NLOK


Line plots across dimensions of each concept
Tables

Table of contents



us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesOutstanding
us-gaap:StatementEquityComponents

us-gaap:CommonStockSharesAuthorized

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:IncomeLossFromContinuingOperationsPerBasicShare

us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ProductOrService
us-gaap:StatementGeographical
us-gaap:TimingOfTransferOfGoodOrService

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax

us-gaap:Revenues

us-gaap:CostOfRevenue

us-gaap:GrossProfit

us-gaap:OperatingExpenses

us-gaap:ResearchAndDevelopmentExpense

us-gaap:GeneralAndAdministrativeExpense

us-gaap:SellingAndMarketingExpense

us-gaap:OperatingIncomeLoss

us-gaap:InterestAndDebtExpense

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:IncomeLossFromContinuingOperations

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:NonoperatingIncomeExpense

us-gaap:IncomeTaxExpenseBenefit
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:Assets

us-gaap:Liabilities

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:AssetsCurrent

us-gaap:Cash

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:ShortTermInvestments

us-gaap:AccountsReceivableNetCurrent

us-gaap:OtherAssetsCurrent

us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:PropertyPlantAndEquipmentNet
us-gaap:StatementGeographical

us-gaap:Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:FiniteLivedIntangibleAssetsNet
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:DeferredTaxAssetsLiabilitiesNet

us-gaap:OtherAssetsNoncurrent

us-gaap:LiabilitiesCurrent

us-gaap:LongTermDebtCurrent

us-gaap:AccountsPayableCurrent

us-gaap:TaxesPayableCurrent
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:AccruedIncomeTaxesCurrent

us-gaap:OtherLiabilitiesCurrent

us-gaap:DividendsPayableCurrent

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

us-gaap:LongTermDebtNoncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents
us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
us-gaap:PaymentsOfDividends
us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
us-gaap:PaymentsOfDividends
symc:SharesRepurchaseSettlementPeriod
us-gaap:PaymentsForRepurchaseOfCommonStock
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentInterestRateStatedPercentage
us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

us-gaap:EffectiveIncomeTaxRateContinuingOperations
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:DeferredTaxAssetsNet

us-gaap:UnrecognizedTaxBenefits

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:OperatingLeaseRightOfUseAsset
us-gaap:StatementGeographical

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
nlok:CashNotePayments
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
nlok:PaymentsInLieuOfConversionPriceAdjustments

symc:AdjustmentsToAdditionalPaidInCapitalShortSwingProfitDisgorgement
us-gaap:StatementEquityComponents
us-gaap:DisposalGroupClassification
symc:DiscontinuedOperationTaxEffectRelatedToGlobalIntangibleLowTaxIncome
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
symc:DiscontinuedOperationsTransitionServicesAgreementInConnectionWithSaleIncomeNetOfDirectCosts

symc:OCIBeforeReclassificationsNetOfTaxPortionAttributableToNoncontrollingInterest
us-gaap:LongtermDebtType
symc:PaymentsInLieuOfConversionPriceAdjustments
us-gaap:SubsequentEventType

symc:ReclassificationFromAOCICurrentPeriodNetOfTaxPortionAttributableToNoncontrollingInterest

symc:RestructuringTransitionandothercosts
us-gaap:RestructuringCostAndReserve, us-gaap:StatementOperatingActivitiesSegment
us-gaap:StatementOperatingActivitiesSegment

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation
us-gaap:StatementEquityComponents

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents

us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:IncomeStatementLocation
us-gaap:StatementOperatingActivitiesSegment
us-gaap:LongtermDebtType
us-gaap:AmortizationOfFinancingCostsAndDiscounts

us-gaap:AmortizationOfIntangibleAssets
us-gaap:ConsolidationItems
us-gaap:FiniteLivedIntangibleAssetsByMajorClass, us-gaap:IncomeStatementLocation

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

us-gaap:CapitalizedContractCostAmortization

us-gaap:CommonStockDividendsPerShareDeclared
us-gaap:StatementClassOfStock, us-gaap:SubsequentEventType
us-gaap:SubsequentEventType

us-gaap:ContractWithCustomerLiabilityRevenueRecognized
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentConvertibleConversionRatio1
us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

us-gaap:DeferredCompensationArrangementWithIndividualAllocatedShareBasedCompensationExpense
us-gaap:IncomeStatementLocation
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation, us-gaap:IncomeStatementLocation
us-gaap:DerivativeGainLossOnDerivativeNet
us-gaap:DisposalGroupClassification
us-gaap:DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax
us-gaap:DisposalGroupClassification
us-gaap:DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax
us-gaap:DisposalGroupClassification
us-gaap:DiscontinuedOperationTaxEffectOfDiscontinuedOperation
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DiscontinuedOperationTaxEffectOfIncomeLossFromDisposalOfDiscontinuedOperation
us-gaap:DisposalGroupClassification
us-gaap:DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss
us-gaap:DisposalGroupClassification
us-gaap:DisposalGroupIncludingDiscontinuedOperationRevenue
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DisposalGroupNotDiscontinuedOperationGainLossOnDisposal

us-gaap:DividendsCommonStockCash
us-gaap:StatementEquityComponents

us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense

us-gaap:EquityMethodInvestmentRealizedGainLossOnDisposal

us-gaap:ForeignCurrencyTransactionGainLossBeforeTax
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:GainsLossesOnExtinguishmentOfDebt
us-gaap:LongtermDebtType

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
us-gaap:DisposalGroupClassification
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare

us-gaap:IncomeLossFromEquityMethodInvestments
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:IncomeStatementLocation
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:IncomeTaxReconciliationDispositionOfAssets

us-gaap:IncrementalCommonSharesAttributableToConversionOfDebtSecurities

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
us-gaap:LongtermDebtType
us-gaap:InterestExpenseDebtExcludingAmortization
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:InterestPaidNet

us-gaap:InvestmentIncomeInterest

us-gaap:LeaseCost

us-gaap:NumberOfReportableSegments

us-gaap:OperatingLeaseExpense

us-gaap:OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
us-gaap:StatementEquityComponents
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:PaymentsOfDebtExtinguishmentCosts
us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
us-gaap:StatementEquityComponents
us-gaap:SharesPaidForTaxWithholdingForShareBasedCompensation
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesShareBasedCompensationGross

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensationGross
us-gaap:StatementEquityComponents

us-gaap:StockRepurchasedAndRetiredDuringPeriodValue
us-gaap:StatementEquityComponents

us-gaap:StockRepurchasedDuringPeriodShares
symc:SharesRepurchaseSettlementPeriod
us-gaap:StatementEquityComponents

us-gaap:StockRepurchasedDuringPeriodValue

us-gaap:TreasuryStockAcquiredAverageCostPerShare

us-gaap:VariableLeaseCost

nlok:ContractwithCustomerLiabilityDeferredRevenueCurrent
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
nlok:DebtInstrumentConvertibleConversionRatioBasisOfPrincipalAmount

nlok:DeferredTaxLiabilitiesDiscountonConvertibleDebt
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
nlok:DisposalGroupIncludingDiscontinuedOperationAssetsLiabilities
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
nlok:DisposalGroupIncludingDiscontinuedOperationGoodwillandIntangibleAssetsNet

nlok:DividendPayableNoncurrent
us-gaap:Range
nlok:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardModificationTermPercentageOfUnvestedEquity

symc:ContractwithCustomerLiabilityDeferredRevenueCurrent
us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
symc:DebtInstrumentConvertibleConversionRatioBasisOfPrincipalAmount
us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
symc:DebtInstrumentPrincipalAmountPortionWithConversionPriceAdjustment
us-gaap:DisposalGroupClassification
symc:DisposalGroupIncludingDiscontinuedOperationContractLiabilitiesCurrent
us-gaap:DisposalGroupClassification
symc:DisposalGroupIncludingDiscontinuedOperationContractLiabilitiesNoncurrent

symc:OtherTaxesPayableCurrent
us-gaap:Range
symc:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardModificationTermPercentageOfUnvestedEquity
us-gaap:SubsequentEventType
symc:SpecialDividend

us-gaap:AccountsReceivableGrossCurrent

us-gaap:AccrualForTaxesOtherThanIncomeTaxesCurrent

us-gaap:AccruedIncomeTaxesNoncurrent

us-gaap:AccruedMarketingCostsCurrent

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

us-gaap:AssetsHeldForSaleNotPartOfDisposalGroupCurrent
us-gaap:DisposalGroupClassification
us-gaap:AssetsOfDisposalGroupIncludingDiscontinuedOperation

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

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

us-gaap:CashCashEquivalentsAndShortTermInvestments
us-gaap:StatementGeographical

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations

us-gaap:CashEquivalentsAtCarryingValue

us-gaap:CommonStocksIncludingAdditionalPaidInCapital

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:ContractWithCustomerLiabilityNoncurrent

us-gaap:ContractWithCustomerRefundLiabilityCurrent

us-gaap:DebtInstrumentCarryingAmount
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentConvertibleConversionPrice1
us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentFaceAmount
us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:DebtInstrumentFairValue
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentInterestRateEffectivePercentage

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

us-gaap:DecreaseInUnrecognizedTaxBenefitsIsReasonablyPossible
us-gaap:AwardType, us-gaap:BalanceSheetLocation
us-gaap:DeferredCompensationShareBasedArrangementsLiabilityCurrent

us-gaap:DeferredIncomeTaxAssetsNet

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:DeferredIncomeTaxesAndOtherTaxReceivableCurrent

us-gaap:DeferredTaxAssetsDeferredIncome

us-gaap:DeferredTaxAssetsEquityMethodInvestments

us-gaap:DeferredTaxAssetsGoodwillAndIntangibleAssets

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsPropertyPlantAndEquipment

us-gaap:DeferredTaxAssetsTaxCreditCarryforwards

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther

us-gaap:DeferredTaxLiabilitiesDeferredExpenseReservesAndAccruals

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DeferredTaxLiabilitiesUndistributedForeignEarnings
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation, us-gaap:Position
us-gaap:DerivativeNotionalAmount
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation, us-gaap:Position

us-gaap:DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DisposalGroupIncludingDiscontinuedOperationConsideration
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:SubsequentEventType
us-gaap:DisposalGroupClassification
us-gaap:DisposalGroupIncludingDiscontinuedOperationGoodwillNoncurrent
us-gaap:DisposalGroupClassification
us-gaap:DisposalGroupIncludingDiscontinuedOperationIntangibleAssetsNoncurrent
us-gaap:DisposalGroupClassification
us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities
us-gaap:DisposalGroupClassification
us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentAssets
us-gaap:DisposalGroupClassification
us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentLiabilities

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EquityMethodInvestments

us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueAmount

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsGross
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:IncomeTaxesReceivable

us-gaap:IncomeTaxesReceivableNoncurrent
us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass
us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill

us-gaap:IndefiniteLivedTradeNames

us-gaap:IntangibleAssetsGrossExcludingGoodwill
us-gaap:DisposalGroupClassification
us-gaap:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation

us-gaap:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent

us-gaap:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent

us-gaap:LiabilityForUncertainTaxPositionsNoncurrent
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:LongtermDebtWeightedAverageInterestRate

us-gaap:OperatingLeaseLiability
us-gaap:IncomeTaxAuthority
us-gaap:OperatingLossCarryforwards
us-gaap:IncomeTaxAuthority, us-gaap:IncomeTaxAuthorityName

us-gaap:OtherAssetsMiscellaneousCurrent

us-gaap:OtherAssetsMiscellaneousNoncurrent

us-gaap:OtherSundryLiabilitiesCurrent

us-gaap:PreferredStockSharesAuthorized

us-gaap:PreferredStockSharesIssued

us-gaap:PrepaidExpenseCurrent
us-gaap:RestructuringPlan
us-gaap:RestructuringAndRelatedCostCostIncurredToDate1
us-gaap:RestructuringCostAndReserve, us-gaap:RestructuringPlan
us-gaap:RestructuringAndRelatedCostExpectedCost1
us-gaap:RestructuringPlan
us-gaap:RestructuringCostAndReserve, us-gaap:RestructuringPlan
us-gaap:RestructuringReserve
us-gaap:RestructuringPlan
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
us-gaap:PlanName
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber

us-gaap:StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:StatementEquityComponents

us-gaap:TaxCutsAndJobsActOf2017TransitionTaxForAccumulatedForeignEarningsLiabilityNoncurrent

