0100.0100.0100.0

us-gaap:NoncontrollingInterest


Other
Period End2021-03-312020-03-31
Value-5.0-3.0
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent5.94.1

us-gaap:OtherOperatingIncome

us-gaap:OtherOperatingIncome


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302018-03-312017-06-302012-06-30
Value3000000.03000000.0-1000000.04000000.01000000.0002000000.0-2700000.0200000.01800000.04800000.0300000.01300000.0
Percentage of OtherOperatingIncome100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherOperatingIncomeExpenseNet

us-gaap:OtherOperatingIncomeExpenseNet


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-81.0-38.0-199.0-29.0-68.0-45.0138-18.0-16.0-29.0-51.4-7.1-30.4-4.9117-22.00.3-5.8-741.9-111.1-25.0-11.7-68.0-13.1-19.1-1.2-31.7-12.3-11.0-38.8-51.83.72.4-16.9-17.3-29.7-36.6-1.1-21.8-0.6281.6-0.4-0.1-20.3-1.6
Percentage of OtherOperatingIncomeExpenseNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForRestructuring

us-gaap:PaymentsForRestructuring


Payments
Period End2021-06-302021-03-312020-06-302020-03-31
Value55661614
Percentage of PaymentsForRestructuring100.0100.0100.0100.0

us-gaap:PaymentsForRestructuring us-gaap:RestructuringCostAndReserve

bwa:Other


Payments
Period End2021-06-302021-03-312020-06-302020-03-31
Value27121.01.0
Percentage of PaymentsForRestructuring49.118.26.27.1

us-gaap:EmployeeSeverance


Payments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-31
Value28541215138.02.0209.36.11.70.20.63.74.07.5199.627112.56.62.8
Percentage of PaymentsForRestructuring50.981.80.093.892.90.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:EmployeeSeverance, bwa:Drivetrain


Payments
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-31
Value1.01.00.01.00.00.03.51.30.60.20.21.62.75.3176.125101.12.71.2
Percentage of PaymentsForRestructuring0.06.20.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:EmployeeSeverance, bwa:Engine


Payments
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-31
Value1114137.02.0205.84.81.10.00.42.11.32.22.33.51.70.91.43.91.6
Percentage of PaymentsForRestructuring0.087.592.90.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:PaymentsOfDebtIssuanceCosts

us-gaap:PaymentsOfDebtIssuanceCosts


Payments
Period End2021-06-302021-03-312020-12-312020-09-302018-12-312018-09-302017-12-312017-09-302016-12-312016-09-30
Value9.01.0-1.01.00.00.00.00.00.00.0
Percentage of PaymentsOfDebtIssuanceCosts100.0100.0100.0100.00.00.00.00.00.00.0

us-gaap:PaymentsOfDividendsMinorityInterest

us-gaap:PaymentsOfDividendsMinorityInterest


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value165.02.0145.0-1.02.0228.02.67.1175.71.9-0.1214.22.23.0204.90.32.2150.71.64.8142.61.70.09.01.46.12.4123.80.99.20.02.70.42.85.0
Percentage of PaymentsOfDividendsMinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation


Payments
Period End2021-06-302021-03-312020-06-302020-03-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value1.0131.012-0.10.1130.10.11.222110.21.8270.30.20.1170.00.01.9120.00.0
Percentage of PaymentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.00.00.0

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value4470.00.02.00.00.00.010.00.00.00.00.05.11.50.00.00.00.011870.00.0124.10.00.01060.00.00.00.00.00.00.00.00.00.00.02030.00.01640.0
Percentage of PaymentsToAcquireBusinessesNetOfCashAcquired100.00.00.0100.00.00.00.0100.00.00.00.00.0100.0100.00.00.00.00.0100.00.00.0100.0100.00.00.0100.00.00.00.00.00.00.00.00.00.00.00.0100.00.00.0100.00.0

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired us-gaap:BusinessAcquisition

bwa:DelphiTechnologiesPLC


Payments
Period End2020-10-01
Value18
Percentage of PaymentsToAcquireBusinessesNetOfCashAcquired0.0

us-gaap:ProceedsFromHedgeInvestingActivities

us-gaap:ProceedsFromHedgeInvestingActivities


Proceeds
Period End2021-06-302021-03-312020-09-302020-06-302020-03-31
Value0.0116.05.01.0
Percentage of ProceedsFromHedgeInvestingActivities0.0100.0100.0100.0100.0

us-gaap:ProceedsFromInsuranceSettlementInvestingActivities

us-gaap:ProceedsFromInsuranceSettlementInvestingActivities


Proceeds
Period End2020-12-312020-09-30
Value-3.01.0
Percentage of ProceedsFromInsuranceSettlementInvestingActivities100.0100.0

us-gaap:ProceedsFromMinorityShareholders

us-gaap:ProceedsFromMinorityShareholders


Proceeds
Period End2020-09-302019-12-312018-12-312011-12-312011-09-302010-12-312010-09-30
Value4.00.00.00.00.00.00.0
Percentage of ProceedsFromMinorityShareholders100.00.00.00.00.00.00.0

