AFL


Line plots across dimensions of each concept
Tables

Table of contents



us-gaap:CommonStockValue

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesOutstanding

us-gaap:CommonStockSharesAuthorized

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:Revenues
us-gaap:StatementBusinessSegments

us-gaap:PremiumsEarnedNet
us-gaap:StatementBusinessSegments

us-gaap:NetInvestmentIncome
us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments
us-gaap:OtherIncome

us-gaap:PolicyholderBenefitsAndClaimsIncurredNet

us-gaap:DeferredPolicyAcquisitionCostAmortizationExpense

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:InterestExpense

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

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

us-gaap:NetIncomeLoss
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:Assets
us-gaap:StatementBusinessSegments

us-gaap:Liabilities
us-gaap:ConsolidatedEntities

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:TreasuryStockValue

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:PaymentsOfDividends

us-gaap:PaymentsOfDividends

us-gaap:PaymentsForRepurchaseOfCommonStock
us-gaap:ShareRepurchaseProgram
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
us-gaap:AwardType, us-gaap:Vesting

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

afl:AcquisitionAndOperatingCostAndExpenses
us-gaap:StatementBusinessSegments
afl:Adjustednetinvestmentincome

afl:BlendedU.S.andJapanStatutoryTaxRate

afl:CapitalizationofDeferredPolicyAcquisitionCosts
us-gaap:StatementBusinessSegments
afl:DerivativeHedgeIncome

afl:Derivativeandnonderivativehedginginstrumentsgainlossrecognizedinothercomprehensiveincomeeffectiveportionbeforetax
us-gaap:ProductOrService
afl:EffectOfExchangeRateChangesOnUnpaidPolicyClaimsLiability

afl:Effectofforeigncurrencytranslationonaftertaxadjustedearnings

afl:Foreigncurrencytranslationgainslossesonremeasurementofmonetaryassets
us-gaap:StatementBusinessSegments
afl:GainLossOnChangeInFairValueOfDerivativeInterestRateComponentOperating

afl:GainLossOnInvestmentsExcludedFromAdjustedEarnings

afl:GainLossOnInvestmentsExcludedFromAdjustedRevenue

afl:Incometaxesapplicabletopretaxadjustedearnings

afl:IncreaseDecreaseInCollateralHeldForSecuritiesLendingAndDerivatives

afl:MiddleMarketLoanCommitmentIncreaseDuringPeriod
us-gaap:StatementBusinessSegments
afl:Netinterestcashflowsfromderivatives
us-gaap:StatementEquityComponents
afl:OtherAdditionsDuringPeriodShares

afl:OtherComprehensiveIncomeReclassificationAdjustmentForSaleAndWriteDownOfSecuritiesIncludedInNetIncomeBeforeTax
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

afl:Otherincomeloss

afl:PaymentsForProceedsFromOtherInvestmentsNet

afl:PaymentstoAcquireEquitySecurities
us-gaap:StatementBusinessSegments
afl:PercentageOfCompanyRevenue

afl:ProceedsFromSaleOfEquitySecuritiesFVNI
us-gaap:Currency, us-gaap:FinancialInstrument, us-gaap:InvestmentType
afl:SecuritiesContinuousUnrealizedLossPositionLessthan12monthsAggregateLosses
us-gaap:FinancialInstrument
us-gaap:ShareRepurchaseProgram
afl:StockAcquiredUnderShareRepurchaseProgramShares
us-gaap:StatementEquityComponents

afl:TotalAdjustedRevenues

afl:TotalCreditLossesPeriodIncreaseDecrease

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents

us-gaap:AllowanceForLoanAndLeaseLossesPeriodIncreaseDecrease
us-gaap:InvestmentType

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
us-gaap:ProductOrService
us-gaap:AssumedPremiumsEarned
us-gaap:ProductOrService, us-gaap:StatementBusinessSegments

us-gaap:BenefitsLossesAndExpenses

us-gaap:CapitalLeaseObligationsIncurred

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
us-gaap:ProductOrService
us-gaap:CededPremiumsEarned
us-gaap:ProductOrService, us-gaap:StatementBusinessSegments

us-gaap:ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1
us-gaap:DerivativeInstrumentRisk, us-gaap:FinancialInstrument

us-gaap:ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge1
us-gaap:DerivativeInstrumentRisk, us-gaap:FinancialInstrument

us-gaap:CommonStockDividendsPerShareCashPaid
us-gaap:StatementEquityComponents
us-gaap:CommonStockDividendsPerShareDeclared

us-gaap:ComprehensiveIncomeNetOfTax
us-gaap:StatementGeographical, us-gaap:InvestmentType
us-gaap:ConcentrationRiskPercentage1

us-gaap:DebtSecuritiesAvailableForSaleAllowanceForCreditLossPeriodIncreaseDecrease
us-gaap:FinancialInstrument, us-gaap:InformationByCategoryOfDebtSecurity
us-gaap:DebtSecuritiesAvailableForSaleRealizedGain
us-gaap:FinancialInstrument, us-gaap:InformationByCategoryOfDebtSecurity
us-gaap:DebtSecuritiesAvailableForSaleRealizedLoss

us-gaap:DebtSecuritiesAvailableForSaleUnrealizedGainLoss

us-gaap:DebtSecuritiesHeldToMaturityAllowanceForCreditLossPeriodIncreaseDecrease
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanContributionsByEmployer
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanInterestCost
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanServiceCost
us-gaap:RetirementPlanType
us-gaap:StatementBusinessSegments
us-gaap:DerivativeCostOfHedge

us-gaap:DerivativeFairValueHedgeIncludedInEffectivenessGainLoss
us-gaap:DerivativeInstrumentRisk, us-gaap:FinancialInstrument
us-gaap:ConsolidatedEntities, us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
us-gaap:DerivativeGainLossOnDerivativeNet
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:VariableInterestEntitiesByClassificationOfEntity
us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship

us-gaap:DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:VariableInterestEntitiesByClassificationOfEntity
us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
us-gaap:DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:VariableInterestEntitiesByClassificationOfEntity
us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship

us-gaap:DirectPremiumsEarned

us-gaap:DividendsCommonStockCash
us-gaap:StatementEquityComponents

us-gaap:EffectOfExchangeRateOnCashAndCashEquivalents

us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions

us-gaap:FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss
us-gaap:FinancialInstrument

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

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

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues
us-gaap:FinancialInstrument

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases
us-gaap:FinancialInstrument
us-gaap:FinancialInstrument, us-gaap:InvestmentType

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

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

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

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3
us-gaap:FinancialInstrument
us-gaap:FinancialInstrument, us-gaap:InvestmentType
us-gaap:DerivativeInstrumentRisk
us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisChangeInUnrealizedGainLoss
us-gaap:DerivativeInstrumentRisk
us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInEarnings
us-gaap:DerivativeInstrumentRisk
us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInOtherComprehensiveIncomeLoss
us-gaap:DerivativeInstrumentRisk
us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements

us-gaap:FinancingReceivableAllowanceForCreditLossesPeriodIncreaseDecrease
us-gaap:FinancialInstrument, us-gaap:InformationByCategoryOfDebtSecurity
us-gaap:ForeignCurrencyTransactionGainLossRealized

us-gaap:GainLossFromComponentsExcludedFromAssessmentOfFairValueHedgeEffectivenessNet
us-gaap:DerivativeInstrumentRisk, us-gaap:FinancialInstrument

us-gaap:GainLossOnDerivativeInstrumentsNetPretax

us-gaap:GainLossOnFairValueHedgeIneffectivenessNet
us-gaap:DerivativeInstrumentRisk, us-gaap:FinancialInstrument

us-gaap:GainLossOnInvestments
us-gaap:FinancialInstrument
us-gaap:FinancialInstrument, us-gaap:InformationByCategoryOfDebtSecurity
us-gaap:InvestmentType

us-gaap:IncomeTaxesPaidNet

us-gaap:IncreaseDecreaseInAccruedIncomeTaxesPayable

us-gaap:IncreaseDecreaseInInsuranceLiabilities

us-gaap:IncreaseDecreaseInReceivables

us-gaap:InsuranceCommissions

us-gaap:InterestPaidNet
us-gaap:ProductOrService
us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1
us-gaap:ProductOrService
us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1
us-gaap:ProductOrService
us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1
us-gaap:Range, us-gaap:CreditFacility
us-gaap:LineOfCreditFacilityCommitmentFeePercentage

us-gaap:NetChangeAnnuitiesAndInvestmentCertificates

us-gaap:NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent

us-gaap:OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal

us-gaap:OperatingIncomeLoss
us-gaap:StatementBusinessSegments
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossBeforeTax

us-gaap:OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesBeforeTax

us-gaap:OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
us-gaap:StatementEquityComponents
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax

us-gaap:OtherComprehensiveIncomeLossTax
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:VariableInterestEntitiesByClassificationOfEntity
us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax

us-gaap:OtherNoncashExpense

us-gaap:OtherNoncashIncomeExpense

us-gaap:OtherNonoperatingIncomeExpense
us-gaap:ProductOrService
us-gaap:PaymentsForLossesAndLossAdjustmentExpense

us-gaap:PaymentsForProceedsFromHedgeInvestingActivities

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsToAcquireAvailableForSaleSecuritiesDebt

us-gaap:PaymentsToAcquireLoansReceivable

us-gaap:PolicyholderBenefitsAndClaimsIncurredGross

us-gaap:ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProceedsFromSaleAndCollectionOfLoansReceivable

us-gaap:ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities

us-gaap:ProceedsFromSaleOfTreasuryStock

us-gaap:ProceedsFromStockOptionsExercised

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
us-gaap:AdjustmentsForNewAccountingPronouncements
us-gaap:AdjustmentsForNewAccountingPronouncements, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:ProductOrService
us-gaap:ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountAssumed
us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments
us-gaap:ProductOrService
us-gaap:ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded
us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments
us-gaap:DebtInstrument, us-gaap:SubsequentEventType
us-gaap:RepaymentsOfDebt

us-gaap:RepaymentsOfLongTermDebtAndCapitalSecurities
afl:TreasuryStockActivityByType
us-gaap:StockIssued1
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesDividendReinvestmentPlan
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesOther

us-gaap:StockIssuedDuringPeriodSharesShareBasedCompensation
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised
us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueTreasuryStockReissued
us-gaap:StatementEquityComponents
us-gaap:ProductOrService
us-gaap:SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense
us-gaap:ProductOrService
us-gaap:SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense
us-gaap:ProductOrService, us-gaap:StatementBusinessSegments

us-gaap:TreasuryStockValueAcquiredCostMethod
us-gaap:StatementEquityComponents

afl:AccumulatedOtherComprehensiveIncomeLossDeferredIncomeTaxOnInvestmentSecurities
us-gaap:ConsolidatedEntities
afl:AssetsAmortizedCostDisclosure

afl:AssetsFairValueDisclosureFinancialInstrumentsCarriedatCost
us-gaap:FairValueByFairValueHierarchyLevel

afl:Carryingvalueoffinancialinstrumentsassetsnotoffsetinbalancesheet

afl:Carryingvalueoffinancialinstrumentsliabilitiesnotoffsetinbalancesheet
us-gaap:TransactionType

afl:CashCollateralAssetsNotOffsetinBalanceSheet
us-gaap:TransactionType

afl:CashCollateralLiabilitiesNotOffsetinBalanceSheet
us-gaap:InvestmentType
afl:DebtSecuritiesAvailableforsaleandHeldtomaturityAmortizedCost
us-gaap:InvestmentType
afl:DebtSecuritiesAvailableforsaleandHeldtomaturityFairValue

afl:DebtSecuritiesHeldtoMaturityNetCarryingAmount
us-gaap:Currency
us-gaap:Currency, us-gaap:InvestmentType

afl:DerivativeAssetFairValueAmountOffsetAgainstCollateralNotSubjecttoMasterNettingAgreement
us-gaap:TransactionType

afl:DerivativeAssetFairValueAmountOffsetAgainstCollateralSubjecttoMasterNettingAgreement
us-gaap:TransactionType
us-gaap:ConsolidatedEntities
afl:DerivativeAssetsAmortizedCostDisclosure
us-gaap:ConsolidatedEntities
afl:DerivativeLiabilitiesAmortizedCostDisclosure

afl:DerivativeLiabilityFairValueAmountOffsetAgainstCollateralNotSubjecttoMasterNettingAgreement
us-gaap:TransactionType

afl:DerivativeLiabilityFairValueAmountOffsetAgainstCollateralSubjecttoMasterNettingAgreement
us-gaap:TransactionType

afl:Financialinstrumentsamountofassetsoffsetagainstcollateral

afl:Financialinstrumentsamountofliabilitiesoffsetagainstcollateral
us-gaap:TransactionType

afl:GrossAmountsofRecognizedFinancialInstrumentsOffsettingAssets
us-gaap:TransactionType

afl:GrossAmountsofRecognizedFinancialInstrumentsOffsettingLiabilities
us-gaap:TransactionType

afl:LiabilitiesFairValueDisclosureFinancialInstrumentsCarriedAtCost
us-gaap:FairValueByFairValueHierarchyLevel

afl:MiddleMarketLoanProgramUnfundedAmount

afl:NetAmountsofFinancialInstrumentsPresentedinBalanceSheetOffsettingAssets
us-gaap:TransactionType

afl:NetAmountsofFinancialInstrumentsPresentedinBalanceSheetOffsettingLiabilities
us-gaap:TransactionType
us-gaap:AdjustmentsForNewAccountingPronouncements
afl:NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionReclassificationFromHeldToMaturityToAvailableForSaleDebtSecurities
us-gaap:Range, us-gaap:StatementScenario, us-gaap:AdjustmentsForNewAccountingPronouncements
us-gaap:Range, us-gaap:StatementScenario, us-gaap:AdjustmentsForNewAccountingPronouncements
afl:NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionUnRealizedGainLossNetOfTaxReclassificationToAccumulatedOtherComprehensiveIncome

afl:ObligationToReturnCashOrSecuritiesReceivedAsCollateral

afl:OtherInvestmentsCarriedatAmortizedCost

afl:OtherInvestmentsCarriedatAmortizedCostFairValueDisclosure
us-gaap:FairValueByFairValueHierarchyLevel

afl:OtherInvestmentsCarriedatFairValueFairValueDisclosure
us-gaap:FairValueByFairValueHierarchyLevel

afl:OtherPolicyholdersFundsFairValueDisclosure
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:ConsolidatedEntities
afl:Otherinvestmentsfairvaluedisclosure
us-gaap:StatementBusinessSegments
afl:PercentageOfCompanyAssets
us-gaap:InvestmentType
afl:PercentofLoansandLeasesReceivableGrossCarryingValue
us-gaap:MortgageLoansOnRealEstateDescriptionTypeOfProperty, us-gaap:InvestmentType
us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
afl:Reinsurancedeferredprofitliability

afl:SecuritiesCollateralAssetsNotOffsetinBalanceSheet

afl:SecuritiesCollateralLiabilitiesNotOffsetinBalanceSheet
us-gaap:Currency, us-gaap:FinancialInstrument, us-gaap:InvestmentType
afl:SecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses
us-gaap:FinancialInstrument
us-gaap:Currency, us-gaap:FinancialInstrument, us-gaap:InvestmentType
afl:SecuritiesContinuousUnrealizedLossPositionAggregateLosses
us-gaap:FinancialInstrument
us-gaap:Currency, us-gaap:FinancialInstrument, us-gaap:InvestmentType
afl:SecuritiesContinuousUnrealizedLossPositionFairValue
us-gaap:FinancialInstrument
us-gaap:Currency, us-gaap:FinancialInstrument, us-gaap:InvestmentType
afl:SecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue
us-gaap:FinancialInstrument
us-gaap:Currency, us-gaap:FinancialInstrument, us-gaap:InvestmentType
afl:SecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue
us-gaap:FinancialInstrument

afl:TotalFinancialInstrumentAssetsNotCarriedatFairValue

afl:TotalFinancialInstrumentLiabilitiesNotCarriedAtFairValue

afl:TotalPolicyLiabilities
us-gaap:FinancingReceivablePortfolioSegment
afl:WeightedAverageDebtServiceCoverageRatio
us-gaap:FinancingReceivablePortfolioSegment, afl:YearofOrigination
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanToValue

us-gaap:AccruedInvestmentIncomeReceivable

us-gaap:AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:AssetsFairValueDisclosure
us-gaap:ConsolidatedEntities
us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
us-gaap:Currency
us-gaap:Currency, us-gaap:InvestmentType

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
us-gaap:Currency
us-gaap:Currency, us-gaap:InvestmentType

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
us-gaap:ConsolidatedEntities
us-gaap:Currency
us-gaap:Currency, us-gaap:InvestmentType

us-gaap:AvailableForSaleSecuritiesDebtSecurities

us-gaap:CashAndCashEquivalentsFairValueDisclosure
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:AdjustmentsForNewAccountingPronouncements, us-gaap:StatementEquityComponents
us-gaap:CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption
us-gaap:StatementScenario, us-gaap:AdjustmentsForNewAccountingPronouncements, us-gaap:StatementEquityComponents

us-gaap:DebtAndCapitalLeaseObligations
us-gaap:DebtInstrument

us-gaap:DebtSecuritiesAvailableForSaleAllowanceForCreditLoss
us-gaap:ConsolidatedEntities
us-gaap:Currency
us-gaap:Currency, us-gaap:InvestmentType

us-gaap:DebtSecuritiesHeldToMaturityAllowanceForCreditLoss
us-gaap:Currency
us-gaap:Currency, us-gaap:InvestmentType

us-gaap:DeferredPolicyAcquisitionCosts

us-gaap:DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement
us-gaap:Currency, us-gaap:Range, us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:MeasurementInputType, afl:FairValueUnobservableInputType
us-gaap:DerivativeAssetMeasurementInput
us-gaap:Range, us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:MeasurementInputType, afl:FairValueUnobservableInputType

us-gaap:DerivativeAssetNotOffsetPolicyElectionDeduction
us-gaap:TransactionType

us-gaap:DerivativeAssetNotSubjectToMasterNettingArrangement
us-gaap:TransactionType

us-gaap:DerivativeAssets
us-gaap:ConsolidatedEntities
us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:ValuationTechnique, afl:FairValueUnobservableInputType
us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:DerivativeCollateralObligationToReturnCash
us-gaap:TransactionType

us-gaap:DerivativeCollateralObligationToReturnSecurities
us-gaap:TransactionType

us-gaap:DerivativeCollateralRightToReclaimCash
us-gaap:TransactionType

us-gaap:DerivativeCollateralRightToReclaimSecurities
us-gaap:TransactionType

us-gaap:DerivativeFairValueOfDerivativeAsset
us-gaap:ConsolidatedEntities, us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:VariableInterestEntitiesByClassificationOfEntity
us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
us-gaap:TransactionType

us-gaap:DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral
us-gaap:TransactionType

us-gaap:DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral

us-gaap:DerivativeFairValueOfDerivativeLiability
us-gaap:ConsolidatedEntities, us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:VariableInterestEntitiesByClassificationOfEntity
us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
us-gaap:TransactionType

us-gaap:DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral
us-gaap:TransactionType

us-gaap:DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral

us-gaap:DerivativeLiabilities
us-gaap:ConsolidatedEntities
us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:ValuationTechnique, afl:FairValueUnobservableInputType

us-gaap:DerivativeLiabilityFairValueGrossLiabilityIncludingNotSubjectToMasterNettingArrangement
us-gaap:Currency, us-gaap:Range, us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:MeasurementInputType, afl:FairValueUnobservableInputType
us-gaap:DerivativeLiabilityMeasurementInput
us-gaap:Range, us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:MeasurementInputType, afl:FairValueUnobservableInputType

us-gaap:DerivativeLiabilityNotOffsetPolicyElectionDeduction
us-gaap:TransactionType

us-gaap:DerivativeLiabilityNotSubjectToMasterNettingArrangement
us-gaap:TransactionType

us-gaap:DerivativeNetLiabilityPositionAggregateFairValue

us-gaap:DerivativeNotionalAmount
us-gaap:ConsolidatedEntities, us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
us-gaap:FinancialInstrument, us-gaap:LongtermDebtType
us-gaap:AwardType
us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
us-gaap:AwardType, us-gaap:Vesting

us-gaap:EquitySecuritiesFvNi
us-gaap:Currency
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:ValuationTechnique
us-gaap:ValuationTechnique

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

us-gaap:FinanceLeaseLiability
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear
us-gaap:FinancingReceivablePortfolioSegment, afl:CreditRating
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanToValue
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear
us-gaap:FinancingReceivablePortfolioSegment, afl:CreditRating
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanToValue
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivableOriginatedInCurrentFiscalYear
us-gaap:FinancingReceivablePortfolioSegment, afl:CreditRating
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanToValue
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear
us-gaap:FinancingReceivablePortfolioSegment, afl:CreditRating
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanToValue
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear
us-gaap:FinancingReceivablePortfolioSegment, afl:CreditRating
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanToValue
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear
us-gaap:FinancingReceivablePortfolioSegment, afl:CreditRating
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanToValue
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivableRevolving
us-gaap:FinancingReceivablePortfolioSegment, afl:CreditRating
us-gaap:DerivativeInstrumentRisk, us-gaap:FinancialInstrument
us-gaap:HedgedAssetFairValueHedge
us-gaap:DerivativeInstrumentRisk, us-gaap:FinancialInstrument
us-gaap:HedgedAssetFairValueHedgeCumulativeIncreaseDecrease

us-gaap:HeldToMaturitySecurities
us-gaap:ConsolidatedEntities
us-gaap:Currency
us-gaap:Currency, us-gaap:CreditLossStatus, us-gaap:InvestmentType
us-gaap:Currency, us-gaap:InvestmentType
us-gaap:InvestmentType

us-gaap:HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain
us-gaap:Currency
us-gaap:Currency, us-gaap:InvestmentType

us-gaap:HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss
us-gaap:Currency
us-gaap:Currency, us-gaap:InvestmentType

us-gaap:HeldToMaturitySecuritiesFairValue

us-gaap:InvestmentsAndCash

us-gaap:LiabilitiesFairValueDisclosure
us-gaap:ConsolidatedEntities
us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:LiabilityForClaimsAndClaimsAdjustmentExpense
us-gaap:ProductOrService

us-gaap:LiabilityForFuturePolicyBenefits

us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet
us-gaap:ProductOrService
us-gaap:CreditFacility
us-gaap:LineOfCredit
us-gaap:CreditFacility
us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity
us-gaap:FederalHomeLoanBankAdvancesBranchOfFHLBBank

us-gaap:LoansAndLeasesReceivableAllowance
us-gaap:InvestmentType

us-gaap:LoansAndLeasesReceivableGrossCarryingAmount
us-gaap:InvestmentType
us-gaap:MortgageLoansOnRealEstateDescriptionTypeOfProperty, us-gaap:InvestmentType

us-gaap:LoansAndLeasesReceivableNetReportedAmount
us-gaap:ConsolidatedEntities

us-gaap:LoansReceivableFairValueDisclosure
us-gaap:ConsolidatedEntities
us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:NotesPayable

us-gaap:NotesPayableFairValueDisclosure
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:NotesReceivableGross
us-gaap:FinancingReceivablePortfolioSegment, afl:CreditRating
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanToValue

us-gaap:OperatingLeaseLiability

us-gaap:OtherAssets

us-gaap:OtherInvestments
us-gaap:ConsolidatedEntities
us-gaap:InvestmentType

us-gaap:OtherLiabilities

us-gaap:OtherPolicyholderFunds

us-gaap:PremiumsAndOtherReceivablesNet
us-gaap:ProductOrService
us-gaap:ReinsuranceRecoverables
us-gaap:ProductOrService, us-gaap:StatementBusinessSegments

us-gaap:SecuritiesLoanedAndSecuritiesSoldUnderAgreementToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement

us-gaap:SecuritiesLoanedIncludingNotSubjectToMasterNettingArrangementAndAssetsOtherThanSecuritiesTransferred
us-gaap:AssetsSoldUnderAgreementsToRepurchaseMaturityPeriods
us-gaap:AssetsSoldUnderAgreementsToRepurchaseMaturityPeriods, us-gaap:FinancialInstrument
us-gaap:FinancialInstrument

