WDC


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

Table of contents


us-gaap:StatementEquityComponents
us-gaap:SharesIssued

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesOutstanding
us-gaap:StatementEquityComponents

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareBasicAndDiluted

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

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

us-gaap:CostOfGoodsAndServicesSold

us-gaap:GrossProfit

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxesPaidNet

us-gaap:InterestExpense

us-gaap:InterestPaidNet

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:NonoperatingIncomeExpense

us-gaap:OperatingExpenses

us-gaap:OperatingIncomeLoss

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:ResearchAndDevelopmentExpenseExcludingAcquiredInProcessCost

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ProductOrService
us-gaap:StatementGeographical
wdc:FormFactor

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:Assets

us-gaap:Liabilities

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity
us-gaap:CumulativeEffectPeriodOfAdoption
us-gaap:CumulativeEffectPeriodOfAdoption, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:AssetsCurrent

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:AccountsReceivableNetCurrent

us-gaap:InventoryNet

us-gaap:OtherAssetsCurrent

us-gaap:NoncurrentAssets
us-gaap:StatementGeographical

us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:Goodwill

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill
us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:FiniteLivedIntangibleAssetsNet
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:DeferredTaxAssetsLiabilitiesNet

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OtherAssetsNoncurrent

us-gaap:AccountsPayableCurrent

us-gaap:AccruedLiabilitiesCurrent

us-gaap:LiabilitiesCurrent

us-gaap:LongTermDebtCurrent

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:LongTermDebt

us-gaap:LongTermDebtNoncurrent
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DeferredFinanceCostsNoncurrentNet

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:OperatingLeaseLiability

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:StockholdersEquity
us-gaap:CumulativeEffectPeriodOfAdoption
us-gaap:CumulativeEffectPeriodOfAdoption, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:TreasuryStockValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInInventories

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:ShareBasedCompensation

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquireInvestments

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:RepaymentsOfLongTermDebt
us-gaap:DebtInstrument

us-gaap:PaymentsOfDividends

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

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber

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

us-gaap:DeferredTaxLiabilities

us-gaap:UnrecognizedTaxBenefits

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:AllocatedShareBasedCompensationExpenseNetOfTax

us-gaap:AmortizationOfFinancingCostsAndDiscounts

us-gaap:BasicEarningsPerShareProForma

us-gaap:CommonStockDividendsPerShareDeclared
us-gaap:MajorCustomers, us-gaap:ConcentrationRiskByBenchmark, us-gaap:ConcentrationRiskByType
us-gaap:ConcentrationRiskPercentage1
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:ConcentrationRiskByBenchmark, us-gaap:ConcentrationRiskByType

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets

us-gaap:DepreciationAndAmortization

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate

us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense

us-gaap:GainLossOnDispositionOfAssets1
us-gaap:RestructuringPlan

us-gaap:GainLossOnSaleOfPropertyPlantEquipment

us-gaap:GainOnBusinessInterruptionInsuranceRecovery
us-gaap:IncomeTaxAuthorityName, us-gaap:TaxPeriod
us-gaap:IncomeTaxExaminationEstimateOfPossibleLoss
us-gaap:IncomeTaxAuthorityName, us-gaap:TaxPeriod
us-gaap:IncomeTaxExaminationPenaltiesExpense

us-gaap:IncreaseDecreaseInAccountsPayableRelatedParties

us-gaap:IncreaseDecreaseInAccountsPayableTrade

us-gaap:IncreaseDecreaseInAccruedLiabilities

us-gaap:IncreaseDecreaseInEmployeeRelatedLiabilities

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:InvestmentIncomeInterest

us-gaap:OciBeforeReclassificationsBeforeTaxAttributableToParent
us-gaap:StatementEquityComponents

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeasePayments

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossBeforeTax

us-gaap:OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossTax

us-gaap:OtherComprehensiveIncomeLossTaxPortionAttributableToParent1
us-gaap:StatementEquityComponents

us-gaap:OtherOperatingActivitiesCashFlowStatement

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

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired
us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:PaymentsToAcquireEquityMethodInvestments

us-gaap:ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans

us-gaap:ProceedsFromSaleAndCollectionOfReceivables

us-gaap:ProceedsFromSaleOfAvailableForSaleSecuritiesDebt

us-gaap:ProceedsFromSaleOfHeldToMaturitySecurities

us-gaap:ProceedsFromSaleOfMachineryAndEquipment

us-gaap:ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent
us-gaap:StatementEquityComponents
us-gaap:RestructuringCostAndReserve, us-gaap:RestructuringPlan
us-gaap:RestructuringAndRelatedCostIncurredCost
us-gaap:RestructuringPlan

us-gaap:RestructuringCharges
us-gaap:RestructuringPlan

us-gaap:RestructuringCostsAndAssetImpairmentCharges

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice

us-gaap:StandardProductWarrantyAccrualPayments

us-gaap:StandardProductWarrantyAccrualPreexistingIncreaseDecrease

us-gaap:StandardProductWarrantyAccrualWarrantiesIssued

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised

us-gaap:UnrecognizedTaxBenefitsIncreasesResultingFromSettlementsWithTaxingAuthorities
us-gaap:AwardType
wdc:AggregateValueOfRestrictedStockAwardsVested

wdc:DividendsDeclared

wdc:EffectiveIncomeTaxReconciliationDiscreteTaxEffectsNetOfAdjustments

wdc:EffectiveIncomeTaxReconciliationDiscreteTaxEffectsNetTaxDeficiencies

wdc:Employeeterminationassetimpairmentandothercharges

wdc:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAndAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsAndTax

wdc:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodAndAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsAndTax

wdc:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodAndAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsNetofTax
us-gaap:StatementEquityComponents

wdc:PaymentsForLongTermLoansForRelatedParties

wdc:ProceedsFromLongTermLoansForRelatedParties
us-gaap:AwardType
wdc:ShareBasedCompensationArrangementByShareBasedPaymentAwardsEquityInstrumentsOtherThanOptionsForfeitedInPeriodWeightedAverageGrantDateFairValue
us-gaap:StatementEquityComponents
wdc:StockIssuedDuringPeriodSharesEmployeeStockPurchasePlansNetOfTaxWithholdings

wdc:StockIssuedDuringPeriodValueEmployeeStockPurchasePlanNetOfTaxWithholdings
us-gaap:StatementEquityComponents

wdc:TaxesPaidOnVestedStockAwardsUnderEmployeeStockPlans

wdc:UnrecognizedTaxBenefitsDecreaseResultingFromRestructuringActivities

dei:EntityPublicFloat

us-gaap:AccountsPayableRelatedPartiesCurrent
us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:AccruedIncomeTaxesNoncurrent
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:AssetsFairValueDisclosure
us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:CashAndCashEquivalentsFairValueDisclosure
us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument

us-gaap:ContractWithCustomerLiability

us-gaap:DebtInstrumentCarryingAmount
us-gaap:DebtInstrument

us-gaap:DebtInstrumentFaceAmount
us-gaap:DebtInstrument
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrument, us-gaap:VariableRate
us-gaap:DebtInstrumentInterestRateEffectivePercentage
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentUnamortizedDiscount

us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet
us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet
us-gaap:DebtInstrument
us-gaap:DeferredFinanceCostsNet

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredTaxAssetsDeferredIncome

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsPropertyPlantAndEquipment

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DeferredTaxLiabilitiesUndistributedForeignEarnings
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation
us-gaap:RetirementPlanSponsorLocation
us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate
us-gaap:RetirementPlanSponsorLocation
us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease

us-gaap:DefinedBenefitPlanBenefitObligation
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets
us-gaap:DefinedBenefitPlanByPlanAssetCategories
us-gaap:DefinedBenefitPlanByPlanAssetCategories, us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanFundedStatusOfPlan
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanByPlanAssetCategories, us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanPlanAssetsTargetAllocationPercentage
us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:DerivativeAssets
us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:DerivativeLiabilities
us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument

us-gaap:DerivativeNotionalAmount

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
us-gaap:AwardType
dei:LegalEntity, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:EquityMethodInvestmentOwnershipPercentage
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:ExcessCapital

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:FiniteLivedIntangibleAssetsGross
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:ForeignCurrencyCashFlowHedgeGainLossToBeReclassifiedDuringNext12Months
us-gaap:BalanceSheetLocation, us-gaap:RelatedPartyTransaction
us-gaap:GuaranteeObligationsMaximumExposure
us-gaap:GuaranteeObligationsByNature, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:RelatedPartyTransaction, wdc:BalanceSheetInformation
us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:IntangibleAssetsGrossExcludingGoodwill

us-gaap:InventoryFinishedGoodsNetOfReserves
us-gaap:BalanceSheetLocation, us-gaap:RelatedPartyTransaction
us-gaap:InventoryGross
us-gaap:RelatedPartyTransaction, wdc:BalanceSheetInformation

us-gaap:InventoryRawMaterialsAndSuppliesNetOfReserves

us-gaap:InventoryWorkInProcessNetOfReserves
us-gaap:AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyType
us-gaap:Investments

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:LiabilitiesFairValueDisclosure
us-gaap:FairValueByMeasurementFrequency

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

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType
us-gaap:NotesReceivableNet
us-gaap:AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyType
us-gaap:NotesReceivableRelatedParties

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

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent

us-gaap:PurchaseObligation

us-gaap:PurchaseObligationDueAfterFifthYear

us-gaap:PurchaseObligationDueInFifthYear

us-gaap:PurchaseObligationDueInNextTwelveMonths

us-gaap:PurchaseObligationDueInSecondYear

us-gaap:PurchaseObligationDueInThirdYear

us-gaap:PurchaseObligationFutureMinimumPaymentsRemainderOfFiscalYear
us-gaap:RestructuringCostAndReserve, us-gaap:RestructuringPlan
us-gaap:RestructuringReserve
us-gaap:RestructuringPlan

us-gaap:RetainedEarningsUndistributedEarningsFromEquityMethodInvestees

us-gaap:RevenueRemainingPerformanceObligation
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1

us-gaap:StandardProductWarrantyAccrual

us-gaap:StandardProductWarrantyAccrualCurrent

us-gaap:StandardProductWarrantyAccrualNoncurrent

us-gaap:TaxCreditCarryforwardAmount
us-gaap:IncomeTaxAuthority
us-gaap:IncomeTaxAuthority
us-gaap:TaxCreditCarryforwardValuationAllowance

us-gaap:TreasuryStockShares

us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued
us-gaap:BalanceSheetLocation, us-gaap:RelatedPartyTransaction
us-gaap:VariableInterestEntityEntityMaximumLossExposureAmount
us-gaap:RelatedPartyTransaction
us-gaap:RelatedPartyTransaction, wdc:BalanceSheetInformation

wdc:CommonStockValues
us-gaap:MajorCustomers
wdc:EntityWideAccountsReceivableMajorCustomerPercentage
us-gaap:MajorCustomers, us-gaap:ConcentrationRiskByBenchmark, us-gaap:ConcentrationRiskByType
us-gaap:GuaranteeObligationsByNature, us-gaap:RelatedPartyTransactionsByRelatedParty
wdc:GuaranteeObligationsMaximumExposureRemainderOfFiscalYear
us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:GuaranteeObligationsByNature, us-gaap:RelatedPartyTransactionsByRelatedParty
wdc:GuaranteeObligationsMaximumExposureThereafter
us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:GuaranteeObligationsByNature, us-gaap:RelatedPartyTransactionsByRelatedParty
wdc:GuaranteeObligationsMaximumExposureYearFive
us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:GuaranteeObligationsByNature, us-gaap:RelatedPartyTransactionsByRelatedParty
wdc:GuaranteeObligationsMaximumExposureYearFour
us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:GuaranteeObligationsByNature, us-gaap:RelatedPartyTransactionsByRelatedParty
wdc:GuaranteeObligationsMaximumExposureYearOne
us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:GuaranteeObligationsByNature, us-gaap:RelatedPartyTransactionsByRelatedParty
wdc:GuaranteeObligationsMaximumExposureYearThree
us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:GuaranteeObligationsByNature, us-gaap:RelatedPartyTransactionsByRelatedParty
wdc:GuaranteeObligationsMaximumExposureYearTwo
us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:IncomeTaxAuthorityName, us-gaap:TaxPeriod
wdc:IncomeTaxExaminationAdditionalTax

wdc:InvestmentFundingCommitments
us-gaap:Range, wdc:EquityMethodInvestorName

wdc:LesseeOperatingLeaseLiabilityToBePaidAfterYearFour

wdc:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFourAndThereafter

wdc:NotesReceivableAndInvestmentsInRelatedParties
us-gaap:AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyType
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
wdc:OtherCommitmentRemainingCommittedPrepayments

wdc:OtherMiscellaneousLiabilitiesNoncurrent

wdc:OtherMiscellaniousLiabilitiesNoncurrent
dei:LegalEntity, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
wdc:PartnersOwnershipInVentureBusiness
us-gaap:DebtInstrument
wdc:RatioOfTotalAdjustedEBITDAToInterestExpenseMinimum

wdc:UnrecognizedTaxBenefitsPayable

Plots across concepts


IncomeStatement
Comprehensive Income Net Of Tax
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
PropertyPlantAndEquipmentNet
Property Plant And Equipment Net
Liabilities
Operating Lease Liability
Current Liabilities
Operating Lease Liability Current
Noncurrent Liabilities
Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
Stockholders Equity
Accumulated Other Comprehensive Income Loss Net Of Tax
CashFlow
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInOperatingActivities
Increase Decrease In Inventories
NetCashProvidedByUsedInInvestingActivities
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInFinancingActivities
Net Cash Provided By Used In Financing Activities
Shares
Treasury Stock Shares
OperatingLeaseLiability
Operating Lease Liability Current
NonoperatingIncomeExpense
Nonoperating Income Expense
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Remainder Of Fiscal Year
FiniteLivedIntangibleAssets
Finite Lived Intangible Assets Net
InventoryNet
Inventory Finished Goods Net Of Reserves