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value00-1000000.0-12000000.000-1000000.0-14000000.0-100000.00-700000.0-14400000.00-200000.0-600000.0-1300000.05800000.04200000.04300000.0-7600000.01700000.01600000.02000000.0-1600000.0
Percentage of ProceedsFromPaymentsForOtherFinancingActivities0.00.0100.0100.00.00.0100.0100.0100.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromRepaymentsOfNotesPayable

us-gaap:ProceedsFromRepaymentsOfNotesPayable


Proceeds
Period End2021-06-302021-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value-13.07.00.00.00.00.0-4.4-30.6-116.6117-213.2156-106.474-180.7-13.645192148.0-26.7-512.312365193111-58.7-63.188-11.0-21.9442.3-11.738-7.6
Percentage of ProceedsFromRepaymentsOfNotesPayable100.0100.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductWarrantyAccrualPayments

us-gaap:ProductWarrantyAccrualPayments


Product
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value4429451310.0181413121828151910.014131615335.911191510208.29.6159.67.38.410117.210158.67.9107.81015-61.1106.68.9
Percentage of ProductWarrantyAccrualPayments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductWarrantyAccrualPreexistingIncreaseDecrease

us-gaap:ProductWarrantyAccrualPreexistingIncreaseDecrease


Product
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value4.0139.00.05.02.00.07.00.08.01.0
Percentage of ProductWarrantyAccrualPreexistingIncreaseDecrease100.0100.0100.00.0100.0100.00.0100.00.0100.0100.0

us-gaap:ProductWarrantyAccrualWarrantiesIssued

us-gaap:ProductWarrantyAccrualWarrantiesIssued


Product
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2428479.01215279.0121521122113217.4162714121024141.36.46.32011105.0148.19.411106.07.110.08.9148.5159.19.7109.9
Percentage of ProductWarrantyAccrualWarrantiesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax


Reclassification
Period End2021-06-302021-03-312020-06-302020-03-31
Value-5000000.0-4000000.01000000.03000000.0
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax100.0100.0100.0100.0

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentIncludingPortionAttributableToNoncontrollingInterest


Reclassification
Period End2021-06-302021-03-312020-06-302020-03-31
Value-4000000.0-4000000.02000000.03000000.0
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax80.0100.0200.0100.0

us-gaap:ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent

us-gaap:ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent


Reclassification
Period End2020-12-312020-09-302020-06-302019-12-312019-09-302019-06-30
Value-24000000.03000000.01000000.0-3000000.0-4000000.0-28000000.0
Percentage of ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent100.0100.0100.0100.0100.0100.0

us-gaap:ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Reclassification
Period End2020-12-312020-09-302020-06-302019-12-312019-09-302019-06-30
Value-24000000.03000000.02000000.0-3000000.0-3000000.0-28000000.0
Percentage of ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent100.0100.0200.0100.075.0100.0

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Reclassification
Period End2020-12-312020-09-302020-06-302019-12-312019-09-302019-06-30
Value00-1000000.00-1000000.00
Percentage of ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent-0.00.0-100.0-0.025.0-0.0

us-gaap:RepaymentsOfDebt us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:RepaymentsOfDebt

bwa:SeniorNotesDueNovember2022, us-gaap:SeniorNotes


Repayments
Period End2021-06-18
Value500
Percentage of RepaymentsOfDebt100.0

us-gaap:RepaymentsOfShortTermDebt

us-gaap:RepaymentsOfShortTermDebt


Repayments
Period End2021-06-30
Value46
Percentage of RepaymentsOfShortTermDebt100.0

us-gaap:RestrictedStockExpense us-gaap:AwardType

us-gaap:RestrictedStockExpense

us-gaap:RestrictedStock


Restricted
Period End2020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value9.07.07.08.08.07.07.07.26.85.46.56.86.76.76.86.86.86.76.46.96.96.97.35.45.45.44.55.04.94.8116.35.05.24.74.13.44.7
Percentage of RestrictedStockExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestructuringAndRelatedCostNumberOfPositionsEliminated us-gaap:StatementBusinessSegments

us-gaap:RestructuringAndRelatedCostNumberOfPositionsEliminated

bwa:Engine


Restructuring
Period End2020-12-31
Value0
Percentage of RestructuringAndRelatedCostNumberOfPositionsEliminated0.0

us-gaap:RestructuringCharges

us-gaap:RestructuringCharges


Restructuring
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302011-12-312011-09-30
Value623013120371531141314225.7317.545130.00.00.01.3196.4249.3191217131539350.00.00.00.0270.00.0
Percentage of RestructuringCharges100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0100.00.00.0

us-gaap:RestructuringCharges us-gaap:BusinessAcquisition

bwa:DelphiTechnologies


Restructuring
Period End2021-06-302021-03-312020-12-31
Value265.054
Percentage of RestructuringCharges41.916.741.2

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

bwa:DelphiTechnologies, bwa:SeveranceAndProfessionalFees, bwa:AirManagement


Restructuring
Period End2021-06-302021-03-31
Value0.02.0
Percentage of RestructuringCharges0.06.7

bwa:DelphiTechnologies, bwa:SeveranceAndProfessionalFees, bwa:FuelInjection


Restructuring
Period End2021-06-302021-03-31
Value243.0
Percentage of RestructuringCharges38.710.0

us-gaap:RestructuringCharges us-gaap:RestructuringCostAndReserve

bwa:Other


Restructuring
Period End2021-06-302021-03-312020-06-302020-03-31
Value269.09.03.0
Percentage of RestructuringCharges41.930.024.320.0

us-gaap:EmployeeSeverance


Restructuring
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-31
Value362110.028128.08.07.01.4271.81.40.37.03.33.29.47.87.510.032
Percentage of RestructuringCharges58.170.050.075.780.057.161.550.024.686.924.010.523.136.551.634.447.264.557.366.783.0

