LNC


Line plots across dimensions of each concept
Tables

Table of contents



us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesOutstanding
us-gaap:StatementClassOfStock

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:Revenues
us-gaap:StatementBusinessSegments

us-gaap:PremiumsEarnedNet

us-gaap:NetInvestmentIncome
us-gaap:DerivativeInstrumentRisk, us-gaap:StatementEquityComponents

us-gaap:OtherIncome

us-gaap:PolicyholderBenefitsAndClaimsIncurredNet

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

us-gaap:IncomeTaxExpenseBenefit
us-gaap:StatementEquityComponents

us-gaap:NetIncomeLoss
us-gaap:StatementBusinessSegments
us-gaap:StatementEquityComponents

us-gaap:Assets

us-gaap:Liabilities

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:Goodwill

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:StatementBusinessSegments
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquireInvestments

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:ProceedsFromIssuanceOfLongTermDebt
us-gaap:DebtInstrument

us-gaap:RepaymentsOfLongTermDebt
us-gaap:DebtInstrument

us-gaap:PaymentsOfDividends

us-gaap:PaymentsOfDividends

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:RepaymentsOfLongTermDebt
us-gaap:DebtInstrument

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
us-gaap:CededCreditRisk

lnc:AlternativeInvestmentsAsPercentageOfOverallInvestedAssets

lnc:AmortizationAssociatedWithRealizedGainLossOnCertainInvestments

lnc:AmortizationOfDeferredGainOnBusinessSoldThroughReinsurance
us-gaap:ConsolidationItems
lnc:AmortizationOfDfelAssociatedWithBenefitRatioUnlocking
us-gaap:IncomeStatementLocation
lnc:AmountOfIncomeExpenseLineItemsInStatementOfFinancialPositionThatHedgesAreRecorded
us-gaap:StatementEquityComponents
lnc:AssociatedAmortizationOfDacVobaDsiAndDfel

lnc:AssumedAcquisitionOfSharesWithAssumedProceedsAndBenefitsFromExercisingStockOptionsAtAverageMarketPrice
us-gaap:StatementEquityComponents
lnc:AvailableForSaleAndDerivativesAssociatedAmortizationOfDacVobaDsiAndDfel
us-gaap:StatementEquityComponents
lnc:AvailableForSaleAndDerivativesChangeInForeignCurrencyExchangeRateAdjustment
us-gaap:StatementEquityComponents
lnc:AvailableForSaleChangeInDacVobaDsiAndOtherContractHolderFunds

lnc:AverageStockOptionsOutstandingDuringPeriod
us-gaap:ConsolidationItems
lnc:BenefitRatioUnlocking

lnc:ChangeInFundsWithheldReinsuranceLiabilityAndReinsuranceRecoverables

lnc:CommonStockBasicBasis

lnc:CommonStockDilutedBasis

lnc:CommonStockIssuedForBenefitPlans

lnc:DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotPreviouslyRecordedGross
us-gaap:FinancialInstrument

lnc:DeferredAcquisitionCostsValueOfBusinessAcquiredDeferredSalesInducementsAndDeferredFrontEndLoadsDeferralsAndInterestNetOfAmortization

lnc:DepositsOfFixedAccountValuesIncludingFixedPortionOfVariable
us-gaap:StatementEquityComponents
lnc:DerivativesChangeInDacVobaDsiAndDfel
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:IncomeStatementLocation, us-gaap:StatementEquityComponents
lnc:DerivativesReclassificationAdjustmentForGainsLossesIncludedInNetIncome
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
lnc:DerivativesUnrealizedGainLossIncomeTaxBenefitExpense
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:StatementEquityComponents
lnc:DerivativesUnrealizedHoldingGainsLossesArisingDuringPeriod
us-gaap:ConsolidationItems
lnc:ExcludedRealizedGainLossAfterTax
us-gaap:ConsolidationItems
lnc:ExcludedRealizedGainLossPreTax

lnc:FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnobservableInputInvestmentHoldingsMovementsCalls
us-gaap:FinancialInstrument, us-gaap:InvestmentType

lnc:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetMaturities
us-gaap:FinancialInstrument
us-gaap:FinancialInstrument, us-gaap:InvestmentType

lnc:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesMaturitiesSettlementsCalls
us-gaap:FinancialInstrument
us-gaap:FinancialInstrument, us-gaap:InvestmentType
us-gaap:FinancingReceivablePortfolioSegment
lnc:FinancingReceivableNumberOfLoansPastDue
us-gaap:FinancingReceivablePortfolioSegment
lnc:ImpairedFinancingReceivableNumberOfImpairedLoans
us-gaap:StatementEquityComponents
lnc:IncomeTaxExpenseRelatedToReclassificationOfOci

lnc:IncreaseDecreaseInCashCollateralForDerivativeInvestments

lnc:IncreaseDecreaseInCashCollateralForSecuritiesLendingAgreements

lnc:IncreaseDecreaseInCashCollateralForSecuritiesPledgedForFhlbi

lnc:IncreaseDecreaseInCollateralForLoanedSecurities

lnc:IndexedAnnuityAndUniversalLifeNetDerivativeResultsAssociatedAmortizationIncomeExpenses

lnc:IndexedAnnuityAndUniversalLifeNetDerivativeResultsGrossGainLoss

lnc:InsuranceFees

lnc:IssuanceOfMortgageLoansOnRealEstate

lnc:LiabilitiesForGuaranteesOnLongDurationContractsIncreaseDecreaseInReserves

lnc:NetChangeInCollateralOnInvestmentsAndDerivatives
us-gaap:StatementEquityComponents
lnc:OtherComprehensiveIncomeLossTaxReclassificationAdjustmentForGainsLossesInNetIncome

lnc:OtherInvestmentsNetRealizedGainLoss

lnc:PaymentsToAcquireAlternativeInvestments

lnc:PercentOfPermanentLifeInsuranceSales

lnc:PriorYearClaimsAndClaimsAdjustmentExpenseInterest

lnc:PriorYearClaimsAndClaimsAdjustmentExpenseOtherExcludingInterest

lnc:ProceedsFromSaleAndRepaymentOfAlternativeInvestments

lnc:ProvisionForLoanLossesExpensedAllowanceRecorded
us-gaap:FinancingReceivablePortfolioSegment

lnc:RealizedGainLossExcludingOtherThanTemporaryImpairmentLossesOnSecurities

lnc:RealizedGainLossOnMarkToMarketOnCertainInstruments
us-gaap:InvestmentType

lnc:RepaymentAndMaturitiesOfMortgageLoansOnRealEstate

lnc:StrategicDigitizationExpense

lnc:TotalRealizedGainLossRelatedToCertainInvestments

lnc:TransfersToAndFromSeparateAccountsNet

lnc:VariableAnnuityNetDerivativesResultsAssociatedAmortizationIncomeExpense

lnc:VariableAnnuityNetDerivativesResultsGrossGainLoss

lnc:WithdrawalsOfFixedAccountValuesIncludingFixedPortionOfVariable
us-gaap:FinancialInstrument
us-gaap:AvailableForSaleSecuritiesGrossRealizedGains
us-gaap:FinancialInstrument
us-gaap:AvailableForSaleSecuritiesGrossRealizedLosses

us-gaap:BenefitsLossesAndExpenses
us-gaap:ConsolidationItems
us-gaap:BusinessCombinationAcquisitionRelatedCosts

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation, us-gaap:IncomeStatementLocation
us-gaap:ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation, us-gaap:IncomeStatementLocation
us-gaap:ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge1

us-gaap:CommonStockDividendsPerShareDeclared

us-gaap:ComprehensiveIncomeNetOfTax
us-gaap:ConcentrationRiskByBenchmark, us-gaap:ConcentrationRiskByType
us-gaap:ConcentrationRiskPercentage1
us-gaap:StatementGeographical, us-gaap:ConcentrationRiskByBenchmark, us-gaap:ConcentrationRiskByType, us-gaap:FinancingReceivablePortfolioSegment

us-gaap:DebtAndEquitySecuritiesRealizedGainLoss
us-gaap:DerivativeInstrumentRisk, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotPreviouslyRecorded
us-gaap:FinancialInstrument
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation, us-gaap:IncomeStatementLocation
us-gaap:DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation, us-gaap:IncomeStatementLocation
us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
us-gaap:StatementEquityComponents
us-gaap:DividendsCommonStockCash

us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate

us-gaap:EquitySecuritiesFvNiRealizedGainLoss
us-gaap:FinancialInstrument
us-gaap:FinancialInstrument, us-gaap:InvestmentType
us-gaap:FairValueAssetRecurringBasisStillHeldUnrealizedGainLossOci
us-gaap:InvestmentType

us-gaap:FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss
us-gaap:FinancialInstrument, us-gaap:IncomeStatementLocation

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1
us-gaap:FinancialInstrument
us-gaap:FinancialInstrument, us-gaap:InvestmentType

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss
us-gaap:FinancialInstrument
us-gaap:FinancialInstrument, us-gaap:InvestmentType

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues
us-gaap:FinancialInstrument
us-gaap:FinancialInstrument, us-gaap:InvestmentType

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales
us-gaap:FinancialInstrument
us-gaap:FinancialInstrument, us-gaap:InvestmentType

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements
us-gaap:FinancialInstrument
us-gaap:FinancialInstrument, us-gaap:InvestmentType

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3
us-gaap:FinancialInstrument
us-gaap:FinancialInstrument, us-gaap:InvestmentType

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet
us-gaap:FinancialInstrument
us-gaap:FinancialInstrument, us-gaap:InvestmentType

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3
us-gaap:FinancialInstrument, us-gaap:InvestmentType

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPurchasesSalesIssuesSettlements
us-gaap:FinancialInstrument
us-gaap:FinancialInstrument, us-gaap:InvestmentType

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationTransfersNet
us-gaap:FinancialInstrument
us-gaap:FinancialInstrument, us-gaap:InvestmentType

us-gaap:IncreaseDecreaseInAccruedInvestmentIncomeReceivable

us-gaap:IncreaseDecreaseInAccruedLiabilities

us-gaap:IncreaseDecreaseInIncomeTaxes

us-gaap:IncreaseDecreaseInOtherPolicyholderFunds

us-gaap:IncreaseDecreaseInPremiumsReceivable

us-gaap:IncrementalCommonSharesAttributableToNonvestedSharesWithForfeitableDividends

us-gaap:InterestCreditedToPolicyholdersAccountBalances

us-gaap:InterestExpenseDebt
us-gaap:DerivativeInstrumentRisk, us-gaap:StatementEquityComponents

us-gaap:LiabilitiesForGuaranteesOnLongDurationContractsPaymentForBenefits

us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1

us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1

us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1
us-gaap:StatementEquityComponents
us-gaap:NonoperatingIncomeExpense
us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax
us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax
us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax
us-gaap:InvestmentType
us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax

us-gaap:OtherCostAndExpenseOperating
us-gaap:DerivativeInstrumentRisk, us-gaap:StatementEquityComponents

us-gaap:OtherNoncashIncomeExpense

us-gaap:PaymentsForLossesAndLossAdjustmentExpense

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsForProceedsFromPolicyLoans

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities

us-gaap:ProceedsFromPaymentsForTradingSecurities

us-gaap:ProceedsFromSaleMaturityAndCollectionsOfInvestments
us-gaap:StatementEquityComponents
us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax
us-gaap:StatementEquityComponents
us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
us-gaap:StatementEquityComponents
us-gaap:ReclassificationFromAociCurrentPeriodTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:StatementClassOfStock
us-gaap:StockIssuedDuringPeriodSharesShareBasedCompensation
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation
us-gaap:StatementClassOfStock
us-gaap:StockRepurchasedAndRetiredDuringPeriodShares
us-gaap:StatementEquityComponents
us-gaap:StockRepurchasedAndRetiredDuringPeriodValue

us-gaap:SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense
us-gaap:BalanceSheetLocation
lnc:AmortizedCostOfHedgedAsset
us-gaap:BalanceSheetLocation
lnc:AmortizedCostOfHedgedLiabilities
us-gaap:InvestmentType
lnc:AmortizedCostOfPortfolioRatedBelowInvestmentGrade
us-gaap:FairValueConcentrationOfRiskDisclosureItems
lnc:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanSixMonthsAggregateLosses
us-gaap:FairValueConcentrationOfRiskDisclosureItems
lnc:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanSixMonthsFairValue
us-gaap:InvestmentType
lnc:AvailableForSaleSecuritiesFairValueDisclosurePercentInvestmentGrade
us-gaap:FairValueConcentrationOfRiskDisclosureItems
lnc:AvailableForSaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsLessThanSixMonths
us-gaap:RelatedPartyTransactionsByRelatedParty
lnc:CarryingAmountOfInvestmentsInQualifiedAffordableHousingProjects

lnc:CollateralPayableHeldForDerivativeInvestmentsCarryingValue

lnc:CollateralPayableHeldForDerivativeInvestmentsFairValue
us-gaap:CreditDerivativesByContractType
lnc:CreditDerivativeMaximumExposureNetOfCounterpartyThresholds
us-gaap:Range, us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType, us-gaap:MeasurementInputType, us-gaap:ValuationTechnique
lnc:DebtSecuritiesAvailableForSaleAndTradingMeasurementInput
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanToValue
lnc:DebtServiceCoverageRatio
us-gaap:LoanToValue
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanToValue
lnc:DebtServiceCoverageRatioCurrentFiscalYear
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanToValue
lnc:DebtServiceCoverageRatioOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanToValue
lnc:DebtServiceCoverageRatioYearFiveOriginatedFourYearsBeforeCurrentFiscalYear
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanToValue
lnc:DebtServiceCoverageRatioYearFourOriginatedThreeYearsBeforeCurrentFiscalYear
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanToValue
lnc:DebtServiceCoverageRatioYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanToValue
lnc:DebtServiceCoverageRatioYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear

lnc:DerivativeInstrumentsGrossAmountOfRecognizedLiabilities

lnc:DerivativeInstrumentsGrossAmountsOfRecognizedAssets

lnc:ExposureAssociatedWithCollateralizationEvents
us-gaap:InvestmentType
lnc:FairValueOfPortfolioRatedBelowInvestmentGrade
us-gaap:FairValueByMeasurementBasis
lnc:FutureContractBenefitsIndexedAnnuityContractsFairValueDisclosure
us-gaap:FairValueByMeasurementBasis, us-gaap:InvestmentType
lnc:IndexedAnnuityCededEmbeddedDerivativesFairValueDisclosure

lnc:LongTermDebtAndFairValueHedges
us-gaap:FairValueByMeasurementBasis
lnc:LongTermDebtFairValueDisclosure

lnc:MortgageLoansOnRealEstateUnamortizedPremiumDiscount
us-gaap:FinancingReceivablePortfolioSegment

lnc:NumberOfPartnershipsInAlternativeInvestmentPortfolio
us-gaap:FairValueByMeasurementBasis, us-gaap:FinancialInstrument, us-gaap:InvestmentType
lnc:OtherAssetsGuaranteedLivingBenefitsEmbeddedDerivativesReservesFairValueDisclosureAssets
us-gaap:FairValueByMeasurementBasis
lnc:OtherContractHolderFundsAccountValueOfCertainInvestmentContractsFairValueDisclosure
us-gaap:FairValueByMeasurementBasis
lnc:OtherContractHolderFundsRemainingGuaranteedInterestAndSimilarContractsFairValueDisclosure
us-gaap:FairValueByMeasurementBasis, us-gaap:FinancialInstrument, us-gaap:InvestmentType
lnc:OtherLiabilitiesGuaranteedLivingBenefitsEmbeddedDerivativesReservesFairValueDisclosure

lnc:PercentOfPermanentLifeInsuranceInForce
us-gaap:ProductOrService
lnc:PercentOfTotalVariableAnnuitySeparateAccountValues
us-gaap:FinancialInstrumentPerformanceStatus, us-gaap:FinancingReceivablePortfolioSegment
lnc:PercentageOfTotalMortgageLoans
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanToValue
us-gaap:LoanToValue

lnc:ReinsuranceRelatedEmbeddedDerivatives
us-gaap:FairValueByMeasurementBasis

lnc:RemainingLife11To30Years
us-gaap:DerivativeInstrumentRisk

lnc:RemainingLife1To5Years
us-gaap:DerivativeInstrumentRisk

lnc:RemainingLife6To10Years
us-gaap:DerivativeInstrumentRisk

lnc:RemainingLifeLessThan1Year
us-gaap:DerivativeInstrumentRisk

lnc:RemainingLifeOver30Years
us-gaap:DerivativeInstrumentRisk
us-gaap:CededCreditRisk
lnc:ReservesAssociatedWithModifiedCoinsurance
us-gaap:CededCreditRisk, us-gaap:CededCreditRiskCollateralization

lnc:SecuritiesPledgedForFederalHomeLoanBankOfIndianapolisCarryingValue

lnc:SecuritiesPledgedForFederalHomeLoanBankOfIndianapolisFairValue

lnc:SecuritiesPledgedUnderSecuritiesLendingAgreementsCarryingValue
us-gaap:AssetsSoldUnderAgreementsToRepurchaseMaturityPeriods
us-gaap:AssetsSoldUnderAgreementsToRepurchaseMaturityPeriods, us-gaap:FinancialInstrument
us-gaap:FinancialInstrument

lnc:SecuritiesPledgedUnderSecuritiesLendingAgreementsFairValue
us-gaap:FairValueByMeasurementBasis
lnc:SeparateAccountAssetsFairValueDisclosure

lnc:TotalPayablesForCollateralOnInvestmentFairValue
us-gaap:FinancialInstrument, us-gaap:HedgingDesignation
lnc:ViesDerivativeAssetNotionalAmount

us-gaap:AccruedInvestmentIncomeReceivable
us-gaap:CededCreditRisk

us-gaap:AssetsFairValueDisclosure
us-gaap:FinancialInstrument, us-gaap:InvestmentType
us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
us-gaap:InvestmentType
us-gaap:FinancialInstrument, us-gaap:InvestmentType
us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
us-gaap:InvestmentType

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
us-gaap:FinancialInstrument, us-gaap:InvestmentType
us-gaap:InvestmentType
us-gaap:FairValueConcentrationOfRiskDisclosureItems
us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss
us-gaap:FinancialInstrument, us-gaap:InvestmentType
us-gaap:InvestmentType
us-gaap:FairValueConcentrationOfRiskDisclosureItems
us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss
us-gaap:FinancialInstrument, us-gaap:InvestmentType
us-gaap:InvestmentType
us-gaap:FairValueConcentrationOfRiskDisclosureItems
us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue
us-gaap:FinancialInstrument, us-gaap:InvestmentType
us-gaap:InvestmentType
us-gaap:FinancialInstrument, us-gaap:InvestmentType
us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
us-gaap:InvestmentType
us-gaap:FinancialInstrument, us-gaap:InvestmentType
us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue
us-gaap:InvestmentType
us-gaap:FairValueConcentrationOfRiskDisclosureItems
us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue
us-gaap:FinancialInstrument, us-gaap:InvestmentType
us-gaap:InvestmentType

us-gaap:AvailableForSaleSecuritiesDebtSecurities
us-gaap:CededCreditRisk
us-gaap:FairValueByMeasurementBasis, us-gaap:FinancialInstrument
us-gaap:FinancialInstrument, us-gaap:InvestmentType
us-gaap:InvestmentType
us-gaap:FairValueConcentrationOfRiskDisclosureItems
us-gaap:AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions1
us-gaap:InvestmentType
us-gaap:FairValueConcentrationOfRiskDisclosureItems
us-gaap:AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsGreaterThanOrEqualToOneYear
us-gaap:FairValueByMeasurementBasis
us-gaap:CashAndCashEquivalentsFairValueDisclosure

us-gaap:CommonStockValueOutstanding
us-gaap:CreditDerivativesByContractType
us-gaap:CreditDerivativeMaximumExposureUndiscounted
us-gaap:CreditRatingStandardPoors, us-gaap:CreditDerivativesByContractType
us-gaap:CreditRatingStandardPoors, us-gaap:CreditDerivativesByContractType
us-gaap:CreditRiskDerivativesAtFairValueNet

us-gaap:DebtLongtermAndShorttermCombinedAmount

us-gaap:DebtSecuritiesAvailableForSaleAllowanceForCreditLoss
us-gaap:FinancialInstrument
us-gaap:FinancialInstrument, us-gaap:InvestmentType
us-gaap:InvestmentType

us-gaap:DeferredPolicyAcquisitionCostsAndValueOfBusinessAcquired
us-gaap:CededCreditRisk
us-gaap:DepositAssets

us-gaap:DepositsReceivedForSecuritiesLoanedAtCarryingValue

us-gaap:DerivativeAssetFairValueGrossLiability
us-gaap:Range, us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType, us-gaap:MeasurementInputType, us-gaap:ValuationTechnique
us-gaap:DerivativeAssetMeasurementInput
us-gaap:Range, us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:MeasurementInputType, us-gaap:ValuationTechnique

us-gaap:DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowed

us-gaap:DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedAmountOffsetAgainstCollateral

us-gaap:DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedCollateralObligationToReturnCash

us-gaap:DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedCollateralObligationToReturnSecurities

us-gaap:DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedGross

us-gaap:DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedLiability

us-gaap:DerivativeAssets
us-gaap:CededCreditRisk
us-gaap:FairValueByMeasurementBasis

us-gaap:DerivativeCollateralObligationToReturnCash
us-gaap:CreditRatingStandardPoors

us-gaap:DerivativeCollateralObligationToReturnSecurities

us-gaap:DerivativeCollateralRightToReclaimCash
us-gaap:CreditRatingStandardPoors
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation
us-gaap:DerivativeFairValueOfDerivativeAsset
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation
us-gaap:DerivativeInstrumentRisk

us-gaap:DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral

us-gaap:DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation
us-gaap:DerivativeFairValueOfDerivativeLiability
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation
us-gaap:DerivativeInstrumentRisk

us-gaap:DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral

us-gaap:DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral
us-gaap:FairValueByMeasurementBasis, us-gaap:InvestmentType
us-gaap:DerivativeLiabilities

us-gaap:DerivativeLiabilityCollateralRightToReclaimCashOffset

us-gaap:DerivativeLiabilityFairValueGrossAsset
us-gaap:Range, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByLiabilityClass, us-gaap:InvestmentType, us-gaap:MeasurementInputType, us-gaap:ValuationTechnique
us-gaap:DerivativeLiabilityMeasurementInput
us-gaap:Range, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByLiabilityClass, us-gaap:MeasurementInputType, us-gaap:ValuationTechnique

us-gaap:DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoaned

us-gaap:DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAmountOffsetAgainstCollateral

us-gaap:DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAsset

us-gaap:DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedCollateralRightToReclaimCash

us-gaap:DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedGross

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

us-gaap:EquitySecuritiesFvNi
us-gaap:CededCreditRisk
us-gaap:FairValueByMeasurementBasis
us-gaap:Range, us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType, us-gaap:MeasurementInputType, us-gaap:ValuationTechnique
us-gaap:EquitySecuritiesFvNiMeasurementInput
us-gaap:ConcentrationRiskByBenchmark, us-gaap:ConcentrationRiskByType
us-gaap:FairValueConcentrationOfRiskInvestments

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs
us-gaap:FinancialInstrument
us-gaap:FinancialInstrument, us-gaap:InvestmentType

us-gaap:FairValueOptionAggregateDifferencesLoansAndLongTermReceivables
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancingReceivableAllowanceForCreditLosses
lnc:CumulativeEffectPeriodOfAdoption
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivablePortfolioSegment, lnc:CumulativeEffectPeriodOfAdoption
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanToValue
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanToValue
us-gaap:FinancialInstrumentPerformanceStatus, us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivableOriginatedInCurrentFiscalYear
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanToValue
us-gaap:FinancialInstrumentPerformanceStatus, us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanToValue
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanToValue
us-gaap:FinancialInstrumentPerformanceStatus, us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanToValue

us-gaap:FinancingReceivableRecordedInvestmentCurrent
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancingReceivableRecordedInvestmentNonaccrualStatus
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivablesPeriodPastDue
us-gaap:FinancingReceivableRecordedInvestmentPastDue
us-gaap:FinancingReceivablesPeriodPastDue

us-gaap:FundsHeldUnderReinsuranceAgreementsAsset

us-gaap:FundsHeldUnderReinsuranceAgreementsLiability
us-gaap:BalanceSheetLocation
us-gaap:HedgedAssetFairValueHedgeCumulativeIncreaseDecrease
us-gaap:BalanceSheetLocation
us-gaap:HedgedLiabilityFairValueHedgeCumulativeIncreaseDecrease
us-gaap:DerivativeInstrumentRisk
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance

us-gaap:Investments

us-gaap:LiabilitiesFairValueDisclosure
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument, us-gaap:InvestmentType
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType, us-gaap:ValuationTechnique
us-gaap:FinancialInstrument, us-gaap:InvestmentType

us-gaap:LiabilitiesForGuaranteesOnLongDurationContractsGuaranteedBenefitLiabilityGross

us-gaap:LiabilityForClaimsAndClaimsAdjustmentExpense

us-gaap:LiabilityForFuturePolicyBenefitsAndUnpaidClaimsAndClaimsAdjustmentExpense

us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet

us-gaap:LoansInsurancePolicy

us-gaap:LoansReceivableFairValueDisclosure
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:GuaranteedInsuranceContractTypeOfGuarantee
us-gaap:NetAmountAtRiskByProductAndGuaranteeNetAmountAtRisk
us-gaap:GuaranteedInsuranceContractTypeOfGuarantee
us-gaap:NetAmountAtRiskByProductAndGuaranteeSeparateAccountValue
us-gaap:ProductOrService
us-gaap:ProductOrService, us-gaap:InvestmentType
us-gaap:AdjustmentsForNewAccountingPronouncements
us-gaap:NewAccountingPronouncementOrChangeInAccountingPrincipleCumulativeEffectOfChangeOnEquityOrNetAssets1
us-gaap:FinancialInstrumentPerformanceStatus, us-gaap:FinancingReceivablePortfolioSegment
us-gaap:NotesReceivableGross
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanToValue
us-gaap:LoanToValue

us-gaap:NotesReceivableNet
us-gaap:CededCreditRisk, us-gaap:FinancialInstrument
us-gaap:FairValueByMeasurementBasis
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:CreditRatingStandardPoors, us-gaap:CreditDerivativesByContractType
us-gaap:NumberOfCreditRiskDerivativesHeld

us-gaap:OtherAssets

us-gaap:OtherInvestments
us-gaap:CededCreditRisk
us-gaap:FairValueByMeasurementBasis
us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:OtherLiabilities

us-gaap:OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld

us-gaap:PolicyholderFunds

us-gaap:PremiumsAndOtherReceivablesNet

us-gaap:ReinsuranceRecoverableForUnpaidClaimsAndClaimsAdjustments

us-gaap:ReinsuranceRecoverables

us-gaap:SecuritiesBorrowed

us-gaap:SecuritiesBorrowedAmountOffsetAgainstCollateral

us-gaap:SecuritiesBorrowedGross

us-gaap:SecuritiesLoaned

us-gaap:SecuritiesLoanedAmountOffsetAgainstCollateral

us-gaap:SecuritiesLoanedGross

us-gaap:SeparateAccountAssets

us-gaap:SeparateAccountsLiability

us-gaap:TradingSecuritiesDebt
us-gaap:CededCreditRisk
us-gaap:FairValueByMeasurementBasis