Tables

  2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-012010-07-022010-04-022010-01-012009-10-02
 us-gaap:SharesIssued us-gaap:StatementEquityComponents us-gaap:CommonStock312.0NANA312.0312.0312.0312.0312.0312.0312.0312.0312.0312.0312.0312.0312.0312.0NANANA312.0NANANA261.0NANANA261.0NANANA261.0NANANA261.0NANANA233.0NANANA231.0NANANA
 us-gaap:SharesIssued us-gaap:StatementEquityComponents us-gaap:TreasuryStock4.0NANA-8.010.0-12.013.014.017.019.021.023.016.013.015.017.0-18.0NANANA-28.0NANANA31.0NANANA-27.0NANANA-24.0NANANA-15.0NANANA0.0NANANA0.0NANANA
us-gaap:CommonStockSharesIssued NA312.0312.0312.0312.0312.0312.0312.0312.0312.0312.0312.0312.0312.0312.0312.0312.0312.0312.0NA312.0261.0261.0261.0261.0261.0261.0261.0261.0261.0261.0261.0261.0261.0261.0261.0246.0261.0235.0234.0233.0232.0232.0NA231.0NANANA
us-gaap:CommonStockSharesOutstanding NA306.0306.0304.0302.0300.0299.0298.0295.0293.0291.0289.0296.0299.0297.0295.0294.0291.0288.0NA284.0233.0232.0231.0230.0231.0232.0234.0234.0235.0237.0236.0237.0238.0241.0243.0246.0261.0235.0234.0233.0232.0232.0NA231.0NANANA
 us-gaap:CommonStockSharesOutstanding us-gaap:StatementEquityComponents us-gaap:TreasuryStockNA-6.0-6.0-8.0-10.0-12.0-13.0-14.0-17.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding NA313.0307.0NANA303.0298.0296.0NA292.0290.0298.0NA308.0296.0306.0NA299.0294.0285.0NA234.0234.0234.0NA236.0238.0240.0NA242.0243.0242.0NA245.0246.0252.0NA246.0237.0237.0NA236.0235.0234.0NA234.0232.0NA
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic NA306.0305.0NANA299.0298.0296.0NA292.0290.0292.0NA298.0296.0295.0NA289.0286.0285.0NA233.0232.0231.0NA231.0233.0234.0NA235.0236.0236.0NA239.0242.0246.0NA241.0234.0233.0NA232.0230.0230.0NA229.0227.0NA
us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted NA313.0307.0303.0NA303.0298.0296.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount NA1.08.016.0NA3.015.015.0NA17.019.03.0NA2.012.02.0NA2.05.05.0NA6.06.04.0NA1.01.00.0NA2.02.01.0NA4.07.03.0NA3.07.04.0NA4.04.04.0NA1.01.0NA
us-gaap:EarningsPerShareBasic █▃▁2.040.640.2NA0.490.06-0.47-0.93-0.67-1.99-1.681.752.530.2-2.782.310.960.860.82-1.28-1.40.321.081.230.951.661.881.811.351.61.822.1-1.121.641.382.112.932.00.621.030.680.630.980.861.151.751.891.28
us-gaap:EarningsPerShareDiluted █▃▁2.01000000000000020.630.2NA0.490.06-0.47-0.93-0.67-1.99-1.681.712.460.2-2.782.230.930.830.8-1.28-1.40.321.071.210.941.631.841.761.321.551.772.05-1.121.61.362.062.871.960.611.010.670.620.960.841.131.711.851.25
us-gaap:EarningsPerShareBasicAndDiluted NANANA-0.2NANANA-0.93NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-012010-07-022010-04-022010-01-012009-10-02
  2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-012010-07-022010-04-022010-01-012009-10-02
 TTM Greenblatt ROC _ _▇▅▄▃▄▄▃▂▁▁▄▇▇███▆▆▆▄▂▄▄▅▄▅▅▅▅▅▆▆▂▅▆▆▇▆▄▄▄▄▄▄▅675.0317.0158.070.0261.0153.050.0-129.0-381.0-394.0176.0686.0843.0914.0955.0905.0652.0525.0545.0232.0-195.088.0251.0322.0255.0421.0466.0469.0352.0419.0478.0542.0-221.0417.0478.0592.0808.0542.0162.0259.0172.0158.0240.0211.0293.0NANANA
  2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-012010-07-022010-04-022010-01-012009-10-02
us-gaap:AllocatedShareBasedCompensationExpense ▆▇▆▆▆▆▆▆▅▇▆▆▆███▇███▆▄▃▄▂▂▂▂▂▂▂▂▂▂▂▂▂▁▂▁▁▁▁79.083.080.076.076.078.077.077.064.084.079.079.078.0103.099.097.091.0102.0102.099.070.042.037.042.021.017.018.019.016.024.024.021.018.021.024.025.022.011.015.09.08.09.09.0NANANANANA
us-gaap:ComprehensiveIncomeNetOfTax NA37.0113.0-4.0NA-56.0-159.0-298.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest NANANANA174.0-56.0-159.0-298.0-210.0-601.0-446.0474.0671.0153.0-810.0680.0318.0349.0-77.0-354.0-295.0113.0287.0259.0203.0413.0420.0397.0333.0420.0400.0511.0-320.0402.0329.0548.0NA493.0155.0220.0NANANANANANANANA
us-gaap:CostOfGoodsAndServicesSold █▂▁▂▅▄▇▆▄▃▅█▆▃▇3354.03046.02983.03018.03204.03170.03299.03282.03169.03095.03189.03364.03265.03086.03323.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:GrossProfit ▆▄▃▃▄▄▃▃▁▂▄▆▇███▇▆▆▅▃▂▃▃▃▄▄▄▄▄▄▄▄▄▄▄▆▃▂▂▁▁▁▁▂▂▂▁1566.01091.0960.0904.01083.01005.0935.0758.0465.0579.01044.01664.01852.01927.02013.01913.01681.01523.01533.01335.0821.0753.0906.0955.0930.01032.01110.01149.01029.01060.01141.01099.01050.01061.01059.01193.01472.0977.0648.0541.0469.0410.0475.0437.0535.0665.0687.0514.0
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments ▇▅▄▄▅▄▃▂▁▁▄▇█▃█▇▆▅▅▂▁▄▅▅▅▆▆▆▆▆▆▇▂▆▆▇█▇▅▅▅▅▅▅▅▆▆596.0249.085.0-3.0185.046.0-40.0-237.0-474.0-477.081.0583.0729.0-128.0774.0710.0415.0304.0321.0-271.0-485.080.0244.0314.0247.0412.0458.0460.0347.0406.0467.0532.0-230.0406.0468.0578.0802.0538.0160.0258.0171.0159.0239.0211.0292.0440.0471.0NA
us-gaap:IncomeTaxExpenseBenefit ▂▂▂▂▂▂▂▂▁▂▄▂▂▁█▂▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▃▂▂▂▂▂▂▂▂▂▂▂▂-26.052.023.057.037.029.099.039.0-277.0104.0568.072.0-27.0-189.01597.029.0135.056.086.095.0-119.06.0-7.031.027.028.020.037.030.031.037.037.035.015.0133.059.057.055.015.019.013.013.014.014.028.040.042.0NA
us-gaap:IncomeTaxesPaidNet 47.0NA107.0144.038.0122.0114.067.054.059.073.0191.043.037.067.073.0NANANANANANANANANA84.0NANANANANANANANANANANANANANANANANANANANANANA
us-gaap:InterestExpense ▃▃▃▃▃▄▄▄▄▄▄▄▄▆▇▇▇▇▇██▁▁▁80.081.081.084.087.099.0105.0122.0117.0118.0118.0116.0114.0160.0197.0205.0201.0205.0205.0236.0226.014.013.013.0NANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:InterestPaidNet 38.0NA40.0104.045.0121.063.0143.076.0139.077.0139.075.0325.0237.071.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLoss ▇▆▅▄▅▅▄▃▄▂▂▇█▅▁█▆▆▆▃▃▅▆▆▆▆▇▇▆▆▇▇▃▆▆▇█▇▅▆▅▅▆▆▆▆▇▆622.0197.062.0-60.0148.017.0-139.0-276.0-197.0-581.0-487.0511.0756.061.0-823.0681.0280.0248.0235.0-366.0-366.074.0251.0283.0220.0384.0438.0423.0317.0375.0430.0495.0-265.0391.0335.0519.0745.0483.0145.0239.0158.0146.0225.0197.0265.0400.0429.0288.0
us-gaap:NonoperatingIncomeExpense ▇███▇▇▇▇▇▇▇▇▇▁▇▇▆▇▇▅▆███████████████████-79.0-68.0-73.0-73.0-76.0-107.0-90.0-108.0-93.0-83.0-95.0-103.0-114.0-1042.0-181.0-195.0-237.0-221.0-224.0-503.0-290.0-8.0-7.0-8.0-8.0-9.0-8.0-9.0-5.0-13.0-11.0-10.0-9.0-11.0-10.0-14.0-6.0-4.0-2.0-1.0NA1.0-1.0NA0.0-1.0-2.0NA
us-gaap:OperatingExpenses ▅▅▅▅▅▅▅▅▅▆▅▆▆▆▇▆▆▆▆▇▆▄▄▄▄▄▄▄▄▄▄▃█▄▃▄▄▂▃▁▂▁▁▁▁▁▁891.0774.0802.0834.0822.0852.0885.0887.0846.0973.0868.0978.01009.01013.01058.01008.01029.0998.0988.01103.01016.0665.0655.0633.0675.0611.0644.0680.0719.0641.0663.0557.01271.0644.0581.0601.0664.0435.0486.0282.0297.0252.0235.0226.0243.0224.0214.0NA
us-gaap:OperatingIncomeLoss ▇▅▄▃▄▄▃▂▁▁▄▇▇███▆▆▆▄▂▄▄▅▄▅▅▅▅▅▆▆▂▅▆▆▇▆▄▄▄▄▄▄▅▅▅▅675.0317.0158.070.0261.0153.050.0-129.0-381.0-394.0176.0686.0843.0914.0955.0905.0652.0525.0545.0232.0-195.088.0251.0322.0255.0421.0466.0469.0352.0419.0478.0542.0-221.0417.0478.0592.0808.0542.0162.0259.0172.0158.0240.0211.0293.0441.0473.0319.0
us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax █▁57.0-14.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherComprehensiveIncomeLossNetOfTax NANANANA26.0-73.0-20.0-22.0-13.0-20.041.0-37.0-85.092.013.0-1.038.0101.0-312.012.071.039.036.0-24.0-17.029.0-18.0-26.016.045.0-30.016.0-55.011.0-6.029.0NA10.010.0-19.0NANANANANANANANA
us-gaap:OtherNonoperatingIncomeExpense █████████████▁██▇██▆▇███0.011.06.09.09.0-14.07.02.010.022.08.0-2.0-14.0-898.02.0-6.0-45.0-23.0-24.0-272.0-75.00.01.00.0NANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ResearchAndDevelopmentExpenseExcludingAcquiredInProcessCost ▇▇▆▇▇▇▇▇▆▇▇▇▇▇█▇▇█▇█▆▄▄▄▄▅▅▅▅▅▅▅▅▄▄▄▅▃▂▂▁▁▁▁▁▁▁598.0555.0535.0555.0546.0563.0578.0574.0523.0544.0539.0576.0577.0602.0629.0592.0604.0613.0585.0639.0494.0359.0389.0385.0381.0402.0426.0437.0413.0426.0421.0401.0402.0396.0378.0396.0406.0265.0191.0193.0188.0179.0169.0167.0155.0160.0154.0NA
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax ▇▅▅▅▆▆▆▅▄▅▆▇█▇██▇▇▇▇▄▃▄▄▄▄▅▅▄▅▅▅▅▅▅▅▇▃▁▂▂▂▂▂▂▂▂▁4920.04137.03943.03922.04287.04175.04234.04040.03634.03674.04233.05028.05117.05013.05336.05181.04842.04649.04888.04714.03495.02822.03317.03360.03191.03550.03888.03943.03651.03703.03972.03804.03728.03764.03824.04035.04754.03035.01995.02694.02403.02252.02475.02396.02382.02641.02619.02208.0
us-gaap:SellingGeneralAndAdministrativeExpense ▅▅▅▅▅▅▅▆▆▇▆▇▆▇▇▇▆▆▇▇█▃▄▃▃▄▃▄▄▄▄▂▃▃▃▃▃▃▂▂▂▁▁▁297.0287.0265.0256.0269.0281.0298.0305.0299.0353.0309.0356.0352.0376.0381.0364.0345.0346.0358.0396.0432.0166.0207.0192.0190.0199.0164.0220.0198.0202.0229.0132.0180.0185.0162.0179.0178.0155.096.089.0109.073.066.059.0NANANANA
  2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-012010-07-022010-04-022010-01-012009-10-02
  2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-012010-07-022010-04-022010-01-012009-10-02
us-gaap:Assets ▆▆▆▆▆▆▆▆▆▆▇▇▇▇▇▇▇▇▇▇█▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▁▁▁▁▁26132.025409.025552.025402.025662.025509.025860.026280.026370.026913.027939.028705.029235.029004.029840.030505.029860.029448.028975.029010.032862.014947.015466.015261.015181.015176.015139.015652.015499.015332.015282.014806.014036.013927.013929.014172.014206.014510.07807.08467.08118.07839.07843.0NA7328.0NANANA
us-gaap:Liabilities ▆▆▆▆▆▆▆▆▆▆▆▆▇▇▇▇▇▇▇▇█▂▂▂▂▂▂▃▃▃▃▃▃▂▂▃▃▃▁▁▁▁▁15411.015460.015723.015826.016111.016266.016481.016714.016403.016699.017027.017330.017704.017704.018568.018446.018442.018417.018243.018235.021717.05338.05909.05925.05962.05950.06057.06689.06657.06564.06703.06553.06143.05504.05682.06135.06537.07094.01884.02744.02630.02523.02684.0NA2619.0NANANA
us-gaap:LiabilitiesAndStockholdersEquity ▆▆▆▆▆▆▆▆▆▆▇▇▇▇▇▇▇▇▇▇█▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▁▁▁▁▁26132.025409.025552.025402.025662.025509.025860.026280.026370.026913.027939.028705.029235.029004.029840.030505.029860.029448.028975.029010.032862.014947.015466.015261.015181.015176.015139.015652.015499.015332.015282.014806.014036.013927.013929.014172.014206.014510.07807.08467.08118.07839.07843.0NA7328.0NANANA
us-gaap:StockholdersEquity ▇▆▆▅▅▅▅▅▆▆▇▇▇▇▇█▇▇▇▇▇▆▅▅▅▅▅▅▅▅▄▄▄▄▄▄▄▃▂▂▁▁▁10721.09949.09829.09576.09551.09243.09379.09566.09967.010214.010912.011375.011531.011300.011272.012059.011418.011031.010732.010775.011145.09609.09557.09336.09219.09226.09082.08963.08842.08768.08579.08253.07893.08423.08247.08037.07669.07416.05923.05723.05488.05316.05159.0NA4709.0NANANA
  2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-012010-07-022010-04-022010-01-012009-10-02
us-gaap:AssetsCurrent ▅▅▅▅▅▄▄▄▄▅▅▆▆▆▇▇▇▆▅▅█▄▅▄▄▄▄▅▄▄▄▄▃▃▃▃▃▃▁▂▁▁▁9757.09032.09109.09005.09048.08553.08627.08500.08477.08902.09742.010571.010638.010164.011113.011820.011056.010313.09606.09123.012584.08740.08948.08655.08517.08429.08660.08990.08720.08306.08288.08261.07598.07340.07175.07186.07141.07445.05398.05926.05487.05153.05120.0NA4720.0NANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue ▂▁▁▁▁▁▂▂▂▂▃▃▄▄▆▆▆▅▄▃█▅▄▄▄▄▄▄▄▃▃▄▃▃▂▂▂▂▃▂3370.02734.02956.02995.03048.02943.03137.03248.03455.03682.04013.04646.05005.04963.06272.06886.06354.05652.04940.04077.08151.05887.05363.05081.05024.04812.04902.05159.04804.04569.04655.04869.04309.04060.03816.03537.03208.03377.03924.03675.0NA3230.03110.02858.02734.02826.02435.0NA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents ▃▁▂▂▂▂▂▃▃▄▅▇██3370.02734.02956.02995.03048.02943.03137.03248.03455.03682.04013.04646.05005.04963.0NANA6354.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AccountsReceivableNetCurrent ▇▆▆▇█▆▅▄▃▃▅▇▇▆▇▇▆▆▆▆▄▃▅▅▄▅▆▆▆▆▆▅▅▅▅▆██▁▄▃▃▃2257.01905.01833.02097.02379.01978.01791.01448.01204.01223.01715.02219.02197.02011.02052.02101.01948.01948.02004.02023.01461.01254.01650.01616.01532.01696.01880.01915.01989.01802.01959.01791.01793.01700.01732.01951.02364.02377.0747.01356.01206.01171.01250.0NA1256.0NANANA
us-gaap:InventoryNet ███▇▇▇▇▇▇▇▇▇▆▆▅▅▅▅▅▅▅▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▁▁▁▁▁3616.03683.03576.03355.03070.03091.03122.03287.03283.03440.03427.03119.02944.02670.02281.02302.02341.02254.02085.02109.02129.01227.01238.01260.01368.01322.01282.01272.01226.01277.01293.01244.01188.01197.01204.01304.01210.01282.0466.0645.0577.0574.0568.0NA560.0NANANA
us-gaap:OtherAssetsCurrent ▅██▆▆▅▆▅▅▆▆▆▅▅▅▅▄▄▄▇▆▂▁▃▃▃▃▄▄▃▄▃▃▄▄▄▃▄▂▂▁▁▁514.0710.0744.0558.0551.0541.0577.0517.0535.0557.0587.0587.0492.0500.0485.0496.0389.0434.0416.0666.0616.0226.0200.0351.0331.0371.0355.0422.0417.0362.0381.0357.0308.0383.0423.0394.0359.0409.0261.0250.0214.0178.0192.0NA170.0NANANA
  2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-012010-07-022010-04-022010-01-012009-10-02
us-gaap:NoncurrentAssets 3188.0NANANA2854.0NANANA2843.0NANANA3095.0NANANA3033.0NANANA3503.0NANANA2965.0NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PropertyPlantAndEquipmentGross ██▇▇▇▆▆▆▆▇▇▇▇▆▆▆▅▅▅▅▆▄▄▄▄▃▃▃▃▃▂▂▂▂▂▁▁10959.010849.010564.010474.010300.010085.09957.09956.010003.010638.010517.010331.010186.09956.09835.09725.09526.09544.09594.09587.09632.08778.08716.08635.08604.08520.08353.08244.08123.07991.07879.07764.07616.07561.07490.07324.07173.0NANANA4837.0NANANA4223.0NANANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment ████▇▇▇▇▇█▇▇▇▇▆▆▆▆▆▆▆▅▅▅▅▅▄▄▄▃▃▃▂▂▂▁▁7771.07788.07646.07577.07446.07350.07235.07160.07160.07607.07440.07277.07091.06945.06781.06677.06493.06445.06356.06228.06129.06091.05915.05745.05639.05469.05254.05042.04830.04585.04370.04126.03916.03758.03552.03297.03106.0NANANA2613.0NANANA2064.0NANANA
us-gaap:PropertyPlantAndEquipmentNet ▅▄▄▄▄▃▃▃▄▄▄▄▄▄▄▄▄▄▅▅▆▃▃▄▄▄▄▅▅▅▆▆▆▇▇███▁▁▁▂▂3188.03061.02918.02897.02854.02735.02722.02796.02843.03031.03077.03054.03095.03011.03054.03048.03033.03099.03238.03359.03503.02687.02801.02890.02965.03051.03099.03202.03293.03406.03509.03638.03700.03803.03938.04027.04067.04171.02091.02209.02224.02249.02277.0NA2159.0NANANA
us-gaap:Goodwill █████████████████████▃▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▁▁▁▁▁10066.010066.010071.010069.010067.010066.010069.010090.010076.010075.010074.010072.010075.010079.010076.010073.010014.010012.010005.09967.09951.02766.02766.02766.02766.02745.02566.02559.02559.02558.02555.02051.01954.01954.01907.01944.01975.01851.0151.0151.0151.0151.0151.0NA146.0NANANA
us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill NA80.080.080.080.080.080.080.072.072.080.080.080.080.080.0703.0696.0695.0695.02435.02435.0NANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass us-gaap:InProcessResearchAndDevelopment80.0NANANA80.0NANANA72.08.0NANA80.0NANANA696.0NANANA2435.0NANANA105.0NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IntangibleAssetsNetExcludingGoodwill ▁▁▁▁▂▂▂▃▃▃▄▄▄▅▅▆▆▇▇██442.0519.0596.0758.0941.01126.01311.01514.01711.01918.02148.02404.02680.02956.03230.03545.03823.04144.04469.04791.05034.0NANANA332.0NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:FiniteLivedIntangibleAssetsNet 362.0NANANA861.0NANANA1639.0NANANA2600.0NANANA3127.0NANANA2599.0NANANA332.0NANANA454.0NANANA605.0656.0709.0746.0799.0840.063.067.071.0NANANA88.0NANANA
us-gaap:DeferredTaxAssetsLiabilitiesNet 188.0NANANANANANANANANANANANANANANANANANANA-88.0NANANA304.0NANANA345.0NANANA282.0NANANA334.0NANANA241.0NANANA261.0NANANA
us-gaap:OperatingLeaseRightOfUseAsset ▁▄▇▃▄▅██222.0232.0239.0228.0230.0233.0242.0243.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsNoncurrent ██▇▇▆▆▆▆▄▄▄▄▅▅▄▄▄▄▄▄▅▄▅▅▅▄▃▄▄▄▃▂▂▁▂▂▂▂▁▁▂▂▂1093.01037.01000.0927.0877.0872.0810.0751.0472.0584.0580.0576.0642.0634.0522.0557.0594.0589.0575.0553.0619.0486.0659.0631.0601.0551.0455.0495.0473.0523.0323.0240.0179.0174.0200.0269.0224.0203.0104.0114.0185.0211.0216.0NA215.0NANANA
  2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-012010-07-022010-04-022010-01-012009-10-02
us-gaap:AccountsPayableCurrent ▅▄▅▅▅▄▄▄▄▄▅▅▆▆▅▅▆▆▅▅▅▄▄▄▅▅▅▅▅▅▆▅▅▅▆▇██▁▄▃▃▄1934.01807.01939.01949.01945.01786.01736.01724.01567.01577.01925.02081.02265.02134.01921.02066.02144.02185.02012.01946.01888.01571.01806.01799.01881.02020.02071.02016.01971.01902.02106.02061.01990.02037.02185.02545.02773.02774.0883.01708.01545.01486.01628.0NA1507.0NANANA
us-gaap:AccruedLiabilitiesCurrent █▇▇▆▆██▇▆█▇▆▆▅▆▆▅▅▅▅▅▃▂▂▂▂▂▂▂▂▂▂▂▄▃▄▄▄▂▁▁▁▁1653.01552.01420.01293.01296.01569.01559.01374.01296.01645.01526.01305.01274.01015.01191.01271.01069.01073.01001.0983.0995.0579.0505.0528.0470.0503.0496.0433.0412.0455.0479.0406.0480.0837.0722.0774.0858.0837.0364.0348.0349.0250.0262.0NA281.0NANANA
us-gaap:LiabilitiesCurrent ▅▅▅▅▅▅▅▅▄▄▅▅▅▅▅▅▅▅▄▄█▃▃▃▃▃▃▄▄▄▅▅▄▃▃▄▄▅▁▂▂▂▂4870.04501.04526.04429.04406.04471.04482.04288.03817.04212.04350.04385.04456.04259.04353.04469.04344.04309.04088.03919.06949.02781.03245.03231.03242.03218.03289.03918.03845.03747.04620.04427.03973.03226.03326.03695.04032.04535.01552.02354.02170.01995.02144.0NA2023.0NANANA
us-gaap:LongTermDebtCurrent ▆▆▆▇▇▇▇▆▆▆▅▅▄▂▆▆▅▄▂▁█▄▄▄▃▃▂▂▂▂▅▅▅▅▇▅▅▅▄▃▃▂▂251.0251.0251.0286.0286.0286.0286.0251.0276.0276.0244.0213.0179.0124.0274.0258.0233.0181.0129.078.0339.0203.0188.0172.0156.0141.0125.0125.0125.0125.0230.0230.0230.0230.0288.0230.0230.0230.0181.0163.0144.0125.0119.0NA106.0NANANA
us-gaap:OperatingLeaseLiabilityCurrent ▁▄█▇33.035.038.037.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-012010-07-022010-04-022010-01-012009-10-02
us-gaap:LongTermDebt ▁▁▁▂▂▂▂▂▃▃▃▃▃▃▄▅▅▅▅▅█8725.08929.09133.09372.09575.09629.09833.010212.010522.010585.010614.011143.011172.011200.012051.013131.013151.013088.013073.013133.016994.0NANANA2312.0NANANA2438.0NA1800.0NA1955.0NANANA2185.0NANANA294.0NANANA400.0NANANA
us-gaap:LongTermDebtNoncurrent ▅▅▆▆▆▆▆▆▆▆▆▇▇▇▇██████▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁8474.08678.08882.09086.09289.09343.09547.09961.010246.010309.010370.010930.010993.011076.011777.012873.012918.012907.012944.013055.013660.02000.02062.02109.02156.02203.02250.02281.02313.02344.01610.01668.01725.01783.01840.01898.01955.02013.050.0100.0150.0200.0231.0NA294.0NANANA
 us-gaap:DeferredFinanceCostsNoncurrentNet us-gaap:DebtInstrument,us-gaap:LongtermDebtType wdc:OnePointFiftyPercentSeniorConvertibleNotesDueTwoThousandTwentyFour,us-gaap:ConvertibleDebt15.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent ▆▇█▇▇▁▁131.0152.0159.0152.0150.065.067.0NA71.054.056.0NA59.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherLiabilitiesNoncurrent ▇▇███████▇▇▇▇██▄▄▄▄▄▄▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁2067.02281.02315.02311.02416.02452.02452.02465.02340.02178.02307.02015.02255.02369.02438.01104.01180.01201.01211.01261.01108.0557.0602.0585.0564.0529.0518.0490.0499.0473.0473.0458.0445.0495.0516.0542.0550.0546.0282.0290.0310.0328.0309.0NA302.0NANANA
us-gaap:OperatingLeaseLiabilityNoncurrent ▁▅█▂204.0211.0216.0206.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo █▇▇▁34.033.033.029.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree ███▁33.033.033.029.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour ███▁31.031.031.027.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive 30.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive 116.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-012010-07-022010-04-022010-01-012009-10-02
us-gaap:StockholdersEquity ▇▆▆▅▅▅▅▅▆▆▇▇▇▇▇█▇▇▇▇▇▆▅▅▅▅▅▅▅▅▄▄▄▄▄▄▄▃▂▂▁▁▁10721.09949.09829.09576.09551.09243.09379.09566.09967.010214.010912.011375.011531.011300.011272.012059.011418.011031.010732.010775.011145.09609.09557.09336.09219.09226.09082.08963.08842.08768.08579.08253.07893.08423.08247.08037.07669.07416.05923.05723.05488.05316.05159.0NA4709.0NANANA
us-gaap:AdditionalPaidInCapital ▆▆▆▆▆▆▆▆▇▇▇▇▇▇███████▄▄▄▄▄▄▃▄▄▃▃▃▃▃▃▃▃▁▁▁▁▁3608.03603.03546.03537.03717.03743.03731.03728.03851.03891.04062.04085.04254.04277.04410.04396.04506.04477.04574.04492.04429.02454.02421.02407.02428.02369.02318.02285.02331.02314.02262.02205.02188.02232.02224.02224.02223.02150.01151.01106.01091.01064.01040.0NA1022.0NANANA
us-gaap:RetainedEarningsAccumulatedDeficit ▆▅▄▄▄▄▄▅▅▆▇█▇▆▆█▇▇▇▇▇████▇▇▇▆▆▆▅▄▅▄▄▄▃▂▂▁▁▁7539.06917.06720.06658.06725.06578.06717.07012.07449.07799.08532.09172.08757.08155.08250.09229.08633.08507.08411.08329.08848.09363.09407.09273.09107.09004.08738.08394.08066.07845.07541.07183.06749.07073.06744.06470.06012.05267.04784.04639.04400.04242.04096.0NA3674.0NANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▁▁▄▃▂▂▃▄▄▄▅▄▅▇▅▄▄▃▁██▆▅▅▅▅▅▅▆▅▄▅▅▆▆▆▅▅▅▅▅▆▆-197.0-210.0-50.0-101.0-157.0-183.0-110.0-90.0-68.0-55.0-35.0-76.0-39.046.0-46.0-59.0-58.0-96.0-197.0115.0103.032.0-8.0-44.0-20.0-3.0-32.0-14.012.0-4.0-49.0-19.0-35.020.08.014.0-15.0-4.0-14.0-24.0-5.08.021.0NA11.0NANANA
us-gaap:TreasuryStockValue ▁▁▂▂▃▃▃▄▅▅▆▆▅▄▅▅▆▇▇██████▇▇▆▆▅▄▄▄▃▃▂▂232.0364.0390.0521.0737.0898.0962.01087.01268.01424.01650.01809.01444.01181.01345.01510.01666.01860.02059.02164.02238.02243.02266.02303.02299.02147.01945.01705.01570.01390.01178.01119.01012.0905.0732.0674.0554.0NANANANANANANANANANANA
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue NA83.080.076.0NA78.077.077.0NA84.079.079.0NA103.099.097.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents us-gaap:AdditionalPaidInCapitalNA83.080.076.0NA78.077.077.0NA84.079.079.0NA103.099.097.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-012010-07-022010-04-022010-01-012009-10-02
us-gaap:NetCashProvidedByUsedInOperatingActivities 994.0NA425.0363.0172.0142.0257.0253.0169.0204.0469.0705.0863.01027.01182.01133.0939.0998.01060.0440.0355.0NA598.0545.0488.0684.0243.0827.0712.0698.0726.0680.0684.0727.0772.0936.01129.01208.0378.0352.0447.0NA505.0390.0363.0NANANA
us-gaap:NetCashProvidedByUsedInInvestingActivities -203.0NA-270.0-166.086.032.0126.034.0-230.0-317.0-466.0-259.0-249.0-399.0-629.0-378.0-190.0-130.0-114.0-202.0-9597.0NA-181.0-273.0-241.0-458.0-128.0-126.0-180.0-631.0-765.0-360.0-136.0-164.0-279.0-391.0-233.0-3681.0-119.0-134.0-168.0NA-250.0-200.0-438.0NANANA
us-gaap:NetCashProvidedByUsedInFinancingActivities -155.0NA-197.0-253.0-154.0-369.0-493.0-492.0-172.0-219.0-631.0-807.0-563.0-1946.0-1167.0-224.0-49.0-160.0-74.0-4312.011505.0NA-135.0-215.0-35.0-316.0-372.0-346.0-297.0-153.0-175.0240.0-299.0-319.0-214.0-216.0-1070.01932.0-10.0-33.0-19.0NA-3.0-66.0-17.0NANANA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect 636.0NA-39.0-53.0105.0-194.0-111.0-207.0-227.0-331.0-633.0-359.042.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-012010-07-022010-04-022010-01-012009-10-02
us-gaap:DeferredIncomeTaxExpenseBenefit -201.0NA-16.011.0-29.0-11.0-15.0-27.0121.0-28.080.0201.0-12.0-207.0-165.036.0-49.0-56.0-30.0147.0-132.0NA22.0-7.019.0-22.021.010.053.0-27.0-29.0-10.0-24.0-9.080.0-12.0-8.024.09.09.016.0NANANA29.0NANANA
us-gaap:IncreaseDecreaseInAccountsReceivable 353.0NA-264.0-282.0401.0187.0344.0243.0-18.0-493.0-504.022.0186.0-41.0-49.0148.0-2.0-51.0-22.0562.0-188.0NA34.084.0-164.0-185.0-35.0-74.0187.0-157.0170.0-25.081.0-32.0-220.0-413.0-40.0337.0-609.0150.036.0NA-75.068.0-1.0NANANA
us-gaap:IncreaseDecreaseInInventories -67.0NA220.0285.0-21.0-24.0-160.05.0-157.013.0308.0175.0274.0389.0-21.0-44.087.0169.0-24.0-28.0-168.0NA-22.0-105.047.040.010.046.0-50.0-16.045.021.0-9.0-6.0-101.094.0-71.094.0-179.068.03.0NA7.01.017.0NANANA
us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet -112.0NA166.0139.06.082.093.0176.0-64.073.0-192.0404.049.043.0-1557.0132.0-92.0-71.0-91.079.0-62.0NA-1.01.0-35.013.0-99.024.018.0-20.09.023.0-34.09.0-21.062.0-46.0-37.020.0-7.057.0NA-8.017.0-37.0NANANA
us-gaap:NetCashProvidedByUsedInOperatingActivities 994.0NA425.0363.0172.0142.0257.0253.0169.0204.0469.0705.0863.01027.01182.01133.0939.0998.01060.0440.0355.0NA598.0545.0488.0684.0243.0827.0712.0698.0726.0680.0684.0727.0772.0936.01129.01208.0378.0352.0447.0NA505.0390.0363.0NANANA
us-gaap:NetIncomeLoss ▇▆▅▄▅▅▄▃▄▂▂▇█▅▁█▆▆▆▃▃▅▆▆▆▆▇▇▆▆▇▇▃▆▆▇█▇▅▆▅▅▆▆▆▆▇▆622.0197.062.0-60.0148.017.0-139.0-276.0-197.0-581.0-487.0511.0756.061.0-823.0681.0280.0248.0235.0-366.0-366.074.0251.0283.0220.0384.0438.0423.0317.0375.0430.0495.0-265.0391.0335.0519.0745.0483.0145.0239.0158.0146.0225.0197.0265.0400.0429.0288.0
us-gaap:ShareBasedCompensation 79.0NA80.076.076.078.077.077.064.084.079.079.078.0103.099.097.091.0102.0102.099.070.0NA37.042.045.037.041.039.031.041.042.042.030.036.032.039.031.020.024.017.015.0NA18.019.017.0NANANA
  2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-012010-07-022010-04-022010-01-012009-10-02
us-gaap:NetCashProvidedByUsedInInvestingActivities -203.0NA-270.0-166.086.032.0126.034.0-230.0-317.0-466.0-259.0-249.0-399.0-629.0-378.0-190.0-130.0-114.0-202.0-9597.0NA-181.0-273.0-241.0-458.0-128.0-126.0-180.0-631.0-765.0-360.0-136.0-164.0-279.0-391.0-233.0-3681.0-119.0-134.0-168.0NA-250.0-200.0-438.0NANANA
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment 326.0NA239.0337.0215.0127.0160.0145.0154.0222.0223.0277.0192.0227.0256.0160.0125.0123.0146.0184.0151.0NA149.0151.0156.0150.0146.0160.0161.0161.0170.0136.0136.0188.0246.0382.0324.0140.0119.0134.0153.0NA250.0200.0185.0NANANA
us-gaap:PaymentsToAcquireInvestments NANANANA0.00.00.00.010.036.022.011.023.09.019.038.07.035.0155.084.0170.0NA172.0236.0NANANANANANANANANANANANANANANANANANANANANANANANA
  2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-012010-07-022010-04-022010-01-012009-10-02
us-gaap:NetCashProvidedByUsedInFinancingActivities -155.0NA-197.0-253.0-154.0-369.0-493.0-492.0-172.0-219.0-631.0-807.0-563.0-1946.0-1167.0-224.0-49.0-160.0-74.0-4312.011505.0NA-135.0-215.0-35.0-316.0-372.0-346.0-297.0-153.0-175.0240.0-299.0-319.0-214.0-216.0-1070.01932.0-10.0-33.0-19.0NA-3.0-66.0-17.0NANANA
us-gaap:RepaymentsOfLongTermDebt 213.0NA248.0213.063.0212.0388.0319.068.038.037.038.02493.010467.04052.062.0-482.03925.012.08242.02204.0NA32.031.031.031.032.031.031.02371.057.058.057.0115.00.058.0558.0287.032.031.031.0NA25.025.025.0NANANA
us-gaap:PaymentsOfDividends NANANANA150.0149.0149.0147.0146.0146.0144.0148.0150.0148.0148.0147.0146.0144.0142.0142.0117.0NA116.0115.0116.093.093.094.070.071.059.059.060.00.0NA0.0NANANANANANANANANANANANA
us-gaap:PaymentsForRepurchaseOfCommonStock NANANANA0.00.00.00.00.00.00.0563.0436.0155.00.00.00.00.00.00.00.0NA0.060.0198.0240.0309.0223.0272.0244.0150.0150.0235.0243.0NA218.0NANANANANANANANANANANANA
  2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-012010-07-022010-04-022010-01-012009-10-02
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument wdc:FourPointSeventyFivePercentSeniorUnsecuredNotesDueTwoThousandTwentySix4.75e-06NANANA4.75e-084.75e-084.75e-084.75e-084.75e-084.75e-084.75e-084.75e-084.75e-084.75e-08NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA

Shares Issued

us-gaap:SharesIssued us-gaap:StatementEquityComponents

us-gaap:SharesIssued

us-gaap:CommonStock


Shares
Period End2021-07-022020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302016-07-012015-07-032014-06-272013-06-282012-06-292011-07-012010-07-022009-07-032008-06-27
Value312312312312312312312312312312312312312312312312261261261261233231225225
Percentage of SharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TreasuryStock


Shares
Period End2021-07-022020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302016-07-012015-07-032014-06-272013-06-282012-06-292011-07-012010-07-022009-07-032008-06-27
Value4.0-8.010.0-12.013141719212316131517-18.0-28.031-27.0-24.0-15.00.00.00.0-1.0
Percentage of SharesIssued1.3-2.63.2-3.84.24.55.46.16.77.45.14.24.85.4-5.8-9.011.9-10.3-9.2-5.70.00.00.0-0.4

Common Stock Shares Issued

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesIssued


Common
Period End2021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-07-02
Value312312312312312312312312312312312312312312312312312312312261261261261261261261261261261261261261261261246261235234233232232231
Percentage of CommonStockSharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Common Stock Shares Outstanding

us-gaap:CommonStockSharesOutstanding

us-gaap:CommonStockSharesOutstanding


Common
Period End2021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-07-02
Value306306304302300299298295293291289296299297295294291288284233232231230231232234234235237236237238241243246261235234233232232231
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonStockSharesOutstanding us-gaap:StatementEquityComponents

us-gaap:TreasuryStock


Common
Period End2021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-28
Value-6.0-6.0-8.0-10.0-12.0-13.0-14.0-17.0
Percentage of CommonStockSharesOutstanding-2.0-2.0-2.6-3.3-4.0-4.3-4.7-5.8

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-04-022021-01-012020-04-032020-01-032019-10-042019-03-292018-12-282018-09-282018-03-302017-12-292017-09-292017-03-312016-12-302016-09-302016-04-012016-01-012015-10-022015-04-032015-01-022014-10-032014-03-282013-12-272013-09-272013-03-292012-12-282012-09-282012-03-302011-12-302011-09-302011-04-012010-12-312010-10-012010-04-022010-01-01
Value313307303298296292290298308296306299294285234234234236238240242243242245246252246237237236235234234232
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-04-022021-01-012020-04-032020-01-032019-10-042019-03-292018-12-282018-09-282018-03-302017-12-292017-09-292017-03-312016-12-302016-09-302016-04-012016-01-012015-10-022015-04-032015-01-022014-10-032014-03-282013-12-272013-09-272013-03-292012-12-282012-09-282012-03-302011-12-302011-09-302011-04-012010-12-312010-10-012010-04-022010-01-01
Value306305299298296292290292298296295289286285233232231231233234235236236239242246241234233232230230229227
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Share Outstanding Basic And Diluted

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted


Weighted
Period End2021-04-022021-01-012020-10-022020-04-032020-01-032019-10-04
Value313307303303298296
Percentage of WeightedAverageNumberOfShareOutstandingBasicAndDiluted100.0100.0100.0100.0100.0100.0