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

bwa:SeveranceAndProfessionalFees, bwa:AirManagement


Restructuring
Period End2021-06-302021-03-312020-06-302020-03-31
Value12157.05.0
Percentage of RestructuringCharges19.450.018.933.3

bwa:SeveranceAndProfessionalFees, bwa:Drivetrain


Restructuring
Period End2020-12-312020-09-302020-06-30
Value6.03.03.0
Percentage of RestructuringCharges4.615.08.1

bwa:SeveranceAndProfessionalFees, bwa:EPropulsionDrivetrain


Restructuring
Period End2021-06-302021-03-312020-06-302020-03-31
Value5.06.03.02.0
Percentage of RestructuringCharges8.120.08.113.3

bwa:VoluntaryEmployeeSeverance, bwa:Engine


Restructuring
Period End2020-09-302019-09-30
Value1510.0
Percentage of RestructuringCharges75.071.4

us-gaap:EmployeeSeverance, bwa:Drivetrain


Restructuring
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-31
Value1.0171.00.00.00.0-0.51.71.10.70.32.42.30.46.87.45.36.432
Percentage of RestructuringCharges5.045.96.70.00.00.0-8.85.414.75.323.112.535.94.334.261.240.542.781.3

us-gaap:EmployeeSeverance, bwa:Engine


Restructuring
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-31
Value9.011118.08.07.01.9250.70.70.04.61.02.82.60.42.23.60.7
Percentage of RestructuringCharges45.029.773.357.161.550.033.381.49.35.30.024.015.630.113.13.316.824.01.8

us-gaap:RestructuringCharges us-gaap:RestructuringPlan

bwa:A2020RestructuringPlan


Restructuring
Period End2021-06-302021-03-312020-06-302020-03-31
Value37243715
Percentage of RestructuringCharges59.780.0100.0100.0

bwa:DelphiTechnologiesRestructuring


Restructuring
Period End2021-06-30
Value26
Percentage of RestructuringCharges41.9

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

srt:Europe, us-gaap:FacilityClosing, bwa:EPropulsionDrivetrain


Restructuring
Period End2021-06-302021-03-31
Value194.0
Percentage of RestructuringCharges30.613.3

us-gaap:RestructuringCosts

us-gaap:RestructuringCosts


Restructuring
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value6230864.0372.0162.05.07.0-1.73.9236.9233.50.00.00.02.29.70.1160.8118.11.65.34.634480.00.00.0-2.20.0
Percentage of RestructuringCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.00.0

us-gaap:RestructuringCosts us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Restructuring
Period End2021-06-30
Value3.0
Percentage of RestructuringCosts4.8

us-gaap:RestructuringCosts us-gaap:ConsolidationItems, us-gaap:RestructuringCostAndReserve

us-gaap:CorporateNonSegment, bwa:Other


Restructuring
Period End2021-06-30
Value3.0
Percentage of RestructuringCosts4.8

us-gaap:RestructuringCosts us-gaap:ConsolidationItems, us-gaap:RestructuringCostAndReserve, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, bwa:Other, bwa:AirManagement


Restructuring
Period End2021-06-302020-06-30
Value3.05.0
Percentage of RestructuringCosts4.813.5

us-gaap:OperatingSegments, bwa:Other, bwa:EPropulsionDrivetrain


Restructuring
Period End2021-06-302020-06-30
Value204.0
Percentage of RestructuringCosts32.310.8

us-gaap:OperatingSegments, us-gaap:EmployeeSeverance, bwa:AirManagement


Restructuring
Period End2021-06-302020-06-30
Value9.011
Percentage of RestructuringCosts14.529.7

us-gaap:OperatingSegments, us-gaap:EmployeeSeverance, bwa:EPropulsionDrivetrain


Restructuring
Period End2021-06-302020-06-30
Value3.017
Percentage of RestructuringCosts4.845.9

us-gaap:OperatingSegments, us-gaap:EmployeeSeverance, bwa:FuelInjection


Restructuring
Period End2021-06-30
Value24
Percentage of RestructuringCosts38.7

us-gaap:RestructuringCosts us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, bwa:AirManagement


Restructuring
Period End2021-06-302020-06-30
Value1216
Percentage of RestructuringCosts19.443.2

us-gaap:OperatingSegments, bwa:EPropulsionDrivetrain


Restructuring
Period End2021-06-302020-06-30
Value2321
Percentage of RestructuringCosts37.156.8

us-gaap:OperatingSegments, bwa:FuelInjection


Restructuring
Period End2021-06-30
Value24
Percentage of RestructuringCosts38.7

us-gaap:RestructuringCosts us-gaap:RestructuringCostAndReserve

bwa:Other


Restructuring
Period End2021-06-302021-03-312020-06-302020-03-31
Value269.09.03.0
Percentage of RestructuringCosts41.930.024.3150.0

us-gaap:EmployeeSeverance


Restructuring
Period End2021-06-302021-03-312020-06-302020-03-31
Value36212812
Percentage of RestructuringCosts58.170.075.7600.0