us-gaap:SecuritiesReceivedAsCollateral
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
us-gaap:AwardType, us-gaap:Vesting
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:TaxesPayableCurrentAndNoncurrent

us-gaap:TreasuryStockShares

us-gaap:UnearnedPremiums

Tables

  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:CommonStockValue █████████▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁135135135135135135135135135676767676767676767676767676767676767676767666666666666666666NA6666NANANA
us-gaap:CommonStockSharesIssued █████████▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁135013491349134913481347134713471346672672672671671670670670669669669668668667667667667666666665665664664664663663663663662662NA661661NANANA
us-gaap:CommonStockSharesOutstanding ▇▇▇▇▇████▁▁▁▁▁▁▁▁▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂718726735740746755763769775390393395398405408410415424427430433442450452454459465464466467468468467466466467467469471470469468467NANA
us-gaap:CommonStockSharesAuthorized ▁▁▁▁▁▁▁▁█▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁190019001900190019001900190019003800190019001900190019001900190019001900190019001900190019001900190019001900190019001900190019001900190019001900190019001900NA19001900NANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding 727NA743748755NA772777783NA397399404NA411414420NA431434439NA453455457NA467467469NA469468468NA467469472NA473472472NA469NA467
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic 724NA739745751NA767772778NA394396401NA408411418NA428431437NA451452454NA464465466NA467466465NA465466468NA469468467NA466NA466
us-gaap:EarningsPerShareBasic ▁▂▂▂▂▁▂▂▁█▂▂▂▃▂▂▂▂▂▂▂▂▂▂▂▂▂▃▃▂▃▂▂▂▂▁▁▁▂▂▂▁▁▁▂0.781.071.051.11.230.691.11.080.926.591.811.81.481.851.541.331.751.721.321.331.521.571.561.791.611.461.511.911.911.242.171.041.681.171.60.60.840.931.471.241.360.540.780.671.22
us-gaap:EarningsPerShareDiluted ▁▂▂▂▂▁▂▂▁█▂▂▂▃▂▂▂▂▂▂▂▂▂▂▂▂▂▃▃▂▃▂▂▂▂▁▁▁▂▂▂▁▁▁▂0.781.061.041.091.230.691.091.070.916.541.81.791.471.841.531.321.741.711.321.321.511.571.561.781.61.451.51.91.91.242.161.031.681.171.590.60.840.921.461.231.350.530.770.671.22
  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 ▃▅▄▄▅▃▄▅▄▄▄▄▄▆▅▄▄▄▃▄▄▄▅▅▅▅▅▆▆▇█▅▆▆▆▃▃▄▄▃▃▂▂▁▂516256035536551156575126557755895464542455065428530959555716543754515319504052875226551457365838564058015886604462086375684759026240597959875088511752945394498050654597452643134818
 us-gaap:Revenues us-gaap:StatementBusinessSegments afl:AflacJapan▃▃▄▃▃▂▃▄▄▂▃▃▃▅█▆▃▁▁▁▂▄▇██3803380839123792380237253775384438633705377237893761400042684055380936303594359036993839421942664231NA440243824605NA51404907NANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:StatementBusinessSegments afl:AflacUs█▇▆▇▇▆▆▆▅▅▅▄▄▄▄▄▄▂▃▂▃▁▁▂▁1687163916301641164016121616161016041575157515701569154315421538154415041520150115081463146814731455NA145314541438NA14121406NANANANANANANANANANANANANA
us-gaap:PremiumsEarnedNet ▄▄▄▄▄▄▄▄▄▃▄▄▄▄▅▄▄▃▃▃▃▃▅▅▅▅▅▅▆██▇▇▇▆▅▅▄▄▂▂▂▂▁▂468146714736468146914591463647064745458046484665463847785022482346024394438043644432448948414888485449105028501351845643566054675378532452104956487247854607433343484347416539954115
 us-gaap:PremiumsEarnedNet us-gaap:StatementBusinessSegments afl:AflacJapan▃▃▄▃▃▃▃▄▄▃▄▄▃▅█▆▃▁▁▁▂▃▇██3150317932413172318031133159322732633136320032223194336035963402317930102980297830783189353435783560NA373537173905NA4405421641484129401837703702363834563186320632113054NANA
 us-gaap:PremiumsEarnedNet us-gaap:StatementBusinessSegments afl:AflacUs█▇▇▇▇▆▆▆▆▅▅▄▅▃▄▄▄▂▃▂▃▁▁▂▁1483144314451459146114281426142614271391139313881390136113651362136713311345133113391301130613111294NA129312951280NA125412511231NA119211861169NANANANANANANANA
us-gaap:NetInvestmentIncome ▇▇█▆▆▆▆▆▅▅▅▄▄▅▆▅▄▄▄▄▄▅▆▆▅▅▅▅▅▆▆▆▇▆▆▄▄▄▄▃▃▂▂▁▂904886936878878874870862837812811802794813842822801792784777782808841843827826821813833876869845882858843784794789765727726717692668688
 us-gaap:NetInvestmentIncome us-gaap:StatementBusinessSegments afl:AflacUs▅▆▇▆▅▇█▇▅▇▆▆▆▅▅▅▄▄▄▃▂▁▁▁▁177180183180177183187182175182181180178177176176174171173168166161162161161NA159158157NA153153152NA147148144NANANANANANANANA
 us-gaap:OtherIncome us-gaap:StatementBusinessSegments afl:AflacJapan▇▇█▇█▅▅▇█▅▇▅▅▇▇▇▂▂▂▁▂▁▄▂▂11111211121010111210111010111111888787988NA81226NA2201613752065-128138NANA
 us-gaap:OtherIncome us-gaap:StatementBusinessSegments afl:AflacUs█▅▂▂▂▁▂▂▂▂▁▂▁▂▁▁▂▂▂▂▂▁▁▁▁271622213222121510322231010NA111NA522NA333NANANANANANANANA
us-gaap:PolicyholderBenefitsAndClaimsIncurredNet ▁▂▃▂▂▁▂▃▃▂▃▃▃▆█▆▃▁▁▁▁▃█▇▆2939298430272964296729253002303130423007308330393052326233783254302529302927293729523069335532933220NA348534113521NA3932376336463700351733103222326331022885285729572817NA2811
us-gaap:DeferredPolicyAcquisitionCostAmortizationExpense ▇▆▆▅█▆▆▅▆▃▂▃▄▃▃▃▄▃▁▁▃▂▂▃▄333315317309340313315303314284271283294283282284292276258255277267271276294NA256251283NA281269287288272264279278243229280250216NA250
us-gaap:SellingGeneralAndAdministrativeExpense ▆█▆▆▅▇▅▅▅▆▄▄▃▄▃▃▂▂▂▁▁▃▂▁▁779859769743719795730732733755686665614651625613563580554550530624566537534NA568529534NA595587564616558543508569505508481572487NA457
us-gaap:InterestExpense ▁▂▂▂▂▂▁▁▂▂▂▃▃▅▄▄▄▄▄▆█▇▇█▇55575757585853545659596162726566656567748379778180NA716971NA67625753524645443933332625NA8
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments ▃▅▅▆▇▃▆▆▅▅▆▅▄▆▅▄▆▆▄▄▅▆▆▇▆▅▅▇▇▄█▃▆▄▆▂▃▃▅▄▅▁▂▂▄720105810361109124272211461131982999107510458981153963834111711108648741013107510741238110410281069135813618801480741120283411054536006671055889974343549473871
us-gaap:IncomeTaxExpenseBenefit ▇▇▇▇▇▇▇▇▇▁██▇██▇██▇▇█████████▇█▇█▅█▇▇▇█▇█▇▇▇▇154276259292314197301299265-1585359332306402334286386380297301350372368428372353367469469299463258417-28836117320523036530833892186159302
us-gaap:NetIncomeLoss ▁▂▂▂▂▁▂▂▂█▂▂▁▂▁▁▂▂▁▁▁▂▂▂▂5667817778179285258458327172583716713592751629548731730567573663703706810732NA702889892NA1017483785546744280395437690581636NANANANA
 us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings566NA7778179285258458327172583716713592751629548731730567573663703706810732NANANA892NANANA785546744279395437690581636NANANANA
  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 ████▇▆▆▆▇▆▆▆▅▅▇▆▅▄▃▃▄▄▅▅▄▄▄▃▄▅▆▄▃▃▃▂▁▁▁15161615276815413715140014567914040613794114198614735613721713608313539413365012981914410114128712776611829611745511558112140111976712725312787112329212130711991811631312053813109413784012220911555211710211472010623210114510103997843NA8517884106NANANA
 us-gaap:Assets us-gaap:StatementBusinessSegments afl:AflacJapan████▇▆▆▇▇▆▆▆▅▅▇▇▅▃▃▃▃▃▅▅▄▄▄▃▄▆▇▅▄▄▄▂▂▂▁1269551275231291781283291230421183421161811202281251741144021136251134971120231078581216771205711071539764697158957399910298525107480109033104614102973101471987101030981136781207121068321001331023239990392290871068706183302NANA71639NANANA
 us-gaap:Assets us-gaap:StatementBusinessSegments afl:AflacUs▇███▇▆▆▆▇▇▇▇▇▆▇▇▆▅▆▅▆▅▄▄▄▃▃▃▃▃▃▂▁▁20526209452124720881199651910019585195881970619893203481999619817194532012619712194131853718687179511877018383173081697916772161121613515681161301612215785146301420713942NANANA12874NANANANANANANA
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us-gaap:CashAndCashEquivalentsAtCarryingValue ▆▇▆▄▆▆▅▅▆▅▇▆▆▇█▅▅▆▅▄▆▇▃▃▂▃▄▃▃▂▄▂▃▃▂▁▂▂▃▃▂▃▂4148489642163019389243373429384740803491492742644205485952703700344943503520310343634658266622521994254327492388259620412985213022102249186212912088212124342184161123231804NA1196
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us-gaap:StockholdersEquity ▇███▇▆▆▆▆▆▆▅▅▅▆▆▅▄▄▄▄▄▄▄▃▃▃▃▃▄▄▃▃▃▂▂▂▂▂▂▁▁2640228959294382824126049234622323423800242872459821977215032034020482227852255020021177081725517018186371834717853175581567614620146581369615535159781598514179136431350612714119811102311056111331003089878417NANANA
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us-gaap:CommonStockValue █████████▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁135135135135135135135135135676767676767676767676767676767676767676767666666666666666666NA6666NANANA
us-gaap:RetainedEarningsAccumulatedDeficit ████▇▇▇▇▇▆▆▅▅▅▅▅▅▄▄▄▄▄▄▃▃▃▃▃▂▂▂▂▂▂▁▁▁▁▁345993429133710331303251331788314613080930183298952748926942264002598125404249442456524007234512305222648221562162821089204471988519380188411811417387169691610815779155831519114587144481419413758NA1289012410NANANA
us-gaap:TreasuryStockValue ██▇▇▇▆▆▆▆▆▅▅▅▅▄▄▄▄▃▃▃▃▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁14854143951393513635132881278912422121131180511512111871095510767101729986979894138819859883808155756670686902681264135933593458295696561056195635564156135591555653865274NA53105316NANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▅▇█▇▆▄▃▄▅▅▅▅▄▄▆▆▄▂▂▂▄▃▃▃▂▁▁▁▃▄418866157251636444812151190928523685402835313401263226305364543229366255285072332197915001606307-563-461-84016512715NANANANANANANANANANANANANANANA
 us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss▆██▇▆▄▄▅▅▆▅▅▅▅▆▆▅▃▄▄▅▅▄▃▃▂▁▁▃▃60438548897080556561423442404836520659645437517344744805612064414684298632143384502646723402291519441035143-19819812570NANANANANANANANANANANANANANANA
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us-gaap:NetCashProvidedByUsedInOperatingActivities ▅▃▇▁▅▄▇▅▃▅▅▄▇▇▄▅▄█▆▆▅█▅▅▆141411921906813154413551852156912381532143114081757186712661523133120061667164314601973144515171615NANANA3832NANANA3556335631082211216721201846174512781758NANA1649
us-gaap:NetCashProvidedByUsedInInvestingActivities ▃██▄▅▇▃▅█▁▇▅▄▅█▆▄▆▇▄▂█▇▄▂-1716-225-219-1436-1291-410-1729-1244-199-2544-370-990-1527-1217-209-942-1487-814-517-1488-2078-97-550-1471-2123NANANA-3085NANANA-4436-3050-2745-3021-2013-2352-1904-1207-1969-1589NANA-1325
us-gaap:NetCashProvidedByUsedInFinancingActivities ▅▅▅▅▄▆▄▄▅▅▅▅▃▃█▄▃▅▄▁█▇▄▇▆-446-284-451-292-686-103-525-515-473-452-382-355-876-784446-515-766-361-739-1409322175-523233-32NANANA-156NANANA90179160-4-171-10527316-23353NANA-45
  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 ▅▃▇▁▅▄▇▅▃▅▅▄▇▇▄▅▄█▆▆▅█▅▅▆141411921906813154413551852156912381532143114081757186712661523133120061667164314601973144515171615NANANA3832NANANA3556335631082211216721201846174512781758NANA1649
us-gaap:NetIncomeLoss ▁▂▂▂▂▁▂▂▂█▂▂▁▂▁▁▂▂▁▁▁▂▂▂▂5667817778179285258458327172583716713592751629548731730567573663703706810732NA702889892NA1017483785546744280395437690581636NANANANA
 us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings566NA7778179285258458327172583716713592751629548731730567573663703706810732NANANA892NANANA785546744279395437690581636NANANANA
  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 ▃██▄▅▇▃▅█▁▇▅▄▅█▆▄▆▇▄▂█▇▄▂-1716-225-219-1436-1291-410-1729-1244-199-2544-370-990-1527-1217-209-942-1487-814-517-1488-2078-97-550-1471-2123NANANA-3085NANANA-4436-3050-2745-3021-2013-2352-1904-1207-1969-1589NANA-1325
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us-gaap:NetCashProvidedByUsedInFinancingActivities ▅▅▅▅▄▆▄▄▅▅▅▅▃▃█▄▃▅▄▁█▇▄▇▆-446-284-451-292-686-103-525-515-473-452-382-355-876-784446-515-766-361-739-1409322175-523233-32NANANA-156NANANA90179160-4-171-10527316-23353NANA-45
us-gaap:PaymentsOfDividends ▇▆▆▇▇▇██▇▃▁▁▂▂▁▁▂▂▁▁▂▂▁▁▁195192190194195198199201195170163162166166162163167167161163165168162161163NANANA159NANANA148148144125135140133131131131NANA131
us-gaap:PaymentsOfDividends ▇▆▆▇▇▇██▇▃▁▁▂▂▁▁▂▂▁▁▂▂▁▁▁195192190194195198199201195170163162166166162163167167161163165168162161163NANANA159NANANA148148144125135140133131131131NANA131
us-gaap:PaymentsForRepurchaseOfCommonStock ▆▆▄▅▆▅▄▄▄▄▃▂█▂▂▅█▃▃▃█▇▂▁▅449470310357490378322305296298240203610200208402612234233238610512176101421NANANA156NANANA104046381841160056NANA2
 us-gaap:PaymentsForRepurchaseOfCommonStock us-gaap:ShareRepurchaseProgram afl:ShareRepurchaseProgram▅▄▄▄▆▄▃▃▃▄▁▁█449400353357490377322305296400200200600NA200400600NA267233600NA175100415NANANANANANANANANANANANANANANANANANANANA
  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

Common Stock Value

us-gaap:CommonStockValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-03-312009-12-312008-12-31
Value135135135135135135135135135676767676767676767676767676767676767676767666666666666666666666666
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.10.10.10.10.10.10.00.00.00.10.10.00.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.00.10.10.10.10.10.10.10.10.10.10.1

Common Stock Par Or Stated Value Per Share

Common Stock Shares Issued

us-gaap:CommonStockSharesIssued



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-03-312009-12-312008-12-31
Value135013491349134913481347134713471346672672672671671670670670669669669668668667667667667666666665665664664664663663663663662662661661660
Percentage of CommonStockSharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Common Stock Shares Outstanding

us-gaap:CommonStockSharesOutstanding



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302008-12-31
Value718726735740746755763769775390393395398405408410415424427430433442450452454459465464466467468468467466466467467469471470469468467466
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Common Stock Shares Authorized

us-gaap:CommonStockSharesAuthorized



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-03-312009-12-312008-12-31
Value190019001900190019001900190019003800190019001900190019001900190019001900190019001900190019001900190019001900190019001900190019001900190019001900190019001900190019001900
Percentage of CommonStockSharesAuthorized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-03-31
Value727743748755772777783397399404411414420431434439453455457467467469469468468467469472473472472469467
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 End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-03-31
Value724739745751767772778394396401408411418428431437451452454464465466467466465465466468469468467466466
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
Value0.781.071.051.11.230.691.11.080.926.591.811.81.481.851.541.331.751.721.321.331.521.571.561.791.611.461.511.911.911.242.171.041.681.171.60.60.840.931.471.241.360.540.780.671.22
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
Value0.781.061.041.091.230.691.091.070.916.541.81.791.471.841.531.321.741.711.321.321.511.571.561.781.61.451.51.91.91.242.161.031.681.171.590.60.840.921.461.231.350.530.770.671.22
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Revenues

us-gaap:Revenues



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value516256035536551156575126557755895464542455065428530959555716543754515319504052875226551457365838564058015886604462086375684759026240597959875088511752945394498050654597452643134818
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementBusinessSegments

afl:AflacJapan



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value380338083912379238023725377538443863370537723789376140004268405538093630359435903699383942194266423144024382460551404907
Percentage of Revenues73.768.070.768.867.272.767.768.870.768.368.569.870.867.274.774.669.968.271.367.970.869.673.673.175.074.872.574.275.183.1
Percentage of Revenues73.768.070.768.867.272.767.768.870.768.368.569.870.867.274.774.669.968.271.367.970.869.673.673.175.074.872.574.275.183.1
Percentage of Revenues afl:AflacJapan100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

afl:AflacUs



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value168716391630164116401612161616101604157515751570156915431542153815441504152015011508146314681473145514531454143814121406
Percentage of Revenues32.729.329.429.829.031.429.028.829.429.028.628.929.625.927.028.328.328.330.228.428.926.525.625.225.824.724.123.220.623.8
Percentage of Revenues32.729.329.429.829.031.429.028.829.429.028.628.929.625.927.028.328.328.330.228.428.926.525.625.225.824.724.123.220.623.8
Percentage of Revenues afl:AflacUs100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllOtherSegments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value10410697959594828579-646972676970686566676526141110121114121010
Percentage of Revenues2.01.91.81.71.71.81.51.51.4-1.21.31.31.31.21.21.31.21.21.31.20.50.30.20.20.20.20.20.20.10.2
Percentage of Revenues2.01.91.81.71.71.81.51.51.4-1.21.31.31.31.21.21.31.21.21.31.20.50.30.20.20.20.20.20.20.10.2
Percentage of Revenues us-gaap:AllOtherSegments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Premiums Earned Net

us-gaap:PremiumsEarnedNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value468146714736468146914591463647064745458046484665463847785022482346024394438043644432448948414888485449105028501351845643566054675378532452104956487247854607433343484347416539954115
Percentage of PremiumsEarnedNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues90.783.485.584.982.989.683.184.286.884.484.485.987.480.287.988.784.482.686.982.584.881.484.483.786.184.685.482.983.588.582.792.686.289.087.097.495.290.485.487.085.894.692.092.685.4

us-gaap:StatementBusinessSegments

afl:AflacJapan



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-30
Value31503179324131723180311331593227326331363200322231943360359634023179301029802978307831893534357835603735371739054405421641484129401837703702363834563186320632113054
Percentage of PremiumsEarnedNet67.368.168.467.867.867.868.168.668.868.568.869.168.970.371.670.569.168.568.068.269.471.073.073.273.374.374.175.377.877.177.177.677.176.176.076.075.073.573.773.973.3
Percentage of Revenues61.056.758.557.656.260.756.657.759.757.858.159.460.256.462.962.658.356.659.156.358.957.861.661.363.163.561.562.964.371.466.569.167.174.172.368.764.164.063.369.867.5
Percentage of Revenues afl:AflacJapan82.883.582.883.683.683.683.783.984.584.684.885.084.984.084.383.983.582.982.983.083.283.183.883.984.184.884.884.885.785.90.00.00.00.00.00.00.00.00.00.00.0

afl:AflacUs



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-31
Value1483144314451459146114281426142614271391139313881390136113651362136713311345133113391301130613111294129312951280125412511231119211861169
Percentage of PremiumsEarnedNet31.730.930.531.231.131.130.830.330.130.430.029.830.028.527.228.229.730.330.730.530.229.027.026.826.725.725.824.722.222.922.922.923.924.0
Percentage of Revenues28.725.826.126.525.827.925.625.526.125.625.325.626.222.923.925.125.125.026.725.225.623.622.822.522.922.021.420.618.321.219.719.923.322.8
Percentage of Revenues afl:AflacUs87.988.088.788.989.188.688.288.689.088.388.488.488.688.288.588.688.588.588.588.788.888.989.089.088.989.089.189.088.889.00.00.00.00.0

Net Investment Income

us-gaap:NetInvestmentIncome



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value904886936878878874870862837812811802794813842822801792784777782808841843827826821813833876869845882858843784794789765727726717692668688
Percentage of NetInvestmentIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues17.515.816.915.915.517.115.615.415.315.014.714.815.013.714.715.114.714.915.614.715.014.714.714.414.714.213.913.513.413.712.714.314.114.414.115.415.514.914.214.614.315.615.315.514.3

us-gaap:StatementBusinessSegments

afl:AflacUs



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-31
Value177180183180177183187182175182181180178177176176174171173168166161162161161159158157153153152147148144
Percentage of NetInvestmentIncome19.620.319.620.520.220.921.521.120.922.422.322.422.421.820.921.421.721.622.121.621.219.919.319.119.519.419.418.817.618.117.217.418.918.1
Percentage of Revenues3.43.23.33.33.13.63.43.33.23.43.33.33.43.03.13.23.23.23.43.23.22.92.82.82.92.72.62.52.22.62.42.52.92.8
Percentage of Revenues afl:AflacUs10.511.011.211.010.811.411.611.310.911.611.511.511.311.511.411.411.311.411.411.211.011.011.010.911.110.910.910.910.810.90.00.00.00.0

Realized Investment Gains Losses

Other Income

us-gaap:StatementBusinessSegments

us-gaap:OtherIncome

afl:AflacJapan



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-30
Value11111211121010111210111010111111888787988812262201613752065-128138
Percentage of OtherIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.20.10.20.20.10.20.10.20.10.10.10.20.40.30.00.30.20.10.10.40.10.1-0.00.60.30.2
Percentage of Revenues afl:AflacJapan0.30.30.30.30.30.30.30.30.30.30.30.30.30.30.30.30.20.20.20.20.20.20.20.20.20.20.30.60.40.00.00.00.00.00.00.00.00.00.00.00.0

afl:AflacUs



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-31
Value271622213222121510322231010111522333
Percentage of OtherIncome245.5145.516.718.216.710.030.018.216.720.09.120.010.045.59.10.037.525.025.028.637.514.30.012.50.012.58.33.822.70.012.542.960.015.0
Percentage of Revenues0.50.30.00.00.00.00.10.00.00.00.00.00.00.10.00.00.10.00.00.00.10.00.00.00.00.00.00.00.10.00.00.10.10.1
Percentage of Revenues afl:AflacUs1.61.00.10.10.10.10.20.10.10.10.10.10.10.30.10.00.20.10.10.10.20.10.00.10.00.10.10.10.40.10.00.00.00.0

Policyholder Benefits And Claims Incurred Net

us-gaap:PolicyholderBenefitsAndClaimsIncurredNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-03-31
Value293929843027296429672925300230313042300730833039305232623378325430252930292729372952306933553293322034853411352139323763364637003517331032223263310228852857295728172811
Percentage of PolicyholderBenefitsAndClaimsIncurredNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues56.953.354.753.852.457.153.854.255.755.456.056.057.554.859.159.855.555.158.155.656.555.758.556.457.159.256.456.757.463.858.461.958.765.163.061.657.557.956.464.362.258.3