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount


Antidilutive
Period End2021-04-022021-01-012020-10-022020-04-032020-01-032019-10-042019-03-292018-12-282018-09-282018-03-302017-12-292017-09-292017-03-312016-12-302016-09-302016-04-012016-01-012015-10-022015-04-032015-01-022014-10-032014-03-282013-12-272013-09-272013-03-292012-12-282012-09-282012-03-302011-12-302011-09-302011-04-012010-12-312010-10-012010-04-022010-01-01
Value1.08.0163.0151517193.02.0122.02.05.05.06.06.04.01.01.00.02.02.01.04.07.03.03.07.04.04.04.04.01.01.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-07-022021-04-022021-01-012020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-012010-07-022010-04-022010-01-012009-10-02
Value2.040.640.20.490.06-0.47-0.93-0.67-1.99-1.681.752.530.2-2.782.310.960.860.82-1.28-1.40.321.081.230.951.661.881.811.351.61.822.1-1.121.641.382.112.932.00.621.030.680.630.980.861.151.751.891.28
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-07-022021-04-022021-01-012020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-012010-07-022010-04-022010-01-012009-10-02
Value2.010.630.20.490.06-0.47-0.93-0.67-1.99-1.681.712.460.2-2.782.230.930.830.8-1.28-1.40.321.071.210.941.631.841.761.321.551.772.05-1.121.61.362.062.871.960.611.010.670.620.960.841.131.711.851.25
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic And Diluted

us-gaap:EarningsPerShareBasicAndDiluted

us-gaap:EarningsPerShareBasicAndDiluted


Earnings
Period End2020-10-022019-10-04
Value-0.2-0.93
Percentage of EarningsPerShareBasicAndDiluted100.0100.0

Allocated Share Based Compensation Expense

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:AllocatedShareBasedCompensationExpense


Allocated
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-31
Value7983807676787777648479797810399979110210299704237422117181916242421182124252211159.08.09.09.0
Percentage of AllocatedShareBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.62.02.01.91.81.91.81.91.82.31.91.61.52.11.91.91.92.22.12.12.01.51.11.20.70.50.50.50.40.60.60.60.50.60.60.60.50.40.80.30.30.40.4

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:AwardType

us-gaap:EmployeeStockOption


Allocated
Period End2020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-02
Value2.01.02.02.04.03.04.05.06.06.06.07.08.010.0111213161214
Percentage of AllocatedShareBasedCompensationExpense2.61.32.62.66.23.65.16.37.75.86.17.28.89.810.812.118.638.132.433.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.00.10.10.10.10.10.10.10.10.20.20.20.30.40.60.40.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:EmployeeStockOption0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RestrictedStockUnitsRSU


Allocated
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-03
Value70737267646870665571706765898883768590795323242324212320
Percentage of AllocatedShareBasedCompensationExpense88.688.090.088.284.287.290.985.785.984.588.684.883.386.488.985.683.583.388.279.875.754.864.954.8114.3123.5127.8105.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.41.81.81.71.51.61.71.61.51.91.71.31.31.81.61.61.61.81.81.71.50.80.70.70.80.60.60.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RestrictedStockUnitsRSU0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

wdc:EmployeeStockPurchasePlan


Allocated
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-02
Value9.010.08.09.010.09.05.09.05.010.05.07.07.08.05.07.07.07.01.08.04.03.01.05.0
Percentage of AllocatedShareBasedCompensationExpense11.412.010.011.813.211.56.511.77.811.96.38.99.07.85.17.27.76.91.08.15.77.12.711.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.20.20.20.20.20.20.10.20.10.30.10.10.10.20.10.10.10.20.00.20.10.10.00.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wdc:EmployeeStockPurchasePlan0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:IncomeStatementLocation

us-gaap:CostOfSales


Allocated
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-02
Value14141512131313121113131112111313121311138.04.04.05.0
Percentage of AllocatedShareBasedCompensationExpense17.716.918.815.817.116.716.915.617.215.516.513.915.410.713.113.413.212.710.813.111.49.510.811.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.30.40.30.30.30.30.30.30.40.30.20.20.20.20.30.20.30.20.30.20.10.10.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CostOfSales0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ResearchAndDevelopmentExpense


Allocated
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-02
Value384140394041414133414239364545444145434430171515
Percentage of AllocatedShareBasedCompensationExpense48.149.450.051.352.652.653.253.251.648.853.249.446.243.745.545.445.144.142.244.442.940.540.535.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.81.01.01.00.91.01.01.00.91.11.00.80.70.90.80.80.81.00.90.90.90.60.50.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ResearchAndDevelopmentExpense0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:SellingGeneralAndAdministrativeExpenses


Allocated
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-02
Value272825252324232420302429304641403640434232151822
Percentage of AllocatedShareBasedCompensationExpense34.233.731.232.930.330.829.931.231.235.730.436.738.544.741.441.239.639.242.242.445.735.748.652.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.50.70.60.60.50.60.50.60.60.80.60.60.60.90.80.80.70.90.90.90.90.50.50.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:SellingGeneralAndAdministrativeExpenses0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-04-022021-01-012020-10-022020-04-032020-01-032019-10-04
Value37113-4.0-56.0-159.0-298.0
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.92.9-0.1-1.3-3.8-7.4

Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest


Comprehensive
Period End2020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-03-302011-12-302011-09-30
Value174-56.0-159.0-298.0-210.0-601.0-446.0474671153-810.0680318349-77.0-354.0-295.0113287259203413420397333420400511-320.0402329548493155220
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.1-1.3-3.8-7.4-5.8-16.4-10.59.413.13.1-15.213.16.67.5-1.6-7.5-8.44.08.77.76.411.610.810.19.111.310.113.4-8.610.78.613.616.27.88.2

Cost Of Goods And Services Sold

us-gaap:CostOfGoodsAndServicesSold

us-gaap:CostOfGoodsAndServicesSold


Cost
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-29
Value335430462983301832043170329932823169309531893364326530863323
Percentage of CostOfGoodsAndServicesSold100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax68.273.675.777.074.775.977.981.287.284.275.366.963.861.662.3

Gross Profit

us-gaap:GrossProfit

us-gaap:GrossProfit


Gross
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-012010-07-022010-04-022010-01-012009-10-02
Value15661091960904108310059357584655791044166418521927201319131681152315331335821753906955930103211101149102910601141109910501061105911931472977648541469410475437535665687514
Percentage of GrossProfit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax31.826.424.323.025.324.122.118.812.815.824.733.136.238.437.736.934.732.831.428.323.526.727.328.429.129.128.529.128.228.628.728.928.228.227.729.631.032.232.520.119.518.219.218.222.525.226.223.3

Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments


Income
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-012010-07-022010-04-022010-01-01
Value59624985-3.018546-40.0-237.0-474.0-477.081583729-128.0774710415304321-271.0-485.080244314247412458460347406467532-230.0406468578802538160258171159239211292440471
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.16.02.2-0.14.31.1-0.9-5.9-13.0-13.01.911.614.2-2.614.513.78.66.56.6-5.7-13.92.87.49.37.711.611.811.79.511.011.814.0-6.210.812.214.316.917.78.09.67.17.19.78.812.316.718.0

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-012010-07-022010-04-022010-01-01
Value-26.052235737299939-277.010456872-27.0-189.0159729135568695-119.06.0-7.03127282037303137373515133595755151913131414284042
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.51.30.61.50.90.72.31.0-7.62.813.41.4-0.5-3.829.90.62.81.21.82.0-3.40.2-0.20.90.80.80.50.90.80.80.91.00.90.43.51.51.21.80.80.70.50.60.60.61.21.51.6

Income Taxes Paid Net

us-gaap:IncomeTaxesPaidNet

us-gaap:IncomeTaxesPaidNet


Income
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292015-04-03
Value4710714438122114675459731914337677384
Percentage of IncomeTaxesPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.02.73.70.92.92.71.71.51.61.73.80.80.71.31.42.4

Interest Expense

us-gaap:InterestExpense

us-gaap:InterestExpense


Interest
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-02
Value808181848799105122117118118116114160197205201205205236226141313
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.62.02.12.12.02.42.53.03.23.22.82.32.23.23.74.04.24.44.25.06.50.50.40.4

Interest Paid Net

us-gaap:InterestPaidNet

us-gaap:InterestPaidNet


Interest
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-29
Value3840104451216314376139771397532523771
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.81.02.71.02.91.53.52.13.81.82.81.56.54.41.4

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-012010-07-022010-04-022010-01-012009-10-02
Value62219762-60.014817-139.0-276.0-197.0-581.0-487.051175661-823.0681280248235-366.0-366.074251283220384438423317375430495-265.0391335519745483145239158146225197265400429288
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.64.81.6-1.53.50.4-3.3-6.8-5.4-15.8-11.510.214.81.2-15.413.15.85.34.8-7.8-10.52.67.68.46.910.811.310.78.710.110.813.0-7.110.48.812.915.715.97.38.96.66.59.18.211.115.116.413.0

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-04-022021-01-012020-10-022020-04-032020-01-032019-10-042019-03-292018-12-282018-09-282018-03-302017-12-292017-09-29
Value19762-60.017-139.0-276.0-581.0-487.051161-823.0681
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.81.6-1.50.4-3.3-6.8-15.8-11.510.21.2-15.413.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.0

Nonoperating Income Expense

us-gaap:NonoperatingIncomeExpense

us-gaap:NonoperatingIncomeExpense


Nonoperating
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-04-012010-12-312010-07-022010-04-022010-01-01
Value-79.0-68.0-73.0-73.0-76.0-107.0-90.0-108.0-93.0-83.0-95.0-103.0-114.0-1042.0-181.0-195.0-237.0-221.0-224.0-503.0-290.0-8.0-7.0-8.0-8.0-9.0-8.0-9.0-5.0-13.0-11.0-10.0-9.0-11.0-10.0-14.0-6.0-4.0-2.0-1.01.0-1.00.0-1.0-2.0
Percentage of NonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.6-1.6-1.9-1.9-1.8-2.6-2.1-2.7-2.6-2.3-2.2-2.0-2.2-20.8-3.4-3.8-4.9-4.8-4.6-10.7-8.3-0.3-0.2-0.2-0.3-0.3-0.2-0.2-0.1-0.4-0.3-0.3-0.2-0.3-0.3-0.3-0.1-0.1-0.1-0.00.0-0.00.0-0.0-0.1

Operating Expenses

us-gaap:OperatingExpenses

us-gaap:OperatingExpenses


Operating
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-012010-07-022010-04-022010-01-01
Value89177480283482285288588784697386897810091013105810081029998988110310166656556336756116446807196416635571271644581601664435486282297252235226243224214
Percentage of OperatingExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax18.118.720.321.319.220.420.922.023.326.520.519.519.720.219.819.521.321.520.223.429.123.619.718.821.217.216.617.219.717.316.714.634.117.115.214.914.014.324.410.512.411.29.59.410.28.58.2

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-012010-07-022010-04-022010-01-012009-10-02
Value6753171587026115350-129.0-381.0-394.0176686843914955905652525545232-195.088251322255421466469352419478542-221.0417478592808542162259172158240211293441473319
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.77.74.01.86.13.71.2-3.2-10.5-10.74.213.616.518.217.917.513.511.311.14.9-5.63.17.69.68.011.912.011.99.611.312.014.2-5.911.112.514.717.017.98.19.67.27.09.78.812.316.718.114.4

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

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax


Other
Period End2021-07-022021-04-02
Value57-14.0
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.2-0.3

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax


Other
Period End2020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-03-302011-12-302011-09-30
Value26-73.0-20.0-22.0-13.0-20.041-37.0-85.09213-1.038101-312.012713936-24.0-17.029-18.0-26.01645-30.016-55.011-6.02910.010.0-19.0
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.6-1.7-0.5-0.5-0.4-0.51.0-0.7-1.71.80.2-0.00.82.2-6.40.32.01.41.1-0.7-0.50.8-0.5-0.70.41.2-0.80.4-1.50.3-0.20.70.30.5-0.7

Other Nonoperating Income Expense

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:OtherNonoperatingIncomeExpense


Other
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-02
Value0.0116.09.09.0-14.07.02.010.0228.0-2.0-14.0-898.02.0-6.0-45.0-23.0-24.0-272.0-75.00.01.00.0
Percentage of OtherNonoperatingIncomeExpense0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.30.20.20.2-0.30.20.00.30.60.2-0.0-0.3-17.90.0-0.1-0.9-0.5-0.5-5.8-2.10.00.00.0

Research And Development Expense Excluding Acquired In Process Cost

us-gaap:ResearchAndDevelopmentExpenseExcludingAcquiredInProcessCost

us-gaap:ResearchAndDevelopmentExpenseExcludingAcquiredInProcessCost


Research
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-012010-07-022010-04-022010-01-01
Value598555535555546563578574523544539576577602629592604613585639494359389385381402426437413426421401402396378396406265191193188179169167155160154
Percentage of ResearchAndDevelopmentExpenseExcludingAcquiredInProcessCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.213.413.614.212.713.513.714.214.414.812.711.511.312.011.811.412.513.212.013.614.112.711.711.511.911.311.011.111.311.510.610.510.810.59.99.88.58.79.67.27.87.96.87.06.56.15.9

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


Revenue
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-012010-07-022010-04-022010-01-012009-10-02
Value492041373943392242874175423440403634367442335028511750135336518148424649488847143495282233173360319135503888394336513703397238043728376438244035475430351995269424032252247523962382264126192208
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService

wdc:ClientDevices


Revenue
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-29
Value2166201221311946191618311797161616061625221426502474231126472676
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax44.048.654.049.644.743.942.440.044.244.252.352.748.346.149.651.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax44.048.654.049.644.743.942.440.044.244.252.352.748.346.149.651.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wdc:ClientDevices100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wdc:ClientSolutions


Revenue
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-29
Value97788810058476878219488927558049459321031104212551136
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax19.921.525.521.616.019.722.422.120.821.922.318.520.120.823.521.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax19.921.525.521.616.019.722.422.120.821.922.318.520.120.823.521.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wdc:ClientSolutions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wdc:DataCenterDevicesSolutions


Revenue
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-29
Value177712378071129168415231489153212731245107414461612166014341369
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax36.129.920.528.839.336.535.237.935.033.925.428.831.533.126.926.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax36.129.920.528.839.336.535.237.935.033.925.428.831.533.126.926.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wdc:DataCenterDevicesSolutions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementGeographical

srt:Americas


Revenue
Period End2021-04-022021-01-012020-10-022020-04-032020-01-032019-10-042019-03-292018-12-282018-09-28
Value10099451079132512961313107010151281
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax24.424.027.531.730.632.529.124.025.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax24.424.027.531.730.632.529.124.025.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Americas100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:Asia


Revenue
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-28
Value-5210.0221522732214-4456.0208021271948-5058.0185624012863
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-105.953.557.656.5-103.949.850.248.2-139.250.556.756.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-105.953.557.656.5-103.949.850.248.2-139.250.556.756.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Asia100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wdc:EuropeMiddleEastAndAfrica


Revenue
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-28
Value794913725629566770811779715748817884
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax16.122.118.416.013.218.419.219.319.720.419.317.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax16.122.118.416.013.218.419.219.319.720.419.317.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wdc:EuropeMiddleEastAndAfrica100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax wdc:FormFactor

wdc:Flashbased


Revenue
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-29
Value2419217520342078223820611838163215061610217325342363237326422571
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax49.252.651.653.052.249.443.440.441.443.851.350.446.247.349.549.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax49.252.651.653.052.249.443.440.441.443.851.350.446.247.349.549.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wdc:Flashbased100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wdc:HDD


Revenue
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-29
Value2501196219091844204921142396240821282064206024942754264026942610
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax50.847.448.447.047.850.656.659.658.656.248.749.653.852.750.550.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax50.847.448.447.047.850.656.659.658.656.248.749.653.852.750.550.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wdc:HDD100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Selling General And Administrative Expense

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:SellingGeneralAndAdministrativeExpense


Selling
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-01
Value2972872652562692812983052993533093563523763813643453463583964321662071921901991642201982022291321801851621791781559689109736659
Percentage of SellingGeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.06.96.76.56.36.77.07.58.29.67.37.16.97.57.17.07.17.47.38.412.45.96.25.76.05.64.25.65.45.55.83.54.84.94.24.43.75.14.83.34.53.22.72.5

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-07-02
Value2613225409255522540225662255092586026280263702691327939287052923529004298403050529860294482897529010328621494715466152611518115176151391565215499153321528214806140361392713929141721420614510780784678118783978437328
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

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-07-02
Value15411154601572315826161111626616481167141640316699170271733017704177041856818446184421841718243182352171753385909592559625950605766896657656467036553614355045682613565377094188427442630252326842619
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets59.060.861.562.362.863.863.763.662.262.060.960.460.661.062.260.561.862.563.062.966.135.738.238.839.339.240.042.743.042.843.944.343.839.540.843.346.048.924.132.432.432.234.235.7

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-07-02
Value2613225409255522540225662255092586026280263702691327939287052923529004298403050529860294482897529010328621494715466152611518115176151391565215499153321528214806140361392713929141721420614510780784678118783978437328
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 End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-07-022009-07-032008-06-27
Value10721994998299576955192439379956699671021410912113751153111300112721205911418110311073210775111459609955793369219922690828963884287688579825378938423824780377669741659235723548853165159470931922696
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets41.039.238.537.737.236.236.336.437.838.039.139.639.439.037.839.538.237.537.037.133.964.361.861.260.760.860.057.357.057.256.155.756.260.559.256.754.051.175.967.667.667.865.864.30.00.0

us-gaap:StockholdersEquity us-gaap:CumulativeEffectPeriodOfAdoption

srt:CumulativeEffectPeriodOfAdoptionAdjustment


Stockholders
Period End2020-07-032019-06-282018-06-292017-06-30
Value-7.0-5.05651
Percentage of StockholdersEquity-0.1-0.10.50.4
Percentage of Assets-0.0-0.00.20.2
Percentage of Assets srt:CumulativeEffectPeriodOfAdoptionAdjustment0.00.00.00.0

us-gaap:StockholdersEquity us-gaap:CumulativeEffectPeriodOfAdoption, us-gaap:StatementEquityComponents

srt:CumulativeEffectPeriodOfAdoptionAdjustment, us-gaap:RetainedEarnings


Stockholders
Period End2020-07-032019-06-282018-06-302018-06-292017-06-30
Value-7.0-5.0565670
Percentage of StockholdersEquity-0.1-0.10.00.50.6
Percentage of Assets-0.0-0.00.00.20.2
Percentage of Assets srt:CumulativeEffectPeriodOfAdoptionAdjustment us-gaap:RetainedEarnings0.00.00.00.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLoss


Stockholders
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-06-302016-07-01
Value-35.0-54.0-56.0-57.0-58.0-50.0-51.0-52.0-53.0-18.0-18.0-19.0-19.0-17.0-18.0-18.0-45.0
Percentage of StockholdersEquity-0.3-0.5-0.6-0.6-0.6-0.5-0.5-0.5-0.5-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.4
Percentage of Assets-0.1-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Stockholders
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-06-292017-06-30
Value-124.0-125.0-58.0-74.0-97.0-117.0-54.0-46.0-19.0-7.0111.0-1.0
Percentage of StockholdersEquity-1.2-1.3-0.6-0.8-1.0-1.3-0.6-0.5-0.2-0.10.10.0-0.0
Percentage of Assets-0.5-0.5-0.2-0.3-0.4-0.5-0.2-0.2-0.1-0.00.00.0-0.0
Percentage of Assets us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302016-07-012015-07-032014-06-272013-06-282012-06-292011-07-012010-07-022009-07-032008-06-27
Value-197.0-210.0-50.0-101.0-157.0-183.0-110.0-90.0-68.0-55.0-35.0-76.0-39.046-46.0-59.0-58.0103-20.012-35.0-15.0-5.0112.0-12.0
Percentage of StockholdersEquity-1.8-2.1-0.5-1.1-1.6-2.0-1.2-0.9-0.7-0.5-0.3-0.7-0.30.4-0.4-0.5-0.50.9-0.20.1-0.4-0.2-0.10.20.1-0.4
Percentage of Assets-0.8-0.8-0.2-0.4-0.6-0.7-0.4-0.3-0.3-0.2-0.1-0.3-0.10.2-0.2-0.2-0.20.3-0.10.1-0.2-0.1-0.10.20.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedTranslationAdjustment


Stockholders
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-06-302016-07-01
Value-38.0-31.06430-2.0-16.0-5.08.04.0-30.0-28.0-58.0-21.037-37.0-39.074
Percentage of StockholdersEquity-0.4-0.30.70.3-0.0-0.2-0.10.10.0-0.3-0.3-0.5-0.20.3-0.3-0.30.7
Percentage of Assets-0.1-0.10.30.1-0.0-0.1-0.00.00.0-0.1-0.1-0.2-0.10.1-0.1-0.10.2
Percentage of Assets us-gaap:AccumulatedTranslationAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302016-07-012015-07-032014-06-272013-06-282012-06-292011-07-012010-07-022009-07-032008-06-27
Value360836033546353737173743373137283851389140624085425442774410439645064429242823312188222310911022896906
Percentage of StockholdersEquity33.736.236.136.938.940.539.839.038.638.137.235.936.937.839.136.539.539.726.326.427.729.019.921.728.133.6
Percentage of Assets13.814.213.913.914.514.714.414.214.614.514.514.214.614.714.814.415.113.516.015.015.615.613.413.90.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302016-07-012015-07-032014-06-272013-06-282012-06-292011-07-012010-07-022009-07-032008-06-27
Value3.03.03.03.03.03.03.03.03.03.03.03.03.03.03.03.03.03.03.03.03.03.02.02.02.02.0
Percentage of StockholdersEquity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.1
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302016-07-012015-07-032014-06-272013-06-282012-06-292011-07-012010-07-022009-07-032008-06-27
Value75396917672066586725657867177012744977998532917287578155825092298633884891078066674960124400367422921822
Percentage of StockholdersEquity70.369.568.469.570.471.271.673.374.776.478.280.675.972.273.276.575.679.498.891.285.578.480.278.071.867.6
Percentage of Assets28.827.226.326.226.225.826.026.728.229.030.532.030.028.127.630.328.926.960.052.048.142.354.250.10.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


Stockholders
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302016-07-012015-07-032014-06-272013-06-282012-06-292011-07-012010-07-022009-07-032008-06-27
Value-232.0-364.0-390.0-521.0-737.0-898.0962-1087.01268-1424.0-1650.0-1809.01444-1181.0-1345.0-1510.0-1666.0-2238.0-2299.0-1570.0-1012.0-554.00.00.00.0-22.0
Percentage of StockholdersEquity-2.2-3.7-4.0-5.4-7.7-9.710.3-11.412.7-13.9-15.1-15.912.5-10.5-11.9-12.5-14.6-20.1-24.9-17.8-12.8-7.20.00.00.0-0.8
Percentage of Assets-0.9-1.4-1.5-2.1-2.9-3.53.7-4.14.8-5.3-5.9-6.34.9-4.1-4.5-5.0-5.6-6.8-15.1-10.1-7.2-3.90.00.00.00.0
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-07-02
Value9757903291099005904885538627850084778902974210571106381016411113118201105610313960691231258487408948865585178429866089908720830682888261759873407175718671417445539859265487515351204720
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 Assets37.335.535.635.435.333.533.432.332.133.134.936.836.435.037.238.737.035.033.231.438.358.557.956.756.155.557.257.456.354.254.255.854.152.751.550.750.351.369.170.067.665.765.364.4

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-052016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-06-302011-04-012010-12-312010-10-012010-07-022010-04-022010-01-012009-07-032008-06-27
Value33702734295629953048294331373248345536824013464650054963627268866354565249404077815181515887536350815024481249025159480445694655486943094060381635373208337739243675349032303110285827342826243517941104
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets12.910.811.611.811.911.512.112.413.113.714.416.217.117.121.022.621.319.217.014.10.024.839.434.733.333.131.732.433.031.029.830.532.930.729.227.425.022.623.350.343.40.041.239.70.037.30.00.00.00.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-06-302016-07-05
Value3370273429562995304829433137324834553682401346465005496363548151
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets12.910.811.611.811.911.512.112.413.113.714.416.217.117.121.30.0

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent

us-gaap:AccountsReceivableNetCurrent


Accounts
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-07-02
Value2257190518332097237919781791144812041223171522192197201120522101194819482004202314611254165016161532169618801915198918021959179117931700173219512364237774713561206117112501256
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.67.57.28.39.37.86.95.54.64.56.17.77.56.96.96.96.56.66.97.04.48.410.710.610.111.212.412.212.811.812.812.112.812.212.413.816.616.49.616.014.914.915.917.1

Inventory Net

us-gaap:InventoryNet

us-gaap:InventoryNet


Inventory
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-07-02
Value36163683357633553070309131223287328334403427311929442670228123022341225420852109212912271238126013681322128212721226127712931244118811971204130412101282466645577574568560
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 Assets13.814.514.013.212.012.112.112.512.412.812.310.910.19.27.67.57.87.77.27.36.58.28.08.39.08.78.58.17.98.38.58.48.58.68.69.28.58.86.07.67.17.37.27.6

Other Assets Current

us-gaap:OtherAssetsCurrent

us-gaap:OtherAssetsCurrent


Other
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-07-02
Value514710744558551541577517535557587587492500485496389434416666616226200351331371355422417362381357308383423394359409261250214178192170
Percentage of OtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.02.82.92.22.12.12.22.02.02.12.12.01.71.71.61.61.31.51.42.31.91.51.32.32.22.42.32.72.72.42.52.42.22.83.02.82.52.83.33.02.62.32.42.3