us-gaap:RestructuringCosts us-gaap:RestructuringCostAndReserve, us-gaap:StatementBusinessSegments

bwa:Other, bwa:AirManagement


Restructuring
Period End2021-03-312020-03-31
Value3.02.0
Percentage of RestructuringCosts10.0100.0

bwa:Other, bwa:EPropulsionDrivetrain


Restructuring
Period End2021-03-312020-03-31
Value6.01.0
Percentage of RestructuringCosts20.050.0

us-gaap:EmployeeSeverance, bwa:AirManagement


Restructuring
Period End2021-03-312020-03-31
Value1411
Percentage of RestructuringCosts46.7550.0

us-gaap:EmployeeSeverance, bwa:EPropulsionDrivetrain


Restructuring
Period End2021-03-312020-03-31
Value4.01.0
Percentage of RestructuringCosts13.350.0

us-gaap:EmployeeSeverance, bwa:FuelInjection


Restructuring
Period End2021-03-31
Value3.0
Percentage of RestructuringCosts10.0

us-gaap:RestructuringCosts us-gaap:StatementBusinessSegments

bwa:AirManagement


Restructuring
Period End2021-03-312020-03-31
Value1713
Percentage of RestructuringCosts56.7650.0

bwa:EPropulsionDrivetrain


Restructuring
Period End2021-03-312020-03-31
Value10.02.0
Percentage of RestructuringCosts33.3100.0

bwa:FuelInjection


Restructuring
Period End2021-03-31
Value3.0
Percentage of RestructuringCosts10.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod bwa:PerformanceBasis, us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod

bwa:RelativeGrowthUnitMetric, us-gaap:PerformanceShares


Share
Period End2020-09-302020-06-30
Value0.0050.008
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod100.0100.0

bwa:TotalStockholderReturnUnitsMetric, us-gaap:PerformanceShares


Share
Period End2020-09-302020-06-30
Value0.0050.008
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod us-gaap:AwardType

us-gaap:RestrictedStock


Share
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-06-302018-03-31
Value0.0330.0240.0090.030.0370.0060.1420.007
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod660.0300.00.00.00.00.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue bwa:PerformanceBasis, us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue

bwa:RelativeGrowthUnitMetric, us-gaap:PerformanceShares


Share
Period End2020-09-302020-06-30
Value52.6442.35
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue100.0100.0

bwa:TotalStockholderReturnUnitsMetric, us-gaap:PerformanceShares


Share
Period End2020-09-302020-06-30
Value73.1150.17
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue138.9118.5

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:RestrictedStock


Share
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-06-302018-03-31
Value39.840.4942.2344.9945.1345.4145.6849.48
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue75.695.60.00.00.00.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue bwa:PerformanceBasis, us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

bwa:AdjustedEarningsPerShareUnitsMetric, us-gaap:PerformanceShares


Share
Period End2020-09-302020-03-31
Value373.411e-05
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue100.0100.0

bwa:RelativeGrowthUnitMetric, us-gaap:PerformanceShares


Share
Period End2020-09-302020-03-31
Value3.7770000000000006e-053.411e-05
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:RestrictedStock


Share
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-06-302018-03-31
Value3.7770000000000006e-052.9670000000000002e-053.4049999999999994e-053.668e-054.078e-054.192e-055.086e-055.264e-05
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.00.099.80.00.00.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod

us-gaap:RestrictedStock


Share
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-06-302018-03-31
Value9000.075000.0466000.07000.028000.0665000.068000.0486000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue

us-gaap:RestrictedStock


Share
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-06-302018-03-31
Value38.6841.1946.043.8150.4335.9451.1141.05
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage us-gaap:AwardType, us-gaap:Vesting

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage

us-gaap:PerformanceShares, us-gaap:ShareBasedCompensationAwardTrancheOne


Sharebased
Period End2020-09-30
Value32.67
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage100.0

us-gaap:PerformanceShares, us-gaap:ShareBasedCompensationAwardTrancheThree


Sharebased
Period End2020-09-30
Value32.67
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage100.0

us-gaap:PerformanceShares, us-gaap:ShareBasedCompensationAwardTrancheTwo


Sharebased
Period End2020-09-30
Value32.67
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage100.0

us-gaap:StandardAndExtendedProductWarrantyAccrualForeignCurrencyTranslationGainLoss

us-gaap:StandardAndExtendedProductWarrantyAccrualForeignCurrencyTranslationGainLoss


Standard
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value2000000.0-5000000.06000000.03000000.01000000.0-2000000.02000000.0-3000000.0-1000000.00-400000.0-1200000.0-4600000.02100000.0900000.01500000.02500000.01400000.0-4600000.0900000.0-1700000.02900000.0-2200000.0-200000.0
Percentage of StandardAndExtendedProductWarrantyAccrualForeignCurrencyTranslationGainLoss100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueEmployeeStockPurchasePlan us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueEmployeeStockPurchasePlan

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-30
Value3.0-2.05.00.0-16.04.01.0
Percentage of StockIssuedDuringPeriodValueEmployeeStockPurchasePlan100.0100.0100.00.0100.0100.0100.0

us-gaap:TreasuryStock


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-30
Value0.03.00.00.0121.0
Percentage of StockIssuedDuringPeriodValueEmployeeStockPurchasePlan0.0-150.00.00.0-75.025.0