us-gaap:ValueAddedTaxReceivable

Tables

  2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-282012-09-282012-06-292011-12-302011-09-302011-07-012010-12-312010-10-012010-07-022010-01-01
us-gaap:CommonStockSharesIssued ▇▇▇▇█▇▇▇▇▁▇▁▇▇▇███61462361763063963263162462106100618623615657680684NANANANANANANANANANANANANANANANA
us-gaap:CommonStockSharesOutstanding ▇▇▇▇█▇▇▇▇▁▇▁▇▇▇███61462361763063963263162462106100618623615657680684NANANANANANANANANANANANANANANANA
 us-gaap:CommonStockSharesOutstanding us-gaap:StatementEquityComponents us-gaap:CommonStockIncludingAdditionalPaidInCapital▁▄▂▅█▆▆▄614623617630639632631624NANANA608NANANANANANANANANANANANANANANANANANANANANANA
us-gaap:CommonStockSharesAuthorized █████████▁█▁██████300030003000300030003000300030003000330003300030003000300030003000NANANANANANANANANANANANANANANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding █▄▁647644642NA655630624NA667NA609NA620620620671687691697696697702707707702708720740751765778786805819
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic █▄▁621620619NA637630624NA619NA609NA620620613665682682689690692696699697693702716734745755770782796809
us-gaap:EarningsPerShareBasic █▃▁▁▁▁▁▁▄4.581.270.040.050.1-0.01-0.1-0.099999999999999872.17NA-0.22-0.230.07-0.230.220.260.230.170.320.350.340.410.340.230.310.270.240.330.240.250.170.170.20.37
us-gaap:EarningsPerShareDiluted █▃▁▁▁▁▁▁▄4.41.220.040.050.1-0.01-0.1-0.100000000000000092.01NA-0.22-0.230.07-0.230.220.250.230.170.320.350.340.40.340.220.30.270.240.320.240.250.170.170.20.37
us-gaap:IncomeLossFromContinuingOperationsPerBasicShare ▃▂▂▂▂▂▂▂█▂▁▁▂▁▂▂▂▂▂0.570.060.040.050.09-0.1-0.1-0.099999999999999872.12-0.03-0.18-0.28-0.09-0.110.110.170.080.04-0.04NANANANANANANANANANANANANANANA
us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare ▃▂▁▁▂▁▁▁█0.550.050.040.040.09-0.1-0.1-0.090000000000000081.97NA-0.18-0.28-0.09-0.110.110.170.080.04-0.04NANANANANANANANANANANANANANANA
  2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-282012-09-282012-06-292011-12-302011-09-302011-07-012010-12-312010-10-012010-07-022010-01-01
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax ▁▁▅▄▅▄▄▅▅▅▄▄▄▃▃▃▆▆▇▇█▇▇██▇▇█▇▇▇▆▆▇61860812471189121111751156121012091240117511151041979884909149814991638161717351705163717091791169916681715168116531604148014331548
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService symc:CoreConsumerSecurity▃▁▇▃▃▄▄█▄▇▄364358381367367368369384370379371NANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService symc:LifeLockIdentityandFraudProtection▇▇█▇▇▆▆▆▅▂▁239237255238235233231229214175158NANANANANANANANANANANANANANANANANANANANANANANA
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 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:TimingOfTransferOfGoodOrService us-gaap:TransferredOverTime█▁603596NANA6036001045NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax ▁▁▅▄▅▄▄▅▅▅▄▄▄▃▃▃▆▆▇▇█▇▇██▇▇█▇▇▇▆▆▇61860812471189121111751156121012091240117511151041979884909149814991638161717351705163717091791169916681715168116531604148014331548
us-gaap:Revenues ▁▁▅▄▅▄▄▅▅▅▄▄▄▃▃▃▆▆▇▇█▇▇██▇▇█▇▇▇▆▆▇61860812471189121111751156121012091240117511151041979884909149814991638161717351705163717091791169916681715168116531604148014331548
us-gaap:CostOfRevenue ▁▁▇▇▇▆▆▆▆▆▆▆▆▅▃▃▆▆▇▇█▇▇██▇▇▇▇▆▆▆▇▆103100272279266256249264249262257259235210149150264254279278309283284300299284284271265259264246265258
us-gaap:GrossProfit ▁▁▄▄▄▄▄▄▄▄▄▃▃▃▃▃▆▆▇▇██▇▇█▇▇█▇▇▇▆▆▇515508975910945919907946960978918856806769735759123412451359133914261422135314091492141513841444141613941340123411681290
us-gaap:OperatingExpenses ▁▁▅▅▄▅▅▆▅▆▆▇▅▄▃▃▇▇▇▆▇▆▇██▇▇█▇▇▇▆▆▆45340581880377681790594086498796210348227816296131031104410329911104101711051185119411101115114411311092111110169741013
us-gaap:ResearchAndDevelopmentExpense ▁▁▆▆▅▆▆▆▆▆▆▆▅▅▄▄█▇▇▇█▆▆▇▆▆▆▆▆▆▅▅▅▅7286241236209231237257225241233249204200170174293284267276308252248261249247249242247239220208208210
us-gaap:GeneralAndAdministrativeExpense ▂▂▃▃▃▃▄▅▄▆▅█▄▅▂▁▂▂▂▂▃▂▃▄▄▃▃▃▃▃▂▃▂▂85921081029811413314312216014920413114584689496949310397114119117109110113106105971009292
us-gaap:SellingAndMarketingExpense ▁▁▄▄▃▃▄▃▃▄▄▄▄▃▂▃▅▅▆▆▇▆▆▇█▇▇██▇█▇▆▇178189393378364365386354372434433453377338291308516521563565644608592651730659649711697665704612573635
us-gaap:OperatingIncomeLoss ▄▄▅▄▅▄▃▃▄▃▃▁▃▃▄▅▆▆▇▇▇█▆▆▇▇▆▇▇▇▆▆▅▆621031571071691022696-9-44-178-16-12106146203201327348322405248224298305269300285302229218194277
us-gaap:InterestAndDebtExpense ▅▄▄▅▅▅▅▅▅▅█▇▅▅▂▁▁▁▁▁▁▁▁▂▃▃▂▂▂▃▃▃▃▃51464951535252575857847455522717192020192120202538352927283237363333
us-gaap:OtherNonoperatingIncomeExpense ▃▃▄▃▁▁▁▄▄▂▂▃▄▄▅▃▄▂▄▃▃▃▅▅▅▃▃▃▄▃▁▅▃█-403-4-19-22-1974-8-12-351013-12-11211-12018201-6-22-4-1814144
us-gaap:IncomeLossFromContinuingOperations ▃▂▂▂▂▂▂▂█▂▁▁▂▂▂▂▂▂▂35335263059-8-65-581311-16-110-177-56-69661145325-25NANANANANANANANANANANANANANANA
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest ▆▃▄▃▄▃▂▂█▂▂▁▂▂▄▄▄▄▅▅▅▆▅▄▅▅41055108529728-69-65705-69-134-248-61-5097129189173312333305387251220290265NANANANANANANANA
us-gaap:NonoperatingIncomeExpense █▁▁▁▁▁▁399-20-1-18-23-19NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IncomeTaxExpenseBenefit █▇█▇▇▇▇▇▁▆▇▆▇▇▇▇▇█████▇████▇▇█572082223836-4-7-606-53-24-71-51931153356908969104106372806532-567NANANANA
us-gaap:ComprehensiveIncomeNetOfTax █▃▁▁▁▁▁▁▄▁▁▁▁▁▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂2859795214168-5-84-701350-15-135-13450-142110157128129187202238282247135223202179238194194161119167282
us-gaap:NetIncomeLoss █▃▁▁▁▁▁▁▄▁▁▁▁▁▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂2845785263465-8-60-591342-12-133-14346-144135170156117222244236283241157212193172240182191132136161301
 us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings█▃▁▁▁▁▁2845785263465-8-60NANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-282012-09-282012-06-292011-12-302011-09-302011-07-012010-12-312010-10-012010-07-022010-01-01
us-gaap:Assets █▆▅▅▆▆▆▅▅▅▅█▆▆▁▁▂▂▃▂▃▃▂▃▃▃▃▂▁▁▂18547162291536915938164561623416248157591598015996158681817416760168641153011936124601278413102128831316413258129141315113962134631355612183118351202312163NANANA
us-gaap:Liabilities ▄▄▄▄▄▄▄▅▅▆▆█▆▇▂▁▁▁▂▁▂▂▂▂▃▃▃▂▂▂▂98701011710119102001055010284103301073611022124611247914687128111300277646542656868887192698673267500725776548806836084747448719773797622NANANA
us-gaap:LiabilitiesAndStockholdersEquity █▆▅▅▆▆▆▅▅▅▅█▆▆▁▁▂▂▃▂▃▃▂▃▃▃▃▂▁▁▂18547162291536915938164561623416248157591598015996158681817416760168641153011936124601278413102128831316413258129141315113962134631355612183118351202312163NANANA
us-gaap:StockholdersEquity █▅▃▄▄▄▄▃▃▁▁▁▂▂▁▄▄▄867761125250573859065950591850234958353533893487394938623766539458925896NANANANANANA5156508850024649455345644455NANANA
  2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-282012-09-282012-06-292011-12-302011-09-302011-07-012010-12-312010-10-012010-07-022010-01-01
us-gaap:AssetsCurrent █▆▁▁▂▂▁▂▂▂▁▃▄▃▄▄▂▃▃▃▃▃▃▃▃▃▃▂▂▂▂13571976025613186372434183328349335673687317353246511646967997173466450225255503852885316497051795816520652193886343334843893NANANA
us-gaap:Cash ▅▂▁▂▁▃▃█6483952703763134414721016NANANA1183NANANANANANANANANANANANANANANANANANANANANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue █▁▁▁▁▁▁▁▁▁▁▃▄▄▄▁▂▂▂▂▂▂▂▂▃▃▃▂▁▁▂▁▂▂12649169715321791230921472001177421421826230642475575561061082213309729812764297230673813372737494200400240822327221522902445225627262593
us-gaap:ShortTermInvestments ▁▁▂▄▅▅▆██▃119134162252270289324388390200NA9NA91056260903976821982771053452529533877NANANA
us-gaap:AccountsReceivableNetCurrent ▁▄▃▅▅▄▄▆▅▄▃▅▄▃▂▃▅▄▇▅▅▇▄▅█▅▅▇▅▅▇17159343870872353750280966651446864955745931449073860498272268589257374410817356271009694675976NANANA
us-gaap:OtherAssetsCurrent ▆▃▆▆▆▆██▅▅▅▆▅▅▅▁▂▃▂▂▃▂▃▄▃▂▃▂▂▂▂411289429435422445501522369401399428379391367189250267258249276245261329270244262243240258234NANANA
  2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-282012-09-282012-06-292011-12-302011-09-302011-07-012010-12-312010-10-012010-07-022010-01-01
us-gaap:PropertyPlantAndEquipmentGross ▁▅██▇▇▇▇12961831214221092074201819841990NANANA2055NANANANANANA29333038NANANA2782278327042635245424812457NANANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:Building▁███████213364364364364365365365NANANA425NANANANANANA544540NANANA532520491NANANANANANANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:ComputerEquipment▁▃██▇▆▆▆786917118111591136109510831081NANANA1100NANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:LeaseholdsAndLeaseholdImprovements▁▇██▇▆▆▇178355379372357331328339NANANA336NANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment ▁▅█▇▇▆▆▆9311155135813191283124012261212NANANA1118NANANANANANA1747185718531772173418201807176517091586161215811460NANANA
us-gaap:PropertyPlantAndEquipmentNet ▁▃▄▄▄▄▄▄▅▅▅▅▅▅▅▆██▇▇▇▇▇▇▇▇▇▆▆▆▆365676784790791778758778838868895937893933904986126212011186118111401110109111021130111411061050104310401019NANANA
 us-gaap:PropertyPlantAndEquipmentNet us-gaap:StatementGeographical country:US▁▆██████287565661671681680663677NANANA822NANANANANANANANANANANANANANANANANANANANANANA
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us-gaap:Goodwill ▁▁██████████▆▆▂▂▅▅▅▅▅▅▅▅▅▅▅▅▅▅▄2676267584498450834483288322831983188301863886277227723231463146584758495854586058715856585958415843584258425725573257395479NANANA
us-gaap:IntangibleAssetsNetExcludingGoodwill ▃▃▆▆▆▆▇▇▇███▅▅▁▁▁▁▂▂▂▂▂▂▃▃▃▄▄▄▄111911462137225023292433253226432754284728923004186719614234645725966696907358098528901065115512441379147715911628NANANA
us-gaap:FiniteLivedIntangibleAssetsNet ▂▂▅▅▆▆▆▇▇▇██▆▆▁▁▁▂▂375402128513981475157816771786188319762009212115671661142167275299372NANANANANANANANANANANA1628NANANA
 us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass us-gaap:CustomerRelationships▂▂▅▆▆▆▆▇▇▇██▅▆▁▁▁▂▂31433385991095910071053110511571207126813248438867498162178218NANANANANANANANANANANA960NANANA
 us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass us-gaap:DevelopedTechnologyRights▁▁▅▅▅▆▆▇▇█▇█▇█▁▁▁▂▂59674224845125676206767207647237777087585465104111137NANANANANANANANANANANA263NANANA
us-gaap:DeferredTaxAssetsLiabilitiesNet NANANA253NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsNoncurrent ▄█▆▆▆▆▆▃▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁7091818125512621268127713085261711341121241041101011561019611390112138114109108146145143150155108NANANA
  2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-282012-09-282012-06-292011-12-302011-09-302011-07-012010-12-312010-10-012010-07-022010-01-01
us-gaap:LiabilitiesCurrent ▆▇▃▃▃▂▁▂▂▂▂▆▃▃▂▄▃▄▅▄▄▄▄▅█▇▇▄▄▄▆4713505636083766364334112875317031013287312146223605350933223827372940644233404539794149390742055482500851144169389540514584NANANA
us-gaap:LongTermDebtCurrent ▃█▁▁▂▂7491245494491598597NA001300131078060059900348350350NANANANANANANANANANANANANANA
us-gaap:AccountsPayableCurrent ▂▁▂▃▄▂▃▃▃▃▁▃▂▂▁▅█▃▄▄▅▇▅▆█▆█▆▇▆▆157120135165201158170168181187121180143139115241326184212219230306249274317278326268304260259NANANA
us-gaap:TaxesPayableCurrent █▁208693NA103NANANANANANANANANANANANANANANANANANANANANANANA66652154NANANA
 us-gaap:TaxesPayableCurrent us-gaap:DisposalGroupClassification,us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations us-gaap:DiscontinuedOperationsDisposedOfBySale,symc:EnterpriseSecurity1867NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AccruedIncomeTaxesCurrent NANANA103NANANANA186362230159624NANANANANANANANANANANANANANANANANANANA
us-gaap:OtherLiabilitiesCurrent █▂▂▂▁▁▁▁▁▁▂▂▁▁▁▁▁▁▁▁▁▁▁▁▂▁▁▁▁▁▁2604514525533404378403372368397443477352371333271348348328292275418343318431336311282252261312NANANA
us-gaap:DividendsPayableCurrent NANANA5NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-282012-09-282012-06-292011-12-302011-09-302011-07-012010-12-312010-10-012010-07-022010-01-01
us-gaap:LongTermDebt ▃▃▃▃▄▄▄▄▄▅▅█▇▇▁446844644458445250455039503250265587620962028186713871763204NANANANANANANANANANANANANANANANANANANA
us-gaap:LongTermDebtNoncurrent ▄▃▄▄▅▅▅▅▆▇▇█▇█▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁371932193964396144474442503250265587607962026876635865762605174017401741174517452095209420942094209420932093202520121999NANANANA
us-gaap:OtherLiabilitiesNoncurrent ▂▃▃▅▄▄▅▅▅█▇█▅▆▅▃▄▇▅▅▅▃▁▂▁▃▅▄▄▄▁6772708478808387861039810383898570819483828674626560758480787960NANANA
  2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-282012-09-282012-06-292011-12-302011-09-302011-07-012010-12-312010-10-012010-07-022010-01-01
us-gaap:StockholdersEquity █▅▃▄▄▄▄▃▃▁▁▁▂▂▁▄▄▄867761125250573859065950591850234958353533893487394938623766539458925896NANANANANANA5156508850024649455345644455NANANA
us-gaap:RetainedEarningsAccumulatedDeficit █▆▅▅▆▆▆▅▅▄▄▄▄▄▄▅▅▅▄▄▄▄▃▃▃▂▂▂▁▁▁38121298561933111611001158328436-906-894-761-618-664-520733-153-446-668-912-1316-1599-1840-2285-2494-2687-3418-3658-3840-4181NANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▂▂▁▁▁▁▁▂▂▂▂▂▂▂▂▄▄▅▅▆█▇▇▇██▇▇▇▇▇12-2-12-7-14-17-20415710123-1-37588116119154196182183177202190178160158170178NANANA
  2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-282012-09-282012-06-292011-12-302011-09-302011-07-012010-12-312010-10-012010-07-022010-01-01
  2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-282012-09-282012-06-292011-12-302011-09-302011-07-012010-12-312010-10-012010-07-022010-01-01
us-gaap:NetIncomeLoss █▃▁▁▁▁▁▁▄▁▁▁▁▁▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂2845785263465-8-60-591342-12-133-14346-144135170156117222244236283241157212193172240182191132136161301
 us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings█▃▁▁▁▁▁2845785263465-8-60NANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-282012-09-282012-06-292011-12-302011-09-302011-07-012010-12-312010-10-012010-07-022010-01-01
  2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-282012-09-282012-06-292011-12-302011-09-302011-07-012010-12-312010-10-012010-07-022010-01-01
 us-gaap:PaymentsOfDividends us-gaap:DebtInstrument,us-gaap:LongtermDebtType,us-gaap:SubsequentEventType symc:New2.0ConvertibleNotes,us-gaap:ConvertibleDebt,us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PaymentsOfDividends us-gaap:DebtInstrument,us-gaap:LongtermDebtType,us-gaap:SubsequentEventType symc:New2.5ConvertibleNotes,us-gaap:ConvertibleDebt,us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PaymentsOfDividends us-gaap:DebtInstrument,us-gaap:LongtermDebtType,us-gaap:SubsequentEventType symc:New2.0ConvertibleNotes,us-gaap:ConvertibleDebt,us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PaymentsOfDividends us-gaap:DebtInstrument,us-gaap:LongtermDebtType,us-gaap:SubsequentEventType symc:New2.5ConvertibleNotes,us-gaap:ConvertibleDebt,us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PaymentsForRepurchaseOfCommonStock symc:SharesRepurchaseSettlementPeriod symc:SettledAfterCurrentReportingPeriod18NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-282012-09-282012-06-292011-12-302011-09-302011-07-012010-12-312010-10-012010-07-022010-01-01
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument,us-gaap:LongtermDebtType nlok:A4.2SeniorNotesDueSeptember152020,us-gaap:SeniorNotesNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument,us-gaap:LongtermDebtType,us-gaap:SubsequentEventType nlok:TwoPointZeroConvertibleSeniorNotesDueAugust152022,us-gaap:ConvertibleDebt,us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument,us-gaap:LongtermDebtType,us-gaap:SubsequentEventType symc:New2.0ConvertibleNotes,us-gaap:ConvertibleDebt,us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument,us-gaap:LongtermDebtType,us-gaap:SubsequentEventType symc:New2.5ConvertibleNotes,us-gaap:ConvertibleDebt,us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA

Common Stock Value

Common Stock Par Or Stated Value Per Share

Common Stock Shares Issued

us-gaap:CommonStockSharesIssued



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032014-03-282013-03-292012-03-302011-04-012010-04-02
Value589614623617630639632631624621061006186236156126576806848989099129389721182
Percentage of CommonStockSharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Common Stock Shares Outstanding

us-gaap:CommonStockSharesOutstanding



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032014-03-282013-03-292012-03-302011-04-012010-04-02
Value58961462361763063963263162462106100618623615612657680684684695698724758798
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:CommonStockIncludingAdditionalPaidInCapital



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-03-312016-04-012015-04-03
Value589614623617630639632631624608612684
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.099996.9100.0100.0

Common Stock Shares Authorized

us-gaap:CommonStockSharesAuthorized



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032014-03-282013-03-292012-03-302011-04-012010-04-02
Value30003000300030003000300030003000300030003300033000300030003000300030003000300030003000300030003000
Percentage of CommonStockSharesAuthorized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding



Period End2020-01-032019-10-042019-07-052018-12-282018-09-282018-06-292017-12-292017-06-302016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-282012-09-282012-06-292011-12-302011-09-302011-07-012010-12-312010-10-012010-07-022010-01-01
Value647644642655630624667609620620620671687691697696697702707707702708720740751765778786805819
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic



Period End2020-01-032019-10-042019-07-052018-12-282018-09-282018-06-292017-12-292017-06-302016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-282012-09-282012-06-292011-12-302011-09-302011-07-012010-12-312010-10-012010-07-022010-01-01
Value621620619637630624619609620620613665682682689690692696699697693702716734745755770782796809
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-282012-09-282012-06-292011-12-302011-09-302011-07-012010-12-312010-10-012010-07-022010-01-01
Value4.581.270.040.050.1-0.01-0.1-0.099999999999999872.17-0.22-0.230.07-0.230.220.260.230.170.320.350.340.410.340.230.310.270.240.330.240.250.170.170.20.37
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-282012-09-282012-06-292011-12-302011-09-302011-07-012010-12-312010-10-012010-07-022010-01-01
Value4.41.220.040.050.1-0.01-0.1-0.100000000000000092.01-0.22-0.230.07-0.230.220.250.230.170.320.350.340.40.340.220.30.270.240.320.240.250.170.170.20.37
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Income Loss From Continuing Operations Per Basic Share

us-gaap:IncomeLossFromContinuingOperationsPerBasicShare



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-02
Value0.570.060.040.050.09-0.1-0.1-0.099999999999999872.12-0.03-0.18-0.28-0.09-0.110.110.170.080.04-0.04
Percentage of IncomeLossFromContinuingOperationsPerBasicShare100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Income Loss From Continuing Operations Per Diluted Share

us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-02
Value0.550.050.040.040.09-0.1-0.1-0.090000000000000081.97-0.18-0.28-0.09-0.110.110.170.080.04-0.04
Percentage of IncomeLossFromContinuingOperationsPerDilutedShare100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-282012-09-282012-06-292011-12-302011-09-302011-07-012010-12-312010-10-012010-07-022010-01-01
Value61860812471189121111751156121012091240117511151041979884909149814991638161717351705163717091791169916681715168116531604148014331548
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductOrService

symc:CoreConsumerSecurity



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-30
Value364358381367367368369384370379371
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax58.958.930.630.930.331.331.931.730.630.631.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax58.958.930.630.930.331.331.931.730.630.631.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax symc:CoreConsumerSecurity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

symc:LifeLockIdentityandFraudProtection



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-30
Value239237255238235233231229214175158
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax38.739.020.420.019.419.820.018.917.714.113.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax38.739.020.420.019.419.820.018.917.714.113.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax symc:LifeLockIdentityandFraudProtection100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

symc:Others



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-30
Value1513154145142131130146135136134
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.42.112.312.211.711.111.212.111.211.011.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.42.112.312.211.711.111.212.111.211.011.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax symc:Others100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementGeographical

country:US



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-30
Value433427754635763714688697711713679
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax70.170.260.553.463.060.859.557.658.857.557.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax70.170.260.553.463.060.859.557.658.857.557.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax country:US100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:Americas