Tables

  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:CommonStockSharesIssued ▁▂▂▂▃▃▅▅▅▅▆▆▇▇▇█193196198200202205214217218218219222224226228232NA243247250252256259260263262262264268271275279285291301308313315NANANANANANANA
us-gaap:CommonStockSharesOutstanding ▁▁▁▁▂▂▂▂▂▂▂▃▃▃▃▄▄▄▄▄▄▅▅▅▅▅▅▅▅▅▆▆▆▇▇███193196198200202205214217218218219222224226228239239243247250252256259260263262262264268271275279285291301308313315NANANANANANANA
 us-gaap:CommonStockSharesOutstanding us-gaap:StatementClassOfStock us-gaap:CommonStock▁▁▁▂▂▂▂▃▃▃▃▃▃▃▄▄▄▅▅▅▅▆▆▆▆▆▆▆▆▇▇▇██193196198200202205214217218218219222224226228232239243247250252256259260263262262264268271275279285291NANANA315NANANANANANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding 197NA201202205NA218221222NA223227230NA233239245NA253255260NA266268272NA273275278NA284289295NA311997683319915069322NA325314312NA310262NA
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic 195NA199201204NA215217218NA220223225NA231236241NA249251255NA260262262NA263266270NA277282289NA304779641311391263315NA316304302NA301260NA
us-gaap:EarningsPerShareBasic ▄▆▃▆▅▆▆▆▆█▆▆▆▅▆▅▅▅▅▅▅▅▆▅▅▅▅▅▅▅▅▅▅▂▄▅▅▄▅▄▅▄▄▃▁0.272.18-0.811.81.231.892.271.761.683.731.891.841.930.832.021.370.861.150.911.371.171.351.691.521.251.341.281.190.891.171.451.150.85-1.730.471.041.080.620.780.350.880.280.45-0.62-2.27
us-gaap:EarningsPerShareDiluted ▄▆▃▆▅▆▆▆▆█▆▆▆▅▆▅▅▅▅▅▅▅▆▅▅▅▅▅▅▅▅▅▅▂▄▅▅▄▅▄▅▄▄▃▁0.152.15-0.831.791.221.82.241.71.643.671.871.811.890.822.01.350.821.140.871.351.151.321.651.481.211.291.231.150.861.141.411.10.83-1.730.441.011.050.60.750.330.850.270.44-0.62-2.27
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:Revenues ▇▇█▇▆█▇▆▅▆▅▅▅▄▅▅▄▄▆▅▅▆▅▅▄▄▄▄▃▄▄▄▃▃▃▃▃▃▃▃▃▂▂▁▂442543444638431039654531426440203609366935113577350032553525330732433171371633813304368534113282317631223009299928442964295428992714257025482804271426622613260525272403208218832132
 us-gaap:Revenues us-gaap:StatementBusinessSegments lnc:AnnuitiesSegment1129NA111711561174NA111811061073NA107310761061NA10009831039NA1060991989NA944926909NA842817777NA745734731NANA735NANANANANANANANANA
 us-gaap:Revenues us-gaap:StatementBusinessSegments lnc:GroupProtectionSegment1224NA113711551138NA1128937553NA564541541NA534525534NA570617605NA598621610NA561575550NA517540504NANA501NANANANANANANANANA
 us-gaap:Revenues us-gaap:StatementBusinessSegments lnc:LifeSegment1821NA209818021700NA176616801660NA161416551606NA163015381478NA172714431432NA144613631337NA130112841245NA129612371227NANA1229NANANANANANANANANA
us-gaap:PremiumsEarnedNet 1373NA132513981446NA13231165777NA774801807NA708728816NA825782790NA741755739NA672674654637606630589573559594568555538551532524491542509
us-gaap:NetInvestmentIncome 1375NA123513551251NA127112321233NA123912621238NA125911991172NA125411871187NA121212071208NA118012131150118911461197116611301151118111911183113211201106112310719711013
us-gaap:OtherIncome 151NA147149147NA175160131NA153127122NA127119116NA123145135NA135133130NA13412711712512312411811611812312012111211710811210210486
us-gaap:PolicyholderBenefitsAndClaimsIncurredNet 2501NA250218521757NA162616611358NA126112871290NA92212081331NA132712201236NA111710791078NA9459919589238119458588186651028835787925839779764577575921
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments 34NA-250421268NA532451435NA510533475NA612414235NA268449362NA601537427NA442418305400418442307-45113944146825230333034813362-53-663
us-gaap:IncomeTaxExpenseBenefit -18NA-895816NA426668NA9212240NA1458927NA4110562NA16213998NA1051016658451186163-121161295755789335-19-46-76
 us-gaap:IncomeTaxExpenseBenefit us-gaap:StatementEquityComponents lnc:UnrealizedGainLossOnDerivativeInstruments1NANANA-1NANANANANANANA-2NANANA-2NANANA68NANANA2NANANANANANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLoss ▄▆▃▆▅▆▆▆▆█▆▆▆▅▆▆▅▅▅▆▅▆▆▆▆▆▆▅▅▆▆▆▅▁▅▆▆▅▅▅▅▄▅▃▁52431-161363252399490385367816418411435189467325208283227344300349439398329351337317239320402324245-513143325339196246255283102153-161-579
 us-gaap:NetIncomeLoss us-gaap:StatementBusinessSegments lnc:AnnuitiesSegment261NA169266250NA302275267NA277251281NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:NetIncomeLoss us-gaap:StatementBusinessSegments lnc:GroupProtectionSegment40NA616855NA634529NA41357NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:NetIncomeLoss us-gaap:StatementBusinessSegments lnc:LifeSegment171NA-245168157NA176150144NA121133130NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:NetIncomeLoss us-gaap:StatementBusinessSegments lnc:RetirementPlanServicesSegment40NA444239NA404343NA353737NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings52NA-161363252NA490385367NANANA435NANANA208NANANA300NANANA329NANANA239342402324245-514143326339195246256283102153-161-579
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:Assets ▇██▇▇▆▇▆▆▆▅▅▅▅▅▅▄▄▄▄▅▄▄▄▄▄▃▃▃▃▃▂▂▂▂▂▂▂▂▁▁▁318649334761325278322259314299298147303850298832279237281763276785271651267468261627266605263028255718251937249532255214258485253377248446249125241949236945229924223321224341218869215458211110208018202906197747201554198317193824190490180129181621177433NANANA
us-gaap:Liabilities ▇██▇▇▇▇▇▆▆▅▅▅▅▅▅▅▄▄▅▅▄▄▄▄▄▃▃▃▃▃▂▂▂▂▂▂▂▂▁▁▁302074315072305279303804297882283797288780283655263252264441260471255655252495247149250282247108241060238320235131240515242262237637232994233674227463223493216535210004209479203896200221196928194757188742182828187968185227181018176931167491169253165733NANANA
us-gaap:LiabilitiesAndStockholdersEquity ▇██▇▇▆▇▆▆▆▅▅▅▅▅▅▄▄▄▄▅▄▄▄▄▄▃▃▃▃▃▂▂▂▂▂▂▂▂▁▁▁318649334761325278322259314299298147303850298832279237281763276785271651267468261627266605263028255718251937249532255214258485253377248446249125241949236945229924223321224341218869215458211110208018202906197747201554198317193824190490180129181621177433NANANA
us-gaap:StockholdersEquity ▆██▇▆▅▅▅▆▇▆▆▅▅▆▆▅▄▅▅▆▆▅▅▅▄▄▄▅▅▅▅▄▅▅▄▄▄▄▄▄▃▃▂▁1657519689199991845516417143501507015177159851732216314159961497314478163231592014658136171440114699162231574015452154511448613452133891331714862149731523714182132611416414919135861309012806135591263812368117001165690757323
 us-gaap:StockholdersEquity us-gaap:StatementEquityComponents us-gaap:AccumulatedOtherComprehensiveIncome▆██▇▅▄▄▄▅▆▅▅▅▄▆▆▅▄▅▅▆▆▅▆▅▄▅▅▆▆▆▆▅▅▅▄▄▄▅▄▃▃▃▂▁3004567362484336245340783612012233323028592711184715663377319519318451663194436533096292231992453156317501893358138084150337926222448246311127837481662938302-262-220-1707-2975
 us-gaap:StockholdersEquity us-gaap:StatementEquityComponents us-gaap:CommonStock▁▁▁▁▁▂▂▂▂▂▂▃▃▃▃▃▃▄▄▄▄▄▅▅▅▅▅▅▅▆▆▆▆▇▇▇████▇▇▇▇▅507151625192524152855392561956745700569357175774583958695909600961626298638064696493662266966739680568766886693770437121721473107448759077927938806481248142818878457840784276817033
 us-gaap:StockholdersEquity us-gaap:StatementEquityComponents us-gaap:RetainedEarnings███████▇▇▇▇▆▆▆▆▅▅▅▅▅▅▅▄▄▄▃▃▃▂▂▂▁▁▂▃▃▂▂▂▁▁▁▁▁▁850088548559887886798551861583028052839977387511728770437037671665656474635862866077602258345513522850134753448742384044387334933191412646644536424339343755351234093316323431013265
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:Goodwill ▃▃▃▃▃▃▃▃▁▁▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅████████177817781778177817781782175717501368136822732273227322732273227322732273227322732273227322732273227322732273227322732273227322732273227330193019301930193019301330133013NANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:StockholdersEquity ▆██▇▆▅▅▅▆▇▆▆▅▅▆▆▅▄▅▅▆▆▅▅▅▄▄▄▅▅▅▅▄▅▅▄▄▄▄▄▄▃▃▂▁1657519689199991845516417143501507015177159851732216314159961497314478163231592014658136171440114699162231574015452154511448613452133891331714862149731523714182132611416414919135861309012806135591263812368117001165690757323
 us-gaap:StockholdersEquity us-gaap:StatementEquityComponents us-gaap:AccumulatedOtherComprehensiveIncome▆██▇▅▄▄▄▅▆▅▅▅▄▆▆▅▄▅▅▆▆▅▆▅▄▅▅▆▆▆▆▅▅▅▄▄▄▅▄▃▃▃▂▁3004567362484336245340783612012233323028592711184715663377319519318451663194436533096292231992453156317501893358138084150337926222448246311127837481662938302-262-220-1707-2975
 us-gaap:StockholdersEquity us-gaap:StatementEquityComponents us-gaap:CommonStock▁▁▁▁▁▂▂▂▂▂▂▃▃▃▃▃▃▄▄▄▄▄▅▅▅▅▅▅▅▆▆▆▆▇▇▇████▇▇▇▇▅507151625192524152855392561956745700569357175774583958695909600961626298638064696493662266966739680568766886693770437121721473107448759077927938806481248142818878457840784276817033
 us-gaap:StockholdersEquity us-gaap:StatementEquityComponents us-gaap:RetainedEarnings███████▇▇▇▇▆▆▆▆▅▅▅▅▅▅▅▄▄▄▃▃▃▂▂▂▁▁▂▃▃▂▂▂▁▁▁▁▁▁850088548559887886798551861583028052839977387511728770437037671665656474635862866077602258345513522850134753448742384044387334933191412646644536424339343755351234093316323431013265
us-gaap:RetainedEarningsAccumulatedDeficit ███████▇▇▇▇▆▆▆▆▅▅▅▅▅▅▄▄▄▄▃▃▃▂▂▂▁▁▂▃▃▂▂▂▁▁▁850088548559887886798551861583028052839977387511728770437037671665656474635862866077602258345513522850134753448742384044387334933191412646644536424339343755351234093316NANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▅▇█▆▄▂▂▃▄▅▄▄▃▃▅▅▃▂▃▃▅▅▄▅▄▃▃▃▅▅▆▅▄▄▄▂▂▂▃▂▂▁3004567362484336245340783612012233323028592711184715663377319519318451663194436533096292231992453156317501893358138084150337926222448246311127837481662938302-262NANANA
 us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss▄▇█▆▃▁▂▂▃▄▄▄▃▂▅▄▃▂▂▃▅▄▄▄▃▂▃▃▅▅▅▅▄▄33405983648245332649557100713942556348631232945206717843703348121959911725194537763297299332822523160918702033377740664353362729332947NANANA1176NANANANANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities 455NANANA-1331NANANA140NANANA109NANANA295NANANA296NANANA263NANANA-2516035233228234356538340576271308565385105791-344
us-gaap:NetCashProvidedByUsedInInvestingActivities 742NANANA-1133NANANA-595NANANA-1499NANANA-707NANANA-1035NANANA-377NANANA-1289-1790-1045891-1913-11141061-705-1367-1718-1379-1044-1489-552-1696-4734-870
us-gaap:NetCashProvidedByUsedInFinancingActivities 2442NANANA1712NANANA1084NANANA591NANANA443NANANA307NANANA-401NANANA417104410951863744880486350233695599118587523791018901
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities 455NANANA-1331NANANA140NANANA109NANANA295NANANA296NANANA263NANANA-2516035233228234356538340576271308565385105791-344
us-gaap:NetIncomeLoss ▄▆▃▆▅▆▆▆▆█▆▆▆▅▆▆▅▅▅▆▅▆▆▆▆▆▆▅▅▆▆▆▅▁▅▆▆▅▅▅▅▄▅▃▁52431-161363252399490385367816418411435189467325208283227344300349439398329351337317239320402324245-513143325339196246255283102153-161-579
 us-gaap:NetIncomeLoss us-gaap:StatementBusinessSegments lnc:AnnuitiesSegment261NA169266250NA302275267NA277251281NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:NetIncomeLoss us-gaap:StatementBusinessSegments lnc:GroupProtectionSegment40NA616855NA634529NA41357NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:NetIncomeLoss us-gaap:StatementBusinessSegments lnc:LifeSegment171NA-245168157NA176150144NA121133130NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:NetIncomeLoss us-gaap:StatementBusinessSegments lnc:RetirementPlanServicesSegment40NA444239NA404343NA353737NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings52NA-161363252NA490385367NANANA435NANANA208NANANA300NANANA329NANANA239342402324245-514143326339195246256283102153-161-579
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities 742NANANA-1133NANANA-595NANANA-1499NANANA-707NANANA-1035NANANA-377NANANA-1289-1790-1045891-1913-11141061-705-1367-1718-1379-1044-1489-552-1696-4734-870
us-gaap:PaymentsToAcquireInvestments 3590NANANA4404NANANA2020NANANA3158NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities 2442NANANA1712NANANA1084NANANA591NANANA443NANANA307NANANA-401NANANA417104410951863744880486350233695599118587523791018901
us-gaap:ProceedsFromIssuanceOfLongTermDebt 499NANANANANANANA1094NANANANANANANANANANANANANANANANANANANANA02029800298000NANA297-4NANA
 us-gaap:ProceedsFromIssuanceOfLongTermDebt us-gaap:DebtInstrument lnc:Libor150BpsTermLoanIssuedDue2022500NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:RepaymentsOfLongTermDebt 300NANANANANANANA487NANANANANANANANANANANANANANANANANANANANA20NANANA25027500155002500050022
 us-gaap:RepaymentsOfLongTermDebt us-gaap:DebtInstrument lnc:SeniorNotes6.25Due2020300NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PaymentsOfDividends 79NANANA77NANANA72NANANA65NANANA60NANANA52NANANA42NANANA332421232314161516332115158254
us-gaap:PaymentsOfDividends 79NANANA77NANANA72NANANA65NANANA60NANANA52NANANA42NANANA332421232314161516332115158254
us-gaap:PaymentsForRepurchaseOfCommonStock 225NANANA150NANANANANANANA200NANANA200NANANA350NANANA150NANANA100921001501502011491517525000NANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:RepaymentsOfLongTermDebt 300NANANANANANANA487NANANANANANANANANANANANANANANANANANANANA20NANANA25027500155002500050022
 us-gaap:RepaymentsOfLongTermDebt us-gaap:DebtInstrument lnc:SeniorNotes6.25Due2020300NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA

Common Stock Shares Issued

us-gaap:CommonStockSharesIssued



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value193196198200202205214217218218219222224226228232243247250252256259260263262262264268271275279285291301308313315
Percentage of CommonStockSharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Common Stock Shares Outstanding

us-gaap:CommonStockSharesOutstanding



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value193196198200202205214217218218219222224226228239239243247250252256259260263262262264268271275279285291301308313315
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementClassOfStock

us-gaap:CommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-31
Value193196198200202205214217218218219222224226228232239243247250252256259260263262262264268271275279285291315
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.097.4100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Common Stock Shares Authorized

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value197201202205218221222223227230233239245253255260266268272273275278284289295311997683319915069322325314312310262
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value195199201204215217218220223225231236241249251255260262262263266270277282289304779641311391263315316304302301260
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value0.272.18-0.811.81.231.892.271.761.683.731.891.841.930.832.021.370.861.150.911.371.171.351.691.521.251.341.281.190.891.171.451.150.85-1.730.471.041.080.620.780.350.880.280.45-0.62-2.27
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value0.152.15-0.831.791.221.82.241.71.643.671.871.811.890.822.01.350.821.140.871.351.151.321.651.481.211.291.231.150.861.141.411.10.83-1.730.441.011.050.60.750.330.850.270.44-0.62-2.27
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Income Loss From Continuing Operations Per Basic Share

Income Loss From Continuing Operations Per Diluted Share

Revenues

us-gaap:Revenues



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value442543444638431039654531426440203609366935113577350032553525330732433171371633813304368534113282317631223009299928442964295428992714257025482804271426622613260525272403208218832132
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.01207.91203.61156.7100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementBusinessSegments

lnc:AnnuitiesSegment



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-06-30
Value1129111711561174111811061073107310761061100098310391060991989944926909842817777745734731735
Percentage of Revenues25.524.126.829.626.227.529.730.630.130.328.429.732.028.529.329.927.728.228.628.027.227.325.225.326.926.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax25.524.126.829.6316.7331.1343.930.630.130.328.429.732.028.529.329.927.728.228.628.027.227.325.225.326.926.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lnc:AnnuitiesSegment0.00.00.00.0435.0438.9424.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

lnc:GroupProtectionSegment



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-06-30
Value12241137115511381128937553564541541534525534570617605598621610561575550517540504501
Percentage of Revenues27.724.526.828.726.523.315.316.115.115.515.115.916.515.318.218.317.518.919.218.619.219.317.518.618.617.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax27.724.526.828.7319.5280.5177.216.115.115.515.115.916.515.318.218.317.518.919.218.619.219.317.518.618.617.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lnc:GroupProtectionSegment0.00.00.00.02751.23470.411060.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

lnc:LifeSegment



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-06-30
Value18212098180217001766168016601614165516061630153814781727144314321446136313371301128412451296123712271229
Percentage of Revenues41.245.241.842.941.441.846.046.046.345.946.246.545.646.542.743.342.441.542.143.242.843.843.942.745.243.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax41.245.241.842.9500.3503.0532.146.046.345.946.246.545.646.542.743.342.441.542.143.242.843.843.942.745.243.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lnc:LifeSegment0.00.00.00.022075.021000.020750.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

lnc:OtherOperations



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-06-30
Value38505857565867656788847982969695103106106100102102101113106114
Percentage of Revenues0.91.11.31.41.31.41.91.91.92.52.42.42.52.62.82.93.03.23.33.33.43.63.43.93.94.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.91.11.31.415.917.421.51.91.92.52.42.42.52.62.82.93.03.23.33.33.43.63.43.93.94.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lnc:OtherOperations0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

lnc:RetirementPlanServicesSegment



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-06-30
Value297298299293294292292291290282282270267282270273272270271269271260255258252260
Percentage of Revenues6.76.46.97.46.97.38.18.38.18.18.08.28.27.68.08.38.08.28.58.99.09.18.68.99.39.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.76.46.97.483.387.493.68.38.18.18.08.28.27.68.08.38.08.28.58.99.09.18.68.99.39.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lnc:RetirementPlanServicesSegment0.00.00.00.0625.5621.3634.80.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Premiums Earned Net

us-gaap:PremiumsEarnedNet



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value137313251398144613231165777774801807708728816825782790741755739672674654637606630589573559594568555538551532524491542509
Percentage of PremiumsEarnedNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax31.028.632.436.5374.8348.8249.022.022.423.120.122.025.222.223.123.921.723.023.322.322.523.021.520.521.721.722.321.921.220.920.820.621.221.121.823.628.823.9

Net Investment Income

us-gaap:NetInvestmentIncome



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value1375123513551251127112321233123912621238125911991172125411871187121212071208118012131150118911461197116611301151118111911183113211201106112310719711013
Percentage of NetInvestmentIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax31.126.631.431.6360.1368.9395.235.335.335.435.736.336.133.735.135.935.536.838.039.240.440.440.138.841.343.044.045.242.143.944.443.343.043.846.751.451.647.5

us-gaap:DerivativeInstrumentRisk, us-gaap:StatementEquityComponents

us-gaap:ForeignExchangeContract, us-gaap:AccumulatedNetGainLossFromCashFlowHedgesIncludingPortionAttributableToNoncontrollingInterest



Period End2020-03-312019-03-312018-03-312017-03-31
Value11754
Percentage of NetInvestmentIncome0.80.60.40.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.20.21.60.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ForeignExchangeContract us-gaap:AccumulatedNetGainLossFromCashFlowHedgesIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.0

Other Income

us-gaap:OtherIncome



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value15114714914717516013115312712212711911612314513513513313013412711712512312411811611812312012111211710811210210486
Percentage of OtherIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.43.23.53.749.647.942.04.43.63.53.63.63.63.34.34.14.04.14.14.54.24.14.24.24.34.34.54.64.44.44.54.34.54.34.74.95.54.0

Policyholder Benefits And Claims Incurred Net

us-gaap:PolicyholderBenefitsAndClaimsIncurredNet



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value2501250218521757162616611358126112871290922120813311327122012361117107910789459919589238119458588186651028835787925839779764577575921
Percentage of PolicyholderBenefitsAndClaimsIncurredNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax56.553.943.044.3460.6497.3435.335.936.036.926.236.541.035.736.137.432.732.933.931.433.033.731.127.532.631.631.826.136.730.829.635.432.230.831.827.730.543.2

General And Administrative Expense

Interest Expense

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value34-250421268532451435510533475612414235268449362601537427442418305400418442307-45113944146825230333034813362-53-663
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.8-5.49.86.8150.7135.0139.414.514.913.617.412.57.27.213.311.017.616.413.414.713.910.713.514.215.211.3-17.55.515.717.29.511.612.713.85.53.0-2.8-31.1

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value-18-895816426668921224014589274110562162139981051016658451186163-121161295755789335-19-46-76
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.4-1.91.30.411.919.821.82.63.41.14.12.70.81.13.11.94.74.23.13.53.42.32.01.54.12.22.5-0.54.14.82.12.13.03.71.5-0.9-2.4-3.6

us-gaap:StatementEquityComponents

lnc:UnrealizedGainLossOnDerivativeInstruments



Period End2020-03-312019-03-312017-03-312016-03-312015-03-312014-03-31
Value1-1-2-2682
Percentage of IncomeTaxExpenseBenefit-5.6-6.2-5.0-7.4109.72.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0-0.0-0.1-0.12.10.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lnc:UnrealizedGainLossOnDerivativeInstruments0.00.00.00.00.00.0

Net Income Loss

us-gaap:NetIncomeLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value52431-161363252399490385367816418411435189467325208283227344300349439398329351337317239320402324245-513143325339196246255283102153-161-579
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.29.9-3.58.46.48.8138.8115.3117.622.211.911.512.45.813.29.86.48.96.110.29.19.512.912.110.411.211.210.68.410.813.611.29.0-20.05.611.612.57.49.49.811.24.27.3-8.6-27.2

us-gaap:StatementBusinessSegments

lnc:AnnuitiesSegment



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value261169266250302275267277251281
Percentage of NetIncomeLoss501.9-105.073.399.261.671.472.866.361.164.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.93.66.26.385.682.385.67.97.08.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lnc:AnnuitiesSegment0.00.00.00.0117.5109.1105.50.00.00.0

lnc:GroupProtectionSegment



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value4061685563452941357
Percentage of NetIncomeLoss76.9-37.918.721.812.911.77.99.88.51.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.91.31.61.417.813.59.31.21.00.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lnc:GroupProtectionSegment0.00.00.00.0153.7166.7580.00.00.00.0

lnc:LifeSegment



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value171-245168157176150144121133130
Percentage of NetIncomeLoss328.8152.246.362.335.939.039.228.932.429.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.9-5.33.94.049.944.946.23.43.73.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lnc:LifeSegment0.00.00.00.02200.01875.01800.00.00.00.0

lnc:OtherOperations



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value-47-75-66-60-71-59-42-20-37-13
Percentage of NetIncomeLoss-90.446.6-18.2-23.8-14.5-15.3-11.4-4.8-9.0-3.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.1-1.6-1.5-1.5-20.1-17.7-13.5-0.6-1.0-0.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lnc:OtherOperations0.00.00.00.00.00.00.00.00.00.0

lnc:RetirementPlanServicesSegment



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value40444239404343353737
Percentage of NetIncomeLoss76.9-27.311.615.58.211.211.78.49.08.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.90.91.01.011.312.913.81.01.01.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lnc:RetirementPlanServicesSegment0.00.00.00.085.191.593.50.00.00.0

us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value52-161363252490385367435208300329239342402324245-514143326339195246256283102153-161-579
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0106.9100.0100.0100.0100.2100.0100.3100.099.5100.0100.4100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.2-3.58.46.4138.8115.3117.612.46.49.110.48.411.513.611.29.0-20.05.611.612.57.39.49.811.24.27.3-8.6-27.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets

us-gaap:Assets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value318649334761325278322259314299298147303850298832279237281763276785271651267468261627266605263028255718251937249532255214258485253377248446249125241949236945229924223321224341218869215458211110208018202906197747201554198317193824190490180129181621177433163136
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value302074315072305279303804297882283797288780283655263252264441260471255655252495247149250282247108241060238320235131240515242262237637232994233674227463223493216535210004209479203896200221196928194757188742182828187968185227181018176931167491169253165733155159
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets94.894.193.994.394.895.295.094.994.393.994.194.194.494.593.993.994.394.694.294.293.793.893.893.894.094.394.294.093.493.292.993.393.693.092.593.393.493.492.993.093.293.495.1