Noncurrent Assets

us-gaap:NoncurrentAssets

us-gaap:NoncurrentAssets


Noncurrent
Period End2021-07-022020-07-032019-06-282018-06-292017-06-302016-07-012015-07-03
Value3188285428433095303335032965
Percentage of NoncurrentAssets100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets12.211.110.810.610.210.719.5

us-gaap:NoncurrentAssets us-gaap:StatementGeographical

country:CN


Noncurrent
Period End2021-07-022020-07-032019-06-282018-06-292017-06-302016-07-012015-07-032014-06-272013-06-282012-06-29
Value395373420427443463218279348428
Percentage of NoncurrentAssets12.413.114.813.814.613.27.40.00.00.0
Percentage of Assets1.51.51.61.51.51.41.41.82.53.0
Percentage of Assets country:CN0.00.00.00.00.00.00.00.00.00.0

country:MY


Noncurrent
Period End2021-07-022020-07-032019-06-282018-06-292017-06-30
Value632643667737556
Percentage of NoncurrentAssets19.822.523.523.818.3
Percentage of Assets2.42.52.52.51.9
Percentage of Assets country:MY0.00.00.00.00.0

country:TH


Noncurrent
Period End2021-07-022020-07-032019-06-282018-06-292017-06-30
Value651472405349392
Percentage of NoncurrentAssets20.416.514.211.312.9
Percentage of Assets2.51.81.51.21.3
Percentage of Assets country:TH0.00.00.00.00.0

country:US


Noncurrent
Period End2021-07-022020-07-032019-06-282018-06-292017-06-302016-07-012015-07-032014-06-272013-06-282012-06-29
Value10689499621187124914062465241515171687
Percentage of NoncurrentAssets33.533.333.838.441.240.183.10.00.00.0
Percentage of Assets4.13.73.64.14.24.316.215.610.811.9
Percentage of Assets country:US0.00.00.00.00.00.00.00.00.00.0

srt:Asia


Noncurrent
Period End2021-07-022020-07-032019-06-282018-06-29
Value398366335336
Percentage of NoncurrentAssets12.512.811.810.9
Percentage of Assets1.51.41.31.1
Percentage of Assets srt:Asia0.00.00.00.0

wdc:EuropeMiddleEastAndAfrica


Noncurrent
Period End2021-07-022020-07-032019-06-282018-06-292017-06-302016-07-012015-07-032014-06-272013-06-282012-06-292011-07-01
Value44515459486.032683139351.0
Percentage of NoncurrentAssets1.41.81.91.91.60.211.00.00.00.00.0
Percentage of Assets0.20.20.20.20.20.02.10.51.00.20.0
Percentage of Assets wdc:EuropeMiddleEastAndAfrica0.00.00.00.00.00.00.00.00.00.00.0

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


Property
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292011-07-012010-07-02
Value10959108491056410474103001008599579956100031063810517103311018699569835972595269544959495879632877887168635860485208353824481237991787977647616756174907324717348374223
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets41.942.741.341.240.139.538.537.937.939.537.636.034.834.333.031.931.932.433.133.029.358.756.456.656.756.155.252.752.452.151.652.454.354.353.851.750.559.657.6

us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

us-gaap:BuildingAndBuildingImprovements


Property
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-29
Value1854182017931865183718231806178317432012197519651949
Percentage of PropertyPlantAndEquipmentGross16.916.817.017.817.818.118.117.917.418.918.819.019.1
Percentage of Assets7.17.27.07.37.27.17.06.86.67.57.16.86.7
Percentage of Assets us-gaap:BuildingAndBuildingImprovements0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ConstructionInProgress


Property
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012015-07-032014-06-272013-06-282012-06-292011-07-01
Value476411321327297190184190202211238251234196175152144115119149245296342375597315
Percentage of PropertyPlantAndEquipmentGross4.33.83.03.12.91.91.81.92.02.02.32.42.32.01.81.61.51.21.21.62.53.44.24.98.36.5
Percentage of Assets1.81.61.31.31.20.70.70.70.80.80.90.90.80.70.60.50.50.40.40.50.71.92.22.74.23.9
Percentage of Assets us-gaap:ConstructionInProgress0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FurnitureAndFixtures


Property
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012015-07-032014-06-272013-06-282012-06-292011-07-012010-07-02
Value51525252525155555655545148495050116525250110715439159.09.0
Percentage of PropertyPlantAndEquipmentGross0.50.50.50.50.50.50.60.60.60.50.50.50.50.50.50.51.20.50.50.51.10.80.70.50.20.20.2
Percentage of Assets0.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.40.20.20.20.30.50.30.30.10.10.1
Percentage of Assets us-gaap:FurnitureAndFixtures0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Land


Property
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-29
Value278278278286294294294294294307307306306
Percentage of PropertyPlantAndEquipmentGross2.52.62.62.72.92.93.03.02.92.92.93.03.0
Percentage of Assets1.11.11.11.11.11.21.11.11.11.11.11.11.0
Percentage of Assets us-gaap:Land0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:MachineryAndEquipment


Property
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012015-07-032014-06-272013-06-282012-06-292011-07-012010-07-02
Value786078327684751473917290717171847267759374937311720971027011695068687008706471557070652061095738521139633470
Percentage of PropertyPlantAndEquipmentGross71.772.272.771.771.872.372.072.272.671.471.270.870.871.371.371.572.173.473.674.673.475.875.275.372.681.982.2
Percentage of Assets30.130.830.129.628.828.627.727.327.628.226.825.524.724.523.522.823.023.824.424.721.542.939.440.936.748.847.4
Percentage of Assets us-gaap:MachineryAndEquipment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

wdc:ComputerEquipmentandSoftware


Property
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-30
Value440456436430429437447450441460450447440432433420405
Percentage of PropertyPlantAndEquipmentGross4.04.24.14.14.24.34.54.54.44.34.34.34.34.34.44.34.3
Percentage of Assets1.71.81.71.71.71.71.71.71.71.71.61.61.51.51.51.41.4
Percentage of Assets wdc:ComputerEquipmentandSoftware0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292011-07-012010-07-02
Value777177887646757774467350723571607160760774407277709169456781667764936445635662286129609159155745563954695254504248304585437041263916375835523297310626132064
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets29.730.729.929.829.028.828.027.227.228.326.625.424.323.922.721.921.721.921.921.518.740.838.237.637.136.034.732.231.229.928.627.927.927.025.523.321.932.228.2

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-07-02
Value31883061291828972854273527222796284330313077305430953011305430483033309932383359350326872801289029653051309932023293340635093638370038033938402740674171209122092224224922772159
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets12.212.011.411.411.110.710.510.610.811.311.010.610.610.410.210.010.210.511.211.610.718.018.118.919.520.120.520.521.222.223.024.626.427.328.328.428.628.726.826.127.428.729.029.5

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-05-122016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-07-02
Value1006610066100711006910067100661006910090100761007510074100721007510079100761007310014100121000599679951724927662766276627662745256625592559255825552051195419541907194419751851151151151151151146
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets38.539.639.439.639.239.538.938.438.237.436.135.134.534.833.833.033.534.034.534.430.30.018.517.918.118.218.116.916.316.516.716.713.913.914.013.713.713.912.81.91.81.91.91.92.0

Indefinite Lived Intangible Assets Excluding Goodwill

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill


Indefinite
Period End2021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-01
Value808080808080807272808080808070369669569524352435
Percentage of IndefiniteLivedIntangibleAssetsExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.30.30.30.30.30.30.30.30.30.30.30.30.32.32.32.42.48.47.4

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass

us-gaap:InProcessResearchAndDevelopment


Indefinite
Period End2021-07-022020-07-032019-06-282019-03-292018-06-292017-06-302016-07-012015-07-03
Value8080728.0806962435105
Percentage of IndefiniteLivedIntangibleAssetsExcludingGoodwill0.0100.0100.011.1100.0100.0100.00.0
Percentage of Assets0.30.30.30.00.32.37.40.7
Percentage of Assets us-gaap:InProcessResearchAndDevelopment0.00.00.00.00.00.00.00.0

Intangible Assets Net Excluding Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill


Intangible
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012015-07-03
Value4425195967589411126131115141711191821482404268029563230354538234144446947915034332
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.72.02.33.03.74.45.15.86.57.17.78.49.210.210.811.612.814.115.416.515.32.2

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:FiniteLivedIntangibleAssetsNet


Finite
Period End2021-07-022020-07-032019-06-282018-06-292017-06-302016-07-012015-07-032014-06-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-07-02
Value362861163926003127259933245460565670974679984063677188
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.43.46.28.910.57.92.22.94.34.75.15.35.65.80.80.80.91.2

us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CustomerRelationships


Finite
Period End2021-07-022020-07-032019-06-282018-06-292017-06-302016-07-012015-07-032014-06-272013-06-282012-06-29
Value127193263336400471265182125
Percentage of FiniteLivedIntangibleAssetsNet35.122.416.012.912.818.17.811.213.615.6
Percentage of Assets0.50.81.01.11.31.40.20.30.60.9
Percentage of Assets us-gaap:CustomerRelationships0.00.00.00.00.00.00.00.00.00.0

wdc:ExistingTechnology


Finite
Period End2021-07-022020-07-032019-06-282018-06-292017-06-302016-07-012015-07-032014-06-272013-06-282012-06-292011-07-012010-07-02
Value6639610161795210513761671983164356882
Percentage of FiniteLivedIntangibleAssetsNet18.246.062.069.067.352.950.343.652.254.495.893.2
Percentage of Assets0.31.53.96.17.04.21.11.32.33.10.81.1
Percentage of Assets wdc:ExistingTechnology0.00.00.00.00.00.00.00.00.00.00.00.0

wdc:LeaseholdInterests


Finite
Period End2021-07-022020-07-032019-06-282018-06-292017-06-302016-07-012015-07-032014-06-272013-06-282012-06-29
Value8.0222224242928333541
Percentage of FiniteLivedIntangibleAssetsNet2.22.61.30.90.81.18.47.35.85.1
Percentage of Assets0.00.10.10.10.10.10.20.20.20.3
Percentage of Assets wdc:LeaseholdInterests0.00.00.00.00.00.00.00.00.00.0

wdc:Tradenamesandtrademarks


Finite
Period End2021-07-022020-07-032019-06-282018-06-292017-06-302016-07-01
Value161250338426511600
Percentage of FiniteLivedIntangibleAssetsNet44.529.020.616.416.323.1
Percentage of Assets0.61.01.31.51.71.8
Percentage of Assets wdc:Tradenamesandtrademarks0.00.00.00.00.00.0

Deferred Tax Assets Liabilities Net

us-gaap:DeferredTaxAssetsLiabilitiesNet

us-gaap:DeferredTaxAssetsLiabilitiesNet


Deferred
Period End2021-07-022016-07-012015-07-032014-06-272013-06-282012-06-292011-07-012010-07-02
Value188-88.0304345282334241261
Percentage of DeferredTaxAssetsLiabilitiesNet100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.7-0.32.02.22.02.43.03.6

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-04
Value222232239228230233242243
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.80.90.90.90.90.90.90.9

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-07-02
Value109310371000927877872810751472584580576642634522557594589575553619486659631601551455495473523323240179174200269224203104114185211216215
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 Assets4.24.13.93.63.43.43.12.91.82.22.12.02.22.21.71.82.02.02.01.91.93.34.34.14.03.63.03.23.13.42.11.61.31.21.41.91.61.41.31.32.32.72.82.9

Accounts Payable Current

us-gaap:AccountsPayableCurrent

us-gaap:AccountsPayableCurrent


Accounts
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-07-02
Value1934180719391949194517861736172415671577192520812265213419212066214421852012194618881571180617991881202020712016197119022106206119902037218525452773277488317081545148616281507
Percentage of AccountsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.47.17.67.77.67.06.76.65.95.96.97.27.77.46.46.87.27.46.96.75.710.511.711.812.413.313.712.912.712.413.813.914.214.615.718.019.519.111.320.219.019.020.820.6

Accrued Liabilities Current

us-gaap:AccruedLiabilitiesCurrent

us-gaap:AccruedLiabilitiesCurrent


Accrued
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-07-02
Value1653155214201293129615691559137412961645152613051274101511911271106910731001983995579505528470503496433412455479406480837722774858837364348349250262281
Percentage of AccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.36.15.65.15.16.26.05.24.96.15.54.54.43.54.04.23.63.63.53.43.03.93.33.53.13.33.32.82.73.03.12.73.46.05.25.56.05.84.74.14.33.23.33.8

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-07-02
Value48704501452644294406447144824288381742124350438544564259435344694344430940883919694927813245323132423218328939183845374746204427397332263326369540324535155223542170199521442023
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 Assets18.617.717.717.417.217.517.316.314.515.715.615.315.214.714.614.714.514.614.113.521.118.621.021.221.421.221.725.024.824.430.229.928.323.223.926.128.431.319.927.826.725.427.327.6

Long Term Debt Current

us-gaap:LongTermDebtCurrent

us-gaap:LongTermDebtCurrent


Long
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-07-02
Value25125125128628628628625127627624421317912427425823318112978339203188172156141125125125125230230230230288230230230181163144125119106
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 Assets1.01.01.01.11.11.11.11.01.01.00.90.70.60.40.90.80.80.60.40.31.01.41.21.11.00.90.80.80.80.81.51.61.61.72.11.61.61.62.31.91.81.61.51.4

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityCurrent


Operating
Period End2021-07-022021-04-022021-01-012020-10-02
Value33353837
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0
Percentage of Assets0.10.10.10.1

Long Term Debt

us-gaap:LongTermDebt

us-gaap:LongTermDebt


Long
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012015-07-032014-06-272014-01-092013-12-272013-06-282012-06-292011-07-012010-07-02
Value87258929913393729575962998331021210522105851061411143111721120012051131311315113088130731313316994231224381800180019552185294400
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets33.435.135.736.937.337.738.038.939.939.338.038.838.238.640.443.044.044.445.145.351.715.215.70.011.813.915.43.65.5

Long Term Debt Noncurrent

us-gaap:LongTermDebtNoncurrent

us-gaap:LongTermDebtNoncurrent


Long
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-07-02
Value84748678888290869289934395479961102461030910370109301099311076117771287312918129071294413055136602000206221092156220322502281231323441610166817251783184018981955201350100150200231294
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 Assets32.434.234.835.836.236.636.937.938.938.337.138.137.638.239.542.243.343.844.745.041.613.413.313.814.214.514.914.614.915.310.511.312.312.813.213.413.813.90.61.21.82.62.94.0

Deferred Finance Costs Noncurrent Net

us-gaap:DeferredFinanceCostsNoncurrentNet us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DeferredFinanceCostsNoncurrentNet

wdc:OnePointFiftyPercentSeniorConvertibleNotesDueTwoThousandTwentyFour, us-gaap:ConvertibleDebt


Deferred
Period End2021-07-02
Value15
Percentage of DeferredFinanceCostsNoncurrentNet100.0
Percentage of Assets0.1
Percentage of Assets wdc:OnePointFiftyPercentSeniorConvertibleNotesDueTwoThousandTwentyFour us-gaap:ConvertibleDebt0.0

Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent


Pension
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-06-282019-03-292018-12-282018-06-29
Value131152159152150656771545659
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.50.60.60.60.60.30.30.30.20.20.2

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent


Other
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-07-02
Value206722812315231124162452245224652340217823072015225523692438110411801201121112611108557602585564529518490499473473458445495516542550546282290310328309302
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 Assets7.99.09.19.19.49.69.59.48.98.18.37.07.78.28.23.64.04.14.24.33.43.73.93.83.73.53.43.13.23.13.13.13.23.63.73.83.93.83.63.43.84.23.94.1

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent


Operating
Period End2021-07-022021-04-022021-01-012020-10-02
Value204211216206
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0
Percentage of Assets0.80.80.80.8

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2021-07-022021-04-022021-01-012020-10-02
Value34333329
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0100.0100.0100.0
Percentage of Assets0.10.10.10.1

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2021-07-022021-04-022021-01-012020-10-02
Value33333329
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0100.0100.0100.0
Percentage of Assets0.10.10.10.1

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2021-07-022021-04-022021-01-012020-10-02
Value31313127
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0100.0100.0100.0
Percentage of Assets0.10.10.10.1

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2021-07-02
Value30
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 End2021-07-02
Value116
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0
Percentage of Assets0.4

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-04
Value237246254243245248258257
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.91.01.01.01.01.01.01.0

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2021-07-022021-04-022021-01-012020-10-02
Value284296309299
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0100.0100.0100.0
Percentage of Assets1.11.21.21.2

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2021-07-022021-04-022021-01-012020-10-02
Value47505556
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0100.0100.0100.0
Percentage of Assets0.20.20.20.2

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-07-022009-07-032008-06-27
Value10721994998299576955192439379956699671021410912113751153111300112721205911418110311073210775111459609955793369219922690828963884287688579825378938423824780377669741659235723548853165159470931922696
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets41.039.238.537.737.236.236.336.437.838.039.139.639.439.037.839.538.237.537.037.133.964.361.861.260.760.860.057.357.057.256.155.756.260.559.256.754.051.175.967.667.667.865.864.30.00.0

us-gaap:StockholdersEquity us-gaap:CumulativeEffectPeriodOfAdoption

srt:CumulativeEffectPeriodOfAdoptionAdjustment


Stockholders
Period End2020-07-032019-06-282018-06-292017-06-30
Value-7.0-5.05651
Percentage of StockholdersEquity-0.1-0.10.50.4
Percentage of Assets-0.0-0.00.20.2
Percentage of Assets srt:CumulativeEffectPeriodOfAdoptionAdjustment0.00.00.00.0

us-gaap:StockholdersEquity us-gaap:CumulativeEffectPeriodOfAdoption, us-gaap:StatementEquityComponents

srt:CumulativeEffectPeriodOfAdoptionAdjustment, us-gaap:RetainedEarnings


Stockholders
Period End2020-07-032019-06-282018-06-302018-06-292017-06-30
Value-7.0-5.0565670
Percentage of StockholdersEquity-0.1-0.10.00.50.6
Percentage of Assets-0.0-0.00.00.20.2
Percentage of Assets srt:CumulativeEffectPeriodOfAdoptionAdjustment us-gaap:RetainedEarnings0.00.00.00.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLoss


Stockholders
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-06-302016-07-01
Value-35.0-54.0-56.0-57.0-58.0-50.0-51.0-52.0-53.0-18.0-18.0-19.0-19.0-17.0-18.0-18.0-45.0
Percentage of StockholdersEquity-0.3-0.5-0.6-0.6-0.6-0.5-0.5-0.5-0.5-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.4
Percentage of Assets-0.1-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Stockholders
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-06-292017-06-30
Value-124.0-125.0-58.0-74.0-97.0-117.0-54.0-46.0-19.0-7.0111.0-1.0
Percentage of StockholdersEquity-1.2-1.3-0.6-0.8-1.0-1.3-0.6-0.5-0.2-0.10.10.0-0.0
Percentage of Assets-0.5-0.5-0.2-0.3-0.4-0.5-0.2-0.2-0.1-0.00.00.0-0.0
Percentage of Assets us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302016-07-012015-07-032014-06-272013-06-282012-06-292011-07-012010-07-022009-07-032008-06-27
Value-197.0-210.0-50.0-101.0-157.0-183.0-110.0-90.0-68.0-55.0-35.0-76.0-39.046-46.0-59.0-58.0103-20.012-35.0-15.0-5.0112.0-12.0
Percentage of StockholdersEquity-1.8-2.1-0.5-1.1-1.6-2.0-1.2-0.9-0.7-0.5-0.3-0.7-0.30.4-0.4-0.5-0.50.9-0.20.1-0.4-0.2-0.10.20.1-0.4
Percentage of Assets-0.8-0.8-0.2-0.4-0.6-0.7-0.4-0.3-0.3-0.2-0.1-0.3-0.10.2-0.2-0.2-0.20.3-0.10.1-0.2-0.1-0.10.20.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedTranslationAdjustment


Stockholders
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-06-302016-07-01
Value-38.0-31.06430-2.0-16.0-5.08.04.0-30.0-28.0-58.0-21.037-37.0-39.074
Percentage of StockholdersEquity-0.4-0.30.70.3-0.0-0.2-0.10.10.0-0.3-0.3-0.5-0.20.3-0.3-0.30.7
Percentage of Assets-0.1-0.10.30.1-0.0-0.1-0.00.00.0-0.1-0.1-0.2-0.10.1-0.1-0.10.2
Percentage of Assets us-gaap:AccumulatedTranslationAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302016-07-012015-07-032014-06-272013-06-282012-06-292011-07-012010-07-022009-07-032008-06-27
Value360836033546353737173743373137283851389140624085425442774410439645064429242823312188222310911022896906
Percentage of StockholdersEquity33.736.236.136.938.940.539.839.038.638.137.235.936.937.839.136.539.539.726.326.427.729.019.921.728.133.6
Percentage of Assets13.814.213.913.914.514.714.414.214.614.514.514.214.614.714.814.415.113.516.015.015.615.613.413.90.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302016-07-012015-07-032014-06-272013-06-282012-06-292011-07-012010-07-022009-07-032008-06-27
Value3.03.03.03.03.03.03.03.03.03.03.03.03.03.03.03.03.03.03.03.03.03.02.02.02.02.0
Percentage of StockholdersEquity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.1
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302016-07-012015-07-032014-06-272013-06-282012-06-292011-07-012010-07-022009-07-032008-06-27
Value75396917672066586725657867177012744977998532917287578155825092298633884891078066674960124400367422921822
Percentage of StockholdersEquity70.369.568.469.570.471.271.673.374.776.478.280.675.972.273.276.575.679.498.891.285.578.480.278.071.867.6
Percentage of Assets28.827.226.326.226.225.826.026.728.229.030.532.030.028.127.630.328.926.960.052.048.142.354.250.10.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


Stockholders
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302016-07-012015-07-032014-06-272013-06-282012-06-292011-07-012010-07-022009-07-032008-06-27
Value-232.0-364.0-390.0-521.0-737.0-898.0962-1087.01268-1424.0-1650.0-1809.01444-1181.0-1345.0-1510.0-1666.0-2238.0-2299.0-1570.0-1012.0-554.00.00.00.0-22.0
Percentage of StockholdersEquity-2.2-3.7-4.0-5.4-7.7-9.710.3-11.412.7-13.9-15.1-15.912.5-10.5-11.9-12.5-14.6-20.1-24.9-17.8-12.8-7.20.00.00.0-0.8
Percentage of Assets-0.9-1.4-1.5-2.1-2.9-3.53.7-4.14.8-5.3-5.9-6.34.9-4.1-4.5-5.0-5.6-6.8-15.1-10.1-7.2-3.90.00.00.00.0
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Additional Paid In Capital

us-gaap:AdditionalPaidInCapital

us-gaap:AdditionalPaidInCapital


Additional
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-07-02
Value36083603354635373717374337313728385138914062408542544277441043964506447745744492442924542421240724282369231822852331231422622205218822322224222422232150115111061091106410401022
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 Assets13.814.213.913.914.514.714.414.214.614.514.514.214.614.714.814.415.115.215.815.513.516.415.715.816.015.615.314.615.015.114.814.915.616.016.015.715.614.814.713.113.413.613.313.9

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-07-02
Value75396917672066586725657867177012744977998532917287578155825092298633850784118329884893639407927391079004873883948066784575417183674970736744647060125267478446394400424240963674
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 Assets28.827.226.326.226.225.826.026.728.229.030.532.030.028.127.630.328.928.929.028.726.962.660.860.860.059.357.753.652.051.249.348.548.150.848.445.742.336.361.354.854.254.152.250.1

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-07-02
Value-197.0-210.0-50.0-101.0-157.0-183.0-110.0-90.0-68.0-55.0-35.0-76.0-39.046-46.0-59.0-58.0-96.0-197.011510332-8.0-44.0-20.0-3.0-32.0-14.012-4.0-49.0-19.0-35.0208.014-15.0-4.0-14.0-24.0-5.08.02111
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-0.8-0.8-0.2-0.4-0.6-0.7-0.4-0.3-0.3-0.2-0.1-0.3-0.10.2-0.2-0.2-0.2-0.3-0.70.40.30.2-0.1-0.3-0.1-0.0-0.2-0.10.1-0.0-0.3-0.1-0.20.10.10.1-0.1-0.0-0.2-0.3-0.10.10.30.2

Treasury Stock Value

us-gaap:TreasuryStockValue

us-gaap:TreasuryStockValue


Treasury
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-29
Value23236439052173789896210871268142416501809144411811345151016661860205921642238224322662303229921471945170515701390117811191012905732674554
Percentage of TreasuryStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.91.41.52.12.93.53.74.14.85.35.96.34.94.14.55.05.66.37.17.56.815.014.715.115.114.112.810.910.19.17.77.67.26.55.34.83.9

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

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue


Adjustments
Period End2021-04-022021-01-012020-10-022020-04-032020-01-032019-10-042019-03-292018-12-282018-09-282018-03-302017-12-292017-09-29
Value8380767877778479791039997
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-04-022021-01-012020-10-022020-04-032020-01-032019-10-042019-03-292018-12-282018-09-282018-03-302017-12-292017-09-29
Value8380767877778479791039997
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-12-312010-10-012010-07-02
Value994425363172142257253169204469705863102711821133939998106044035559854548868424382771269872668068472777293611291208378352447505390363
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax20.210.89.34.03.46.16.34.75.611.114.016.920.522.221.919.421.521.79.310.218.016.215.319.36.221.019.518.818.317.918.319.320.223.223.739.818.913.118.620.416.315.2

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-12-312010-10-012010-07-02
Value-203.0-270.0-166.0863212634-230.0-317.0-466.0-259.0-249.0-399.0-629.0-378.0-190.0-130.0-114.0-202.0-9597.0-181.0-273.0-241.0-458.0-128.0-126.0-180.0-631.0-765.0-360.0-136.0-164.0-279.0-391.0-233.0-3681.0-119.0-134.0-168.0-250.0-200.0-438.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-4.1-6.8-4.22.00.83.00.8-6.3-8.6-11.0-5.2-4.9-8.0-11.8-7.3-3.9-2.8-2.3-4.3-274.6-5.5-8.1-7.6-12.9-3.3-3.2-4.9-17.0-19.3-9.5-3.6-4.4-7.3-9.7-4.9-121.3-6.0-5.0-7.0-10.1-8.3-18.4

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-12-312010-10-012010-07-02
Value-155.0-197.0-253.0-154.0-369.0-493.0-492.0-172.0-219.0-631.0-807.0-563.0-1946.0-1167.0-224.0-49.0-160.0-74.0-4312.011505-135.0-215.0-35.0-316.0-372.0-346.0-297.0-153.0-175.0240-299.0-319.0-214.0-216.0-1070.01932-10.0-33.0-19.0-3.0-66.0-17.0
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-3.2-5.0-6.5-3.6-8.8-11.6-12.2-4.7-6.0-14.9-16.1-11.0-38.8-21.9-4.3-1.0-3.4-1.5-91.5329.2-4.1-6.4-1.1-8.9-9.6-8.8-8.1-4.1-4.46.3-8.0-8.5-5.6-5.4-22.563.7-0.5-1.2-0.8-0.1-2.8-0.7

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

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-29
Value636-39.0-53.0105-194.0-111.0-207.0-227.0-331.0-633.0-359.042
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.9-1.0-1.42.4-4.6-2.6-5.1-6.2-9.0-15.0-7.10.8

Deferred Income Tax Expense Benefit

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:DeferredIncomeTaxExpenseBenefit


Deferred
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-07-02
Value-201.0-16.011-29.0-11.0-15.0-27.0121-28.080201-12.0-207.0-165.036-49.0-56.0-30.0147-132.022-7.019-22.02110.053-27.0-29.0-10.0-24.0-9.080-12.0-8.0249.09.01629
Percentage of DeferredIncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Accounts Receivable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInAccountsReceivable


Increase
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-12-312010-10-012010-07-02
Value353-264.0-282.0401187344243-18.0-493.0-504.022186-41.0-49.0148-2.0-51.0-22.0562-188.03484-164.0-185.0-35.0-74.0187-157.0170-25.081-32.0-220.0-413.0-40.0337-609.015036-75.068-1.0
Percentage of IncreaseDecreaseInAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Inventories

us-gaap:IncreaseDecreaseInInventories

us-gaap:IncreaseDecreaseInInventories


Increase
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-12-312010-10-012010-07-02
Value-67.0220285-21.0-24.0-160.05.0-157.013308175274389-21.0-44.087169-24.0-28.0-168.0-22.0-105.0474010.046-50.0-16.04521-9.0-6.0-101.094-71.094-179.0683.07.01.017
Percentage of IncreaseDecreaseInInventories100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Other Operating Capital Net