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-29
Value4544478071693451447734
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax73.573.564.7142.437.238.063.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax73.573.564.7142.437.238.063.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Americas100.0100.0100.0100.0100.0100.0100.0

srt:AsiaPacific



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-29
Value71691884926969179
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.511.315.141.45.75.915.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.511.315.141.45.75.915.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:AsiaPacific100.0100.0100.0100.0100.0100.0100.0

us-gaap:EMEA



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-30
Value9392252284241234243257270271250
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15.015.120.223.919.919.921.021.222.321.921.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15.015.120.223.919.919.921.021.222.321.921.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:EMEA100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TimingOfTransferOfGoodOrService

us-gaap:TransferredAtPointInTime



Period End2020-01-032019-10-042018-12-282018-09-282018-06-29
Value15121212111
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.42.01.01.09.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.42.01.01.09.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:TransferredAtPointInTime100.0100.0100.0100.0100.0

us-gaap:TransferredOverTime



Period End2020-01-032019-10-042018-12-282018-09-282018-06-29
Value6035966036001045
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax97.698.049.851.190.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax97.698.049.851.190.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:TransferredOverTime100.0100.0100.0100.0100.0

Revenue From Contract With Customer Including Assessed Tax

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-282012-09-282012-06-292011-12-302011-09-302011-07-012010-12-312010-10-012010-07-022010-01-01
Value61860812471189121111751156121012091240117511151041979884909149814991638161717351705163717091791169916681715168116531604148014331548
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Revenues

us-gaap:Revenues



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-282012-09-282012-06-292011-12-302011-09-302011-07-012010-12-312010-10-012010-07-022010-01-01
Value61860812471189121111751156121012091240117511151041979884909149814991638161717351705163717091791169916681715168116531604148014331548
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Sales Revenue Net

Cost Of Revenue

us-gaap:CostOfRevenue



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-282012-09-282012-06-292011-12-302011-09-302011-07-012010-12-312010-10-012010-07-022010-01-01
Value103100272279266256249264249262257259235210149150264254279278309283284300299284284271265259264246265258
Percentage of CostOfRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax16.716.421.823.522.021.821.521.820.621.121.923.222.621.516.916.517.616.917.017.217.816.617.317.616.716.717.015.815.815.716.516.618.516.7

Gross Profit

us-gaap:GrossProfit



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-282012-09-282012-06-292011-12-302011-09-302011-07-012010-12-312010-10-012010-07-022010-01-01
Value515508975910945919907946960978918856806769735759123412451359133914261422135314091492141513841444141613941340123411681290
Percentage of GrossProfit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax83.383.678.276.578.078.278.578.279.478.978.176.877.478.583.183.582.483.183.082.882.283.482.782.483.383.383.084.284.284.383.583.481.583.3

Operating Expenses

us-gaap:OperatingExpenses



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-282012-09-282012-06-292011-12-302011-09-302011-07-012010-12-312010-10-012010-07-022010-01-01
Value45340581880377681790594086498796210348227816296131031104410329911104101711051185119411101115114411311092111110169741013
Percentage of OperatingExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax73.366.665.667.564.169.578.377.771.579.681.992.779.079.871.267.468.869.663.061.363.659.667.569.366.765.366.866.767.366.169.368.668.065.4

Research And Development Expense

us-gaap:ResearchAndDevelopmentExpense



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-282012-09-282012-06-292011-12-302011-09-302011-07-012010-12-312010-10-012010-07-022010-01-01
Value7286241236209231237257225241233249204200170174293284267276308252248261249247249242247239220208208210
Percentage of ResearchAndDevelopmentExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.714.119.319.817.319.720.521.218.619.419.822.319.620.419.219.119.618.916.317.117.814.815.115.313.914.514.914.114.714.513.714.114.513.6

General And Administrative Expense

us-gaap:GeneralAndAdministrativeExpense



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-282012-09-282012-06-292011-12-302011-09-302011-07-012010-12-312010-10-012010-07-022010-01-01
Value85921081029811413314312216014920413114584689496949310397114119117109110113106105971009292
Percentage of GeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.815.18.78.68.19.711.511.810.112.912.718.312.614.89.57.56.36.45.75.85.95.77.07.06.56.46.66.66.36.46.06.86.45.9

Selling And Marketing Expense

us-gaap:SellingAndMarketingExpense



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-282012-09-282012-06-292011-12-302011-09-302011-07-012010-12-312010-10-012010-07-022010-01-01
Value178189393378364365386354372434433453377338291308516521563565644608592651730659649711697665704612573635
Percentage of SellingAndMarketingExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax28.831.131.531.830.131.133.429.330.835.036.940.636.234.532.933.934.434.834.434.937.135.736.238.140.838.838.941.541.540.243.941.440.041.0

Operating Income Loss

us-gaap:OperatingIncomeLoss



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-282012-09-282012-06-292011-12-302011-09-302011-07-012010-12-312010-10-012010-07-022010-01-01
Value621031571071691022696-9-44-178-16-12106146203201327348322405248224298305269300285302229218194277
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.016.912.69.014.08.70.20.57.9-0.7-3.7-16.0-1.5-1.212.016.113.613.420.021.518.623.815.113.116.618.016.117.517.018.314.314.713.517.9

Interest Expense

Interest And Debt Expense

us-gaap:InterestAndDebtExpense



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-282012-09-282012-06-292011-12-302011-09-302011-07-012010-12-312010-10-012010-07-022010-01-01
Value51464951535252575857847455522717192020192120202538352927283237363333
Percentage of InterestAndDebtExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.37.63.94.34.44.44.54.74.84.67.16.65.35.33.11.91.31.31.21.21.21.21.21.52.12.11.71.61.71.92.32.42.32.1

Interest Expense Debt

Interest Expense Long Term Debt

Other Nonoperating Income Expense

us-gaap:OtherNonoperatingIncomeExpense



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-282012-09-282012-06-292011-12-302011-09-302011-07-012010-12-312010-10-012010-07-022010-01-01
Value-403-4-19-22-1974-8-12-351013-12-11211-12018201-6-22-4-1814144
Percentage of OtherNonoperatingIncomeExpense100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.60.00.2-0.3-1.6-1.9-1.60.60.3-0.6-1.0-0.30.51.01.5-0.10.1-0.70.10.10.1-0.11.21.11.10.1-0.4-0.10.1-0.2-1.10.90.12.8

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

Income Loss From Continuing Operations

us-gaap:IncomeLossFromContinuingOperations



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-02
Value35335263059-8-65-581311-16-110-177-56-69661145325-25
Percentage of IncomeLossFromContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax57.15.82.12.54.9-0.7-5.6-4.8108.4-1.3-9.4-15.9-5.4-7.07.512.53.51.7-1.5

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-282012-09-28
Value41055108529728-69-65705-69-134-248-61-5097129189173312333305387251220290265
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax66.39.08.74.48.02.4-6.0-5.458.3-5.6-11.4-22.2-5.9-5.111.014.212.611.519.020.617.622.715.312.916.215.6

Income Loss From Continuing Operations Before Income Taxes Foreign

Nonoperating Income Expense

us-gaap:NonoperatingIncomeExpense



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-29
Value399-20-1-18-23-19
Percentage of NonoperatingIncomeExpense100.0100.00.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax64.6-0.30.0-0.1-1.5-2.0-1.6

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-282012-09-282012-06-292011-12-302011-09-302011-07-01
Value572082223836-4-7-606-53-24-71-51931153356908969104106372806532-567
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.23.36.61.93.13.1-0.3-0.6-50.1-4.3-2.0-6.4-0.51.93.51.72.23.75.55.54.06.10.63.74.04.73.91.9-0.34.1

us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperations, nlok:IDAnalyticsSolutions



Period End2020-01-31
Value86
Percentage of IncomeTaxExpenseBenefit0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperations nlok:IDAnalyticsSolutions0.0

Income Taxes Paid Net

Profit Loss

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-282012-09-282012-06-292011-12-302011-09-302011-07-012010-12-312010-10-012010-07-022010-01-01
Value2859795214168-5-84-701350-15-135-13450-142110157128129187202238282247135223202179238194194161119167282
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax462.6130.81.73.45.6-0.4-7.3-5.8111.7-1.2-11.5-12.04.8-14.512.417.38.58.611.412.513.716.515.17.912.511.910.713.911.511.710.08.011.718.2

Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest

Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest

Net Income Loss

us-gaap:NetIncomeLoss



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-282012-09-282012-06-292011-12-302011-09-302011-07-012010-12-312010-10-012010-07-022010-01-01
Value2845785263465-8-60-591342-12-133-14346-144135170156117222244236283241157212193172240182191132136161301
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax460.4129.12.12.95.4-0.7-5.2-4.9111.0-1.0-11.3-12.84.4-14.715.318.710.47.813.615.113.616.614.79.211.811.410.314.010.811.68.29.211.219.4

us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-29
Value2845785263465-8-60
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax460.4129.12.12.95.4-0.7-5.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.0

Net Income Loss Attributable To Noncontrolling Interest

Assets

us-gaap:Assets



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-312018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-07-042014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-04-02
Value7735185471622915369159381645616234162481657415759159801599615868181741676016864115301176711936124601278413233131021288313164135391325812914131511437913962134631355613020121831183512023127191216311232
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-312018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-07-042014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-04-02
Value772598701011710119102001055010284103301061210736110221246112479146871281113002776480916542656868887298719269867326774275007257765489588806836084747848744871977379811476226684
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets99.953.262.365.864.064.163.363.664.068.169.077.978.680.876.477.167.368.854.852.753.955.254.954.255.757.256.656.258.262.363.162.162.560.361.160.861.463.862.759.5

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-07-042014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-04-02
Value77351854716229153691593816456162341624815759159801599615868181741676016864115301176711936124601278413233131021288313164135391325812914131511437913962134631355613020121831183512023127191216311232
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032014-03-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-04-02
Value1086776112525057385906595059185023495835353389348739493862376636765394589258965935579754215156508850025094464945534564452844554548
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.146.837.734.236.035.936.736.431.931.022.121.419.223.622.932.731.245.247.346.144.842.837.736.937.836.939.138.238.538.035.636.640.5

us-gaap:StatementEquityComponents

nlok:AccumulatedAdjustmentEquityMethodInvestee



Period End2020-04-032019-03-292018-03-30
Value0.0-1000000.00.0
Percentage of StockholdersEquity0.0-0.00.0
Percentage of Assets0.0-0.00.0
Percentage of Assets nlok:AccumulatedAdjustmentEquityMethodInvestee0.00.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-04-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032014-03-28
Value010-1-3-4-4-4-1555466768333
Percentage of StockholdersEquity0.00.00.0-0.0-0.1-0.1-0.1-0.1-0.00.10.10.10.10.20.20.20.10.10.10.10.1
Percentage of Assets0.00.00.0-0.0-0.0-0.0-0.0-0.0-0.00.00.00.00.00.00.10.10.10.10.00.00.0
Percentage of Assets us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome



Period End2020-04-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032014-03-28
Value-16-2-12-7-14-17-20415710123-1-3227588116104194
Percentage of StockholdersEquity-160.0-0.0-0.2-0.1-0.2-0.3-0.30.10.30.20.30.30.1-0.0-0.10.61.41.52.01.83.3
Percentage of Assets-0.2-0.0-0.1-0.0-0.1-0.1-0.10.00.10.00.10.10.0-0.0-0.00.20.60.70.90.81.4
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedTranslationAdjustment



Period End2020-04-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032014-03-28
Value-16-3-12-5-13-15-16816257-1-7-9156980113101191
Percentage of StockholdersEquity-160.0-0.0-0.2-0.1-0.2-0.3-0.30.20.30.10.10.2-0.0-0.2-0.20.41.31.41.91.73.3
Percentage of Assets-0.2-0.0-0.1-0.0-0.1-0.1-0.10.10.10.00.00.0-0.0-0.0-0.10.10.60.60.90.81.4
Percentage of Assets us-gaap:AccumulatedTranslationAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStockIncludingAdditionalPaidInCapital



Period End2020-04-032019-03-292018-03-302017-03-31
Value3356481246914236
Percentage of StockholdersEquity33560.083.993.4121.5
Percentage of Assets43.430.229.823.3
Percentage of Assets us-gaap:CommonStockIncludingAdditionalPaidInCapital0.00.00.00.0

us-gaap:RetainedEarnings



Period End2020-04-032019-03-292018-03-302017-03-31
Value-3330933328-761
Percentage of StockholdersEquity-33300.016.36.5-21.8
Percentage of Assets-43.15.92.1-4.2
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.0

Assets Current

us-gaap:AssetsCurrent



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-07-042014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-04-02
Value3079135719760256131863724341833283493356736873173532465116469679969597173466450225422525550385288565253164970517963155816520652194633388634333484448638934351
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets39.873.260.116.720.022.621.120.522.222.323.020.029.338.838.459.059.160.137.439.341.040.139.140.241.740.138.539.443.941.738.738.535.631.929.029.035.332.038.7

Cash

us-gaap:Cash



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-03-31
Value48364839527037631344147210161183
Percentage of Cash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.23.52.41.82.41.92.72.96.46.5

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-07-042014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-012010-07-022010-04-022010-01-012009-04-032008-04-04
Value217712649169715321791230921472001177421421826230642475575561061085983221330972981287427642972306737073813372737494685420040024082316223272215229029502445225627263029259317931890
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets28.168.210.510.011.214.013.212.311.313.411.414.523.433.333.353.050.818.524.923.321.721.123.123.327.428.828.928.532.630.129.730.124.319.118.719.023.220.10.00.027.00.00.00.0

Short Term Investments

us-gaap:ShortTermInvestments



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-03-312016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-07-042014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-04-02
Value861191341622522702893243883902009910425626090310179768219823777710534625252949533878715
Percentage of ShortTermInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.10.60.81.11.61.61.82.02.52.41.30.00.10.10.40.52.17.17.77.46.47.52.80.60.80.30.40.40.00.20.40.40.30.10.10.10.1

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-312018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-07-042014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-04-02
Value11117159343870872353750283380966651446864955745931455649073860499398272268510078925737441031108173562794010096946751013976856
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.40.93.72.84.44.43.33.15.05.14.23.22.93.63.32.72.74.74.15.94.77.57.55.65.27.46.74.45.77.27.75.54.67.28.35.95.68.08.07.6

Inventory Net

Inventory Finished Goods

Other Assets Current

us-gaap:OtherAssetsCurrent



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-312018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-07-042014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-04-02
Value435411289429435422445501506522369401399428379391367378189250267255258249276290245261329315270244262249243240258262234250
Percentage of OtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.62.21.82.82.72.62.73.13.13.32.32.52.52.42.32.33.23.21.62.02.11.92.01.92.12.11.82.02.52.21.91.81.91.92.02.02.12.11.92.2

Land

Machinery And Equipment Gross

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-03-312016-04-012015-04-032015-01-022014-10-032014-03-282013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-01
Value1078129618312142210920742018198419902055196222792933303829392782283227832704263525892454248124572384
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets13.97.011.313.913.212.612.412.212.611.316.717.222.423.621.721.219.719.920.119.419.920.121.020.418.7

us-gaap:PropertyPlantAndEquipmentByType

us-gaap:Building



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-03-312016-04-012015-04-032015-01-022014-10-032014-03-282013-06-282013-03-292012-12-282012-09-282012-03-30
Value108213364364364364365365365425426542544540539532530520491489
Percentage of PropertyPlantAndEquipmentGross10.016.419.917.017.317.618.118.418.320.721.723.818.517.818.319.118.718.718.218.9
Percentage of Assets1.41.12.22.42.32.22.22.22.32.33.64.14.24.24.04.03.73.73.63.8
Percentage of Assets us-gaap:Building0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ComputerEquipment



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-03-31
Value7467869171181115911361095108310811100
Percentage of PropertyPlantAndEquipmentGross69.260.650.155.155.054.854.354.654.353.5
Percentage of Assets9.64.25.77.77.36.96.76.76.96.1
Percentage of Assets us-gaap:ComputerEquipment0.00.00.00.00.00.00.00.00.00.0

us-gaap:ConstructionInProgress



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-03-312016-04-012015-04-032015-01-022014-10-032014-03-28
Value137313035543729227480938528
Percentage of PropertyPlantAndEquipmentGross0.10.20.41.41.41.72.71.91.51.13.83.53.22.81.0
Percentage of Assets0.00.00.00.20.20.20.30.20.20.10.60.60.70.70.2
Percentage of Assets us-gaap:ConstructionInProgress0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Land



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-03-312016-04-012015-04-032015-01-022014-10-032014-03-28
Value72165656665656566737379797979
Percentage of PropertyPlantAndEquipmentGross0.61.63.53.03.13.13.23.33.33.63.73.52.72.62.7
Percentage of Assets0.10.10.40.40.40.40.40.40.40.40.60.60.60.60.6
Percentage of Assets us-gaap:Land0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:LeaseholdsAndLeaseholdImprovements



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-03-31
Value128178355379372357331328339336
Percentage of PropertyPlantAndEquipmentGross11.913.719.417.717.617.216.416.517.016.4
Percentage of Assets1.71.02.22.52.32.22.02.02.21.8
Percentage of Assets us-gaap:LeaseholdsAndLeaseholdImprovements0.00.00.00.00.00.00.00.00.00.0

us-gaap:OfficeEquipment



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-03-312016-04-012015-04-032015-01-022014-10-032014-03-282013-06-282013-03-292012-12-282012-09-282012-03-30
Value88951231221181171081061109992102126141140141172173173176
Percentage of PropertyPlantAndEquipmentGross8.27.36.75.75.65.65.45.35.54.84.74.54.34.64.85.16.16.26.46.8
Percentage of Assets1.10.50.80.80.70.70.70.70.70.50.80.81.01.11.01.11.21.21.31.4
Percentage of Assets us-gaap:OfficeEquipment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-03-312016-04-012015-04-032015-01-022014-10-032014-07-042014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-04-02
Value8409311155135813191283124012261212111810051074174718571853182317721734182018531807176517091663158616121581153014601299
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets10.95.07.18.88.37.87.67.57.76.28.58.113.314.414.113.513.413.413.812.912.913.112.612.813.013.613.112.012.011.6