Deferred Policy Acquisition Cost Amortization Expense

us-gaap:DeferredPolicyAcquisitionCostAmortizationExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-03-31
Value333315317309340313315303314284271283294283282284292276258255277267271276294256251283281269287288272264279278243229280250216250
Percentage of DeferredPolicyAcquisitionCostAmortizationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues6.55.65.75.66.06.15.65.45.75.24.95.25.54.84.95.25.45.25.14.85.34.84.74.75.24.34.24.64.14.64.64.84.55.25.55.34.54.65.55.44.85.2

Selling General And Administrative Expense

us-gaap:SellingGeneralAndAdministrativeExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-03-31
Value779859769743719795730732733755686665614651625613563580554550530624566537534568529534595587564616558543508569505508481572487457
Percentage of SellingGeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues15.115.313.913.512.715.513.113.113.413.912.512.311.610.910.911.310.310.911.010.410.111.39.99.29.59.78.88.68.79.99.010.39.310.79.910.79.410.29.512.410.89.5

Interest Expense

us-gaap:InterestExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-03-31
Value55575757585853545659596162726566656567748379778180716971676257535246454439333326258
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues1.11.01.01.01.01.11.01.01.01.11.11.11.21.21.11.21.21.21.31.41.61.41.31.41.41.21.11.11.01.10.90.90.90.90.90.80.70.70.70.60.60.2

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value720105810361109124272211461131982999107510458981153963834111711108648741013107510741238110410281069135813618801480741120283411054536006671055889974343549473871
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues13.918.918.720.122.014.120.520.218.018.419.519.316.919.416.815.320.520.917.116.519.419.518.721.219.617.718.222.521.913.821.612.619.313.918.58.911.712.619.617.919.27.512.111.018.1

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value154276259292314197301299265-1585359332306402334286386380297301350372368428372353367469469299463258417-28836117320523036530833892186159302
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues3.04.94.75.35.63.85.45.34.8-29.26.56.15.86.85.85.37.17.15.95.76.76.76.47.36.66.16.27.87.64.76.84.46.7-4.86.03.44.04.36.86.26.72.04.13.76.3

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedDefinedBenefitPlansAdjustment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-31
Value-2-1-1-1-10-2-1-1-2-1-2-10-1-1000000010-2-1-2
Percentage of IncomeTaxExpenseBenefit-1.3-0.4-0.4-0.3-0.30.0-0.7-0.3-0.40.1-0.3-0.6-0.30.0-0.3-0.30.00.00.00.00.00.00.00.20.0-0.5-0.2-0.4
Percentage of Revenues-0.0-0.0-0.0-0.0-0.00.0-0.0-0.0-0.0-0.0-0.0-0.0-0.00.0-0.0-0.00.00.00.00.00.00.00.00.00.0-0.0-0.0-0.0
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-31
Value-15-1074-1510-71-13180-66-12-42728-482418139-41332419
Percentage of IncomeTaxExpenseBenefit-0.61.8-3.92.41.3-7.63.3-2.30.40.85.00.0-2.01.5-3.6-1.47.07.4-16.28.05.13.52.4-0.90.39.05.14.1
Percentage of Revenues-0.00.1-0.20.10.1-0.30.2-0.10.0-0.20.30.0-0.10.1-0.2-0.10.50.5-1.00.50.30.20.2-0.10.00.60.40.3
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Income Loss

us-gaap:NetIncomeLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value56678177781792852584583271725837167135927516295487317305675736637037068107327028898921017483785546744280395437690581636
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues11.013.914.014.816.410.215.214.913.147.613.013.111.212.611.010.113.413.711.210.812.712.712.313.913.011.914.714.414.98.212.69.112.45.57.78.312.811.712.6

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-31
Value-1210-351610-4724-24-2-2529-4-1214-22-85054-9043322317-524385338
Percentage of NetIncomeLoss-2.11.3-4.52.01.1-9.02.8-2.9-0.3-1.04.1-0.6-2.01.9-3.5-1.56.87.4-15.97.54.83.32.4-0.63.35.46.04.3
Percentage of Revenues-0.20.2-0.60.30.2-0.90.4-0.4-0.0-0.50.5-0.1-0.20.2-0.4-0.10.91.0-1.80.80.60.40.3-0.10.40.60.90.6
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedDefinedBenefitPlansAdjustment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-31
Value-6-2-4-2-3-5-3-3-3-3-3-3-20-1-1010-100-120-2-3-3
Percentage of NetIncomeLoss-1.1-0.3-0.5-0.2-0.3-1.0-0.4-0.4-0.4-0.1-0.4-0.4-0.30.0-0.2-0.20.00.10.0-0.20.00.0-0.10.20.0-0.3-0.3-0.3
Percentage of Revenues-0.1-0.0-0.1-0.0-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.00.0-0.0-0.00.00.00.0-0.00.00.0-0.00.00.0-0.0-0.0-0.0
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-31
Value-612-311813-4227-211-2232-1-1014-21-75053-9044322318-71614435
Percentage of NetIncomeLoss-1.11.5-4.02.21.4-8.03.2-2.50.1-0.94.5-0.1-1.71.9-3.3-1.36.87.3-15.97.74.83.32.5-0.90.18.74.93.9
Percentage of Revenues-0.10.2-0.60.30.2-0.80.5-0.40.0-0.40.6-0.0-0.20.2-0.4-0.10.91.0-1.80.80.60.40.3-0.10.01.00.70.6
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value5667778179285258458327172583716713592751629548731730567573663703706810732892785546744279395437690581636
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.099.6100.0100.0100.0100.0100.0
Percentage of Revenues11.014.014.816.410.215.214.913.147.613.013.111.212.611.010.113.413.711.210.812.712.712.313.913.014.412.69.112.45.57.78.312.811.712.6
Percentage of Revenues us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets

us-gaap:Assets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-03-312009-12-312008-12-31
Value15161615276815413715140014567914040613794114198614735613721713608313539413365012981914410114128712776611829611745511558112140111976712725312787112329212130711991811631312053813109413784012220911555211710211472010623210114510103997843851788410679331
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementBusinessSegments

afl:AflacJapan



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302009-12-31
Value126955127523129178128329123042118342116181120228125174114402113625113497112023107858121677120571107153976469715895739991029852510748010903310461410297310147198710103098113678120712106832100133102323999039229087106870618330271639
Percentage of Assets83.783.583.884.884.584.384.284.784.983.483.583.883.883.184.485.383.982.582.782.881.682.384.585.384.984.984.684.985.586.787.687.486.787.487.186.986.186.285.185.2
Percentage of Assets83.783.583.884.884.584.384.284.784.983.483.583.883.883.184.485.383.982.582.782.881.682.384.585.384.984.984.684.985.586.787.687.486.787.487.186.986.186.285.185.2
Percentage of Assets afl:AflacJapan100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

afl:AflacUs



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-31
Value2052620945212472088119965191001958519588197061989320348199961981719453201261971219413185371868717951187701838317308169791677216112161351568116130161221578514630142071394212874
Percentage of Assets13.513.713.813.813.713.614.213.813.414.515.014.814.815.014.014.015.215.715.915.515.515.313.613.313.613.313.513.513.412.311.512.012.311.912.7
Percentage of Assets13.513.713.813.813.713.614.213.813.414.515.014.814.815.014.014.015.215.715.915.515.515.313.613.313.613.313.513.513.412.311.512.012.311.912.7
Percentage of Assets afl:AflacUs100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllOtherSegments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value413543003712219026722964217521702476547513471338270270248216188176157144128141154154155153150152154144162159160170162155
Percentage of Assets2.72.82.41.41.82.11.61.51.70.40.40.30.30.20.20.20.20.20.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.20.2
Percentage of Assets2.72.82.41.41.82.11.61.51.70.40.40.30.30.20.20.20.20.20.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.20.2
Percentage of Assets us-gaap:AllOtherSegments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-03-312009-12-312008-12-31
Value1252141238091246991231591196301169441147071181861230691126191141061138911133101093371213161187371077451005881002009856310276410142010940011031310761610668710526010261710500311511612185510803010190910359610200694251901228998386710761917568972692
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets82.681.080.981.382.183.383.283.283.582.183.984.184.884.284.284.084.385.085.385.384.684.786.086.387.387.987.888.287.187.888.488.488.288.588.988.789.189.188.689.490.091.6

us-gaap:ConsolidatedEntities

us-gaap:VariableInterestEntityPrimaryBeneficiary



Period End2020-03-312019-12-31
Value235126
Percentage of Liabilities0.20.1
Percentage of Assets0.20.1
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary0.00.0

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-03-312009-12-312008-12-31
Value15161615276815413715140014567914040613794114198614735613721713608313539413365012981914410114128712776611829611745511558112140111976712725312787112329212130711991811631312053813109413784012220911555211710211472010623210114510103997843851788410679331
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value26402289592943828241260492346223234238002428724598219772150320340204822278522550200211770817255170181863718347178531755815676146201465813696155351597815985141791364313506127141198111023110561113310030898784176639
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets17.419.019.118.717.916.716.816.816.517.916.115.915.215.815.816.015.715.014.714.715.415.314.013.712.712.112.211.812.912.211.611.611.811.511.111.310.910.911.40.010.610.08.4

us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value418866157251636444812151190928523685402835313401263226305364543229366255285072332197915001606307-563-461-8401651271530872171200020901682154771586212946299329-582934
Percentage of StockholdersEquity15.922.824.622.517.29.28.212.015.216.416.115.812.912.823.524.114.73.53.13.012.510.88.49.12.0-3.9-3.1-6.110.617.019.315.314.715.513.212.96.57.811.66.31.00.3-8.80.0
Percentage of Assets2.84.34.74.23.11.51.42.02.52.92.62.52.02.03.73.82.30.50.40.41.91.71.21.30.2-0.5-0.4-0.71.42.12.21.81.71.81.51.50.70.91.30.00.10.0-0.70.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value23342313227722472208217721512117208921202077204820081976193619051866182818071772174517111726169816671644160515621532150514731453143314081388137213501320128912711248122811841054
Percentage of StockholdersEquity8.88.07.78.08.59.39.38.98.68.69.59.59.99.68.58.49.310.310.510.49.49.39.79.710.611.210.911.49.99.49.210.210.510.410.911.512.211.911.612.713.914.617.80.0
Percentage of Assets1.51.51.51.51.51.61.61.51.41.51.51.51.51.51.31.31.51.51.51.51.41.41.41.31.41.41.31.31.31.11.11.21.21.21.21.31.31.31.30.01.51.51.50.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value1351351351351351351351351356767676767676767676767676767676767676767676666666666666666666666666666
Percentage of StockholdersEquity0.50.50.50.50.50.60.60.60.60.30.30.30.30.30.30.30.30.40.40.40.40.40.40.40.40.50.50.50.40.40.40.50.50.50.50.60.60.60.60.70.70.81.00.0
Percentage of Assets0.10.10.10.10.10.10.10.10.10.00.00.00.10.10.00.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.00.10.10.10.10.10.10.10.10.00.10.10.10.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value3459934291337103313032513317883146130809301832989527489269422640025981254042494424565240072345123052226482215621628210892044719885193801884118114173871696916108157791558315191145871444814194137581334012890124101130610637
Percentage of StockholdersEquity131.0118.4114.5117.3124.8135.5135.4129.4124.3121.5125.1125.3129.8126.8111.5110.6122.7135.6135.9135.5121.5120.8121.1120.1130.4136.0132.2137.6116.6108.8106.2113.6115.7115.4119.5121.8131.1128.4123.6133.0143.4147.4170.30.0
Percentage of Assets22.822.421.921.922.322.622.821.720.521.820.219.919.820.017.617.719.220.320.019.918.718.517.016.516.616.416.216.215.013.312.313.213.713.313.213.714.314.014.10.015.114.814.30.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value-14854-14395-13935-13635-13288-12789-12422-12113-11805-11512-11187-10955-10767-10172-9986-9798-9413-8819-8598-8380-8155-7566-7068-6902-6812-6413-5933-5934-5829-5696-5610-5619-5635-5641-5613-5591-5556-5386-5274-5276-5310-5316-5335-3896
Percentage of StockholdersEquity-56.3-49.7-47.3-48.3-51.0-54.5-53.5-50.9-48.6-46.8-50.9-50.9-52.9-49.7-43.8-43.5-47.0-49.8-49.8-49.2-43.8-41.2-39.6-39.3-43.5-43.9-40.5-43.3-37.5-35.6-35.1-39.6-41.3-41.8-44.1-46.7-50.4-48.7-47.4-52.6-59.1-63.2-80.40.0
Percentage of Assets-9.8-9.4-9.0-9.0-9.1-9.1-9.0-8.5-8.0-8.4-8.2-8.1-8.1-7.8-6.9-6.9-7.4-7.5-7.3-7.3-6.7-6.3-5.6-5.4-5.5-5.3-4.9-5.1-4.8-4.3-4.1-4.6-4.9-4.8-4.9-5.3-5.5-5.3-5.40.0-6.2-6.3-6.70.0
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-03-312008-12-312007-12-312006-12-31
Value4148489642163019389243373429384740803491492742644205485952703700344943503520310343634658266622521994254327492388259620412985213022102249186212912088212124342184161123231804119694115631203
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.73.22.72.02.73.12.52.72.82.53.63.13.13.73.72.62.73.73.02.73.63.92.11.81.62.12.32.12.21.62.21.71.91.91.61.22.12.12.50.01.92.80.00.01.20.00.0

Land

Property Plant And Equipment Gross

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-03-312009-12-312008-12-31
Value586581562562559443435448448434439442444433476467443427430422428429449482481481510510527564625603591617626611604620610583593597
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.40.40.40.40.30.30.30.30.30.30.30.30.30.30.30.30.40.40.40.40.40.40.40.40.40.40.40.40.40.50.50.50.50.50.60.60.60.60.70.70.8

Investments In Affiliates Subsidiaries Associates And Joint Ventures

Deferred Tax Assets Liabilities Net

Taxes Payable Current

Stockholders Equity

us-gaap:StockholdersEquity



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value26402289592943828241260492346223234238002428724598219772150320340204822278522550200211770817255170181863718347178531755815676146201465813696155351597815985141791364313506127141198111023110561113310030898784176639
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets17.419.019.118.717.916.716.816.816.517.916.115.915.215.815.816.015.715.014.714.715.415.314.013.712.712.112.211.812.912.211.611.611.811.511.111.310.910.911.40.010.610.08.4

us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value418866157251636444812151190928523685402835313401263226305364543229366255285072332197915001606307-563-461-8401651271530872171200020901682154771586212946299329-582934
Percentage of StockholdersEquity15.922.824.622.517.29.28.212.015.216.416.115.812.912.823.524.114.73.53.13.012.510.88.49.12.0-3.9-3.1-6.110.617.019.315.314.715.513.212.96.57.811.66.31.00.3-8.80.0
Percentage of Assets2.84.34.74.23.11.51.42.02.52.92.62.52.02.03.73.82.30.50.40.41.91.71.21.30.2-0.5-0.4-0.71.42.12.21.81.71.81.51.50.70.91.30.00.10.0-0.70.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value23342313227722472208217721512117208921202077204820081976193619051866182818071772174517111726169816671644160515621532150514731453143314081388137213501320128912711248122811841054
Percentage of StockholdersEquity8.88.07.78.08.59.39.38.98.68.69.59.59.99.68.58.49.310.310.510.49.49.39.79.710.611.210.911.49.99.49.210.210.510.410.911.512.211.911.612.713.914.617.80.0
Percentage of Assets1.51.51.51.51.51.61.61.51.41.51.51.51.51.51.31.31.51.51.51.51.41.41.41.31.41.41.31.31.31.11.11.21.21.21.21.31.31.31.30.01.51.51.50.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value1351351351351351351351351356767676767676767676767676767676767676767676666666666666666666666666666
Percentage of StockholdersEquity0.50.50.50.50.50.60.60.60.60.30.30.30.30.30.30.30.30.40.40.40.40.40.40.40.40.50.50.50.40.40.40.50.50.50.50.60.60.60.60.70.70.81.00.0
Percentage of Assets0.10.10.10.10.10.10.10.10.10.00.00.00.10.10.00.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.00.10.10.10.10.10.10.10.10.00.10.10.10.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value3459934291337103313032513317883146130809301832989527489269422640025981254042494424565240072345123052226482215621628210892044719885193801884118114173871696916108157791558315191145871444814194137581334012890124101130610637
Percentage of StockholdersEquity131.0118.4114.5117.3124.8135.5135.4129.4124.3121.5125.1125.3129.8126.8111.5110.6122.7135.6135.9135.5121.5120.8121.1120.1130.4136.0132.2137.6116.6108.8106.2113.6115.7115.4119.5121.8131.1128.4123.6133.0143.4147.4170.30.0
Percentage of Assets22.822.421.921.922.322.622.821.720.521.820.219.919.820.017.617.719.220.320.019.918.718.517.016.516.616.416.216.215.013.312.313.213.713.313.213.714.314.014.10.015.114.814.30.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value-14854-14395-13935-13635-13288-12789-12422-12113-11805-11512-11187-10955-10767-10172-9986-9798-9413-8819-8598-8380-8155-7566-7068-6902-6812-6413-5933-5934-5829-5696-5610-5619-5635-5641-5613-5591-5556-5386-5274-5276-5310-5316-5335-3896
Percentage of StockholdersEquity-56.3-49.7-47.3-48.3-51.0-54.5-53.5-50.9-48.6-46.8-50.9-50.9-52.9-49.7-43.8-43.5-47.0-49.8-49.8-49.2-43.8-41.2-39.6-39.3-43.5-43.9-40.5-43.3-37.5-35.6-35.1-39.6-41.3-41.8-44.1-46.7-50.4-48.7-47.4-52.6-59.1-63.2-80.40.0
Percentage of Assets-9.8-9.4-9.0-9.0-9.1-9.1-9.0-8.5-8.0-8.4-8.2-8.1-8.1-7.8-6.9-6.9-7.4-7.5-7.3-7.3-6.7-6.3-5.6-5.4-5.5-5.3-4.9-5.1-4.8-4.3-4.1-4.6-4.9-4.8-4.9-5.3-5.5-5.3-5.40.0-6.2-6.3-6.70.0
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-03-312009-12-312008-12-31
Value135135135135135135135135135676767676767676767676767676767676767676767666666666666666666666666
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.10.10.10.10.10.10.00.00.00.10.10.00.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.00.10.10.10.10.10.10.10.10.10.10.1

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-03-312009-12-312008-12-31
Value345993429133710331303251331788314613080930183298952748926942264002598125404249442456524007234512305222648221562162821089204471988519380188411811417387169691610815779155831519114587144481419413758128901241011306
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets22.822.421.921.922.322.622.821.720.521.820.219.919.820.017.617.719.220.320.019.918.718.517.016.516.616.416.216.215.013.312.313.213.713.313.213.714.314.014.115.114.814.3

Treasury Stock Value

us-gaap:TreasuryStockValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-03-312009-12-312008-12-31
Value14854143951393513635132881278912422121131180511512111871095510767101729986979894138819859883808155756670686902681264135933593458295696561056195635564156135591555653865274531053165335
Percentage of TreasuryStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.89.49.09.09.19.19.08.58.08.48.28.18.17.86.96.97.47.57.37.36.76.35.65.45.55.34.95.14.84.34.14.64.94.84.95.35.55.35.46.26.36.7

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value418866157251636444812151190928523685402835313401263226305364543229366255285072332197915001606307-563-461-84016512715
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.84.34.74.23.11.51.42.02.52.92.62.52.02.03.73.82.30.50.40.41.91.71.21.30.2-0.5-0.4-0.71.42.1

us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value-277-277-207-209-206-212-194-195-197-163-168-169-170-168-143-143-140-139-125-125-126-126-80-82-82-81-178-178-180-183
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax-6.6-4.2-2.9-3.3-4.6-9.9-10.2-6.8-5.3-4.0-4.8-5.0-6.5-6.4-2.7-2.6-4.8-22.2-23.7-24.7-5.4-6.4-5.3-5.1-26.714.438.621.2-10.9-6.7
Percentage of Assets-0.2-0.2-0.1-0.1-0.1-0.2-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.2-0.1-0.1
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value-35-33-33-27-26-24-24-23-21-23-23-23-22-24-26
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax-0.8-0.5-0.5-0.4-0.6-1.1-1.3-0.8-0.6-0.6-0.7-0.7-0.8-0.9-4.2
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
Percentage of Assets us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value60438548897080556561423442404836520659645437517344744805612064414684298632143384502646723402291519441035143-19819812570
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax144.3129.2123.7126.6146.4196.8222.1169.6141.3148.1154.0152.1170.0182.7114.1118.6159.5477.8608.7667.5215.5236.1226.8181.5633.2-183.8-31.023.6120.094.7
Percentage of Assets4.05.65.85.34.53.03.13.43.54.34.03.83.33.74.24.63.72.52.72.94.13.92.72.31.60.90.1-0.21.62.0
Percentage of Assets us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedTranslationAdjustment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value-1543-1623-1479-1455-1848-1847-2113-1766-1303-1750-1715-1580-1650-1983-594-847-1584-2196-2533-2725-2540-2541-1805-1216-1542-1505-418-453-141333
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax-36.8-24.5-20.4-22.9-41.2-85.9-110.7-61.9-35.4-43.4-48.6-46.5-62.7-75.4-11.1-15.6-54.0-351.4-479.7-537.5-108.9-128.4-120.3-75.7-502.3267.390.753.9-8.512.3
Percentage of Assets-1.0-1.1-1.0-1.0-1.3-1.3-1.5-1.2-0.9-1.3-1.3-1.2-1.2-1.5-0.4-0.6-1.2-1.9-2.2-2.4-2.1-2.1-1.4-1.0-1.3-1.2-0.3-0.4-0.10.3
Percentage of Assets us-gaap:AccumulatedTranslationAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-03-31
Value141411921906813154413551852156912381532143114081757186712661523133120061667164314601973144515171615383235563356310822112167212018461745127817581649
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues27.421.334.414.827.326.433.228.122.728.226.025.933.131.422.128.024.437.733.131.127.935.825.226.028.661.757.056.151.943.542.340.034.235.025.238.234.2

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-03-31
Value-1716-225-219-1436-1291-410-1729-1244-199-2544-370-990-1527-1217-209-942-1487-814-517-1488-2078-97-550-1471-2123-3085-4436-3050-2745-3021-2013-2352-1904-1207-1969-1589-1325
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-33.2-4.0-4.0-26.1-22.8-8.0-31.0-22.3-3.6-46.9-6.7-18.2-28.8-20.4-3.7-17.3-27.3-15.3-10.3-28.1-39.8-1.8-9.6-25.2-37.6-49.7-71.1-51.0-45.8-59.4-39.3-44.4-35.3-24.2-38.9-34.6-27.5

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-03-31
Value-446-284-451-292-686-103-525-515-473-452-382-355-876-784446-515-766-361-739-1409322175-523233-32-15690179160-4-171-10527316-23353-45
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-8.6-5.1-8.1-5.3-12.1-2.0-9.4-9.2-8.7-8.3-6.9-6.5-16.5-13.27.8-9.5-14.1-6.8-14.7-26.76.23.2-9.14.0-0.6-2.514.41.32.7-0.1-3.3-2.05.10.3-0.57.7-0.9

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-03-31
Value141411921906813154413551852156912381532143114081757186712661523133120061667164314601973144515171615383235563356310822112167212018461745127817581649
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues27.421.334.414.827.326.433.228.122.728.226.025.933.131.422.128.024.437.733.131.127.935.825.226.028.661.757.056.151.943.542.340.034.235.025.238.234.2

Net Income Loss

us-gaap:NetIncomeLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value56678177781792852584583271725837167135927516295487317305675736637037068107327028898921017483785546744280395437690581636
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues11.013.914.014.816.410.215.214.913.147.613.013.111.212.611.010.113.413.711.210.812.712.712.313.913.011.914.714.414.98.212.69.112.45.57.78.312.811.712.6