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet


Increase
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-12-312010-10-012010-07-02
Value-112.01661396.08293176-64.073-192.04044943-1557.0132-92.0-71.0-91.079-62.0-1.01.0-35.013-99.02418-20.09.023-34.09.0-21.062-46.0-37.020-7.057-8.017-37.0
Percentage of IncreaseDecreaseInOtherOperatingCapitalNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-12-312010-10-012010-07-02
Value994425363172142257253169204469705863102711821133939998106044035559854548868424382771269872668068472777293611291208378352447505390363
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax20.210.89.34.03.46.16.34.75.611.114.016.920.522.221.919.421.521.79.310.218.016.215.319.36.221.019.518.818.317.918.319.320.223.223.739.818.913.118.620.416.315.2

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-012010-07-022010-04-022010-01-012009-10-02
Value62219762-60.014817-139.0-276.0-197.0-581.0-487.051175661-823.0681280248235-366.0-366.074251283220384438423317375430495-265.0391335519745483145239158146225197265400429288
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.64.81.6-1.53.50.4-3.3-6.8-5.4-15.8-11.510.214.81.2-15.413.15.85.34.8-7.8-10.52.67.68.46.910.811.310.78.710.110.813.0-7.110.48.812.915.715.97.38.96.66.59.18.211.115.116.413.0

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-04-022021-01-012020-10-022020-04-032020-01-032019-10-042019-03-292018-12-282018-09-282018-03-302017-12-292017-09-29
Value19762-60.017-139.0-276.0-581.0-487.051161-823.0681
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.81.6-1.50.4-3.3-6.8-15.8-11.510.21.2-15.413.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.0

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-12-312010-10-012010-07-02
Value798076767877776484797978103999791102102997037424537413931414242303632393120241715181917
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-12-312010-10-012010-07-02
Value-203.0-270.0-166.0863212634-230.0-317.0-466.0-259.0-249.0-399.0-629.0-378.0-190.0-130.0-114.0-202.0-9597.0-181.0-273.0-241.0-458.0-128.0-126.0-180.0-631.0-765.0-360.0-136.0-164.0-279.0-391.0-233.0-3681.0-119.0-134.0-168.0-250.0-200.0-438.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-4.1-6.8-4.22.00.83.00.8-6.3-8.6-11.0-5.2-4.9-8.0-11.8-7.3-3.9-2.8-2.3-4.3-274.6-5.5-8.1-7.6-12.9-3.3-3.2-4.9-17.0-19.3-9.5-3.6-4.4-7.3-9.7-4.9-121.3-6.0-5.0-7.0-10.1-8.3-18.4

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


Payments
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-12-312010-10-012010-07-02
Value326239337215127160145154222223277192227256160125123146184151149151156150146160161161170136136188246382324140119134153250200185
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Payments To Acquire Investments

us-gaap:PaymentsToAcquireInvestments

us-gaap:PaymentsToAcquireInvestments


Payments
Period End2020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-02
Value0.00.00.00.010.0362211239.019387.03515584170172236
Percentage of PaymentsToAcquireInvestments0.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-12-312010-10-012010-07-02
Value-155.0-197.0-253.0-154.0-369.0-493.0-492.0-172.0-219.0-631.0-807.0-563.0-1946.0-1167.0-224.0-49.0-160.0-74.0-4312.011505-135.0-215.0-35.0-316.0-372.0-346.0-297.0-153.0-175.0240-299.0-319.0-214.0-216.0-1070.01932-10.0-33.0-19.0-3.0-66.0-17.0
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-3.2-5.0-6.5-3.6-8.8-11.6-12.2-4.7-6.0-14.9-16.1-11.0-38.8-21.9-4.3-1.0-3.4-1.5-91.5329.2-4.1-6.4-1.1-8.9-9.6-8.8-8.1-4.1-4.46.3-8.0-8.5-5.6-5.4-22.563.7-0.5-1.2-0.8-0.1-2.8-0.7

Repayments Of Long Term Debt

us-gaap:RepaymentsOfLongTermDebt

us-gaap:RepaymentsOfLongTermDebt


Repayments
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-12-312010-10-012010-07-02
Value2132482136321238831968383738249310467405262-482.0392512824222043231313132313123715758571150.058558287323131252525
Percentage of RepaymentsOfLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfLongTermDebt us-gaap:DebtInstrument

wdc:U.S.TermLoanB4


Repayments
Period End2021-04-022021-01-012020-10-022020-01-032019-10-04
Value150150150325250
Percentage of RepaymentsOfLongTermDebt0.060.570.483.878.4

Payments Of Dividends

us-gaap:PaymentsOfDividends

us-gaap:PaymentsOfDividends


Payments
Period End2020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012015-10-152016-01-012015-10-022015-04-162015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-09-28
Value15014914914714614614414815014814814714614414214211711611611511611693939470715959600.00.0
Percentage of PaymentsOfDividends100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0

Payments For Repurchase Of Common Stock

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock


Payments
Period End2020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-09-28
Value0.00.00.00.00.00.00.05634361550.00.00.00.00.00.00.00.060198240309223272244150150235243218
Percentage of PaymentsForRepurchaseOfCommonStock0.00.00.00.00.00.00.0100.0100.0100.00.00.00.00.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Debt Instrument Interest Rate Stated Percentage

us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument

us-gaap:DebtInstrumentInterestRateStatedPercentage

wdc:FourPointSeventyFivePercentSeniorUnsecuredNotesDueTwoThousandTwentySix


Debt
Period End2021-07-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-30
Value4.750.04750.04750.04750.04750.04750.04750.04750.04750.04750.0475
Percentage of DebtInstrumentInterestRateStatedPercentage100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.00.00.00.00.00.00.00.00.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations wdc:FourPointSeventyFivePercentSeniorUnsecuredNotesDueTwoThousandTwentySix0.00.00.00.00.00.00.00.00.00.00.0

Effective Income Tax Rate Continuing Operations

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:EffectiveIncomeTaxRateContinuingOperations


Effective
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-02
Value-29.021.027.0-1900.0-3.710.63-2.48-0.16-5.61-0.227.010.12-0.381.482.060.04-0.190.180.27-0.35-0.630.08-0.030.1
Percentage of EffectiveIncomeTaxRateContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber


Share
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-052016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-012010-07-022009-07-032008-06-27
Value1.51.61.82.52.72.83.03.13.94.14.34.54.85.16.26.87.48.69.7109.09.07.07.57.86.87.78.810.0101112131113151615151212101011119.4118.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice


Share
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-052016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-012010-07-022009-07-032008-06-27
Value72.8472.2669.7569.2169.1668.9767.8567.7565.7265.0764.7365.3864.2363.2960.3959.0658.1456.6654.8654.355.7455.7461.6859.5458.5850.048.4847.0145.1637.0335.3234.9936.7729.4727.9527.1426.5221.8920.4924.3424.222.4922.3522.2121.8220.6117.014.92
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod

wdc:RestrictedStockUnitsAndPerformanceShareUnits


Share
Period End2021-07-022021-01-012020-10-02
Value600000.0200000.07900000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod100.0100.0100.0

Deferred Tax Liabilities

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxLiabilities


Deferred
Period End2020-07-032019-06-282017-06-302016-07-012012-06-292011-07-012010-07-02
Value451381538820912669
Percentage of DeferredTaxLiabilities100.0100.0100.0100.0100.0100.0100.0

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

us-gaap:UnrecognizedTaxBenefits


Unrecognized
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032019-06-282018-06-292017-06-302016-07-052016-07-012015-07-032014-06-272013-06-282012-06-292011-07-012010-07-02
Value748750715711717695551522491491350300240280245230
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Valuation Allowance

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:DeferredTaxAssetsValuationAllowance


Deferred
Period End2021-07-022020-07-032019-06-282018-06-292017-06-302016-07-012015-07-032014-06-272013-06-282012-06-29
Value55862461961451829416612813340
Percentage of DeferredTaxAssetsValuationAllowance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllocatedShareBasedCompensationExpenseNetOfTax

us-gaap:AllocatedShareBasedCompensationExpenseNetOfTax


Allocated
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-02
Value677271656369666553706568638689736676737453312732
Percentage of AllocatedShareBasedCompensationExpenseNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AmortizationOfFinancingCostsAndDiscounts

us-gaap:AmortizationOfFinancingCostsAndDiscounts


Amortization
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-02
Value10.010.010.010.010.010.010.010.09.010.09.0131851310.010.01711247331.01.0
Percentage of AmortizationOfFinancingCostsAndDiscounts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BasicEarningsPerShareProForma

us-gaap:BasicEarningsPerShareProForma


Basic
Period End2020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-02
Value0.50.06-0.47-0.93-0.67-1.99-1.681.752.540.2-2.782.310.970.860.82-1.28-1.610.321.081.23
Percentage of BasicEarningsPerShareProForma100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonStockDividendsPerShareDeclared

us-gaap:CommonStockDividendsPerShareDeclared


Common
Period End2020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-01-272018-03-302017-11-012017-12-292017-08-022017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-02
Value00.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.5
Percentage of CommonStockDividendsPerShareDeclared0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:ConcentrationRiskPercentage1

wdc:TopTenCustomers, us-gaap:RevenueFromContractWithCustomer, us-gaap:CustomerConcentrationRisk


Concentration
Period End2021-04-022021-01-012020-10-022020-04-032020-01-032019-10-042019-03-292018-12-282018-09-282018-03-302017-12-29
Value42.043.044.00.440.440.430.410.470.480.440.42
Percentage of ConcentrationRiskPercentage1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wdc:UnisVenture, us-gaap:AccountsReceivable, us-gaap:ProductConcentrationRisk


Concentration
Period End2020-10-02
Value6.0
Percentage of ConcentrationRiskPercentage113.6

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

wdc:UnisVenture, us-gaap:RevenueFromContractWithCustomer, us-gaap:ProductConcentrationRisk


Concentration
Period End2021-04-022021-01-012020-10-022020-04-032020-01-032019-10-042019-03-292018-12-282018-09-28
Value3.03.02.00.010.010.010.010.010.01
Percentage of ConcentrationRiskPercentage17.17.04.52.32.32.32.42.12.1

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets


Defined
Period End2021-01-012020-10-02
Value02.5
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets0.0100.0

us-gaap:DepreciationAndAmortization

us-gaap:DepreciationAndAmortization


Depreciation
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-12-312010-10-012010-07-02
Value251336374377384399406416444472480489499535533546560514508420252236250285290289308307317312302309309313339188140158150151150134
Percentage of DepreciationAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Effect
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-28
Value03000000.03000000.01000000.01000000.0-1000000.0-2000000.06000000.01000000.0-5000000.02000000.0
Percentage of EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate

us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate


Effective
Period End2020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-29
Value0.280.210.210.2100.210.210.21000.35
Percentage of EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate100.0100.0100.0100.00.0100.0100.0100.00.00.0100.0

us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense

us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense


Employee
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-28
Value12119.011139.0111211141411151710.02425262925171110.010.0-1.08.07.05.05.06.06.05.06.06.06.07.0
Percentage of EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnDispositionOfAssets1

us-gaap:GainLossOnDispositionOfAssets1


Gain
Period End2020-07-032020-04-032020-01-032019-06-282019-03-292018-12-28
Value0.00.0170.00.00.0
Percentage of GainLossOnDispositionOfAssets10.00.0100.00.00.00.0

us-gaap:GainLossOnDispositionOfAssets1 us-gaap:RestructuringPlan

wdc:BusinessRealignmentActivities


Gain
Period End2021-07-022021-04-022020-07-032020-04-032020-01-032019-06-282019-03-292018-12-28
Value5.0700.00.0170.00.00.0
Percentage of GainLossOnDispositionOfAssets10.00.00.00.0100.00.00.00.0

us-gaap:GainLossOnSaleOfPropertyPlantEquipment

us-gaap:GainLossOnSaleOfPropertyPlantEquipment


Gain
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-29
Value5.00.0-1.0-2.0-3.014-2.0-35.0-3.01.0-2.0-5.0-4.0-11.0-1.0-6.0-2.0-6.0-4.0-9.0-6.00.0-31.02.08.04.0-73.062-29.00.00.00.0
Percentage of GainLossOnSaleOfPropertyPlantEquipment100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:GainOnBusinessInterruptionInsuranceRecovery

us-gaap:GainOnBusinessInterruptionInsuranceRecovery


Gain
Period End2021-01-012020-10-02
Value4530
Percentage of GainOnBusinessInterruptionInsuranceRecovery100.0100.0

us-gaap:IncomeTaxExaminationEstimateOfPossibleLoss us-gaap:IncomeTaxAuthorityName, us-gaap:TaxPeriod

us-gaap:IncomeTaxExaminationEstimateOfPossibleLoss

us-gaap:InternalRevenueServiceIRS, wdc:TaxYear2008Through2009


Income
Period End2020-05-042020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-06-28
Value3400.00.00.05160.00.0516
Percentage of IncomeTaxExaminationEstimateOfPossibleLoss0.0100.00.00.0100.00.00.0100.0

us-gaap:InternalRevenueServiceIRS, wdc:TaxYears2010Through2012


Income
Period End2020-05-312020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-10
Value3400.00.00.05490.00.0549
Percentage of IncomeTaxExaminationEstimateOfPossibleLoss0.00.00.00.0106.40.00.00.0

us-gaap:IncomeTaxExaminationPenaltiesExpense us-gaap:IncomeTaxAuthorityName, us-gaap:TaxPeriod

us-gaap:IncomeTaxExaminationPenaltiesExpense

us-gaap:InternalRevenueServiceIRS, wdc:TaxYears2013Through2015


Income
Period End2021-03-31
Value109
Percentage of IncomeTaxExaminationPenaltiesExpense100.0

us-gaap:IncreaseDecreaseInAccountsPayableRelatedParties

us-gaap:IncreaseDecreaseInAccountsPayableRelatedParties


Increase
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-02
Value1.0-10.0-3.09.033-143.0176192.02427-23.03224201319-15.021-115.00.00.0
Percentage of IncreaseDecreaseInAccountsPayableRelatedParties100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0

us-gaap:IncreaseDecreaseInAccountsPayableTrade

us-gaap:IncreaseDecreaseInAccountsPayableTrade


Increase
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-12-312010-10-012010-07-02
Value150-29.09961-39.015155-39.0-293.0-179.0-77.026235-130.0-146.0-96.013981992.013-71.0-156.0-86.0454974-199.07122-77.0-82.0-285.0-67.0-95.0902-832.0157107-5.0162-150.0
Percentage of IncreaseDecreaseInAccountsPayableTrade100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccruedLiabilities

us-gaap:IncreaseDecreaseInAccruedLiabilities


Increase
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-12-312010-10-012010-07-02
Value101101-23.0-147.04.0227100-415.01192203472-184.0-69.016471101-69.0128-35.01718-48.0135416-37.01716-52.0-5.052-56.0-113.0-101.0-25.015-17.09739-52.048
Percentage of IncreaseDecreaseInAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInEmployeeRelatedLiabilities

us-gaap:IncreaseDecreaseInEmployeeRelatedLiabilities


Increase
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-09-28
Value140252637-104.011675-57.056-154.020-28.0-15.055-38.025-104.034160-26.0-21.06.0-71.0-54.013-22.051-47.068-65.074-13.0-41.0
Percentage of IncreaseDecreaseInEmployeeRelatedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements


Incremental
Period End2021-07-022021-04-022021-01-012020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-02
Value1.07.02.00.04.00.00.00.00.00.06.010.010.00.0110.010.08.00.01.01.02.03.0
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements100.0100.0100.00.0100.00.00.00.00.00.0100.0100.0100.00.0100.00.0100.0100.00.0100.0100.0100.0100.0

us-gaap:InvestmentIncomeInterest

us-gaap:InvestmentIncomeInterest


Investment
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-012010-07-022010-04-022010-01-01
Value1.02.02.02.02.06.08.01214131515141614169.07.05.05.09.06.06.05.04.03.04.04.07.04.03.03.03.03.03.02.03.03.03.03.03.02.02.02.01.01.01.0
Percentage of InvestmentIncomeInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OciBeforeReclassificationsBeforeTaxAttributableToParent

us-gaap:OciBeforeReclassificationsBeforeTaxAttributableToParent


Oci
Period End2021-07-02
Value97
Percentage of OciBeforeReclassificationsBeforeTaxAttributableToParent100.0

us-gaap:OciBeforeReclassificationsBeforeTaxAttributableToParent us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLoss


Oci
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-30
Value231.01.0-5.01.02.01.0-40.00.01.00.0-3.01.0
Percentage of OciBeforeReclassificationsBeforeTaxAttributableToParent23.70.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Oci
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-29
Value81251811-78.06.0-26.0-22.0-21.0
Percentage of OciBeforeReclassificationsBeforeTaxAttributableToParent83.50.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Oci
Period End2020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-30
Value5120-88.0-7.0-20.0-26.0-23.033-43.0-79.0104
Percentage of OciBeforeReclassificationsBeforeTaxAttributableToParent0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedTranslationAdjustment


Oci
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-30
Value-7.0343214-11.0-15.05.036-2.031-37.0-60.076
Percentage of OciBeforeReclassificationsBeforeTaxAttributableToParent-7.20.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeaseCost


Operating
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-04
Value1312121313121812
Percentage of OperatingLeaseCost100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeasePayments

us-gaap:OperatingLeasePayments


Operating
Period End2021-07-022021-04-022021-01-012020-10-022020-04-032020-01-032019-10-04
Value13121412121316
Percentage of OperatingLeasePayments100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax


Other
Period End2021-04-022021-01-012020-10-022020-04-032020-01-032019-10-042019-03-292018-12-282018-09-282018-03-302017-12-292017-09-292014-06-272014-03-282013-12-272013-06-282013-03-292012-12-282012-03-30
Value-95.03432-12.0-13.04.0-1.029-37.0746.0-4.00.00.00.00.00.0-4.0-6.0
Percentage of OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.0100.0100.0

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-04-022021-01-012020-10-022020-04-032020-01-032019-10-042019-03-292018-12-282018-09-282018-03-302017-12-292017-09-29
Value-95.03432-12.0-13.04.0-1.029-37.0746.0-4.0
Percentage of OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossBeforeTax

us-gaap:OtherComprehensiveIncomeLossBeforeTax


Other
Period End2020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-02
Value31-86.0-19.0-27.0-25.0-26.039-38.0-87.09516-1.048104-321.018483936-24.0
Percentage of OtherComprehensiveIncomeLossBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent


Other
Period End2021-04-022021-01-012020-10-022020-04-032020-01-032019-10-04
Value-177.05563-86.0-19.0-27.0
Percentage of OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent


Other
Period End2021-04-022021-01-012020-10-022020-04-032020-01-032019-10-04
Value-67.01623-62.0-8.0-27.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-04-022021-01-012020-10-022020-04-032020-01-032019-10-04
Value-67.01623-62.0-8.0-27.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax


Other
Period End2021-07-022021-04-02
Value87-13.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax100.0100.0

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax


Other
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-02
Value-7.0-95.0343214-11.0-15.05.036-2.031-37.0-60.0766.0-4.0-4.058-186.017740.00.00.0
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent


Other
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-04
Value13-160.0515626-73.0-20.0-22.0
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLoss


Other
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-30
Value191.01.0-8.01.01.01.0-35.00.01.00.0-2.01.0
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent146.22.01.8-30.8-1.4-5.0-4.50.00.00.00.00.00.0

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Other
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-29
Value1.0162320-63.0-8.0-27.0-12.0-18.0
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent7.731.441.176.986.340.0122.70.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-30
Value5626-73.0-20.0-22.0-13.0-20.041-37.0-85.092
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.00.00.00.00.00.00.0

us-gaap:AccumulatedTranslationAdjustment


Other
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-30
Value-7.0343214-11.0-13.04.034-2.030-37.0-58.074
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent-53.866.757.153.815.165.0-18.20.00.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax


Other
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-02
Value-23.0-2.0-1.0-1.05.0-1.0-2.0-1.0400.0-1.00.03.0-1.00.00.0-32.0-1.0-1.0-5.0730.00.00.0
Percentage of OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.0100.0100.00.00.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax


Other
Period End2021-04-022021-01-012020-10-022020-04-032020-01-032019-10-042018-12-282018-03-302014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-28
Value-2.0-1.0-1.0-1.0-1.0-1.0-1.0-1.04.00.00.00.0-7.0-6.00.0-1.0
Percentage of OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.0100.00.0100.0

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-04-022021-01-012020-10-022020-04-032020-01-032019-10-042018-12-282018-03-30
Value-2.0-1.0-1.0-1.0-1.0-1.0-1.0-1.0
Percentage of OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossTax

us-gaap:OtherComprehensiveIncomeLossTax


Other
Period End2020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-02
Value5.0-13.01.0-5.0-12.0-6.0-2.0-1.0-2.03.03.00.010.03.0-9.06.0-23.00.00.00.0
Percentage of OtherComprehensiveIncomeLossTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossTaxPortionAttributableToParent1

us-gaap:OtherComprehensiveIncomeLossTaxPortionAttributableToParent1


Other
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-04
Value4.0-17.04.07.05.0-13.01.0-5.0
Percentage of OtherComprehensiveIncomeLossTaxPortionAttributableToParent1100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossTaxPortionAttributableToParent1 us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLoss


Other
Period End2020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-30
Value3.00.01.00.0-5.00.00.00.0-1.00.0
Percentage of OtherComprehensiveIncomeLossTaxPortionAttributableToParent160.0-0.0100.0-0.00.00.00.00.00.00.0

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Other
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-29
Value0.04.07.02.0-13.02.0-6.0-9.0-6.0
Percentage of OtherComprehensiveIncomeLossTaxPortionAttributableToParent10.0100.0100.040.0100.0200.0120.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-30
Value7.05.0-13.01.0-5.0-12.0-6.0-2.0-1.0-2.03.0
Percentage of OtherComprehensiveIncomeLossTaxPortionAttributableToParent1100.0100.0100.0100.0100.00.00.00.00.00.00.0

us-gaap:AccumulatedTranslationAdjustment


Other
Period End2020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-30
Value0.00.0-2.01.02.00.01.00.0-2.02.0
Percentage of OtherComprehensiveIncomeLossTaxPortionAttributableToParent10.0-0.0-200.0-20.00.00.00.00.00.00.0

us-gaap:OtherOperatingActivitiesCashFlowStatement

us-gaap:OtherOperatingActivitiesCashFlowStatement


Other
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032014-06-272013-06-28
Value20-12.0-6.014121.0-21.0-27.0-18.01720-4.0-31.05.0113616411.0110.00.00.0-12.00.0
Percentage of OtherOperatingActivitiesCashFlowStatement100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.00.0

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsForProceedsFromOtherInvestingActivities


Payments
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-09-28
Value1.0-6.0-1.03.02.0-6.0-15.0-2.03.010.09.012-11.04.0-23.0119.0111.0532.010.01.010.0-28.0120.00.035-39.0-17.02.00.0
Percentage of PaymentsForProceedsFromOtherInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.00.0

us-gaap:PaymentsForRestructuring us-gaap:RestructuringCostAndReserve, us-gaap:RestructuringPlan

us-gaap:PaymentsForRestructuring

us-gaap:ContractTermination, wdc:BusinessRealignmentActivities


Payments
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-30
Value0.01.02.02.01.03.08.02.03.01.04.00.02.03.01.00.01.01.00.0
Percentage of PaymentsForRestructuring0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.00.0

us-gaap:ContractTermination, wdc:ClosureofForeignManufacturingFacilities


Payments
Period End2020-07-032020-04-032020-01-032019-10-042019-06-282019-03-29
Value0.00.01.03.03.02.0
Percentage of PaymentsForRestructuring0.00.033.337.5150.066.7

us-gaap:OneTimeTerminationBenefits, wdc:BusinessRealignmentActivities


Payments
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-30
Value2.08.020234.01916494122135.010.010.04.012112922
Percentage of PaymentsForRestructuring0.0800.01000.01150.0400.0633.3200.02450.01366.72200.0325.00.0500.0333.3400.00.01100.02900.00.0

us-gaap:OneTimeTerminationBenefits, wdc:ClosureofForeignManufacturingFacilities


Payments
Period End2020-07-032020-04-032020-01-032019-10-042019-06-282019-03-29
Value0.05.03.018306.0
Percentage of PaymentsForRestructuring0.0500.0100.0225.01500.0200.0

us-gaap:PaymentsForRestructuring us-gaap:RestructuringPlan

wdc:BusinessRealignmentActivities


Payments
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-30
Value2.09.022255.02224514423175.012135.012123022
Percentage of PaymentsForRestructuring0.0900.01100.01250.0500.0733.3300.02550.01466.72300.0425.00.0600.0433.3500.00.01200.03000.00.0

wdc:ClosureofForeignManufacturingFacilities


Payments
Period End2020-07-032020-04-032020-01-032019-10-042019-06-282019-03-29
Value0.05.04.021338.0
Percentage of PaymentsForRestructuring0.0500.0133.3262.51650.0266.7

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired


Payments
Period End2020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-09-302016-07-012015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-09-28
Value0.00.00.0220.00.00.00.01.00.06.0930.00.00.0983510.02416.00.00.00.05602630.0-26.09.0
Percentage of PaymentsToAcquireBusinessesNetOfCashAcquired0.00.00.0100.00.00.00.00.0100.00.0100.0100.00.00.00.0100.0100.0100.0100.00.00.00.0100.0100.00.0100.0100.0

us-gaap:PaymentsToAcquireEquityMethodInvestments us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:PaymentsToAcquireEquityMethodInvestments

us-gaap:EquityMethodInvestee


Payments
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282016-09-30
Value10301140121098173084264868212301039112074420
Percentage of PaymentsToAcquireEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans

us-gaap:ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans


Proceeds
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-12-312010-10-012010-07-02
Value63621.0627.04626525.0538.0744779201123366245339156634733962287522623751353318212.023222.025
Percentage of ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleAndCollectionOfReceivables

us-gaap:ProceedsFromSaleAndCollectionOfReceivables


Proceeds
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-28
Value0.04512811310011385318332127243
Percentage of ProceedsFromSaleAndCollectionOfReceivables0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfAvailableForSaleSecuritiesDebt

us-gaap:ProceedsFromSaleOfAvailableForSaleSecuritiesDebt


Proceeds
Period End2020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-30
Value0.00.00.00.0126367.06.09.010.0
Percentage of ProceedsFromSaleOfAvailableForSaleSecuritiesDebt0.00.00.00.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfHeldToMaturitySecurities

us-gaap:ProceedsFromSaleOfHeldToMaturitySecurities


Proceeds
Period End2020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-02
Value0.00.00.00.00.00.04.03.03.00.0142.0-13.015122554102-86.086
Percentage of ProceedsFromSaleOfHeldToMaturitySecurities0.00.00.00.00.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfMachineryAndEquipment

us-gaap:ProceedsFromSaleOfMachineryAndEquipment


Proceeds
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-02
Value22327.00.00.01160.03.00.02.0145.05.00.0200.01.00.00.00.0
Percentage of ProceedsFromSaleOfMachineryAndEquipment100.0100.0100.00.00.0100.00.0100.00.0100.0100.0100.0100.00.0100.00.0100.00.00.00.0

us-gaap:ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent

us-gaap:ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent


Reclassification
Period End2021-07-02
Value80
Percentage of ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent100.0

us-gaap:ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent us-gaap:StatementEquityComponents