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-07-042014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-04-02
Value23836567678479079177875877883886889593789393390495798612621201120511861181114011161110109111021122113011141106110010501043104010501019949
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.12.04.25.15.04.84.84.74.95.25.45.65.25.35.57.88.18.310.19.49.19.19.28.78.28.48.48.47.88.18.38.28.48.68.88.78.38.48.4

us-gaap:StatementGeographical

country:IE



Period End2020-04-032019-03-29
Value3441
Percentage of PropertyPlantAndEquipmentNet14.35.2
Percentage of Assets0.40.3
Percentage of Assets country:IE0.00.0

country:US



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-03-312016-04-012015-04-032014-03-282013-03-292012-03-30
Value174287565661671681680663677822809948871903885
Percentage of PropertyPlantAndEquipmentNet73.178.683.684.384.986.187.487.587.087.784.578.778.080.580.5
Percentage of Assets2.21.53.54.34.24.14.24.14.34.56.97.26.46.36.8
Percentage of Assets country:US0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

nlok:OtherForeignCountries



Period End2020-04-032019-03-29
Value3054
Percentage of PropertyPlantAndEquipmentNet12.66.8
Percentage of Assets0.40.3
Percentage of Assets nlok:OtherForeignCountries0.00.0

us-gaap:NonUs



Period End2020-01-032019-03-29
Value7895
Percentage of PropertyPlantAndEquipmentNet21.412.0
Percentage of Assets0.40.6
Percentage of Assets us-gaap:NonUs0.00.0

Investments In Affiliates Subsidiaries Associates And Joint Ventures

Goodwill

us-gaap:Goodwill



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312017-02-092016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-07-042014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-04-022009-04-03
Value25852676267584498450834483288322831983188301863886275481722772323146314831465847584958475854586058715858585658595841584158435842584258265725573257395494547946054561
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets33.414.416.555.053.050.751.351.252.852.151.954.447.50.043.142.927.326.826.446.945.844.244.745.544.643.344.245.444.440.641.843.443.144.747.048.447.743.245.041.00.0

Intangible Assets Net Excluding Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-07-042014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-04-02
Value1067111911462137225023292433253226432754284728923004186719614234434645725966286696907357688098528909771065115512441337137914771591151116281179
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets13.86.07.113.914.114.215.015.616.817.217.818.216.511.111.63.73.83.94.64.74.75.15.45.65.76.16.66.86.87.68.69.210.311.312.513.211.913.410.5

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-03-282011-04-012010-12-312010-04-02
Value323375402128513981475157816771786188319762009212115671661142149167275299331372471151116281179
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.22.02.58.48.89.09.710.311.311.812.412.711.79.39.81.21.31.42.22.32.52.83.511.913.410.5

us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CustomerRelationships



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-03-282011-04-012010-12-312010-04-02
Value2753143338599109591007105311051157120712681324843886748698162178194218297894960866
Percentage of FiniteLivedIntangibleAssetsNet85.183.782.866.865.165.063.862.861.961.461.163.162.453.853.352.157.758.758.959.558.658.663.159.259.073.5
Percentage of Assets3.61.72.15.65.75.86.26.57.07.27.58.07.35.05.30.60.70.81.31.41.51.72.27.07.97.7
Percentage of Assets us-gaap:CustomerRelationships0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:DevelopedTechnologyRights



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-03-282011-04-012010-12-312010-04-02
Value485967422484512567620676720764723777708758546065104111124137145243263177
Percentage of FiniteLivedIntangibleAssetsNet14.915.716.732.834.634.735.937.037.838.238.736.036.645.245.638.040.338.937.837.137.536.830.816.116.215.0
Percentage of Assets0.60.30.42.73.03.13.53.84.34.54.84.64.34.24.50.50.50.50.80.90.91.01.11.92.21.6
Percentage of Assets us-gaap:DevelopedTechnologyRights0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OtherIntangibleAssets



Period End2020-01-032019-10-042019-07-052019-03-292017-03-312016-04-01
Value224420
Percentage of FiniteLivedIntangibleAssetsNet0.50.50.30.30.10.0
Percentage of Assets0.00.00.00.00.00.0
Percentage of Assets us-gaap:OtherIntangibleAssets0.00.00.00.00.00.0

us-gaap:TradeNames



Period End2020-04-032019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-03-282011-04-012010-12-312010-04-02
Value044445651817141512015681222565562
Percentage of FiniteLivedIntangibleAssetsNet0.00.30.30.30.20.30.30.30.90.80.90.98.50.00.61.82.02.43.24.73.73.45.3
Percentage of Assets0.00.00.00.00.00.00.00.00.10.10.10.10.10.00.00.00.00.10.10.20.40.50.6
Percentage of Assets us-gaap:TradeNames0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Deferred Tax Assets Liabilities Net

us-gaap:DeferredTaxAssetsLiabilitiesNet



Period End2020-04-032019-03-292015-04-032014-03-282013-03-292012-03-302011-04-012010-04-02
Value238253-131-242-167-5003
Percentage of DeferredTaxAssetsLiabilitiesNet100.0100.0100.0100.0100.0100.00.0100.0
Percentage of Assets3.11.6-1.0-1.8-1.2-0.40.00.0

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-312018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-07-042014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-04-02
Value6787091818125512621268127713081333526171134112124104110101103156101961051139011212413811410912410814614512414315015515110890
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.83.811.28.27.97.77.98.18.03.31.10.80.70.70.60.70.90.91.30.80.80.80.90.70.90.91.00.90.80.90.81.11.11.01.21.31.31.20.90.8

Liabilities Current

us-gaap:LiabilitiesCurrent



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-07-042014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-04-02
Value262247135056360837663643341128753170310132873121462236053509332240333827372940644453423340453979430641493907420555625482500851144505416938954051489345843771
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets33.925.431.223.523.622.121.017.720.119.420.519.725.421.520.828.834.332.129.931.833.732.331.430.231.831.330.332.038.739.337.237.734.634.232.933.738.537.733.6

Long Term Debt Current

us-gaap:LongTermDebtCurrent



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-03-28
Value756749124549449159859700130013107806005990003483503503500
Percentage of LongTermDebtCurrent100.0100.0100.0100.0100.0100.0100.00.00.0100.00.0100.0100.0100.0100.00.00.00.0100.0100.0100.0100.00.0
Percentage of Assets9.84.07.73.23.13.63.70.00.00.80.07.24.73.65.20.00.00.02.72.62.72.70.0

Accounts Payable Current

us-gaap:AccountsPayableCurrent



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-07-042014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-04-02
Value87157120135165201158170168181187121180143139115175241326184213212219230282306249274334317278326324268304260260259214
Percentage of AccountsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.10.80.70.91.01.21.01.01.11.11.20.81.00.90.81.01.52.02.61.41.61.61.71.72.12.31.92.12.32.32.12.42.52.22.62.22.02.11.9

Taxes Payable Current

us-gaap:TaxesPayableCurrent



Period End2020-01-032019-10-042019-03-292011-12-302011-09-302011-07-012011-04-012010-12-312010-04-02
Value208693103666521245435
Percentage of TaxesPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets11.20.60.60.50.50.20.20.40.3

us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DiscontinuedOperationsDisposedOfBySale, symc:EnterpriseSecurity



Period End2020-01-03
Value1867
Percentage of TaxesPayableCurrent89.5
Percentage of Assets10.1
Percentage of Assets us-gaap:DiscontinuedOperationsDisposedOfBySale symc:EnterpriseSecurity0.0

Accrued Income Taxes Current

us-gaap:AccruedIncomeTaxesCurrent



Period End2020-04-032019-03-292017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012015-04-03
Value19510318636223015962494147
Percentage of AccruedIncomeTaxesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.50.61.20.20.10.20.10.60.28.00.4

Other Liabilities Current

us-gaap:OtherLiabilitiesCurrent



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-312018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-07-042014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-04-02
Value5872604514525533404378403370372368397443477352371333419271348348383328292275337418343318313431336311321282252261249312338
Percentage of OtherLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.614.03.23.43.32.52.32.52.22.42.32.52.82.62.12.22.93.62.32.82.72.92.52.32.12.53.22.72.42.23.12.52.32.52.32.12.22.02.63.0

Dividends Payable Current

us-gaap:DividendsPayableCurrent



Period End2020-04-032019-03-29
Value625
Percentage of DividendsPayableCurrent100.0100.0
Percentage of Assets0.80.0

Long Term Debt

us-gaap:LongTermDebt



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012015-04-03
Value422144684464445844525045503950325026558762096202818671387176320422072096
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets54.624.127.529.027.930.731.031.031.935.038.839.145.042.642.627.818.815.8

us-gaap:DebtInstrument, us-gaap:LongtermDebtType

nlok:New2.0ConvertibleNotes, us-gaap:ConvertibleDebt



Period End2020-04-03
Value616
Percentage of LongTermDebt14.6
Percentage of Assets8.0
Percentage of Assets nlok:New2.0ConvertibleNotes us-gaap:ConvertibleDebt0.0

nlok:New2.5ConvertibleNotes, us-gaap:ConvertibleDebt



Period End2020-04-03
Value249
Percentage of LongTermDebt5.9
Percentage of Assets3.2
Percentage of Assets nlok:New2.5ConvertibleNotes us-gaap:ConvertibleDebt0.0

nlok:TwoPointZeroConvertibleSeniorNotesDueAugust152022, us-gaap:ConvertibleDebt



Period End2020-04-032019-03-29
Value6191191
Percentage of LongTermDebt14.726.8
Percentage of Assets8.07.5
Percentage of Assets nlok:TwoPointZeroConvertibleSeniorNotesDueAugust152022 us-gaap:ConvertibleDebt0.00.0

Long Term Debt Noncurrent

us-gaap:LongTermDebtNoncurrent



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-07-042014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-01
Value3465371932193964396144474442503250265587607962026876635865762605220717401740174117461745174520952095209420942094209420942093209320392025201219991987
Percentage of LongTermDebtNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets44.820.119.825.824.927.027.431.031.935.038.039.137.837.939.022.618.814.614.013.613.213.313.515.915.515.816.215.914.615.015.515.415.716.617.016.615.6

Deferred Tax Liabilities Noncurrent

Minority Interest

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-07-042014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-04-02
Value796772708478808387861039810383898597708194102838286837462656060758494807879796050
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.00.40.40.50.50.50.50.50.60.50.60.60.60.50.50.70.80.60.70.70.80.60.60.70.60.60.50.50.40.40.60.60.70.70.70.70.60.50.4

Stockholders Equity

us-gaap:StockholdersEquity



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032014-03-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-04-02
Value1086776112525057385906595059185023495835353389348739493862376636765394589258965935579754215156508850025094464945534564452844554548
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.146.837.734.236.035.936.736.431.931.022.121.419.223.622.932.731.245.247.346.144.842.837.736.937.836.939.138.238.538.035.636.640.5

us-gaap:StatementEquityComponents

nlok:AccumulatedAdjustmentEquityMethodInvestee



Period End2020-04-032019-03-292018-03-30
Value0.0-1000000.00.0
Percentage of StockholdersEquity0.0-0.00.0
Percentage of Assets0.0-0.00.0
Percentage of Assets nlok:AccumulatedAdjustmentEquityMethodInvestee0.00.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-04-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032014-03-28
Value010-1-3-4-4-4-1555466768333
Percentage of StockholdersEquity0.00.00.0-0.0-0.1-0.1-0.1-0.1-0.00.10.10.10.10.20.20.20.10.10.10.10.1
Percentage of Assets0.00.00.0-0.0-0.0-0.0-0.0-0.0-0.00.00.00.00.00.00.10.10.10.10.00.00.0
Percentage of Assets us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome



Period End2020-04-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032014-03-28
Value-16-2-12-7-14-17-20415710123-1-3227588116104194
Percentage of StockholdersEquity-160.0-0.0-0.2-0.1-0.2-0.3-0.30.10.30.20.30.30.1-0.0-0.10.61.41.52.01.83.3
Percentage of Assets-0.2-0.0-0.1-0.0-0.1-0.1-0.10.00.10.00.10.10.0-0.0-0.00.20.60.70.90.81.4
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedTranslationAdjustment



Period End2020-04-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032014-03-28
Value-16-3-12-5-13-15-16816257-1-7-9156980113101191
Percentage of StockholdersEquity-160.0-0.0-0.2-0.1-0.2-0.3-0.30.20.30.10.10.2-0.0-0.2-0.20.41.31.41.91.73.3
Percentage of Assets-0.2-0.0-0.1-0.0-0.1-0.1-0.10.10.10.00.00.0-0.0-0.0-0.10.10.60.60.90.81.4
Percentage of Assets us-gaap:AccumulatedTranslationAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStockIncludingAdditionalPaidInCapital



Period End2020-04-032019-03-292018-03-302017-03-31
Value3356481246914236
Percentage of StockholdersEquity33560.083.993.4121.5
Percentage of Assets43.430.229.823.3
Percentage of Assets us-gaap:CommonStockIncludingAdditionalPaidInCapital0.00.00.00.0

us-gaap:RetainedEarnings



Period End2020-04-032019-03-292018-03-302017-03-31
Value-3330933328-761
Percentage of StockholdersEquity-33300.016.36.5-21.8
Percentage of Assets-43.15.92.1-4.2
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.0

Common Stock Value

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-312018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-07-042014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-04-02
Value-3330381212985619331116110011581267328436-906-894-761-618-664-520-655733-153-270-446-668-912-1148-1316-1599-1840-2096-2285-2494-2687-2859-3418-3658-3840-4012-4181-4609
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-43.120.68.03.75.96.86.87.17.62.12.7-5.7-5.6-4.2-3.7-3.9-4.5-5.60.60.0-1.2-2.0-3.4-5.2-6.9-8.5-9.9-12.4-14.0-14.6-16.4-18.5-19.8-22.0-28.1-30.9-31.9-31.5-34.4-41.0

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-07-042014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-04-02
Value-1612-2-12-7-14-17-20415710123-1-3227588116104119154196194182183177197202190178173160158170171178159
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-0.20.1-0.0-0.1-0.0-0.1-0.1-0.10.00.10.00.10.10.0-0.0-0.00.20.60.70.90.80.91.21.51.41.41.41.31.41.41.41.31.31.31.31.41.31.51.4

Net Cash Provided By Used In Operating Activities

Net Cash Provided By Used In Investing Activities

Net Cash Provided By Used In Financing Activities

Net Cash Provided By Used In Operating Activities

Net Income Loss

us-gaap:NetIncomeLoss



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-282012-09-282012-06-292011-12-302011-09-302011-07-012010-12-312010-10-012010-07-022010-01-01
Value2845785263465-8-60-591342-12-133-14346-144135170156117222244236283241157212193172240182191132136161301
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax460.4129.12.12.95.4-0.7-5.2-4.9111.0-1.0-11.3-12.84.4-14.715.318.710.47.813.615.113.616.614.79.211.811.410.314.010.811.68.29.211.219.4

us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-29
Value2845785263465-8-60
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax460.4129.12.12.95.4-0.7-5.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.0

Profit Loss

Depreciation Depletion And Amortization

Increase Decrease In Inventories

Net Cash Provided By Used In Investing Activities

Payments To Acquire Property Plant And Equipment

Net Cash Provided By Used In Financing Activities

Proceeds From Issuance Of Long Term Debt

Repayments Of Long Term Debt

Payments Of Dividends

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

us-gaap:PaymentsOfDividends

symc:New2.0ConvertibleNotes, us-gaap:ConvertibleDebt, us-gaap:SubsequentEvent



Period End2020-02-04
Value367
Percentage of PaymentsOfDividends100.0

symc:New2.5ConvertibleNotes, us-gaap:ConvertibleDebt, us-gaap:SubsequentEvent



Period End2020-02-04
Value179
Percentage of PaymentsOfDividends48.8

Payments Of Dividends

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

us-gaap:PaymentsOfDividends

symc:New2.0ConvertibleNotes, us-gaap:ConvertibleDebt, us-gaap:SubsequentEvent



Period End2020-02-04
Value367
Percentage of PaymentsOfDividends100.0

symc:New2.5ConvertibleNotes, us-gaap:ConvertibleDebt, us-gaap:SubsequentEvent



Period End2020-02-04
Value179
Percentage of PaymentsOfDividends48.8

Payments For Repurchase Of Common Stock

symc:SharesRepurchaseSettlementPeriod

us-gaap:PaymentsForRepurchaseOfCommonStock

symc:SettledAfterCurrentReportingPeriod



Period End2020-01-03
Value18
Percentage of PaymentsForRepurchaseOfCommonStock100.0

Repayments Of Long Term Debt

Debt Instrument Interest Rate Stated Percentage

us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentInterestRateStatedPercentage

nlok:A4.2SeniorNotesDueSeptember152020, us-gaap:SeniorNotes



Period End2020-04-03
Value0.042
Percentage of DebtInstrumentInterestRateStatedPercentage100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations nlok:A4.2SeniorNotesDueSeptember152020 us-gaap:SeniorNotes0.0

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

nlok:TwoPointZeroConvertibleSeniorNotesDueAugust152022, us-gaap:ConvertibleDebt, us-gaap:SubsequentEvent



Period End2020-05-31
Value0.02
Percentage of DebtInstrumentInterestRateStatedPercentage0.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations nlok:TwoPointZeroConvertibleSeniorNotesDueAugust152022 us-gaap:ConvertibleDebt us-gaap:SubsequentEvent0.0

symc:New2.0ConvertibleNotes, us-gaap:ConvertibleDebt, us-gaap:SubsequentEvent



Period End2020-02-04
Value0.02
Percentage of DebtInstrumentInterestRateStatedPercentage0.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations symc:New2.0ConvertibleNotes us-gaap:ConvertibleDebt us-gaap:SubsequentEvent0.0

symc:New2.5ConvertibleNotes, us-gaap:ConvertibleDebt, us-gaap:SubsequentEvent



Period End2020-02-04
Value0.025
Percentage of DebtInstrumentInterestRateStatedPercentage0.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations symc:New2.5ConvertibleNotes us-gaap:ConvertibleDebt us-gaap:SubsequentEvent0.0