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-31
Value-1210-351610-4724-24-2-2529-4-1214-22-85054-9043322317-524385338
Percentage of NetIncomeLoss-2.11.3-4.52.01.1-9.02.8-2.9-0.3-1.04.1-0.6-2.01.9-3.5-1.56.87.4-15.97.54.83.32.4-0.63.35.46.04.3
Percentage of Revenues-0.20.2-0.60.30.2-0.90.4-0.4-0.0-0.50.5-0.1-0.20.2-0.4-0.10.91.0-1.80.80.60.40.3-0.10.40.60.90.6
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedDefinedBenefitPlansAdjustment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-31
Value-6-2-4-2-3-5-3-3-3-3-3-3-20-1-1010-100-120-2-3-3
Percentage of NetIncomeLoss-1.1-0.3-0.5-0.2-0.3-1.0-0.4-0.4-0.4-0.1-0.4-0.4-0.30.0-0.2-0.20.00.10.0-0.20.00.0-0.10.20.0-0.3-0.3-0.3
Percentage of Revenues-0.1-0.0-0.1-0.0-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.00.0-0.0-0.00.00.00.0-0.00.00.0-0.00.00.0-0.0-0.0-0.0
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-31
Value-612-311813-4227-211-2232-1-1014-21-75053-9044322318-71614435
Percentage of NetIncomeLoss-1.11.5-4.02.21.4-8.03.2-2.50.1-0.94.5-0.1-1.71.9-3.3-1.36.87.3-15.97.74.83.32.5-0.90.18.74.93.9
Percentage of Revenues-0.10.2-0.60.30.2-0.80.5-0.40.0-0.40.6-0.0-0.20.2-0.4-0.10.91.0-1.80.80.60.40.3-0.10.01.00.70.6
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value5667778179285258458327172583716713592751629548731730567573663703706810732892785546744279395437690581636
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.099.6100.0100.0100.0100.0100.0
Percentage of Revenues11.014.014.816.410.215.214.913.147.613.013.111.212.611.010.113.413.711.210.812.712.712.313.913.014.412.69.112.45.57.78.312.811.712.6
Percentage of Revenues us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-03-31
Value-1716-225-219-1436-1291-410-1729-1244-199-2544-370-990-1527-1217-209-942-1487-814-517-1488-2078-97-550-1471-2123-3085-4436-3050-2745-3021-2013-2352-1904-1207-1969-1589-1325
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-33.2-4.0-4.0-26.1-22.8-8.0-31.0-22.3-3.6-46.9-6.7-18.2-28.8-20.4-3.7-17.3-27.3-15.3-10.3-28.1-39.8-1.8-9.6-25.2-37.6-49.7-71.1-51.0-45.8-59.4-39.3-44.4-35.3-24.2-38.9-34.6-27.5

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-03-31
Value-446-284-451-292-686-103-525-515-473-452-382-355-876-784446-515-766-361-739-1409322175-523233-32-15690179160-4-171-10527316-23353-45
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-8.6-5.1-8.1-5.3-12.1-2.0-9.4-9.2-8.7-8.3-6.9-6.5-16.5-13.27.8-9.5-14.1-6.8-14.7-26.76.23.2-9.14.0-0.6-2.514.41.32.7-0.1-3.3-2.05.10.3-0.57.7-0.9

Repayments Of Long Term Debt

Payments Of Dividends

us-gaap:PaymentsOfDividends



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-03-31
Value195192190194195198199201195170163162166166162163167167161163165168162161163159148148144125135140133131131131131
Percentage of PaymentsOfDividends100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Payments Of Dividends

us-gaap:PaymentsOfDividends



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-03-31
Value195192190194195198199201195170163162166166162163167167161163165168162161163159148148144125135140133131131131131
Percentage of PaymentsOfDividends100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Payments For Repurchase Of Common Stock

us-gaap:PaymentsForRepurchaseOfCommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-03-31
Value4494703103574903783223052962982402036102002084026122342332386105121761014211561040463818411600562
Percentage of PaymentsForRepurchaseOfCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0

us-gaap:ShareRepurchaseProgram

afl:ShareRepurchaseProgram



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-31
Value449400353357490377322305296400200200600200400600267233600175100415
Percentage of PaymentsForRepurchaseOfCommonStock100.085.1113.9100.0100.099.7100.0100.0100.0134.283.398.598.496.299.598.0114.697.998.499.499.098.6

Repayments Of Long Term Debt

Debt Instrument Interest Rate Stated Percentage

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

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

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

us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod

us-gaap:RestrictedStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1000000000000
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AwardType, us-gaap:Vesting

us-gaap:RestrictedStock, afl:PerformanceBasedVestingCondition



Period End2020-02-292019-02-282018-02-282017-02-28
Value409000.0399000.0432000.0253000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod0.00.00.00.0

Deferred Tax Liabilities

Deferred Tax Assets Net

Unrecognized Tax Benefits

Deferred Tax Assets Valuation Allowance

Cash And Cash Equivalents Period Increase Decrease

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents



Period End2020-03-312019-12-312019-03-312018-12-31
Value4148489638924337
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0

afl:AcquisitionAndOperatingCostAndExpenses



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-03-31
Value150315621473143814481479142914271440141813481344135915401375134913091279124914761261137013071307131613321275132614351398139214451365132512951364123712061234129811601136
Percentage of AcquisitionAndOperatingCostAndExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementBusinessSegments

afl:Adjustednetinvestmentincome

afl:AflacJapan



Period End2020-03-312019-03-31
Value642610
Percentage of Adjustednetinvestmentincome100.0100.0

afl:BlendedU.S.andJapanStatutoryTaxRate



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.2140.00.250.260.250.00.260.260.27
Percentage of BlendedU.S.andJapanStatutoryTaxRate100.00.0100.0100.0100.00.0100.0100.0100.0

afl:CapitalizationofDeferredPolicyAcquisitionCosts



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value325395345355357422366367349391384358335
Percentage of CapitalizationofDeferredPolicyAcquisitionCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementBusinessSegments

afl:DerivativeHedgeIncome

us-gaap:AllOtherSegments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value292821202018972
Percentage of DerivativeHedgeIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0

afl:Derivativeandnonderivativehedginginstrumentsgainlossrecognizedinothercomprehensiveincomeeffectiveportionbeforetax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value-239213-55-3-393453-86039-471471-112-7813-4340-311734-18-25-28-4662-19-28
Percentage of Derivativeandnonderivativehedginginstrumentsgainlossrecognizedinothercomprehensiveincomeeffectiveportionbeforetax100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductOrService

afl:EffectOfExchangeRateChangesOnUnpaidPolicyClaimsLiability

us-gaap:AccidentAndHealthInsuranceSegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value12-34-365052-59-91142-4-14480-31542198136
Percentage of EffectOfExchangeRateChangesOnUnpaidPolicyClaimsLiability100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

afl:Effectofforeigncurrencytranslationonaftertaxadjustedearnings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value91315-4-81-1721-10-29-95
Percentage of Effectofforeigncurrencytranslationonaftertaxadjustedearnings100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

afl:Foreigncurrencytranslationgainslossesonremeasurementofmonetaryassets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value-7711921-200-2-133159192-2282317-1
Percentage of Foreigncurrencytranslationgainslossesonremeasurementofmonetaryassets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementBusinessSegments

afl:GainLossOnChangeInFairValueOfDerivativeInterestRateComponentOperating

us-gaap:AllOtherSegments



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value161616171717
Percentage of GainLossOnChangeInFairValueOfDerivativeInterestRateComponentOperating100.0100.0100.0100.0100.0100.0

afl:GainLossOnInvestmentsExcludedFromAdjustedEarnings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-44834-120-34103-3228835-985771-19-109
Percentage of GainLossOnInvestmentsExcludedFromAdjustedEarnings100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

afl:GainLossOnInvestmentsExcludedFromAdjustedRevenue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-43250-103-17120-30510450-827690-1-88
Percentage of GainLossOnInvestmentsExcludedFromAdjustedRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

afl:Incometaxesapplicabletopretaxadjustedearnings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value301267293297291267270303289339338342351
Percentage of Incometaxesapplicabletopretaxadjustedearnings100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

afl:IncreaseDecreaseInCollateralHeldForSecuritiesLendingAndDerivatives



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-1160218-649481-976106516971468-4578-68144783-65466-175336189-134031504-5034631-44723812677-6643835-12996070
Percentage of IncreaseDecreaseInCollateralHeldForSecuritiesLendingAndDerivatives100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

afl:MiddleMarketLoanCommitmentIncreaseDuringPeriod



Period End2020-03-31
Value2200
Percentage of MiddleMarketLoanCommitmentIncreaseDuringPeriod100.0

us-gaap:StatementBusinessSegments

afl:Netinterestcashflowsfromderivatives

afl:AflacJapan



Period End2020-03-312019-12-312019-09-302019-03-31
Value-61-4-7
Percentage of Netinterestcashflowsfromderivatives100.0100.0100.0100.0

us-gaap:StatementEquityComponents

afl:OtherAdditionsDuringPeriodShares

us-gaap:TreasuryStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value508000.03000.015000.013000.0561000.031000.033000.013000.0315000.074000.0265000.026000.0144000.01000.0105000.035000.0189000.06000.027000.052000.0162000.025000.010000.012000.0110000.0124000.0199000.025000.02000.04000.0151000.094000.03000.01000.094000.0123000.0
Percentage of OtherAdditionsDuringPeriodShares100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

afl:OtherComprehensiveIncomeReclassificationAdjustmentForSaleAndWriteDownOfSecuritiesIncludedInNetIncomeBeforeTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-03-31
Value7-1741-25-1757-3728-235-50116-203311-77-81138-68-50-36-2711-2-94-68-58-213368-129-84173-716-527-366-614-63-472-349-12
Percentage of OtherComprehensiveIncomeReclassificationAdjustmentForSaleAndWriteDownOfSecuritiesIncludedInNetIncomeBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-312019-03-31
Value-717
Percentage of OtherComprehensiveIncomeReclassificationAdjustmentForSaleAndWriteDownOfSecuritiesIncludedInNetIncomeBeforeTax-100.0-100.0

afl:Otherincomeloss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value40341718171615181617171717227-2-21-2519-1019-1743855
Percentage of Otherincomeloss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

afl:PaymentsForProceedsFromOtherInvestmentsNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value361-2966174442278-3950125
Percentage of PaymentsForProceedsFromOtherInvestmentsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0

afl:PaymentstoAcquireEquitySecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-03-31
Value6261403015110210567166157
Percentage of PaymentstoAcquireEquitySecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementBusinessSegments

afl:PercentageOfCompanyRevenue

afl:AflacJapan



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.670.00.0099999999999998980.00.680.010000000000000009-0.010000000000000009-0.0100000000000000090.710.0100000000000000090.00.00.69-0.030000000000000027-0.0100000000000000090.0100000000000000090.740.00.00.00.7-0.020000000000000018-0.0100000000000000090.00.750.750.770.00.020000000000000018-0.0100000000000000090.740.00.00.0100000000000000090.74
Percentage of PercentageOfCompanyRevenue100.00.0100.00.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.00.00.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.00.00.0100.0100.0

afl:ProceedsFromSaleOfEquitySecuritiesFVNI



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value38041611536015359157
Percentage of ProceedsFromSaleOfEquitySecuritiesFVNI100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Currency, us-gaap:FinancialInstrument, us-gaap:InvestmentType

afl:SecuritiesContinuousUnrealizedLossPositionLessthan12monthsAggregateLosses

currency:JPY, us-gaap:FixedMaturities, afl:BanksAndFinancialInstitutions



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value406-17-12-3114988120
Percentage of SecuritiesContinuousUnrealizedLossPositionLessthan12monthsAggregateLosses100.0100.0100.0100.0100.0100.0100.0

currency:JPY, us-gaap:FixedMaturities, us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value357303254038
Percentage of SecuritiesContinuousUnrealizedLossPositionLessthan12monthsAggregateLosses87.9-17.6-0.0-9.716.845.531.7

currency:JPY, us-gaap:FixedMaturities, us-gaap:ForeignGovernmentDebtSecurities



Period End2020-03-312019-03-312018-12-312018-09-30
Value142-286426
Percentage of SecuritiesContinuousUnrealizedLossPositionLessthan12monthsAggregateLosses3.41.3-325.0355.0

currency:JPY, us-gaap:FixedMaturities, us-gaap:MunicipalBonds



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value020-23-817
Percentage of SecuritiesContinuousUnrealizedLossPositionLessthan12monthsAggregateLosses0.0-11.8-0.06.52.0-9.114.2

currency:JPY, us-gaap:FixedMaturities, us-gaap:PublicUtilityBonds



Period End2020-03-312018-12-312018-09-30
Value9329
Percentage of SecuritiesContinuousUnrealizedLossPositionLessthan12monthsAggregateLosses22.92.37.5

currency:JPY, us-gaap:FixedMaturities, us-gaap:SovereignDebt



Period End2020-03-312018-09-30
Value27-29
Percentage of SecuritiesContinuousUnrealizedLossPositionLessthan12monthsAggregateLosses6.7-24.2

currency:USD, us-gaap:FixedMaturities, afl:BanksAndFinancialInstitutions



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value13-50-5101-2
Percentage of SecuritiesContinuousUnrealizedLossPositionLessthan12monthsAggregateLosses3.229.4-0.016.16.71.1-1.7

currency:USD, us-gaap:FixedMaturities, us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value527-71-19-70213-337382
Percentage of SecuritiesContinuousUnrealizedLossPositionLessthan12monthsAggregateLosses129.8417.6158.3225.8143.0-383.0318.3

currency:USD, us-gaap:FixedMaturities, us-gaap:PublicUtilityBonds



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value380-3-914-4339
Percentage of SecuritiesContinuousUnrealizedLossPositionLessthan12monthsAggregateLosses9.4-0.025.029.09.4-48.932.5

currency:USD, us-gaap:FixedMaturities, us-gaap:SovereignDebt



Period End2020-03-31
Value1000000.0
Percentage of SecuritiesContinuousUnrealizedLossPositionLessthan12monthsAggregateLosses0.2

us-gaap:FinancialInstrument

us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value1476-88-34-117417-5481011
Percentage of SecuritiesContinuousUnrealizedLossPositionLessthan12monthsAggregateLosses363.5517.6283.3377.4279.9-622.7842.5

us-gaap:ShareRepurchaseProgram

afl:StockAcquiredUnderShareRepurchaseProgramShares

afl:ShareRepurchaseProgram



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value108571087
Percentage of StockAcquiredUnderShareRepurchaseProgramShares100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:TreasuryStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value98561087
Percentage of StockAcquiredUnderShareRepurchaseProgramShares99.899.6100.899.2100.4100.1100.0

afl:TotalAdjustedRevenues



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value5594555356395528553754315473553955465348541654295397
Percentage of TotalAdjustedRevenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

afl:TotalCreditLossesPeriodIncreaseDecrease



Period End2020-03-312019-03-31
Value1450
Percentage of TotalCreditLossesPeriodIncreaseDecrease100.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value715158141510
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-03-31
Value71515815141510131412122371321910107-301012535109108101012596
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.00.0100.0100.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AllowanceForLoanAndLeaseLossesPeriodIncreaseDecrease



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value01052232-5-3-7-4-1-2-1
Percentage of AllowanceForLoanAndLeaseLossesPeriodIncreaseDecrease0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentType

afl:Commercialmortgageloans



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.01000000.01000000.00.00.0
Percentage of AllowanceForLoanAndLeaseLossesPeriodIncreaseDecrease0.010.020.00.00.0

afl:Middlemarketloans



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value-346221
Percentage of AllowanceForLoanAndLeaseLossesPeriodIncreaseDecrease0.060.040.0100.050.0

afl:ReinsuranceRecoverables



Period End2020-03-31
Value0.0
Percentage of AllowanceForLoanAndLeaseLossesPeriodIncreaseDecrease0.0

afl:Transitionalrealestateloans



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value-33101
Percentage of AllowanceForLoanAndLeaseLossesPeriodIncreaseDecrease0.030.020.00.050.0

us-gaap:AvailableforsaleSecurities



Period End2020-03-31
Value-63
Percentage of AllowanceForLoanAndLeaseLossesPeriodIncreaseDecrease0.0

us-gaap:HeldtomaturitySecurities



Period End2020-03-31
Value1000000.0
Percentage of AllowanceForLoanAndLeaseLossesPeriodIncreaseDecrease0.0

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-30
Value00000000000022111001336859423427
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductOrService

us-gaap:AssumedPremiumsEarned

us-gaap:OtherInsuranceProductLine



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value01011122212121222221
Percentage of AssumedPremiumsEarned0.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductOrService, us-gaap:StatementBusinessSegments

afl:Closedblock, afl:AflacJapan



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value4949515050505153545354555457625956545455
Percentage of AssumedPremiumsEarned0.04900.00.05000.05000.05000.02550.02650.02700.05300.02700.05500.02700.05700.03100.02950.02800.02700.02700.05500.0

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
Value444245454500440244154404443144584482442544314383441148024753460343344209417644134213443946624600453647734817468648475495536751615038514548824635451746274339409140914254397738403947
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:CapitalLeaseObligationsIncurred



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value1350810110915412-103-141109000-11230120101
Percentage of CapitalLeaseObligationsIncurred100.0100.0100.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.00.0100.00.00.00.0100.0100.0100.0100.00.0100.0100.00.0100.00.0100.0

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect



Period End2020-03-312019-03-31
Value-748-445
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0

us-gaap:ProductOrService

us-gaap:CededPremiumsEarned

us-gaap:OtherInsuranceProductLine



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value241917171513151615141213121113121211108
Percentage of CededPremiumsEarned100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductOrService, us-gaap:StatementBusinessSegments

afl:Closedblock, afl:AflacJapan



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value116117121119121119122126129125130130130137148141134129130132
Percentage of CededPremiumsEarned483.3615.8711.8700.0806.7915.4813.3787.5860.0892.91083.31000.01083.31245.51138.51175.01116.71172.71300.01650.0

us-gaap:ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-16-44-304446-113-217413
Percentage of ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentRisk, us-gaap:FinancialInstrument

us-gaap:ForeignExchangeForward, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-16-46-196933-106-215414
Percentage of ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1100.0104.563.3150.0225.071.793.899.1100.2

us-gaap:ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge1



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1031-4-21-18-4783186-464
Percentage of ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge1100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentRisk, us-gaap:FinancialInstrument

us-gaap:ForeignExchangeForward, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1031-4-21-18-4783186-464
Percentage of ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge1100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonStockDividendsPerShareCashPaid



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-03-31
Value0.280.270.270.270.260.260.260.430.430.430.410.410.410.390.390.390.370.370.370.350.350.350.330.330.330.30.30.30.280.280.280.280.28
Percentage of CommonStockDividendsPerShareCashPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:CommonStockDividendsPerShareDeclared

us-gaap:RetainedEarnings



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value0.280.270.270.270.260.260.26
Percentage of CommonStockDividendsPerShareDeclared100.0100.0100.0100.0100.0100.0100.0

us-gaap:ComprehensiveIncomeNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-2709145166427003258767-98-137430808461482594-198356130443042827588-125210161182600210916021081-1602-17219326558209548781112248513561117840
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementGeographical, us-gaap:InvestmentType

us-gaap:ConcentrationRiskPercentage1

stpr:CA, afl:CommercialMortgageandTransitionalRealEstateLoans



Period End2020-03-31
Value0.2
Percentage of ConcentrationRiskPercentage1100.0

stpr:FL, afl:CommercialMortgageandTransitionalRealEstateLoans



Period End2020-03-31
Value0.1
Percentage of ConcentrationRiskPercentage150.0

stpr:TX, afl:CommercialMortgageandTransitionalRealEstateLoans



Period End2020-03-31
Value0.14
Percentage of ConcentrationRiskPercentage170.0

us-gaap:DebtSecuritiesAvailableForSaleAllowanceForCreditLossPeriodIncreaseDecrease



Period End2020-03-312019-03-31
Value630
Percentage of DebtSecuritiesAvailableForSaleAllowanceForCreditLossPeriodIncreaseDecrease100.00.0

us-gaap:FinancialInstrument, us-gaap:InformationByCategoryOfDebtSecurity

us-gaap:DebtSecuritiesAvailableForSaleRealizedGain

us-gaap:DebtSecurities, us-gaap:AvailableforsaleSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value76011321220601210111810
Percentage of DebtSecuritiesAvailableForSaleRealizedGain100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument, us-gaap:InformationByCategoryOfDebtSecurity

us-gaap:DebtSecuritiesAvailableForSaleRealizedLoss

us-gaap:DebtSecurities, us-gaap:AvailableforsaleSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value039183857267124458
Percentage of DebtSecuritiesAvailableForSaleRealizedLoss0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtSecuritiesAvailableForSaleUnrealizedGainLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value8470-575122620229218-5-902
Percentage of DebtSecuritiesAvailableForSaleUnrealizedGainLoss100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtSecuritiesHeldToMaturityAllowanceForCreditLossPeriodIncreaseDecrease



Period End2020-03-312019-03-31
Value-1000000.00.0
Percentage of DebtSecuritiesHeldToMaturityAllowanceForCreditLossPeriodIncreaseDecrease100.00.0

us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses

country:JP, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value-1000000.0-1000000.0-1000000.0-1000000.00.0-1000000.0
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses100.0100.0100.0100.00.0100.0

country:US, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value-6-2-3-3-4-4
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses600.0200.0300.0300.00.0400.0

us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-1000000.00.0-1000000.00.00.0-1000000.00.00.00.0-1000000.00.00.00.00.00.0-1000000.0
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses100.0-0.0100.00.0-0.00.0-0.00.00.00.00.00.00.00.00.00.0

us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanContributionsByEmployer

country:JP, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-31
Value912
Percentage of DefinedBenefitPlanContributionsByEmployer100.0100.0

country:US, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-31
Value084
Percentage of DefinedBenefitPlanContributionsByEmployer0.0700.0

us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets

country:JP, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value212221
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets100.0100.0100.0100.0100.0100.0

country:US, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value978767
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets450.0700.0400.0350.0300.0700.0

us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanInterestCost

country:JP, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value131131
Percentage of DefinedBenefitPlanInterestCost100.0100.0100.0100.0100.0100.0

country:US, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value8-810959
Percentage of DefinedBenefitPlanInterestCost800.0-266.71000.0900.0166.7900.0

us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value0.00.00.01000000.00.00.00.01000000.00.00.00.01000000.00.01000000.00.01000000.0
Percentage of DefinedBenefitPlanInterestCost0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost

country:JP, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value696565
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost100.0100.0100.0100.0100.0100.0

country:US, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value12-71011913
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost200.0-77.8166.7220.0150.0260.0

us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value1011010101010-1-2-1
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost16.70.016.70.00.016.70.00.00.00.00.00.00.00.00.00.0

us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanServiceCost

country:JP, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value666554
Percentage of DefinedBenefitPlanServiceCost100.0100.0100.0100.0100.0100.0

country:US, us-gaap:PensionPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value765667
Percentage of DefinedBenefitPlanServiceCost116.7100.083.3120.0120.0175.0

us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value0.00.00.00.00.00.00.00.00.00.00.00.00.01000000.00.00.0
Percentage of DefinedBenefitPlanServiceCost0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StatementBusinessSegments

us-gaap:DerivativeCostOfHedge

afl:AflacJapan



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value5566666262685955556060565263543732
Percentage of DerivativeCostOfHedge100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeFairValueHedgeIncludedInEffectivenessGainLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-9-305201949-87-185453
Percentage of DerivativeFairValueHedgeIncludedInEffectivenessGainLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentRisk, us-gaap:FinancialInstrument

us-gaap:ForeignExchangeForward, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-9-305201949-87-185453
Percentage of DerivativeFairValueHedgeIncludedInEffectivenessGainLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidatedEntities, us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship

us-gaap:DerivativeGainLossOnDerivativeNet

srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIE, us-gaap:CurrencySwap, us-gaap:Nondesignated



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value501927044-183950-110
Percentage of DerivativeGainLossOnDerivativeNet100.0100.0100.00.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship

us-gaap:ForeignExchangeForward, us-gaap:Nondesignated



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value-36-171-70114-21-6-154-1541795410-29-27-15614410118417-10-1100
Percentage of DerivativeGainLossOnDerivativeNet-72.0-900.0-259.30.0-47.733.3-394.9-308.0-162.70.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ForeignExchangeOption, us-gaap:Nondesignated