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Reclassification
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-29
Value805.0-12.0-11.0-2.0127.0-1.03.0
Percentage of ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent100.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Reclassification
Period End2020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-30
Value-12.0-11.0-2.0127.0-1.03.0-6.0-5.08.09.0
Percentage of ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RestructuringAndRelatedCostIncurredCost us-gaap:RestructuringCostAndReserve, us-gaap:RestructuringPlan

us-gaap:RestructuringAndRelatedCostIncurredCost

us-gaap:ContractTermination, wdc:BusinessRealignmentActivities


Restructuring
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-30
Value0.01.02.02.00.03.01.04.00.05.04.00.01.03.03.00.04.00.00.0
Percentage of RestructuringAndRelatedCostIncurredCost0.0100.0100.0100.00.0100.0100.0100.00.0100.0100.00.0100.0100.0100.00.0100.00.00.0

us-gaap:ContractTermination, wdc:ClosureofForeignManufacturingFacilities


Restructuring
Period End2020-07-032020-04-032020-01-032019-10-042019-06-282019-03-29
Value0.00.00.02.03.01.0
Percentage of RestructuringAndRelatedCostIncurredCost0.00.00.0200.075.00.0

us-gaap:OneTimeTerminationBenefits, wdc:BusinessRealignmentActivities


Restructuring
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-30
Value1.02.02022-10.0233.014718.038197.0134.03.0217.037
Percentage of RestructuringAndRelatedCostIncurredCost0.0200.01000.01100.00.0766.7300.0350.00.0160.0950.00.0700.0433.3133.30.0525.00.00.0

us-gaap:OneTimeTerminationBenefits, wdc:ClosureofForeignManufacturingFacilities


Restructuring
Period End2020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-28
Value0.01.00.02.03.04.0-1.04.0
Percentage of RestructuringAndRelatedCostIncurredCost0.00.00.0200.075.00.0-20.0100.0

us-gaap:RestructuringAndRelatedCostIncurredCost us-gaap:RestructuringPlan

wdc:BusinessRealignmentActivities


Restructuring
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-30
Value1.03.02224-10.0264.018711342198.0167.03.0257.037
Percentage of RestructuringAndRelatedCostIncurredCost0.0300.01100.01200.00.0866.7400.0450.00.0260.01050.00.0800.0533.3233.30.0625.00.00.0

wdc:ClosureofForeignManufacturingFacilities


Restructuring
Period End2020-07-032020-04-032020-01-032019-10-042019-06-282019-03-29
Value0.01.00.04.06.05.0
Percentage of RestructuringAndRelatedCostIncurredCost0.00.00.0400.0150.00.0

us-gaap:RestructuringCharges

us-gaap:RestructuringCharges


Restructuring
Period End2021-07-022021-04-022021-01-012020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-03
Value1.02.02.07.08.0268.0247620468018485280352868122140183810410.0539.0
Percentage of RestructuringCharges100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestructuringCharges us-gaap:RestructuringPlan

wdc:BusinessRealignmentActivities


Restructuring
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-02
Value1.02.02.0237.07.0264.018711342198.0167.03.0267.0379.0222748
Percentage of RestructuringCharges100.0100.0100.00.0100.087.5100.050.075.093.465.091.323.844.433.313.53.874.325.054.47.415.7150.0126.3

wdc:ClosureofForeignManufacturingFacilities


Restructuring
Period End2020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-07-312018-09-282018-06-292018-03-302017-12-292017-09-29
Value0.01.00.04.06.05.07.01604.0560.00.00.0
Percentage of RestructuringCharges0.012.50.050.025.06.635.08.70.070.00.00.00.0

us-gaap:RestructuringCostsAndAssetImpairmentCharges

us-gaap:RestructuringCostsAndAssetImpairmentCharges


Restructuring
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-06-292018-03-302017-12-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-02
Value-4.0-68.02.0237.08.09.08.0247620803548803945681221402756
Percentage of RestructuringCostsAndAssetImpairmentCharges100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability


Right
Period End2021-07-022021-04-022021-01-012020-10-022020-04-032020-01-032019-10-04
Value1.01.0207.01.01.049
Percentage of RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod

wdc:RestrictedStockUnitsAndPerformanceShareUnits


Share
Period End2021-07-022021-01-012020-10-02
Value300000.0400000.0500000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

wdc:RestrictedStockUnitsAndPerformanceShareUnits


Share
Period End2021-07-022021-01-012020-10-02
Value2.090.1137.86
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod

wdc:RestrictedStockUnitsAndPerformanceShareUnits


Share
Period End2021-07-022021-01-012020-10-02
Value300000.0200000.03700000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue

wdc:RestrictedStockUnitsAndPerformanceShareUnits


Share
Period End2021-07-022021-01-012020-10-02
Value-0.710.1361.2
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue


Share
Period End2021-07-022016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-012010-07-022010-04-022010-01-01
Value1.08.0139.02747737686836080279141255530153.05.05.09.08.02.09.01333
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod


Share
Period End2021-07-022021-01-012020-10-022011-04-012010-12-312010-10-01
Value100000.0500000.0200000.0-100000.0-100000.0-100000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice


Share
Period End2021-07-022021-01-012020-10-022016-01-012015-10-022015-04-032015-01-022014-03-282013-12-272013-09-272013-03-292012-12-282012-09-282011-04-012010-12-312010-10-01
Value0.335.8568.8168.7549.0858.2332.5360.2176.2829.9335.6933.8823.028.4124.4227.04
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice


Share
Period End2021-07-022021-01-012020-10-02
Value0.1825.7918.3
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice100.0100.0100.0

us-gaap:StandardProductWarrantyAccrualPayments

us-gaap:StandardProductWarrantyAccrualPayments


Standard
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-012010-07-022010-04-022010-01-01
Value2427243127413548344042263337433835363545315-42.0405450474449455657495456516061514242-40.0-41.0-40.038-39.0-37.0-32.0
Percentage of StandardProductWarrantyAccrualPayments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StandardProductWarrantyAccrualPreexistingIncreaseDecrease

us-gaap:StandardProductWarrantyAccrualPreexistingIncreaseDecrease


Standard
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282011-12-302011-07-012011-04-012010-12-312010-07-022010-04-022010-01-01
Value-21.0-9.0-25.0-21.0-7.01.06.06.010.0-4.09.0-3.03.0-5.0-1.0-15.0-20.03.027-4.0162.04.06.08.0-1.016199.0-2.07.0145.0-7.0-12.0-16.01.0-4.0-3.0-3.0-1.0-2.05.0
Percentage of StandardProductWarrantyAccrualPreexistingIncreaseDecrease100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StandardProductWarrantyAccrualWarrantiesIssued

us-gaap:StandardProductWarrantyAccrualWarrantiesIssued


Standard
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-012010-07-022010-04-022010-01-01
Value5127243559455049433847344343464443434447383643454246504945414440444444465034244540424644464950
Percentage of StandardProductWarrantyAccrualWarrantiesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised


Stock
Period End2021-07-022016-01-012015-10-022015-04-032015-01-022014-10-032014-03-282013-12-272013-09-272013-03-292012-12-282012-09-282012-03-302011-12-302011-09-30
Value0200000.0500000.0-1000000.0-1100000.0-1300000.0-1000000.0-1600000.0-700000.01600000.01200000.02200000.0900000.0200000.0200000.0
Percentage of StockIssuedDuringPeriodSharesStockOptionsExercised0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnrecognizedTaxBenefitsIncreasesResultingFromSettlementsWithTaxingAuthorities

us-gaap:UnrecognizedTaxBenefitsIncreasesResultingFromSettlementsWithTaxingAuthorities


Unrecognized
Period End2021-04-02
Value35
Percentage of UnrecognizedTaxBenefitsIncreasesResultingFromSettlementsWithTaxingAuthorities100.0

wdc:AggregateValueOfRestrictedStockAwardsVested us-gaap:AwardType

wdc:AggregateValueOfRestrictedStockAwardsVested

wdc:RestrictedStockUnitsAndPerformanceShareUnits


Aggregate
Period End2021-07-022021-01-012020-10-02
Value189.0149
Percentage of AggregateValueOfRestrictedStockAwardsVested100.0100.0100.0

wdc:DividendsDeclared

wdc:DividendsDeclared


Dividends
Period End2020-07-032020-04-032020-01-032019-10-042019-03-292018-12-282018-09-282018-03-302017-12-292017-09-29
Value1.0150149149146146144148149146
Percentage of DividendsDeclared100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wdc:EffectiveIncomeTaxReconciliationDiscreteTaxEffectsNetOfAdjustments

wdc:EffectiveIncomeTaxReconciliationDiscreteTaxEffectsNetOfAdjustments


Effective
Period End2021-01-01
Value8000000.0
Percentage of EffectiveIncomeTaxReconciliationDiscreteTaxEffectsNetOfAdjustments100.0

wdc:EffectiveIncomeTaxReconciliationDiscreteTaxEffectsNetTaxDeficiencies

wdc:EffectiveIncomeTaxReconciliationDiscreteTaxEffectsNetTaxDeficiencies


Effective
Period End2021-04-022021-01-012020-10-02
Value111211
Percentage of EffectiveIncomeTaxReconciliationDiscreteTaxEffectsNetTaxDeficiencies100.0100.0100.0

wdc:Employeeterminationassetimpairmentandothercharges

wdc:Employeeterminationassetimpairmentandothercharges


Employeeterminationassetimpairmentandothercharges
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-27
Value-4.0-68.02.0237.08.09.08.0247620468035485280394568122140275610410.0539.036252311
Percentage of Employeeterminationassetimpairmentandothercharges100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wdc:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAndAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsAndTax

wdc:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAndAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsAndTax


Other
Period End2021-04-022021-01-012020-04-032020-01-03
Value-84.020-76.0-6.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAndAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsAndTax100.0100.0100.0100.0

wdc:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodAndAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsAndTax

wdc:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodAndAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsAndTax


Other
Period End2020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-29
Value3022-76.0-6.0-33.0-21.0-24.07.0-1.0-24.01810.03.0
Percentage of OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodAndAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsAndTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wdc:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodAndAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsNetofTax

wdc:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodAndAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsNetofTax


Other
Period End2020-10-022020-04-032020-01-032019-10-042019-03-292018-12-28
Value23-62.0-8.0-27.0-19.011
Percentage of OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodAndAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsNetofTax100.0100.0100.0100.0100.0100.0

wdc:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodAndAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsNetofTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2020-10-022020-04-032020-01-032019-10-042019-03-292018-12-28
Value23-62.0-8.0-27.0-19.011
Percentage of OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodAndAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsNetofTax100.0100.0100.0100.0100.0100.0

wdc:PaymentsForLongTermLoansForRelatedParties

wdc:PaymentsForLongTermLoansForRelatedParties


Payments
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-01
Value511381140.01295317150635039311529839439222969171182127106
Percentage of PaymentsForLongTermLoansForRelatedParties100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wdc:ProceedsFromLongTermLoansForRelatedParties

wdc:ProceedsFromLongTermLoansForRelatedParties


Proceeds
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-02
Value1536927730429033335719625816814426319614981617139120160.00.0
Percentage of ProceedsFromLongTermLoansForRelatedParties100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0

wdc:ShareBasedCompensationArrangementByShareBasedPaymentAwardsEquityInstrumentsOtherThanOptionsForfeitedInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

wdc:ShareBasedCompensationArrangementByShareBasedPaymentAwardsEquityInstrumentsOtherThanOptionsForfeitedInPeriodWeightedAverageGrantDateFairValue

wdc:RestrictedStockUnitsAndPerformanceShareUnits


Share
Period End2021-07-022021-01-012020-10-02
Value-1.46-4.8165.04
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardsEquityInstrumentsOtherThanOptionsForfeitedInPeriodWeightedAverageGrantDateFairValue100.0100.0100.0

wdc:StockIssuedDuringPeriodSharesEmployeeStockPurchasePlansNetOfTaxWithholdings us-gaap:StatementEquityComponents

wdc:StockIssuedDuringPeriodSharesEmployeeStockPurchasePlansNetOfTaxWithholdings

us-gaap:TreasuryStock


Stock
Period End2021-01-012020-10-022020-04-032020-01-032019-10-04
Value2000000.02000000.01000000.01000000.03000000.0
Percentage of StockIssuedDuringPeriodSharesEmployeeStockPurchasePlansNetOfTaxWithholdings100.0100.0100.0100.0100.0

wdc:StockIssuedDuringPeriodValueEmployeeStockPurchasePlanNetOfTaxWithholdings

wdc:StockIssuedDuringPeriodValueEmployeeStockPurchasePlanNetOfTaxWithholdings


Stock
Period End2021-01-012020-10-022020-04-032020-01-032019-10-04
Value60-40.0-8.044-26.0
Percentage of StockIssuedDuringPeriodValueEmployeeStockPurchasePlanNetOfTaxWithholdings100.0100.0100.0100.0100.0

wdc:StockIssuedDuringPeriodValueEmployeeStockPurchasePlanNetOfTaxWithholdings us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-04-022021-01-012020-10-022020-04-032020-01-032019-10-04
Value-26.0-71.0-256.0-72.0-81.0-207.0
Percentage of StockIssuedDuringPeriodValueEmployeeStockPurchasePlanNetOfTaxWithholdings0.0-118.3640.0900.0-184.1796.2

us-gaap:TreasuryStock


Stock
Period End2021-04-022021-01-012020-10-022020-04-032020-01-032019-10-04
Value2613121664125181
Percentage of StockIssuedDuringPeriodValueEmployeeStockPurchasePlanNetOfTaxWithholdings0.0218.3-540.0-800.0284.1-696.2

wdc:TaxesPaidOnVestedStockAwardsUnderEmployeeStockPlans

wdc:TaxesPaidOnVestedStockAwardsUnderEmployeeStockPlans


Taxes
Period End2021-07-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-12-312010-10-012010-07-02
Value5.02.0413.0152.0526.0403.0667.0976.061137114265.01.0433.02.02.0575.03.02.022152.01.07.01.09.00.05.00.0-8.04.0-1.0
Percentage of TaxesPaidOnVestedStockAwardsUnderEmployeeStockPlans100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.0100.0100.0100.0

wdc:UnrecognizedTaxBenefitsDecreaseResultingFromRestructuringActivities

wdc:UnrecognizedTaxBenefitsDecreaseResultingFromRestructuringActivities


Unrecognized
Period End2021-04-02
Value22
Percentage of UnrecognizedTaxBenefitsDecreaseResultingFromRestructuringActivities100.0

dei:EntityPublicFloat

dei:EntityPublicFloat


Entity
Period End2020-12-31
Value13500
Percentage of EntityPublicFloat100.0

us-gaap:AccountsPayableRelatedPartiesCurrent

us-gaap:AccountsPayableRelatedPartiesCurrent


Accounts
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012015-07-03
Value3983973934044073973645073313123102862592822502262061941751901680.0
Percentage of AccountsPayableRelatedPartiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:AccountsPayableRelatedPartiesCurrent us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:EquityMethodInvestee


Accounts
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-01
Value398397393404407397364507331312310286259282250226206194175190168
Percentage of AccountsPayableRelatedPartiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccruedIncomeTaxesNoncurrent

us-gaap:AccruedIncomeTaxesNoncurrent


Accrued
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-06-30
Value68469469871181583083983992893010189391315142514250.0
Percentage of AccruedIncomeTaxesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

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

us-gaap:AssetsFairValueDisclosure

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring


Assets
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-01
Value12837848068611079102810518891388151417522234256223593024359428451781138313552201231392643135758167712457568941739215812271113951496721869737807721
Percentage of AssetsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Assets
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-01
Value1452332428383122631441531791791511351431351342584174711777347045905245005075075010.05.00.04915271241020.0106138
Percentage of AssetsFairValueDisclosure1.16.64.12.82.63.72.92.54.59.58.78.07.06.44.54.04.77.518.730.821.476.6187.2109.5437.069.129.840.767.156.00.00.20.04.41.65.417.211.70.013.119.1

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring


Assets
Period End2020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-01
Value0.00.00.00.00.00.00.00.00.00.00.00.00.01.00.00.0710.00.00.00.00.00.00.00.0141414141414141414151515
Percentage of AssetsFairValueDisclosure0.00.00.00.00.00.00.00.00.00.00.00.00.00.10.00.03.20.00.00.00.00.00.00.00.01.60.80.61.11.31.52.81.91.62.01.92.1

us-gaap:AssetsFairValueDisclosure us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Assets
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-01
Value1297836839885110710661082911145116581905241327412510315937372980191616411772274340811261347725128221771752126314091753217712411176980537859985752928874
Percentage of AssetsFairValueDisclosure101.1106.6104.1102.8102.6103.7102.9102.5104.5109.5108.7108.0107.0106.4104.5104.0104.7107.6118.7130.8124.6176.6287.2209.5537.0169.1129.8140.7167.1157.6100.8100.9101.1105.7103.0108.3119.1113.3102.0115.0121.2

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

us-gaap:CashAndCashEquivalentsFairValueDisclosure

us-gaap:MoneyMarketFunds, us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring


Cash
Period End2021-07-022020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-07-02
Value12838611079102810518891388150817442229255423533016358528361776138113552199231392643135758167712457568941739215812271113951496721869737807721458
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashAndCashEquivalentsFairValueDisclosure us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency

us-gaap:MoneyMarketFunds, us-gaap:FairValueMeasurementsRecurring


Cash
Period End2021-07-022020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-07-02
Value12838611079102810518891388150817442229255423533016358528361776138113552199231392643135758167712457568941739215812271113951496721869737807721458
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring, us-gaap:MoneyMarketFunds


Cash
Period End2021-04-022021-01-012020-07-03
Value7848061079
Percentage of CashAndCashEquivalentsFairValueDisclosure0.00.0100.0

us-gaap:CashAndCashEquivalentsFairValueDisclosure us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument

us-gaap:FairValueMeasurementsRecurring, us-gaap:MoneyMarketFunds


Cash
Period End2021-04-022021-01-012020-07-03
Value7848061079
Percentage of CashAndCashEquivalentsFairValueDisclosure0.00.0100.0

us-gaap:ContractWithCustomerLiability

us-gaap:ContractWithCustomerLiability


Contract
Period End2020-07-032019-06-282019-03-292018-12-282018-09-282018-06-30
Value3.043465386120
Percentage of ContractWithCustomerLiability100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentCarryingAmount

us-gaap:DebtInstrumentCarryingAmount


Debt
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032018-06-29
Value8825903792509498971111375
Percentage of DebtInstrumentCarryingAmount100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentCarryingAmount us-gaap:DebtInstrument

wdc:TermLoanA1


Debt
Period End2021-07-022021-04-022021-01-012020-10-022020-07-03
Value43324394445745204583
Percentage of DebtInstrumentCarryingAmount49.148.648.247.647.2

wdc:U.S.TermLoanB4


Debt
Period End2021-07-022021-04-022021-01-012020-10-022020-07-03
Value10931243139315431693
Percentage of DebtInstrumentCarryingAmount12.413.815.116.217.4

us-gaap:DebtInstrumentFaceAmount

us-gaap:DebtInstrumentFaceAmount


Debt
Period End2020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-07-01
Value971197749986103741069410762108001133711375114121223713327133561330117526
Percentage of DebtInstrumentFaceAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentFaceAmount us-gaap:DebtInstrument

wdc:ConvertibleSeniorNotesDueTwoThousandTwentyMember


Debt
Period End2020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-06-302016-08-262016-07-012016-05-12
Value3535353535353535353535373101500
Percentage of DebtInstrumentFaceAmount0.40.40.40.30.30.30.30.30.30.30.30.01.80.0

wdc:FourPointSeventyFivePercentSeniorUnsecuredNotesDueTwoThousandTwentySix


Debt
Period End2020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302018-02-282017-06-30
Value230023002300230023002300230023002300230023000.0
Percentage of DebtInstrumentFaceAmount23.723.523.022.221.521.421.320.320.220.20.00.0

wdc:TermLoanA1


Debt
Period End2020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-06-30
Value45834645470847714834489649284959499150220.0
Percentage of DebtInstrumentFaceAmount47.247.547.146.045.245.545.643.743.944.00.0

wdc:U.S.TermLoanB4


Debt
Period End2020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-05-312017-06-30
Value16931694184321682425243124372443244924600.0
Percentage of DebtInstrumentFaceAmount17.417.318.520.922.722.622.621.521.50.00.0

us-gaap:DebtInstrumentFaceAmount us-gaap:DebtInstrument, us-gaap:LongtermDebtType

wdc:OnePointFiftyPercentSeniorConvertibleNotesDueTwoThousandTwentyFour, us-gaap:ConvertibleDebt


Debt
Period End2020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-02-282017-06-30
Value11001100110011001100110011001100110011000.0
Percentage of DebtInstrumentFaceAmount11.311.311.010.610.310.210.29.79.70.00.0

us-gaap:DebtInstrumentInterestRateEffectivePercentage us-gaap:DebtInstrument, us-gaap:VariableRate

us-gaap:DebtInstrumentInterestRateEffectivePercentage

wdc:TermLoanA1, us-gaap:LondonInterbankOfferedRateLIBOR


Debt
Period End2021-07-022020-07-032019-06-28
Value1.60.01670.039
Percentage of DebtInstrumentInterestRateEffectivePercentage100.0100.0100.0

wdc:U.S.TermLoanB4, us-gaap:LondonInterbankOfferedRateLIBOR


Debt
Period End2021-07-022020-07-032019-06-28
Value1.850.01920.0415
Percentage of DebtInstrumentInterestRateEffectivePercentage115.6115.0106.4

us-gaap:DebtInstrumentUnamortizedDiscount us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentUnamortizedDiscount

wdc:OnePointFiftyPercentSeniorConvertibleNotesDueTwoThousandTwentyFour, us-gaap:ConvertibleDebt


Debt
Period End2021-07-02
Value165
Percentage of DebtInstrumentUnamortizedDiscount100.0

us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet

us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet


Debt
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-06-30
Value100108117126136145153162172177186194203212205
Percentage of DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet us-gaap:DebtInstrument, us-gaap:LongtermDebtType

wdc:OnePointFiftyPercentSeniorConvertibleNotesDueTwoThousandTwentyFour, us-gaap:ConvertibleDebt


Debt
Period End2021-07-022020-07-032019-06-282018-06-292018-03-30
Value83113142-169.0-176.0
Percentage of DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet83.083.182.6-83.3-83.0

us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet

us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet


Debt
Period End2021-07-022017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012015-07-03
Value100186196205-213.0-226.0-237.0-532.0-11.0
Percentage of DebtInstrumentUnamortizedDiscountPremiumNet100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredFinanceCostsNet us-gaap:DebtInstrument

us-gaap:DeferredFinanceCostsNet

wdc:ConvertibleSeniorNotesDueTwoThousandTwentyMember


Deferred
Period End2020-07-032019-06-28
Value1.02.0
Percentage of DeferredFinanceCostsNet100.0100.0

wdc:FourPointSeventyFivePercentSeniorUnsecuredNotesDueTwoThousandTwentySix


Deferred
Period End2021-07-022020-07-032019-06-282018-06-292018-03-30
Value1214172020
Percentage of DeferredFinanceCostsNet0.01400.0850.00.00.0

wdc:TermLoanA1


Deferred
Period End2021-07-022020-07-032019-06-282018-06-292018-03-30
Value5.07.010.08.09.0
Percentage of DeferredFinanceCostsNet0.0700.0500.00.00.0

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredIncomeTaxLiabilities


Deferred
Period End2021-07-022020-07-032019-06-282018-06-292017-06-302016-07-012015-07-032014-06-272013-06-282012-06-292011-07-01
Value5025486655399231039136163156209126
Percentage of DeferredIncomeTaxLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsDeferredIncome

us-gaap:DeferredTaxAssetsDeferredIncome


Deferred
Period End2021-07-02
Value128
Percentage of DeferredTaxAssetsDeferredIncome100.0

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsGross


Deferred
Period End2021-07-022020-07-032019-06-282018-06-292017-06-302016-07-012015-07-032014-06-27
Value124811271146136812881245606636
Percentage of DeferredTaxAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards


Deferred
Period End2021-07-022020-07-032019-06-282018-06-292017-06-30
Value196251285443292
Percentage of DeferredTaxAssetsOperatingLossCarryforwards100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsOther


Deferred
Period End2021-07-022020-07-032019-06-282018-06-292017-06-302016-07-012015-07-032014-06-272013-06-282012-06-292011-07-012010-07-02
Value131133135118141177656571905347
Percentage of DeferredTaxAssetsOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsPropertyPlantAndEquipment

us-gaap:DeferredTaxAssetsPropertyPlantAndEquipment


Deferred
Period End2021-07-022020-07-032019-06-282018-06-292017-06-302016-07-012015-07-032014-06-272013-06-28
Value101123144161236256495847
Percentage of DeferredTaxAssetsPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation


Deferred
Period End2021-07-022020-07-032019-06-282018-06-292017-06-302016-07-012015-07-032014-06-272013-06-282012-06-292011-07-012010-07-02
Value1431301241452522071381901821666944
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves


Deferred
Period End2021-07-022020-07-032019-06-282018-06-292017-06-302016-07-012015-07-032014-06-272013-06-282012-06-292011-07-012010-07-02
Value885248538482503845615150
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesOther


Deferred
Period End2021-07-022020-07-032019-06-282018-06-292017-06-302016-07-012015-07-032014-06-272013-06-282012-06-292011-07-012010-07-02
Value20263243119.010.0110.01810.011
Percentage of DeferredTaxLiabilitiesOther100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment


Deferred
Period End2021-07-022020-07-032019-06-282018-06-292017-06-302016-07-012015-07-032014-06-272013-06-282012-06-29
Value2022944134918741030126152156191
Percentage of DeferredTaxLiabilitiesPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesUndistributedForeignEarnings

us-gaap:DeferredTaxLiabilitiesUndistributedForeignEarnings


Deferred
Period End2021-07-022020-07-032019-06-282018-06-292017-06-302016-07-01
Value2802282205.0380.0
Percentage of DeferredTaxLiabilitiesUndistributedForeignEarnings100.0100.0100.0100.0100.00.0

us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-07-02
Value359
Percentage of DefinedBenefitPlanAccumulatedBenefitObligation100.0

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate us-gaap:RetirementPlanSponsorLocation