Effective Income Tax Rate Continuing Operations

us-gaap:EffectiveIncomeTaxRateContinuingOperations



Period End2020-01-032019-10-042019-07-052018-12-282018-09-282018-06-292017-12-292017-09-292017-06-302016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-282012-09-282012-06-292011-12-302011-09-302011-07-012010-12-312010-10-012010-07-022010-01-01
Value0.140.360.760.391.290.06-0.860.770.180.08-0.380.320.120.170.320.290.270.230.270.040.290.250.290.270.120.250.250.20.24-0.02-0.07
Percentage of EffectiveIncomeTaxRateContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber

us-gaap:EmployeeStockOption



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-03-312016-04-01
Value23681212131314200
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

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

us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:EmployeeStockOption



Period End2020-04-032019-03-292018-03-302017-03-312016-04-01
Value6.857.838.538.940.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0100.0100.00.0

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

Share Based Compensation

Deferred Tax Liabilities

Deferred Tax Assets Net

us-gaap:DeferredTaxAssetsNet



Period End2020-04-032019-03-292018-03-302017-03-312016-04-012015-04-032014-03-282013-03-292012-03-302011-04-012010-04-02
Value271649371497308350403468583581586
Percentage of DeferredTaxAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-03-302017-03-312016-04-012015-04-032014-03-282013-03-292012-03-302011-04-012010-04-022009-04-032008-03-282007-03-30
Value724569526511446378248197193282412619527543633588456
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Valuation Allowance

us-gaap:DeferredTaxAssetsValuationAllowance



Period End2020-04-032019-03-292018-03-302017-03-312016-04-012015-04-032014-03-282013-03-292012-03-302011-04-012010-04-02
Value9105193850605666554567
Percentage of DeferredTaxAssetsValuationAllowance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset



Period End2020-04-032020-01-032019-10-042019-07-05
Value88107154183
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0

us-gaap:StatementGeographical

country:IN



Period End2020-04-032020-01-032019-07-05
Value111422
Percentage of OperatingLeaseRightOfUseAsset12.513.112.0

country:JP



Period End2020-04-032020-01-03
Value1011
Percentage of OperatingLeaseRightOfUseAsset11.410.3

country:US



Period End2020-04-032020-01-032019-10-042019-07-05
Value40507795
Percentage of OperatingLeaseRightOfUseAsset45.546.750.051.9

nlok:OtherForeignCountries



Period End2020-04-03
Value27
Percentage of OperatingLeaseRightOfUseAsset30.7

symc:OtherForeignCountries



Period End2020-01-03
Value32
Percentage of OperatingLeaseRightOfUseAsset29.9

Cash And Cash Equivalents Period Increase Decrease

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-30
Value126491697153217912309214720011774
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0

Proceeds From Sale Of Short Term Investments

us-gaap:DebtInstrument, us-gaap:LongtermDebtType

nlok:CashNotePayments

nlok:New2.0ConvertibleNotes, us-gaap:ConvertibleDebt



Period End2020-02-04
Value367
Percentage of CashNotePayments100.0

nlok:New2.5ConvertibleNotes, us-gaap:ConvertibleDebt



Period End2020-02-04
Value179
Percentage of CashNotePayments48.8

us-gaap:DebtInstrument, us-gaap:LongtermDebtType

nlok:PaymentsInLieuOfConversionPriceAdjustments

nlok:TwoPointFiveZeroPercentConvertibleSeniorNotesDueApril12022, us-gaap:ConvertibleDebt



Period End2020-03-05
Value1000000.0
Percentage of PaymentsInLieuOfConversionPriceAdjustments100.0

symc:AdjustmentsToAdditionalPaidInCapitalShortSwingProfitDisgorgement



Period End2020-01-03
Value9
Percentage of AdjustmentsToAdditionalPaidInCapitalShortSwingProfitDisgorgement100.0

us-gaap:StatementEquityComponents

us-gaap:CommonStockIncludingAdditionalPaidInCapital



Period End2020-01-03
Value9
Percentage of AdjustmentsToAdditionalPaidInCapitalShortSwingProfitDisgorgement100.0

us-gaap:DisposalGroupClassification

symc:DiscontinuedOperationTaxEffectRelatedToGlobalIntangibleLowTaxIncome

us-gaap:DiscontinuedOperationsDisposedOfBySale



Period End2020-01-03
Value39
Percentage of DiscontinuedOperationTaxEffectRelatedToGlobalIntangibleLowTaxIncome100.0

us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

symc:DiscontinuedOperationsTransitionServicesAgreementInConnectionWithSaleIncomeNetOfDirectCosts

us-gaap:DiscontinuedOperationsDisposedOfBySale, symc:EnterpriseSecurity



Period End2020-01-03
Value5
Percentage of DiscontinuedOperationsTransitionServicesAgreementInConnectionWithSaleIncomeNetOfDirectCosts100.0

symc:OCIBeforeReclassificationsNetOfTaxPortionAttributableToNoncontrollingInterest



Period End2020-01-032018-12-28
Value-1000000.00.0
Percentage of OCIBeforeReclassificationsNetOfTaxPortionAttributableToNoncontrollingInterest100.00.0

us-gaap:LongtermDebtType

symc:PaymentsInLieuOfConversionPriceAdjustments

us-gaap:ConvertibleDebt



Period End2020-01-032018-12-28
Value50
Percentage of PaymentsInLieuOfConversionPriceAdjustments100.00.0

us-gaap:SubsequentEventType

us-gaap:SubsequentEvent



Period End2020-02-04
Value550
Percentage of PaymentsInLieuOfConversionPriceAdjustments0.0

symc:ReclassificationFromAOCICurrentPeriodNetOfTaxPortionAttributableToNoncontrollingInterest



Period End2020-01-032018-12-28
Value-1000000.00.0
Percentage of ReclassificationFromAOCICurrentPeriodNetOfTaxPortionAttributableToNoncontrollingInterest100.00.0

symc:RestructuringTransitionandothercosts



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-30
Value98172536535696132939788
Percentage of RestructuringTransitionandothercosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestructuringCostAndReserve, us-gaap:StatementOperatingActivitiesSegment

symc:AssetWriteoffs, us-gaap:SegmentContinuingOperations



Period End2020-01-032018-12-28
Value100
Percentage of RestructuringTransitionandothercosts10.20.0

symc:AssetWriteoffs, us-gaap:SegmentDiscontinuedOperations



Period End2020-01-032018-12-28
Value130
Percentage of RestructuringTransitionandothercosts13.30.0

symc:SeparationCosts, us-gaap:SegmentDiscontinuedOperations



Period End2020-01-032018-12-28
Value150
Percentage of RestructuringTransitionandothercosts15.30.0

symc:StockBasedCompensationCharges, us-gaap:SegmentContinuingOperations



Period End2020-01-032018-12-28
Value60
Percentage of RestructuringTransitionandothercosts6.10.0

symc:StockBasedCompensationCharges, us-gaap:SegmentDiscontinuedOperations



Period End2020-01-032018-12-28
Value950
Percentage of RestructuringTransitionandothercosts96.90.0

symc:Transitioncosts, us-gaap:SegmentContinuingOperations



Period End2020-01-032018-12-28
Value043
Percentage of RestructuringTransitionandothercosts0.081.1

symc:Transitioncosts, us-gaap:SegmentDiscontinuedOperations



Period End2020-01-032018-12-28
Value02
Percentage of RestructuringTransitionandothercosts0.03.8

us-gaap:ContractTermination, us-gaap:SegmentContinuingOperations



Period End2020-01-032018-12-28
Value670
Percentage of RestructuringTransitionandothercosts68.40.0

us-gaap:ContractTermination, us-gaap:SegmentDiscontinuedOperations



Period End2020-01-032018-12-28
Value50
Percentage of RestructuringTransitionandothercosts5.10.0

us-gaap:EmployeeSeverance, us-gaap:SegmentContinuingOperations



Period End2020-01-032018-12-28
Value114
Percentage of RestructuringTransitionandothercosts11.27.5

us-gaap:EmployeeSeverance, us-gaap:SegmentDiscontinuedOperations



Period End2020-01-032018-12-28
Value781
Percentage of RestructuringTransitionandothercosts79.61.9

us-gaap:OtherRestructuring, us-gaap:SegmentContinuingOperations



Period End2020-01-032018-12-28
Value43
Percentage of RestructuringTransitionandothercosts4.15.7

us-gaap:StatementOperatingActivitiesSegment

us-gaap:SegmentContinuingOperations



Period End2020-01-032019-10-042018-12-282018-09-28
Value98175052
Percentage of RestructuringTransitionandothercosts100.0100.094.392.9

us-gaap:SegmentDiscontinuedOperations



Period End2020-01-032019-10-042018-12-282018-09-28
Value2064034
Percentage of RestructuringTransitionandothercosts210.2235.35.77.1

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation



Period End2020-01-032019-03-292018-12-28
Value75115
Percentage of AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:CommonStockIncludingAdditionalPaidInCapital



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-29
Value77575115845
Percentage of AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation100.00.00.0100.0100.00.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue



Period End2020-01-032019-03-292018-12-28
Value1248650
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:CommonStockIncludingAdditionalPaidInCapital



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-29
Value1247199865093130
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.00.00.0100.0100.00.00.0

us-gaap:AllocatedShareBasedCompensationExpense



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-282012-09-282012-06-292011-12-302011-09-302011-07-012010-12-312010-10-012010-07-022010-01-01
Value120708087559711316212517614720997854938805351464334383942453846383937363539
Percentage of AllocatedShareBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncomeStatementLocation

us-gaap:CostOfSales



Period End2020-01-032019-10-042019-07-052018-12-282018-09-282018-06-292017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-28
Value01544579676533856665444
Percentage of AllocatedShareBasedCompensationExpense0.01.46.27.34.14.45.65.14.13.36.25.96.17.910.09.411.813.014.014.710.510.39.5

us-gaap:GeneralAndAdministrativeExpense



Period End2020-01-032019-10-042019-07-052018-12-282018-09-282018-06-292017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-28
Value20141592338396457112413217913108775787
Percentage of AllocatedShareBasedCompensationExpense16.720.018.816.423.733.631.236.438.853.642.337.634.723.716.218.915.715.216.314.718.420.516.7

us-gaap:NonoperatingIncomeExpense



Period End2020-01-032018-12-28
Value30
Percentage of AllocatedShareBasedCompensationExpense2.50.0

us-gaap:ResearchAndDevelopmentExpense



Period End2020-01-032019-10-042019-07-052018-12-282018-09-282018-06-292017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-28
Value6835193939495341462524151430191715139121313
Percentage of AllocatedShareBasedCompensationExpense5.011.443.834.540.234.539.230.127.922.025.828.230.636.837.535.833.332.630.226.531.633.331.0

us-gaap:RestructuringCharges



Period End2020-01-032018-12-28
Value60
Percentage of AllocatedShareBasedCompensationExpense5.00.0

us-gaap:SellingAndMarketingExpense



Period End2020-01-032019-10-042019-07-052018-12-282018-09-282018-06-292017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-28
Value106252331313050434425241412291920181715151418
Percentage of AllocatedShareBasedCompensationExpense8.38.631.241.832.027.424.028.429.321.125.828.228.631.636.235.839.239.139.544.139.535.942.9

us-gaap:StatementOperatingActivitiesSegment

us-gaap:SegmentContinuingOperations



Period End2020-01-032019-10-042019-03-292018-12-282018-09-28
Value4529333738
Percentage of AllocatedShareBasedCompensationExpense37.541.437.967.339.2

us-gaap:SegmentDiscontinuedOperations



Period End2020-01-032019-10-042019-03-292018-12-282018-09-28
Value7541541859
Percentage of AllocatedShareBasedCompensationExpense62.558.662.132.760.8

us-gaap:LongtermDebtType

us-gaap:AmortizationOfFinancingCostsAndDiscounts

us-gaap:ConvertibleDebt



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-29
Value3444444
Percentage of AmortizationOfFinancingCostsAndDiscounts100.0100.0100.0100.0100.0100.0100.0

us-gaap:AmortizationOfIntangibleAssets



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302015-07-032014-07-042013-06-282012-06-292011-12-302011-09-302011-07-012010-12-312010-10-012010-07-022010-01-01
Value20215151525153-12111111659-3694693242867273737170676161
Percentage of AmortizationOfIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidationItems

us-gaap:MaterialReconcilingItems



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-27
Value28291121111111101111121111161141109469202027323940424142
Percentage of AmortizationOfIntangibleAssets140.0138.1219.6217.6213.5215.7209.4-92.6100.0100.0193.2-305.6100.0100.00.00.00.0100.00.00.0100.00.00.0

us-gaap:FiniteLivedIntangibleAssetsByMajorClass, us-gaap:IncomeStatementLocation

us-gaap:CustomerRelationships, us-gaap:OperatingExpense



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-30
Value2021515152515354525559564334
Percentage of AmortizationOfIntangibleAssets100.0100.0100.0100.0100.0100.0100.0-44.646.847.4100.0-155.645.749.3

us-gaap:DevelopedTechnologyRights, us-gaap:CostOfSales



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-30
Value88616059595858596155535135
Percentage of AmortizationOfIntangibleAssets40.038.1119.6117.6113.5115.7109.4-47.953.252.693.2-147.254.350.7

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount



Period End2020-01-032019-10-042019-07-052018-12-282018-09-282018-06-292017-12-292017-09-292017-06-302016-12-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272012-06-292011-12-302011-09-302011-07-012010-12-312010-10-012010-07-022010-01-01
Value0258141146114501372611001243134333244545446
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

symc:EmployeeEquityAwards



Period End2020-01-032019-10-042019-07-052018-12-282018-09-282018-06-292017-12-292017-09-292017-06-302016-12-30
Value025850551545346
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount0.0100.0100.0100.035.537.7100.037.236805555.633.6

us-gaap:ConvertibleDebtSecurities



Period End2020-01-032019-10-042019-07-052018-12-282018-09-282018-06-292017-12-292017-09-292017-06-302016-12-302016-07-01
Value000091910910910
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount0.00.00.00.064.562.30.062.863.266.40.0

us-gaap:CapitalizedContractCostAmortization



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-29
Value212828252423
Percentage of CapitalizedContractCostAmortization100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonStockDividendsPerShareDeclared



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-28
Value0.1250.0750.0750.074999999999999980.0750.0750.0750.074999999999999980.0750.0750.0750.074999999999999980.0750.0750.0750.150.150.150.150.150.150.150.150.15
Percentage of CommonStockDividendsPerShareDeclared100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementClassOfStock, us-gaap:SubsequentEventType

us-gaap:CommonStock, us-gaap:SubsequentEvent



Period End2109-01-312020-05-142019-11-072019-08-082019-05-092018-11-012018-08-022018-05-102018-01-312017-11-012017-08-022017-05-102017-02-012016-11-032016-08-042016-05-122016-02-042015-11-052015-08-112015-05-142015-02-052014-11-05
Value0.0750.1250.1250.0750.0750.0750.0750.0750.0750.0750.0750.0750.0750.0750.0750.0750.150.150.150.150.150.15
Percentage of CommonStockDividendsPerShareDeclared0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:SubsequentEventType

us-gaap:SubsequentEvent



Period End2020-02-06
Value0.125
Percentage of CommonStockDividendsPerShareDeclared0.0

us-gaap:ContractWithCustomerLiabilityRevenueRecognized



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-29
Value430427920-903831841848
Percentage of ContractWithCustomerLiabilityRevenueRecognized100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentConvertibleConversionRatio1

nlok:TwoPointFiveZeroPercentConvertibleSeniorNotesDueApril12022, us-gaap:ConvertibleDebt



Period End2020-01-31
Value118.9814
Percentage of DebtInstrumentConvertibleConversionRatio1100.0

nlok:TwoPointZeroConvertibleSeniorNotesDueAugust152022, us-gaap:ConvertibleDebt



Period End2020-01-31
Value97.7364
Percentage of DebtInstrumentConvertibleConversionRatio182.1

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

symc:TwoPointFiveZeroPercentConvertibleSeniorNotesDueApril12022, us-gaap:ConvertibleDebt, us-gaap:SubsequentEvent



Period End2020-01-31
Value118.9814
Percentage of DebtInstrumentConvertibleConversionRatio1100.0

symc:TwoPointZeroConvertibleSeniorNotesDueAugust152022, us-gaap:ConvertibleDebt, us-gaap:SubsequentEvent



Period End2020-01-31
Value97.7364
Percentage of DebtInstrumentConvertibleConversionRatio182.1

us-gaap:DeferredCompensationArrangementWithIndividualAllocatedShareBasedCompensationExpense



Period End2020-01-03
Value120
Percentage of DeferredCompensationArrangementWithIndividualAllocatedShareBasedCompensationExpense100.0

us-gaap:IncomeStatementLocation

symc:ContinuingOperationsRestructuringCosts



Period End2020-01-03
Value6
Percentage of DeferredCompensationArrangementWithIndividualAllocatedShareBasedCompensationExpense5.0

symc:DiscontinuedOperationsExpense



Period End2020-01-03
Value2
Percentage of DeferredCompensationArrangementWithIndividualAllocatedShareBasedCompensationExpense1.7

symc:DiscontinuedOperationsRestructuringCosts



Period End2020-01-03
Value95
Percentage of DeferredCompensationArrangementWithIndividualAllocatedShareBasedCompensationExpense79.2

us-gaap:GeneralAndAdministrativeExpense



Period End2020-01-03
Value12
Percentage of DeferredCompensationArrangementWithIndividualAllocatedShareBasedCompensationExpense10.0

us-gaap:SellingAndMarketingExpense



Period End2020-01-03
Value5
Percentage of DeferredCompensationArrangementWithIndividualAllocatedShareBasedCompensationExpense4.2

us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation, us-gaap:IncomeStatementLocation

us-gaap:DerivativeGainLossOnDerivativeNet

us-gaap:ForeignExchangeForward, us-gaap:Nondesignated, us-gaap:OtherNonoperatingIncomeExpense