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302021-03-312020-06-302020-03-312019-03-312018-03-31
Value10.0-23.06.0-20.0-25.0-15.0
Percentage of StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures100.0100.0100.0100.0100.0100.0

us-gaap:TreasuryStock


Stock
Period End2021-06-302021-03-312020-06-302020-03-31
Value0.0210.022
Percentage of StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures0.0-91.30.0-110.0

us-gaap:TaxAdjustmentsSettlementsAndUnusualProvisions

us-gaap:TaxAdjustmentsSettlementsAndUnusualProvisions


Tax
Period End2021-06-302021-03-31
Value-4000000.0-20000000.0
Percentage of TaxAdjustmentsSettlementsAndUnusualProvisions100.0100.0

us-gaap:UnrealizedGainLossOnInvestments

us-gaap:UnrealizedGainLossOnInvestments


Unrealized
Period End2021-06-302021-03-312020-06-302020-03-31
Value-4.0-272.00.0-9.0
Percentage of UnrealizedGainLossOnInvestments100.0100.00.0100.0

us-gaap:UnrealizedGainLossOnInvestments us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

bwa:BorgWarnerRomeoPowerLLC


Unrealized
Period End2021-06-302021-03-31
Value-4.0-272.0
Percentage of UnrealizedGainLossOnInvestments100.0100.0

bwa:RomeoPowerInc


Unrealized
Period End2020-12-31
Value391
Percentage of UnrealizedGainLossOnInvestments0.0

us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense

us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense


Unrecognized
Period End2021-06-30
Value55
Percentage of UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense100.0

bwa:AccruedFreight

bwa:AccruedFreight


Accrued
Period End2021-06-302021-03-312020-12-312019-12-31
Value52514116
Percentage of AccruedFreight100.0100.0100.0100.0

bwa:Accumulatedothercomprehensiveincomelosscumulativechangesinnetgainlossfromhedgesbeforetax

bwa:Accumulatedothercomprehensiveincomelosscumulativechangesinnetgainlossfromhedgesbeforetax


Accumulatedothercomprehensiveincomelosscumulativechangesinnetgainlossfromhedgesbeforetax
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value-102.0-135.0-204.0-93.020464.032-5.07.0-14.1-26.2-36.1-84.1-56.5-46.1-20.735
Percentage of Accumulatedothercomprehensiveincomelosscumulativechangesinnetgainlossfromhedgesbeforetax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwa:Accumulatedothercomprehensiveincomelosscumulativechangesinnetgainlossfromhedgesbeforetax us-gaap:DerivativeInstrumentRisk

us-gaap:ForeignExchangeContract


Accumulatedothercomprehensiveincomelosscumulativechangesinnetgainlossfromhedgesbeforetaxus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-06-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value-1.0-1.0-3.00.0-1.00.1-2.0-4.4-6.5-2.3-0.91.45.6
Percentage of Accumulatedothercomprehensiveincomelosscumulativechangesinnetgainlossfromhedgesbeforetax1.1-5.0-6.50.020.0-0.77.612.27.74.12.0-6.816.0

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

bwa:ForeignCurrencyDenominatedDebtDesignatedAsANetInvestmentHedge, us-gaap:NetInvestmentHedging


Accumulatedothercomprehensiveincomelosscumulativechangesinnetgainlossfromhedgesbeforetaxus-gaap:
Period End2021-06-302021-03-312020-12-31
Value19-43.0-68.0
Percentage of Accumulatedothercomprehensiveincomelosscumulativechangesinnetgainlossfromhedgesbeforetax-18.631.933.3

bwa:Foreigncurrencydenominateddebtdesignatedasanetinvestmenthedge, us-gaap:NetInvestmentHedging


Accumulatedothercomprehensiveincomelosscumulativechangesinnetgainlossfromhedgesbeforetaxus-gaap:
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value-68.0-43.0-19.0-9.0-17.0-2.0-25.0-18.0-30.4-37.1-41.1-73.0-57.1
Percentage of Accumulatedothercomprehensiveincomelosscumulativechangesinnetgainlossfromhedgesbeforetax33.346.2-95.0-19.6-425.0-6.2500.0-257.1215.6141.6113.986.8101.1

us-gaap:CrossCurrencyInterestRateContract, us-gaap:NetInvestmentHedging


Accumulatedothercomprehensiveincomelosscumulativechangesinnetgainlossfromhedgesbeforetaxus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value-114.0-95.0-139.0-55.03451162817211110.06.6-7.40.0
Percentage of Accumulatedothercomprehensiveincomelosscumulativechangesinnetgainlossfromhedgesbeforetax111.870.468.159.1170.0110.9400.087.5-340.0300.0-84.4-38.2-18.38.8-0.0

us-gaap:ForeignExchangeContract, us-gaap:NetInvestmentHedging


Accumulatedothercomprehensiveincomelosscumulativechangesinnetgainlossfromhedgesbeforetaxus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value-7.03.03.06.06.06.05.06.04.04.04.53.12.92.92.9
Percentage of Accumulatedothercomprehensiveincomelosscumulativechangesinnetgainlossfromhedgesbeforetax6.9-2.2-1.5-6.530.013.0125.018.8-80.057.1-31.9-11.8-8.0-3.4-5.1