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value-20000-11000000009200
Percentage of DerivativeGainLossOnDerivativeNet-4.00.00.00.00.0-2.0-0.90.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:InterestRateSwap, us-gaap:Nondesignated



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value47-121064-10000000000230-22-1-1-4-47-1
Percentage of DerivativeGainLossOnDerivativeNet94.0-5.37.40.013.6-22.2-2.60.0-0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:VariableInterestEntitiesByClassificationOfEntity

us-gaap:CurrencySwap, us-gaap:Nondesignated, us-gaap:VariableInterestEntityPrimaryBeneficiary



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-19528-9313-16-13-16-36124
Percentage of DerivativeGainLossOnDerivativeNet-390.0147.4-344.40.0-36.472.2-41.0-72.0-112.7

us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship

us-gaap:Nondesignated



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value-136-126-13413713-33-132-14119463275-3510695-95221001856-5394-1328-5511259498-67
Percentage of DerivativeGainLossOnDerivativeNet-272.0-663.2-496.30.029.5183.3-338.5-282.0-176.40.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-1000000.00.0-1000000.0-1000000.0-1000000.00.00.00.00.0
Percentage of DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet100.00.0100.0100.0100.00.00.00.00.0

us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship

us-gaap:InterestRateSwaption, us-gaap:FairValueHedging



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.00.00.0-1000000.00.00.00.00.00.0
Percentage of DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet-0.00.0-0.0100.0-0.00.00.00.00.0

us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:VariableInterestEntitiesByClassificationOfEntity

us-gaap:CurrencySwap, us-gaap:CashFlowHedging, us-gaap:VariableInterestEntityPrimaryBeneficiary



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-1000000.00.0-1000000.00.0-1000000.00.00.00.00.0
Percentage of DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet100.00.0100.0-0.0100.00.00.00.00.0

us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship

us-gaap:CashFlowHedging



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-31
Value-1000000.00.0-1000000.00.0-1000000.00.00.00.00.00.0-1000000.01000000.01000000.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet100.00.0100.0-0.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FairValueHedging



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.00.00.0-1000000.00.00.00.00.00.0
Percentage of DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet-0.00.0-0.0100.0-0.00.00.00.00.0

us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship

us-gaap:DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet

us-gaap:ForeignExchangeForward, us-gaap:FairValueHedging



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-31
Value-6-15-23-15-9-14-23-29-50-47-53-49-31-56-198-80-25-93-20-23-2-93-5-5-2-13-6-300
Percentage of DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0

us-gaap:ForeignExchangeForward, us-gaap:NetInvestmentHedging



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value51-102000000000000000000000000000
Percentage of DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet-850.066.7-87.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.00.0-0.0-0.0-0.0-0.0-0.0-0.00.0

us-gaap:ForeignExchangeOption, us-gaap:FairValueHedging



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value02-50-414-7-2-118-14-714-27-47-10-1135-910000
Percentage of DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet-0.0-13.321.7-0.044.4-100.030.46.92.0-38.326.414.3-45.248.22.0-8.84.0-0.05.0-4.3-150.0-55.6-300.0-20.0-0.00.0-0.0-0.0

us-gaap:ForeignExchangeOption, us-gaap:NetInvestmentHedging



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value6-1-3000000000000000000000000000
Percentage of DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet-100.06.713.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.00.0-0.0-0.0-0.0-0.0-0.0-0.00.0

us-gaap:InterestRateSwaption, us-gaap:FairValueHedging



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-30
Value00000000000000013839-22-41000
Percentage of DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-4.3-150.0-88.9100.0-180.0440.02050.0-0.0-0.0-0.0

us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:VariableInterestEntitiesByClassificationOfEntity

us-gaap:CurrencySwap, us-gaap:CashFlowHedging, us-gaap:VariableInterestEntityPrimaryBeneficiary



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.00.0-1000000.00.00.0-1000000.00.00.01000000.0
Percentage of DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet-0.0-0.04.3-0.0-0.07.1-0.0-0.0-2.0

us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship

us-gaap:CashFlowHedging



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value00-100-10010000001000000-10-11-1-1000202-47133-3
Percentage of DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet-0.0-0.04.3-0.0-0.07.1-0.0-0.0-2.0-0.0-0.0-0.0-0.0-0.0-0.0-1.2-0.0-0.0-0.0-0.0-0.0-0.0-33.3-0.020.0-50.07.716.7-0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FairValueHedging



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-31
Value-6-13-28-15-130-30-31-51-29-67-56-17-83-202-73-26-93-21-2144-35-27-43-13-6-300
Percentage of DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet100.086.7121.7100.0144.4-0.0130.4106.9102.061.7126.4114.354.8148.2102.091.2104.0100.0105.091.3-200.0-44.4-100.0-100.0540.02150.0100.0100.0100.00.00.0

us-gaap:NetInvestmentHedging



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-31
Value57-11170000000000000000000000000000
Percentage of DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet-950.073.3-73.9-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.00.0-0.0-0.0-0.0-0.0-0.0-0.00.00.0

us-gaap:DirectPremiumsEarned



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value4772475748234766477646724720479348334665473447524724486851194915469044784464444845144592491849694933
Percentage of DirectPremiumsEarned100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DividendsCommonStockCash



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value202197200203193206203
Percentage of DividendsCommonStockCash100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-03-31
Value20219720020319819320620317716917117317416916917317416816917117516716817016515415414014014112721311311320
Percentage of DividendsCommonStockCash100.0100.0100.0100.00.0100.0100.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:EffectOfExchangeRateOnCashAndCashEquivalents



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-03-31
Value0-3-3942-1266-16-432328-16-4-8-2776718521-16-61-5942-21-9-36-6024817-162435192-3-24
Percentage of EffectOfExchangeRateOnCashAndCashEquivalents0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value17813228321237176141611
Percentage of EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value-18535-8424-8-11-20-4312677-1038-57-1612212625-1558-82-111-9324-9-135264
Percentage of FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument

us-gaap:EquitySecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value0.00.00.00.00.00.0-1000000.00.00.00.00.00.0
Percentage of FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss-0.00.0-0.00.0-0.0-0.05.0-0.00.00.00.0-0.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-30
Value-18534-8424-8-11-20-4312677-1038-57-1612212624-1458-82-111-9324-95264281-4595-215-19
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument

us-gaap:EquitySecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value0.00.00.00.00.00.0-1000000.00.00.00.00.00.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1-0.00.0-0.00.0-0.0-0.05.0-0.00.00.00.0-0.0

us-gaap:FinancialInstrument, us-gaap:InvestmentType

us-gaap:FixedMaturities, us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value0.0-1000000.00.00.00.00.00.00.00.00.00.00.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1-0.0-2.9-0.00.0-0.0-0.0-0.0-0.00.00.00.0-0.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-30
Value-28-13717119-14-1313-2-117-171252526-8-4-27-2713-9910-30-4930348-73193
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument, us-gaap:InvestmentType

us-gaap:FixedMaturities, afl:BanksAndFinancialInstitutions



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value0.00.00.01000000.00.00.00.0-1000000.0-1000000.00.00.01000000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss-0.0-0.00.05.90.00.0-0.07.7-7.7-0.0-0.0100.0

us-gaap:FixedMaturities, us-gaap:AssetBackedSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value1-50515-6-811-1-20
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss-3.638.50.029.4100.026.342.961.584.650.0200.00.0

us-gaap:FixedMaturities, us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value-17-45617-4-1-2-112
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss60.730.871.435.3100.036.828.67.7-15.450.0-100.0200.0

us-gaap:FixedMaturities, us-gaap:PublicUtilityBonds



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value-8-44515-2-1-1000
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss28.630.857.129.4100.026.314.37.7-7.7-0.0-0.00.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value0001900000000000000000000000000000000
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues0.00.00.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FinancialInstrument

us-gaap:EquitySecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value0001900000000
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues0.00.00.0100.00.00.00.00.00.00.00.00.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value851073325633108116375387371600000000000000000-6000000
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0100.00.00.00.00.00.00.0

us-gaap:FinancialInstrument

us-gaap:EquitySecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value211400300100410
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases2.40.942.40.00.096.80.01.20.00.07.511.5

us-gaap:FinancialInstrument, us-gaap:InvestmentType

us-gaap:FixedMaturities, us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value05819256310560222540
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases0.054.257.6100.0100.03.20.069.10.059.547.246.0

us-gaap:FixedMaturities, us-gaap:PublicUtilityBonds



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value8348000002416152437
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases97.644.90.00.00.00.00.029.6100.040.545.342.5

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value03900200001101000000147000600-13040000-290-1530020534
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales0.0100.00.00.0100.00.00.00.00.0100.0100.00.0100.00.00.00.00.00.00.0100.00.00.00.0100.00.0100.00.0100.00.00.0100.0100.0100.00.00.0100.00.0100.0

us-gaap:FinancialInstrument, us-gaap:InvestmentType

us-gaap:FixedMaturities, us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value0150020000110
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales0.038.50.00.0100.00.00.00.00.0100.0100.00.0

us-gaap:FixedMaturities, us-gaap:PublicUtilityBonds



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value0240000000000
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales0.061.50.00.00.00.00.00.00.00.00.00.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value12220212128793213114-2001-1533-68-21333714-286-132-125-3420
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:FinancialInstrument, us-gaap:InvestmentType

us-gaap:FixedMaturities, us-gaap:AssetBackedSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value000000000287
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements0.00.00.00.00.00.00.00.00.0100.0100.0100.0

us-gaap:FixedMaturities, us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value000002121000
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements0.00.00.00.00.0100.0100.0100.0100.00.00.00.0

us-gaap:FixedMaturities, us-gaap:PublicUtilityBonds



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value122200000000
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements100.0100.0100.0100.00.00.00.00.00.00.00.00.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value90111625160002400000000000149000049125206003674-310018672549
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3100.00.0100.0100.0100.0100.00.00.00.0100.00.00.00.00.00.00.00.00.00.00.00.0100.00.00.00.00.0100.0100.0100.00.00.0100.0100.00.00.0100.0100.0100.0

us-gaap:FinancialInstrument, us-gaap:InvestmentType

us-gaap:FixedMaturities, us-gaap:AssetBackedSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value900000000000
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3100.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FixedMaturities, us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value001025160002400
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel30.00.0100.00.0100.0100.00.00.00.0100.00.00.0

us-gaap:FixedMaturities, us-gaap:PublicUtilityBonds



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value00011600000000
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel30.00.00.0100.00.00.00.00.00.00.00.00.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value0011164100002600000000000000009261600003800001234210
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel30.00.0100.0100.0100.00.00.00.00.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0100.0100.00.00.00.00.0100.00.00.00.0100.0100.0

us-gaap:FinancialInstrument

us-gaap:EquitySecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value000000000200
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel30.00.00.00.00.00.00.00.00.07.70.00.0

us-gaap:FinancialInstrument, us-gaap:InvestmentType

us-gaap:FixedMaturities, afl:BanksAndFinancialInstitutions



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value0.00.01000000.00.00.00.00.00.00.00.00.00.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel30.00.0100.00.00.00.00.00.00.00.00.00.0

us-gaap:FixedMaturities, us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value000116160000000
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel30.00.00.0100.039.00.00.00.00.00.00.00.0

us-gaap:FixedMaturities, us-gaap:PublicUtilityBonds



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value00002500002400
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel30.00.00.00.061.00.00.00.00.092.30.00.0

us-gaap:DerivativeInstrumentRisk

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisChangeInUnrealizedGainLoss

us-gaap:CreditDefaultSwap



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value0000000-100-100-12-111-101
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisChangeInUnrealizedGainLoss0.00.00.00.00.00.00.0100.00.00.0100.00.00.0100.0100.0100.0100.0100.0100.00.0100.0

us-gaap:CurrencySwap



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value-18535-8424-8-11-19-4212678-1038-56-1812312524-1458-83
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisChangeInUnrealizedGainLoss0.00.00.00.00.00.00.04200.00.00.0-800.00.00.05600.0-900.0-12300.012500.02400.01400.00.0-8300.0

us-gaap:DerivativeInstrumentRisk

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInEarnings

us-gaap:CreditDefaultSwap



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value0000000-100-100-12-111-101
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInEarnings0.00.00.00.00.00.00.0100.00.00.0100.00.00.0100.0100.0100.0100.0100.0100.00.0100.0

us-gaap:CurrencySwap



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value-18535-8424-8-11-19-4212678-1038-56-1812312523-1358-83
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInEarnings0.00.00.00.00.00.00.04200.00.00.0-800.00.00.05600.0-900.0-12300.012500.02300.01300.00.0-8300.0

us-gaap:DerivativeInstrumentRisk

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInOtherComprehensiveIncomeLoss

us-gaap:CurrencySwap



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value-40-20-22-2-2600-22-60-142-12-4
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInOtherComprehensiveIncomeLoss100.00.0100.00.0100.0100.0100.0100.0100.00.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentRisk

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements

us-gaap:CurrencySwap



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value00000000000000000-2000-16
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0100.00.00.0100.0

us-gaap:FinancingReceivableAllowanceForCreditLossesPeriodIncreaseDecrease



Period End2020-03-312019-03-31
Value370
Percentage of FinancingReceivableAllowanceForCreditLossesPeriodIncreaseDecrease100.00.0

us-gaap:FinancialInstrument, us-gaap:InformationByCategoryOfDebtSecurity

us-gaap:ForeignCurrencyTransactionGainLossRealized

us-gaap:DebtSecurities, us-gaap:AvailableforsaleSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value-14-4-21-41346329-5-13-18
Percentage of ForeignCurrencyTransactionGainLossRealized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossFromComponentsExcludedFromAssessmentOfFairValueHedgeEffectivenessNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-7-14-35-16-15-3-26-32-40
Percentage of GainLossFromComponentsExcludedFromAssessmentOfFairValueHedgeEffectivenessNet100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentRisk, us-gaap:FinancialInstrument

us-gaap:ForeignExchangeForward, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-7-16-24-14-10-16-19-30-39
Percentage of GainLossFromComponentsExcludedFromAssessmentOfFairValueHedgeEffectivenessNet100.0114.368.687.566.7533.373.193.897.5

us-gaap:GainLossOnDerivativeInstrumentsNetPretax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-03-31
Value-85-150-1461220-34-162-17214434-40-51-5223-107-167-47-335-4998-1733-83-411118795-678034-22442-307114-10317000
Percentage of GainLossOnDerivativeInstrumentsNetPretax100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:GainLossOnFairValueHedgeIneffectivenessNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value111-112-41-11
Percentage of GainLossOnFairValueHedgeIneffectivenessNet100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentRisk, us-gaap:FinancialInstrument

us-gaap:ForeignExchangeForward, us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value111-112-41-11
Percentage of GainLossOnFairValueHedgeIneffectivenessNet100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnInvestments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value-46312-153-6671-354563-1341530-56-140137-146-18773114-1141271314316102-4622201156286-418-45-222-83-668-579-2959-89
Percentage of GainLossOnInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancialInstrument

us-gaap:EquitySecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value-1493618-1158-1302718-46-23915
Percentage of GainLossOnInvestments32.2300.0-11.816.781.736.748.2600.034.3-13.3130.0-26.8

us-gaap:FinancialInstrument, us-gaap:InformationByCategoryOfDebtSecurity

us-gaap:DebtSecurities, us-gaap:AvailableforsaleSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value-717-412517-5337-323-3615-17
Percentage of GainLossOnInvestments1.5141.726.8-37.923.915.066.1-1066.7-2.2-240.050.030.4

us-gaap:InvestmentType

afl:DerivativesAndOther



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-31
Value-162-31-125-78-2-167-320-8457-23-52-12323-107-167-47-335-4999-1733-84-401159295-6780
Percentage of GainLossOnInvestments35.0-258.381.7118.2-2.847.2-5.4666.762.7380.0-76.792.987.916.873.389.3-5.56.12.627.6-376.969.2-106.232.4182.6-181.857.259.033.216.0-177.8

us-gaap:IncomeTaxesPaidNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-03-31
Value243476876-2171833483968740023558-6865016577904691051745391746992953561382302262349139412940377190
Percentage of IncomeTaxesPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccruedIncomeTaxesPayable



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-03-31
Value153-159183-58431626218-49-131-1563-4597271272-229231-3677-173286-156393-187237-320193-2020213172-154128-181252-7133187
Percentage of IncreaseDecreaseInAccruedIncomeTaxesPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInInsuranceLiabilities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-03-31
Value368445640551468522475774572753811660666100267573591982898287983594010426549782400129214261337971951985990794679800734
Percentage of IncreaseDecreaseInInsuranceLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInReceivables



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-03-31
Value-15-41952-35282615-14594098-106-112-21-32-49-97140-141526147-171-203-1587-1108-906-465-461-359-296-188-235-178-257
Percentage of IncreaseDecreaseInReceivables100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InsuranceCommissions



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-03-31
Value336331330329331313331338337320332335328337353345333322326325330340361369366388378392442432435438438427422424412398403410388389
Percentage of InsuranceCommissions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestPaidNet



Period End2020-03-312019-12-312019-03-312018-12-31
Value39583657
Percentage of InterestPaidNet100.0100.0100.0100.0

us-gaap:ProductOrService

us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1

us-gaap:AccidentAndHealthInsuranceSegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value556156514211229506150313571226518145613571220505145314621266493
Percentage of LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductOrService

us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1

us-gaap:AccidentAndHealthInsuranceSegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value11441712204301137147217426111612523440010551432324121046
Percentage of LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductOrService

us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1

us-gaap:AccidentAndHealthInsuranceSegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value17011686167216491658161316291646165015691633163416261637169517091563
Percentage of LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Range, us-gaap:CreditFacility

us-gaap:LineOfCreditFacilityCommitmentFeePercentage

srt:Maximum, afl:Onebilliondollarlineofcredit



Period End2020-03-31
Value0.00225
Percentage of LineOfCreditFacilityCommitmentFeePercentage100.0

srt:Maximum, afl:Onehundredbillionyenlineofcredit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value0.0050.00.00.00.0050.00.0
Percentage of LineOfCreditFacilityCommitmentFeePercentage222.20.00.00.00.00.00.0

srt:Minimum, afl:Onebilliondollarlineofcredit



Period End2020-03-31
Value0.00085
Percentage of LineOfCreditFacilityCommitmentFeePercentage37.8

srt:Minimum, afl:Onehundredbillionyenlineofcredit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value0.0030.00.00.00.0030.00.0
Percentage of LineOfCreditFacilityCommitmentFeePercentage133.30.00.00.00.00.00.0

us-gaap:NetChangeAnnuitiesAndInvestmentCertificates



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-03-31
Value-5-134-21-13-14-2627-416518423537454366638487143487536134297261197151124120108102899090
Percentage of NetChangeAnnuitiesAndInvestmentCertificates100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value6-10675577513710
Percentage of NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal



Period End2020-03-312019-03-31
Value460
Percentage of OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal100.00.0

us-gaap:OperatingIncomeLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value11831023115611431139104510611138110997310141073102796711471079110910151027995103588610411157116910471157120511941159124710561188112111709621046978
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementBusinessSegments

afl:AflacJapan



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value85575783883183479775683681874674879176977588283983881078975781977082892793384694098999496410409211027931974798866798
Percentage of OperatingIncomeLoss72.374.072.572.773.276.371.373.573.876.773.873.774.980.176.977.875.679.876.876.179.186.979.580.179.880.881.282.183.283.283.487.286.483.183.283.082.881.6

afl:AflacUs



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-31
Value326276335338323274334340337289316330310262323291332237286293285201269300303269283281260258271214243251
Percentage of OperatingIncomeLoss27.627.029.029.628.426.231.529.930.429.731.230.830.227.128.227.029.923.327.829.427.522.725.825.925.925.724.523.321.822.321.718.021.721.5

us-gaap:AllOtherSegments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312012-09-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value2-10-17-26-18-26-29-38-46253064534531-2000000-10000-1
Percentage of OperatingIncomeLoss0.2-1.0-1.5-2.3-1.6-2.5-2.7-3.3-4.10.20.50.30.00.60.30.50.30.40.50.30.1-0.20.00.00.00.00.00.0-0.10.00.00.00.0-0.1

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedDefinedBenefitPlansAdjustment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value0000000000000-3-2-3-3-5-4-4-4-4-4-5-4
Percentage of OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax0.00.00.00.00.00.00.00.00.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value-335391514942327-596-730-984
Percentage of OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value-335391514942327-6-596-730-984527264699-331-1315-32117571698-228-170-16423541270487971909892341
Percentage of OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax100.0100.0100.0100.00.0100.0100.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-31
Value-3287-62685218992340195-919-857-571472159765-10-2720-9024882361151-69-1782385502-891294894417-2438-1026
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-31
Value-6-72-2-53-23-2-1-372-2-2-4-25-1-4-1-13000-4612-1-2-10
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax0.211.5-0.2-0.30.1-11.80.20.16.50.4-1.3-0.340.00.91.1-0.2-0.0-8.6-0.0-0.00.0-9.2-1.10.2-0.1-0.50.0-0.0

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value-20-6-1-20-1-2200-1
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax0.1-0.0-0.7-0.1-0.10.00.10.2-0.40.00.0-0.1

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-31
Value-3359-41088415122340-48-569-391-983505296698-341-1301-34217501748-175-260-15983861293505964910402-2135-554
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax102.265.5103.879.6100.0-24.661.945.6172.2107.0186.291.23410.047.8380.070.374.0-115.9376.889.7100.3257.6-567.474.5101.896.487.654.0

us-gaap:AccumulatedTranslationAdjustment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-31
Value80-144-24393-1266-347-463447-35-13570333-1389253737612337192-1851-736-589326-1414-300-467
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax-2.423.0-2.820.7-0.0136.437.854.0-78.3-7.4-84.99.2-3330.051.1-281.129.625.9223.2-278.310.40.3-146.6661.825.2-1.63.412.345.5

us-gaap:OtherComprehensiveIncomeLossBeforeTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-30
Value-4517-805119724353182258-1287-971-11067323491083-135-3570-29936073302-32-78-26935481172-16319971338168-3189-1122126283346-991113
Percentage of OtherComprehensiveIncomeLossBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesBeforeTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value-40-8-1-30-2-261-1-22-80833-12-4-9-92-1-52-1
Percentage of OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesBeforeTax100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value-2-6-1-2-112
Percentage of OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value-2-6-1-20-11200-12-50522-11-2-9-62-1-43
Percentage of OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax100.0100.0100.0100.00.0100.0100.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-30
Value85-141-22417-1283-383-493824-39-589375-1500195899689335186-1709-996-904502-575-189-1887632-100-25-93
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship

afl:NonDerivativeHedgingInstruments, us-gaap:NetInvestmentHedging



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-31
Value6282-540-393655-84-25-1-1739-2-22-152-46-13532-11-17-63769-21-3249
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax7.1-19.9-9.1-12.9-0.0-13.8-9.4-11.2-10.25.1-8.6-11.1-4.5-2.6-1.0-2.4-2.20.6-2.2-3.5-11.1-3.5-3.5-2.229.8-120.0-19.6-36.7-27.6-100.0-49.0

us-gaap:ForeignExchangeForward, us-gaap:NetInvestmentHedging



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value-25641900000-14-19-943-28-83-505-353229111-7-62-4000
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax-29.4-45.4-86.4-0.00.0-0.0-0.00.02.6-6.9-211.1-2.4-2.9-14.4-9.2-7.31.5-18.8-18.822.2-9.1-1.2-1.410.540.02.1-0.00.00.0

us-gaap:ForeignExchangeOption, us-gaap:NetInvestmentHedging



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value00000000-82-531-237331-15-163-30000-2-1-43000
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax0.0-0.0-0.00.0-0.00.0-0.0-0.0-1.0-5.18.6344.4-6.1-4.915.9-1.7-2.30.9-1.6-0.00.0-0.0-0.0-0.41.8-80.0-1.6-0.00.00.0

us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship

us-gaap:NetInvestmentHedging



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-31
Value-199221-540-393655-92-1411-491551-120-8110-4238112643-20-24-30-4669-21-3249
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax-22.4-65.2-95.5-12.9-0.0-13.8-9.4-11.2-11.22.6-6.9122.2-13.1-10.30.5-13.3-11.83.0-22.6-22.411.1-12.7-4.8-4.042.1-600.024.3-36.7-27.6-100.0-49.0