Period End2020-01-032019-10-042019-07-052018-12-282018-09-282018-06-29
Value7-60-1-2-36
Percentage of DerivativeGainLossOnDerivativeNet100.0100.00.0100.0100.0100.0

us-gaap:DisposalGroupClassification

us-gaap:DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax

us-gaap:DiscontinuedOperationsDisposedOfBySale



Period End2020-01-032019-03-292018-12-28
Value542200
Percentage of DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax100.00.00.0

us-gaap:DisposalGroupClassification

us-gaap:DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax

us-gaap:DiscontinuedOperationsDisposedOfBySale



Period End2020-01-032019-10-042019-03-292018-12-282018-09-28
Value53001133410963
Percentage of DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax100.0100.0100.0100.0100.0

us-gaap:DisposalGroupClassification

us-gaap:DiscontinuedOperationTaxEffectOfDiscontinuedOperation

us-gaap:DiscontinuedOperationsDisposedOfBySale



Period End2020-01-032019-10-042019-03-292018-12-282018-09-28
Value2808-63737259
Percentage of DiscontinuedOperationTaxEffectOfDiscontinuedOperation100.0100.0100.0100.0100.0

us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DiscontinuedOperationTaxEffectOfIncomeLossFromDisposalOfDiscontinuedOperation

us-gaap:DiscontinuedOperationsDisposedOfBySale, symc:EnterpriseSecurity



Period End2020-01-03
Value2801
Percentage of DiscontinuedOperationTaxEffectOfIncomeLossFromDisposalOfDiscontinuedOperation100.0

us-gaap:DisposalGroupClassification

us-gaap:DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss

us-gaap:DiscontinuedOperationsDisposedOfBySale



Period End2020-01-032019-10-042019-03-292018-12-282018-09-28
Value-1181133611063
Percentage of DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss100.0100.0100.0100.0100.0

us-gaap:DisposalGroupClassification

us-gaap:DisposalGroupIncludingDiscontinuedOperationRevenue

us-gaap:DiscontinuedOperationsDisposedOfBySale



Period End2020-01-032019-10-042019-03-292018-12-282018-09-28
Value193576573599567
Percentage of DisposalGroupIncludingDiscontinuedOperationRevenue100.0100.0100.0100.0100.0

us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DisposalGroupNotDiscontinuedOperationGainLossOnDisposal

us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperations, nlok:IDAnalyticsSolutions



Period End2020-01-31
Value250
Percentage of DisposalGroupNotDiscontinuedOperationGainLossOnDisposal100.0

us-gaap:DividendsCommonStockCash



Period End2020-01-032019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-04
Value7854484847464746464746474698102103104104104
Percentage of DividendsCommonStockCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-29
Value78484749495049
Percentage of DividendsCommonStockCash100.00.00.090.7102.1104.2104.3

us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-282012-09-282012-06-292011-12-302011-09-302011-07-012010-12-312010-10-012010-07-022010-01-01
Value221415141221269-258517534251514241514141271011121410-13-11-11-10-10-10-10
Percentage of EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EquityMethodInvestmentRealizedGainLossOnDisposal



Period End2020-01-032019-03-292018-12-28
Value37900
Percentage of EquityMethodInvestmentRealizedGainLossOnDisposal100.00.00.0

us-gaap:ForeignCurrencyTransactionGainLossBeforeTax



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-30
Value-51-2-2-4-3-9-2-5-7-14
Percentage of ForeignCurrencyTransactionGainLossBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:GainsLossesOnExtinguishmentOfDebt

nlok:TwoPointFiveZeroPercentConvertibleSeniorNotesDueApril12022, us-gaap:ConvertibleDebt



Period End2020-03-10
Value-1000000.0
Percentage of GainsLossesOnExtinguishmentOfDebt100.0

us-gaap:LongtermDebtType

us-gaap:ConvertibleDebt



Period End2020-02-04
Value2
Percentage of GainsLossesOnExtinguishmentOfDebt0.0

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-02
Value249275004605-1314-2334102-75695610392247
Percentage of IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity100.0100.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DisposalGroupClassification

us-gaap:DiscontinuedOperationsDisposedOfBySale



Period End2020-01-032019-03-292018-12-28
Value2492-384
Percentage of IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity100.0-75.01400.0

us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DiscontinuedOperationsDisposedOfBySale, symc:Veritas



Period End2020-01-032018-12-28
Value06
Percentage of IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity0.0100.0

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-02
Value4.011.210.00.00.010.090.010.00.050.01-0.040.049999999999999990.16-0.120.110.080.150.130.36
Percentage of IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare100.0100.00.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-02
Value3.851.160.00.00.010.090.010.00.05-0.040.049999999999999990.16-0.120.110.080.150.130.36
Percentage of IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare100.0100.00.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncomeLossFromEquityMethodInvestments



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302011-09-302011-07-012010-12-312010-10-012010-07-022010-01-01
Value-9-11-11-17-24-34-26-26000-14-13-10-4-7-9
Percentage of IncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.0100.0100.0100.0100.0100.0

us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:IncomeStatementLocation

symc:DigicertParentInc., us-gaap:OtherNonoperatingIncomeExpense



Period End2020-01-032019-10-042019-07-052018-12-282018-09-282018-06-29
Value-9-11-11-24-34-26
Percentage of IncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0

us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:IncomeTaxReconciliationDispositionOfAssets

symc:DigicertParentInc.



Period End2020-01-03
Value53
Percentage of IncomeTaxReconciliationDispositionOfAssets100.0

us-gaap:IncrementalCommonSharesAttributableToConversionOfDebtSecurities



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-03-312016-12-30
Value20161010700-13300
Percentage of IncrementalCommonSharesAttributableToConversionOfDebtSecurities100.0100.0100.0100.0100.00.00.0100.0100.00.00.0

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-03-312016-12-302016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272012-06-292011-12-302011-09-302011-07-012010-12-312010-10-012010-07-022010-01-01
Value681319110021500659865636654443
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements100.0100.0100.0100.0100.00.00.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LongtermDebtType

us-gaap:InterestExpenseDebtExcludingAmortization

us-gaap:ConvertibleDebt



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-29
Value9910109109
Percentage of InterestExpenseDebtExcludingAmortization100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:InterestPaidNet

nlok:TwoPointFiveZeroPercentConvertibleSeniorNotesDueApril12022, us-gaap:ConvertibleDebt



Period End2020-03-05
Value2
Percentage of InterestPaidNet100.0

us-gaap:InvestmentIncomeInterest



Period End2020-01-032019-10-042019-07-052018-12-282018-09-282018-06-292017-12-292017-09-292017-06-302013-09-272013-06-282012-12-282012-09-282012-06-292011-12-302011-09-302011-07-012010-12-312010-10-012010-07-022010-01-01
Value3881011117556334232443221
Percentage of InvestmentIncomeInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LeaseCost



Period End2020-01-032019-10-04
Value1417
Percentage of LeaseCost100.0100.0

us-gaap:NumberOfReportableSegments



Period End2020-01-032019-10-042015-07-03
Value1.01.03.0
Percentage of NumberOfReportableSegments100.0100.0100.0

us-gaap:OperatingLeaseExpense



Period End2020-01-032019-10-04
Value610
Percentage of OperatingLeaseExpense100.0100.0

us-gaap:OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent



Period End2020-01-032018-12-282015-01-022014-10-032013-12-272013-09-272013-06-282012-12-282012-06-29
Value-11000-10-4141
Percentage of OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent100.0100.00.00.00.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent



Period End2020-01-032018-12-282015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-282012-09-28
Value152-35-422-116-18-212
Percentage of OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-29
Value00-130-20
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest0.00.0100.0100.00.0100.00.0

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-01-012015-10-022015-07-032015-01-022014-10-032014-07-042013-12-272013-09-272013-06-282012-12-282012-09-28
Value1410-5733-24-118-3-2942-25-13-2812-35-422-16-221212
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome



Period End2020-01-032018-12-28
Value143
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent100.0100.0

us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:PaymentsOfDebtExtinguishmentCosts

nlok:TwoPointFiveZeroPercentConvertibleSeniorNotesDueApril12022, us-gaap:ConvertibleDebt



Period End2020-03-05
Value566
Percentage of PaymentsOfDebtExtinguishmentCosts100.0

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

nlok:TwoPointZeroConvertibleSeniorNotesDueAugust152022, us-gaap:ConvertibleDebt, us-gaap:SubsequentEvent



Period End2020-05-31
Value1180
Percentage of PaymentsOfDebtExtinguishmentCosts0.0

us-gaap:StatementEquityComponents

us-gaap:SharesPaidForTaxWithholdingForShareBasedCompensation

us-gaap:CommonStockIncludingAdditionalPaidInCapital



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-29
Value1030602
Percentage of SharesPaidForTaxWithholdingForShareBasedCompensation100.00.0100.00.0100.00.0100.0

us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesShareBasedCompensationGross

us-gaap:CommonStockIncludingAdditionalPaidInCapital



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-29
Value561611319
Percentage of StockIssuedDuringPeriodSharesShareBasedCompensationGross100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensationGross



Period End2020-01-032018-12-28
Value212
Percentage of StockIssuedDuringPeriodValueShareBasedCompensationGross100.0100.0

us-gaap:StatementEquityComponents

us-gaap:CommonStockIncludingAdditionalPaidInCapital



Period End2020-01-032019-10-042019-07-052018-12-282018-09-282018-06-29
Value215137224
Percentage of StockIssuedDuringPeriodValueShareBasedCompensationGross100.00.00.0100.00.00.0

us-gaap:StockRepurchasedAndRetiredDuringPeriodValue



Period End2020-01-032016-07-012016-01-012015-10-022015-07-03
Value363011816090
Percentage of StockRepurchasedAndRetiredDuringPeriodValue100.00.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:CommonStockIncludingAdditionalPaidInCapital



Period End2020-01-032019-07-05
Value110190
Percentage of StockRepurchasedAndRetiredDuringPeriodValue30.30.0

us-gaap:RetainedEarnings



Period End2020-01-032019-07-05
Value253351
Percentage of StockRepurchasedAndRetiredDuringPeriodValue69.70.0

us-gaap:StockRepurchasedDuringPeriodShares



Period End2020-01-032019-03-29
Value1411
Percentage of StockRepurchasedDuringPeriodShares100.0100.0

symc:SharesRepurchaseSettlementPeriod

symc:SettledAfterCurrentReportingPeriod



Period End2020-01-03
Value1000000.0
Percentage of StockRepurchasedDuringPeriodShares7.1

us-gaap:StatementEquityComponents

us-gaap:CommonStockIncludingAdditionalPaidInCapital



Period End2020-01-032019-07-05
Value1326
Percentage of StockRepurchasedDuringPeriodShares92.90.0

us-gaap:StockRepurchasedDuringPeriodValue



Period End2020-01-03
Value364
Percentage of StockRepurchasedDuringPeriodValue100.0

us-gaap:TreasuryStockAcquiredAverageCostPerShare



Period End2020-01-032015-01-022014-10-032014-07-042013-12-272013-09-272012-12-282012-09-282011-12-302011-09-302010-12-31
Value25.7925.6323.7520.7123.7624.9917.9416.4816.6917.317.03
Percentage of TreasuryStockAcquiredAverageCostPerShare100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:VariableLeaseCost



Period End2020-01-032019-10-04
Value65
Percentage of VariableLeaseCost100.0100.0

nlok:ContractwithCustomerLiabilityDeferredRevenueCurrent



Period End2020-04-032019-03-29
Value709527
Percentage of ContractwithCustomerLiabilityDeferredRevenueCurrent100.0100.0

us-gaap:DebtInstrument, us-gaap:LongtermDebtType

nlok:DebtInstrumentConvertibleConversionRatioBasisOfPrincipalAmount

nlok:TwoPointFiveZeroPercentConvertibleSeniorNotesDueApril12022, us-gaap:ConvertibleDebt



Period End2020-01-31
Value1000.0
Percentage of DebtInstrumentConvertibleConversionRatioBasisOfPrincipalAmount100.0

nlok:TwoPointZeroConvertibleSeniorNotesDueAugust152022, us-gaap:ConvertibleDebt



Period End2020-01-31
Value1000.0
Percentage of DebtInstrumentConvertibleConversionRatioBasisOfPrincipalAmount100.0

nlok:DeferredTaxLiabilitiesDiscountonConvertibleDebt



Period End2020-04-032019-03-29
Value47
Percentage of DeferredTaxLiabilitiesDiscountonConvertibleDebt100.0100.0

us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

nlok:DisposalGroupIncludingDiscontinuedOperationAssetsLiabilities

us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperations, nlok:IDAnalyticsSolutions



Period End2020-01-31
Value125
Percentage of DisposalGroupIncludingDiscontinuedOperationAssetsLiabilities100.0

us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

nlok:DisposalGroupIncludingDiscontinuedOperationGoodwillandIntangibleAssetsNet

us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperations, nlok:IDAnalyticsSolutions



Period End2020-01-31
Value114
Percentage of DisposalGroupIncludingDiscontinuedOperationGoodwillandIntangibleAssetsNet100.0

nlok:DividendPayableNoncurrent



Period End2020-04-032019-03-29
Value313
Percentage of DividendPayableNoncurrent100.0100.0

us-gaap:Range

nlok:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardModificationTermPercentageOfUnvestedEquity

srt:Maximum



Period End2020-04-03
Value1.5
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardModificationTermPercentageOfUnvestedEquity100.0

srt:Minimum



Period End2020-04-03
Value0.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardModificationTermPercentageOfUnvestedEquity0.0

symc:ContractwithCustomerLiabilityDeferredRevenueCurrent



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-03-30
Value6746001795181517382368
Percentage of ContractwithCustomerLiabilityDeferredRevenueCurrent100.0100.0100.0100.0100.0100.0

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

symc:DebtInstrumentConvertibleConversionRatioBasisOfPrincipalAmount

symc:TwoPointFiveZeroPercentConvertibleSeniorNotesDueApril12022, us-gaap:ConvertibleDebt, us-gaap:SubsequentEvent



Period End2020-01-31
Value1000.0
Percentage of DebtInstrumentConvertibleConversionRatioBasisOfPrincipalAmount100.0

symc:TwoPointZeroConvertibleSeniorNotesDueAugust152022, us-gaap:ConvertibleDebt, us-gaap:SubsequentEvent



Period End2020-01-31
Value1000.0
Percentage of DebtInstrumentConvertibleConversionRatioBasisOfPrincipalAmount100.0

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

symc:DebtInstrumentPrincipalAmountPortionWithConversionPriceAdjustment

symc:TwoPointFiveZeroPercentConvertibleSeniorNotesDueApril12022, us-gaap:ConvertibleDebt, us-gaap:SubsequentEvent



Period End2020-01-31
Value250
Percentage of DebtInstrumentPrincipalAmountPortionWithConversionPriceAdjustment100.0

symc:TwoPointZeroConvertibleSeniorNotesDueAugust152022, us-gaap:ConvertibleDebt, us-gaap:SubsequentEvent



Period End2020-01-31
Value625
Percentage of DebtInstrumentPrincipalAmountPortionWithConversionPriceAdjustment250.0

us-gaap:DisposalGroupClassification

symc:DisposalGroupIncludingDiscontinuedOperationContractLiabilitiesCurrent

us-gaap:DiscontinuedOperationsDisposedOfBySale



Period End2020-01-032019-03-29
Value101288
Percentage of DisposalGroupIncludingDiscontinuedOperationContractLiabilitiesCurrent100.0100.0

us-gaap:DisposalGroupClassification

symc:DisposalGroupIncludingDiscontinuedOperationContractLiabilitiesNoncurrent

us-gaap:DiscontinuedOperationsDisposedOfBySale



Period End2020-01-032019-03-29
Value5709
Percentage of DisposalGroupIncludingDiscontinuedOperationContractLiabilitiesNoncurrent100.0100.0

symc:OtherTaxesPayableCurrent



Period End2020-01-032019-10-042019-03-29
Value232202143
Percentage of OtherTaxesPayableCurrent100.0100.0100.0

us-gaap:Range

symc:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardModificationTermPercentageOfUnvestedEquity

srt:Maximum



Period End2020-01-03
Value1.5
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardModificationTermPercentageOfUnvestedEquity100.0

srt:Minimum



Period End2020-01-03
Value0.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardModificationTermPercentageOfUnvestedEquity0.0

us-gaap:SubsequentEventType

symc:SpecialDividend

us-gaap:SubsequentEvent



Period End2020-01-09
Value12.0
Percentage of SpecialDividend100.0

us-gaap:AccountsReceivableGrossCurrent



Period End2020-04-032019-03-292018-03-302017-03-312014-03-282013-03-292012-03-302011-04-012010-04-02
Value123713814657103410549621034873
Percentage of AccountsReceivableGrossCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccrualForTaxesOtherThanIncomeTaxesCurrent



Period End2020-04-032019-03-29
Value141143
Percentage of AccrualForTaxesOtherThanIncomeTaxesCurrent100.0100.0

us-gaap:AccruedIncomeTaxesNoncurrent



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-03-312012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-04-02
Value1310108610691078107610551066111211261051251387393315389392361357426
Percentage of AccruedIncomeTaxesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccruedMarketingCostsCurrent



Period End2020-04-032019-03-29
Value1017
Percentage of AccruedMarketingCostsCurrent100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent



Period End2020-04-032019-03-292018-03-302017-03-312016-04-012015-04-032014-03-282013-03-292012-03-302011-04-012010-04-02
Value1255816775598
Percentage of AllowanceForDoubtfulAccountsReceivableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:AssetsFairValueDisclosure

us-gaap:CertificatesOfDeposit, us-gaap:FairValueInputsLevel2, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:FairValueMeasurementsRecurring



Period End2020-01-032019-10-042019-03-29
Value17021851
Percentage of AssetsFairValueDisclosure100.0100.0100.0

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



Period End2020-01-032019-10-042019-03-29
Value118134251
Percentage of AssetsFairValueDisclosure6.972.425100.0

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



Period End2020-01-032019-10-042019-03-29
Value1030111171415
Percentage of AssetsFairValueDisclosure605.2603.8141500.0

us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency

us-gaap:CertificatesOfDeposit, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:FairValueMeasurementsRecurring



Period End2020-01-032019-10-042019-03-29
Value17021851
Percentage of AssetsFairValueDisclosure100.0100.0100.0

us-gaap:CorporateDebtSecurities, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:FairValueMeasurementsRecurring



Period End2020-01-032019-10-042019-03-29
Value118134251
Percentage of AssetsFairValueDisclosure6.972.425100.0

us-gaap:MoneyMarketFunds, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:FairValueMeasurementsRecurring