bwa:Asbestosrelatedandenvironmentalliabilitiestransferredtothirdparty bwa:Derecognitionofsubsidiary

bwa:Asbestosrelatedandenvironmentalliabilitiestransferredtothirdparty

bwa:BorgWarnerMorseTECLLC


Asbestosrelatedandenvironmentalliabilitiestransferredtothirdpartybwa:
Period End2020-12-31
Value772
Percentage of Asbestosrelatedandenvironmentalliabilitiestransferredtothirdparty100.0

bwa:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaymentsAndOtherCurrentAssets us-gaap:BusinessAcquisition

bwa:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaymentsAndOtherCurrentAssets

bwa:AKASOL


Business
Period End2021-06-04
Value5.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaymentsAndOtherCurrentAssets100.0

bwa:DelphiTechnologiesPLC


Business
Period End2021-06-302021-03-312020-10-01
Value767777
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaymentsAndOtherCurrentAssets0.00.00.0

bwa:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesNotesPayableAndOtherShortTermDebt us-gaap:BusinessAcquisition

bwa:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesNotesPayableAndOtherShortTermDebt

bwa:AKASOL


Business
Period End2021-06-04
Value8000000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesNotesPayableAndOtherShortTermDebt100.0

bwa:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRestrictedCash us-gaap:BusinessAcquisition

bwa:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRestrictedCash

bwa:AKASOL


Business
Period End2021-06-04
Value16
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRestrictedCash100.0

bwa:CustomerIncentivePayments

bwa:CustomerIncentivePayments


Customer
Period End2021-06-302021-03-312020-12-312019-12-31
Value148153166180
Percentage of CustomerIncentivePayments100.0100.0100.0100.0

bwa:CustomerIncentivePayments us-gaap:BalanceSheetLocation

us-gaap:OtherNoncurrentAssets


Customer
Period End2021-06-302021-03-312020-12-312019-12-31
Value148153166180
Percentage of CustomerIncentivePayments100.0100.0100.0100.0

bwa:CustomerIncentivePaymentsCurrent

bwa:CustomerIncentivePaymentsCurrent


Customer
Period End2021-06-302021-03-312020-12-312019-12-31
Value43434337
Percentage of CustomerIncentivePaymentsCurrent100.0100.0100.0100.0

bwa:CustomerIncentivePaymentsCurrent us-gaap:BalanceSheetLocation

us-gaap:PrepaidExpensesAndOtherCurrentAssets


Customer
Period End2021-06-302021-03-312020-12-312019-12-31
Value43434337
Percentage of CustomerIncentivePaymentsCurrent100.0100.0100.0100.0

bwa:CustomerRelatedLiability

bwa:CustomerRelatedLiability


Customer
Period End2021-06-302021-03-312020-12-312019-12-31
Value24423819871
Percentage of CustomerRelatedLiability100.0100.0100.0100.0

bwa:DebtDifferenceBetweenFairValueAndCarryingValue

bwa:DebtDifferenceBetweenFairValueAndCarryingValue


Debt
Period End2021-06-302021-03-312020-12-31
Value286202332
Percentage of DebtDifferenceBetweenFairValueAndCarryingValue100.0100.0100.0

bwa:DebtInstrumentRedemptionPriceRedeemablePrincipalAmount us-gaap:DebtInstrument, us-gaap:LongtermDebtType

bwa:DebtInstrumentRedemptionPriceRedeemablePrincipalAmount

bwa:DTNotes, us-gaap:SeniorNotes


Debt
Period End2020-10-05
Value776
Percentage of DebtInstrumentRedemptionPriceRedeemablePrincipalAmount100.0

bwa:DebtInstrumentRedemptionPriceRedeemablePrincipalAmount us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

bwa:DTNotes, us-gaap:SeniorNotes, us-gaap:SubsequentEvent


Debt
Period End2020-10-05
Value776
Percentage of DebtInstrumentRedemptionPriceRedeemablePrincipalAmount100.0

bwa:Debtdifferencebetweenfairvalueandcarryingvalue

bwa:Debtdifferencebetweenfairvalueandcarryingvalue


Debtdifferencebetweenfairvalueandcarryingvalue
Period End2020-12-312020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value332351061048217-7.6116
Percentage of Debtdifferencebetweenfairvalueandcarryingvalue100.0100.0100.0100.0100.0100.0100.0100.0

bwa:DeferredTaxAssetsInterestLimitationCarryforwards

bwa:DeferredTaxAssetsInterestLimitationCarryforwards


Deferred
Period End2020-12-31
Value111
Percentage of DeferredTaxAssetsInterestLimitationCarryforwards100.0

bwa:DeferredTaxAssetsTaxCreditCarryforwardState

bwa:DeferredTaxAssetsTaxCreditCarryforwardState


Deferred
Period End2020-12-312019-12-312018-12-31
Value282120
Percentage of DeferredTaxAssetsTaxCreditCarryforwardState100.0100.0100.0

bwa:DeferredTaxAssetsUnrecognizedTaxBenefits

bwa:DeferredTaxAssetsUnrecognizedTaxBenefits


Deferred
Period End2020-12-312019-12-312018-12-31
Value474941
Percentage of DeferredTaxAssetsUnrecognizedTaxBenefits100.0100.0100.0