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value318649334761325278322259314299298147303850298832279237281763276785271651267468261627266605263028255718251937249532255214258485253377248446249125241949236945229924223321224341218869215458211110208018202906197747201554198317193824190490180129181621177433163136
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-312008-12-312007-12-31
Value1657519689199991845516417143501507015177159851732216314159961497314478163231592014658136171440114699162231574015452154511448613452133891331714862149731523714182132611416414919135861309012806135591263812368117001165690757323797711718
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.25.96.15.75.24.85.05.15.76.15.95.95.65.56.16.15.75.45.85.86.36.26.26.26.05.75.86.06.66.87.16.76.47.07.56.76.66.67.17.06.86.60.00.00.04.90.0

us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-312008-12-312007-12-312006-12-31
Value3004567362484336245340783612012233323028592711184715663377319519318451663194436533096292231992453156317501893358138084150337926222448246311127837481662938302-262-220-1707-2975-2803225613
Percentage of StockholdersEquity18.128.831.223.514.92.85.57.914.018.617.516.912.310.820.720.113.26.211.513.222.519.718.920.716.911.613.114.224.125.427.223.819.817.316.58.26.05.812.37.42.4-2.2-1.9-18.8-40.6-35.11.90.0
Percentage of Assets0.91.71.91.30.80.10.30.40.81.11.01.00.70.61.31.20.80.30.70.81.41.21.21.31.00.70.80.81.61.71.91.61.31.21.20.60.40.40.90.50.2-0.10.00.00.0-1.70.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-312008-12-312007-12-312006-12-31
Value507151625192524152855392561956745700569357175774583958695909600961626298638064696493662266966739680568766886693770437121721473107448759077927938806481248142818878457840784276817033703572007449
Percentage of StockholdersEquity30.626.226.028.432.237.637.337.435.732.935.036.139.040.536.237.742.046.344.344.040.042.143.343.647.051.151.452.147.447.647.351.556.253.652.258.461.663.460.064.863.467.067.384.696.088.261.40.0
Percentage of Assets1.61.51.61.61.71.81.81.92.02.02.12.12.22.22.22.32.42.52.62.52.52.62.72.72.82.93.03.13.13.33.33.53.63.73.93.94.14.24.34.54.34.40.00.00.04.30.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-312008-12-312007-12-312006-12-31
Value850088548559887886798551861583028052839977387511728770437037671665656474635862866077602258345513522850134753448742384044387334933191412646644536424339343755351234093316323431013265374542934138
Percentage of StockholdersEquity51.345.042.848.152.959.657.254.750.448.547.447.048.748.643.142.244.847.544.142.837.538.337.835.736.137.335.533.728.527.025.424.624.129.131.333.432.430.727.727.827.628.327.734.244.646.936.60.0
Percentage of Assets2.72.62.62.82.82.92.82.82.93.02.82.82.72.72.62.62.62.62.52.52.42.42.32.22.22.12.12.01.91.81.81.71.52.02.42.32.12.02.01.91.91.90.00.00.02.30.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Cash And Cash Equivalents At Carrying Value

Goodwill

us-gaap:Goodwill



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value1778177817781778177817821757175013681368227322732273227322732273227322732273227322732273227322732273227322732273227322732273227322732273301930193019301930193013301330133696
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.60.50.50.60.60.60.60.60.50.50.80.80.80.90.90.90.90.90.90.90.90.90.90.90.91.01.01.01.01.01.11.11.11.11.51.51.51.61.61.71.71.72.3

Deferred Tax Assets Liabilities Net

Debt Current

Long Term Debt Current

Stockholders Equity

us-gaap:StockholdersEquity



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-312008-12-312007-12-31
Value1657519689199991845516417143501507015177159851732216314159961497314478163231592014658136171440114699162231574015452154511448613452133891331714862149731523714182132611416414919135861309012806135591263812368117001165690757323797711718
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.25.96.15.75.24.85.05.15.76.15.95.95.65.56.16.15.75.45.85.86.36.26.26.26.05.75.86.06.66.87.16.76.47.07.56.76.66.67.17.06.86.60.00.00.04.90.0

us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-312008-12-312007-12-312006-12-31
Value3004567362484336245340783612012233323028592711184715663377319519318451663194436533096292231992453156317501893358138084150337926222448246311127837481662938302-262-220-1707-2975-2803225613
Percentage of StockholdersEquity18.128.831.223.514.92.85.57.914.018.617.516.912.310.820.720.113.26.211.513.222.519.718.920.716.911.613.114.224.125.427.223.819.817.316.58.26.05.812.37.42.4-2.2-1.9-18.8-40.6-35.11.90.0
Percentage of Assets0.91.71.91.30.80.10.30.40.81.11.01.00.70.61.31.20.80.30.70.81.41.21.21.31.00.70.80.81.61.71.91.61.31.21.20.60.40.40.90.50.2-0.10.00.00.0-1.70.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-312008-12-312007-12-312006-12-31
Value507151625192524152855392561956745700569357175774583958695909600961626298638064696493662266966739680568766886693770437121721473107448759077927938806481248142818878457840784276817033703572007449
Percentage of StockholdersEquity30.626.226.028.432.237.637.337.435.732.935.036.139.040.536.237.742.046.344.344.040.042.143.343.647.051.151.452.147.447.647.351.556.253.652.258.461.663.460.064.863.467.067.384.696.088.261.40.0
Percentage of Assets1.61.51.61.61.71.81.81.92.02.02.12.12.22.22.22.32.42.52.62.52.52.62.72.72.82.93.03.13.13.33.33.53.63.73.93.94.14.24.34.54.34.40.00.00.04.30.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-312008-12-312007-12-312006-12-31
Value850088548559887886798551861583028052839977387511728770437037671665656474635862866077602258345513522850134753448742384044387334933191412646644536424339343755351234093316323431013265374542934138
Percentage of StockholdersEquity51.345.042.848.152.959.657.254.750.448.547.447.048.748.643.142.244.847.544.142.837.538.337.835.736.137.335.533.728.527.025.424.624.129.131.333.432.430.727.727.827.628.327.734.244.646.936.60.0
Percentage of Assets2.72.62.62.82.82.92.82.82.93.02.82.82.72.72.62.62.62.62.52.52.42.42.32.22.22.12.12.01.91.81.81.71.52.02.42.32.12.02.01.91.91.90.00.00.02.30.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value8500885485598878867985518615830280528399773875117287704370376716656564746358628660776022583455135228501347534487423840443873349331914126466445364243393437553512340933163745
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.72.62.62.82.82.92.82.82.93.02.82.82.72.72.62.62.62.62.52.52.42.42.32.22.22.12.12.01.91.81.81.71.52.02.42.32.12.02.01.91.91.92.3

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value3004567362484336245340783612012233323028592711184715663377319519318451663194436533096292231992453156317501893358138084150337926222448246311127837481662938302-262-2803
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.91.71.91.30.80.10.30.40.81.11.01.00.70.61.31.20.80.30.70.81.41.21.21.31.00.70.80.81.61.71.91.61.31.21.20.60.40.40.90.50.2-0.1-1.7

us-gaap:StatementEquityComponents

lnc:UnrealizedGainLossOnDerivativeInstruments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-31
Value8-115391991399269-60-29-14224349-41103413215220921813922121623925627025920316317715089119-11
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax0.3-0.20.82.14.034.211.05.7-2.7-0.9-0.50.82.33.1-1.20.31.815.69.110.86.04.57.66.89.716.415.413.75.74.34.34.43.44.9-1.5
Percentage of Assets0.0-0.00.00.00.00.00.00.0-0.0-0.0-0.00.00.00.0-0.00.00.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.00.1-0.0
Percentage of Assets lnc:UnrealizedGainLossOnDerivativeInstruments0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-31
Value-317-327-295-299-300-299-282-283-292-257-274-272-267-265-287-288-297-299-275-279-272-279-217-222-220-219-301-310-306-310-279-277-279-278-181
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax-10.6-5.8-4.7-6.9-12.2-73.5-33.7-23.6-13.1-8.0-9.6-10.0-14.5-16.9-8.5-9.0-15.4-35.4-16.5-14.4-7.4-9.0-7.4-6.9-9.0-14.0-17.2-16.4-8.5-8.1-6.7-8.2-10.6-11.4-24.2
Percentage of Assets-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-31
Value334059836482453326495571007139425563486312329452067178437033481219599117251945377632972993328225231609187020333777406643533627293329471176
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax111.2105.5103.7104.5108.0136.9120.5116.1114.5107.9109.2108.6111.9113.9109.7109.0113.7117.3103.7100.1103.4106.5102.4102.6102.9102.9106.9107.4105.5106.8104.9107.3111.9120.4157.2
Percentage of Assets1.01.82.01.40.80.20.30.50.91.21.11.10.80.71.41.30.90.40.70.81.51.31.21.31.00.70.80.91.71.92.01.71.41.50.6
Percentage of Assets us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedTranslationAdjustment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-31
Value-27-17-28-23-20-23-20-18-9-14-16-20-25-27-20-18-7-5-23-4-3-10-10-10-5-5-5-6-4-3-4-211
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax-0.9-0.3-0.4-0.5-0.8-5.7-2.4-1.5-0.4-0.4-0.6-0.7-1.4-1.7-0.6-0.6-0.4-0.6-0.10.2-0.1-0.1-0.3-0.3-0.4-0.3-0.3-0.3-0.2-0.1-0.1-0.1-0.10.00.1
Percentage of Assets-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.00.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.00.00.0
Percentage of Assets us-gaap:AccumulatedTranslationAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value455-1331140109295296263-2516035233228234356538340576271308565385105791-344
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.3-33.644.93.19.19.08.3-8.820.31.811.510.413.32.219.212.521.610.411.822.416.05.042.0-16.1

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value742-1133-595-1499-707-1035-377-1289-1790-1045891-1913-11141061-705-1367-1718-1379-1044-1489-552-1696-4734-870
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax16.8-28.6-190.7-42.8-21.8-31.3-11.9-45.3-60.4-35.430.7-70.5-43.341.6-25.1-50.4-64.5-52.8-40.1-58.9-23.0-81.5-251.4-40.8

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value244217121084591443307-401417104410951863744880486350233695599118587523791018901
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax55.243.2347.416.913.79.3-12.614.735.23.717.923.517.431.630.818.512.636.538.07.336.4114.354.142.3

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value455-1331140109295296263-2516035233228234356538340576271308565385105791-344
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.3-33.644.93.19.19.08.3-8.820.31.811.510.413.32.219.212.521.610.411.822.416.05.042.0-16.1

Net Income Loss

us-gaap:NetIncomeLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value52431-161363252399490385367816418411435189467325208283227344300349439398329351337317239320402324245-513143325339196246255283102153-161-579
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.29.9-3.58.46.48.8138.8115.3117.622.211.911.512.45.813.29.86.48.96.110.29.19.512.912.110.411.211.210.68.410.813.611.29.0-20.05.611.612.57.49.49.811.24.27.3-8.6-27.2

us-gaap:StatementBusinessSegments

lnc:AnnuitiesSegment



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value261169266250302275267277251281
Percentage of NetIncomeLoss501.9-105.073.399.261.671.472.866.361.164.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.93.66.26.385.682.385.67.97.08.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lnc:AnnuitiesSegment0.00.00.00.0117.5109.1105.50.00.00.0

lnc:GroupProtectionSegment



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value4061685563452941357
Percentage of NetIncomeLoss76.9-37.918.721.812.911.77.99.88.51.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.91.31.61.417.813.59.31.21.00.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lnc:GroupProtectionSegment0.00.00.00.0153.7166.7580.00.00.00.0

lnc:LifeSegment



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value171-245168157176150144121133130
Percentage of NetIncomeLoss328.8152.246.362.335.939.039.228.932.429.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.9-5.33.94.049.944.946.23.43.73.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lnc:LifeSegment0.00.00.00.02200.01875.01800.00.00.00.0

lnc:OtherOperations



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value-47-75-66-60-71-59-42-20-37-13
Percentage of NetIncomeLoss-90.446.6-18.2-23.8-14.5-15.3-11.4-4.8-9.0-3.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.1-1.6-1.5-1.5-20.1-17.7-13.5-0.6-1.0-0.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lnc:OtherOperations0.00.00.00.00.00.00.00.00.00.0

lnc:RetirementPlanServicesSegment



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value40444239404343353737
Percentage of NetIncomeLoss76.9-27.311.615.58.211.211.78.49.08.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.90.91.01.011.312.913.81.01.01.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax lnc:RetirementPlanServicesSegment0.00.00.00.085.191.593.50.00.00.0

us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value52-161363252490385367435208300329239342402324245-514143326339195246256283102153-161-579
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0106.9100.0100.0100.0100.2100.0100.3100.099.5100.0100.4100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.2-3.58.46.4138.8115.3117.612.46.49.110.48.411.513.611.29.0-20.05.611.612.57.39.49.811.24.27.3-8.6-27.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value742-1133-595-1499-707-1035-377-1289-1790-1045891-1913-11141061-705-1367-1718-1379-1044-1489-552-1696-4734-870
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax16.8-28.6-190.7-42.8-21.8-31.3-11.9-45.3-60.4-35.430.7-70.5-43.341.6-25.1-50.4-64.5-52.8-40.1-58.9-23.0-81.5-251.4-40.8

Payments To Acquire Investments

us-gaap:PaymentsToAcquireInvestments



Period End2020-03-312019-03-312018-03-312017-03-31
Value3590440420203158
Percentage of PaymentsToAcquireInvestments100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value244217121084591443307-401417104410951863744880486350233695599118587523791018901
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax55.243.2347.416.913.79.3-12.614.735.23.717.923.517.431.630.818.512.636.538.07.336.4114.354.142.3

Proceeds From Issuance Of Long Term Debt

us-gaap:ProceedsFromIssuanceOfLongTermDebt



Period End2020-03-312018-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302009-12-312009-09-30
Value499109402029800298000297-4
Percentage of ProceedsFromIssuanceOfLongTermDebt100.0100.00.0100.00.0100.00.00.0100.00.00.00.0100.0100.0

us-gaap:DebtInstrument

lnc:Libor150BpsTermLoanIssuedDue2022



Period End2020-03-31
Value500
Percentage of ProceedsFromIssuanceOfLongTermDebt100.2

Repayments Of Long Term Debt

us-gaap:RepaymentsOfLongTermDebt



Period End2020-03-312018-03-312012-12-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value3004872025027500155002500050022
Percentage of RepaymentsOfLongTermDebt100.0100.0100.0100.0100.00.00.0100.00.00.0100.00.00.0100.0100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:DebtInstrument

lnc:SeniorNotes6.25Due2020



Period End2020-03-31
Value300
Percentage of RepaymentsOfLongTermDebt100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations lnc:SeniorNotes6.25Due20200.0

Payments Of Dividends

us-gaap:PaymentsOfDividends



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value79777265605242332421232314161516332115158254
Percentage of PaymentsOfDividends100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Payments Of Dividends

us-gaap:PaymentsOfDividends



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value79777265605242332421232314161516332115158254
Percentage of PaymentsOfDividends100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Payments For Repurchase Of Common Stock

us-gaap:PaymentsForRepurchaseOfCommonStock



Period End2020-03-312019-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value225150200200350150100921001501502011491517525000
Percentage of PaymentsForRepurchaseOfCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

Repayments Of Long Term Debt

us-gaap:RepaymentsOfLongTermDebt



Period End2020-03-312018-03-312012-12-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value3004872025027500155002500050022
Percentage of RepaymentsOfLongTermDebt100.0100.0100.0100.0100.00.00.0100.00.00.0100.00.00.0100.0100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:DebtInstrument

lnc:SeniorNotes6.25Due2020



Period End2020-03-31
Value300
Percentage of RepaymentsOfLongTermDebt100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations lnc:SeniorNotes6.25Due20200.0

Debt Instrument Interest Rate Stated Percentage

Effective Income Tax Rate Continuing Operations

us-gaap:EffectiveIncomeTaxRateContinuingOperations



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value-0.530.360.140.060.080.150.160.180.230.080.240.210.120.150.230.170.270.260.230.240.240.22-0.0100000000000000090.110.270.20.28-0.040.260.280.00.1824.00.27-0.01999999999999999
Percentage of EffectiveIncomeTaxRateContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0

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

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

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

Deferred Tax Liabilities

Unrecognized Tax Benefits

Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions

Operating Lease Right Of Use Asset

Cash And Cash Equivalents Period Increase Decrease

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value620225632939331415932345146017752257162819651978192327223146
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CededCreditRisk

lnc:AtheneHoldingLtd.



Period End2020-03-31
Value378
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents6.1

lnc:AlternativeInvestmentsAsPercentageOfOverallInvestedAssets



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-12-312013-03-31
Value0.010.020.010.010.010.010.010.01
Percentage of AlternativeInvestmentsAsPercentageOfOverallInvestedAssets100.0100.0100.0100.0100.0100.0100.0100.0

lnc:AmortizationAssociatedWithRealizedGainLossOnCertainInvestments



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-30
Value26-5-5-2-5-6-5-5-6-7-7-5-3-5-10-6-7-10-7-8-4-7-110205-7-11-1222-84332548
Percentage of AmortizationAssociatedWithRealizedGainLossOnCertainInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lnc:AmortizationOfDeferredGainOnBusinessSoldThroughReinsurance



Period End2020-03-312019-09-302019-06-302019-03-312017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value11888418181818181818181819191919-18-19-18-19-19-19-19-19-19-191919132-181819
Percentage of AmortizationOfDeferredGainOnBusinessSoldThroughReinsurance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidationItems

lnc:AmortizationOfDfelAssociatedWithBenefitRatioUnlocking

us-gaap:MaterialReconcilingItems



Period End2020-03-312019-09-302019-06-302019-03-312018-03-312017-09-302017-03-31
Value-9-113-111
Percentage of AmortizationOfDfelAssociatedWithBenefitRatioUnlocking100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncomeStatementLocation

lnc:AmountOfIncomeExpenseLineItemsInStatementOfFinancialPositionThatHedgesAreRecorded

lnc:NetInvestmentIncome



Period End2020-03-312019-09-302019-06-302019-03-31
Value1375123513551251
Percentage of AmountOfIncomeExpenseLineItemsInStatementOfFinancialPositionThatHedgesAreRecorded100.0100.0100.0100.0

lnc:RealizedGainLoss



Period End2020-03-312019-09-302019-06-302019-03-31
Value-24-11-117-362
Percentage of AmountOfIncomeExpenseLineItemsInStatementOfFinancialPositionThatHedgesAreRecorded-1.7-0.9-8.6-28.9

us-gaap:InterestExpense



Period End2020-03-312019-09-302019-06-302019-03-31
Value681137071
Percentage of AmountOfIncomeExpenseLineItemsInStatementOfFinancialPositionThatHedgesAreRecorded4.99.15.25.7

us-gaap:StatementEquityComponents

lnc:AssociatedAmortizationOfDacVobaDsiAndDfel

lnc:UnrealizedGainLossOnDerivativeInstruments



Period End2020-03-312019-03-312018-03-312016-03-312015-03-312013-03-31
Value-6-1-1-111
Percentage of AssociatedAmortizationOfDacVobaDsiAndDfel100.0100.0100.0100.0100.0100.0

lnc:AssumedAcquisitionOfSharesWithAssumedProceedsAndBenefitsFromExercisingStockOptionsAtAverageMarketPrice



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-30
Value001111-1-1-1-1-1-1-1-1-2-2-2-2-2-2-1-10000459167-342848-40037400000000
Percentage of AssumedAcquisitionOfSharesWithAssumedProceedsAndBenefitsFromExercisingStockOptionsAtAverageMarketPrice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

lnc:AvailableForSaleAndDerivativesAssociatedAmortizationOfDacVobaDsiAndDfel

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-03-31
Value-3214-7-2-7-7-82
Percentage of AvailableForSaleAndDerivativesAssociatedAmortizationOfDacVobaDsiAndDfel100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

lnc:AvailableForSaleAndDerivativesChangeInForeignCurrencyExchangeRateAdjustment

lnc:UnrealizedGainLossOnDerivativeInstruments



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-03-31
Value153-14-50-20-1137-211-9
Percentage of AvailableForSaleAndDerivativesChangeInForeignCurrencyExchangeRateAdjustment100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

lnc:AvailableForSaleChangeInDacVobaDsiAndOtherContractHolderFunds

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-03-31
Value1264-928958-121-661-200-60428676
Percentage of AvailableForSaleChangeInDacVobaDsiAndOtherContractHolderFunds100.0100.0100.0100.0100.0100.0100.0100.0100.0

lnc:AverageStockOptionsOutstandingDuringPeriod



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-30
Value01111112222212333333210000-69805350057863371100000000
Percentage of AverageStockOptionsOutstandingDuringPeriod100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidationItems

lnc:BenefitRatioUnlocking

us-gaap:MaterialReconcilingItems



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value-349-246142337-10302645
Percentage of BenefitRatioUnlocking100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lnc:ChangeInFundsWithheldReinsuranceLiabilityAndReinsuranceRecoverables



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value65329911313286178-2111262-1821092-14413856797134-114-139-7773251-170
Percentage of ChangeInFundsWithheldReinsuranceLiabilityAndReinsuranceRecoverables100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lnc:CommonStockBasicBasis



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-31
Value193198200202214217218219222224228232239247250252259260263
Percentage of CommonStockBasicBasis100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lnc:CommonStockDilutedBasis



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-31
Value195200202204217220222222226228231236242251254257265267270272273277282286292
Percentage of CommonStockDilutedBasis100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lnc:CommonStockIssuedForBenefitPlans



Period End2020-03-312019-03-31
Value926
Percentage of CommonStockIssuedForBenefitPlans100.0100.0

lnc:DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotPreviouslyRecordedGross



Period End2020-03-312019-03-31
Value208
Percentage of DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotPreviouslyRecordedGross100.0100.0

us-gaap:FinancialInstrument

us-gaap:CorporateBondSecurities



Period End2020-03-312019-03-31
Value206
Percentage of DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotPreviouslyRecordedGross100.075.0

lnc:DeferredAcquisitionCostsValueOfBusinessAcquiredDeferredSalesInducementsAndDeferredFrontEndLoadsDeferralsAndInterestNetOfAmortization



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value-169-706155-42-95-77-12318-70-44-142186-222-74-60-100-38-48-97-54-62-103
Percentage of DeferredAcquisitionCostsValueOfBusinessAcquiredDeferredSalesInducementsAndDeferredFrontEndLoadsDeferralsAndInterestNetOfAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lnc:DepositsOfFixedAccountValuesIncludingFixedPortionOfVariable



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value391740422765271326722464248125173082263325882391276628522765257028333115275023822573301031832612
Percentage of DepositsOfFixedAccountValuesIncludingFixedPortionOfVariable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

lnc:DerivativesChangeInDacVobaDsiAndDfel

lnc:UnrealizedGainLossOnDerivativeInstruments



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312013-03-312012-03-31
Value-5364-2-424
Percentage of DerivativesChangeInDacVobaDsiAndDfel100.0100.0100.0100.0100.0100.0100.0

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

lnc:DerivativesReclassificationAdjustmentForGainsLossesIncludedInNetIncome

us-gaap:ForeignExchangeContract, us-gaap:CashFlowHedging, lnc:NetInvestmentIncome, lnc:UnrealizedGainLossOnDerivativeInstruments



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312013-03-312012-03-31
Value117542222
Percentage of DerivativesReclassificationAdjustmentForGainsLossesIncludedInNetIncome100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignExchangeContract, us-gaap:CashFlowHedging, lnc:RealizedGainLoss, lnc:UnrealizedGainLossOnDerivativeInstruments



Period End2020-03-312019-03-312017-03-312016-03-31
Value1154
Percentage of DerivativesReclassificationAdjustmentForGainsLossesIncludedInNetIncome9.114.3125.0200.0

us-gaap:InterestRateContract, us-gaap:CashFlowHedging, us-gaap:InterestExpense, lnc:UnrealizedGainLossOnDerivativeInstruments



Period End2020-03-312019-03-312018-03-312017-03-312015-03-312014-03-31
Value-3-1-3-411
Percentage of DerivativesReclassificationAdjustmentForGainsLossesIncludedInNetIncome-27.3-14.3-60.0-100.050.00.0

us-gaap:StatementEquityComponents

lnc:UnrealizedGainLossOnDerivativeInstruments



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-03-31
Value98377-194-6-2-3
Percentage of DerivativesReclassificationAdjustmentForGainsLossesIncludedInNetIncome81.8114.360.0175.0350.0-9700.00.0-100.0-150.0

us-gaap:StatementEquityComponents

lnc:DerivativesUnrealizedGainLossIncomeTaxBenefitExpense

lnc:UnrealizedGainLossOnDerivativeInstruments



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-31
Value8-10-71502511-22
Percentage of DerivativesUnrealizedGainLossIncomeTaxBenefitExpense100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:StatementEquityComponents

lnc:DerivativesUnrealizedHoldingGainsLossesArisingDuringPeriod

us-gaap:ForeignExchangeContract, us-gaap:CashFlowHedging, lnc:UnrealizedGainLossOnDerivativeInstruments



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-03-31
Value31211-37111542-213-3
Percentage of DerivativesUnrealizedHoldingGainsLossesArisingDuringPeriod100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestRateContract, us-gaap:CashFlowHedging, lnc:UnrealizedGainLossOnDerivativeInstruments