Period End2020-01-032019-10-042019-03-29
Value1030111171415
Percentage of AssetsFairValueDisclosure605.2603.8141500.0

us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueInputsLevel1, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:FairValueMeasurementsRecurring



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-03-31
Value103011117106414151485156914186792626
Percentage of AssetsFairValueDisclosure605.2603.80.0141500.00.00.00.00.00.0

us-gaap:FairValueInputsLevel2, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:FairValueMeasurementsRecurring



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-03-31
Value1820319360252781426435467447
Percentage of AssetsFairValueDisclosure106.9172.40.025200.00.00.00.00.00.0

us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring



Period End2020-04-032019-03-29
Value13461415
Percentage of AssetsFairValueDisclosure0.0141500.0

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring



Period End2020-04-032019-03-29
Value434252
Percentage of AssetsFairValueDisclosure0.025200.0

us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency

us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:FairValueMeasurementsRecurring



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032014-03-28
Value1212114361424166722661995185311462532202623144256558256196118602522693357388438914084
Percentage of AssetsFairValueDisclosure712.2776.20.0166700.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring



Period End2020-04-032019-03-29
Value17801667
Percentage of AssetsFairValueDisclosure0.0166700.0

us-gaap:AssetsHeldForSaleNotPartOfDisposalGroupCurrent



Period End2020-04-032020-01-032019-03-292018-12-282018-09-282018-06-292018-03-302017-03-31
Value270213002626260
Percentage of AssetsHeldForSaleNotPartOfDisposalGroupCurrent100.0100.00.00.0100.0100.0100.00.0

us-gaap:DisposalGroupClassification

us-gaap:AssetsOfDisposalGroupIncludingDiscontinuedOperation

us-gaap:DiscontinuedOperationsDisposedOfBySale



Period End2020-01-032019-03-29
Value87199
Percentage of AssetsOfDisposalGroupIncludingDiscontinuedOperation100.0100.0

us-gaap:AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent



Period End2020-04-032020-01-032019-10-042019-03-292016-04-012016-01-012015-04-03
Value08704714903950415
Percentage of AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent0.0100.0100.0100.00.0100.0100.0

us-gaap:DisposalGroupClassification

us-gaap:DiscontinuedOperationsDisposedOfBySale



Period End2020-01-032019-03-29
Value2149
Percentage of AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent25.0100.0

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

us-gaap:AvailableForSaleSecuritiesDebtSecurities

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:CertificatesOfDeposit



Period End2020-04-032019-03-29
Value3481
Percentage of AvailableForSaleSecuritiesDebtSecurities100.0100.0

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



Period End2020-04-032019-03-29
Value86251
Percentage of AvailableForSaleSecuritiesDebtSecurities24.725100.0

us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument

us-gaap:FairValueMeasurementsRecurring, us-gaap:CertificatesOfDeposit



Period End2020-04-032019-03-29
Value3481
Percentage of AvailableForSaleSecuritiesDebtSecurities100.0100.0

us-gaap:FairValueMeasurementsRecurring, us-gaap:CorporateDebtSecurities



Period End2020-04-032019-03-29
Value86251
Percentage of AvailableForSaleSecuritiesDebtSecurities24.725100.0

us-gaap:CapitalizedComputerSoftwareNet



Period End2020-04-032019-03-29
Value2443
Percentage of CapitalizedComputerSoftwareNet100.0100.0

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

us-gaap:CashAndCashEquivalentsFairValueDisclosure

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



Period End2020-04-032019-03-29
Value13461415
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.0

us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument

us-gaap:FairValueMeasurementsRecurring, us-gaap:MoneyMarketFunds



Period End2020-04-032019-03-29
Value13461415
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.0

us-gaap:CashCashEquivalentsAndShortTermInvestments



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-03-31
Value22631276818311694204325792436232521624256
Percentage of CashCashEquivalentsAndShortTermInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementGeographical

country:US



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-03-31
Value134511705142912161544221517381627858950
Percentage of CashCashEquivalentsAndShortTermInvestments59.491.778.071.875.685.971.370.039.722.3

us-gaap:NonUs



Period End2020-04-032020-01-032019-03-29
Value9181063499
Percentage of CashCashEquivalentsAndShortTermInvestments40.68.324.4

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations



Period End2020-04-032019-03-292018-03-302017-03-312016-04-01
Value21771791177442475983
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations100.0100.0100.0100.0100.0

us-gaap:CashEquivalentsAtCarryingValue



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-03-31
Value1694120011302126214151996170615297583064
Percentage of CashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonStocksIncludingAdditionalPaidInCapital



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-01
Value33564853481647014812480448674780469145074434427342364564452742894309
Percentage of CommonStocksIncludingAdditionalPaidInCapital100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiabilityCurrent



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-312018-03-30
Value104910199902211232022142113213722612368
Percentage of ContractWithCustomerLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiabilityNoncurrent



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-312018-03-30
Value272826688736701633630673735
Percentage of ContractWithCustomerLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerRefundLiabilityCurrent



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-03-30
Value3403453904165054760
Percentage of ContractWithCustomerRefundLiabilityCurrent100.0100.0100.0100.0100.0100.00.0

us-gaap:DebtInstrumentCarryingAmount



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012015-04-032013-03-292012-03-302011-04-01
Value425045004500450045005100510051005100567063006300831072557300325022502100100010001600
Percentage of DebtInstrumentCarryingAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrument, us-gaap:LongtermDebtType

nlok:New2.0ConvertibleNotes, us-gaap:ConvertibleDebt



Period End2020-04-03
Value625
Percentage of DebtInstrumentCarryingAmount14.7

nlok:New2.5ConvertibleNotes, us-gaap:ConvertibleDebt



Period End2020-04-03
Value250
Percentage of DebtInstrumentCarryingAmount5.9

nlok:SeniorTermLoanA5FloatingRateDueAugust12021, us-gaap:UnsecuredDebt



Period End2020-04-032019-03-29
Value0500
Percentage of DebtInstrumentCarryingAmount0.011.1

nlok:TermLoanDueNovember42024, us-gaap:UnsecuredDebt



Period End2020-04-03
Value500
Percentage of DebtInstrumentCarryingAmount11.8

nlok:TwoPointFiveZeroPercentConvertibleSeniorNotesDueApril12022, us-gaap:ConvertibleDebt



Period End2020-04-032019-03-29
Value0500
Percentage of DebtInstrumentCarryingAmount0.011.1

nlok:TwoPointZeroConvertibleSeniorNotesDueAugust152022, us-gaap:ConvertibleDebt



Period End2020-04-032019-03-29
Value6251250
Percentage of DebtInstrumentCarryingAmount14.727.8

symc:SeniorTermLoanA5dueAugust12021, us-gaap:UnsecuredDebt



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-30
Value050050050050050050050050050050017101755
Percentage of DebtInstrumentCarryingAmount0.011.111.111.19.89.89.89.88.87.97.920.624.2

symc:TermLoanDueNovember42024, us-gaap:UnsecuredDebt



Period End2020-01-032019-03-29
Value5000
Percentage of DebtInstrumentCarryingAmount11.10.0

us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent

nlok:New2.0ConvertibleNotes, us-gaap:ConvertibleDebt



Period End2020-04-03
Value56
Percentage of DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent100.0

nlok:New2.5ConvertibleNotes, us-gaap:ConvertibleDebt



Period End2020-04-03
Value43
Percentage of DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent76.8

nlok:TwoPointZeroConvertibleSeniorNotesDueAugust152022, us-gaap:ConvertibleDebt



Period End2020-04-032019-03-29
Value1224
Percentage of DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent21.40.0

us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentConvertibleConversionPrice1

nlok:New2.0ConvertibleNotes, us-gaap:ConvertibleDebt



Period End2020-02-04
Value20.41
Percentage of DebtInstrumentConvertibleConversionPrice1100.0

nlok:New2.5ConvertibleNotes, us-gaap:ConvertibleDebt



Period End2020-02-04
Value16.77
Percentage of DebtInstrumentConvertibleConversionPrice182.2

nlok:TwoPointFiveZeroPercentConvertibleSeniorNotesDueApril12022, us-gaap:ConvertibleDebt



Period End2020-03-052020-02-042020-01-31
Value19.08.48.4
Percentage of DebtInstrumentConvertibleConversionPrice10.041.20.0

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

nlok:TwoPointZeroConvertibleSeniorNotesDueAugust152022, us-gaap:ConvertibleDebt, us-gaap:SubsequentEvent



Period End2020-05-31
Value19.25
Percentage of DebtInstrumentConvertibleConversionPrice10.0

symc:TwoPointFiveZeroPercentConvertibleSeniorNotesDueApril12022, us-gaap:ConvertibleDebt, us-gaap:SubsequentEvent



Period End2020-01-31
Value8.4
Percentage of DebtInstrumentConvertibleConversionPrice10.0

symc:TwoPointZeroConvertibleSeniorNotesDueAugust152022, us-gaap:ConvertibleDebt, us-gaap:SubsequentEvent



Period End2020-01-31
Value10.23
Percentage of DebtInstrumentConvertibleConversionPrice10.0

us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentFaceAmount

nlok:TwoPointZeroConvertibleSeniorNotesDueAugust152022, us-gaap:ConvertibleDebt



Period End2020-01-31
Value625
Percentage of DebtInstrumentFaceAmount100.0

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

nlok:TwoPointZeroConvertibleSeniorNotesDueAugust152022, us-gaap:ConvertibleDebt, us-gaap:SubsequentEvent



Period End2020-05-31
Value625
Percentage of DebtInstrumentFaceAmount0.0

us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:DebtInstrumentFairValue

us-gaap:FairValueInputsLevel2



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-03-28
Value363440164020402939643800390039003900570064006400830072007300330023001800180021002200220022002200
Percentage of DebtInstrumentFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentInterestRateEffectivePercentage

nlok:New2.0ConvertibleNotes, us-gaap:ConvertibleDebt



Period End2020-04-03
Value0.0262
Percentage of DebtInstrumentInterestRateEffectivePercentage100.0

nlok:New2.5ConvertibleNotes, us-gaap:ConvertibleDebt



Period End2020-04-03
Value0.0263
Percentage of DebtInstrumentInterestRateEffectivePercentage100.4

symc:TwoPointFiveZeroPercentConvertibleSeniorNotesDueApril12022, us-gaap:ConvertibleDebt



Period End2020-01-03
Value0.0376
Percentage of DebtInstrumentInterestRateEffectivePercentage0.0

symc:TwoPointZeroConvertibleSeniorNotesDueAugust152022, us-gaap:ConvertibleDebt



Period End2020-01-03
Value0.0266
Percentage of DebtInstrumentInterestRateEffectivePercentage0.0

us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-01
Value2932364248556168748391981241171244643
Percentage of DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrument, us-gaap:LongtermDebtType

nlok:New2.0ConvertibleNotes, us-gaap:ConvertibleDebt



Period End2020-04-03
Value9
Percentage of DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet31.0

nlok:New2.5ConvertibleNotes, us-gaap:ConvertibleDebt



Period End2020-04-03
Value1000000.0
Percentage of DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet3.4

nlok:TwoPointZeroConvertibleSeniorNotesDueAugust152022, us-gaap:ConvertibleDebt



Period End2020-04-032019-03-29
Value659
Percentage of DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet20.7122.9

us-gaap:DecreaseInUnrecognizedTaxBenefitsIsReasonablyPossible



Period End2020-04-032017-03-312016-04-01
Value3136
Percentage of DecreaseInUnrecognizedTaxBenefitsIsReasonablyPossible100.0100.0100.0

us-gaap:AwardType, us-gaap:BalanceSheetLocation

us-gaap:DeferredCompensationShareBasedArrangementsLiabilityCurrent

nlok:LiabilityClassifiedAwards, nlok:Accruedcompensationandbenefits



Period End2020-04-032019-03-29
Value022
Percentage of DeferredCompensationShareBasedArrangementsLiabilityCurrent0.0100.0

symc:LiabilityClassifiedAwards, symc:Accruedcompensationandbenefits



Period End2020-01-032019-10-042019-07-052019-03-29
Value26422
Percentage of DeferredCompensationShareBasedArrangementsLiabilityCurrent0.00.00.0100.0

us-gaap:DeferredIncomeTaxAssetsNet



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-312018-03-302017-03-31
Value38740414988338308288348288284643
Percentage of DeferredIncomeTaxAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxLiabilities



Period End2020-04-032019-03-292018-03-302017-03-312016-04-012015-04-03
Value3339691728551511481
Percentage of DeferredIncomeTaxLiabilities100.0100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxLiabilitiesNet



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-03-312018-03-302017-03-31
Value1491655385485776266395922401
Percentage of DeferredIncomeTaxLiabilitiesNet100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxesAndOtherTaxReceivableCurrent



Period End2020-01-032019-10-042019-03-29
Value16112369
Percentage of DeferredIncomeTaxesAndOtherTaxReceivableCurrent100.0100.0100.0

us-gaap:DeferredTaxAssetsDeferredIncome



Period End2020-04-032019-03-292018-03-302017-03-312016-04-012015-04-032014-03-282013-03-292012-03-302011-04-012010-04-02
Value2549413789749293957761
Percentage of DeferredTaxAssetsDeferredIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsEquityMethodInvestments



Period End2020-04-032019-03-292018-03-30
Value1359
Percentage of DeferredTaxAssetsEquityMethodInvestments100.0100.0100.0

us-gaap:DeferredTaxAssetsGoodwillAndIntangibleAssets



Period End2020-04-032019-03-292018-03-30
Value1173840
Percentage of DeferredTaxAssetsGoodwillAndIntangibleAssets100.0100.00.0

us-gaap:DeferredTaxAssetsGross



Period End2020-04-032019-03-292018-03-302017-03-312016-04-012015-04-032014-03-282013-03-292012-03-302011-04-012010-04-02
Value280754390535358410347402528536519
Percentage of DeferredTaxAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards



Period End2020-04-032019-03-292018-03-302017-03-312016-04-012015-04-032014-03-282013-03-292012-03-302011-04-012010-04-02
Value21513282345779102137181148
Percentage of DeferredTaxAssetsOperatingLossCarryforwards100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOther



Period End2020-04-032019-03-292018-03-302017-03-312016-04-012015-04-032012-03-302011-04-012010-04-02
Value442518149047981
Percentage of DeferredTaxAssetsOther100.0100.0100.0100.0100.00.0100.0100.0100.0

us-gaap:DeferredTaxAssetsPropertyPlantAndEquipment



Period End2020-04-032019-03-29
Value100
Percentage of DeferredTaxAssetsPropertyPlantAndEquipment100.00.0

us-gaap:DeferredTaxAssetsTaxCreditCarryforwards



Period End2020-04-032019-03-292018-03-302017-03-312016-04-012015-04-032014-03-282013-03-292012-03-302011-04-012010-04-02
Value654304253313854431716
Percentage of DeferredTaxAssetsTaxCreditCarryforwards100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost



Period End2020-04-032019-03-292018-03-302017-03-312016-04-012015-04-032014-03-282013-03-29
Value218714112239453136
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther



Period End2020-04-032019-03-292018-03-302017-03-312016-04-012015-04-032014-03-282013-03-292012-03-302011-04-012010-04-02
Value466466127112173128144152141137
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesDeferredExpenseReservesAndAccruals



Period End2020-04-032019-03-292018-03-302017-03-312016-04-012015-04-032014-03-28
Value2432324174230
Percentage of DeferredTaxLiabilitiesDeferredExpenseReservesAndAccruals100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill



Period End2020-04-032019-03-292018-03-302017-03-312016-04-012015-04-032014-03-282013-03-29
Value013205450542919
Percentage of DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill0.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment



Period End2020-04-032019-03-292018-03-302017-03-312016-04-012015-04-032014-03-28
Value0175341068876
Percentage of DeferredTaxLiabilitiesPropertyPlantAndEquipment0.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesUndistributedForeignEarnings



Period End2020-04-032019-03-292018-03-302017-03-312016-04-012015-04-032014-03-282013-03-292012-03-302011-04-012010-04-02
Value1731639619391327273399372329282244
Percentage of DeferredTaxLiabilitiesUndistributedForeignEarnings100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation, us-gaap:Position

us-gaap:DerivativeNotionalAmount

us-gaap:ForeignExchangeForward, symc:BalanceSheetContracts, us-gaap:Nondesignated, us-gaap:Long



Period End2020-01-032019-10-042019-03-29
Value913410963
Percentage of DerivativeNotionalAmount100.0100.0100.0

us-gaap:ForeignExchangeForward, symc:BalanceSheetContracts, us-gaap:Nondesignated, us-gaap:Short



Period End2020-01-032019-10-042019-03-29
Value51277122
Percentage of DerivativeNotionalAmount5.667.612.7

us-gaap:ForeignExchangeForward, us-gaap:NetInvestmentHedging, us-gaap:DesignatedAsHedgingInstrument, us-gaap:Short



Period End2020-04-032020-01-032019-10-042019-03-29
Value0374120116
Percentage of DerivativeNotionalAmount0.041.029.312.0

us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation, us-gaap:Position

us-gaap:ForeignExchangeForward, us-gaap:Nondesignated, us-gaap:Long



Period End2020-04-032019-03-29
Value362963
Percentage of DerivativeNotionalAmount0.0100.0

us-gaap:ForeignExchangeForward, us-gaap:Nondesignated, us-gaap:Short



Period End2020-04-032019-03-29
Value57122
Percentage of DerivativeNotionalAmount0.012.7

us-gaap:DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent



Period End2020-04-032020-01-032019-10-042019-03-292016-04-012016-01-012015-04-03
Value0006992003110
Percentage of DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent0.00.00.0100.00.00.0100.0

us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DisposalGroupIncludingDiscontinuedOperationConsideration

us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperations, nlok:IDAnalyticsSolutions



Period End2020-01-31
Value375
Percentage of DisposalGroupIncludingDiscontinuedOperationConsideration100.0

us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:SubsequentEventType

us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperations, symc:IDAnalyticsSolutions, us-gaap:SubsequentEvent