bwa:DeferredTaxLiabilitiesFixedAssets

bwa:DeferredTaxLiabilitiesFixedAssets


Deferred
Period End2020-12-312019-12-31
Value176144
Percentage of DeferredTaxLiabilitiesFixedAssets100.0100.0

bwa:DeferredTaxLiabilitiesUnrealizedGainLossOnEquitySecurities

bwa:DeferredTaxLiabilitiesUnrealizedGainLossOnEquitySecurities


Deferred
Period End2020-12-31
Value91
Percentage of DeferredTaxLiabilitiesUnrealizedGainLossOnEquitySecurities100.0

bwa:DeferredTaxLiabilityNotReportedUndistributedEarningsOfForeignSubsidiaries

bwa:DeferredTaxLiabilityNotReportedUndistributedEarningsOfForeignSubsidiaries


Deferred
Period End2020-12-31
Value1100
Percentage of DeferredTaxLiabilityNotReportedUndistributedEarningsOfForeignSubsidiaries100.0

bwa:DefinedBenefitPlanEstimatedFutureEmployerContributionsInNextFiscalYearUnderContractualObligation

bwa:DefinedBenefitPlanEstimatedFutureEmployerContributionsInNextFiscalYearUnderContractualObligation


Defined
Period End2020-12-31
Value6000000.0
Percentage of DefinedBenefitPlanEstimatedFutureEmployerContributionsInNextFiscalYearUnderContractualObligation100.0

bwa:EmployeeTerminationBenefits

bwa:EmployeeTerminationBenefits


Employee
Period End2021-06-302021-03-312020-12-31
Value374859
Percentage of EmployeeTerminationBenefits100.0100.0100.0

bwa:EquityMethodInvestmentIncreaseDecreaseInOwnershipPercentage us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

bwa:EquityMethodInvestmentIncreaseDecreaseInOwnershipPercentage

bwa:RomeoPowerInc


Equity
Period End2020-12-29
Value14.0
Percentage of EquityMethodInvestmentIncreaseDecreaseInOwnershipPercentage100.0

bwa:Investmentsandotherlongtermreceivablestransferredtothirdparty bwa:Derecognitionofsubsidiary

bwa:Investmentsandotherlongtermreceivablestransferredtothirdparty

bwa:BorgWarnerMorseTECLLC


Investmentsandotherlongtermreceivablestransferredtothirdpartybwa:
Period End2020-12-31
Value-371000000.0
Percentage of Investmentsandotherlongtermreceivablestransferredtothirdparty100.0

bwa:MaximumLineOfCreditPotentialAdditionalIncrease

bwa:MaximumLineOfCreditPotentialAdditionalIncrease


Maximum
Period End2020-12-31
Value2000
Percentage of MaximumLineOfCreditPotentialAdditionalIncrease100.0

bwa:OtherLongTermReceivables

bwa:OtherLongTermReceivables


Other
Period End2021-06-302021-03-312020-12-312019-12-31
Value5149512.0
Percentage of OtherLongTermReceivables100.0100.0100.0100.0

bwa:OtherNonCurrentAssets

bwa:OtherNonCurrentAssets


Other
Period End2021-06-302021-03-312020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value74656021522120915017311053393432
Percentage of OtherNonCurrentAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwa:Othernoncurrentassetstransferredtothirdparty bwa:Derecognitionofsubsidiary

bwa:Othernoncurrentassetstransferredtothirdparty

bwa:BorgWarnerMorseTECLLC


Othernoncurrentassetstransferredtothirdpartybwa:
Period End2020-12-31
Value-223000000.0
Percentage of Othernoncurrentassetstransferredtothirdparty100.0

bwa:OwnershipPercentageInInvestee bwa:ScheduleOfEquityMethodInvestmentsAndEquityMethodInvesteeName

bwa:OwnershipPercentageInInvestee

bwa:DelphiTVSDieselSystemsLtd


Ownership
Period End2020-12-31
Value52.5
Percentage of OwnershipPercentageInInvestee100.0

bwa:NSKWarnerKK


Ownership
Period End2020-12-31
Value50.0
Percentage of OwnershipPercentageInInvestee95.2

bwa:TurboEnergyPrivateLimited


Ownership
Period End2020-12-31
Value32.6
Percentage of OwnershipPercentageInInvestee62.1

bwa:OwnershipPercentageinInvestee us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

bwa:OwnershipPercentageinInvestee

bwa:RomeoSystemsInc.


Ownership
Period End2020-09-302019-05-31
Value20.00.2
Percentage of OwnershipPercentageinInvestee100.0100.0

bwa:PerformanceSharesExcludedFromDilutedEarningsPerShare

bwa:PerformanceSharesExcludedFromDilutedEarningsPerShare


Performance
Period End2021-03-312020-09-302020-06-302020-03-31
Value925380.0113530.0112100.0114720.0
Percentage of PerformanceSharesExcludedFromDilutedEarningsPerShare100.0100.0100.0100.0

bwa:PrepaidEngineering

bwa:PrepaidEngineering


Prepaid
Period End2021-06-302021-03-312020-12-312019-12-31
Value32333311
Percentage of PrepaidEngineering100.0100.0100.0100.0

bwa:Principalpaymentslessunamortizeddiscounts

bwa:Principalpaymentslessunamortizeddiscounts


Principalpaymentslessunamortizeddiscounts
Period End2020-12-31
Value3787
Percentage of Principalpaymentslessunamortizeddiscounts100.0