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value80-24393-1-347-138447
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-31
Value80-24393-1266-347-138447-35-13570333-1389253737612337192-1851-736-589326-37-474-266
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.00.0100.0100.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-30
Value-3275-63688718832330242-943-833-3434971307692-2734-68249623119721-1825353479-1061299870379-2491-106491517235116820
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-31
Value0-702-36-1812-34511-2-250-3-1-14010-4620-1023
Percentage of OtherComprehensiveIncomeLossNetOfTax-0.011.00.2-0.20.3-7.4-0.1-0.29.91.00.80.1-100.00.9-0.0-0.1-0.0-14.40.0-0.10.0-9.6-1.90.0-0.10.0-0.1-0.3

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value-20-6-1-20-1-2200-1
Percentage of OtherComprehensiveIncomeLossNetOfTax0.1-0.0-0.7-0.1-0.10.00.10.2-0.60.00.0-0.1

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-31
Value-3353-42291514942327-6-596-370-758527264699-331-1315-32117571698-228-170-16423541270487971909341-2179-589
Percentage of OtherComprehensiveIncomeLossNetOfTax102.466.4103.279.399.9-2.563.244.4221.0106.0203.190.9-16550.048.1472.170.473.5-235.1-809.590.0100.3265.1-459.474.7104.590.087.555.4

us-gaap:AccumulatedTranslationAdjustment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-31
Value80-144-24393-1266-347-463447-35-13570333-1389253737612337192-1851-736-589326-3735-312-474
Percentage of OtherComprehensiveIncomeLossNetOfTax-2.422.6-2.720.9-0.0109.936.855.6-130.3-7.0-103.89.116650.050.8-372.129.526.5347.4914.310.10.3-153.7555.725.1-4.39.212.544.5

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-30
Value090-12-726-1-23-10-10239042210-1078-3010-3-5332-5150
Percentage of OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.0100.0100.0100.00.0100.00.0100.0100.00.0100.00.0100.0100.0100.0100.0100.0100.00.0

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value0-23-6-1-3434
Percentage of OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax0.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-31
Value0-23-618-1-3434-5-1-1225031140-1046-201-3-4
Percentage of OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax0.0100.0100.0100.00.0100.0100.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedDefinedBenefitPlansAdjustment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value-8-3-5-3-4-5-5-4-4-5-4-5-3-3-4-5-3-4-4-5-4-4-5-2-4-6-4-4
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-03-31
Value-1242-16931055285216-344-138-763235219314-137-836-2311111991-129-99-868195693-57698468-211-698-58347-89311305-21429210-37511274156294454-827
Percentage of OtherComprehensiveIncomeLossTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship

us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax

us-gaap:InterestRateSwaption, us-gaap:FairValueHedging



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value00-6-1-1-1000
Percentage of OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax0.00.0100.0100.0100.0100.00.00.00.0

us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:VariableInterestEntitiesByClassificationOfEntity

us-gaap:CurrencySwap, us-gaap:CashFlowHedging, us-gaap:VariableInterestEntityPrimaryBeneficiary



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-40-20-21-2-26
Percentage of OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax0.00.033.3-0.0200.0-100.00.00.00.0

us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship

us-gaap:CashFlowHedging



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value-40-20-21-2-261-1-2
Percentage of OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax0.00.033.3-0.0200.0-100.00.00.00.00.00.00.0

us-gaap:FairValueHedging



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value00-6-1-1-1000
Percentage of OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax0.00.0100.0100.0100.0100.00.00.00.0

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-03-31
Value-4605-557118520463196-56-866-506-19317254571075-526-2003-52726932689-268-401-2458593229177414821399255-2934-8741430-319324588114473-609-12207125553232481228-2763
Percentage of OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherNoncashExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-31
Value15-11602202002161941516111812176-63610279302813
Percentage of OtherNoncashExpense100.0100.0100.00.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherNoncashIncomeExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-03-312010-12-312010-09-30
Value159-213-199-61115-65-446-933360-132-55-23-98-140133-126-595-145-230-19-17524-124-34-400-8-40-68-38-41-186
Percentage of OtherNoncashIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherNonoperatingIncomeExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-150000-1-3-42-29-31-10-9-2070-18-37-434-27-225-186027-11-928000
Percentage of OtherNonoperatingIncomeExpense100.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:ProductOrService

us-gaap:PaymentsForLossesAndLossAdjustmentExpense

us-gaap:AccidentAndHealthInsuranceSegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value17001736164116591643165015741652163415811591162015601596169416781539
Percentage of PaymentsForLossesAndLossAdjustmentExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForProceedsFromHedgeInvestingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value-1322-27113100105351381206-1044-49-539-391-273-123422171983269121-74320128
Percentage of PaymentsForProceedsFromHedgeInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForProceedsFromOtherInvestingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-03-31
Value55138110-1401512-115-10734101619232023-12615955487-60-201597-122930312101910713-23161
Percentage of PaymentsForProceedsFromOtherInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireAvailableForSaleSecuritiesDebt



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-03-31
Value181710261556180425481241104728233975304011651936372660191044191619112588915156214422019195924034597316010252031153919082914328020572013259320873615
Percentage of PaymentsToAcquireAvailableForSaleSecuritiesDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireLoansReceivable



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value178717671100865669698144593317721199424
Percentage of PaymentsToAcquireLoansReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PolicyholderBenefitsAndClaimsIncurredGross



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value3028305231063038304129923076310631193083315731173129334234633332310330043000301330253160342533613289
Percentage of PolicyholderBenefitsAndClaimsIncurredGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-03-312010-12-312009-12-31
Value5453470268010200-2251600524-2988000099897500000749-400401
Percentage of ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet100.0100.00.0100.00.0100.00.0100.0100.0100.00.00.0100.0100.0100.00.00.00.00.0100.0100.0100.00.00.00.00.0100.0100.00.00.0100.0

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-03-312010-12-31
Value018523448155790282850498403108322845321045927788258335851936973094450501153618127188
Percentage of ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-03-31
Value-1213-20-5-2-7-5-5311-8962-39-113-2371110330692-2-2920117184-5
Percentage of ProceedsFromPaymentsForOtherFinancingActivities100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleAndCollectionOfLoansReceivable



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value40852140539549333923921214616944
Percentage of ProceedsFromSaleAndCollectionOfLoansReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value7262157102213457601897212229269431298808
Percentage of ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfTreasuryStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-03-31
Value9111214122224-21410661191812788713845161958-8101663297114
Percentage of ProceedsFromSaleOfTreasuryStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromStockOptionsExercised



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value64613176118231092217926
Percentage of ProceedsFromStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-31
Value-1210-351610-4724-24-228-2529-4-1214-22-85054-9043322317-524385338
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdjustmentsForNewAccountingPronouncements

afl:AccountingStandardsUpdate201904



Period End2020-03-31
Value-848
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax7066.7

us-gaap:AdjustmentsForNewAccountingPronouncements, us-gaap:StatementEquityComponents

afl:AccountingStandardsUpdate201904, us-gaap:AccumulatedDefinedBenefitPlansAdjustment



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

afl:AccountingStandardsUpdate201904, us-gaap:AccumulatedGainLossNetCashFlowHedgeParent



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

afl:AccountingStandardsUpdate201904, us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-31
Value-848
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax7066.7

afl:AccountingStandardsUpdate201904, us-gaap:AccumulatedTranslationAdjustment



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

us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-31
Value-6-2-4-2-3-5-3-3-3-3-3-3-20-1-1010-100-120-2-3-3
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax50.0-20.011.4-12.5-30.010.6-12.512.51.312.0-10.375.016.70.04.512.50.01.9-0.0-2.30.00.0-5.9-40.00.0-5.3-5.7-7.9

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-31
Value-612-311813-4227-21-225-2232-1-1014-21-75053-9044322318-71614435
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax50.0120.088.6112.5130.089.4112.587.598.788.0110.325.083.3100.095.587.5100.098.1100.0102.3100.0100.0105.9140.04.2160.583.092.1

us-gaap:AccumulatedTranslationAdjustment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-31
Value00000000000000000000000023-21127
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax-0.00.0-0.00.00.0-0.00.0-0.0-0.0-0.00.0-0.0-0.00.0-0.0-0.00.00.0-0.00.00.00.00.0-0.095.8-55.322.618.4

us-gaap:ProductOrService

us-gaap:ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountAssumed

us-gaap:OtherInsuranceProductLine



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value001000020100221-13022-17
Percentage of ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountAssumed0.00.0100.00.00.00.00.0100.00.0100.00.00.0100.0100.0100.0100.00.0100.0100.0100.0

us-gaap:ProductOrService, us-gaap:StatementBusinessSegments

afl:Closedblock, afl:AflacJapan



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value4150494748604849525053525454595653515051
Percentage of ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountAssumed0.00.04900.00.00.00.00.02450.00.05000.00.00.02700.02700.05900.0-430.80.02550.02500.0-300.0

us-gaap:StatementBusinessSegments

srt:ConsolidationEliminations



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value-10-10-11-10-10-20-10-11-12-12-13-13
Percentage of ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountAssumed0.00.0-1100.00.00.00.00.0-550.00.0-1200.00.00.0

us-gaap:ProductOrService

us-gaap:ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded

us-gaap:OtherInsuranceProductLine



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value25161812111011121213911111210-810106-10
Percentage of ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductOrService, us-gaap:StatementBusinessSegments

afl:Closedblock, afl:AflacJapan



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value105102111109111107111114117114118119122124135129121117119120
Percentage of ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded420.0637.5616.7908.31009.11070.01009.1950.0975.0876.91311.11081.81109.11033.31350.0-1612.51210.01170.01983.3-1200.0

us-gaap:StatementBusinessSegments

srt:ConsolidationEliminations



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value-10-10-11-10-10-10-10-11-12-12-13-13
Percentage of ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded-40.0-62.5-61.1-83.3-90.9-100.0-90.9-91.7-100.0-92.3-144.4-118.2

us-gaap:DebtInstrument, us-gaap:SubsequentEventType

us-gaap:RepaymentsOfDebt

afl:SeniorNotesFourPointZeroZeroPercentDueFebruaryTwentyTwentyTwo, us-gaap:SubsequentEvent



Period End2020-01-31
Value350
Percentage of RepaymentsOfDebt100.0

us-gaap:RepaymentsOfLongTermDebtAndCapitalSecurities



Period End2020-03-312019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-03-31
Value35005500005014265437823110042203350001046101-545411161
Percentage of RepaymentsOfLongTermDebtAndCapitalSecurities100.00.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.00.00.0100.00.0100.00.00.00.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0

afl:TreasuryStockActivityByType

us-gaap:StockIssued1

afl:AssociateStockBonus



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-03-31
Value5342602057610667989810898117880
Percentage of StockIssued1100.0100.0100.0100.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

afl:ShareBasedCompensationGrants



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-03-31
Value50014000200010-114-100401-14442
Percentage of StockIssued1100.00.00.050.066.70.00.00.040.00.00.00.016.70.0-14.311.150.0-11.10.00.050.00.012.5-9.157.150.050.00.0

afl:ShareholderDividendReinvestment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-03-31
Value7976800087697876677667577666
Percentage of StockIssued1140.0300.0175.0300.0133.30.00.00.0160.0100.0100.090.0116.7133.3100.066.775.077.887.560.075.077.862.563.6100.075.075.00.0

us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesDividendReinvestmentPlan

us-gaap:TreasuryStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-03-31
Value468000.0378000.0396000.0406000.0430000.0456000.0450000.016000.0384000.0195000.0198000.0251000.0247000.0242000.0228000.0283000.0311000.0290000.0308000.0316000.0295000.0321000.0304000.0342000.0284000.0364000.0381000.0325000.0
Percentage of StockIssuedDuringPeriodSharesDividendReinvestmentPlan100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesOther

us-gaap:TreasuryStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-03-31
Value227000.01000.08000.09000.0278000.01000.08000.06000.099000.00.0-3000.02000.020000.0-2000.0-5000.01000.0111000.0-17000.03000.04000.0106000.00.0-1000.01000.0121000.0145000.0134000.078000.0
Percentage of StockIssuedDuringPeriodSharesOther100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesShareBasedCompensation



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value10001000100000000000000000
Percentage of StockIssuedDuringPeriodSharesShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised

us-gaap:TreasuryStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-31
Value000000000000000000000000000000000-100
Percentage of StockIssuedDuringPeriodSharesStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value5312119714
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-03-31
Value53121149714551810813151021771751086101342312207161650
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised100.0100.0100.0100.00.0100.0100.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StockIssuedDuringPeriodValueTreasuryStockReissued



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value2623233026429
Percentage of StockIssuedDuringPeriodValueTreasuryStockReissued100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-31
Value91212127116132510101091111710810101081112147
Percentage of StockIssuedDuringPeriodValueTreasuryStockReissued34.652.252.240.00.042.3150.044.80.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-03-31
Value171111181115-21613815151420171813151321141011222316121512144235101213
Percentage of StockIssuedDuringPeriodValueTreasuryStockReissued65.447.847.860.00.057.7-50.055.20.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ProductOrService

us-gaap:SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense

us-gaap:AccidentAndHealthInsuranceSegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value18371801180617851825172017601779184217011759177217371728184317901705
Percentage of SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductOrService

us-gaap:SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense

us-gaap:AccidentAndHealthInsuranceSegment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-136-115-134-136-167-107-131-133-192-132-126-138-111-91-148-81-142
Percentage of SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductOrService, us-gaap:StatementBusinessSegments

us-gaap:AccidentAndHealthInsuranceSegment, afl:AflacJapan



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value91-85-508289-91-94-115-113-97-82-135
Percentage of SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense-66.973.9379.1-212.554.587.987.885.050.562.1107.1

us-gaap:TreasuryStockValueAcquiredCostMethod



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value476311358517324306309
Percentage of TreasuryStockValueAcquiredCostMethod100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:TreasuryStock



Period End2020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-03-31
Value4763113585173783243063093382402036102002084026122342332386105121761014211561040374718411601462
Percentage of TreasuryStockValueAcquiredCostMethod100.0100.0100.0100.00.0100.0100.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

afl:AccumulatedOtherComprehensiveIncomeLossDeferredIncomeTaxOnInvestmentSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302009-12-31
Value-2427-3343-3496-3185-2657-1805-1804-2110-2220-3394-3165-3023-2646-2825-3531-3714-2760-1845-1967-2059-2944-2754-1769-1508-985-499-35-217-1039-1382-1255-828-800-652-419-430-8-41-335356
Percentage of AccumulatedOtherComprehensiveIncomeLossDeferredIncomeTaxOnInvestmentSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidatedEntities

afl:AssetsAmortizedCostDisclosure

us-gaap:VariableInterestEntityNotPrimaryBeneficiary



Period End2020-03-312019-12-31
Value61186052
Percentage of AssetsAmortizedCostDisclosure100.0100.0

us-gaap:VariableInterestEntityPrimaryBeneficiary



Period End2020-03-312019-12-31
Value1289811927
Percentage of AssetsAmortizedCostDisclosure210.8197.1

afl:AssetsFairValueDisclosureFinancialInstrumentsCarriedatCost



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value397664727247212467314465643641427694327245058410744059940923422114116348738492174306037638370143639138497
Percentage of AssetsFairValueDisclosureFinancialInstrumentsCarriedatCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueInputsLevel1



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value278422793728868288522762927030258682720928317264912645526653266072604031093320762759523391229912224923218
Percentage of AssetsFairValueDisclosureFinancialInstrumentsCarriedatCost70.059.161.161.761.961.960.562.962.864.565.265.163.063.363.865.264.162.162.161.160.3

us-gaap:FairValueInputsLevel2



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value1534967799731020398299703103921074912147115771213912633142941395916817166921518514103139301408815248
Percentage of AssetsFairValueDisclosureFinancialInstrumentsCarriedatCost3.920.521.121.822.022.224.324.827.028.229.930.933.933.934.533.935.337.537.638.739.6

us-gaap:FairValueInputsLevel3



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value103909658837176767198690865095314459430062005163713101164828449280144935431
Percentage of AssetsFairValueDisclosureFinancialInstrumentsCarriedatCost26.120.417.716.416.115.815.212.310.27.34.94.03.12.81.70.90.70.40.30.10.1

afl:Carryingvalueoffinancialinstrumentsassetsnotoffsetinbalancesheet



Period 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
Value22919016114111815211813811682219285698
Percentage of Carryingvalueoffinancialinstrumentsassetsnotoffsetinbalancesheet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

afl:Carryingvalueoffinancialinstrumentsliabilitiesnotoffsetinbalancesheet



Period 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
Value3181205023161677207711812045377653656747289321211
Percentage of Carryingvalueoffinancialinstrumentsliabilitiesnotoffsetinbalancesheet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TransactionType

afl:Securitieslendingandsimilararrangements



Period 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
Value295218602155153619591029192736385249592509647513
Percentage of Carryingvalueoffinancialinstrumentsliabilitiesnotoffsetinbalancesheet92.890.793.091.694.387.194.296.397.887.869.969.442.4

afl:CashCollateralAssetsNotOffsetinBalanceSheet



Period 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
Value308419732213160520401087203637205316690621761895
Percentage of CashCollateralAssetsNotOffsetinBalanceSheet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TransactionType

afl:Securitieslendingandsimilararrangements



Period 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
Value295218602155153619591029192736385249592509647513
Percentage of CashCollateralAssetsNotOffsetinBalanceSheet95.794.397.495.796.094.794.697.898.785.882.085.057.3

afl:CashCollateralLiabilitiesNotOffsetinBalanceSheet



Period 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
Value233477645682751113107721
Percentage of CashCollateralLiabilitiesNotOffsetinBalanceSheet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentType

afl:DebtSecuritiesAvailableforsaleandHeldtomaturityAmortizedCost

afl:JapanNationalGovernment



Period End2020-03-312019-12-31
Value5278651726
Percentage of DebtSecuritiesAvailableforsaleandHeldtomaturityAmortizedCost100.0100.0

us-gaap:InvestmentType

afl:DebtSecuritiesAvailableforsaleandHeldtomaturityFairValue

afl:JapanNationalGovernment



Period End2020-03-312019-12-31
Value6302062584
Percentage of DebtSecuritiesAvailableforsaleandHeldtomaturityFairValue100.0100.0

afl:DebtSecuritiesHeldtoMaturityNetCarryingAmount



Period End2020-03-31
Value23278
Percentage of DebtSecuritiesHeldtoMaturityNetCarryingAmount100.0

us-gaap:Currency

currency:JPY



Period End2020-03-31
Value23278
Percentage of DebtSecuritiesHeldtoMaturityNetCarryingAmount100.0

us-gaap:Currency, us-gaap:InvestmentType

currency:JPY, us-gaap:CorporateDebtSecurities



Period End2020-03-31
Value23
Percentage of DebtSecuritiesHeldtoMaturityNetCarryingAmount0.1

currency:JPY, us-gaap:ForeignGovernmentDebtSecurities



Period End2020-03-31
Value22384
Percentage of DebtSecuritiesHeldtoMaturityNetCarryingAmount96.2

currency:JPY, us-gaap:MunicipalBonds



Period End2020-03-31
Value362
Percentage of DebtSecuritiesHeldtoMaturityNetCarryingAmount1.6

currency:JPY, us-gaap:PublicUtilityBonds



Period End2020-03-31
Value45
Percentage of DebtSecuritiesHeldtoMaturityNetCarryingAmount0.2

currency:JPY, us-gaap:SovereignDebt



Period End2020-03-31
Value464
Percentage of DebtSecuritiesHeldtoMaturityNetCarryingAmount2.0

afl:DerivativeAssetFairValueAmountOffsetAgainstCollateralNotSubjecttoMasterNettingAgreement



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value89169147201178183190202241151148142146127102
Percentage of DerivativeAssetFairValueAmountOffsetAgainstCollateralNotSubjecttoMasterNettingAgreement100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TransactionType

us-gaap:OverTheCounter



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value89169147201178183190151
Percentage of DerivativeAssetFairValueAmountOffsetAgainstCollateralNotSubjecttoMasterNettingAgreement100.0100.0100.0100.0100.0100.0100.0100.0

afl:DerivativeAssetFairValueAmountOffsetAgainstCollateralSubjecttoMasterNettingAgreement



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value15321141413330002107
Percentage of DerivativeAssetFairValueAmountOffsetAgainstCollateralSubjecttoMasterNettingAgreement100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.00.0100.0

us-gaap:TransactionType

afl:OvertheCounterCleared



Period End2020-03-312019-12-312018-12-31
Value1030
Percentage of DerivativeAssetFairValueAmountOffsetAgainstCollateralSubjecttoMasterNettingAgreement66.7100.00.0

us-gaap:OverTheCounter



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value501267130
Percentage of DerivativeAssetFairValueAmountOffsetAgainstCollateralSubjecttoMasterNettingAgreement33.30.057.142.950.0100.0100.00.0

us-gaap:ConsolidatedEntities

afl:DerivativeAssetsAmortizedCostDisclosure

us-gaap:VariableInterestEntityPrimaryBeneficiary



Period End2020-03-312019-12-31
Value89169
Percentage of DerivativeAssetsAmortizedCostDisclosure100.0100.0

us-gaap:ConsolidatedEntities

afl:DerivativeLiabilitiesAmortizedCostDisclosure

us-gaap:VariableInterestEntityPrimaryBeneficiary



Period End2020-03-312019-12-31
Value235126
Percentage of DerivativeLiabilitiesAmortizedCostDisclosure100.0100.0

afl:DerivativeLiabilityFairValueAmountOffsetAgainstCollateralNotSubjecttoMasterNettingAgreement



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value2351261391071081021019186128132133125146293
Percentage of DerivativeLiabilityFairValueAmountOffsetAgainstCollateralNotSubjecttoMasterNettingAgreement100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TransactionType

us-gaap:OverTheCounter



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value235126139107108102101128
Percentage of DerivativeLiabilityFairValueAmountOffsetAgainstCollateralNotSubjecttoMasterNettingAgreement100.0100.0100.0100.0100.0100.0100.0100.0

afl:DerivativeLiabilityFairValueAmountOffsetAgainstCollateralSubjecttoMasterNettingAgreement



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value82156629285614295-18836
Percentage of DerivativeLiabilityFairValueAmountOffsetAgainstCollateralSubjecttoMasterNettingAgreement100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TransactionType

us-gaap:OverTheCounter



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value8215662928569
Percentage of DerivativeLiabilityFairValueAmountOffsetAgainstCollateralSubjecttoMasterNettingAgreement100.0100.0100.0100.0100.0100.0100.0100.0

afl:Financialinstrumentsamountofassetsoffsetagainstcollateral



Period 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
Value104172168215192184193205271151148144127
Percentage of Financialinstrumentsamountofassetsoffsetagainstcollateral100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

afl:Financialinstrumentsamountofliabilitiesoffsetagainstcollateral



Period 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
Value334157179134147153200179207151150148162
Percentage of Financialinstrumentsamountofliabilitiesoffsetagainstcollateral100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TransactionType

afl:Securitieslendingandsimilararrangements



Period 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
Value171634211023437411914131613
Percentage of Financialinstrumentsamountofliabilitiesoffsetagainstcollateral5.110.219.015.76.815.021.541.357.59.38.710.88.0

afl:GrossAmountsofRecognizedFinancialInstrumentsOffsettingAssets



Period 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
Value34242342256620622360144623574095604692398811901720
Percentage of GrossAmountsofRecognizedFinancialInstrumentsOffsettingAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TransactionType

afl:Securitieslendingandsimilararrangements



Period 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
Value295218602155153619591029192736385249592509647513
Percentage of GrossAmountsofRecognizedFinancialInstrumentsOffsettingAssets86.279.484.074.583.071.281.888.886.864.151.554.429.8

afl:GrossAmountsofRecognizedFinancialInstrumentsOffsettingLiabilities



Period 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
Value3692246225921904233414392467407957211080149617842524
Percentage of GrossAmountsofRecognizedFinancialInstrumentsOffsettingLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TransactionType

afl:Securitieslendingandsimilararrangements



Period 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
Value296918762189155719691052197037125368606522663526
Percentage of GrossAmountsofRecognizedFinancialInstrumentsOffsettingLiabilities80.476.284.581.884.473.179.991.093.856.134.937.220.8

afl:LiabilitiesFairValueDisclosureFinancialInstrumentsCarriedAtCost



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value14219141691347313361131891294312225124401273412394124001241612316120701337112849120021144511433115901292911740115031227411780109561093210244492650155040418644013607
Percentage of LiabilitiesFairValueDisclosureFinancialInstrumentsCarriedAtCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueInputsLevel1