Period End2020-01-31
Value375
Percentage of DisposalGroupIncludingDiscontinuedOperationConsideration100.0

us-gaap:DisposalGroupClassification

us-gaap:DisposalGroupIncludingDiscontinuedOperationGoodwillNoncurrent

us-gaap:DiscontinuedOperationsDisposedOfBySale



Period End2020-01-032019-03-29
Value05773
Percentage of DisposalGroupIncludingDiscontinuedOperationGoodwillNoncurrent0.0100.0

us-gaap:DisposalGroupClassification

us-gaap:DisposalGroupIncludingDiscontinuedOperationIntangibleAssetsNoncurrent

us-gaap:DiscontinuedOperationsDisposedOfBySale



Period End2020-01-032019-03-29
Value01048
Percentage of DisposalGroupIncludingDiscontinuedOperationIntangibleAssetsNoncurrent0.0100.0

us-gaap:DisposalGroupClassification

us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities

us-gaap:DiscontinuedOperationsDisposedOfBySale



Period End2020-01-032019-03-29
Value316
Percentage of DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities100.0100.0

us-gaap:DisposalGroupClassification

us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentAssets

us-gaap:DiscontinuedOperationsDisposedOfBySale



Period End2020-01-032019-03-29
Value6229
Percentage of DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentAssets100.0100.0

us-gaap:DisposalGroupClassification

us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentLiabilities

us-gaap:DiscontinuedOperationsDisposedOfBySale



Period End2020-01-032019-03-29
Value36
Percentage of DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentLiabilities100.0100.0

us-gaap:EmployeeRelatedLiabilitiesCurrent



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-07-042014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-04-02
Value115131219198257226165165262215193206272240218166219203289283398382310333365338312321422454308286416393312329443392349
Percentage of EmployeeRelatedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EquityMethodInvestments



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012015-04-032012-03-302011-07-012011-04-012010-12-312010-04-02
Value00112232517410813415915815815815915715710014273658
Percentage of EquityMethodInvestments0.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0

us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueAmount



Period End2020-04-032020-01-032019-10-042019-07-052019-03-29
Value187185186186184
Percentage of EquitySecuritiesWithoutReadilyDeterminableFairValueAmount100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-07-042014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-04-02
Value31531228611851072102991983772663552969457746750944642441354261984180479376972837763742369936143529344334013314321731243030293628422551
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:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CustomerRelationships



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-07-042014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-04-02
Value2302272085665155074574093573052563823222683613353203043693515365165134944691882185918331766170016341564149914301363129612271161973
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization73.072.872.747.848.049.349.748.949.248.048.455.055.857.470.975.175.573.668.156.763.764.264.764.264.449.849.749.648.948.247.546.045.244.543.642.841.840.938.1

us-gaap:DevelopedTechnologyRights



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-07-042014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-04-02
Value85837661755551345341936132326828422917512590849014715117215915515414217601747173417201705168916711654163116101588156715451458
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization27.026.626.652.151.849.949.350.149.750.950.740.939.737.524.620.219.821.827.124.420.519.819.520.019.546.646.746.947.648.349.149.149.950.751.552.453.454.457.2

us-gaap:OtherIntangibleAssets



Period End2020-01-032019-10-042019-07-052019-03-292017-03-312016-04-01
Value222200
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization0.60.70.20.20.00.0

us-gaap:TradeNames



Period End2020-04-032019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-07-042014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-04-02
Value0299987528654221910011711311010610312011711311010710310196928783807666
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization0.00.20.91.01.11.11.10.94.01.01.10.80.40.50.21.716.213.914.113.913.814.13.23.13.13.03.03.03.02.92.92.82.72.72.72.6

us-gaap:FiniteLivedIntangibleAssetsGross



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-03-282011-04-012010-12-312010-04-02
Value638687688247024702504249725142512251825052703269820342170588573580817918117211761199444744703730
Percentage of FiniteLivedIntangibleAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CustomerRelationships



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-03-282011-04-012010-12-312010-04-02
Value505541541142514251466146414621462146214631650164611111247409406402531529730734766212121211839
Percentage of FiniteLivedIntangibleAssetsGross79.278.778.657.757.758.558.658.258.258.158.461.061.054.657.569.670.969.365.057.662.362.463.947.747.449.3

us-gaap:DevelopedTechnologyRights



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-03-282011-04-012010-12-312010-04-02
Value1331421431039103910251020103910371043103210071006883883144144155251262296296287181018081635
Percentage of FiniteLivedIntangibleAssetsGross20.820.720.842.142.140.940.841.341.341.441.237.337.343.440.724.525.126.730.728.525.325.223.940.740.443.8

us-gaap:OtherIntangibleAssets



Period End2020-01-032019-10-042019-07-052019-03-292017-03-312016-04-01
Value446620
Percentage of FiniteLivedIntangibleAssetsGross0.60.60.20.20.10.0

us-gaap:TradeNames



Period End2020-04-032019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-03-282011-04-012010-12-312010-04-02
Value0613131313131046231919142214106125125125136131128
Percentage of FiniteLivedIntangibleAssetsGross0.00.20.50.50.50.50.50.41.70.90.90.92.40.30.31.711.510.710.610.43.12.93.4

us-gaap:IncomeTaxesReceivable



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-312018-03-302017-03-31
Value150492634613964799910779
Percentage of IncomeTaxesReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncomeTaxesReceivableNoncurrent



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-312018-03-302017-03-31
Value3843434334312629296111
Percentage of IncomeTaxesReceivableNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill

us-gaap:TradeNames



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-04-012015-04-032015-01-022014-03-28
Value744744852852852852852852852852864864281281294297297297
Percentage of IndefiniteLivedIntangibleAssetsExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IndefiniteLivedTradeNames



Period End2020-04-032019-03-292018-03-302017-03-312016-07-012016-04-012016-01-012015-10-022015-07-032015-04-03
Value744852852864281294297297297297
Percentage of IndefiniteLivedTradeNames100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IntangibleAssetsGrossExcludingGoodwill



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-07-042014-03-282013-12-272013-03-29
Value138214311432332233223358335233693369338933763586358123342470869867877111412151469147314831504149645854591
Percentage of IntangibleAssetsGrossExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DisposalGroupClassification

us-gaap:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation

us-gaap:DiscontinuedOperationsDisposedOfBySale



Period End2020-01-032019-03-29
Value212019
Percentage of LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation100.0100.0

us-gaap:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent



Period End2020-04-032020-01-032019-10-042019-03-292016-04-012016-01-012015-04-03
Value021193212970932936
Percentage of LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent0.0100.0100.0100.00.0100.0100.0

us-gaap:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent



Period End2020-04-032020-01-032019-10-042019-03-292016-04-012016-01-012015-04-03
Value00071300134
Percentage of LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent0.00.00.0100.00.00.0100.0

us-gaap:LiabilityForUncertainTaxPositionsNoncurrent



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-09-292017-06-302017-03-312016-12-302016-09-302016-07-012016-04-012016-01-012015-10-022015-07-032015-04-032015-01-022014-10-032014-07-042014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-03-30
Value695460431440373325294292302280261251203192154160140132136134133130132252242222327318341371393
Percentage of LiabilityForUncertainTaxPositionsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:LongtermDebtWeightedAverageInterestRate

nlok:TermLoanDueNovember42024, us-gaap:UnsecuredDebt



Period End2020-04-03
Value0.0288
Percentage of LongtermDebtWeightedAverageInterestRate100.0

symc:TermLoanDueNovember42024, us-gaap:UnsecuredDebt



Period End2020-01-03
Value0.0331
Percentage of LongtermDebtWeightedAverageInterestRate0.0

us-gaap:OperatingLeaseLiability



Period End2020-04-032020-01-032019-10-042019-07-05
Value101124173208
Percentage of OperatingLeaseLiability100.0100.0100.0100.0

us-gaap:IncomeTaxAuthority

us-gaap:OperatingLossCarryforwards

us-gaap:ForeignCountry



Period End2020-04-032019-03-292018-03-302017-03-312016-04-012015-04-032014-03-282013-03-292012-03-30
Value89118774048183280331404
Percentage of OperatingLossCarryforwards100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StateAndLocalJurisdiction



Period End2020-04-032019-03-292018-03-302017-03-312016-04-012015-04-032014-03-282013-03-292012-03-30
Value236870185131161203279314
Percentage of OperatingLossCarryforwards25.857.690.9462.5272.988.072.584.377.7

us-gaap:IncomeTaxAuthority, us-gaap:IncomeTaxAuthorityName

us-gaap:DomesticCountry, us-gaap:InternalRevenueServiceIRS



Period End2020-04-032019-03-292018-03-302017-03-312016-04-012015-04-03
Value128147461864760
Percentage of OperatingLossCarryforwards143.8124.659.7465.097.932.8

us-gaap:OtherAssetsMiscellaneousCurrent



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-03-31
Value8783225451122101125118113
Percentage of OtherAssetsMiscellaneousCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherAssetsMiscellaneousNoncurrent



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-03-31
Value66778089898780807555
Percentage of OtherAssetsMiscellaneousNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherSundryLiabilitiesCurrent



Period End2020-04-032020-01-032019-10-042019-03-29
Value251286219278
Percentage of OtherSundryLiabilitiesCurrent100.0100.0100.0100.0

us-gaap:PreferredStockSharesAuthorized



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-04-01
Value1000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01000.01000000.01000000.01000000.0
Percentage of PreferredStockSharesAuthorized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PreferredStockSharesIssued



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-302016-04-01
Value0.00.00.00.00.00.00.00.00.021000.021000.021000.021.021000.021000.021000.0
Percentage of PreferredStockSharesIssued0.00.00.00.00.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PrepaidExpenseCurrent



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-03-31
Value110118118164162162162184177165
Percentage of PrepaidExpenseCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestructuringPlan

us-gaap:RestructuringAndRelatedCostCostIncurredToDate1

nlok:August2018Plan



Period End2020-04-03
Value48
Percentage of RestructuringAndRelatedCostCostIncurredToDate1100.0

nlok:August2019Plan



Period End2020-04-03
Value53
Percentage of RestructuringAndRelatedCostCostIncurredToDate1110.4

nlok:November2019Plan



Period End2020-04-03
Value423
Percentage of RestructuringAndRelatedCostCostIncurredToDate1881.2

symc:August2019Plan



Period End2020-01-03
Value53
Percentage of RestructuringAndRelatedCostCostIncurredToDate10.0

symc:November2019Plan



Period End2020-01-03
Value285
Percentage of RestructuringAndRelatedCostCostIncurredToDate10.0

us-gaap:RestructuringCostAndReserve, us-gaap:RestructuringPlan

us-gaap:RestructuringAndRelatedCostExpectedCost1

us-gaap:ContractTermination, nlok:November2019Plan



Period End2020-04-03
Value110
Percentage of RestructuringAndRelatedCostExpectedCost1100.0

us-gaap:EmployeeSeverance, nlok:November2019Plan



Period End2020-04-03
Value200
Percentage of RestructuringAndRelatedCostExpectedCost1181.8

us-gaap:FacilityClosing, nlok:November2019Plan



Period End2020-04-03
Value240
Percentage of RestructuringAndRelatedCostExpectedCost1218.2

us-gaap:RestructuringPlan

nlok:November2019Plan



Period End2020-04-03
Value550
Percentage of RestructuringAndRelatedCostExpectedCost1500.0

us-gaap:RestructuringCostAndReserve, us-gaap:RestructuringPlan

us-gaap:RestructuringReserve

us-gaap:ContractTermination, nlok:November2019Plan



Period End2020-04-032019-03-29
Value70
Percentage of RestructuringReserve100.00.0

us-gaap:ContractTermination, symc:November2019Plan



Period End2020-01-032019-03-29
Value630
Percentage of RestructuringReserve0.00.0

us-gaap:EmployeeSeverance, nlok:August2018Plan



Period End2020-04-032019-03-29
Value011
Percentage of RestructuringReserve0.00.0

us-gaap:EmployeeSeverance, nlok:November2019Plan



Period End2020-04-032019-03-29
Value350
Percentage of RestructuringReserve500.00.0

us-gaap:EmployeeSeverance, symc:August2018Plan



Period End2020-01-032019-03-29
Value311
Percentage of RestructuringReserve0.00.0

us-gaap:EmployeeSeverance, symc:August2019Plan



Period End2020-01-032019-03-29
Value20
Percentage of RestructuringReserve0.00.0

us-gaap:EmployeeSeverance, symc:November2019Plan



Period End2020-01-032019-03-29
Value410
Percentage of RestructuringReserve0.00.0

us-gaap:OtherRestructuring, nlok:August2018Plan



Period End2020-04-032019-03-29
Value02
Percentage of RestructuringReserve0.00.0

us-gaap:OtherRestructuring, symc:August2018Plan



Period End2020-01-032019-03-29
Value12
Percentage of RestructuringReserve0.00.0

us-gaap:OtherRestructuring, symc:November2019Plan



Period End2020-01-032019-03-29
Value1000000.00.0
Percentage of RestructuringReserve0.00.0

us-gaap:RestructuringPlan

nlok:August2018Plan



Period End2020-04-032019-03-29
Value013
Percentage of RestructuringReserve0.00.0

nlok:November2019Plan



Period End2020-04-032019-03-29
Value420
Percentage of RestructuringReserve600.00.0

symc:August2018Plan



Period End2020-01-032019-03-29
Value413
Percentage of RestructuringReserve0.00.0

symc:August2019Plan



Period End2020-01-032019-03-29
Value20
Percentage of RestructuringReserve0.00.0

symc:November2019Plan



Period End2020-01-032019-03-29
Value1050
Percentage of RestructuringReserve0.00.0

us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber

us-gaap:PerformanceShares



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-04-012015-04-032014-03-28
Value2133245339986221
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedStock



Period End2020-01-032019-10-042019-07-052018-12-282018-09-282018-06-292017-12-292017-09-292017-06-302013-03-292012-03-302011-04-01
Value001111110191818
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber0.00.033.325.020.033.311.111.10.00.00.00.0

us-gaap:RestrictedStockUnitsRSU



Period End2020-04-032020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-04-012015-04-032014-03-28
Value782022212121201921232323172619
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber350.0800.0666.7733.31050.0525.0420.0666.7633.3233.3255.6287.5383.3850.01300.01900.0

us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:EmployeeStock



Period End2020-04-032019-03-292018-03-30
Value5.176.226.53
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue100.0100.0100.0

us-gaap:PerformanceShares



Period End2020-04-032019-03-292018-03-302017-03-31
Value22.6827.0430.021.05
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue438.7434.7459.40.0

us-gaap:RestrictedStockUnitsRSU



Period End2020-04-032019-03-292018-03-302017-03-312016-04-012015-04-032014-03-28
Value21.3323.3625.0621.2622.7222.2320.61
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue412.6375.6383.80.00.00.00.0

us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant

us-gaap:EmployeeStock



Period End2020-04-032019-03-29
Value3336
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant100.0100.0

us-gaap:PlanName

nlok:A2013EquityIncentivePlan



Period End2020-04-03
Value21
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant63.6

us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber

us-gaap:EmployeeStockOption



Period End2020-01-032019-10-042019-07-052018-12-282018-09-282018-06-29
Value246121211
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber100.0100.0100.0100.0100.0100.0

us-gaap:StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1



Period End2020-04-032020-01-032019-08-062018-12-282017-03-312016-07-012016-04-012015-07-032015-04-032014-03-282013-03-29
Value57812361600800800790790106811586581158
Percentage of StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest



Period End2020-01-032019-10-042019-03-292018-12-282018-09-282018-03-302015-04-032015-01-022014-10-032014-07-042014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-04-022009-04-032008-03-28
Value8677611257385906595050235935591058975838579757585657549754215156510350825172473546384644460545414548414711229
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-01-032019-03-29
Value0.0-1000000.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.0-0.0

us-gaap:AccumulatedOtherComprehensiveIncome



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-03-312016-04-012015-04-032014-03-282013-03-292012-03-302011-12-302011-09-302011-07-012011-04-012010-04-022009-04-032008-03-28
Value12-2-12-7-14-17-2041222104194197173171171171171159186160
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.1-0.00.0-0.1-0.2-0.30.00.10.00.01.83.33.63.33.63.73.73.73.54.51.4

us-gaap:AccumulatedTranslationAdjustment



Period End2020-01-032019-03-29
Value12-5
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.1-0.1

us-gaap:AociAttributableToNoncontrollingInterest



Period End2020-01-032019-03-29
Value0.0-1000000.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.0-0.0

us-gaap:CommonStockIncludingAdditionalPaidInCapital



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-03-312016-04-012015-04-03
Value48534816470148124804486747804691423643096101
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest55.978.80.083.981.381.80.093.40.00.0102.8

us-gaap:RetainedEarnings



Period End2020-01-032019-10-042019-07-052019-03-292018-12-282018-09-282018-06-292018-03-302017-03-312016-04-012015-04-032014-03-282013-03-292012-03-302011-04-012010-04-022009-04-032008-03-28
Value38121298561933111611001158328-761-655-270-1148-2046-2799-4012-4609-53361574
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest43.921.20.016.318.918.50.06.50.00.0-4.5-19.8-37.7-54.1-87.1-101.3-128.714.0

us-gaap:TaxCutsAndJobsActOf2017TransitionTaxForAccumulatedForeignEarningsLiabilityNoncurrent



Period End2020-04-032020-01-032019-10-042019-07-052019-03-29
Value615626638638703
Percentage of TaxCutsAndJobsActOf2017TransitionTaxForAccumulatedForeignEarningsLiabilityNoncurrent100.0100.0100.0100.0100.0

us-gaap:ValueAddedTaxReceivable



Period End2020-04-032019-07-052019-03-292018-03-30
Value88766924
Percentage of ValueAddedTaxReceivable100.0100.0100.0100.0

Line plots across dimensions of each concept

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementGeographical


us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService


us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:TimingOfTransferOfGoodOrService


us-gaap:StockholdersEquity us-gaap:StatementEquityComponents


us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType


us-gaap:PropertyPlantAndEquipmentNet us-gaap:StatementGeographical


us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass


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


us-gaap:StockholdersEquity us-gaap:StatementEquityComponents


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


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


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