bwa:PropertyPlantAndEquipmentNetOfAccumulatedDepreciationBeforeTooling

bwa:PropertyPlantAndEquipmentNetOfAccumulatedDepreciationBeforeTooling


Property
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value4228259325512602267925852662266526772615261627082653257124902412235723672348234222912040202519231967194319611903182617671690165716781594157015911560153715801453
Percentage of PropertyPlantAndEquipmentNetOfAccumulatedDepreciationBeforeTooling100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwa:Receivablesnettransferredtothirdparty bwa:Derecognitionofsubsidiary

bwa:Receivablesnettransferredtothirdparty

bwa:BorgWarnerMorseTECLLC


Receivablesnettransferredtothirdpartybwa:
Period End2020-12-31
Value-9000000.0
Percentage of Receivablesnettransferredtothirdparty100.0

bwa:ToolingNetOfAmortization

bwa:ToolingNetOfAmortization


Tooling
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value363231230237246227229230227212209214209182173140144151154156157145135126126124127124112107106107109104102104104100100958980
Percentage of ToolingNetOfAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bwa:TotalLeaseAssets

bwa:TotalLeaseAssets


Total
Period End2020-12-312019-12-31
Value22386
Percentage of TotalLeaseAssets100.0100.0

bwa:TotalLeaseLiabilities

bwa:TotalLeaseLiabilities


Total
Period End2020-12-312019-12-31
Value23385
Percentage of TotalLeaseLiabilities100.0100.0

bwa:Totaldebtprincipalpayments

bwa:Totaldebtprincipalpayments


Totaldebtprincipalpayments
Period End2020-12-31
Value3698
Percentage of Totaldebtprincipalpayments100.0

us-gaap:AccountsPayableCurrentAndNoncurrent

us-gaap:AccountsPayableCurrentAndNoncurrent


Accounts
Period End2021-06-302021-03-312020-12-312019-12-312013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value23672485235213253030391918274825372828
Percentage of AccountsPayableCurrentAndNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccountsReceivableGross

us-gaap:AccountsReceivableGross


Accounts
Period End2020-12-312019-12-31
Value29301927
Percentage of AccountsReceivableGross100.0100.0

us-gaap:AccrualForEnvironmentalLossContingencies

us-gaap:AccrualForEnvironmentalLossContingencies


Accrual
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value7.07.07.03.03.03.08.08.09.09.09.97.08.38.36.96.06.16.34.95.25.15.44.95.55.66.26.87.57.74.04.73.63.73.94.74.66.71011121328
Percentage of AccrualForEnvironmentalLossContingencies100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccruedInsuranceCurrent

us-gaap:AccruedInsuranceCurrent


Accrued
Period End2021-06-302021-03-312020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value1920201711107.80.08.29.2101116
Percentage of AccruedInsuranceCurrent100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0

us-gaap:AdvancesToAffiliate

us-gaap:AdvancesToAffiliate


Advances
Period End2021-06-302021-03-312020-12-312019-12-31
Value292306297256
Percentage of AdvancesToAffiliate100.0100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivable

us-gaap:AllowanceForDoubtfulAccountsReceivable


Allowance
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value116.06.65.72.91.92.32.12.14.34.04.3
Percentage of AllowanceForDoubtfulAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessAcquisitionEquityInterestIssuedOrIssuableValueAssigned us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

us-gaap:BusinessAcquisitionEquityInterestIssuedOrIssuableValueAssigned

bwa:DelphiTechnologies, us-gaap:SubsequentEvent


Business
Period End2020-10-01
Value1500
Percentage of BusinessAcquisitionEquityInterestIssuedOrIssuableValueAssigned100.0

us-gaap:BusinessAcquisitionPercentageOfVotingInterestsAcquired us-gaap:BusinessAcquisition

us-gaap:BusinessAcquisitionPercentageOfVotingInterestsAcquired

bwa:AKASOL


Business
Period End2021-06-302021-06-04
Value93.089.0
Percentage of BusinessAcquisitionPercentageOfVotingInterestsAcquired100.0100.0

us-gaap:BusinessAcquisitionPreacquisitionContingencyAmountOfSettlement us-gaap:BusinessAcquisition

us-gaap:BusinessAcquisitionPreacquisitionContingencyAmountOfSettlement

bwa:AKASOL


Business
Period End2021-06-04
Value648
Percentage of BusinessAcquisitionPreacquisitionContingencyAmountOfSettlement100.0

us-gaap:BusinessAcquisitionSharePrice us-gaap:BusinessAcquisition

us-gaap:BusinessAcquisitionSharePrice

bwa:AKASOL


Business
Period End2021-02-15
Value120.0
Percentage of BusinessAcquisitionSharePrice100.0

us-gaap:BusinessCombinationAcquiredReceivablesEstimatedUncollectible

us-gaap:BusinessCombinationAcquiredReceivablesEstimatedUncollectible


Business
Period End2020-12-31
Value23
Percentage of BusinessCombinationAcquiredReceivablesEstimatedUncollectible100.0

us-gaap:BusinessCombinationAcquiredReceivablesGrossContractualAmount

us-gaap:BusinessCombinationAcquiredReceivablesGrossContractualAmount