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate

us-gaap:ForeignPlan


Defined
Period End2021-07-022020-07-032019-06-282018-06-292017-06-302016-07-01
Value1.40.0110.0040.0070.0080.004
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease us-gaap:RetirementPlanSponsorLocation

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease

us-gaap:ForeignPlan


Defined
Period End2021-07-022020-07-032019-06-282018-06-292017-06-30
Value2.00.020.0060.0070.008
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanBenefitObligation

us-gaap:DefinedBenefitPlanBenefitObligation


Defined
Period End2021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-06-282019-03-292018-12-282018-06-29
Value366387374366277278280260261260
Percentage of DefinedBenefitPlanBenefitObligation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanBenefitObligation us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-07-022020-07-032019-10-042019-06-282018-06-292017-06-302016-07-052016-07-012015-07-03
Value359366281280260249326326231
Percentage of DefinedBenefitPlanBenefitObligation0.0100.00.0100.0100.00.00.00.00.0

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets


Defined
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-06-282019-03-292018-12-282018-06-292017-06-302016-07-01
Value196213227221215211210208205204200189212
Percentage of DefinedBenefitPlanFairValueOfPlanAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets us-gaap:DefinedBenefitPlanByPlanAssetCategories

us-gaap:DefinedBenefitPlanCashAndCashEquivalents


Defined
Period End2020-07-032019-06-28
Value129.0
Percentage of DefinedBenefitPlanFairValueOfPlanAssets5.64.3

wdc:DefinedBenefitPlanEquityCommingledMutualFunds


Defined
Period End2021-07-022020-07-032019-06-28
Value737268
Percentage of DefinedBenefitPlanFairValueOfPlanAssets37.233.532.7

wdc:DefinedBenefitPlanFixedIncomeCommingledMutualFunds


Defined
Period End2021-07-022020-07-032019-06-28
Value123131132
Percentage of DefinedBenefitPlanFairValueOfPlanAssets62.860.963.5

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

us-gaap:DefinedBenefitPlanCashAndCashEquivalents, us-gaap:FairValueInputsLevel1


Defined
Period End2020-07-032019-06-28
Value129.0
Percentage of DefinedBenefitPlanFairValueOfPlanAssets5.64.3

wdc:DefinedBenefitPlanEquityCommingledMutualFunds, us-gaap:FairValueInputsLevel2


Defined
Period End2021-07-022020-07-032019-06-28
Value737268
Percentage of DefinedBenefitPlanFairValueOfPlanAssets37.233.532.7

wdc:DefinedBenefitPlanFixedIncomeCommingledMutualFunds, us-gaap:FairValueInputsLevel2


Defined
Period End2021-07-022020-07-032019-06-28
Value123131132
Percentage of DefinedBenefitPlanFairValueOfPlanAssets62.860.963.5

wdc:RealEstateInvestmentTrust, us-gaap:FairValueMeasuredAtNetAssetValuePerShare


Defined
Period End2021-07-02
Value30
Percentage of DefinedBenefitPlanFairValueOfPlanAssets15.3

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueInputsLevel1


Defined
Period End2020-07-032019-06-282018-06-292017-06-302016-07-01
Value129.03.02.08.0
Percentage of DefinedBenefitPlanFairValueOfPlanAssets5.64.31.51.13.8

us-gaap:FairValueInputsLevel2


Defined
Period End2021-07-022020-07-032019-06-282018-06-292017-06-302016-07-01
Value196203199197187204
Percentage of DefinedBenefitPlanFairValueOfPlanAssets100.094.495.798.598.996.2

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-07-022020-07-032019-10-042019-06-282018-06-292017-06-302016-07-052016-07-012015-07-03
Value227215211208200189212212185
Percentage of DefinedBenefitPlanFairValueOfPlanAssets115.8100.00.0100.0100.0100.00.0100.00.0

us-gaap:DefinedBenefitPlanFundedStatusOfPlan

us-gaap:DefinedBenefitPlanFundedStatusOfPlan


Defined
Period End2021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-06-282019-03-292018-12-282018-06-29
Value-153000000.0-160000000.0-153000000.0-151000000.0-66000000.0-68000000.0-72000000.0-55000000.0-57000000.0-60000000.0
Percentage of DefinedBenefitPlanFundedStatusOfPlan100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-07-022020-07-032019-10-042019-06-282018-06-292017-06-302016-07-01
Value-132000000.0-151000000.0-70000000.0-72000000.0-60000000.0-60000000.0-114000000.0
Percentage of DefinedBenefitPlanFundedStatusOfPlan0.0100.00.0100.0100.00.00.0

us-gaap:DefinedBenefitPlanPlanAssetsTargetAllocationPercentage us-gaap:DefinedBenefitPlanByPlanAssetCategories, us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanPlanAssetsTargetAllocationPercentage

us-gaap:DefinedBenefitPlanDebtSecurity, us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-07-022020-07-03
Value55.00.62
Percentage of DefinedBenefitPlanPlanAssetsTargetAllocationPercentage100.0100.0

us-gaap:DefinedBenefitPlanEquitySecurities, us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-07-022020-07-03
Value30.00.35
Percentage of DefinedBenefitPlanPlanAssetsTargetAllocationPercentage54.556.5

wdc:DefinedBenefitPlanOtherAssets, us-gaap:ForeignPlan, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-07-022020-07-03
Value15.00.03
Percentage of DefinedBenefitPlanPlanAssetsTargetAllocationPercentage27.34.8

us-gaap:DerivativeAssets us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:DerivativeAssets

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


Derivative
Period End2021-07-022020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032014-06-272014-03-282013-09-272013-03-292012-12-282012-09-282012-06-292010-07-02
Value142428383122441729465124111916164.076126313.01.00.02.07.01.05.02415221.017
Percentage of DerivativeAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeAssets us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency

us-gaap:ForeignExchangeContract, us-gaap:FairValueMeasurementsRecurring


Derivative
Period End2021-07-022020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032014-06-272014-03-282013-09-272013-03-292012-12-282012-09-282012-06-292010-07-02
Value142428383122441729465124111916164.076126313.01.00.02.07.01.05.02415221.017
Percentage of DerivativeAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

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


Derivative
Period End2021-04-022021-01-012020-07-03
Value523328
Percentage of DerivativeAssets0.00.0100.0

us-gaap:DerivativeAssets us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument

us-gaap:FairValueMeasurementsRecurring, us-gaap:ForeignExchangeContract


Derivative
Period End2021-04-022021-01-012020-07-03
Value523328
Percentage of DerivativeAssets0.00.0100.0

us-gaap:DerivativeLiabilities us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:DerivativeLiabilities

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


Derivative
Period End2021-07-022020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-06-292011-07-01
Value6510.09.0281418401526312810.07.0158.010017822232262311745242.0217341571.03.022-5.0
Percentage of DerivativeLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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


Derivative
Period End2021-07-022020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282017-06-30
Value8012013313269886533121.0
Percentage of DerivativeLiabilities123.11200.01477.8471.4492.9488.9162.5220.046.212.5

us-gaap:DerivativeLiabilities us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency

us-gaap:ForeignExchangeContract, us-gaap:FairValueMeasurementsRecurring


Derivative
Period End2021-07-022020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-06-292011-07-01
Value6510.09.0281418401526312810.07.0158.010017822232262311745242.0217341571.03.022-5.0
Percentage of DerivativeLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestRateSwap, us-gaap:FairValueMeasurementsRecurring


Derivative
Period End2021-07-022020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282017-06-30
Value8012013313269886533121.0
Percentage of DerivativeLiabilities123.11200.01477.8471.4492.9488.9162.5220.046.212.5

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

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


Derivative
Period End2021-04-022021-01-012020-07-03
Value113169.0
Percentage of DerivativeLiabilities0.00.0100.0

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


Derivative
Period End2021-04-022021-01-012020-07-03
Value91109133
Percentage of DerivativeLiabilities0.00.01477.8

us-gaap:DerivativeLiabilities us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument

us-gaap:FairValueMeasurementsRecurring, us-gaap:ForeignExchangeContract


Derivative
Period End2021-04-022021-01-012020-07-03
Value113169.0
Percentage of DerivativeLiabilities0.00.0100.0

us-gaap:FairValueMeasurementsRecurring, us-gaap:InterestRateSwap


Derivative
Period End2021-04-022021-01-012020-07-03
Value91109133
Percentage of DerivativeLiabilities0.00.01477.8

us-gaap:DerivativeNotionalAmount

us-gaap:DerivativeNotionalAmount


Derivative
Period End2021-07-022020-07-032019-06-28
Value488046205710
Percentage of DerivativeNotionalAmount100.0100.0100.0

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeRelatedLiabilitiesCurrent


Employee
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282012-06-29
Value634494523497472433537432347402345500479509523468506480581552392282315336330398451438460409456388453376
Percentage of EmployeeRelatedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized


Employee
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-29
Value608598685772581653693783557651743812540575653731
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized us-gaap:AwardType

us-gaap:RestrictedStockUnitsRSU


Employee
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-30
Value543586663743543610640722485577657750464528600662461537611685
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized89.398.096.896.293.593.492.492.287.188.688.492.485.991.891.990.60.00.00.00.0

wdc:EmployeeStockPurchasePlan


Employee
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-30
Value6512222938415056656271435115152331344146
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized10.72.03.23.86.56.37.27.211.79.59.65.39.42.62.33.10.00.00.00.0

us-gaap:EquityMethodInvestmentOwnershipPercentage dei:LegalEntity, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:EquityMethodInvestmentOwnershipPercentage

wdc:KioxiaCorporation, wdc:FlashVentures


Equity
Period End2021-07-022020-07-03
Value50.10.501
Percentage of EquityMethodInvestmentOwnershipPercentage100.0100.0

us-gaap:EquityMethodInvestmentOwnershipPercentage us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

wdc:FlashVentures


Equity
Period End2021-07-022020-07-032019-06-282018-06-29
Value49.90.4990.4990.499
Percentage of EquityMethodInvestmentOwnershipPercentage99.699.60.00.0

wdc:KioxiaCorporation


Equity
Period End2021-07-022020-07-03
Value49.90.499
Percentage of EquityMethodInvestmentOwnershipPercentage99.699.6

wdc:UnisVenture


Equity
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032019-06-282018-06-29
Value49.049.049.049.00.490.490.49
Percentage of EquityMethodInvestmentOwnershipPercentage97.80.00.00.097.80.00.0

us-gaap:ExcessCapital us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:ExcessCapital

wdc:OnePointFiftyPercentSeniorConvertibleNotesDueTwoThousandTwentyFour, us-gaap:ConvertibleDebt


Excess
Period End2021-07-02
Value3000000.0
Percentage of ExcessCapital100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization


Finite
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292011-07-012010-07-02
Value5146506850104865468046794567438941853978374834943218294026642351-2033.01754142911839407507266996766676245745304774533953432922391861346245
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CustomerRelationships


Finite
Period End2021-07-022020-07-032019-06-282018-06-292017-06-302016-07-012015-07-032014-06-272013-06-282012-06-29
Value491423372299-227.0157126975714
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization9.59.08.99.311.216.718.618.316.610.4

wdc:ExistingTechnology


Finite
Period End2021-07-022020-07-032019-06-282018-06-292017-06-302016-07-012015-07-032014-06-272013-06-282012-06-292011-07-012010-07-02
Value4165385233162528-1373.06324713682451085945
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization80.982.379.278.667.567.269.769.471.480.695.2100.0

wdc:LeaseholdInterests


Finite
Period End2021-07-022020-07-032019-06-282018-06-292017-06-302016-07-012015-07-032014-06-272013-06-282012-06-29
Value4.07.07.08.0-11.010.01110.05.02.0
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization0.10.10.20.20.51.11.61.91.51.5

wdc:Tradenamesandtrademarks


Finite
Period End2021-07-022020-07-032019-06-282018-06-292017-06-302016-07-01
Value486398310222-134.045
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization9.48.57.46.96.64.8

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths


Finite
Period End2021-07-02
Value221
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree


Finite
Period End2021-07-02
Value7000000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearThree100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo


Finite
Period End2021-07-02
Value134
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo100.0

us-gaap:FiniteLivedIntangibleAssetsGross

us-gaap:FiniteLivedIntangibleAssetsGross


Finite
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012012-06-292011-07-012010-07-02
Value550855075526554355415725579858235824582458165818581858165814519351605203520335393539933133133
Percentage of FiniteLivedIntangibleAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsGross us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CustomerRelationships


Finite
Period End2021-07-022020-07-032019-06-282018-06-292017-06-302012-06-29
Value618616635635627139
Percentage of FiniteLivedIntangibleAssetsGross11.211.110.910.912.214.9

wdc:ExistingTechnology


Finite
Period End2021-07-022020-07-032019-06-282018-06-292017-06-302012-06-292011-07-012010-07-02
Value42314248433243233478543127127
Percentage of FiniteLivedIntangibleAssetsGross76.876.774.474.367.458.295.595.5

wdc:LeaseholdInterests


Finite
Period End2021-07-022020-07-032019-06-282018-06-292017-06-302012-06-29
Value122929323543
Percentage of FiniteLivedIntangibleAssetsGross0.20.50.50.60.74.6

wdc:Tradenamesandtrademarks


Finite
Period End2021-07-022020-07-032019-06-282018-06-292017-06-30
Value647648648648645
Percentage of FiniteLivedIntangibleAssetsGross11.711.711.111.112.5

us-gaap:ForeignCurrencyCashFlowHedgeGainLossToBeReclassifiedDuringNext12Months

us-gaap:ForeignCurrencyCashFlowHedgeGainLossToBeReclassifiedDuringNext12Months


Foreign
Period End2021-07-022021-04-022021-01-012020-10-02
Value-30000000.0-42000000.0-57000000.0-70000000.0
Percentage of ForeignCurrencyCashFlowHedgeGainLossToBeReclassifiedDuringNext12Months100.0100.0100.0100.0

us-gaap:GuaranteeObligationsMaximumExposure us-gaap:BalanceSheetLocation, us-gaap:RelatedPartyTransaction

us-gaap:GuaranteeObligationsMaximumExposure

wdc:OffBalanceSheetGuarantee, us-gaap:EquityMethodInvestee


Guarantee
Period End2021-04-022021-01-01
Value19932107
Percentage of GuaranteeObligationsMaximumExposure100.0100.0

us-gaap:GuaranteeObligationsMaximumExposure us-gaap:GuaranteeObligationsByNature, us-gaap:RelatedPartyTransactionsByRelatedParty

wdc:PaymentOfPrincipalAmortization, us-gaap:EquityMethodInvestee


Guarantee
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-01
Value1474149715701496141113531293125111631048960914915828703774711785824912861
Percentage of GuaranteeObligationsMaximumExposure0.075.174.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

wdc:PurchaseOptionExercisePrice, us-gaap:EquityMethodInvestee


Guarantee
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-01
Value499496537508492474453443412373353322308281238248257263278323290
Percentage of GuaranteeObligationsMaximumExposure0.024.925.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:GuaranteeObligationsMaximumExposure us-gaap:RelatedPartyTransaction, wdc:BalanceSheetInformation

us-gaap:EquityMethodInvestee, wdc:OffBalanceSheetGuarantee


Guarantee
Period End2021-07-022020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-01
Value19732004190318271746169415751570001450001236122311800010600010229681048110212351151
Percentage of GuaranteeObligationsMaximumExposure0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:GuaranteeObligationsMaximumExposure us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:EquityMethodInvestee


Guarantee
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-01
Value1973199321072004190318271746169415751421131312361223110994110229681048110212351151
Percentage of GuaranteeObligationsMaximumExposure0.0100.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:IntangibleAssetsGrossExcludingGoodwill

us-gaap:IntangibleAssetsGrossExcludingGoodwill


Intangible
Period End2021-07-022020-07-032019-06-282018-06-292017-06-30
Value55885621589658985856
Percentage of IntangibleAssetsGrossExcludingGoodwill100.0100.0100.0100.0100.0

us-gaap:InventoryFinishedGoodsNetOfReserves

us-gaap:InventoryFinishedGoodsNetOfReserves


Inventory
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292011-07-01
Value90510041000965808947941101711731363137210461018105198097010631046882819971655634618700651618585565554511457446423430508413142
Percentage of InventoryFinishedGoodsNetOfReserves100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InventoryGross us-gaap:BalanceSheetLocation, us-gaap:RelatedPartyTransaction

us-gaap:InventoryGross

us-gaap:PrepaidExpensesAndOtherCurrentAssets, us-gaap:EquityMethodInvestee


Inventory
Period End2021-04-022021-01-01
Value656662
Percentage of InventoryGross100.0100.0

us-gaap:InventoryGross us-gaap:RelatedPartyTransaction, wdc:BalanceSheetInformation

us-gaap:EquityMethodInvestee, us-gaap:PrepaidExpensesAndOtherCurrentAssets


Inventory
Period End2021-07-022020-10-02
Value712575
Percentage of InventoryGross0.00.0

us-gaap:InventoryRawMaterialsAndSuppliesNetOfReserves

us-gaap:InventoryRawMaterialsAndSuppliesNetOfReserves


Inventory
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-01
Value1623157014661426130613021334137011421122119111391048855634650646581586610569
Percentage of InventoryRawMaterialsAndSuppliesNetOfReserves100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InventoryWorkInProcessNetOfReserves

us-gaap:InventoryWorkInProcessNetOfReserves


Inventory
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292011-07-01
Value108811091110964956842847900968955864934878764667682632627617680589440474507500498510509493519581579575583581559552263
Percentage of InventoryWorkInProcessNetOfReserves100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Investments us-gaap:AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyType

us-gaap:Investments

wdc:FlashAllianceLtd


Investmentsus-gaap:
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-01
Value293294315307300297297299296287286277283295279278279280267310306
Percentage of Investments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wdc:FlashForwardLtd


Investmentsus-gaap:
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-01
Value129129136132128125124124123119119114116120112112112112106122100
Percentage of Investments44.043.943.243.042.742.141.841.541.641.541.641.241.040.740.140.340.140.039.739.432.7

wdc:FlashPartnersLtd


Investmentsus-gaap:
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-01
Value199200214208203200200202200194193187191198187187187187178205202
Percentage of Investments67.968.067.967.867.767.367.367.667.667.667.567.567.567.167.067.367.066.866.766.166.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths


Lessee
Period End2021-07-022021-04-022021-01-012020-10-02
Value40404035
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths100.0100.0100.0100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear


Lessee
Period End2021-04-022021-01-012020-10-02
Value122535
Percentage of LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear100.0100.0100.0

us-gaap:LiabilitiesFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:LiabilitiesFairValueDisclosure

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Liabilities
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-06-292012-03-302011-12-302011-09-302011-07-01
Value145204125130142160831061054838312810.07.0159.010017822232262311745242.0217341571.03.022-3.018-33.05.0
Percentage of LiabilitiesFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring


Liabilities
Period End2020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282012-12-282012-06-292011-12-302011-09-302011-07-01
Value0.00.00.00.00.00.00.00.00.00.00.00.01.02.01.01.01550.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of LiabilitiesFairValueDisclosure0.00.00.00.00.00.00.00.00.00.00.00.011.12.00.64.5673.90.00.00.00.00.00.00.00.00.00.00.00.00.00.0-0.00.0

us-gaap:LiabilitiesFairValueDisclosure us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Liabilities
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-06-292012-03-302011-12-302011-09-302011-07-01
Value145204125130142160831061054838312810.07.01510.0102179231782262311745242.0217341571.03.022-3.018-33.05.0
Percentage of LiabilitiesFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0111.1102.0100.6104.5773.9100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilityForUncertainTaxPositionsNoncurrent

us-gaap:LiabilityForUncertainTaxPositionsNoncurrent


Liability
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282018-06-292017-06-30
Value750743724715720716708698699508493
Percentage of LiabilityForUncertainTaxPositionsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:LongTermDebtFairValue

wdc:ConvertibleSeniorNotesDueTwoThousandTwentyMember, us-gaap:FairValueInputsLevel2, us-gaap:EstimateOfFairValueFairValueDisclosure


Long
Period End2020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292017-06-30
Value3430333333313434343434
Percentage of LongTermDebtFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wdc:FourPointSeventyFivePercentSeniorUnsecuredNotesDueTwoThousandTwentySix, us-gaap:FairValueInputsLevel2, us-gaap:EstimateOfFairValueFairValueDisclosure


Long
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292017-06-30
Value25562534255324752428225624192351226321991994223222380.0
Percentage of LongTermDebtFairValue0.00.00.07279.48093.36836.47330.37124.27300.06467.65864.76564.76582.40.0

wdc:OnePointFiftyPercentSeniorConvertibleNotesDueTwoThousandTwentyFour, us-gaap:FairValueInputsLevel2, us-gaap:EstimateOfFairValueFairValueDisclosure


Long
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292017-06-30
Value1173114210951043103696610851058986970888102211140.0
Percentage of LongTermDebtFairValue0.00.00.03067.63453.32927.33287.93206.13180.62852.92611.83005.93276.50.0

wdc:TermLoanA1, us-gaap:FairValueInputsLevel2, us-gaap:EstimateOfFairValueFairValueDisclosure


Long
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292017-06-30
Value43464405444344274474441347204774478047714722496850130.0
Percentage of LongTermDebtFairValue0.00.00.013020.614913.313372.714303.014466.715419.414032.413888.214611.814744.10.0

wdc:U.S.TermLoanB4, us-gaap:FairValueInputsLevel2, us-gaap:EstimateOfFairValueFairValueDisclosure


Long
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292017-06-30
Value10941244139315361656164018572167237023812333245124520.0
Percentage of LongTermDebtFairValue0.00.00.04517.65520.04969.75627.36566.77645.27002.96861.87208.87211.80.0

us-gaap:LongTermDebtFairValue us-gaap:DebtInstrument, us-gaap:FairValueByMeasurementBasis

wdc:ConvertibleSeniorNotesDueTwoThousandTwentyMember, us-gaap:CarryingReportedAmountFairValueDisclosure


Long
Period End2020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292017-06-30
Value3534343333333232313130
Percentage of LongTermDebtFairValue102.9113.3103.0100.0100.0106.594.194.191.291.288.2

wdc:FourPointSeventyFivePercentSeniorUnsecuredNotesDueTwoThousandTwentySix, us-gaap:CarryingReportedAmountFairValueDisclosure


Long
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292017-06-30
Value22882287228722862286228522842284228322822282228122800.0
Percentage of LongTermDebtFairValue0.00.00.06723.57620.06924.26921.26921.27364.56711.86711.86708.86705.90.0

wdc:OnePointFiftyPercentSeniorConvertibleNotesDueTwoThousandTwentyFour, us-gaap:CarryingReportedAmountFairValueDisclosure


Long
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292017-06-30
Value1017101010029949879809739659589529449389310.0
Percentage of LongTermDebtFairValue0.00.00.02923.53290.02969.72948.52924.23090.32800.02776.52758.82738.20.0

wdc:TermLoanA1, us-gaap:CarryingReportedAmountFairValueDisclosure


Long
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292017-06-30
Value43274389445145144576463747004762482448894920495149820.0
Percentage of LongTermDebtFairValue0.00.00.013276.515253.314051.514242.414430.315561.314379.414470.614561.814652.90.0

wdc:U.S.TermLoanB4, us-gaap:CarryingReportedAmountFairValueDisclosure


Long
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292017-06-30
Value10931243139315431692169318432168242424302436244224480.0
Percentage of LongTermDebtFairValue0.00.00.04538.25640.05130.35584.86569.77819.47147.17164.77182.47200.00.0

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

us-gaap:FairValueInputsLevel2, us-gaap:EstimateOfFairValueFairValueDisclosure


Long
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292017-06-30
Value916993259484951596249308101151038310430103559971107071085114181
Percentage of LongTermDebtFairValue0.00.00.027985.332080.028206.130651.531463.633645.230455.929326.531491.231914.741708.8

us-gaap:LongTermDebtFairValue us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure


Long
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292017-06-30
Value872589299133937295759629983310212105221058510614106431067213151
Percentage of LongTermDebtFairValue0.00.00.027564.731916.729178.829797.030945.533941.931132.431217.631302.931388.238679.4

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths


Long
Period End2021-07-022017-06-30
Value251246
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths100.0100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree


Long
Period End2021-07-022017-06-302016-07-01
Value1100452357
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree100.0100.0100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo


Long
Period End2021-07-022017-06-302016-07-01
Value5174350254
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo100.0100.0100.0

us-gaap:NotesReceivableNet us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType

us-gaap:NotesReceivableNet

wdc:FactoredReceivables


Notes
Period End2021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282018-06-29
Value60451281131001138531857
Percentage of NotesReceivableNet100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NotesReceivableRelatedParties us-gaap:AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyType

us-gaap:NotesReceivableRelatedParties

wdc:FlashAllianceLtd


Notes
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-01
Value213228197231301423625905878599418944876101114119126138196235
Percentage of NotesReceivableRelatedParties100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wdc:FlashForwardLtd


Notes
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-01
Value561554666597670777663617743584607619700633429406379354248321263
Percentage of NotesReceivableRelatedParties263.4243.0338.1258.4222.6183.7106.168.284.697.5145.2658.51458.3832.9424.8356.1318.5281.0179.7163.8111.9

wdc:FlashPartnersLtd


Notes
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-01
Value1912893302712733354124825516206957377678387373652642321456365
Percentage of NotesReceivableRelatedParties89.7126.8167.5117.390.779.265.953.362.8103.5166.3784.01597.91102.6729.7320.2221.8184.1105.132.127.7

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent


Operating
Period End2021-07-022021-04-022021-01-012020-10-02
Value3.83.84.24.2
Percentage of OperatingLeaseWeightedAverageDiscountRatePercent100.0100.0100.0100.0

us-gaap:OperatingLossCarryforwards us-gaap:IncomeTaxAuthority

us-gaap:OperatingLossCarryforwards

us-gaap:StateAndLocalJurisdiction


Operating
Period End2021-07-022020-07-032019-06-282018-06-292017-06-30
Value369471619850552
Percentage of OperatingLossCarryforwards100.0100.0100.0100.0100.0

wdc:DomesticTaxAuthorityPost2017ActGeneration


Operating
Period End2020-07-032019-06-282018-06-29
Value0.00.0704
Percentage of OperatingLossCarryforwards0.00.082.8

wdc:DomesticTaxAuthorityPre2017ActGeneration


Operating
Period End2021-07-022020-07-032019-06-282018-06-29
Value661676700766
Percentage of OperatingLossCarryforwards179.1143.5113.190.1

us-gaap:OperatingLossCarryforwards us-gaap:IncomeTaxAuthorityName

us-gaap:AdministrationOfTheTreasuryBelgium


Operating
Period End2021-07-022020-07-032019-06-282018-06-292017-06-30
Value721211058661
Percentage of OperatingLossCarryforwards19.525.717.010.111.1

us-gaap:NationalTaxAgencyJapan


Operating
Period End2021-07-022020-07-032019-06-282018-06-292017-06-30
Value111127132141142
Percentage of OperatingLossCarryforwards30.127.021.316.625.7

us-gaap:StateAdministrationOfTaxationChina


Operating
Period End2021-07-022020-07-032019-06-282018-06-292017-06-30
Value5110313312953
Percentage of OperatingLossCarryforwards13.821.921.515.29.6

us-gaap:TaxAuthoritySpain


Operating
Period End2021-07-022020-07-032019-06-282018-06-29
Value12485256
Percentage of OperatingLossCarryforwards3.310.28.46.6

wdc:TaxAuthorityMalaysia


Operating
Period End2021-07-022020-07-03
Value120167
Percentage of OperatingLossCarryforwards32.535.5

us-gaap:OperatingLossCarryforwardsValuationAllowance us-gaap:IncomeTaxAuthority

us-gaap:OperatingLossCarryforwardsValuationAllowance

us-gaap:DomesticCountry


Operating
Period End2021-07-022020-07-032019-06-282018-06-29
Value134128128448
Percentage of OperatingLossCarryforwardsValuationAllowance100.0100.0100.0100.0

us-gaap:StateAndLocalJurisdiction


Operating
Period End2021-07-022020-07-032019-06-282018-06-29
Value245349361435
Percentage of OperatingLossCarryforwardsValuationAllowance182.8272.7282.097.1