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-03-31
Value-383-47539-144-150-2934-40
Percentage of DerivativesUnrealizedHoldingGainsLossesArisingDuringPeriod-122.8-427.3-143.281.8-960.0-357.11450.0261.51333.3

us-gaap:ConsolidationItems

lnc:ExcludedRealizedGainLossAfterTax

us-gaap:MaterialReconcilingItems



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value-60-49-128-316-77-41-28-63-34-52
Percentage of ExcludedRealizedGainLossAfterTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidationItems

lnc:ExcludedRealizedGainLossPreTax

us-gaap:MaterialReconcilingItems



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value-75-61-161-400-98-53-35-97-52-80
Percentage of ExcludedRealizedGainLossPreTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lnc:FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnobservableInputInvestmentHoldingsMovementsCalls



Period End2020-03-312019-09-302019-03-312018-09-302018-06-302017-09-302017-06-302017-03-312016-09-302016-03-312015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value49167861261395785711854244223276-3-1-1-2-1-1-88-1
Percentage of FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnobservableInputInvestmentHoldingsMovementsCalls100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument, us-gaap:InvestmentType

us-gaap:CorporateBondSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-09-302019-03-312018-09-302018-06-302017-09-302017-06-302017-03-312016-09-302016-03-312015-06-30
Value49167861261395785711
Percentage of FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnobservableInputInvestmentHoldingsMovementsCalls100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lnc:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetMaturities



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-30
Value11095133531211111251311241128831187671872410712991846282
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetMaturities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument

us-gaap:DerivativeFinancialInstrumentsAssets



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-30
Value1127486461201111231129990703114761068711937191845875
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetMaturities101.877.964.786.899.2100.098.485.579.880.479.5100.077.8100.0149.3100.045.886.955.0100.0100.093.591.5

us-gaap:FinancialInstrument, us-gaap:InvestmentType

us-gaap:CorporateBondSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-03-312017-09-302017-06-302017-03-312016-09-302016-03-312015-06-30
Value-2214771219252218415
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetMaturities-1.822.135.313.20.81.614.520.219.620.522.221.1

lnc:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesMaturitiesSettlementsCalls



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-30
Value11339380140956725862-1013910729171567747-207488-29-10185232-56
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesMaturitiesSettlementsCalls100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument

us-gaap:DerivativeFinancialInstrumentsAssets



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-30
Value-117225970431-39-61-85-80251-69-29-17-52-108-94-72-69-55-73-5027-63
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesMaturitiesSettlementsCalls-103.55.67.417.176.0-15.1-98.484.2-205.1234.6-237.9-17.0-30.4-67.5-229.8470.0-97.3-78.4189.7730.0-27.011.6112.5

us-gaap:TradingAssetsExcludingDebtAndEquitySecurities



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302017-09-30
Value-61463712062-22-10
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesMaturitiesSettlementsCalls-5.337.246.350.40.4-8.59.9

us-gaap:FinancialInstrument, us-gaap:InvestmentType

lnc:IndexedAnnuityCededEmbeddedDerivatives, us-gaap:OtherAssets



Period End2020-03-312019-03-31
Value-13-107
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesMaturitiesSettlementsCalls-11.5-26.2

lnc:IndexedAnnuityContracts, lnc:FutureContractBenefits



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-30
Value62-95-89-109-7820-3342141552634
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesMaturitiesSettlementsCalls54.9-24.2-11.1-26.7-1.23.132.33.087.219.6141.42.98.933.872.3

us-gaap:AssetBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302016-06-302015-09-30
Value2269152521751413
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesMaturitiesSettlementsCalls19.517.619.012.73.01.98.216.9

us-gaap:CorporateBondSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-30
Value1652561712008815774-3557-204-74118286061
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesMaturitiesSettlementsCalls146.065.121.348.915.560.9119.434.7146.2-190.7-255.269.050.077.9129.8

us-gaap:FinancingReceivablePortfolioSegment

lnc:FinancingReceivableNumberOfLoansPastDue

us-gaap:ResidentialPortfolioSegment



Period End2020-03-31
Value44.0
Percentage of FinancingReceivableNumberOfLoansPastDue100.0

us-gaap:FinancingReceivablePortfolioSegment

lnc:ImpairedFinancingReceivableNumberOfImpairedLoans

us-gaap:CommercialRealEstatePortfolioSegment



Period End2020-03-312019-03-31
Value2.00.0
Percentage of ImpairedFinancingReceivableNumberOfImpairedLoans100.00.0

us-gaap:ResidentialPortfolioSegment



Period End2020-03-312019-03-31
Value24.00.0
Percentage of ImpairedFinancingReceivableNumberOfImpairedLoans1200.00.0

us-gaap:StatementEquityComponents

lnc:IncomeTaxExpenseRelatedToReclassificationOfOci

lnc:UnrealizedGainLossOnDerivativeInstruments



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-31
Value-81071502511
Percentage of IncomeTaxExpenseRelatedToReclassificationOfOci100.0100.0100.0100.0100.0100.0100.0

lnc:IncreaseDecreaseInCashCollateralForDerivativeInvestments



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-30
Value255558-8329772378308-575-386-4881309-8483871570293-70-870249808-4-9724
Percentage of IncreaseDecreaseInCashCollateralForDerivativeInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lnc:IncreaseDecreaseInCashCollateralForSecuritiesLendingAgreements



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-30
Value4748-68-894-2721-4002-201-112-252-61-193257
Percentage of IncreaseDecreaseInCashCollateralForSecuritiesLendingAgreements100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0

lnc:IncreaseDecreaseInCashCollateralForSecuritiesPledgedForFhlbi



Period End2020-03-312019-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-12-312012-09-302011-12-312011-09-302010-12-312010-09-302009-12-312009-09-30
Value750450150-25025015050000-5005000000
Percentage of IncreaseDecreaseInCashCollateralForSecuritiesPledgedForFhlbi100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.00.00.00.00.0

lnc:IncreaseDecreaseInCollateralForLoanedSecurities



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-31
Value3352557-15291360637281
Percentage of IncreaseDecreaseInCollateralForLoanedSecurities100.0100.0100.0100.0100.0100.0100.0

lnc:IndexedAnnuityAndUniversalLifeNetDerivativeResultsAssociatedAmortizationIncomeExpenses



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-03-312012-06-302012-03-31
Value-152-8-121-224-4-1-6-1-56-3-5-3-2-16
Percentage of IndexedAnnuityAndUniversalLifeNetDerivativeResultsAssociatedAmortizationIncomeExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lnc:IndexedAnnuityAndUniversalLifeNetDerivativeResultsGrossGainLoss



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-31
Value-49-21-41-35-7-5-1-7-109-9-23-32-5-2621-16-23-12-1-8-5-322
Percentage of IndexedAnnuityAndUniversalLifeNetDerivativeResultsGrossGainLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lnc:InsuranceFees



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value15391934151714751550147014561401139313541376128812351469123912221216113410981032983958949990887907855864900818883769793788765766691701
Percentage of InsuranceFees100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lnc:IssuanceOfMortgageLoansOnRealEstate



Period End2020-03-312019-03-312018-03-312017-03-312016-03-31
Value8391103546341421
Percentage of IssuanceOfMortgageLoansOnRealEstate100.0100.0100.0100.0100.0

lnc:LiabilitiesForGuaranteesOnLongDurationContractsIncreaseDecreaseInReserves



Period End2020-03-312019-03-312018-03-312017-03-31
Value106-3611-5
Percentage of LiabilitiesForGuaranteesOnLongDurationContractsIncreaseDecreaseInReserves100.0100.0100.0100.0

lnc:NetChangeInCollateralOnInvestmentsAndDerivatives



Period End2020-03-312019-03-312018-03-312017-03-312016-03-31
Value3411488-32-32106
Percentage of NetChangeInCollateralOnInvestmentsAndDerivatives100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

lnc:OtherComprehensiveIncomeLossTaxReclassificationAdjustmentForGainsLossesInNetIncome

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-31
Value-635416-6225
Percentage of OtherComprehensiveIncomeLossTaxReclassificationAdjustmentForGainsLossesInNetIncome100.0100.0100.0100.0100.0100.0100.0100.0

lnc:OtherInvestmentsNetRealizedGainLoss



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-06-302017-03-312016-09-302016-06-302016-03-312015-03-312014-06-302013-09-302013-06-302012-09-30
Value-1-22-45142-2-3-4-3-60-73-21-10
Percentage of OtherInvestmentsNetRealizedGainLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lnc:PaymentsToAcquireAlternativeInvestments



Period End2020-03-312019-03-312018-03-312017-03-312016-03-31
Value79174635371
Percentage of PaymentsToAcquireAlternativeInvestments100.0100.0100.0100.0100.0

lnc:PercentOfPermanentLifeInsuranceSales



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302012-09-302012-06-302011-09-302011-06-302010-09-302010-06-30
Value0.290.250.290.290.380.30.350.260.280.260.350.330.290.330.260.340.460.510.4752.0
Percentage of PercentOfPermanentLifeInsuranceSales100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lnc:PriorYearClaimsAndClaimsAdjustmentExpenseInterest



Period End2020-03-312019-03-312018-03-31
Value434119
Percentage of PriorYearClaimsAndClaimsAdjustmentExpenseInterest100.0100.0100.0

lnc:PriorYearClaimsAndClaimsAdjustmentExpenseOtherExcludingInterest



Period End2020-03-312019-03-312018-03-31
Value-65-85-58
Percentage of PriorYearClaimsAndClaimsAdjustmentExpenseOtherExcludingInterest100.0100.0100.0

lnc:ProceedsFromSaleAndRepaymentOfAlternativeInvestments



Period End2020-03-312019-03-312018-03-312017-03-312016-03-31
Value5532315332
Percentage of ProceedsFromSaleAndRepaymentOfAlternativeInvestments100.0100.0100.0100.0100.0

lnc:ProvisionForLoanLossesExpensedAllowanceRecorded



Period End2020-03-31
Value71
Percentage of ProvisionForLoanLossesExpensedAllowanceRecorded100.0

us-gaap:FinancingReceivablePortfolioSegment

us-gaap:CommercialRealEstatePortfolioSegment



Period End2020-03-31
Value64
Percentage of ProvisionForLoanLossesExpensedAllowanceRecorded90.1

us-gaap:ResidentialPortfolioSegment



Period End2020-03-31
Value7
Percentage of ProvisionForLoanLossesExpensedAllowanceRecorded9.9

lnc:RealizedGainLossExcludingOtherThanTemporaryImpairmentLossesOnSecurities



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value-24-9-113-354-53-614-48-6-3550-17-784517-359338-15-92-408710276-38-98-1381737-57891627-68-286-325-74
Percentage of RealizedGainLossExcludingOtherThanTemporaryImpairmentLossesOnSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lnc:RealizedGainLossOnMarkToMarketOnCertainInstruments



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value4722-37-121-10231-2-511-2-88-16-2112-187-2021-993459-195813-105-1
Percentage of RealizedGainLossOnMarkToMarketOnCertainInstruments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentType

us-gaap:Mortgages



Period End2020-03-31
Value7
Percentage of RealizedGainLossOnMarkToMarketOnCertainInstruments14.9

lnc:RepaymentAndMaturitiesOfMortgageLoansOnRealEstate



Period End2020-03-312019-03-312018-03-312017-03-312016-03-31
Value227242261229182
Percentage of RepaymentAndMaturitiesOfMortgageLoansOnRealEstate100.0100.0100.0100.0100.0

lnc:StrategicDigitizationExpense



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value1216151518161510149
Percentage of StrategicDigitizationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lnc:TotalRealizedGainLossRelatedToCertainInvestments



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-30
Value-86-35-11-20-11-13-21-19-18-13-42-65-107-26-1-27-71-5-33-25-14-54-51-48-56-44-34-17-94-26-5-55-127-124-154
Percentage of TotalRealizedGainLossRelatedToCertainInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lnc:TransfersToAndFromSeparateAccountsNet



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value-3235076863565496577436843166156045565623726197725044-734-671-682-682-538-620-408
Percentage of TransfersToAndFromSeparateAccountsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lnc:VariableAnnuityNetDerivativesResultsAssociatedAmortizationIncomeExpense



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value-93-7-28-71-75-31444247-417-5637-7-11-22-3322122-11-7
Percentage of VariableAnnuityNetDerivativesResultsAssociatedAmortizationIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lnc:VariableAnnuityNetDerivativesResultsGrossGainLoss



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value4028-43-215-32-1133-4123-2890371111944-151163531-425-505792148-133-93-123410
Percentage of VariableAnnuityNetDerivativesResultsGrossGainLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lnc:WithdrawalsOfFixedAccountValuesIncludingFixedPortionOfVariable



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value16841570149815301413140814431281158814921291132013001235131512009163-1375-1232-1251-1248-997-1695-1590
Percentage of WithdrawalsOfFixedAccountValuesIncludingFixedPortionOfVariable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument

us-gaap:AvailableForSaleSecuritiesGrossRealizedGains

us-gaap:FixedMaturities



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value682012141147
Percentage of AvailableForSaleSecuritiesGrossRealizedGains100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument

us-gaap:AvailableForSaleSecuritiesGrossRealizedLosses

us-gaap:FixedMaturities



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value814172721113022
Percentage of AvailableForSaleSecuritiesGrossRealizedLosses100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BenefitsLossesAndExpenses



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value439138634888388936974064373235693174405730013044302530582913289330082820344829322942325328102745274926562567258125392564253624572407301924092363224624092310227521792269202019362795
Percentage of BenefitsLossesAndExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidationItems

us-gaap:BusinessCombinationAcquisitionRelatedCosts

us-gaap:MaterialReconcilingItems



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value43133158354
Percentage of BusinessCombinationAcquisitionRelatedCosts100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect



Period End2020-03-312019-03-312018-03-312017-03-31
Value3639-752629-799
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect100.0100.0100.0100.0

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

us-gaap:ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1

us-gaap:InterestRateContract, us-gaap:FairValueHedging, us-gaap:DesignatedAsHedgingInstrument, lnc:NetInvestmentIncome



Period End2020-03-312019-09-302019-06-302019-03-31
Value-127-44-34-24
Percentage of ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1100.0100.0100.0100.0

us-gaap:InterestRateContract, us-gaap:FairValueHedging, us-gaap:DesignatedAsHedgingInstrument, us-gaap:InterestExpense



Period End2020-03-312019-09-302019-06-302019-03-31
Value-82624934
Percentage of ChangeInUnrealizedGainLossOnFairValueHedgingInstruments164.6-140.9-144.1-141.7

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

us-gaap:ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge1

us-gaap:InterestRateContract, us-gaap:FairValueHedging, us-gaap:DesignatedAsHedgingInstrument, lnc:NetInvestmentIncome



Period End2020-03-312019-09-302019-06-302019-03-31
Value127443424
Percentage of ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge1100.0100.0100.0100.0

us-gaap:InterestRateContract, us-gaap:FairValueHedging, us-gaap:DesignatedAsHedgingInstrument, us-gaap:InterestExpense



Period End2020-03-312019-09-302019-06-302019-03-31
Value82-62-49-34
Percentage of ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge164.6-140.9-144.1-141.7

us-gaap:CommonStockDividendsPerShareDeclared



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value0.40.370.370.370.330.330.330.290.290.290.250.250.250.20.20.20.160.120.120.079999999999999990.080.080.080000000000000020.049999999999999990.050.050.050.0099999999999999980.010.010.0100000000000000020.0099999999999999980.010.01
Percentage of CommonStockDividendsPerShareDeclared100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ComprehensiveIncomeNetOfTax



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value-2617175122462298125-647-1272566127571664915891294-54-136585716211441219194-137112-111731081188-5331590658336
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConcentrationRiskByBenchmark, us-gaap:ConcentrationRiskByType

us-gaap:ConcentrationRiskPercentage1

lnc:InvestedAssets, lnc:ConsumerNonCyclicalIndustry



Period End2020-03-312019-03-312018-03-31
Value0.120.120.13
Percentage of ConcentrationRiskPercentage1100.0100.0100.0

lnc:InvestedAssets, us-gaap:FinancialService



Period End2020-03-312019-03-31
Value0.120.13
Percentage of ConcentrationRiskPercentage1100.0108.3

us-gaap:StatementGeographical, us-gaap:ConcentrationRiskByBenchmark, us-gaap:ConcentrationRiskByType, us-gaap:FinancingReceivablePortfolioSegment

stpr:CA, us-gaap:GeographicConcentrationRisk, us-gaap:Mortgages, us-gaap:CommercialRealEstatePortfolioSegment



Period End2020-03-312019-03-31
Value0.240.23
Percentage of ConcentrationRiskPercentage1200.0191.7

stpr:CA, us-gaap:GeographicConcentrationRisk, us-gaap:Mortgages, us-gaap:ResidentialPortfolioSegment



Period End2020-03-312019-03-31
Value0.340.3
Percentage of ConcentrationRiskPercentage1283.3250.0

stpr:FL, us-gaap:GeographicConcentrationRisk, us-gaap:Mortgages, us-gaap:ResidentialPortfolioSegment



Period End2020-03-312019-03-31
Value0.180.19
Percentage of ConcentrationRiskPercentage1150.0158.3

stpr:TX, us-gaap:GeographicConcentrationRisk, us-gaap:Mortgages, us-gaap:CommercialRealEstatePortfolioSegment



Period End2020-03-312019-03-31
Value0.110.12
Percentage of ConcentrationRiskPercentage191.7100.0

us-gaap:DebtAndEquitySecuritiesRealizedGainLoss



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value-24-11-117-362-55-712
Percentage of DebtAndEquitySecuritiesRealizedGainLoss100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentRisk, us-gaap:StatementEquityComponents

lnc:AssociatedAmortizationOfDacVobaDsiAndDfel, us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-312019-03-312018-03-31
Value32-1-4
Percentage of DebtAndEquitySecuritiesRealizedGainLoss-133.30.3-33.3

us-gaap:StatementEquityComponents

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-312019-03-312018-03-31
Value-2-15-18
Percentage of DebtAndEquitySecuritiesRealizedGainLoss8.34.1-150.0

us-gaap:DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotPreviouslyRecorded



Period End2020-03-312019-03-31
Value208
Percentage of DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotPreviouslyRecorded100.0100.0

us-gaap:FinancialInstrument

us-gaap:CorporateBondSecurities



Period End2020-03-31
Value20
Percentage of DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotPreviouslyRecorded100.0

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

us-gaap:DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet

us-gaap:ForeignExchangeContract, us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument, lnc:NetInvestmentIncome



Period End2020-03-312019-09-302019-06-302019-03-31
Value111087
Percentage of DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet100.0100.0100.0100.0

us-gaap:ForeignExchangeContract, us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument, lnc:RealizedGainLoss



Period End2020-03-312019-09-302019-06-302019-03-31
Value1531
Percentage of DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet9.150.037.514.3

us-gaap:InterestRateContract, us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument, us-gaap:InterestExpense



Period End2020-03-312019-09-302019-03-31
Value-3-1-1
Percentage of DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet-27.3-10.0-14.3

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

us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet

lnc:GlbEmbeddedDerivativesReserves, us-gaap:Nondesignated, lnc:RealizedGainLoss



Period End2020-03-312019-09-302019-06-302019-03-31
Value-4369-715-371286
Percentage of DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet100.0100.0100.0100.0

lnc:IndexedAnnuityContracts, us-gaap:Nondesignated, lnc:RealizedGainLoss



Period End2020-03-312019-09-302019-06-302019-03-31
Value1028-23-110-239
Percentage of DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet-23.53.229.6-83.6

lnc:ReinsuranceRelated, us-gaap:Nondesignated, lnc:RealizedGainLoss



Period End2020-03-312019-09-302019-06-302019-03-31
Value463-30-133-174
Percentage of DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet-10.64.235.8-60.8

us-gaap:CreditRiskContract, us-gaap:Nondesignated, lnc:RealizedGainLoss



Period End2020-03-31
Value-4
Percentage of DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet0.1

us-gaap:EquityContract, us-gaap:Nondesignated, lnc:RealizedGainLoss



Period End2020-03-312019-09-302019-06-302019-03-31
Value107017345-458
Percentage of DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet-24.5-24.2-12.1-160.1

us-gaap:InterestRateContract, us-gaap:Nondesignated, lnc:RealizedGainLoss



Period End2020-03-312019-09-302019-06-302019-03-31
Value2150699569357
Percentage of DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet-49.2-97.8-153.4124.8

us-gaap:StatementEquityComponents

us-gaap:DividendsCommonStockCash

us-gaap:RetainedEarnings



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value7874747671737265-59-51-42-33-33-22-22-23-23-16-15-17-17-3-3-3-1-4-3-3
Percentage of DividendsCommonStockCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value0.210.210.210.210.210.210.210.350.350.350.350.350.350.350.350.350.350.350.350.350.350.350.350.350.350.350.350.350.350.35
Percentage of EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EquitySecuritiesFvNiRealizedGainLoss



Period End2020-03-312019-03-31
Value-196
Percentage of EquitySecuritiesFvNiRealizedGainLoss100.0100.0

us-gaap:FinancialInstrument

us-gaap:EquitySecurities



Period End2020-03-312019-03-31
Value-186
Percentage of EquitySecuritiesFvNiRealizedGainLoss94.7100.0

us-gaap:FinancialInstrument, us-gaap:InvestmentType

us-gaap:FairValueAssetRecurringBasisStillHeldUnrealizedGainLossOci

lnc:HybridAndRedeemablePreferredSecurities, us-gaap:FixedMaturities



Period End2020-03-31
Value-5
Percentage of FairValueAssetRecurringBasisStillHeldUnrealizedGainLossOci100.0

us-gaap:AssetBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-31
Value-3
Percentage of FairValueAssetRecurringBasisStillHeldUnrealizedGainLossOci60.0

us-gaap:CorporateBondSecurities, us-gaap:FixedMaturities



Period End2020-03-31
Value-325
Percentage of FairValueAssetRecurringBasisStillHeldUnrealizedGainLossOci6500.0

us-gaap:ForeignGovernmentDebtSecurities, us-gaap:FixedMaturities



Period End2020-03-31
Value-2
Percentage of FairValueAssetRecurringBasisStillHeldUnrealizedGainLossOci40.0

us-gaap:InvestmentType

us-gaap:FixedMaturities



Period End2020-03-31
Value-335
Percentage of FairValueAssetRecurringBasisStillHeldUnrealizedGainLossOci6700.0

us-gaap:FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-30
Value-4033-472-293162564138653347229659626-198-1237-1174721-27410011-301209579
Percentage of FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument, us-gaap:IncomeStatementLocation

lnc:GuaranteedLivingBenefitsEmbeddedDerivativeReserves, lnc:RealizedGainLoss



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-30
Value-4867-665-267481576313376428231747712-409-824-1297615-161-17571-172508557
Percentage of FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss120.7140.991.1296.9102.1226.857.6123.3100.9113.4113.7206.666.6110.585.358.8-175.0645.557.1243.196.2

lnc:IndexedAnnuityContracts, lnc:RealizedGainLoss



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-30
Value-61-11-44-32-11-6-42-14-1-1-23-35-8-2620-16-24513
Percentage of FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss1.52.315.0-19.8-2.0-4.3-0.60.6-2.1-0.20.51.93.0-1.19.520.0-145.58.02.42.2

us-gaap:DerivativeFinancialInstrumentsAssets, lnc:RealizedGainLoss



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-30
Value89520418-287-1-169281-83-2-74-94216-393162111-95262-57-110-343-4
Percentage of FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss-22.2-43.2-6.1-177.2-0.2-122.543.0-23.9-0.9-11.2-15.0-109.131.8-13.815.434.7262.0-518.236.5-164.1-0.7

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-30
Value-2376-552-407-33758-5554017741328367-280-1221-1001719-447-63-159-41327493337288
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument

us-gaap:DerivativeFinancialInstrumentsAssets



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-30
Value99718471-383-115-108329-1358-69-89183-440158122-94278-42-108-36810-258-268
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1-42.0-33.3-17.4113.6-198.3196.460.9-7.3141.5-21.0-24.3-65.436.0-15.817.021.0-441.326.426.2-1363.02.0-76.6-93.1

us-gaap:TradingAssetsExcludingDebtAndEquitySecurities



Period End2020-03-312019-09-302019-06-302018-06-302018-03-31
Value-32102-3-2
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings11.3-1.8-0.55.5-0.4

us-gaap:FinancialInstrument, us-gaap:InvestmentType

lnc:GLBCededEmbeddedDerivatives, us-gaap:OtherAssets



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value66813061-22-6-4-6-32-31-87
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1-28.1-23.6-15.06.5-10.37.3-1.1-18.1-75.6-26.5

lnc:GLBCededEmbeddedDerivatives, us-gaap:OtherLiabilities



Period End2020-03-312019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value98-8-62-20-44-7
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1-0.4-2.02.4-106.936.4-8.1-4.0

lnc:GLBDirectEmbeddedDerivatives, us-gaap:OtherAssets



Period End2020-03-312019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value-450-43931640013820727272226
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings118.9107.9-93.8689.7-250.938.3153.7175.668.9

lnc:GLBDirectEmbeddedDerivatives, us-gaap:OtherLiabilities



Period End2020-03-312019-09-302019-06-302017-03-31
Value-4596-845-1371
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1193.4153.10.2113.1

lnc:IndexedAnnuityCededEmbeddedDerivatives, us-gaap:OtherAssets



Period End2020-03-312019-03-31
Value-11577
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings14.8-22.8

lnc:IndexedAnnuityContracts, lnc:FutureContractBenefits



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-30
Value1143-30-154-316-164-6252-47-64-120-64-19786-9
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1-48.15.437.893.8-282.8112.79.6-26.6-156.1-36.6-17.46.8-0.6-8.6-1.3

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-30
Value-1197397120-86-162-446127971112411018-18530413416822-2
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument

us-gaap:DerivativeFinancialInstrumentsAssets



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-30
Value2791196946-55-39-1996523-1799253-1234837801342428
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss-234.5163.071.138.364.024.1475.019.651.223.7-9.163.783.6294.466.5160.0925.059.779.8109.1-1400.0

us-gaap:FinancialInstrument, us-gaap:InvestmentType

lnc:HybridAndRedeemablePreferredSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-30
Value-63-111383-1-3-2-2-1
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss5.02.51.2-0.6-25.06.56.33.1-9.1-2.4-1.8-11.10.5

us-gaap:AssetBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-09-302019-06-302018-03-312017-09-302017-03-312016-03-31
Value-411-1-11-1
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss3.41.41.025.0-2.21.0-0.9

us-gaap:CorporateBondSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-30
Value-385-492470-30-12417355365154618-34-58
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss323.5-67.124.758.334.976.5-425.076.141.767.0136.437.116.4-188.931.4

us-gaap:ForeignGovernmentDebtSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-09-302019-06-302019-03-312018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302015-09-302015-06-30
Value-3231-21-1-111-31
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss2.52.73.10.850.02.2-0.8-1.09.10.8-16.7-0.5