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value0000000000506507000000000000000000000
Percentage of LiabilitiesFairValueDisclosureFinancialInstrumentsCarriedAtCost0.00.00.00.00.00.00.00.00.00.04.14.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FairValueInputsLevel2



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value660766635855576358095606506651105146528847804783522600000000000000000000
Percentage of LiabilitiesFairValueDisclosureFinancialInstrumentsCarriedAtCost46.547.043.543.144.043.341.441.140.442.738.538.542.40.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FairValueInputsLevel3



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value761275067618759873807337715973307588710671147126709012070133711284912002114451143311590129291174011503122741178010956109321024449265015504041863607
Percentage of LiabilitiesFairValueDisclosureFinancialInstrumentsCarriedAtCost53.553.056.556.956.056.758.658.959.657.357.457.457.6100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

afl:MiddleMarketLoanProgramUnfundedAmount



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value099361301275615590761091331471359123317553
Percentage of MiddleMarketLoanProgramUnfundedAmount0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

afl:NetAmountsofFinancialInstrumentsPresentedinBalanceSheetOffsettingAssets



Period 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
Value34242342256620622360144623574095604692398811901720
Percentage of NetAmountsofFinancialInstrumentsPresentedinBalanceSheetOffsettingAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TransactionType

afl:Securitieslendingandsimilararrangements



Period 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
Value295218602155153619591029192736385249592509647513
Percentage of NetAmountsofFinancialInstrumentsPresentedinBalanceSheetOffsettingAssets86.279.484.074.583.071.281.888.886.864.151.554.429.8

afl:NetAmountsofFinancialInstrumentsPresentedinBalanceSheetOffsettingLiabilities



Period 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
Value3692246225921904233414392467407957211080149617842524
Percentage of NetAmountsofFinancialInstrumentsPresentedinBalanceSheetOffsettingLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TransactionType

afl:Securitieslendingandsimilararrangements



Period 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
Value296918762189155719691052197037125368606522663526
Percentage of NetAmountsofFinancialInstrumentsPresentedinBalanceSheetOffsettingLiabilities80.476.284.581.884.473.179.991.093.856.134.937.220.8

us-gaap:AdjustmentsForNewAccountingPronouncements

afl:NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionReclassificationFromHeldToMaturityToAvailableForSaleDebtSecurities

afl:AccountingStandardsUpdate201904



Period End2020-01-01
Value7000
Percentage of NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionReclassificationFromHeldToMaturityToAvailableForSaleDebtSecurities100.0

us-gaap:Range, us-gaap:StatementScenario, us-gaap:AdjustmentsForNewAccountingPronouncements

srt:Maximum, srt:ScenarioForecast, afl:AccountingStandardsUpdate201904



Period End2020-01-01
Value8000
Percentage of NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionReclassificationFromHeldToMaturityToAvailableForSaleDebtSecurities114.3

srt:Minimum, srt:ScenarioForecast, afl:AccountingStandardsUpdate201904



Period End2020-01-01
Value6000
Percentage of NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionReclassificationFromHeldToMaturityToAvailableForSaleDebtSecurities85.7

us-gaap:Range, us-gaap:StatementScenario, us-gaap:AdjustmentsForNewAccountingPronouncements

afl:NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionUnRealizedGainLossNetOfTaxReclassificationToAccumulatedOtherComprehensiveIncome

srt:Maximum, srt:ScenarioForecast, afl:AccountingStandardsUpdate201904



Period End2020-01-01
Value1000
Percentage of NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionUnRealizedGainLossNetOfTaxReclassificationToAccumulatedOtherComprehensiveIncome100.0

srt:Minimum, srt:ScenarioForecast, afl:AccountingStandardsUpdate201904



Period End2020-01-01
Value600
Percentage of NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionUnRealizedGainLossNetOfTaxReclassificationToAccumulatedOtherComprehensiveIncome60.0

afl:ObligationToReturnCashOrSecuritiesReceivedAsCollateral



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-03-312009-12-312008-12-31
Value2969187621891557196910521970371253686065226631482526105382683094190710232615219370252972331358206281506207627765911921938388583382441911474864831733
Percentage of ObligationToReturnCashOrSecuritiesReceivedAsCollateral100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

afl:OtherInvestmentsCarriedatAmortizedCost



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value2930303325694565425329460830172011163013091174795415252118
Percentage of OtherInvestmentsCarriedatAmortizedCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

afl:OtherInvestmentsCarriedatAmortizedCostFairValueDisclosure



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value29303033256919651953164590300220001616128811428014212531186626
Percentage of OtherInvestmentsCarriedatAmortizedCostFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueInputsLevel2



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value2930303325262519151515000000000
Percentage of OtherInvestmentsCarriedatAmortizedCostFairValueDisclosure100.0100.0100.0100.0100.00.40.40.40.30.50.80.00.00.00.00.00.00.00.00.0

us-gaap:FairValueInputsLevel3



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value000006893649452974575298719851616128811428014212531186626
Percentage of OtherInvestmentsCarriedatAmortizedCostFairValueDisclosure0.00.00.00.00.099.699.699.699.799.599.2100.0100.0100.0100.0100.0100.0100.0100.0100.0

afl:OtherInvestmentsCarriedatFairValueFairValueDisclosure



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value892628722677543152215757138141276299207198176182173171
Percentage of OtherInvestmentsCarriedatFairValueFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueInputsLevel1



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value892628722677543152215757138141276299207198176182173171
Percentage of OtherInvestmentsCarriedatFairValueFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

afl:OtherPolicyholdersFundsFairValueDisclosure



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-31
Value73387234734173207110706768967060730768416849685968246540737773276649616061565962600559056428679463915715559148735151
Percentage of OtherPolicyholdersFundsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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us-gaap:FairValueInputsLevel3



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-31
Value73387234734173207110706768967060730768416849685968246540737773276649616061565962600559056428679463915715559148735151
Percentage of OtherPolicyholdersFundsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidatedEntities

afl:Otherinvestmentsfairvaluedisclosure

us-gaap:VariableInterestEntityNotPrimaryBeneficiary



Period End2020-03-312019-12-31
Value11974
Percentage of Otherinvestmentsfairvaluedisclosure100.0100.0

us-gaap:VariableInterestEntityPrimaryBeneficiary



Period End2020-03-312019-12-31
Value550494
Percentage of Otherinvestmentsfairvaluedisclosure462.2667.6

us-gaap:StatementBusinessSegments

afl:PercentageOfCompanyAssets

afl:AflacJapan



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value0.840.830.840.850.840.840.840.850.850.830.830.840.840.830.840.850.840.830.830.830.820.820.850.850.850.850.850.850.860.870.880.870.870.870.870.870.860.860.85
Percentage of PercentageOfCompanyAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentType

afl:PercentofLoansandLeasesReceivableGrossCarryingValue

afl:Commercialmortgageloans



Period End2020-03-312019-12-312018-12-31
Value0.160.1770.154
Percentage of PercentofLoansandLeasesReceivableGrossCarryingValue100.0100.0100.0

afl:Middlemarketloans



Period End2020-03-312019-12-312018-12-31
Value0.3210.2530.214
Percentage of PercentofLoansandLeasesReceivableGrossCarryingValue200.6142.9139.0

afl:Transitionalrealestateloans



Period End2020-03-312019-12-312018-12-31
Value0.5190.570.632
Percentage of PercentofLoansandLeasesReceivableGrossCarryingValue324.4322.0410.4

us-gaap:MortgageLoansOnRealEstateDescriptionTypeOfProperty, us-gaap:InvestmentType

srt:ApartmentBuilding, afl:Commercialmortgageloans



Period End2020-03-312019-12-312018-12-31
Value0.0540.0590.053
Percentage of PercentofLoansandLeasesReceivableGrossCarryingValue33.833.334.4

srt:ApartmentBuilding, afl:Transitionalrealestateloans



Period End2020-03-312019-12-312018-12-31
Value0.190.2170.246
Percentage of PercentofLoansandLeasesReceivableGrossCarryingValue118.8122.6159.7

srt:Hotel, afl:Transitionalrealestateloans



Period End2020-03-312019-12-312018-12-31
Value0.0940.1080.076
Percentage of PercentofLoansandLeasesReceivableGrossCarryingValue58.861.049.4

srt:IndustrialProperty, afl:Commercialmortgageloans



Period End2020-03-312019-12-312018-12-31
Value0.0370.040.014
Percentage of PercentofLoansandLeasesReceivableGrossCarryingValue23.122.69.1

srt:IndustrialProperty, afl:Transitionalrealestateloans



Period End2020-03-312019-12-312018-12-31
Value0.0160.0270.036
Percentage of PercentofLoansandLeasesReceivableGrossCarryingValue10.015.323.4

srt:OfficeBuilding, afl:Commercialmortgageloans



Period End2020-03-312019-12-312018-12-31
Value0.0380.0430.041
Percentage of PercentofLoansandLeasesReceivableGrossCarryingValue23.824.326.6

srt:OfficeBuilding, afl:Transitionalrealestateloans



Period End2020-03-312019-12-312018-12-31
Value0.180.1870.233
Percentage of PercentofLoansandLeasesReceivableGrossCarryingValue112.5105.6151.3

srt:OtherProperty, afl:Transitionalrealestateloans



Period End2020-03-312019-12-312018-12-31
Value0.0240.0170.02
Percentage of PercentofLoansandLeasesReceivableGrossCarryingValue15.09.613.0

srt:RetailSite, afl:Commercialmortgageloans



Period End2020-03-312019-12-312018-12-31
Value0.0310.0350.046
Percentage of PercentofLoansandLeasesReceivableGrossCarryingValue19.419.829.9

srt:RetailSite, afl:Transitionalrealestateloans



Period End2020-03-312019-12-312018-12-31
Value0.0150.0140.021
Percentage of PercentofLoansandLeasesReceivableGrossCarryingValue9.47.913.6

us-gaap:ProductOrService, us-gaap:StatementBusinessSegments

afl:Reinsurancedeferredprofitliability

afl:Closedblock, afl:AflacJapan



Period End2020-03-312019-12-312019-09-302018-12-31
Value1000100011001000
Percentage of Reinsurancedeferredprofitliability100.0100.0100.0100.0

afl:SecuritiesCollateralAssetsNotOffsetinBalanceSheet



Period 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
Value7724101102310323430000
Percentage of SecuritiesCollateralAssetsNotOffsetinBalanceSheet100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

afl:SecuritiesCollateralLiabilitiesNotOffsetinBalanceSheet



Period 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
Value1752225017653719573362456116971130
Percentage of SecuritiesCollateralLiabilitiesNotOffsetinBalanceSheet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Currency, us-gaap:FinancialInstrument, us-gaap:InvestmentType

afl:SecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses

currency:JPY, us-gaap:FixedMaturities, afl:BanksAndFinancialInstitutions



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value15100000-86
Percentage of SecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses100.00.00.00.00.00.0100.0

currency:JPY, us-gaap:FixedMaturities, us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value3200000-2
Percentage of SecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses21.20.00.00.00.00.02.3

currency:JPY, us-gaap:FixedMaturities, us-gaap:ForeignGovernmentDebtSecurities



Period End2020-03-312019-03-312018-12-312018-09-30
Value000-150
Percentage of SecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses0.00.00.0174.4

currency:JPY, us-gaap:FixedMaturities, us-gaap:MunicipalBonds



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value100000-9
Percentage of SecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses0.70.00.00.00.00.010.5

currency:JPY, us-gaap:FixedMaturities, us-gaap:PublicUtilityBonds



Period End2020-03-312018-12-312018-09-30
Value00-3
Percentage of SecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses0.00.03.5

currency:USD, us-gaap:FixedMaturities, afl:BanksAndFinancialInstitutions



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value81-66315-9
Percentage of SecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses5.30.00.00.00.00.010.5

currency:USD, us-gaap:FixedMaturities, us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value461-78-12311385671-587
Percentage of SecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses305.30.00.00.00.00.0682.6

currency:USD, us-gaap:FixedMaturities, us-gaap:PublicUtilityBonds



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value12-2-1241857-51
Percentage of SecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses7.90.00.00.00.00.059.3

currency:USD, us-gaap:FixedMaturities, us-gaap:SovereignDebt



Period End2020-03-31
Value0.0
Percentage of SecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses0.0

us-gaap:FinancialInstrument

us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value665-79-14121406743-897
Percentage of SecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses440.40.00.00.00.00.01043.0

us-gaap:Currency, us-gaap:FinancialInstrument, us-gaap:InvestmentType

afl:SecuritiesContinuousUnrealizedLossPositionAggregateLosses

currency:JPY, us-gaap:FixedMaturities, afl:BanksAndFinancialInstitutions



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value557-17-12-311498834
Percentage of SecuritiesContinuousUnrealizedLossPositionAggregateLosses100.0100.0100.0100.0100.0100.0100.0

currency:JPY, us-gaap:FixedMaturities, us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value389303254036
Percentage of SecuritiesContinuousUnrealizedLossPositionAggregateLosses69.8-17.6-0.0-9.716.845.5105.9

currency:JPY, us-gaap:FixedMaturities, us-gaap:ForeignGovernmentDebtSecurities



Period End2020-03-312019-03-312018-12-312018-09-30
Value142-286276
Percentage of SecuritiesContinuousUnrealizedLossPositionAggregateLosses2.51.3-325.0811.8

currency:JPY, us-gaap:FixedMaturities, us-gaap:MunicipalBonds



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value120-23-88
Percentage of SecuritiesContinuousUnrealizedLossPositionAggregateLosses0.2-11.8-0.06.52.0-9.123.5

currency:JPY, us-gaap:FixedMaturities, us-gaap:PublicUtilityBonds



Period End2020-03-312018-12-312018-09-30
Value9326
Percentage of SecuritiesContinuousUnrealizedLossPositionAggregateLosses16.72.317.6

currency:JPY, us-gaap:FixedMaturities, us-gaap:SovereignDebt



Period End2020-03-312018-09-30
Value27-29
Percentage of SecuritiesContinuousUnrealizedLossPositionAggregateLosses4.8-85.3

currency:USD, us-gaap:FixedMaturities, afl:BanksAndFinancialInstitutions



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value21-4-611316-11
Percentage of SecuritiesContinuousUnrealizedLossPositionAggregateLosses3.823.550.0-3.28.718.2-32.4

currency:USD, us-gaap:FixedMaturities, us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value988-149-142-59598334-205
Percentage of SecuritiesContinuousUnrealizedLossPositionAggregateLosses177.4876.51183.3190.3401.3379.5-602.9

currency:USD, us-gaap:FixedMaturities, us-gaap:PublicUtilityBonds



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value50-2-15-53214-12
Percentage of SecuritiesContinuousUnrealizedLossPositionAggregateLosses9.011.8125.016.121.515.9-35.3

currency:USD, us-gaap:FixedMaturities, us-gaap:SovereignDebt



Period End2020-03-31
Value1000000.0
Percentage of SecuritiesContinuousUnrealizedLossPositionAggregateLosses0.2

us-gaap:FinancialInstrument

us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value2141-167-175-96823195114
Percentage of SecuritiesContinuousUnrealizedLossPositionAggregateLosses384.4982.41458.3309.7552.3221.6335.3

us-gaap:Currency, us-gaap:FinancialInstrument, us-gaap:InvestmentType

afl:SecuritiesContinuousUnrealizedLossPositionFairValue

currency:JPY, us-gaap:FixedMaturities, afl:BanksAndFinancialInstitutions



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value341018281795186222293057280623441507
Percentage of SecuritiesContinuousUnrealizedLossPositionFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0

currency:JPY, us-gaap:FixedMaturities, us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value282963646271352513061134409440
Percentage of SecuritiesContinuousUnrealizedLossPositionFairValue83.034.825.738.323.642.740.417.429.2

currency:JPY, us-gaap:FixedMaturities, us-gaap:ForeignGovernmentDebtSecurities



Period End2020-03-312019-03-312018-12-312018-09-302018-06-302017-12-31
Value7251393604922136475255
Percentage of SecuritiesContinuousUnrealizedLossPositionFairValue21.36.2117.9328.6155.6348.7

currency:JPY, us-gaap:FixedMaturities, us-gaap:MunicipalBonds



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value5680141470148224137129
Percentage of SecuritiesContinuousUnrealizedLossPositionFairValue1.64.40.80.83.14.88.05.88.6

currency:JPY, us-gaap:FixedMaturities, us-gaap:PublicUtilityBonds



Period End2020-03-312018-12-312018-09-302018-06-302017-12-31
Value88060438126883
Percentage of SecuritiesContinuousUnrealizedLossPositionFairValue25.819.813.611.45.5

currency:JPY, us-gaap:FixedMaturities, us-gaap:SovereignDebt



Period End2020-03-312018-09-302018-06-302017-12-31
Value70143286309
Percentage of SecuritiesContinuousUnrealizedLossPositionFairValue20.61.512.220.5

currency:USD, us-gaap:FixedMaturities, afl:BanksAndFinancialInstitutions



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value35579223284345625552696362
Percentage of SecuritiesContinuousUnrealizedLossPositionFairValue10.44.312.415.315.520.419.729.724.0

currency:USD, us-gaap:FixedMaturities, us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value824442615447795791821289911731130447741
Percentage of SecuritiesContinuousUnrealizedLossPositionFairValue241.8233.1303.5427.3411.9421.9418.1556.5513.7

currency:USD, us-gaap:FixedMaturities, us-gaap:PublicUtilityBonds



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value825306305597808158517261664785
Percentage of SecuritiesContinuousUnrealizedLossPositionFairValue24.216.717.032.136.251.861.571.052.1

currency:USD, us-gaap:FixedMaturities, us-gaap:SovereignDebt



Period End2020-03-312018-06-30
Value1813
Percentage of SecuritiesContinuousUnrealizedLossPositionFairValue0.50.6

us-gaap:FinancialInstrument

us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value1804371908246114271341624484284692293316685
Percentage of SecuritiesContinuousUnrealizedLossPositionFairValue529.1393.3459.4613.7601.9800.91014.6978.41107.2

us-gaap:Currency, us-gaap:FinancialInstrument, us-gaap:InvestmentType

afl:SecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue

currency:JPY, us-gaap:FixedMaturities, afl:BanksAndFinancialInstitutions



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value26261828179518622229305728061478394
Percentage of SecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0

currency:JPY, us-gaap:FixedMaturities, us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value267763646271352513061134294349
Percentage of SecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue101.934.825.738.323.642.740.419.988.6

currency:JPY, us-gaap:FixedMaturities, us-gaap:ForeignGovernmentDebtSecurities



Period End2020-03-312019-03-312018-12-312018-09-302018-06-302017-12-31
Value7251393604922101264
Percentage of SecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue27.66.2117.9328.60.0320.8

currency:JPY, us-gaap:FixedMaturities, us-gaap:MunicipalBonds



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value42801414701482241310
Percentage of SecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue1.64.40.80.83.14.88.00.92.5

currency:JPY, us-gaap:FixedMaturities, us-gaap:PublicUtilityBonds



Period End2020-03-312018-12-312018-09-302018-06-302017-12-31
Value8806043811800
Percentage of SecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue33.519.813.612.20.0

currency:JPY, us-gaap:FixedMaturities, us-gaap:SovereignDebt



Period End2020-03-312018-09-302018-06-302017-12-31
Value70143286309
Percentage of SecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue26.71.519.478.4

currency:USD, us-gaap:FixedMaturities, afl:BanksAndFinancialInstitutions



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value32118115110209340517561316
Percentage of SecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue12.21.06.45.99.411.118.438.080.2

currency:USD, us-gaap:FixedMaturities, us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value542779213692125314957821129183912839
Percentage of SecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue206.743.376.3114.1141.3189.1402.4567.7720.6

currency:USD, us-gaap:FixedMaturities, us-gaap:PublicUtilityBonds



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value701695811630689217211200221
Percentage of SecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue26.73.83.26.213.729.261.381.256.1

currency:USD, us-gaap:FixedMaturities, us-gaap:SovereignDebt



Period End2020-03-312018-06-30
Value1813
Percentage of SecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue0.70.9

us-gaap:FinancialInstrument

us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value1411834233813494067451638927989128225776
Percentage of SecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue537.6187.3212.4265.3302.6536.1997.5867.51466.0

us-gaap:Currency, us-gaap:FinancialInstrument, us-gaap:InvestmentType

afl:SecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue

currency:JPY, us-gaap:FixedMaturities, afl:BanksAndFinancialInstitutions



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value7840000008661113
Percentage of SecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue100.00.00.00.00.00.00.0100.0100.0

currency:JPY, us-gaap:FixedMaturities, us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value15200000011591
Percentage of SecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue19.40.00.00.00.00.00.013.38.2

currency:JPY, us-gaap:FixedMaturities, us-gaap:ForeignGovernmentDebtSecurities



Period End2020-03-312019-03-312018-12-312018-09-302018-06-302017-12-31
Value000036473991
Percentage of SecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue0.00.00.00.0421.1358.6

currency:JPY, us-gaap:FixedMaturities, us-gaap:MunicipalBonds



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value14000000124119
Percentage of SecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue1.80.00.00.00.00.00.014.310.7

currency:JPY, us-gaap:FixedMaturities, us-gaap:PublicUtilityBonds



Period End2020-03-312018-12-312018-09-302018-06-302017-12-31
Value0008883
Percentage of SecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue0.00.00.010.27.5

currency:USD, us-gaap:FixedMaturities, afl:BanksAndFinancialInstitutions



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value34611081741362853513546
Percentage of SecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue4.30.00.00.00.00.00.015.64.1

currency:USD, us-gaap:FixedMaturities, us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value28173469407858326033711744046534902
Percentage of SecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue359.30.00.00.00.00.00.0537.3440.4

currency:USD, us-gaap:FixedMaturities, us-gaap:PublicUtilityBonds



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value1242372474815026935464564
Percentage of SecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue15.80.00.00.00.00.00.053.650.7

us-gaap:FinancialInstrument

us-gaap:FixedMaturities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value3925376744336487667180954801011110909
Percentage of SecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue500.60.00.00.00.00.00.01167.6980.1

afl:TotalFinancialInstrumentAssetsNotCarriedatFairValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-31
Value34057396843904738662373683726336963365883798534447340093424335710345243956738761357673357734242
Percentage of TotalFinancialInstrumentAssetsNotCarriedatFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

afl:TotalFinancialInstrumentLiabilitiesNotCarriedAtFairValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value1401913725135161350112951129111223812439127691220612197122121217511998133891245511746112761127711495124071129911119118561145510752106859959427843663346
Percentage of TotalFinancialInstrumentLiabilitiesNotCarriedAtFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

afl:TotalPolicyLiabilities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-03-312009-12-312008-12-31
Value107552106554107530106989103680103188100584102310105399991479871398458976249372610555610306694128876318718584581855648393390200954249289089402939379062692951979491053289941393004945939299286366824918245678913695046924566219
Percentage of TotalPolicyLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivablePortfolioSegment

afl:WeightedAverageDebtServiceCoverageRatio

afl:Commercialmortgageloans



Period End2020-03-31
Value2.29
Percentage of WeightedAverageDebtServiceCoverageRatio100.0

us-gaap:FinancingReceivablePortfolioSegment, afl:YearofOrigination

afl:Commercialmortgageloans, afl:CurrentFiscalYear



Period End2020-03-31
Value1.84
Percentage of WeightedAverageDebtServiceCoverageRatio80.3

afl:Commercialmortgageloans, afl:OriginatedFiveorMoreYearsbeforeLatestFiscalYear



Period End2020-03-31
Value0.0
Percentage of WeightedAverageDebtServiceCoverageRatio0.0

afl:Commercialmortgageloans, afl:OriginatedFourYearsbeforeLatestFiscalYear



Period End2020-03-31
Value2.3
Percentage of WeightedAverageDebtServiceCoverageRatio100.4

afl:Commercialmortgageloans, afl:OriginatedThreeYearsbeforeLatestFiscalYear



Period End2020-03-31
Value2.37
Percentage of WeightedAverageDebtServiceCoverageRatio103.5

afl:Commercialmortgageloans, afl:OriginatedTwoYearsbeforeLatestFiscalYear



Period End2020-03-31
Value2.16
Percentage of WeightedAverageDebtServiceCoverageRatio94.3

afl:Commercialmortgageloans, afl:OriginatedinFiscalYearbeforeLatestFiscalYear



Period End2020-03-31
Value2.33
Percentage of WeightedAverageDebtServiceCoverageRatio101.7

us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanToValue

afl:Commercialmortgageloans, afl:LoantoValueRatioSeventytoSeventyninePointNineninePercent