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent


Pension
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-06-282019-03-292018-12-282018-06-29
Value132153160153151666872555760
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PurchaseObligation

us-gaap:PurchaseObligation


Purchase
Period End2021-07-022021-04-022021-01-012020-10-02
Value1779183920892107
Percentage of PurchaseObligation100.0100.0100.0100.0

us-gaap:PurchaseObligationDueAfterFifthYear

us-gaap:PurchaseObligationDueAfterFifthYear


Purchase
Period End2021-07-02
Value170
Percentage of PurchaseObligationDueAfterFifthYear100.0

us-gaap:PurchaseObligationDueInFifthYear

us-gaap:PurchaseObligationDueInFifthYear


Purchase
Period End2021-07-02
Value20
Percentage of PurchaseObligationDueInFifthYear100.0

us-gaap:PurchaseObligationDueInNextTwelveMonths

us-gaap:PurchaseObligationDueInNextTwelveMonths


Purchase
Period End2021-07-022021-04-022021-01-012020-10-02
Value630583613596
Percentage of PurchaseObligationDueInNextTwelveMonths100.0100.0100.0100.0

us-gaap:PurchaseObligationDueInSecondYear

us-gaap:PurchaseObligationDueInSecondYear


Purchase
Period End2021-07-022021-04-022021-01-012020-10-02
Value530498562523
Percentage of PurchaseObligationDueInSecondYear100.0100.0100.0100.0

us-gaap:PurchaseObligationDueInThirdYear

us-gaap:PurchaseObligationDueInThirdYear


Purchase
Period End2021-07-022021-04-022021-01-012020-10-02
Value281314350322
Percentage of PurchaseObligationDueInThirdYear100.0100.0100.0100.0

us-gaap:PurchaseObligationFutureMinimumPaymentsRemainderOfFiscalYear

us-gaap:PurchaseObligationFutureMinimumPaymentsRemainderOfFiscalYear


Purchase
Period End2021-04-022021-01-012020-10-02
Value106226328
Percentage of PurchaseObligationFutureMinimumPaymentsRemainderOfFiscalYear100.0100.0100.0

us-gaap:RestructuringReserve us-gaap:RestructuringCostAndReserve, us-gaap:RestructuringPlan

us-gaap:RestructuringReserve

us-gaap:ContractTermination, wdc:BusinessRealignmentActivities


Restructuring
Period End2020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012015-07-032014-06-27
Value0.00.01.01.08.08.0115.05.06.07.07.05.05.02.03.03.00.00.0
Percentage of RestructuringReserve0.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0

us-gaap:ContractTermination, wdc:ClosureofForeignManufacturingFacilities


Restructuring
Period End2020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-06-29
Value0.00.00.01.02.02.03.00.0
Percentage of RestructuringReserve0.00.00.0100.025.025.027.30.0

us-gaap:OneTimeTerminationBenefits, wdc:BusinessRealignmentActivities


Restructuring
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012015-07-032014-06-27
Value2.03.07.013131428243777475631182118182010.0321110.00.0
Percentage of RestructuringReserve0.00.00.00.00.00.02800.02400.0462.5962.5427.31120.0620.0300.0300.0257.1360.0400.0500.01066.7366.70.00.0

us-gaap:OneTimeTerminationBenefits, wdc:ClosureofForeignManufacturingFacilities


Restructuring
Period End2020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292017-06-30
Value7.07.0111430575960560.0
Percentage of RestructuringReserve0.00.01100.01400.0375.0712.5536.41200.01120.00.0

us-gaap:RestructuringReserve us-gaap:RestructuringPlan

wdc:BusinessRealignmentActivities


Restructuring
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012015-07-032014-06-27
Value2.03.07.013131429254585586136242825232512351410.00.0
Percentage of RestructuringReserve0.00.00.00.00.00.02900.02500.0562.51062.5527.31220.0720.0400.0400.0357.1460.0500.0600.01166.7466.70.00.0

wdc:ClosureofForeignManufacturingFacilities


Restructuring
Period End2020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-06-29
Value7.07.0111532596256
Percentage of RestructuringReserve0.00.01100.01500.0400.0737.5563.61120.0

us-gaap:RetainedEarningsUndistributedEarningsFromEquityMethodInvestees

us-gaap:RetainedEarningsUndistributedEarningsFromEquityMethodInvestees


Retained
Period End2021-07-022020-07-032019-06-282018-06-292017-06-302016-07-01
Value3324148.05.02.0
Percentage of RetainedEarningsUndistributedEarningsFromEquityMethodInvestees100.0100.0100.0100.0100.0100.0

us-gaap:RevenueRemainingPerformanceObligation

us-gaap:RevenueRemainingPerformanceObligation


Revenue
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-28
Value718191102112122140182191204220263
Percentage of RevenueRemainingPerformanceObligation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber

wdc:RestrictedStockUnitsAndPerformanceShareUnits


Share
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-06-302016-07-052016-07-012015-07-03
Value16161617131313131112151512111315153.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

wdc:RestrictedStockUnitsAndPerformanceShareUnits


Share
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-06-302016-07-052016-07-012015-07-03
Value50.1249.4249.4549.760.9261.5660.8861.0162.0762.6359.5159.6258.3157.6245.0141.9241.9273.8
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant


Share
Period End2021-07-022020-07-032019-06-282018-06-292017-06-302016-07-012015-07-032014-06-272013-06-282012-06-292011-07-01
Value3940454151662129362728
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant us-gaap:AwardType

wdc:EmployeeStockPurchasePlan


Share
Period End2021-07-022020-07-032019-06-282018-06-29
Value6.09.0125.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant15.422.526.712.2

wdc:OutstandingAwardsAndSharesAvailableForAward


Share
Period End2021-07-022020-07-032019-06-282018-06-292017-06-302016-07-012015-07-032014-06-272013-06-28
Value333133364456162328
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant84.677.573.387.886.385.477.680.078.5

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber


Share
Period End2021-04-022021-01-012020-10-02
Value1600000.01800000.02500000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice


Share
Period End2021-04-022021-01-012020-10-02
Value72.2669.7569.21
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue


Share
Period End2021-07-022021-04-022021-01-012017-03-312016-12-302016-09-302016-07-01
Value15179.024518714060
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue100.0100.0100.0100.0100.0100.0100.0

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1


Sharebased
Period End2021-04-022021-01-01
Value179.0
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1100.0100.0

us-gaap:StandardProductWarrantyAccrual

us-gaap:StandardProductWarrantyAccrual


Standard
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-052016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-06-302011-04-012010-12-312010-10-012010-07-022010-04-022010-01-012009-10-022009-07-032008-06-27
Value363357366391408383378357350331337323318305304302311323313277279279221225218221221223201182173190195187192211230260278156173170174176173170164155132123114
Percentage of StandardProductWarrantyAccrual100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StandardProductWarrantyAccrualCurrent

us-gaap:StandardProductWarrantyAccrualCurrent


Standard
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292017-06-30
Value175163166191205185193182188179183169168186
Percentage of StandardProductWarrantyAccrualCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StandardProductWarrantyAccrualNoncurrent

us-gaap:StandardProductWarrantyAccrualNoncurrent


Standard
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012015-07-032014-06-272013-06-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-07-02
Value1881942002002031981851751621521541541501101101221251271231071077163738984323838404141
Percentage of StandardProductWarrantyAccrualNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TaxCreditCarryforwardAmount

us-gaap:TaxCreditCarryforwardAmount


Tax
Period End2021-07-022020-07-032019-06-282018-06-292017-06-302016-07-012015-07-032014-06-272013-06-282012-06-292011-07-012010-07-02
Value461438410448283264167155123154145137
Percentage of TaxCreditCarryforwardAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TaxCreditCarryforwardAmount us-gaap:IncomeTaxAuthority

us-gaap:DomesticCountry


Tax
Period End2021-07-022020-07-032019-06-282018-06-29
Value565859155
Percentage of TaxCreditCarryforwardAmount12.113.214.434.6

us-gaap:StateAndLocalJurisdiction


Tax
Period End2021-07-022020-07-032019-06-282018-06-29
Value648619578550
Percentage of TaxCreditCarryforwardAmount140.6141.3141.0122.8

us-gaap:TaxCreditCarryforwardValuationAllowance us-gaap:IncomeTaxAuthority

us-gaap:TaxCreditCarryforwardValuationAllowance

us-gaap:DomesticCountry


Tax
Period End2021-07-022020-07-032019-06-282018-06-29
Value27272839
Percentage of TaxCreditCarryforwardValuationAllowance100.0100.0100.0100.0

us-gaap:StateAndLocalJurisdiction


Tax
Period End2021-07-022020-07-032019-06-282018-06-29
Value2.02.02.0550
Percentage of TaxCreditCarryforwardValuationAllowance7.47.47.11410.3

us-gaap:TreasuryStockShares

us-gaap:TreasuryStockShares


Treasury
Period End2021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-29
Value6.06.08.010.012131417192123161315171821242828293031302927272624252423201815
Percentage of TreasuryStockShares100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued

us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued


Unrecognized
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032019-06-282018-06-292017-06-302016-07-012015-07-032014-06-27
Value13813314614113712311089755544
Percentage of UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:VariableInterestEntityEntityMaximumLossExposureAmount us-gaap:BalanceSheetLocation, us-gaap:RelatedPartyTransaction

us-gaap:VariableInterestEntityEntityMaximumLossExposureAmount

us-gaap:EquityMethodInvestments, us-gaap:EquityMethodInvestee


Variable
Period End2021-04-022021-01-01
Value623665
Percentage of VariableInterestEntityEntityMaximumLossExposureAmount100.0100.0

us-gaap:NotesReceivable, us-gaap:EquityMethodInvestee


Variable
Period End2021-04-022021-01-01
Value10711193
Percentage of VariableInterestEntityEntityMaximumLossExposureAmount171.9179.4

us-gaap:VariableInterestEntityEntityMaximumLossExposureAmount us-gaap:RelatedPartyTransaction

us-gaap:EquityMethodInvestee


Variable
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-01
Value427143434627432543044452452946824563409838743623361035883054268626822362221024822356
Percentage of VariableInterestEntityEntityMaximumLossExposureAmount0.0697.1695.80.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:VariableInterestEntityEntityMaximumLossExposureAmount us-gaap:RelatedPartyTransaction, wdc:BalanceSheetInformation

us-gaap:EquityMethodInvestee, us-gaap:EquityMethodInvestments


Variable
Period End2021-07-022020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-01
Value621647631622621625619600598578590613578577578579551637608
Percentage of VariableInterestEntityEntityMaximumLossExposureAmount0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:EquityMethodInvestee, us-gaap:NotesReceivable


Variable
Period End2021-07-022020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-01
Value965109912441535170020042172180317201450151515471267885762712531580563
Percentage of VariableInterestEntityEntityMaximumLossExposureAmount0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

wdc:CommonStockValues

wdc:CommonStockValues


Common
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-07-02
Value3000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.03000000.02000000.02000000.02000000.02000000.02000000.02000000.0
Percentage of CommonStockValues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wdc:EntityWideAccountsReceivableMajorCustomerPercentage us-gaap:MajorCustomers

wdc:EntityWideAccountsReceivableMajorCustomerPercentage

wdc:KingstonTechnologyCompany


Entity
Period End2021-07-022020-07-03
Value12.010.0
Percentage of EntityWideAccountsReceivableMajorCustomerPercentage100.0100.0

wdc:EntityWideAccountsReceivableMajorCustomerPercentage us-gaap:MajorCustomers, us-gaap:ConcentrationRiskByBenchmark, us-gaap:ConcentrationRiskByType

wdc:KingstonTechnologyCompany, us-gaap:AccountsReceivable, us-gaap:CustomerConcentrationRisk


Entity
Period End2020-07-03
Value0.1
Percentage of EntityWideAccountsReceivableMajorCustomerPercentage1.0

wdc:GuaranteeObligationsMaximumExposureRemainderOfFiscalYear us-gaap:GuaranteeObligationsByNature, us-gaap:RelatedPartyTransactionsByRelatedParty

wdc:GuaranteeObligationsMaximumExposureRemainderOfFiscalYear

wdc:PaymentOfPrincipalAmortization, us-gaap:EquityMethodInvestee


Guarantee
Period End2021-04-022021-01-012020-10-022020-07-03
Value146294407497
Percentage of GuaranteeObligationsMaximumExposureRemainderOfFiscalYear100.0100.0100.0100.0

wdc:PurchaseOptionExercisePrice, us-gaap:EquityMethodInvestee


Guarantee
Period End2021-04-022021-01-012020-10-022020-07-03
Value226380109
Percentage of GuaranteeObligationsMaximumExposureRemainderOfFiscalYear15.121.419.721.9

wdc:GuaranteeObligationsMaximumExposureRemainderOfFiscalYear us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:EquityMethodInvestee


Guarantee
Period End2021-04-022021-01-012020-10-022020-07-03
Value168357487606
Percentage of GuaranteeObligationsMaximumExposureRemainderOfFiscalYear115.1121.4119.7121.9

wdc:GuaranteeObligationsMaximumExposureThereafter us-gaap:GuaranteeObligationsByNature, us-gaap:RelatedPartyTransactionsByRelatedParty

wdc:GuaranteeObligationsMaximumExposureThereafter

wdc:PaymentOfPrincipalAmortization, us-gaap:EquityMethodInvestee


Guarantee
Period End2021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-29
Value4528154.023124.00.0454.03.05.0
Percentage of GuaranteeObligationsMaximumExposureThereafter100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0

wdc:PurchaseOptionExercisePrice, us-gaap:EquityMethodInvestee


Guarantee
Period End2021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-29
Value136110723411074390.0118212237
Percentage of GuaranteeObligationsMaximumExposureThereafter302.2392.9480.0850.0478.3616.7975.00.0262.2525.0733.3740.0

wdc:GuaranteeObligationsMaximumExposureThereafter us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:EquityMethodInvestee


Guarantee
Period End2021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-29
Value181138873813386430.0163252542
Percentage of GuaranteeObligationsMaximumExposureThereafter402.2492.9580.0950.0578.3716.71075.00.0362.2625.0833.3840.0

wdc:GuaranteeObligationsMaximumExposureYearFive us-gaap:GuaranteeObligationsByNature, us-gaap:RelatedPartyTransactionsByRelatedParty

wdc:GuaranteeObligationsMaximumExposureYearFive

wdc:PaymentOfPrincipalAmortization, us-gaap:EquityMethodInvestee


Guarantee
Period End2021-07-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-01
Value64361239874518149423824152910.020333943
Percentage of GuaranteeObligationsMaximumExposureYearFive100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wdc:PurchaseOptionExercisePrice, us-gaap:EquityMethodInvestee


Guarantee
Period End2021-07-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-01
Value162111120120121120288864280.021464870102109105
Percentage of GuaranteeObligationsMaximumExposureYearFive253.1308.397.6122.4163.5235.334.6179.6152.473.70.0140.0158.6480.0350.0309.1279.5244.2

wdc:GuaranteeObligationsMaximumExposureYearFive us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:EquityMethodInvestee


Guarantee
Period End2021-07-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-01
Value226147243218195171109137106662436755890135148148
Percentage of GuaranteeObligationsMaximumExposureYearFive353.1408.3197.6222.4263.5335.3134.6279.6252.4173.7100.0240.0258.6580.0450.0409.1379.5344.2

wdc:GuaranteeObligationsMaximumExposureYearFour us-gaap:GuaranteeObligationsByNature, us-gaap:RelatedPartyTransactionsByRelatedParty

wdc:GuaranteeObligationsMaximumExposureYearFour

wdc:PaymentOfPrincipalAmortization, us-gaap:EquityMethodInvestee


Guarantee
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-01
Value1159677551562592151771371851121101129480967193108125120
Percentage of GuaranteeObligationsMaximumExposureYearFour100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wdc:PurchaseOptionExercisePrice, us-gaap:EquityMethodInvestee


Guarantee
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-01
Value107108116113121676767674822477081987610497587357
Percentage of GuaranteeObligationsMaximumExposureYearFour93.0112.5150.6205.577.625.931.237.948.925.919.642.762.586.2122.579.2146.5104.353.758.447.5

wdc:GuaranteeObligationsMaximumExposureYearFour us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:EquityMethodInvestee


Guarantee
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-01
Value222204193168277326282244204233134157182175178172175190166198177
Percentage of GuaranteeObligationsMaximumExposureYearFour193.0212.5250.6305.5177.6125.9131.2137.9148.9125.9119.6142.7162.5186.2222.5179.2246.5204.3153.7158.4147.5

wdc:GuaranteeObligationsMaximumExposureYearOne us-gaap:GuaranteeObligationsByNature, us-gaap:RelatedPartyTransactionsByRelatedParty

wdc:GuaranteeObligationsMaximumExposureYearOne

wdc:PaymentOfPrincipalAmortization, us-gaap:EquityMethodInvestee


Guarantee
Period End2021-07-022021-04-022021-01-012020-10-022020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-01
Value560531524469128239343419106294280341307267275257268269298287
Percentage of GuaranteeObligationsMaximumExposureYearOne100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wdc:PurchaseOptionExercisePrice, us-gaap:EquityMethodInvestee


Guarantee
Period End2021-07-022021-04-022021-01-012020-10-022020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-01
Value48485251203556669.0343324150.010.01722477161
Percentage of GuaranteeObligationsMaximumExposureYearOne8.69.09.910.915.614.616.315.88.511.611.87.04.90.03.66.68.217.523.821.3

wdc:GuaranteeObligationsMaximumExposureYearOne us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:EquityMethodInvestee


Guarantee
Period End2021-07-022021-04-022021-01-012020-10-022020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-01
Value608579576520148274399485115328313365322267285274290316369348
Percentage of GuaranteeObligationsMaximumExposureYearOne108.6109.0109.9110.9115.6114.6116.3115.8108.5111.6111.8107.0104.9100.0103.6106.6108.2117.5123.8121.3

wdc:GuaranteeObligationsMaximumExposureYearThree us-gaap:GuaranteeObligationsByNature, us-gaap:RelatedPartyTransactionsByRelatedParty

wdc:GuaranteeObligationsMaximumExposureYearThree

wdc:PaymentOfPrincipalAmortization, us-gaap:EquityMethodInvestee


Guarantee
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-01
Value290260238194304370323284235271207197201188163184154173184203186
Percentage of GuaranteeObligationsMaximumExposureYearThree100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wdc:PurchaseOptionExercisePrice, us-gaap:EquityMethodInvestee


Guarantee
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-01
Value11711712612367494950501061219510411685826459715948
Percentage of GuaranteeObligationsMaximumExposureYearThree40.345.052.963.422.013.215.217.621.339.158.548.251.761.752.144.641.634.138.629.125.8

wdc:GuaranteeObligationsMaximumExposureYearThree us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:EquityMethodInvestee


Guarantee
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-01
Value407377364317371419372334285377328292305304248266218232255262234
Percentage of GuaranteeObligationsMaximumExposureYearThree140.3145.0152.9163.4122.0113.2115.2117.6121.3139.1158.5148.2151.7161.7152.1144.6141.6134.1138.6129.1125.8

wdc:GuaranteeObligationsMaximumExposureYearTwo us-gaap:GuaranteeObligationsByNature, us-gaap:RelatedPartyTransactionsByRelatedParty

wdc:GuaranteeObligationsMaximumExposureYearTwo

wdc:PaymentOfPrincipalAmortization, us-gaap:EquityMethodInvestee


Guarantee
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-01
Value445419409356414450406369321360294282218212178190219231230247225
Percentage of GuaranteeObligationsMaximumExposureYearTwo100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wdc:PurchaseOptionExercisePrice, us-gaap:EquityMethodInvestee


Guarantee
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-01
Value65657069501081081101096467614540343424150.01119
Percentage of GuaranteeObligationsMaximumExposureYearTwo14.615.517.119.412.124.026.629.834.017.822.821.620.618.919.117.911.06.50.04.58.4

wdc:GuaranteeObligationsMaximumExposureYearTwo us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:EquityMethodInvestee


Guarantee
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-01
Value510484479425464558514479430424361343263252212224243246230258244
Percentage of GuaranteeObligationsMaximumExposureYearTwo114.6115.5117.1119.4112.1124.0126.6129.8134.0117.8122.8121.6120.6118.9119.1117.9111.0106.5100.0104.5108.4

wdc:IncomeTaxExaminationAdditionalTax us-gaap:IncomeTaxAuthorityName, us-gaap:TaxPeriod

wdc:IncomeTaxExaminationAdditionalTax

us-gaap:InternalRevenueServiceIRS, wdc:TaxYears2013Through2015


Income
Period End2021-07-022020-09-30
Value343271
Percentage of IncomeTaxExaminationAdditionalTax100.0100.0

wdc:InvestmentFundingCommitments

wdc:InvestmentFundingCommitments


Investment
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-29
Value50.050.050.050.00.50.50.50.50.50.50.50.50.50.50.50.5
Percentage of InvestmentFundingCommitments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wdc:InvestmentFundingCommitments us-gaap:Range, wdc:EquityMethodInvestorName

srt:Maximum, wdc:WesternDigitalCorp


Investment
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-28
Value50.050.050.050.00.50.50.50.50.50.50.5
Percentage of InvestmentFundingCommitments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:Minimum, wdc:WesternDigitalCorp


Investment
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-28
Value49.949.949.949.90.4990.4990.4990.4990.4990.4990.499
Percentage of InvestmentFundingCommitments99.899.899.899.899.899.899.899.899.899.899.8

wdc:LesseeOperatingLeaseLiabilityToBePaidAfterYearFour

wdc:LesseeOperatingLeaseLiabilityToBePaidAfterYearFour


Lessee
Period End2021-04-022021-01-012020-10-02
Value147147144
Percentage of LesseeOperatingLeaseLiabilityToBePaidAfterYearFour100.0100.0100.0

wdc:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFourAndThereafter

wdc:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFourAndThereafter


Long
Period End2021-07-02
Value2300
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFourAndThereafter100.0

wdc:NotesReceivableAndInvestmentsInRelatedParties

wdc:NotesReceivableAndInvestmentsInRelatedParties


Notes
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012015-07-03
Value1586169418581746187521572321262927912403231820282105216018451462134012911082121711710.0
Percentage of NotesReceivableAndInvestmentsInRelatedParties100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

wdc:NotesReceivableAndInvestmentsInRelatedParties us-gaap:AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyType

us-gaap:EquityMethodInvestee


Notes
Period End2021-07-022021-04-022021-01-012020-10-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-01
Value158616941858174618752157232126292791240323182028210521601845146213401291108212171171
Percentage of NotesReceivableAndInvestmentsInRelatedParties100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wdc:OtherCommitmentRemainingCommittedPrepayments us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

wdc:OtherCommitmentRemainingCommittedPrepayments

wdc:FlashVentures


Other
Period End2021-07-022021-04-022021-01-012020-10-02
Value77108149178
Percentage of OtherCommitmentRemainingCommittedPrepayments100.0100.0100.0100.0

wdc:OtherMiscellaneousLiabilitiesNoncurrent

wdc:OtherMiscellaneousLiabilitiesNoncurrent


Other
Period End2021-04-022021-01-012020-10-022020-07-03
Value844893885881
Percentage of OtherMiscellaneousLiabilitiesNoncurrent100.0100.0100.0100.0

wdc:OtherMiscellaniousLiabilitiesNoncurrent

wdc:OtherMiscellaniousLiabilitiesNoncurrent


Other
Period End2021-07-022020-07-032020-04-032020-01-032019-10-042019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-06-30
Value63388190690592871312481289107694094410131180
Percentage of OtherMiscellaniousLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wdc:PartnersOwnershipInVentureBusiness dei:LegalEntity, us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

wdc:PartnersOwnershipInVentureBusiness

wdc:UnissoftWuxiGroupCoLtd., wdc:UnisVenture


Partners
Period End2021-07-022021-04-022021-01-012020-10-022019-06-282018-06-29
Value51.051.051.051.00.510.51
Percentage of PartnersOwnershipInVentureBusiness100.0100.0100.0100.0100.0100.0

wdc:RatioOfTotalAdjustedEBITDAToInterestExpenseMinimum us-gaap:DebtInstrument

wdc:RatioOfTotalAdjustedEBITDAToInterestExpenseMinimum

us-gaap:RevolvingCreditFacility


Ratio
Period End2021-07-02
Value3.5
Percentage of RatioOfTotalAdjustedEBITDAToInterestExpenseMinimum100.0

wdc:UnrecognizedTaxBenefitsPayable

wdc:UnrecognizedTaxBenefitsPayable


Unrecognized
Period End2021-04-022021-01-012020-10-02
Value743724715
Percentage of UnrecognizedTaxBenefitsPayable100.0100.0100.0

Line plots across dimensions of each concept


us-gaap:SharesIssued
us-gaap:StatementEquityComponents
(None,)
Shares Issuedus-gaap: Statement Equity Components
TTM Greenblatt ROC
_
(None,)
T T M  Greenblatt  R O C_
us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:AwardType
(None,)
Allocated Share Based Compensation Expenseus-gaap: Award Type
us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:IncomeStatementLocation
(None,)
Allocated Share Based Compensation Expenseus-gaap: Income Statement Location
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ProductOrService
(None,)
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Product Or Service
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
wdc:FormFactor
(None,)
Revenue From Contract With Customer Excluding Assessed Taxwdc: Form Factor
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:StatementGeographical
(None,)
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Statement Geographical
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
Stockholders Equityus-gaap: Statement Equity Components
us-gaap:NoncurrentAssets
us-gaap:StatementGeographical
(None,)
Noncurrent Assetsus-gaap: Statement Geographical
us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType
(None,)
Property Plant And Equipment Grossus-gaap: Property Plant And Equipment By Type
us-gaap:FiniteLivedIntangibleAssetsNet
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
(None,)
Finite Lived Intangible Assets Netus-gaap: Finite Lived Intangible Assets By Major Class
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
Stockholders Equityus-gaap: Statement Equity Components