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-30
Value548600956625230593294237225126250268174197235136265275169136319251301
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument

us-gaap:DerivativeFinancialInstrumentsAssets



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-30
Value11813214113196616850484747454052474045433645423255
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues21.522.014.721.041.710.323.121.121.337.318.816.823.026.420.029.417.015.621.333.113.212.718.3

us-gaap:TradingAssetsExcludingDebtAndEquitySecurities



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-30
Value3715037120722
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues6.825.038.833.10.90.3

us-gaap:FinancialInstrument, us-gaap:InvestmentType

lnc:IndexedAnnuityCededEmbeddedDerivatives, us-gaap:OtherAssets



Period End2020-03-312019-03-31
Value919
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues1.63.0

lnc:IndexedAnnuityContracts, lnc:FutureContractBenefits



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-30
Value11-124-149-148-83-48-27-14-13-18-13-19-26-24-16
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues2.0-20.7-15.6-23.7-36.1-8.1-9.2-5.9-5.8-14.3-5.2-7.1-14.9-12.2-6.8

us-gaap:AssetBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302016-06-302015-09-30
Value37791545217221513
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues6.813.216.18.37.43.75.66.6

us-gaap:CorporateBondSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-30
Value336337268267162400223167162389217211693131
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues61.356.228.042.770.467.575.970.572.030.236.864.266.747.255.7

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-30
Value221391217-4551395914832-21355523545707212375304531-4744
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument

us-gaap:DerivativeFinancialInstrumentsAssets



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-30
Value12336-415-455-1162329-2944643432849471061920278-5343
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales55.792.3-33.388.2100.0-7.910.215.590.6138.083.682.7122.962.270.065.386.225.366.760.025.8112.897.7

us-gaap:TradingAssetsExcludingDebtAndEquitySecurities



Period End2020-03-312018-06-302017-09-30
Value252410
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales11.317.36.8

us-gaap:FinancialInstrument, us-gaap:InvestmentType

us-gaap:CorporateBondSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-06-302019-03-312018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-30
Value7316210353114362208-9319
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales33.0133.311.874.189.877.09.4-29.136.415.4-25.76.727.1

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-30
Value555710139-112448331725148-136-11-10-19-3-13-8-2230
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument

us-gaap:TradingAssetsExcludingDebtAndEquitySecurities



Period End2020-03-312019-09-302019-03-31
Value1841
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements32.77.00.7

us-gaap:FinancialInstrument, us-gaap:InvestmentType

lnc:IndexedAnnuityCededEmbeddedDerivatives, us-gaap:OtherAssets



Period End2020-03-312019-03-31
Value22126
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements40.090.6

lnc:IndexedAnnuityContracts, lnc:FutureContractBenefits



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-30
Value-51-29-60-39-76-56-47-11-47-39-54-24-31-50
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements-92.7-50.9-600.0-28.1690.9-233.3-97.9-33.3-276.5-156.00.0-171.4-387.55000.0

us-gaap:AssetBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-09-302019-06-302016-06-30
Value151021
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements27.317.520.07.1

us-gaap:CorporateBondSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-30
Value514434516579944364635046363025
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements92.777.2340.036.7-590.9329.2195.8130.3376.5252.00.0328.6450.0-3000.069.4

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-31
Value14751783113661171920015017016471061054015015597842163275115170
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument

us-gaap:TradingAssetsExcludingDebtAndEquitySecurities



Period End2020-03-312019-06-302017-09-30
Value2351
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel315.671.40.9

us-gaap:FinancialInstrument, us-gaap:InvestmentType

us-gaap:AssetBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312017-06-302016-06-30
Value5154
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel33.478.92.4

us-gaap:CorporateBondSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-06-30
Value1195128311340116116014716516479
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel381.0100.028.6100.0100.0100.060.699.15.380.098.097.1100.074.5

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-31
Value-35-235-273-166-148-70-232-7-10714721-509139-601399-24533-199-145-206131-317-272-160
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument

us-gaap:TradingAssetsExcludingDebtAndEquitySecurities



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302017-09-30
Value23-113-86-37-61
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet-65.748.131.522.34.1-14.3

us-gaap:FinancialInstrument, us-gaap:InvestmentType

us-gaap:AssetBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302017-09-302017-06-302017-03-312016-09-302016-06-30
Value-90-173-21-105-111-1514-5-274
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet257.173.67.763.375.0214.3-13.1-3.4-128.6-0.8

us-gaap:CorporateBondSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-30
Value4251-69-17-31-47759-11316682140-663
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet-120.0-21.725.310.220.967.1-3.0-842.90.989.1314.3-16.1100.7110.023.1

us-gaap:ResidentialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-03-312018-03-312016-09-30
Value-10-7-12-13
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet28.64.25.2-61.9

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-31
Value18228628024915973298124126531296792567936285117175822324832592387330
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument, us-gaap:InvestmentType

us-gaap:AssetBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302017-09-302017-06-302017-03-312016-09-30
Value9517321105111151527
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel352.260.57.542.269.812.10.89.420.9

us-gaap:CorporateBondSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-30
Value7771100425033572298183246676
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel342.325.440.226.468.511.146.01.654.762.812.296.098.581.7

us-gaap:ResidentialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-03-312018-03-312016-09-30
Value1071216
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel35.52.84.012.4

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPurchasesSalesIssuesSettlements



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-30
Value11339380140956725862-1013910729171567747-207488-29-10185
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPurchasesSalesIssuesSettlements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument

us-gaap:DerivativeFinancialInstrumentsAssets



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-30
Value-117225970431-39-61-85-80251-69-29-17-52-108-94-72-69-55-73-50
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPurchasesSalesIssuesSettlements-103.55.67.417.176.0-15.1-98.484.2-205.1234.6-237.9-17.0-30.4-67.5-229.8470.0-97.3-78.4189.7730.0-27.0

us-gaap:TradingAssetsExcludingDebtAndEquitySecurities



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302017-09-30
Value-61463712062-22-10
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPurchasesSalesIssuesSettlements-5.337.246.350.40.4-8.59.9

us-gaap:FinancialInstrument, us-gaap:InvestmentType

lnc:IndexedAnnuityCededEmbeddedDerivatives, us-gaap:OtherAssets



Period End2020-03-312019-03-31
Value-13-107
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPurchasesSalesIssuesSettlements-11.5-26.2

lnc:IndexedAnnuityContracts, lnc:FutureContractBenefits



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-30
Value62-95-89-109-7820-3342141552634
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPurchasesSalesIssuesSettlements54.9-24.2-11.1-26.7-1.23.132.33.087.219.6141.42.98.933.872.3

us-gaap:AssetBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302016-06-302015-09-30
Value2269152521751413
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPurchasesSalesIssuesSettlements19.517.619.012.73.01.98.216.9

us-gaap:CorporateBondSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-30
Value1652561712008815774-3557-204-74118286061
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPurchasesSalesIssuesSettlements146.065.121.348.915.560.9119.434.7146.2-190.7-255.269.050.077.9129.8

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationTransfersNet



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-30
Value-35-235-273-166-148-70-232-7-10714721-509139-601399-24533-199-145-206
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationTransfersNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument

us-gaap:TradingAssetsExcludingDebtAndEquitySecurities



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302017-09-30
Value23-113-86-37-61
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationTransfersNet-65.748.131.522.34.1-14.3

us-gaap:FinancialInstrument, us-gaap:InvestmentType

us-gaap:AssetBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302017-09-302017-06-302017-03-312016-09-302016-06-30
Value-90-173-21-105-111-1514-5-274
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationTransfersNet257.173.67.763.375.0214.3-13.1-3.4-128.6-0.8

us-gaap:CorporateBondSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-30
Value4251-69-17-31-47759-11316682140-663
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationTransfersNet-120.0-21.725.310.220.967.1-3.0-842.90.989.1314.3-16.1100.7110.023.1

us-gaap:ResidentialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-03-312018-03-312016-09-30
Value-10-7-12-13
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationTransfersNet28.64.25.2-61.9

us-gaap:IncreaseDecreaseInAccruedInvestmentIncomeReceivable



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value3765596238808763-5246-545-4229556144-44-5-5154-62-18-49
Percentage of IncreaseDecreaseInAccruedInvestmentIncomeReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccruedLiabilities



Period End2020-03-312019-03-312018-03-31
Value-317-56-41
Percentage of IncreaseDecreaseInAccruedLiabilities100.0100.0100.0

us-gaap:IncreaseDecreaseInIncomeTaxes



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-31
Value-18166840-38-284866
Percentage of IncreaseDecreaseInIncomeTaxes100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherPolicyholderFunds



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1389-348-104-281262162233-203133-384264-144-16-230247124-2867286318
Percentage of IncreaseDecreaseInOtherPolicyholderFunds100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInPremiumsReceivable



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value9737843525-21846014-22-49292513-31661931-2718780937
Percentage of IncreaseDecreaseInPremiumsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncrementalCommonSharesAttributableToNonvestedSharesWithForfeitableDividends



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-30
Value00011111111011111111110111-80126081559481683400000000
Percentage of IncrementalCommonSharesAttributableToNonvestedSharesWithForfeitableDividends100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestCreditedToPolicyholdersAccountBalances



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value725705680678652647653647646647642639633622629625631636633627627622619610616625624625625614632622613618615614607627
Percentage of InterestCreditedToPolicyholdersAccountBalances100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestExpenseDebt



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-30
Value68113707169689163636466686867696867676767656468
Percentage of InterestExpenseDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentRisk, us-gaap:StatementEquityComponents

us-gaap:InterestRateContract, us-gaap:AccumulatedNetGainLossFromCashFlowHedgesIncludingPortionAttributableToNoncontrollingInterest



Period End2020-03-312019-03-312018-03-312017-03-31
Value3134
Percentage of InterestExpenseDebt4.41.43.36.2

us-gaap:LiabilitiesForGuaranteesOnLongDurationContractsPaymentForBenefits



Period End2020-03-312019-03-312018-03-312017-03-312016-03-31
Value863614
Percentage of LiabilitiesForGuaranteesOnLongDurationContractsPaymentForBenefits100.0100.0100.0100.0100.0

us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1



Period End2020-03-312019-03-312018-03-31
Value240215126
Percentage of LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1100.0100.0100.0

us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1



Period End2020-03-312019-03-312018-03-31
Value518482213
Percentage of LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1100.0100.0100.0

us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1



Period End2020-03-312019-03-312018-03-31
Value863759325
Percentage of LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:NonoperatingIncomeExpense

us-gaap:AccumulatedNetGainLossFromCashFlowHedgesIncludingPortionAttributableToNoncontrollingInterest



Period End2020-03-312019-03-312018-03-312017-03-31
Value9837
Percentage of NonoperatingIncomeExpense100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax

lnc:UnrealizedGainLossOnDerivativeInstruments



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-31
Value153-14-50-20-1137-211
Percentage of OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-31
Value-1501452197-342-13
Percentage of OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax-98.0-100.0-104.0-95.0-63.6-91.9-100.0-118.2

us-gaap:AccumulatedTranslationAdjustment



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-31
Value-10352-2-1-5-3
Percentage of OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax-6.5-21.4-10.0-10.018.2-2.7250.0-27.3

us-gaap:OtherComprehensiveIncomeLossNetOfTax



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-31
Value-2669191218832046-365-1032-163914886428118212641086-281-1709557-277746890-143-1688-227771757-57
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-03-31
Value-2669191218832046-365-1032-16392811086557890-227-57
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax

us-gaap:AccumulatedDefinedBenefitPlansAdjustment



Period End2020-03-312019-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-03-31
Value10-1-228-16-2
Percentage of OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-31
Value21518344-184-2
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax

lnc:UnrealizedGainLossOnDerivativeInstruments



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-31
Value-71-361620-129-108-3048
Percentage of OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentType

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax

us-gaap:FixedMaturities



Period End2020-03-31
Value22
Percentage of OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax100.0

us-gaap:StatementEquityComponents

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-03-31
Value-44983556-3063530246911462003-732-109
Percentage of OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax-20445.50.00.00.00.00.00.00.00.0

us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-03-31
Value720-563432-151-641-318-490161-27
Percentage of OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherCostAndExpenseOperating



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value1085155212721176136711771057102010341015128397897614321014101399596397192889889595210478288567621040638725912689754714695762694643
Percentage of OtherCostAndExpenseOperating100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentRisk, us-gaap:StatementEquityComponents

lnc:AssociatedAmortizationOfDacVobaDsiAndDfel, us-gaap:AccumulatedNetGainLossFromCashFlowHedgesIncludingPortionAttributableToNoncontrollingInterest



Period End2020-03-312019-03-312018-03-31
Value611
Percentage of OtherCostAndExpenseOperating0.60.10.1

us-gaap:OtherNoncashIncomeExpense



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-12-312012-09-302012-03-312011-12-312011-09-30
Value-57-131-32-348399-112-8888-3834-116-53
Percentage of OtherNoncashIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForLossesAndLossAdjustmentExpense



Period End2020-03-312019-03-312018-03-31
Value758697339
Percentage of PaymentsForLossesAndLossAdjustmentExpense100.0100.0100.0

us-gaap:PaymentsForProceedsFromOtherInvestingActivities



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value616232162732223680561334672119232520191024231216
Percentage of PaymentsForProceedsFromOtherInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForProceedsFromPolicyLoans



Period End2020-03-312019-03-312018-03-312017-03-312016-03-31
Value94-11-11-18-11
Percentage of PaymentsForProceedsFromPolicyLoans100.0100.0100.0100.0100.0

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value1317145613681298126910411158188215031488164213411336113114261431155911681006919797914888731
Percentage of ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromPaymentsForTradingSecurities



Period End2020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value235-12093923281211129857521555721532-1629233-71-237
Percentage of ProceedsFromPaymentsForTradingSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleMaturityAndCollectionsOfInvestments



Period End2020-03-312019-03-312018-03-312017-03-31
Value3952381427503
Percentage of ProceedsFromSaleMaturityAndCollectionsOfInvestments100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax

us-gaap:AccumulatedNetGainLossFromCashFlowHedgesIncludingPortionAttributableToNoncontrollingInterest



Period End2020-03-312019-03-312018-03-31
Value372
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax100.0100.0100.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-312019-03-312018-03-31
Value30-16-22
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax1000.0-228.6-1100.0

us-gaap:StatementEquityComponents

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax

us-gaap:AccumulatedNetGainLossFromCashFlowHedgesIncludingPortionAttributableToNoncontrollingInterest



Period End2020-03-312019-03-312018-03-31
Value262
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax100.0100.0100.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-312019-03-312018-03-31
Value24-13-17
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax1200.0-216.7-850.0

us-gaap:StatementEquityComponents

us-gaap:ReclassificationFromAociCurrentPeriodTax

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-312019-03-312018-03-31
Value6-3-5
Percentage of ReclassificationFromAociCurrentPeriodTax100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value442543444638431039654531353334312366935113577350032553525330732433171371633813304368534113282317631223009299928442964295428992714257025482804271426622613260525272403208218832132
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementClassOfStock

us-gaap:StockIssuedDuringPeriodSharesShareBasedCompensation

us-gaap:CommonStock



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-31
Value0000000001000001000000000
Percentage of StockIssuedDuringPeriodSharesShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation

us-gaap:CommonStock



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-03-31
Value91716-514127446277108
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementClassOfStock

us-gaap:StockRepurchasedAndRetiredDuringPeriodShares

us-gaap:CommonStock



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-30
Value322321232465-3-2-6-2-3-2-2-4-3-3-4-6-614275932-6712700-5149393-2-1000000
Percentage of StockRepurchasedAndRetiredDuringPeriodShares100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:StockRepurchasedAndRetiredDuringPeriodValue

us-gaap:CommonStock



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302017-03-312016-03-312015-03-312014-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1006660102693874-142-156-78-88-92-100-150-150-200-150-133-62-25000
Percentage of StockRepurchasedAndRetiredDuringPeriodValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:RetainedEarnings



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302017-03-312016-03-312015-03-312014-03-312013-03-31
Value12584904810662126-58-194-72-12
Percentage of StockRepurchasedAndRetiredDuringPeriodValue125.0127.3150.047.1153.6163.2170.340.8124.492.313.6

us-gaap:SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense



Period End2020-03-312019-03-312018-03-31
Value885803364
Percentage of SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense100.0100.0100.0

us-gaap:BalanceSheetLocation

lnc:AmortizedCostOfHedgedAsset

us-gaap:FixedMaturities



Period End2020-03-312019-12-31
Value890776
Percentage of AmortizedCostOfHedgedAsset100.0100.0

us-gaap:BalanceSheetLocation

lnc:AmortizedCostOfHedgedLiabilities

us-gaap:LongTermDebt



Period End2020-03-312019-12-31
Value9541035
Percentage of AmortizedCostOfHedgedLiabilities100.0100.0

us-gaap:InvestmentType

lnc:AmortizedCostOfPortfolioRatedBelowInvestmentGrade

us-gaap:CorporateBondSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value390032003100320033003200320034003400350033003500360038003600
Percentage of AmortizedCostOfPortfolioRatedBelowInvestmentGrade100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueConcentrationOfRiskDisclosureItems

lnc:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanSixMonthsAggregateLosses

lnc:FairValueDeclineGreaterThanTwentyPercent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value80351915812447593357182652
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanSixMonthsAggregateLosses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueConcentrationOfRiskDisclosureItems

lnc:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanSixMonthsFairValue

lnc:FairValueDeclineGreaterThanTwentyPercent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value1528154544233951311731021564364174
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanSixMonthsFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentType

lnc:AvailableForSaleSecuritiesFairValueDisclosurePercentInvestmentGrade

us-gaap:CorporateBondSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value0.960.960.970.960.960.960.960.960.960.960.960.960.960.950.96
Percentage of AvailableForSaleSecuritiesFairValueDisclosurePercentInvestmentGrade100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueConcentrationOfRiskDisclosureItems

lnc:AvailableForSaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsLessThanSixMonths

lnc:FairValueDeclineGreaterThanTwentyPercent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value185.07.012.015.07.045.020.023.018.026.017.021.019.0
Percentage of AvailableForSaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsLessThanSixMonths100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RelatedPartyTransactionsByRelatedParty

lnc:CarryingAmountOfInvestmentsInQualifiedAffordableHousingProjects

lnc:LimitedPartnershipsAndLimitedLiabilityCompanies



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value1113141618202526293132343537404347
Percentage of CarryingAmountOfInvestmentsInQualifiedAffordableHousingProjects100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lnc:CollateralPayableHeldForDerivativeInvestmentsCarryingValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value3943138816881140695637366468682765935105492389423823004215913872037107120511673127695794663895714181992256729533441213229802593102373080016701421617
Percentage of CollateralPayableHeldForDerivativeInvestmentsCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lnc:CollateralPayableHeldForDerivativeInvestmentsFairValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value3943138816881140695637366468682765935105492389423823004215913872037107120511673127695794663895714181992256729533441213229802593102373080016701421617
Percentage of CollateralPayableHeldForDerivativeInvestmentsFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CreditDerivativesByContractType

lnc:CreditDerivativeMaximumExposureNetOfCounterpartyThresholds

us-gaap:CreditDefaultSwapSellingProtection



Period End2020-03-312019-03-312017-12-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-312012-12-31
Value394555263564085103103103103103126-126-126-148
Percentage of CreditDerivativeMaximumExposureNetOfCounterpartyThresholds100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Range, us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType, us-gaap:MeasurementInputType, us-gaap:ValuationTechnique

lnc:DebtSecuritiesAvailableForSaleAndTradingMeasurementInput

srt:Maximum, us-gaap:FixedMaturities, us-gaap:FairValueInputsLevel3, lnc:HybridAndRedeemablePreferredSecurities, lnc:MeasurementInputLiquidityDurationAdjustment, us-gaap:IncomeApproachValuationTechnique



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value0.030.0140.0150.0160.0161.60.018
Percentage of DebtSecuritiesAvailableForSaleAndTradingMeasurementInput100.0100.0100.0100.0100.0100.0100.0

srt:Maximum, us-gaap:FixedMaturities, us-gaap:FairValueInputsLevel3, us-gaap:AssetBackedSecurities, lnc:MeasurementInputLiquidityDurationAdjustment, us-gaap:IncomeApproachValuationTechnique



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value0.060.030.030.030.032.90.03
Percentage of DebtSecuritiesAvailableForSaleAndTradingMeasurementInput200.0214.3200.0187.5187.5181.2166.7

srt:Maximum, us-gaap:FixedMaturities, us-gaap:FairValueInputsLevel3, us-gaap:CorporateBondSecurities, lnc:MeasurementInputLiquidityDurationAdjustment, us-gaap:IncomeApproachValuationTechnique



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value0.1880.0640.240.3220.328.60.248
Percentage of DebtSecuritiesAvailableForSaleAndTradingMeasurementInput626.7457.11600.02012.51875.01787.51377.8

srt:Maximum, us-gaap:FixedMaturities, us-gaap:FairValueInputsLevel3, us-gaap:ForeignGovernmentDebtSecurities, lnc:MeasurementInputLiquidityDurationAdjustment, us-gaap:IncomeApproachValuationTechnique



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value0.080.0250.0380.0270.0313.30.028
Percentage of DebtSecuritiesAvailableForSaleAndTradingMeasurementInput266.7178.6253.3168.8193.8206.2155.6

srt:Minimum, us-gaap:FixedMaturities, us-gaap:FairValueInputsLevel3, lnc:HybridAndRedeemablePreferredSecurities, lnc:MeasurementInputLiquidityDurationAdjustment, us-gaap:IncomeApproachValuationTechnique



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value0.030.0140.0150.0160.0161.60.018
Percentage of DebtSecuritiesAvailableForSaleAndTradingMeasurementInput100.0100.0100.0100.0100.0100.0100.0

srt:Minimum, us-gaap:FixedMaturities, us-gaap:FairValueInputsLevel3, us-gaap:AssetBackedSecurities, lnc:MeasurementInputLiquidityDurationAdjustment, us-gaap:IncomeApproachValuationTechnique



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value0.060.030.030.030.032.90.03
Percentage of DebtSecuritiesAvailableForSaleAndTradingMeasurementInput200.0214.3200.0187.5187.5181.2166.7

srt:Minimum, us-gaap:FixedMaturities, us-gaap:FairValueInputsLevel3, us-gaap:CorporateBondSecurities, lnc:MeasurementInputLiquidityDurationAdjustment, us-gaap:IncomeApproachValuationTechnique



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value0.0070.0010.0040.0090.0060.60.005
Percentage of DebtSecuritiesAvailableForSaleAndTradingMeasurementInput23.37.126.756.237.537.527.8

srt:Minimum, us-gaap:FixedMaturities, us-gaap:FairValueInputsLevel3, us-gaap:ForeignGovernmentDebtSecurities, lnc:MeasurementInputLiquidityDurationAdjustment, us-gaap:IncomeApproachValuationTechnique



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value0.0530.0210.0110.010.0141.30.011
Percentage of DebtSecuritiesAvailableForSaleAndTradingMeasurementInput176.7150.073.362.587.581.261.1

srt:WeightedAverage, us-gaap:FixedMaturities, us-gaap:FairValueInputsLevel3, lnc:HybridAndRedeemablePreferredSecurities, lnc:MeasurementInputLiquidityDurationAdjustment, us-gaap:IncomeApproachValuationTechnique



Period End2020-03-31
Value0.03
Percentage of DebtSecuritiesAvailableForSaleAndTradingMeasurementInput100.0

srt:WeightedAverage, us-gaap:FixedMaturities, us-gaap:FairValueInputsLevel3, us-gaap:AssetBackedSecurities, lnc:MeasurementInputLiquidityDurationAdjustment, us-gaap:IncomeApproachValuationTechnique



Period End2020-03-31
Value0.06
Percentage of DebtSecuritiesAvailableForSaleAndTradingMeasurementInput200.0

srt:WeightedAverage, us-gaap:FixedMaturities, us-gaap:FairValueInputsLevel3, us-gaap:CorporateBondSecurities, lnc:MeasurementInputLiquidityDurationAdjustment, us-gaap:IncomeApproachValuationTechnique



Period End2020-03-31
Value0.029
Percentage of DebtSecuritiesAvailableForSaleAndTradingMeasurementInput96.7

srt:WeightedAverage, us-gaap:FixedMaturities, us-gaap:FairValueInputsLevel3, us-gaap:ForeignGovernmentDebtSecurities, lnc:MeasurementInputLiquidityDurationAdjustment, us-gaap:IncomeApproachValuationTechnique



Period End2020-03-31
Value0.068
Percentage of DebtSecuritiesAvailableForSaleAndTradingMeasurementInput226.7

us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanToValue

lnc:DebtServiceCoverageRatio

us-gaap:CommercialRealEstatePortfolioSegment, lnc:LoanToValueRatioSeventyFiveToOneHundred



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value0.91.091.161.091.20.950.97
Percentage of DebtServiceCoverageRatio100.0100.0100.0100.0100.0100.0100.0

us-gaap:LoanToValue

lnc:LoanToValueRatioLessThanSixtyFive



Period End2020-03-312019-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value2.42.352.32.312.272.262.252.222.162.162.06
Percentage of DebtServiceCoverageRatio266.7215.60.00.00.0233.00.00.00.00.00.0

lnc:LoanToValueRatioSixtyFiveToSeventyFour



Period End2020-03-312019-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value1.851.871.791.841.931.941.921.891.891.871.6
Percentage of DebtServiceCoverageRatio205.6171.60.00.00.0200.00.00.00.00.00.0

us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanToValue

lnc:DebtServiceCoverageRatioCurrentFiscalYear

us-gaap:CommercialRealEstatePortfolioSegment, lnc:LoanToValueRatioLessThanSixtyFive



Period End2020-03-31
Value3.57
Percentage of DebtServiceCoverageRatioCurrentFiscalYear100.0

us-gaap:CommercialRealEstatePortfolioSegment, lnc:LoanToValueRatioSixtyFiveToSeventyFour



Period End2020-03-31
Value1.47
Percentage of DebtServiceCoverageRatioCurrentFiscalYear41.2

us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanToValue

lnc:DebtServiceCoverageRatioOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear

us-gaap:CommercialRealEstatePortfolioSegment, lnc:LoanToValueRatioLessThanSixtyFive