Period End2020-03-31
Value1.32
Percentage of WeightedAverageDebtServiceCoverageRatio57.6

afl:Commercialmortgageloans, afl:LoantoValueRatioSixtytoSixtyninePointNineNinePercent



Period End2020-03-31
Value1.74
Percentage of WeightedAverageDebtServiceCoverageRatio76.0

afl:Commercialmortgageloans, afl:LoantoValueRatioZerotoFiftyninePointNineninePercent



Period End2020-03-31
Value2.43
Percentage of WeightedAverageDebtServiceCoverageRatio106.1

us-gaap:AccruedInvestmentIncomeReceivable



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-03-312009-12-312008-12-31
Value734772734785728773735769745769730760723754776806750768733759728762770826774798775820765842793813746802766739746738709654649650
Percentage of AccruedInvestmentIncomeReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302009-12-312008-12-31
Value60438548897080556561423442404836520659645437517344744805612064414684298632143384502646723402291519441035143-198198125702260147014481143702752-1633594-640-1211
Percentage of AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-03-312009-12-31
Value-35-33-33-27-26-24-24-23-21-23-23-23-22-24-19-19-24-26-28-27-28-26-17-11-13-12-8-11-9-5541966-531-2-9-3
Percentage of AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-03-312009-12-312008-12-31
Value27727720720920621219419519716316816917016814314314013912512512612680828281178178180183189168167171135125126128107105107121
Percentage of AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-03-312009-12-312008-12-31
Value-1543-1623-1479-1455-1848-1847-2113-1766-1303-1750-1715-1580-1650-1983-594-847-1584-2196-2533-2725-2540-2541-1805-1216-1542-1505-418-453-141333101186571811091109914862926809412776750
Percentage of AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdditionalPaidInCapitalCommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-03-312009-12-312008-12-31
Value233423132277224722082177215121172089212020772048200819761936190518661828180717721745171117261698166716441605156215321505147314531433140813881372135013201289124812281184
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap: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
Value10246098070100119977449380188788872169128995018892158866987948851228304491030891857969772996719827071375155739017748973863698356406963233616746245963964
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:ConsolidatedEntities

us-gaap:VariableInterestEntityNotPrimaryBeneficiary



Period End2020-03-312019-12-31
Value65167194
Percentage of AssetsFairValueDisclosure6.47.3

us-gaap:VariableInterestEntityPrimaryBeneficiary



Period End2020-03-312019-12-31
Value1316212990
Percentage of AssetsFairValueDisclosure12.813.2

us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueInputsLevel1



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value410184104442320412184008738356352913845040420346583495634914341423182233375323792758223684217442047322922235312617021751204151748515372141571480114319
Percentage of AssetsFairValueDisclosure40.041.942.342.242.743.240.542.142.538.839.439.740.138.336.736.334.632.430.229.030.531.833.829.429.227.324.323.023.722.4

us-gaap:FairValueInputsLevel2



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value605175609056937556505292049682512295211753905539765316552535505605085357218563485173548961498834989851723498635094851672489674603147215469064703146049
Percentage of AssetsFairValueDisclosure59.157.256.956.956.456.058.757.156.760.560.059.759.461.262.963.264.967.169.370.668.867.565.770.070.171.874.776.175.372.0

us-gaap:FairValueInputsLevel3



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value925936862876794750696722693581548499420369437458380351355342510507371440453553646611627359645153970
Percentage of AssetsFairValueDisclosure0.91.00.90.90.80.80.80.80.70.70.60.60.50.40.50.50.50.50.50.50.70.70.50.60.60.91.01.01.05.60.00.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-31
Value106111226613002119491002677337591838689981016596779355850487221074511518900166278136
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Currency

currency:JPY



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value66457410810980336763530847225582
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax62.660.462.467.267.568.662.254.9

currency:USD



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value39664856489339163263242528694403
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax37.439.637.632.832.531.437.843.3

us-gaap:Currency, us-gaap:InvestmentType

currency:JPY, afl:BanksAndFinancialInstitutions



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value404700694700597502602811
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax3.85.75.35.96.06.57.98.0

currency:JPY, us-gaap:AssetBackedSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value3125282927222129
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax0.30.20.20.20.30.30.30.3

currency:JPY, us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value753944956932824649683809
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax7.17.77.47.88.28.49.08.0

currency:JPY, us-gaap:ForeignGovernmentDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value47665169585858004813370029553363
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax44.942.145.148.548.047.838.933.1

currency:JPY, us-gaap:MunicipalBonds



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value22811612512093322528
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax2.10.91.01.00.90.40.30.3

currency:JPY, us-gaap:PublicUtilityBonds



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value430406395392344280303352
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax4.13.33.03.33.43.64.03.5

currency:JPY, us-gaap:SovereignDebt



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value3350536065123133190
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax0.30.40.40.50.61.61.81.9

currency:USD, afl:BanksAndFinancialInstitutions



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value545646652566484389431633
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax5.15.35.04.74.85.05.76.2

currency:USD, us-gaap:AssetBackedSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value877778812
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax0.10.10.10.10.10.10.10.1

currency:USD, us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value25313255320524922061134316772620
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax23.926.524.720.920.617.422.125.8

currency:USD, us-gaap:MunicipalBonds



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value145141155133105120123168
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax1.41.11.21.11.01.61.61.7

currency:USD, us-gaap:PublicUtilityBonds



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value649725785634522496562884
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax6.15.96.05.35.26.47.48.7

currency:USD, us-gaap:SovereignDebt



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value6573747373606173
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax0.60.60.60.60.70.80.80.7

currency:USD, us-gaap:USTreasuryAndGovernment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value2391511119713
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax0.20.10.10.10.10.10.10.1

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-31
Value2141375536709808169415471440157280710751159138410921094136315571796710
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Currency

currency:JPY



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value1081113119129164435648350
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax50.530.122.218.220.325.741.943.4

currency:USD



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value10602624175806441259899454
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax49.569.977.881.879.774.358.156.3

us-gaap:Currency, us-gaap:InvestmentType

currency:JPY, afl:BanksAndFinancialInstitutions



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value557869810613923815953
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax26.022.918.315.017.214.010.36.6

currency:JPY, us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value3892420222044367
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax18.26.43.73.12.52.62.30.9

currency:JPY, us-gaap:ForeignGovernmentDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value140002140426271
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax0.70.00.00.00.28.327.533.6

currency:JPY, us-gaap:MunicipalBonds



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value1311391712
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax0.00.80.20.10.40.51.11.5

currency:JPY, us-gaap:PublicUtilityBonds



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value930000496
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax4.30.00.00.00.00.20.60.7

currency:JPY, us-gaap:SovereignDebt



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value270000011
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax1.30.00.00.00.00.00.10.1

currency:USD, afl:BanksAndFinancialInstitutions



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value2148141335198
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax1.01.11.52.01.62.11.21.0

currency:USD, us-gaap:AssetBackedSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value0.00.00.00.00.01000000.01000000.00.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax0.00.00.00.00.00.10.10.0

currency:USD, us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value9882483975395981109775418
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax46.166.174.176.074.065.550.151.8

currency:USD, us-gaap:MunicipalBonds



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value000008120
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax0.00.00.00.00.00.50.80.0

currency:USD, us-gaap:PublicUtilityBonds



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value50101227321059127
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax2.32.72.23.84.06.25.93.3

currency:USD, us-gaap:SovereignDebt



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value1000000.00.00.00.00.00.00.00.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax0.00.00.00.00.00.00.00.0

currency:USD, us-gaap:USTreasuryAndGovernment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value0.00.00.00.01000000.01000000.01000000.01000000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax0.00.00.00.00.10.10.10.1

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value87881793718147481195787067685676252789358160775132
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConsolidatedEntities

srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIE



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value846737606377880774667495073007722077444370594
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis96.395.895.695.495.295.094.794.394.0

us-gaap:VariableInterestEntityNotPrimaryBeneficiary



Period End2020-03-312019-12-31
Value59994129
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis6.85.2

us-gaap:VariableInterestEntityPrimaryBeneficiary



Period End2020-03-312019-12-31
Value32083308
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis3.74.2

us-gaap:Currency

currency:JPY



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value5383145684470604700245249440274276240378
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis61.357.657.857.957.557.356.153.7

currency:USD



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value3405033687344143419333457328293349034754
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis38.742.442.242.142.542.743.946.3

us-gaap:Currency, us-gaap:InvestmentType

currency:JPY, afl:BanksAndFinancialInstitutions



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value71596152638461265664544053174742
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis8.17.87.87.57.27.17.06.3

currency:JPY, us-gaap:AssetBackedSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value306229235237233155151242
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis0.30.30.30.30.30.20.20.3

currency:JPY, us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value78175323526053335043485246184085
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis8.96.76.56.66.46.36.15.4

currency:JPY, us-gaap:ForeignGovernmentDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value3185330929320763215431238306372949927980
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis36.239.039.439.639.739.938.737.2

currency:JPY, us-gaap:MunicipalBonds



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value984516524525509385376314
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis1.10.70.60.60.60.50.50.4

currency:JPY, us-gaap:PublicUtilityBonds



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value44121855186418651822173216851635
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis5.02.32.32.32.32.32.22.2

currency:JPY, us-gaap:SovereignDebt



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value130068071776274082611161380
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis1.50.90.90.90.91.11.51.8

currency:USD, afl:BanksAndFinancialInstitutions



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value28482879302028802798286027672808
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis3.23.63.73.53.63.73.63.7

currency:USD, us-gaap:AssetBackedSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value152149139143147155154161
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis0.20.20.20.20.20.20.20.2

currency:USD, us-gaap:CorporateDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value2553325246256552557925001233112398325384
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis29.131.831.531.531.830.331.533.8

currency:USD, us-gaap:MunicipalBonds



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value1084107710951198120413431339872
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis1.21.41.31.51.51.71.81.2

currency:USD, us-gaap:PublicUtilityBonds



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value38443804391839413841477248635116
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis4.44.84.84.94.96.26.46.8

currency:USD, us-gaap:SovereignDebt



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value239239240257276251248267
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis0.30.30.30.30.40.30.30.4

currency:USD, us-gaap:USTreasuryAndGovernment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value350293347195190137136146
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis0.40.40.40.20.20.20.20.2

us-gaap:AvailableForSaleSecuritiesDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312009-12-312008-12-31
Value962889126293940924358792482895822968588189033843133678135012
Percentage of AvailableForSaleSecuritiesDebtSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashAndCashEquivalentsFairValueDisclosure



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value414848964216301938924337342938474080349149274264420548595270370034494350352031034363465826662252199425432749238825962041
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueInputsLevel1



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value414848964216301938924337342938474080349149274264420548595270370034494350352031034363465826662252199425432749238825962041
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdjustmentsForNewAccountingPronouncements, us-gaap:StatementEquityComponents

us-gaap:CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption

afl:AccountingStandardsUpdate201904, us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss



Period End2020-01-01
Value848
Percentage of CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption100.0

us-gaap:StatementScenario, us-gaap:AdjustmentsForNewAccountingPronouncements, us-gaap:StatementEquityComponents

srt:ScenarioForecast, afl:AccountingStandardsUpdate201904, us-gaap:RetainedEarnings



Period End2020-01-01
Value-56
Percentage of CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption-6.6

us-gaap:DebtAndCapitalLeaseObligations



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value675865696233623159005778527953155372528952485252525053605765500949845011500954256282528245584925491348974953494642834352440136723964328533013044
Percentage of DebtAndCapitalLeaseObligations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrument

afl:SeniorNotesFourPointSevenFiveZeroPercentDueJanuaryTwentyFortyNine



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value5415415405405405400
Percentage of DebtAndCapitalLeaseObligations8.08.28.78.79.29.30.0

afl:SeniorNotesFourPointZeroZeroPercentDueFebruaryTwentyTwentyTwo



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value03483483483483483483483483483463463463483483483483503503503503503503503493493493493493493493493490
Percentage of DebtAndCapitalLeaseObligations0.05.35.65.65.96.06.66.56.56.66.66.66.66.56.06.97.07.07.06.55.66.67.77.17.17.17.07.18.18.07.99.58.80.0

afl:SeniorNotesFourPointZeroZeroPercentDueOctoberTwentyFortySix



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302015-12-31
Value3933943943943943943943943943943943943943943930
Percentage of DebtAndCapitalLeaseObligations5.86.06.36.36.76.87.57.47.37.47.57.57.57.46.80.0

afl:SeniorNotesOnePointFourEightEightPercentDueOctoberTwentyThirtyThree



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value1391381401401361360
Percentage of DebtAndCapitalLeaseObligations2.12.12.22.22.32.40.0

afl:SeniorNotesOnePointOneFiveNinePercentDueOctoberTwentyThirty



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value2682662702702622620
Percentage of DebtAndCapitalLeaseObligations4.04.04.34.34.44.50.0

afl:SeniorNotesOnePointOneTwoTwoPercentDueDecemberTwentyThirtyNine



Period End2020-03-312019-12-312018-12-31
Value57570
Percentage of DebtAndCapitalLeaseObligations0.80.90.0

afl:SeniorNotesOnePointSevenFiveZeroPercentDueOctoberTwentyThirtyEight



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value8181828279790
Percentage of DebtAndCapitalLeaseObligations1.21.21.31.31.31.40.0

afl:SeniorNotesPointEightFourThreePercentDueDecemberTwentyThirtyOne



Period End2020-03-312019-12-312018-12-31
Value85840
Percentage of DebtAndCapitalLeaseObligations1.31.30.0

afl:SeniorNotesPointEightThreeZeroPercentDueMarchTwentyThirtyFIve



Period End2020-03-312019-12-31
Value970
Percentage of DebtAndCapitalLeaseObligations1.40.0

afl:SeniorNotesPointFiveFiveZeroPercentDueMarchTwentyThirty



Period End2020-03-312019-12-31
Value1210
Percentage of DebtAndCapitalLeaseObligations1.80.0

afl:SeniorNotesPointFiveZeroZeroPercentDueDecemberTwentyTwentyNine



Period End2020-03-312019-12-312018-12-31
Value1151140
Percentage of DebtAndCapitalLeaseObligations1.71.70.0

afl:SeniorNotesPointNineThreeFourPercentDueDecemberTwentyThirtyFour



Period End2020-03-312019-12-312018-12-31
Value89880
Percentage of DebtAndCapitalLeaseObligations1.31.30.0

afl:SeniorNotesPointNineThreeTwoPercentDueJanuaryTwentyTwentySeven



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value5495455535545385385255405625285295325310
Percentage of DebtAndCapitalLeaseObligations8.18.38.98.99.19.39.910.210.510.010.110.110.10.0

afl:SeniorNotesPointSevenFiveZeroPercentDueMarchTwentyThirtyTwo



Period End2020-03-312019-12-31
Value1890
Percentage of DebtAndCapitalLeaseObligations2.80.0

afl:SeniorNotesPointThreeZeroZeroPercentDueSeptemberTwentyTwentyNine



Period End2020-03-312019-12-31
Value1130
Percentage of DebtAndCapitalLeaseObligations1.70.0

afl:SeniorNotesSixPointFourFivePercentDueAugustTwentyForty



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-31
Value254254254254254254254254254254256256255254445445444448448448448448448448448448448448448448448448448448448
Percentage of DebtAndCapitalLeaseObligations3.83.94.14.14.34.44.84.84.74.84.94.94.94.77.78.98.98.98.98.37.18.59.89.19.19.19.09.110.510.310.212.211.313.614.7

afl:SeniorNotesSixPointNineZeroPercentDueDecemberTwentyThirtyNine



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-31
Value220220220220220220220220220220221221221220394394393397397397397397396396396396396396396396396396396396396
Percentage of DebtAndCapitalLeaseObligations3.33.33.53.53.73.84.24.14.14.24.24.24.24.16.87.97.97.97.97.36.37.58.78.08.18.18.08.09.29.19.010.810.012.113.0

afl:SeniorNotesThreePointSixTwoFivePercentDueJuneTwentyTwentyThree



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-31
Value6986986986986986986986976976976946946936966966966967007007007007007007007007007007000
Percentage of DebtAndCapitalLeaseObligations10.310.611.211.211.812.113.213.113.013.213.213.213.213.012.113.914.014.014.012.911.113.315.414.214.214.314.114.20.0

afl:SeniorNotesThreePointSixTwoFivePercentDueNovemberTwentyTwentyFour



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value7477477467467467467467467467457437437427457457447447497497497497490
Percentage of DebtAndCapitalLeaseObligations11.111.412.012.012.612.914.114.013.914.114.214.114.113.912.914.914.914.915.013.811.914.20.0

afl:SeniorNotesThreePointTwoFivePercentDueMarchTwentyTwentyFive



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value4484484484484484474474464464464454454444454454454464484484484480
Percentage of DebtAndCapitalLeaseObligations6.66.87.27.27.67.78.58.48.38.48.58.58.58.37.78.98.98.98.98.37.10.0

afl:SeniorNotesTwoPointEightSevenFivePercentDueOctoberTwentyTwentySix



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302015-12-31
Value2982982982982972972972972972972982982982982980
Percentage of DebtAndCapitalLeaseObligations4.44.54.84.85.05.15.65.65.55.65.75.75.75.65.20.0

afl:SubordinatedBondsPointNineSixThreePercentDueAprilTwentyFortyNine



Period End2020-03-312019-12-312018-12-31
Value2742720
Percentage of DebtAndCapitalLeaseObligations4.14.10.0

afl:SubordinatedNotesTwoPointOneZeroEightPercentDueOctoberTwentyFortySeven



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value5475435515525365365235385595260
Percentage of DebtAndCapitalLeaseObligations8.18.38.88.99.19.39.910.110.49.90.0

afl:YendenominatedLoanVariableInterestRateDueSeptemberTwentyTwentyNine



Period End2020-03-312019-12-312018-12-31
Value228227225
Percentage of DebtAndCapitalLeaseObligations3.43.53.9

afl:YendenominatedLoanVariableInterestRateDueSeptemberTwentyTwentySix



Period End2020-03-312019-12-312019-09-302018-12-31
Value46454645
Percentage of DebtAndCapitalLeaseObligations0.70.70.70.8

us-gaap:DebtSecuritiesAvailableForSaleAllowanceForCreditLoss



Period End2020-03-31
Value63
Percentage of DebtSecuritiesAvailableForSaleAllowanceForCreditLoss100.0

us-gaap:ConsolidatedEntities

srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIE



Period End2020-03-31
Value63
Percentage of DebtSecuritiesAvailableForSaleAllowanceForCreditLoss100.0

us-gaap:Currency

currency:JPY



Period End2020-03-31
Value0.0
Percentage of DebtSecuritiesAvailableForSaleAllowanceForCreditLoss0.0

currency:USD



Period End2020-03-31
Value63
Percentage of DebtSecuritiesAvailableForSaleAllowanceForCreditLoss100.0

us-gaap:Currency, us-gaap:InvestmentType

currency:JPY, afl:BanksAndFinancialInstitutions



Period End2020-03-31
Value0.0
Percentage of DebtSecuritiesAvailableForSaleAllowanceForCreditLoss0.0

currency:JPY, us-gaap:AssetBackedSecurities



Period End2020-03-31
Value0.0
Percentage of DebtSecuritiesAvailableForSaleAllowanceForCreditLoss0.0

currency:JPY, us-gaap:CorporateDebtSecurities



Period End2020-03-31
Value0.0
Percentage of DebtSecuritiesAvailableForSaleAllowanceForCreditLoss0.0

currency:JPY, us-gaap:ForeignGovernmentDebtSecurities



Period End2020-03-31
Value0.0
Percentage of DebtSecuritiesAvailableForSaleAllowanceForCreditLoss0.0

currency:JPY, us-gaap:MunicipalBonds



Period End2020-03-31
Value0.0
Percentage of DebtSecuritiesAvailableForSaleAllowanceForCreditLoss0.0

currency:JPY, us-gaap:PublicUtilityBonds



Period End2020-03-31
Value0.0
Percentage of DebtSecuritiesAvailableForSaleAllowanceForCreditLoss0.0

currency:JPY, us-gaap:SovereignDebt



Period End2020-03-31
Value0.0
Percentage of DebtSecuritiesAvailableForSaleAllowanceForCreditLoss0.0

currency:USD, afl:BanksAndFinancialInstitutions



Period End2020-03-31
Value0.0
Percentage of DebtSecuritiesAvailableForSaleAllowanceForCreditLoss0.0

currency:USD, us-gaap:AssetBackedSecurities



Period End2020-03-31
Value0.0
Percentage of DebtSecuritiesAvailableForSaleAllowanceForCreditLoss0.0

currency:USD, us-gaap:CorporateDebtSecurities



Period End2020-03-31
Value63
Percentage of DebtSecuritiesAvailableForSaleAllowanceForCreditLoss100.0

currency:USD, us-gaap:MunicipalBonds



Period End2020-03-31
Value0.0
Percentage of DebtSecuritiesAvailableForSaleAllowanceForCreditLoss0.0

currency:USD, us-gaap:PublicUtilityBonds



Period End2020-03-31
Value0.0
Percentage of DebtSecuritiesAvailableForSaleAllowanceForCreditLoss0.0

currency:USD, us-gaap:SovereignDebt



Period End2020-03-31
Value0.0
Percentage of DebtSecuritiesAvailableForSaleAllowanceForCreditLoss0.0

currency:USD, us-gaap:USTreasuryAndGovernment



Period End2020-03-31
Value0.0
Percentage of DebtSecuritiesAvailableForSaleAllowanceForCreditLoss0.0

us-gaap:DebtSecuritiesHeldToMaturityAllowanceForCreditLoss



Period End2020-03-31
Value9
Percentage of DebtSecuritiesHeldToMaturityAllowanceForCreditLoss100.0

us-gaap:Currency

currency:JPY



Period End2020-03-31
Value9
Percentage of DebtSecuritiesHeldToMaturityAllowanceForCreditLoss100.0

us-gaap:Currency, us-gaap:InvestmentType

currency:JPY, us-gaap:CorporateDebtSecurities



Period End2020-03-31
Value0.0
Percentage of DebtSecuritiesHeldToMaturityAllowanceForCreditLoss0.0

currency:JPY, us-gaap:ForeignGovernmentDebtSecurities



Period End2020-03-31
Value3
Percentage of DebtSecuritiesHeldToMaturityAllowanceForCreditLoss33.3

currency:JPY, us-gaap:MunicipalBonds



Period End2020-03-31
Value0.0
Percentage of DebtSecuritiesHeldToMaturityAllowanceForCreditLoss0.0

currency:JPY, us-gaap:PublicUtilityBonds



Period End2020-03-31
Value1000000.0
Percentage of DebtSecuritiesHeldToMaturityAllowanceForCreditLoss11.1

currency:JPY, us-gaap:SovereignDebt



Period End2020-03-31
Value5
Percentage of DebtSecuritiesHeldToMaturityAllowanceForCreditLoss55.6

us-gaap:DeferredPolicyAcquisitionCosts



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31