Period End2020-03-31
Value2.43
Percentage of DebtServiceCoverageRatioOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear100.0

us-gaap:CommercialRealEstatePortfolioSegment, lnc:LoanToValueRatioSeventyFiveToOneHundred



Period End2020-03-31
Value0.9
Percentage of DebtServiceCoverageRatioOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear37.0

us-gaap:CommercialRealEstatePortfolioSegment, lnc:LoanToValueRatioSixtyFiveToSeventyFour



Period End2020-03-31
Value1.68
Percentage of DebtServiceCoverageRatioOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear69.1

us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanToValue

lnc:DebtServiceCoverageRatioYearFiveOriginatedFourYearsBeforeCurrentFiscalYear

us-gaap:CommercialRealEstatePortfolioSegment, lnc:LoanToValueRatioLessThanSixtyFive



Period End2020-03-31
Value2.37
Percentage of DebtServiceCoverageRatioYearFiveOriginatedFourYearsBeforeCurrentFiscalYear100.0

us-gaap:CommercialRealEstatePortfolioSegment, lnc:LoanToValueRatioSixtyFiveToSeventyFour



Period End2020-03-31
Value1.92
Percentage of DebtServiceCoverageRatioYearFiveOriginatedFourYearsBeforeCurrentFiscalYear81.0

us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanToValue

lnc:DebtServiceCoverageRatioYearFourOriginatedThreeYearsBeforeCurrentFiscalYear

us-gaap:CommercialRealEstatePortfolioSegment, lnc:LoanToValueRatioLessThanSixtyFive



Period End2020-03-31
Value2.34
Percentage of DebtServiceCoverageRatioYearFourOriginatedThreeYearsBeforeCurrentFiscalYear100.0

us-gaap:CommercialRealEstatePortfolioSegment, lnc:LoanToValueRatioSixtyFiveToSeventyFour



Period End2020-03-31
Value2.67
Percentage of DebtServiceCoverageRatioYearFourOriginatedThreeYearsBeforeCurrentFiscalYear114.1

us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanToValue

lnc:DebtServiceCoverageRatioYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear

us-gaap:CommercialRealEstatePortfolioSegment, lnc:LoanToValueRatioLessThanSixtyFive



Period End2020-03-31
Value2.17
Percentage of DebtServiceCoverageRatioYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear100.0

us-gaap:CommercialRealEstatePortfolioSegment, lnc:LoanToValueRatioSixtyFiveToSeventyFour



Period End2020-03-31
Value1.48
Percentage of DebtServiceCoverageRatioYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear68.2

us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanToValue

lnc:DebtServiceCoverageRatioYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear

us-gaap:CommercialRealEstatePortfolioSegment, lnc:LoanToValueRatioLessThanSixtyFive



Period End2020-03-31
Value2.29
Percentage of DebtServiceCoverageRatioYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear100.0

us-gaap:CommercialRealEstatePortfolioSegment, lnc:LoanToValueRatioSixtyFiveToSeventyFour



Period End2020-03-31
Value1.78
Percentage of DebtServiceCoverageRatioYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear77.7

lnc:DerivativeInstrumentsGrossAmountOfRecognizedLiabilities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value16881005132410669107848796046349556586115891089534268489139119991821301061611932421008906
Percentage of DerivativeInstrumentsGrossAmountOfRecognizedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lnc:DerivativeInstrumentsGrossAmountsOfRecognizedAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value56342619263619381350133095791111721301156016001532147031033793321422502812209529662537210919171848180521173547
Percentage of DerivativeInstrumentsGrossAmountsOfRecognizedAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lnc:ExposureAssociatedWithCollateralizationEvents



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value000000000045
Percentage of ExposureAssociatedWithCollateralizationEvents0.00.00.00.00.00.00.00.00.00.0100.0100.0

us-gaap:InvestmentType

lnc:FairValueOfPortfolioRatedBelowInvestmentGrade

us-gaap:CorporateBondSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value350033003100320032003000310032003300350033003400350037003300
Percentage of FairValueOfPortfolioRatedBelowInvestmentGrade100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueByMeasurementBasis

lnc:FutureContractBenefitsIndexedAnnuityContractsFairValueDisclosure

us-gaap:CarryingReportedAmountFairValueDisclosure



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value1380258520981973173013051571140013461418131812681238113911251102108811001043115511801170111711671048
Percentage of FutureContractBenefitsIndexedAnnuityContractsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EstimateOfFairValueFairValueDisclosure



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value1380258520981973173013051571140013461418131812681238113911251102108811001043115511801170111711671048
Percentage of FutureContractBenefitsIndexedAnnuityContractsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueByMeasurementBasis, us-gaap:InvestmentType

lnc:IndexedAnnuityCededEmbeddedDerivativesFairValueDisclosure

us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:OtherAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value799927891903872902442917113
Percentage of IndexedAnnuityCededEmbeddedDerivativesFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:OtherAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value799927891903872902442917113
Percentage of IndexedAnnuityCededEmbeddedDerivativesFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lnc:LongTermDebtAndFairValueHedges



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value6748606760705621557258395804582656484894490049015133534554575460565055825604552956275270518651705380532053655050488954395494571956065391534857295370539959435865506050504731
Percentage of LongTermDebtAndFairValueHedges100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueByMeasurementBasis

lnc:LongTermDebtFairValueDisclosure

us-gaap:CarryingReportedAmountFairValueDisclosure



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value6748606760705621557258395804582656484894490049015133534554575460565055825604552956275270518651705320
Percentage of LongTermDebtFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EstimateOfFairValueFairValueDisclosure



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value5770621760475626553456045795579657245042545554855573567953895211535055055647575460355707571157355762
Percentage of LongTermDebtFairValueDisclosure85.5102.599.6100.199.396.099.899.5101.3103.0111.3111.9108.6106.298.895.494.798.6100.8104.1107.3108.3110.1110.9108.3

lnc:MortgageLoansOnRealEstateUnamortizedPremiumDiscount



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value8654-3-9-17-17112223334444566677
Percentage of MortgageLoansOnRealEstateUnamortizedPremiumDiscount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivablePortfolioSegment

us-gaap:CommercialRealEstatePortfolioSegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value-16-17-18-17-16-17
Percentage of MortgageLoansOnRealEstateUnamortizedPremiumDiscount-200.0-283.3-360.0-425.0533.3188.9

us-gaap:ResidentialPortfolioSegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value24232321138
Percentage of MortgageLoansOnRealEstateUnamortizedPremiumDiscount300.0383.3460.0525.0-433.3-88.9

lnc:NumberOfPartnershipsInAlternativeInvestmentPortfolio



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value0000000000000000000000000000000097000970000
Percentage of NumberOfPartnershipsInAlternativeInvestmentPortfolio100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueByMeasurementBasis, us-gaap:FinancialInstrument, us-gaap:InvestmentType

lnc:OtherAssetsGuaranteedLivingBenefitsEmbeddedDerivativesReservesFairValueDisclosureAssets

us-gaap:CarryingReportedAmountFairValueDisclosure, lnc:GLBCededEmbeddedDerivatives, us-gaap:OtherAssets



Period End2020-03-312019-12-31
Value72860
Percentage of OtherAssetsGuaranteedLivingBenefitsEmbeddedDerivativesReservesFairValueDisclosureAssets100.0100.0

us-gaap:EstimateOfFairValueFairValueDisclosure, lnc:GLBCededEmbeddedDerivatives, us-gaap:OtherAssets



Period End2020-03-312019-12-31
Value72860
Percentage of OtherAssetsGuaranteedLivingBenefitsEmbeddedDerivativesReservesFairValueDisclosureAssets100.0100.0

us-gaap:FairValueByMeasurementBasis

lnc:OtherContractHolderFundsAccountValueOfCertainInvestmentContractsFairValueDisclosure

us-gaap:CarryingReportedAmountFairValueDisclosure



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value39744386393750836691357723453533684329623247232370320893198231832315163141331068307713039230214300742999029156295062949929078
Percentage of OtherContractHolderFundsAccountValueOfCertainInvestmentContractsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EstimateOfFairValueFairValueDisclosure



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value54761468224727644704387903635834577347853500736200362813620135540356473821837486358313461834226328383466633079318033158430574
Percentage of OtherContractHolderFundsAccountValueOfCertainInvestmentContractsFairValueDisclosure137.8121.2126.0121.8108.4105.3102.7105.5107.8111.8113.1113.2111.6113.1121.7120.7116.4113.9113.3109.2115.6113.5107.8107.1105.1

us-gaap:FairValueByMeasurementBasis

lnc:OtherContractHolderFundsRemainingGuaranteedInterestAndSimilarContractsFairValueDisclosure

us-gaap:CarryingReportedAmountFairValueDisclosure



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value18841900194719731948542562578580592612625629629641660678687697697687699741773809
Percentage of OtherContractHolderFundsRemainingGuaranteedInterestAndSimilarContractsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EstimateOfFairValueFairValueDisclosure



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value18841900194719731948542562578580592612625629629641660678687697697687699741773809
Percentage of OtherContractHolderFundsRemainingGuaranteedInterestAndSimilarContractsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueByMeasurementBasis, us-gaap:FinancialInstrument, us-gaap:InvestmentType

lnc:OtherLiabilitiesGuaranteedLivingBenefitsEmbeddedDerivativesReservesFairValueDisclosure

us-gaap:CarryingReportedAmountFairValueDisclosure, lnc:GLBDirectEmbeddedDerivatives, us-gaap:OtherLiabilities



Period End2020-03-312016-12-31
Value4596371
Percentage of OtherLiabilitiesGuaranteedLivingBenefitsEmbeddedDerivativesReservesFairValueDisclosure100.0100.0

us-gaap:EstimateOfFairValueFairValueDisclosure, lnc:GLBDirectEmbeddedDerivatives, us-gaap:OtherLiabilities



Period End2020-03-312016-12-31
Value4596371
Percentage of OtherLiabilitiesGuaranteedLivingBenefitsEmbeddedDerivativesReservesFairValueDisclosure100.0100.0

lnc:PercentOfPermanentLifeInsuranceInForce



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302015-12-31
Value0.370.370.370.370.370.350.350.350.350.350.340.340.340.350.350.35
Percentage of PercentOfPermanentLifeInsuranceInForce100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductOrService

lnc:PercentOfTotalVariableAnnuitySeparateAccountValues

us-gaap:VariableAnnuity



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value0.980.980.980.980.980.990.980.990.990.990.990.990.990.990.990.990.990.990.990.990.990.990.990.990.980.980.980.980.980.98
Percentage of PercentOfTotalVariableAnnuitySeparateAccountValues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrumentPerformanceStatus, us-gaap:FinancingReceivablePortfolioSegment

lnc:PercentageOfTotalMortgageLoans

us-gaap:NonperformingFinancingReceivable, us-gaap:ResidentialPortfolioSegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value0.0310.0230.0110.010.0050.0040.0
Percentage of PercentageOfTotalMortgageLoans100.0100.0100.0100.0100.0100.00.0

us-gaap:PerformingFinancingReceivable, us-gaap:ResidentialPortfolioSegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value0.9690.9770.9890.990.9950.9960.0
Percentage of PercentageOfTotalMortgageLoans3125.84247.88990.99900.019900.024900.00.0

us-gaap:FinancingReceivablePortfolioSegment

us-gaap:ResidentialPortfolioSegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value1.01.01.01.01.01.00.0
Percentage of PercentageOfTotalMortgageLoans3225.84347.89090.910000.020000.025000.00.0

us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanToValue

us-gaap:CommercialRealEstatePortfolioSegment, lnc:LoanToValueRatioSeventyFiveToOneHundred



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value0.00.00.00.00.0030.0040.01
Percentage of PercentageOfTotalMortgageLoans0.00.00.00.060.0100.00.0

us-gaap:LoanToValue

lnc:LoanToValueRatioLessThanSixtyFive



Period End2020-03-312019-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value0.9120.910.8990.9040.90.8960.890.8970.8870.880.889
Percentage of PercentageOfTotalMortgageLoans2941.93956.50.00.00.00.00.00.00.00.00.0

lnc:LoanToValueRatioSixtyFiveToSeventyFour



Period End2020-03-312019-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value0.0880.090.0950.0880.090.0930.0960.0890.0970.1020.075
Percentage of PercentageOfTotalMortgageLoans283.9391.30.00.00.00.00.00.00.00.00.0

lnc:ReinsuranceRelatedEmbeddedDerivatives



Period End2020-03-31
Value137
Percentage of ReinsuranceRelatedEmbeddedDerivatives100.0

us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure



Period End2020-03-31
Value137
Percentage of ReinsuranceRelatedEmbeddedDerivatives100.0

us-gaap:EstimateOfFairValueFairValueDisclosure



Period End2020-03-31
Value137
Percentage of ReinsuranceRelatedEmbeddedDerivatives100.0

lnc:RemainingLife11To30Years



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value3481831042296622735925874248952126220660194341694516441159031518815048134761364016074139111380211980130251257511414103791035410355980397539740989010167103042044596547774632558785829
Percentage of RemainingLife11To30Years100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentRisk

us-gaap:EquityContract



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value1113131313141414141515151517171717181818182021202021222121232524
Percentage of RemainingLife11To30Years0.00.00.00.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.20.10.20.20.20.20.20.20.20.20.20.20.2

us-gaap:ForeignExchangeContract



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value15071473152013451278116611301113116110909549626956866165144494082362102102101781521271271891391271550111
Percentage of RemainingLife11To30Years4.34.75.14.94.94.75.35.46.06.45.86.04.64.64.63.82.82.91.71.81.61.71.61.51.21.21.91.41.30.20.51.1

us-gaap:InterestRateContract



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value333002955628129260012458323715201181953318259158401547214926144781434512843131091560813485135481175212797123451121510207102071020795929593959298521009210169
Percentage of RemainingLife11To30Years95.695.294.895.095.095.394.694.594.093.594.193.995.395.395.396.197.196.998.298.198.298.298.398.398.698.697.898.498.599.699.398.7

lnc:RemainingLife1To5Years



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value629106144124392155461518922321186732364122500309443101732367341613502434617426544142639696396044111345414371913630135773359892718327797250852505925188244401558198581477814196115906265634756355678
Percentage of RemainingLife1To5Years100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentRisk

us-gaap:EquityContract



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value1431479926529526051985225361588648618969210037978488329369874288257880679665535705530359125072453942213573379838974049400738633305
Percentage of RemainingLife1To5Years22.813.026.833.834.223.419.437.538.331.332.430.225.926.825.320.719.017.116.513.911.715.914.012.711.713.113.715.516.215.915.821.2

us-gaap:ForeignExchangeContract



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value370383318255264268256260290247212151151109120120120138138168126126156141110110137150180205179179
Percentage of RemainingLife1To5Years0.60.61.31.61.71.21.41.11.30.80.70.50.40.30.30.30.30.30.30.40.30.30.40.40.30.40.50.60.70.80.71.1

us-gaap:InterestRateContract



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value482265301117545100319727168281480214517135922095320768223692517825530257553370933426327043281035137398593102730947309673153223374237362089020682208282020311942
Percentage of RemainingLife1To5Years76.786.371.964.564.075.479.361.460.467.767.069.173.772.974.479.080.782.482.885.587.883.485.386.687.686.085.483.382.582.782.776.6

lnc:RemainingLife6To10Years



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value3055225671586055676554468516774794347201467513228632148314213142425382236612223525885216411609815030158981639116618167471687716346156461825818341112661197520489150501608316305109081525814527
Percentage of RemainingLife6To10Years100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentRisk

us-gaap:CreditRiskContract



Period End2020-03-312019-03-312017-03-312016-09-302012-12-312012-09-302012-06-30
Value39460566000
Percentage of RemainingLife6To10Years1.30.10.20.00.00.00.0

us-gaap:EquityContract



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value43433762344828791996123611539038548581986916451872187219722097275333163766433844395345534253425344511952225224516554775881
Percentage of RemainingLife6To10Years14.214.75.95.13.72.40.20.80.81.52.52.85.27.47.98.98.112.720.625.127.327.132.231.931.732.732.728.628.545.845.728.7

us-gaap:ForeignExchangeContract



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value1013961863831764728635601426423391378355346277327327334283234276276250275305305243243200200191130
Percentage of RemainingLife6To10Years3.33.71.51.51.41.41.31.30.91.31.21.21.11.41.21.51.31.51.81.61.71.71.51.61.81.91.61.31.11.81.60.6

us-gaap:InterestRateContract



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value24802209485429453055516484971347193462104594031378309383017429368231642150619936234611855412499110301128411676110231113011230106971028412793129175901630714478
Percentage of RemainingLife6To10Years81.281.692.693.594.896.298.497.998.397.296.296.093.591.390.989.790.685.777.673.471.071.266.366.566.565.465.770.170.452.452.770.7

lnc:RemainingLifeLessThan1Year



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value46057391533793036697339713394629151323254442326766265893263729366271262949925008306742860527310218901703116466145301630115225164951514214220141361355013205136031123510836975770486215771985009873
Percentage of RemainingLifeLessThan1Year100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentRisk

us-gaap:EquityContract



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value30822275942697624730224402087618103188131892318746176521759417297159241855619346197661804816731144631451313799120821160710894109771048510205107071066899179978
Percentage of RemainingLifeLessThan1Year66.970.571.167.466.161.562.158.242.670.066.453.958.958.762.977.464.463.161.366.185.283.883.271.271.666.569.271.875.778.775.173.4

us-gaap:ForeignExchangeContract



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value146218290304661021411651142236193750229329120104289173389810843991751354825548138196
Percentage of RemainingLifeLessThan1Year0.30.60.80.80.20.30.50.50.30.10.10.10.10.20.81.30.40.41.10.80.20.60.70.30.71.10.90.31.80.41.01.4

us-gaap:InterestRateContract



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value150891134110664116631146512968109071334725386799889011502412032111021062952301068510408102907254248025692340465142325343452239673174283431103389
Percentage of RemainingLifeLessThan1Year32.829.028.131.833.738.237.441.357.129.933.546.041.040.936.020.934.836.437.733.114.615.616.128.527.832.429.927.922.520.923.624.9

lnc:RemainingLifeOver30Years



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value816760085020492049424658434342043887340926602665248723461663192814971480154414651405135312151215121512151215121512141216121612161099915168030
Percentage of RemainingLifeOver30Years100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentRisk

us-gaap:EquityContract



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value629441943251313931483136312029682664215214361442127411334502902842672612521921402222221333
Percentage of RemainingLifeOver30Years77.169.864.863.863.767.371.870.668.563.154.054.151.248.327.115.019.018.016.917.213.710.30.20.20.20.20.20.20.10.20.20.2

us-gaap:ForeignExchangeContract



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302012-12-312012-09-302012-06-30
Value42101566881109102310441110000
Percentage of RemainingLifeOver30Years0.51.71.11.41.62.30.20.50.31.30.40.40.00.00.0

us-gaap:InterestRateContract



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value18311713171317131713141312131213121312131213121312131213121316381213121312831213121312131213121312131213121312131213121312131213
Percentage of RemainingLifeOver30Years22.428.534.134.834.730.327.928.931.235.645.645.548.851.772.985.081.082.083.182.886.389.799.899.899.899.899.899.899.999.899.899.8

us-gaap:CededCreditRisk

lnc:ReservesAssociatedWithModifiedCoinsurance

lnc:AtheneHoldingLtd.



Period End2020-03-312019-12-31
Value62006900
Percentage of ReservesAssociatedWithModifiedCoinsurance100.0100.0

us-gaap:CededCreditRisk, us-gaap:CededCreditRiskCollateralization

lnc:AtheneHoldingLtd., us-gaap:CededCreditRiskSecured



Period End2020-03-312019-12-31
Value175201
Percentage of ReservesAssociatedWithModifiedCoinsurance2.82.9

lnc:SecuritiesPledgedForFederalHomeLoanBankOfIndianapolisCarryingValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value43303580358041804380393035803180290029003300315035003350225023552105235521052250217519252175217520001850185023401600110011001100100100600100100100100100100
Percentage of SecuritiesPledgedForFederalHomeLoanBankOfIndianapolisCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lnc:SecuritiesPledgedForFederalHomeLoanBankOfIndianapolisFairValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value697054805469631465705923541347124206423549734654520549473615376729783391301430673156315135353576332431273080377727641936187020131531421037126115110109112111
Percentage of SecuritiesPledgedForFederalHomeLoanBankOfIndianapolisFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lnc:SecuritiesPledgedUnderSecuritiesLendingAgreementsCarryingValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value16111410715613688117142154222200208127216239249246242229232204204197199157184180177199197196200200200198200200199200188501
Percentage of SecuritiesPledgedUnderSecuritiesLendingAgreementsCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetsSoldUnderAgreementsToRepurchaseMaturityPeriods

us-gaap:MaturityOvernight



Period End2020-03-312019-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value161114117142154222200208127216239249246242229232
Percentage of SecuritiesPledgedUnderSecuritiesLendingAgreementsCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetsSoldUnderAgreementsToRepurchaseMaturityPeriods, us-gaap:FinancialInstrument

us-gaap:MaturityOvernight, us-gaap:CorporateBondSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value16011410715613688117142154222200208127212239249246242227224
Percentage of SecuritiesPledgedUnderSecuritiesLendingAgreementsCarryingValue99.4100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.098.1100.0100.0100.0100.099.196.6

us-gaap:MaturityOvernight, us-gaap:ForeignGovernmentDebtSecurities



Period End2020-03-312016-12-312015-09-302015-06-30
Value1425
Percentage of SecuritiesPledgedUnderSecuritiesLendingAgreementsCarryingValue0.61.90.92.2

us-gaap:FinancialInstrument

us-gaap:CorporateBondSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value16011410715613688117142154222200208127212239249246242227224
Percentage of SecuritiesPledgedUnderSecuritiesLendingAgreementsCarryingValue99.4100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.098.1100.0100.0100.0100.099.196.6

us-gaap:ForeignGovernmentDebtSecurities



Period End2020-03-312016-12-312015-09-302015-06-30
Value1425
Percentage of SecuritiesPledgedUnderSecuritiesLendingAgreementsCarryingValue0.61.90.92.2

lnc:SecuritiesPledgedUnderSecuritiesLendingAgreementsFairValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value15611010315213185113138149213192200123209230240237231221222193196191192151178173171192189190194192193191192192192191180479
Percentage of SecuritiesPledgedUnderSecuritiesLendingAgreementsFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueByMeasurementBasis

lnc:SeparateAccountAssetsFairValueDisclosure

us-gaap:CarryingReportedAmountFairValueDisclosure



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value130617153566145092146275143369132833147692144231142761144219139612135825132958128397128593125033123506123619120275128079127828125265122937124159117135
Percentage of SeparateAccountAssetsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EstimateOfFairValueFairValueDisclosure



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value130617153566145092146275143369132833147692144231142761144219139612135825132958128397128593125033123506123619120275128079127828125265122937124159117135
Percentage of SeparateAccountAssetsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lnc:TotalPayablesForCollateralOnInvestmentFairValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value11069697874497795758368306077629556235801669164956839663970757759593657486273547260725686521749884867454548125038
Percentage of TotalPayablesForCollateralOnInvestmentFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument, us-gaap:HedgingDesignation

lnc:ViesDerivativeAssetNotionalAmount

us-gaap:TotalReturnSwap, us-gaap:Nondesignated



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value596613606596587600587574573
Percentage of ViesDerivativeAssetNotionalAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccruedInvestmentIncomeReceivable



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value1185114811821146118411191168111911371078113710821124106211171070110810701116106411291049112910811116102911111052107810151067102110269811023994989933989945940889814
Percentage of AccruedInvestmentIncomeReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CededCreditRisk

lnc:AtheneHoldingLtd.



Period End2020-03-31
Value48
Percentage of AccruedInvestmentIncomeReceivable4.1

us-gaap:AssetsFairValueDisclosure



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value251606270478260798257319249473233897246814243199241513245265239770235024230091224673231399227910221516217146215603221241226425221209215893217371209870205859197224190865192836187710
Percentage of AssetsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument, us-gaap:InvestmentType

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax

lnc:HybridAndRedeemablePreferredSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-31
Value5182
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax100.0100.0

us-gaap:AssetBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-31
Value5962
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax115.775.6

us-gaap:CommercialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-31
Value3945
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax76.554.9

us-gaap:CorporateBondSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-31
Value70319479
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax13786.311559.8

us-gaap:ForeignGovernmentDebtSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-31
Value6364
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax123.578.0

us-gaap:ResidentialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-31
Value277190
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax543.1231.7

us-gaap:USGovernmentDebtSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-31
Value10251
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax200.062.2

us-gaap:USStatesAndPoliticalSubdivisions, us-gaap:FixedMaturities



Period End2020-03-312019-12-31
Value11231113
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax2202.01357.3

us-gaap:InvestmentType

us-gaap:FixedMaturities



Period End2020-03-312019-12-31
Value874511086
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax17147.113519.5

us-gaap:FinancialInstrument, us-gaap:InvestmentType

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax

lnc:HybridAndRedeemablePreferredSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-31
Value5920
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax100.0100.0

us-gaap:AssetBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-31
Value23218
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax393.290.0

us-gaap:CommercialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-31
Value91
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax15.35.0

us-gaap:CorporateBondSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-31
Value1999184
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax3388.1920.0

us-gaap:ForeignGovernmentDebtSecurities, us-gaap:FixedMaturities



Period End2020-03-31
Value3
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax5.1

us-gaap:ResidentialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-31
Value2010
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax33.950.0

us-gaap:USStatesAndPoliticalSubdivisions, us-gaap:FixedMaturities



Period End2020-03-312019-12-31
Value147
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax23.735.0

us-gaap:InvestmentType

us-gaap:FixedMaturities



Period End2020-03-312019-12-31
Value2336240
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax3959.31200.0

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value962179429592192911909289492429908089008387267869938659386194858348428783713830338262381993808998045678609
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument, us-gaap:InvestmentType

lnc:FixedMaturityAfsSecuritiesOtherThanStructuredSecurities, us-gaap:FixedMaturities



Period End2020-03-31
Value86855
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis90.3

lnc:HybridAndRedeemablePreferredSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-31
Value564497
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis0.60.5

lnc:StructuredSecurities, us-gaap:FixedMaturities



Period End2020-03-31
Value9362
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis9.7

us-gaap:AssetBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-31
Value52594810
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis5.55.1

us-gaap:CommercialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-31
Value10891038
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis1.11.1

us-gaap:CorporateBondSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-31
Value8078579417
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis84.084.2

us-gaap:ResidentialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-31
Value30143042
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis3.13.2

us-gaap:USGovernmentDebtSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-31
Value380384
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis0.40.4

us-gaap:USStatesAndPoliticalSubdivisions, us-gaap:FixedMaturities



Period End2020-03-312019-12-31
Value47974778
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis5.05.1

us-gaap:InvestmentType

us-gaap:FixedMaturities



Period End2020-03-312019-12-31
Value9621794295
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis100.0100.0

us-gaap:FairValueConcentrationOfRiskDisclosureItems

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss

lnc:FairValueDeclineGreaterThanTwentyPercent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value6076959352745047637884110167
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument, us-gaap:InvestmentType

lnc:HybridAndRedeemablePreferredSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value3719242422282222
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss61.725.025.325.842.337.844.028.2

us-gaap:AssetBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value361091013141215
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss60.013.29.510.825.018.924.019.2

us-gaap:CorporateBondSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value254141190309692735538288
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss423.3185.5200.0332.31330.8993.21076.0369.2

us-gaap:ResidentialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value111142607336
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss1.71.111.880.881.1146.046.2

us-gaap:InvestmentType

us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302018-12-312017-12-31
Value328170224362856371
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss546.7223.7235.8389.21156.8475.6

us-gaap:FairValueConcentrationOfRiskDisclosureItems

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss

lnc:FairValueDeclineGreaterThanTwentyPercent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value86384121125108255129126104144119151220
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument, us-gaap:InvestmentType

lnc:HybridAndRedeemablePreferredSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value5920242524342422
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss6.823.819.820.022.213.318.615.3

us-gaap:AssetBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value23218121014161516
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss26.921.49.98.013.06.311.611.1

us-gaap:CommercialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-03-312018-12-312018-09-302017-12-31
Value91316233
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss1.01.22.86.317.82.1

us-gaap:CorporateBondSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value199918722935185622651726356
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss231.6222.6189.3280.8792.6888.21338.0247.2

us-gaap:ForeignGovernmentDebtSecurities, us-gaap:FixedMaturities



Period End2020-03-31
Value3
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss0.3

us-gaap:ResidentialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value2010211437011640
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss2.311.91.78.839.827.589.927.8

us-gaap:USStatesAndPoliticalSubdivisions, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value14724818266
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss1.68.31.73.27.47.120.24.2

us-gaap:InvestmentType

us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302018-12-312017-12-31
Value23362432694082445446
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss270.7289.3222.3326.4958.8309.7

us-gaap:FairValueConcentrationOfRiskDisclosureItems

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue

lnc:FairValueDeclineGreaterThanTwentyPercent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value1578157228307293645314336301388319360539
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument, us-gaap:InvestmentType

lnc:HybridAndRedeemablePreferredSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value256131113181163229163146
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue16.283.449.659.055.635.551.937.6

us-gaap:AssetBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value441520951124122250260381213
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue279.81334.4493.039.785.340.3121.354.9

us-gaap:CommercialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-03-312018-12-312018-09-302017-12-31
Value25252307552681173
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue16.033.1104.885.6216.944.6

us-gaap:CorporateBondSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value224764341347873561932339721378869747
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue1424.32765.01525.42396.16594.96158.312065.62512.1

us-gaap:ForeignGovernmentDebtSecurities, us-gaap:FixedMaturities



Period End2020-03-31
Value27
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue1.7

us-gaap:ResidentialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value35755125749199713351439943
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue22.6351.0112.7159.9340.3207.0458.3243.0

us-gaap:USStatesAndPoliticalSubdivisions, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value364351142197291500799127
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue23.1223.662.364.299.377.5254.532.7

us-gaap:InvestmentType

us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302018-12-312017-12-31
Value281477521511490324391711877
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue1783.74790.42243.02942.06808.83061.1

us-gaap:FinancialInstrument, us-gaap:InvestmentType

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss

lnc:HybridAndRedeemablePreferredSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-06-302019-03-312018-12-312018-09-30
Value2211262
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss100.0100.0100.0100.0100.0100.0

us-gaap:AssetBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302017-12-31
Value196831231
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss890.9800.00.050.033.3150.00.0

us-gaap:CommercialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312018-12-312018-09-30
Value911118
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss40.9100.0183.3900.0

us-gaap:CorporateBondSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value17454639421641530118868
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss7931.84600.00.04200.08200.025500.059400.00.0

us-gaap:ForeignGovernmentDebtSecurities, us-gaap:FixedMaturities



Period End2020-03-31
Value3
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss13.6

us-gaap:ResidentialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302017-12-31
Value19101110434
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss86.41000.00.050.0166.72150.00.0

us-gaap:USStatesAndPoliticalSubdivisions, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value147211815
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss63.6700.00.0100.050.0133.3750.0

us-gaap:InvestmentType

us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302018-12-312017-12-31
Value2008734546158975
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss9127.37300.00.04600.026483.30.0

us-gaap:FinancialInstrument, us-gaap:InvestmentType

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue

lnc:HybridAndRedeemablePreferredSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-06-302019-03-312018-12-312018-09-302017-12-31
Value178297212963120
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value41601792846367411725262
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue2337.16179.30.050.0616.7121.9812.9310.0

us-gaap:CommercialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-03-312018-12-312018-09-302017-12-31
Value2504810470624113
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue140.4165.583.3489.62012.9565.0

us-gaap:CorporateBondSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value21648293517431188483132493331964854
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue12161.810120.70.01650.040258.333846.9107083.924270.0

us-gaap:ForeignGovernmentDebtSecurities, us-gaap:FixedMaturities



Period End2020-03-31
Value27
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue15.2

us-gaap:ResidentialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value3525362381155472836302
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue197.81848.30.015.3458.3491.72696.81510.0

us-gaap:USStatesAndPoliticalSubdivisions, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value36433313811515640472434
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue204.51148.30.0159.71300.0420.82335.5170.0

us-gaap:InvestmentType

us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302018-12-312017-12-31
Value26979567329651903352465822
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue15156.719562.10.02643.136714.629110.0

us-gaap:FairValueConcentrationOfRiskDisclosureItems

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue

lnc:FairValueDeclineGreaterThanTwentyPercent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value50132167214152143123117182215229253364
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument, us-gaap:InvestmentType

lnc:HybridAndRedeemablePreferredSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value78102113109151133132126
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue156.077.367.750.999.393.0107.358.6

us-gaap:AssetBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value25530327886176143129151
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue510.0229.5166.540.2115.8100.0104.970.2

us-gaap:CommercialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-03-312018-12-312018-09-302017-12-31
Value24297825760
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue4.03.0195.457.346.327.9

us-gaap:CorporateBondSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value82814061735616814492722846904893
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue1656.01065.21038.92882.29534.25054.53813.02275.8

us-gaap:ResidentialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value51519480942863603641
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue10.011.411.4224.3619.7603.5490.2298.1

us-gaap:InvestmentType

us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302018-12-312017-12-31
Value116818482149712986716055
Percentage of AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue2336.01400.01286.83331.36063.62816.3

us-gaap:AvailableForSaleSecuritiesDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value10260610520010365999733980509402493161930609205994840937679301491102890139263291461880648496485506854228881386240853488551182988800788013580235827118203681179791917625475433745917092069231680306971666391628816081848141
Percentage of AvailableForSaleSecuritiesDebtSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CededCreditRisk

lnc:AtheneHoldingLtd.



Period End2020-03-31
Value1800
Percentage of AvailableForSaleSecuritiesDebtSecurities1.8

us-gaap:FairValueByMeasurementBasis, us-gaap:FinancialInstrument

us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value10260610520010365999733980509402493161930609205994840937679301491102890139263291461880648496485506854228881386240853488551180078
Percentage of AvailableForSaleSecuritiesDebtSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value10260610520010365999733980509402493161930609205994840937679301491102890139263291461880648496485506854228881386240853488551180078
Percentage of AvailableForSaleSecuritiesDebtSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument, us-gaap:InvestmentType

lnc:FixedMaturityAfsSecuritiesOtherThanStructuredSecurities, us-gaap:FixedMaturities



Period End2020-03-31
Value93130
Percentage of AvailableForSaleSecuritiesDebtSecurities90.8

lnc:HybridAndRedeemablePreferredSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-31
Value556559
Percentage of AvailableForSaleSecuritiesDebtSecurities0.50.5

lnc:StructuredSecurities, us-gaap:FixedMaturities



Period End2020-03-31
Value9476
Percentage of AvailableForSaleSecuritiesDebtSecurities9.2

us-gaap:AssetBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-31
Value50864889
Percentage of AvailableForSaleSecuritiesDebtSecurities5.04.6

us-gaap:CommercialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-31
Value11191083
Percentage of AvailableForSaleSecuritiesDebtSecurities1.11.0

us-gaap:CorporateBondSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-31
Value8579788716
Percentage of AvailableForSaleSecuritiesDebtSecurities83.684.3

us-gaap:ForeignGovernmentDebtSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-31
Value389393
Percentage of AvailableForSaleSecuritiesDebtSecurities0.40.4

us-gaap:ResidentialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-31
Value32713241
Percentage of AvailableForSaleSecuritiesDebtSecurities3.23.1

us-gaap:USGovernmentDebtSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-31
Value482435
Percentage of AvailableForSaleSecuritiesDebtSecurities0.50.4

us-gaap:USStatesAndPoliticalSubdivisions, us-gaap:FixedMaturities



Period End2020-03-312019-12-31
Value59065884
Percentage of AvailableForSaleSecuritiesDebtSecurities5.85.6

us-gaap:InvestmentType

us-gaap:FixedMaturities



Period End2020-03-312019-12-31
Value102606105200
Percentage of AvailableForSaleSecuritiesDebtSecurities100.0100.0

us-gaap:FairValueConcentrationOfRiskDisclosureItems

us-gaap:AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions1

lnc:FairValueDeclineGreaterThanTwentyPercent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value208.042.051.057.053.090.056.058.055.086.077.080.083.0
Percentage of AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentType

us-gaap:FixedMaturities



Period End2020-03-31
Value2724.0
Percentage of AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions11309.6

us-gaap:FairValueConcentrationOfRiskDisclosureItems

us-gaap:AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsGreaterThanOrEqualToOneYear

lnc:FairValueDeclineGreaterThanTwentyPercent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value23.031.035.035.032.032.029.028.030.049.050.051.062.0
Percentage of AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsGreaterThanOrEqualToOneYear100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueByMeasurementBasis

us-gaap:CashAndCashEquivalentsFairValueDisclosure

us-gaap:CarryingReportedAmountFairValueDisclosure



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value6202256329393314159323451460177522571628196519781923272234444113317731463772232734873919182115092364
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EstimateOfFairValueFairValueDisclosure



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value6202256329393314159323451460177522571628196519781923272234444113317731463772232734873919182115092364
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonStockValueOutstanding



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value5071516251925241528553925619567457005693571757745839586959096009616262986380646964936622669667396805687668866937704371217214731074487590779279388064812481428188784578407035
Percentage of CommonStockValueOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CreditDerivativesByContractType

us-gaap:CreditDerivativeMaximumExposureUndiscounted

us-gaap:CreditDefaultSwapSellingProtection



Period End2020-03-312019-12-312019-03-312017-12-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value39455555263564085103103103103103126126
Percentage of CreditDerivativeMaximumExposureUndiscounted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CreditRatingStandardPoors, us-gaap:CreditDerivativesByContractType

srt:StandardPoorsBBBPlusRating, us-gaap:CreditDefaultSwapSellingProtection



Period End2020-03-312019-12-31
Value39455
Percentage of CreditDerivativeMaximumExposureUndiscounted100.0100.0

us-gaap:CreditRatingStandardPoors, us-gaap:CreditDerivativesByContractType

us-gaap:CreditRiskDerivativesAtFairValueNet

srt:StandardPoorsBBBPlusRating, us-gaap:CreditDefaultSwapSellingProtection



Period End2020-03-312019-12-31
Value2-1
Percentage of CreditRiskDerivativesAtFairValueNet100.0100.0

us-gaap:DebtLongtermAndShorttermCombinedAmount



Period End2020-03-312019-12-31
Value67486367
Percentage of DebtLongtermAndShorttermCombinedAmount100.0100.0

us-gaap:DebtSecuritiesAvailableForSaleAllowanceForCreditLoss



Period End2020-03-312019-12-31
Value200
Percentage of DebtSecuritiesAvailableForSaleAllowanceForCreditLoss100.00.0

us-gaap:FinancialInstrument

us-gaap:CorporateBondSecurities



Period End2020-03-31
Value20
Percentage of DebtSecuritiesAvailableForSaleAllowanceForCreditLoss100.0

us-gaap:FinancialInstrument, us-gaap:InvestmentType

us-gaap:CorporateBondSecurities, us-gaap:FixedMaturities



Period End2020-03-31
Value-20
Percentage of DebtSecuritiesAvailableForSaleAllowanceForCreditLoss-100.0

us-gaap:InvestmentType

us-gaap:FixedMaturities



Period End2020-03-31
Value-20
Percentage of DebtSecuritiesAvailableForSaleAllowanceForCreditLoss-100.0

us-gaap:DeferredPolicyAcquisitionCostsAndValueOfBusinessAcquired



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-312011-12-312010-12-31
Value92127694749285889441102641001499049289840385438555903091348020828089849510886691508156820783728149845488868500666767767414
Percentage of DeferredPolicyAcquisitionCostsAndValueOfBusinessAcquired100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CededCreditRisk

us-gaap:DepositAssets

lnc:AtheneHoldingLtd.



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value63006600720076007500
Percentage of DepositAssets100.0100.0100.0100.0100.0

us-gaap:DepositsReceivedForSecuritiesLoanedAtCarryingValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value84345082552856325362480542124699426544174968495250864995565462975017465752974587504644093853357135193238355342524107418145665070287537333855180515541659256723761907
Percentage of DepositsReceivedForSecuritiesLoanedAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeAssetFairValueGrossLiability



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value1217708435428369223251327345386600546541543933118011297137927558716776707758049241003807754895
Percentage of DerivativeAssetFairValueGrossLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Range, us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType, us-gaap:MeasurementInputType, us-gaap:ValuationTechnique

us-gaap:DerivativeAssetMeasurementInput

srt:Maximum, lnc:GLBCededEmbeddedDerivatives, us-gaap:FairValueInputsLevel3, us-gaap:OtherAssets, us-gaap:MeasurementInputPriceVolatility, us-gaap:IncomeApproachValuationTechnique



Period End2020-03-312019-09-30
Value0.280.29
Percentage of DerivativeAssetMeasurementInput100.0100.0

srt:Minimum, lnc:GLBCededEmbeddedDerivatives, us-gaap:FairValueInputsLevel3, us-gaap:OtherAssets, us-gaap:MeasurementInputCreditSpread, us-gaap:IncomeApproachValuationTechnique



Period End2020-03-312019-09-30
Value0.00030.0002
Percentage of DerivativeAssetMeasurementInput0.10.1

srt:WeightedAverage, lnc:GLBCededEmbeddedDerivatives, us-gaap:FairValueInputsLevel3, us-gaap:OtherAssets, us-gaap:MeasurementInputCreditSpread, us-gaap:IncomeApproachValuationTechnique



Period End2020-03-31
Value0.0027
Percentage of DerivativeAssetMeasurementInput1.0

srt:WeightedAverage, lnc:GLBCededEmbeddedDerivatives, us-gaap:FairValueInputsLevel3, us-gaap:OtherAssets, us-gaap:MeasurementInputPriceVolatility, us-gaap:IncomeApproachValuationTechnique



Period End2020-03-31
Value0.1372
Percentage of DerivativeAssetMeasurementInput49.0

srt:WeightedAverage, lnc:GLBCededEmbeddedDerivatives, us-gaap:FairValueInputsLevel3, us-gaap:OtherAssets, us-gaap:MeasurementInputWithdrawalRate, us-gaap:IncomeApproachValuationTechnique



Period End2020-03-31
Value0.94
Percentage of DerivativeAssetMeasurementInput335.7

us-gaap:Range, us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:MeasurementInputType, us-gaap:ValuationTechnique

srt:Maximum, lnc:IndexedAnnuityContracts, us-gaap:FairValueInputsLevel3, us-gaap:MeasurementInputLapseRate, us-gaap:IncomeApproachValuationTechnique



Period End2020-03-312019-12-312018-12-31
Value0.090.099.0
Percentage of DerivativeAssetMeasurementInput32.10.00.0

srt:Minimum, lnc:IndexedAnnuityContracts, us-gaap:FairValueInputsLevel3, us-gaap:MeasurementInputLapseRate, us-gaap:IncomeApproachValuationTechnique



Period End2020-03-312019-12-312018-12-31
Value0.010.011.0
Percentage of DerivativeAssetMeasurementInput3.60.00.0

us-gaap:DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowed



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value608133483333252423422204243319021999188015861352121792721702613208515372020159420951860203120742125
Percentage of DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowed100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedAmountOffsetAgainstCollateral



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value198817191464125215321510198713571238111565129829533-211-391-74150-175314432675510111502
Percentage of DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedAmountOffsetAgainstCollateral100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedCollateralObligationToReturnCash



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value394213871686113969463636646768176593510549228942381300421591387203710632051153412761063623
Percentage of DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedCollateralObligationToReturnCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedCollateralObligationToReturnSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value15124218313311658
Percentage of DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedCollateralObligationToReturnSecurities100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedGross



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value7298405637682952271124272684222923442266218618981758147031033793321422502812234929662537270128493049
Percentage of DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedLiability



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value121770843542836922325132734538660054654154393311801129713792755871677670775924
Percentage of DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value44171911220115109811107706584827915960105499192721702613208515372020134020951860143911421044881111416832268265230723399224431513029109794610761904198999210103397
Percentage of DerivativeAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CededCreditRisk

lnc:AtheneHoldingLtd.



Period End2020-03-31
Value49
Percentage of DerivativeAssets1.1

us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value4417191122011510981110770658482791596010549919272170261320851537202013402095186014391142881
Percentage of DerivativeAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EstimateOfFairValueFairValueDisclosure



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value4417191122011510981110770658482791596010549919272170261320851537202013402095186014391142881
Percentage of DerivativeAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeCollateralObligationToReturnCash



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value3942138716861139694636366467681765935105492289423813004215913872037106320511534127610638776231006157421912624
Percentage of DerivativeCollateralObligationToReturnCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CreditRatingStandardPoors

srt:StandardPoorsAAMinusRating



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value5214413793065633116
Percentage of DerivativeCollateralObligationToReturnCash13.231.822.526.98.15.215.2

srt:StandardPoorsAMinusRating



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value71235526182444237
Percentage of DerivativeCollateralObligationToReturnCash18.125.61.51.635.20.631.0

srt:StandardPoorsAPlusRating



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value2674555760466389296242
Percentage of DerivativeCollateralObligationToReturnCash67.840.045.140.956.146.531.6

srt:StandardPoorsARating



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value353647125106170
Percentage of DerivativeCollateralObligationToReturnCash0.92.62.81.10.716.722.2

us-gaap:DerivativeCollateralObligationToReturnSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value15124218313311658
Percentage of DerivativeCollateralObligationToReturnSecurities100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeCollateralRightToReclaimCash



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value1489557817461285155581
Percentage of DerivativeCollateralRightToReclaimCash100.0100.0100.0100.0100.0100.0100.0

us-gaap:CreditRatingStandardPoors

srt:StandardPoorsAAMinusRating



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value599167309186331
Percentage of DerivativeCollateralRightToReclaimCash40.230.037.840.31.11.90.2

srt:StandardPoorsAMinusRating



Period End2020-03-312019-12-312019-03-312017-12-31
Value3975113
Percentage of DerivativeCollateralRightToReclaimCash26.79.20.40.5

srt:StandardPoorsAPlusRating



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value49333942121228196453
Percentage of DerivativeCollateralRightToReclaimCash33.160.951.546.098.661.978.0

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

us-gaap:DerivativeFairValueOfDerivativeAsset

lnc:DerivativeInvestments, us-gaap:ForeignExchangeContract, us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-31
Value6061913202261531671049347799911613115314014490847962714536333432324039
Percentage of DerivativeFairValueOfDerivativeAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lnc:DerivativeInvestments, us-gaap:InterestRateContract, us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-31
Value334108197127647012185494637473968206259215192244337377408499513534562573535462
Percentage of DerivativeFairValueOfDerivativeAsset55.156.561.656.241.841.9116.391.4104.358.237.440.529.844.4147.1179.9238.9228.6308.9543.5531.0906.71386.11554.51570.61756.21790.61337.51184.6

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

lnc:DerivativeInvestments, us-gaap:EquityContract, us-gaap:Nondesignated



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-31
Value28191442976774613676534521656562534529526541567661626680941799835886921815860957105213681734
Percentage of DerivativeFairValueOfDerivativeAsset465.2755.0305.0342.5400.7404.8513.5560.21395.7711.4539.4456.0401.5353.6405.0459.0695.6809.51191.11288.71176.11968.92558.32469.72529.42990.63287.53420.04446.2

lnc:DerivativeInvestments, us-gaap:ForeignExchangeContract, us-gaap:Nondesignated



Period End2020-03-312019-12-312019-09-30
Value1114
Percentage of DerivativeFairValueOfDerivativeAsset1.80.51.2

lnc:DerivativeInvestments, us-gaap:InterestRateContract, us-gaap:Nondesignated



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-31
Value1890108213308835884643183934986577527666959852092243621791088129571414569895194933672153404031042
Percentage of DerivativeFairValueOfDerivativeAsset311.9566.5415.6390.7384.3277.8305.8422.61059.6831.6759.6660.3530.5643.81494.31691.72421.11295.21639.21151.62050.72197.81441.71493.91079.4671.91062.51007.52671.8

lnc:FutureContractBenefits, lnc:IndexedAnnuityContracts, us-gaap:Nondesignated



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value799927891903872902442917113
Percentage of DerivativeFairValueOfDerivativeAsset131.8485.3278.4399.6569.9540.142.331.236.213.93.0

lnc:ReinsuranceRelatedEmbeddedDerivatives, lnc:ReinsuranceRelated, us-gaap:Nondesignated



Period End2020-03-31
Value137
Percentage of DerivativeFairValueOfDerivativeAsset22.6

us-gaap:OtherLiabilities, lnc:GLBCededEmbeddedDerivatives, us-gaap:Nondesignated



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value72860241111507235414551
Percentage of DerivativeFairValueOfDerivativeAsset120.131.475.349.132.743.133.744.195.764.6

us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation

lnc:DerivativeInvestments, us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-31
Value94029951735321723722517896125136163170221346403305276323399448453535546568594605575501
Percentage of DerivativeFairValueOfDerivativeAsset155.1156.5161.6156.2141.8141.9216.3191.4204.3158.2137.4140.5129.8144.4247.1279.9338.9328.6408.9643.5631.01006.71486.11654.51670.61856.21890.61437.51284.6

us-gaap:DerivativeInstrumentRisk

lnc:TotalDerivativeInstruments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value73244384411931392859252928342456262225632309201918632005342539233475231328512383305425872742294529463102
Percentage of DerivativeFairValueOfDerivativeAsset1208.62295.31287.21388.91868.61514.42725.02640.95578.73244.32332.31740.51422.11310.52446.42724.33861.12753.63608.93843.54301.45748.97616.78924.28664.79693.8

us-gaap:DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value441719112201151098111077065848279159601054991927217026132085153720201340209518601439114210448811114168322682652
Percentage of DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value3242823322381714132603966150256933-211-391-74150-1727744326163791672581081097728
Percentage of DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:DerivativeFairValueOfDerivativeLiability

lnc:DerivativeInvestments, us-gaap:ForeignExchangeContract, us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value13513238363971731397946211010126142516721325450464126
Percentage of DerivativeFairValueOfDerivativeLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

lnc:DerivativeInvestments, us-gaap:InterestRateContract, us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value8532454021845194221378497928012237735021046593884198151145138148150224
Percentage of DerivativeFairValueOfDerivativeLiability6561.5480.41256.2484.2141.723.159.228.826.6106.3210.9438.1800.01220.03141.75833.31500.02300.01180.0237.51200.0942.9471.9268.5276.0321.7365.9861.5

lnc:DerivativeInvestments, us-gaap:InterestRateContract, us-gaap:FairValueHedging, us-gaap:DesignatedAsHedgingInstrument



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-03-312013-12-312013-09-30
Value33720324419616313711212814217418018217418227928425119821417023093315
Percentage of DerivativeFairValueOfDerivativeLiability2592.3398.0762.5515.8452.8351.3157.7175.3102.2220.3391.3866.71740.01820.02325.04733.31792.99900.04280.01062.53285.718.071.736.6

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

lnc:DerivativeInvestments, us-gaap:EquityContract, us-gaap:Nondesignated



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value1112664372429404162140427374557471390393616492475627269244235334243175285239193184170
Percentage of DerivativeFairValueOfDerivativeLiability8553.81302.01162.51128.91122.2415.4197.2584.9269.1705.11023.91857.13930.06160.04100.07916.74478.613450.04880.01468.84771.41157.1546.9527.8478.0419.6448.8653.8

lnc:DerivativeInvestments, us-gaap:InterestRateContract, us-gaap:Nondesignated



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value140219319125105138233195165127142151160701307317504330383393396342418452560744613475
Percentage of DerivativeFairValueOfDerivativeLiability1076.9429.4996.9328.9291.7353.8328.2267.1118.7160.8308.7719.01600.07010.02558.35283.33600.016500.07660.02456.25657.11628.61306.2837.01120.01617.41495.11826.9

lnc:FutureContractBenefits, lnc:IndexedAnnuityContracts, us-gaap:Nondesignated



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value13802585209819731730130515711400134614181318126812381139112511021088110010431155118011701117116710901048924732
Percentage of DerivativeFairValueOfDerivativeLiability10615.45068.66556.25192.14805.63346.22212.71917.8968.31794.92865.26038.112380.011390.09375.018366.77771.455000.020860.07218.816857.15571.43490.62161.12180.02278.32253.72815.4

us-gaap:OtherAssets, lnc:GLBDirectEmbeddedDerivatives, us-gaap:Nondesignated



Period End2020-03-312019-09-302019-06-30
Value45968461
Percentage of DerivativeFairValueOfDerivativeLiability35353.82643.82.6

us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation

lnc:DerivativeInvestments, us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value8662964342228748113941761631431139013238935622448645491219183199188194191250
Percentage of DerivativeFairValueOfDerivativeLiability6661.5580.41356.2584.2241.7123.1159.2128.8126.6206.3310.9538.1900.01320.03241.75933.31600.02400.01280.0337.51300.01042.9571.9368.5376.0421.7465.9961.5

us-gaap:DerivativeInstrumentRisk

lnc:TotalDerivativeInstruments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value84314306465332572674179323822400234825632324215721053194460651424733299433582231295123012114231322662322
Percentage of DerivativeFairValueOfDerivativeLiability64853.88443.114540.68571.17427.84597.43354.93287.71689.23244.35052.210271.421050.031940.038383.385700.033807.1149700.067160.013943.842157.110957.16606.24283.34532.05047.8

us-gaap:DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value1663867112988076268173037735665953449048455321213822878816595806666118187581011
Percentage of DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value17431031221013133617678-36-37-5-77-312-253-118-65-45-4-78-5-23118187581011
Percentage of DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueByMeasurementBasis, us-gaap:InvestmentType

us-gaap:DerivativeLiabilities

us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:OtherLiabilities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312015-12-31
Value121234958435824216019729023433821355369
Percentage of DerivativeLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:OtherLiabilities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312015-12-31
Value121234958435824216019729023433821355369
Percentage of DerivativeLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeLiabilityCollateralRightToReclaimCashOffset



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value148955781746128515513490158581570527630
Percentage of DerivativeLiabilityCollateralRightToReclaimCashOffset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeLiabilityFairValueGrossAsset



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value251381951861481031492272782961241211055363221302616138348750409575551003807754895
Percentage of DerivativeLiabilityFairValueGrossAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Range, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByLiabilityClass, us-gaap:InvestmentType, us-gaap:MeasurementInputType, us-gaap:ValuationTechnique

us-gaap:DerivativeLiabilityMeasurementInput

srt:Maximum, us-gaap:FairValueInputsLevel3, lnc:FutureContractBenefitsIndexedAnnuityAndUniversalLifeContractsEmbeddedDerivatives, lnc:FutureContractBenefits, us-gaap:MeasurementInputLapseRate, us-gaap:IncomeApproachValuationTechnique



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value0.090.090.090.090.099.00.09
Percentage of DerivativeLiabilityMeasurementInput100.0100.0100.0100.0100.0100.0100.0

srt:Maximum, us-gaap:FairValueInputsLevel3, lnc:GLBDirectEmbeddedDerivatives, us-gaap:OtherLiabilities, us-gaap:MeasurementInputCreditSpread, us-gaap:IncomeApproachValuationTechnique



Period End2020-03-312019-12-312019-09-30
Value0.00350.00270.0035
Percentage of DerivativeLiabilityMeasurementInput3.93.03.9

srt:Maximum, us-gaap:FairValueInputsLevel3, lnc:GLBDirectEmbeddedDerivatives, us-gaap:OtherLiabilities, us-gaap:MeasurementInputPriceVolatility, us-gaap:IncomeApproachValuationTechnique



Period End2020-03-312019-12-312019-09-30
Value0.280.280.29
Percentage of DerivativeLiabilityMeasurementInput311.1311.1322.2

srt:Minimum, us-gaap:FairValueInputsLevel3, lnc:FutureContractBenefitsIndexedAnnuityAndUniversalLifeContractsEmbeddedDerivatives, lnc:FutureContractBenefits, us-gaap:MeasurementInputLapseRate, us-gaap:IncomeApproachValuationTechnique



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value0.010.010.010.010.011.00.01
Percentage of DerivativeLiabilityMeasurementInput11.111.111.111.111.111.111.1

srt:Minimum, us-gaap:FairValueInputsLevel3, lnc:GLBDirectEmbeddedDerivatives, us-gaap:OtherLiabilities, us-gaap:MeasurementInputCreditSpread, us-gaap:IncomeApproachValuationTechnique



Period End2020-03-312019-12-312019-09-30
Value0.00030.00010.0002
Percentage of DerivativeLiabilityMeasurementInput0.30.10.2

srt:WeightedAverage, us-gaap:FairValueInputsLevel3, lnc:GLBDirectEmbeddedDerivatives, us-gaap:OtherLiabilities, us-gaap:MeasurementInputCreditSpread, us-gaap:IncomeApproachValuationTechnique



Period End2020-03-31
Value0.0027
Percentage of DerivativeLiabilityMeasurementInput3.0

srt:WeightedAverage, us-gaap:FairValueInputsLevel3, lnc:GLBDirectEmbeddedDerivatives, us-gaap:OtherLiabilities, us-gaap:MeasurementInputPriceVolatility, us-gaap:IncomeApproachValuationTechnique



Period End2020-03-31
Value0.1372
Percentage of DerivativeLiabilityMeasurementInput152.4

srt:WeightedAverage, us-gaap:FairValueInputsLevel3, lnc:GLBDirectEmbeddedDerivatives, us-gaap:OtherLiabilities, us-gaap:MeasurementInputWithdrawalRate, us-gaap:IncomeApproachValuationTechnique



Period End2020-03-31
Value0.94
Percentage of DerivativeLiabilityMeasurementInput1044.4

us-gaap:Range, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByLiabilityClass, us-gaap:MeasurementInputType, us-gaap:ValuationTechnique

srt:Maximum, us-gaap:FairValueInputsLevel3, lnc:GLBDirectEmbeddedDerivatives, us-gaap:MeasurementInputLapseRate, us-gaap:IncomeApproachValuationTechnique



Period End2020-03-31
Value0.3
Percentage of DerivativeLiabilityMeasurementInput333.3

us-gaap:DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoaned



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value7639378844123164267719892514193318472201192218111772211633513832334322182527144219921574140314421343
Percentage of DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoaned100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAmountOffsetAgainstCollateral



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value6150323135952494204616441960155614911620135212841283148628273441299720752401137318191489133513791343
Percentage of DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAmountOffsetAgainstCollateral100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAsset



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value251381951861481031492272782961241211055363221302616138348750409555
Percentage of DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedCollateralRightToReclaimCash



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value148955781746128515513490158581
Percentage of DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedCollateralRightToReclaimCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedGross



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value7664392646073350282520922663216021252497204619321877265236733962360422792565147620791624144315371398
Percentage of DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeNotionalAmount



Period End2020-03-312019-12-312019-09-302018-12-31
Value182504163315155609137497
Percentage of DerivativeNotionalAmount100.0100.0100.0100.0

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

lnc:DerivativeInvestments, us-gaap:ForeignExchangeContract, us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument



Period End2020-03-312019-12-312019-09-302018-12-31
Value2912287427142326
Percentage of DerivativeNotionalAmount1.61.81.71.7

lnc:DerivativeInvestments, us-gaap:InterestRateContract, us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument



Period End2020-03-312019-12-312019-09-302018-12-31
Value2397238723522741
Percentage of DerivativeNotionalAmount1.31.51.52.0

lnc:DerivativeInvestments, us-gaap:InterestRateContract, us-gaap:FairValueHedging, us-gaap:DesignatedAsHedgingInstrument



Period End2020-03-312019-12-312019-09-302018-12-31
Value1170126112611268
Percentage of DerivativeNotionalAmount0.60.80.80.9

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

lnc:DerivativeInvestments, us-gaap:CreditRiskContract, us-gaap:Nondesignated



Period End2020-03-312019-12-31
Value39455
Percentage of DerivativeNotionalAmount0.20.0

lnc:DerivativeInvestments, us-gaap:EquityContract, us-gaap:Nondesignated



Period End2020-03-312019-12-312019-09-302018-12-31
Value55784435554021730487
Percentage of DerivativeNotionalAmount30.626.725.822.2

lnc:DerivativeInvestments, us-gaap:ForeignExchangeContract, us-gaap:Nondesignated



Period End2020-03-312019-12-312019-09-302018-12-31
Value16626233347
Percentage of DerivativeNotionalAmount0.10.20.20.0

lnc:DerivativeInvestments, us-gaap:InterestRateContract, us-gaap:Nondesignated



Period End2020-03-312019-12-312019-09-302018-12-31
Value119681112921108732100628
Percentage of DerivativeNotionalAmount65.669.169.973.2

us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation

lnc:DerivativeInvestments, us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument



Period End2020-03-312019-12-312019-09-302018-12-31
Value5309526150665067
Percentage of DerivativeNotionalAmount2.93.23.33.7

us-gaap:DerivativeInstrumentRisk

lnc:TotalDerivativeInstruments



Period End2020-03-312019-12-312019-09-302018-12-31
Value182504163315155609137497
Percentage of DerivativeNotionalAmount100.0100.0100.0100.0

us-gaap:CreditRiskContract



Period End2020-03-312019-12-31
Value39455
Percentage of DerivativeNotionalAmount0.20.0

us-gaap:EquityContract



Period End2020-03-312019-12-312019-09-30
Value557844355540217
Percentage of DerivativeNotionalAmount30.626.725.8

us-gaap:ForeignExchangeContract



Period End2020-03-312019-12-312019-09-30
Value307831363047
Percentage of DerivativeNotionalAmount1.71.92.0

us-gaap:InterestRateContract



Period End2020-03-312019-12-312019-09-30
Value123248116569112345
Percentage of DerivativeNotionalAmount67.571.472.2

us-gaap:EquitySecuritiesFvNi



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value8310315819615399112
Percentage of EquitySecuritiesFvNi100.0100.0100.0100.0100.0100.0100.0

us-gaap:CededCreditRisk

lnc:AtheneHoldingLtd.



Period End2020-03-31
Value14
Percentage of EquitySecuritiesFvNi16.9

us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value8310315819615399112
Percentage of EquitySecuritiesFvNi100.0100.0100.0100.0100.0100.0100.0

us-gaap:EstimateOfFairValueFairValueDisclosure



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value8310315819615399112
Percentage of EquitySecuritiesFvNi100.0100.0100.0100.0100.0100.0100.0

us-gaap:Range, us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType, us-gaap:MeasurementInputType, us-gaap:ValuationTechnique

us-gaap:EquitySecuritiesFvNiMeasurementInput

srt:Maximum, us-gaap:EquitySecurities, us-gaap:FairValueInputsLevel3, us-gaap:EquitySecurities, lnc:MeasurementInputLiquidityDurationAdjustment, us-gaap:IncomeApproachValuationTechnique



Period End2020-03-31
Value0.073
Percentage of EquitySecuritiesFvNiMeasurementInput100.0

srt:Minimum, us-gaap:EquitySecurities, us-gaap:FairValueInputsLevel3, us-gaap:EquitySecurities, lnc:MeasurementInputLiquidityDurationAdjustment, us-gaap:IncomeApproachValuationTechnique



Period End2020-03-31
Value0.045
Percentage of EquitySecuritiesFvNiMeasurementInput61.6

srt:WeightedAverage, us-gaap:EquitySecurities, us-gaap:FairValueInputsLevel3, us-gaap:EquitySecurities, lnc:MeasurementInputLiquidityDurationAdjustment, us-gaap:IncomeApproachValuationTechnique



Period End2020-03-31
Value0.067
Percentage of EquitySecuritiesFvNiMeasurementInput91.8

us-gaap:ConcentrationRiskByBenchmark, us-gaap:ConcentrationRiskByType

us-gaap:FairValueConcentrationOfRiskInvestments

lnc:InvestedAssets, lnc:ConsumerNonCyclicalIndustry



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value164001630016000155001514500141420015000
Percentage of FairValueConcentrationOfRiskInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0

lnc:InvestedAssets, us-gaap:FederalHomeLoanMortgageCorporationCertificatesAndObligationsFHLMC



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value14001300130013001400140014001400150013001500
Percentage of FairValueConcentrationOfRiskInvestments8.58.08.18.49271.59.79655.29.90.08.70.0

lnc:InvestedAssets, us-gaap:FederalNationalMortgageAssociationCertificatesAndObligationsFNMA



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value11001000130013001300130012001300120010001100
Percentage of FairValueConcentrationOfRiskInvestments6.76.18.18.48609.39.08275.99.20.06.70.0

lnc:InvestedAssets, us-gaap:FinancialService



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value15700164001630015700151420013
Percentage of FairValueConcentrationOfRiskInvestments95.7100.6101.9101.3101.397.994.5

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value2724514139374258404040143867347635053139243923242224154581738988317991837280322092547312333533257373033873506303622752051
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument

us-gaap:DerivativeFinancialInstrumentsAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value2027868791466267534354932793066155112-932644231905558997408499891023780811126614061823183520262470
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs74.416.920.110.96.613.39.22.78.01.02.76.75.0-6.032.3108.721.530.948.926.438.438.832.823.324.933.941.552.060.489.1120.4

us-gaap:EquitySecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value3030546825252626271621901831821771631701671641611411351571581581621611471471108756
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs1.10.61.41.60.60.60.70.70.85.27.87.98.211.520.043.718.99.18.85.06.16.25.14.75.04.34.34.23.63.82.7

us-gaap:TradingAssetsExcludingDebtAndEquitySecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-31
Value651666566523236671822474950596573
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs23.913.014.412.35.81.70.50.61.31.62.12.54.24.1

us-gaap:FinancialInstrument, us-gaap:InvestmentType

lnc:GLBCededEmbeddedDerivatives, us-gaap:OtherAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-12-31
Value728602411115072354145515385116203268154
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs26.71.26.12.61.21.80.91.21.31.62.23.75.213.114.96.0

lnc:GLBDirectEmbeddedDerivatives, us-gaap:OtherLiabilities



Period End2020-03-312019-09-302019-06-302017-12-312016-12-312015-12-312014-12-31
Value-4596-846-1-67-371-953-174
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs-168.7-21.5-0.0-2.1-24.0-53.0-6.8

lnc:HybridAndRedeemablePreferredSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value7278787878757778777676827976888992949496755566
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs2.61.52.01.81.91.92.02.22.22.43.13.53.64.910.822.910.45.25.13.43.42.21.8

lnc:IndexedAnnuityCededEmbeddedDerivatives, us-gaap:OtherAssets



Period End2020-03-312019-12-312019-03-312018-12-31
Value799927872902
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs29.318.021.622.5

lnc:IndexedAnnuityContracts, lnc:FutureContractBenefits



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value-1380-2585-2098-1973-1730-1305-1571-1400-1346-1418-1318-1268-1238-1139-1125-1102-1088-1100-1043-1155-1180-1170-1048
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs-50.7-50.3-53.3-46.3-42.8-32.5-40.6-40.3-38.4-45.2-54.0-54.6-55.7-73.7-137.7-283.3-123.2-61.1-56.8-41.2-53.4-45.9-28.1

us-gaap:AssetBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value19626821721381293131262727432933356244454633333310
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs7.25.25.55.02.00.70.80.90.70.91.11.91.32.14.315.95.02.52.51.21.51.30.3

us-gaap:CommercialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value1192222352766214473889101112151520
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs0.00.00.20.00.00.00.60.10.80.20.20.92.00.54.72.11.00.60.60.40.70.60.5

us-gaap:CorporateBondSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value41034281390936483521326932093181319230912580251724032405243124252185199320022039203319531701
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs150.683.399.385.787.281.483.091.591.198.5105.8108.3108.0155.7297.6623.4247.5110.8109.072.792.076.745.6

us-gaap:ForeignGovernmentDebtSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value879011511311010910810810811011010911011111311211111111511411310979
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs3.21.82.92.72.72.72.83.13.13.54.54.74.97.213.828.812.66.26.34.15.14.32.1

us-gaap:ResidentialMortgageBackedSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302018-12-312018-09-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value1111077121377354161111111
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs0.00.20.30.20.20.40.50.30.30.26.64.10.10.10.10.00.00.00.0

us-gaap:USGovernmentDebtSecurities, us-gaap:FixedMaturities



Period End2020-03-312019-12-312018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-30
Value5555555810
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs0.20.10.10.20.20.20.21.02.6

us-gaap:FairValueOptionAggregateDifferencesLoansAndLongTermReceivables



Period End2020-03-31
Value26
Percentage of FairValueOptionAggregateDifferencesLoansAndLongTermReceivables100.0

us-gaap:FinancingReceivablePortfolioSegment

us-gaap:CommercialRealEstatePortfolioSegment



Period End2020-03-31
Value26
Percentage of FairValueOptionAggregateDifferencesLoansAndLongTermReceivables100.0

us-gaap:FinancingReceivableAllowanceForCreditLosses



Period End2020-03-312019-12-31
Value1612
Percentage of FinancingReceivableAllowanceForCreditLosses100.0100.0

lnc:CumulativeEffectPeriodOfAdoption

lnc:CumulativeEffectPeriodOfAdoptionAdjustment



Period End2020-03-31
Value88
Percentage of FinancingReceivableAllowanceForCreditLosses54.7

us-gaap:FinancingReceivablePortfolioSegment

us-gaap:CommercialRealEstatePortfolioSegment



Period End2020-03-31
Value126
Percentage of FinancingReceivableAllowanceForCreditLosses78.3

us-gaap:ResidentialPortfolioSegment



Period End2020-03-312019-12-31
Value352
Percentage of FinancingReceivableAllowanceForCreditLosses21.7100.0

us-gaap:FinancingReceivablePortfolioSegment, lnc:CumulativeEffectPeriodOfAdoption

us-gaap:CommercialRealEstatePortfolioSegment, lnc:CumulativeEffectPeriodOfAdoptionAdjustment



Period End2020-03-31
Value62
Percentage of FinancingReceivableAllowanceForCreditLosses38.5

us-gaap:ResidentialPortfolioSegment, lnc:CumulativeEffectPeriodOfAdoptionAdjustment



Period End2020-03-31
Value26
Percentage of FinancingReceivableAllowanceForCreditLosses16.1

us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear

us-gaap:CommercialRealEstatePortfolioSegment



Period End2020-03-31
Value5414
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear100.0

us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanToValue

us-gaap:CommercialRealEstatePortfolioSegment, lnc:LoanToValueRatioLessThanSixtyFive



Period End2020-03-31
Value5229
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear96.6

us-gaap:CommercialRealEstatePortfolioSegment, lnc:LoanToValueRatioSeventyFiveToOneHundred



Period End2020-03-31
Value1000000.0
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear0.0

us-gaap:CommercialRealEstatePortfolioSegment, lnc:LoanToValueRatioSixtyFiveToSeventyFour



Period End2020-03-31
Value184
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear3.4

us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear

us-gaap:CommercialRealEstatePortfolioSegment



Period End2020-03-31
Value1949
Percentage of FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear100.0

us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanToValue

us-gaap:CommercialRealEstatePortfolioSegment, lnc:LoanToValueRatioLessThanSixtyFive



Period End2020-03-31
Value1732
Percentage of FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear88.9

us-gaap:CommercialRealEstatePortfolioSegment, lnc:LoanToValueRatioSixtyFiveToSeventyFour



Period End2020-03-31
Value217
Percentage of FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear11.1

us-gaap:FinancialInstrumentPerformanceStatus, us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancingReceivableOriginatedInCurrentFiscalYear

us-gaap:PerformingFinancingReceivable, us-gaap:ResidentialPortfolioSegment



Period End2020-03-31
Value73
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear100.0

us-gaap:FinancingReceivablePortfolioSegment

us-gaap:CommercialRealEstatePortfolioSegment



Period End2020-03-31
Value715
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear979.5

us-gaap:ResidentialPortfolioSegment



Period End2020-03-31
Value73
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear100.0

us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanToValue

us-gaap:CommercialRealEstatePortfolioSegment, lnc:LoanToValueRatioLessThanSixtyFive



Period End2020-03-31
Value654
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear895.9

us-gaap:CommercialRealEstatePortfolioSegment, lnc:LoanToValueRatioSixtyFiveToSeventyFour



Period End2020-03-31
Value61
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear83.6

us-gaap:FinancialInstrumentPerformanceStatus, us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear

us-gaap:NonperformingFinancingReceivable, us-gaap:ResidentialPortfolioSegment



Period End2020-03-31
Value18
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear100.0

us-gaap:PerformingFinancingReceivable, us-gaap:ResidentialPortfolioSegment



Period End2020-03-31
Value454
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear2522.2

us-gaap:FinancingReceivablePortfolioSegment

us-gaap:CommercialRealEstatePortfolioSegment



Period End2020-03-31
Value3457
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear19205.6

us-gaap:ResidentialPortfolioSegment



Period End2020-03-31
Value472
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear2622.2

us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanToValue

us-gaap:CommercialRealEstatePortfolioSegment, lnc:LoanToValueRatioLessThanSixtyFive



Period End2020-03-31
Value2964
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear16466.7

us-gaap:CommercialRealEstatePortfolioSegment, lnc:LoanToValueRatioSixtyFiveToSeventyFour



Period End2020-03-31
Value493
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear2738.9

us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear

us-gaap:CommercialRealEstatePortfolioSegment



Period End2020-03-31
Value2000
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear100.0

us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanToValue

us-gaap:CommercialRealEstatePortfolioSegment, lnc:LoanToValueRatioLessThanSixtyFive



Period End2020-03-31
Value1798
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear89.9

us-gaap:CommercialRealEstatePortfolioSegment, lnc:LoanToValueRatioSixtyFiveToSeventyFour



Period End2020-03-31
Value202
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear10.1

us-gaap:FinancialInstrumentPerformanceStatus, us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear

us-gaap:NonperformingFinancingReceivable, us-gaap:ResidentialPortfolioSegment



Period End2020-03-31
Value6
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear100.0

us-gaap:PerformingFinancingReceivable, us-gaap:ResidentialPortfolioSegment



Period End2020-03-31
Value223
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear3716.7

us-gaap:FinancingReceivablePortfolioSegment

us-gaap:CommercialRealEstatePortfolioSegment



Period End2020-03-31
Value2617
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear43616.7

us-gaap:ResidentialPortfolioSegment



Period End2020-03-31
Value229
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear3816.7

us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanToValue

us-gaap:CommercialRealEstatePortfolioSegment, lnc:LoanToValueRatioLessThanSixtyFive



Period End2020-03-31
Value2346
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear39100.0

us-gaap:CommercialRealEstatePortfolioSegment, lnc:LoanToValueRatioSixtyFiveToSeventyFour



Period End2020-03-31
Value271
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear4516.7

us-gaap:FinancingReceivableRecordedInvestmentCurrent



Period End2020-03-312019-12-31
Value1687516279
Percentage of FinancingReceivableRecordedInvestmentCurrent100.0100.0

us-gaap:FinancingReceivablePortfolioSegment

us-gaap:CommercialRealEstatePortfolioSegment



Period End2020-03-312019-12-31
Value1616815620
Percentage of FinancingReceivableRecordedInvestmentCurrent95.896.0

us-gaap:ResidentialPortfolioSegment



Period End2020-03-312019-12-31
Value707659
Percentage of FinancingReceivableRecordedInvestmentCurrent4.24.0

us-gaap:FinancingReceivableRecordedInvestmentNonaccrualStatus



Period End2020-03-312019-12-31
Value2417
Percentage of FinancingReceivableRecordedInvestmentNonaccrualStatus100.0100.0

us-gaap:FinancingReceivablePortfolioSegment

us-gaap:ResidentialPortfolioSegment



Period End2020-03-312019-12-31
Value2417
Percentage of FinancingReceivableRecordedInvestmentNonaccrualStatus100.0100.0

us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivablesPeriodPastDue

us-gaap:FinancingReceivableRecordedInvestmentPastDue

us-gaap:ResidentialPortfolioSegment, us-gaap:FinancingReceivables30To59DaysPastDue



Period End2020-03-312019-12-31
Value1627
Percentage of FinancingReceivableRecordedInvestmentPastDue100.0100.0

us-gaap:ResidentialPortfolioSegment, us-gaap:FinancingReceivables60To89DaysPastDue



Period End2020-03-312019-12-31
Value410
Percentage of FinancingReceivableRecordedInvestmentPastDue25.037.0

us-gaap:ResidentialPortfolioSegment, us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDue



Period End2020-03-312019-12-31
Value2316
Percentage of FinancingReceivableRecordedInvestmentPastDue143.859.3

us-gaap:FinancingReceivablesPeriodPastDue

us-gaap:FinancingReceivables30To59DaysPastDue



Period End2020-03-312019-12-31
Value1630
Percentage of FinancingReceivableRecordedInvestmentPastDue100.0111.1

us-gaap:FinancingReceivables60To89DaysPastDue



Period End2020-03-312019-12-31
Value410
Percentage of FinancingReceivableRecordedInvestmentPastDue25.037.0

us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDue



Period End2020-03-312019-12-31
Value2316
Percentage of FinancingReceivableRecordedInvestmentPastDue143.859.3

us-gaap:FundsHeldUnderReinsuranceAgreementsAsset



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-31
Value535536543548549557566572576593602607610617628628630629639642646649761764772776782788798837846863866874911
Percentage of FundsHeldUnderReinsuranceAgreementsAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FundsHeldUnderReinsuranceAgreementsLiability



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value184318101817179617621740173317111726176118071862196119761999201959763867671871776480684284386789892692694098799910431045107211071135114911361196121612612042
Percentage of FundsHeldUnderReinsuranceAgreementsLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BalanceSheetLocation

us-gaap:HedgedAssetFairValueHedgeCumulativeIncreaseDecrease

us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value328202240196161
Percentage of HedgedAssetFairValueHedgeCumulativeIncreaseDecrease100.0100.0100.0100.0100.0

us-gaap:BalanceSheetLocation

us-gaap:HedgedLiabilityFairValueHedgeCumulativeIncreaseDecrease

us-gaap:LongTermDebt



Period End2020-03-312019-12-31
Value79160
Percentage of HedgedLiabilityFairValueHedgeCumulativeIncreaseDecrease100.0100.0

us-gaap:DerivativeInstrumentRisk

lnc:DiscontinuedHedges



Period End2020-03-312019-12-31
Value381118
Percentage of HedgedLiabilityFairValueHedgeCumulativeIncreaseDecrease482.373.8

us-gaap:FinancingReceivablePortfolioSegment

us-gaap:ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance

us-gaap:ResidentialPortfolioSegment



Period End2020-03-312019-12-31
Value61
Percentage of ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance100.0100.0

us-gaap:Investments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value13525213369713252012638012174511521611268611200711004711308911171411063910863310672111159111058710637110220810319910200910601510296710138510095898207952919556896167992859906598468968889291293130921918627884311833408611482953784587591866510
Percentage of Investments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilitiesFairValueDisclosure