00000049772021FYFALSEhttp://fasb.org/us-gaap/2021-01-31#DebtAndCapitalLeaseObligationshttp://fasb.org/us-gaap/2021-01-31#DebtAndCapitalLeaseObligationshttp://fasb.org/us-gaap/2021-01-31#DebtAndCapitalLeaseObligationshttp://fasb.org/us-gaap/2021-01-31#DebtAndCapitalLeaseObligationsP3YP3Y00000049772021-01-012021-12-310000004977exch:XNYS2021-01-012021-12-3100000049772021-06-30iso4217:USD00000049772022-02-16xbrli:shares00000049772020-01-012020-12-3100000049772019-01-012019-12-31iso4217:USDxbrli:shares0000004977afl:SeniorNotesThreePointSixTwoFivePercentDueJuneTwentyTwentyThreeMember2021-01-012021-12-310000004977afl:SeniorNotesFourPointZeroZeroPercentDueFebruaryTwentyTwentyTwoMember2020-01-012020-12-310000004977srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember2021-12-310000004977srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember2020-12-310000004977us-gaap:VariableInterestEntityPrimaryBeneficiaryMember2021-12-310000004977us-gaap:VariableInterestEntityPrimaryBeneficiaryMember2020-12-3100000049772021-12-3100000049772020-12-310000004977us-gaap:CommonStockMember2018-12-310000004977us-gaap:AdditionalPaidInCapitalMember2018-12-310000004977us-gaap:RetainedEarningsMember2018-12-310000004977us-gaap:AccumulatedOtherComprehensiveIncomeMember2018-12-310000004977us-gaap:TreasuryStockMember2018-12-3100000049772018-12-310000004977us-gaap:CommonStockMember2019-01-012019-12-310000004977us-gaap:AdditionalPaidInCapitalMember2019-01-012019-12-310000004977us-gaap:RetainedEarningsMember2019-01-012019-12-310000004977us-gaap:AccumulatedOtherComprehensiveIncomeMember2019-01-012019-12-310000004977us-gaap:TreasuryStockMember2019-01-012019-12-310000004977us-gaap:CommonStockMember2019-12-310000004977us-gaap:AdditionalPaidInCapitalMember2019-12-310000004977us-gaap:RetainedEarningsMember2019-12-310000004977us-gaap:AccumulatedOtherComprehensiveIncomeMember2019-12-310000004977us-gaap:TreasuryStockMember2019-12-3100000049772019-12-310000004977us-gaap:CommonStockMemberus-gaap:AccountingStandardsUpdate201613Membersrt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2019-12-310000004977us-gaap:AdditionalPaidInCapitalMemberus-gaap:AccountingStandardsUpdate201613Membersrt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2019-12-310000004977us-gaap:AccountingStandardsUpdate201613Memberus-gaap:RetainedEarningsMembersrt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2019-12-310000004977us-gaap:AccumulatedOtherComprehensiveIncomeMemberus-gaap:AccountingStandardsUpdate201613Membersrt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2019-12-310000004977us-gaap:TreasuryStockMemberus-gaap:AccountingStandardsUpdate201613Membersrt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2019-12-310000004977us-gaap:AccountingStandardsUpdate201613Membersrt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2019-12-310000004977us-gaap:CommonStockMemberus-gaap:AccountingStandardsUpdate201904Membersrt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2019-12-310000004977us-gaap:AccountingStandardsUpdate201904Memberus-gaap:AdditionalPaidInCapitalMembersrt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2019-12-310000004977us-gaap:AccountingStandardsUpdate201904Memberus-gaap:RetainedEarningsMembersrt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2019-12-310000004977us-gaap:AccountingStandardsUpdate201904Memberus-gaap:AccumulatedOtherComprehensiveIncomeMembersrt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2019-12-310000004977us-gaap:TreasuryStockMemberus-gaap:AccountingStandardsUpdate201904Membersrt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2019-12-310000004977us-gaap:AccountingStandardsUpdate201904Membersrt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2019-12-310000004977us-gaap:CommonStockMembersrt:CumulativeEffectPeriodOfAdoptionAdjustedBalanceMember2019-12-310000004977srt:CumulativeEffectPeriodOfAdoptionAdjustedBalanceMemberus-gaap:AdditionalPaidInCapitalMember2019-12-310000004977srt:CumulativeEffectPeriodOfAdoptionAdjustedBalanceMemberus-gaap:RetainedEarningsMember2019-12-310000004977srt:CumulativeEffectPeriodOfAdoptionAdjustedBalanceMemberus-gaap:AccumulatedOtherComprehensiveIncomeMember2019-12-310000004977us-gaap:TreasuryStockMembersrt:CumulativeEffectPeriodOfAdoptionAdjustedBalanceMember2019-12-310000004977srt:CumulativeEffectPeriodOfAdoptionAdjustedBalanceMember2019-12-310000004977us-gaap:CommonStockMember2020-01-012020-12-310000004977us-gaap:AdditionalPaidInCapitalMember2020-01-012020-12-310000004977us-gaap:RetainedEarningsMember2020-01-012020-12-310000004977us-gaap:AccumulatedOtherComprehensiveIncomeMember2020-01-012020-12-310000004977us-gaap:TreasuryStockMember2020-01-012020-12-310000004977us-gaap:CommonStockMember2020-12-310000004977us-gaap:AdditionalPaidInCapitalMember2020-12-310000004977us-gaap:RetainedEarningsMember2020-12-310000004977us-gaap:AccumulatedOtherComprehensiveIncomeMember2020-12-310000004977us-gaap:TreasuryStockMember2020-12-310000004977us-gaap:CommonStockMember2021-01-012021-12-310000004977us-gaap:AdditionalPaidInCapitalMember2021-01-012021-12-310000004977us-gaap:RetainedEarningsMember2021-01-012021-12-310000004977us-gaap:AccumulatedOtherComprehensiveIncomeMember2021-01-012021-12-310000004977us-gaap:TreasuryStockMember2021-01-012021-12-310000004977us-gaap:CommonStockMember2021-12-310000004977us-gaap:AdditionalPaidInCapitalMember2021-12-310000004977us-gaap:RetainedEarningsMember2021-12-310000004977us-gaap:AccumulatedOtherComprehensiveIncomeMember2021-12-310000004977us-gaap:TreasuryStockMember2021-12-310000004977afl:AssociateStockBonusMember2021-01-012021-12-310000004977afl:AssociateStockBonusMember2020-01-012020-12-310000004977afl:AssociateStockBonusMember2019-01-012019-12-310000004977afl:ShareholderDividendReinvestmentMember2021-01-012021-12-310000004977afl:ShareholderDividendReinvestmentMember2020-01-012020-12-310000004977afl:ShareholderDividendReinvestmentMember2019-01-012019-12-310000004977afl:ShareBasedCompensationGrantsMember2021-01-012021-12-310000004977afl:ShareBasedCompensationGrantsMember2020-01-012020-12-310000004977afl:ShareBasedCompensationGrantsMember2019-01-012019-12-31afl:segment0000004977afl:AflacJapanMember2021-01-012021-12-31xbrli:pure0000004977afl:AflacJapanMember2020-01-012020-12-310000004977afl:AflacJapanMember2019-01-012019-12-310000004977afl:AflacJapanMember2021-12-310000004977afl:AflacJapanMember2020-12-310000004977us-gaap:AccountingStandardsUpdate201904Membersrt:RevisionOfPriorPeriodAccountingStandardsUpdateAdjustmentMember2019-12-310000004977us-gaap:AccountingStandardsUpdate201904Member2020-01-010000004977us-gaap:AccountingStandardsUpdate201602Member2019-01-010000004977us-gaap:AccountingStandardsUpdate201613Memberus-gaap:RetainedEarningsMembersrt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2020-01-010000004977srt:ProFormaMembersrt:MinimumMemberus-gaap:AccountingStandardsUpdate201812Membersrt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2021-01-010000004977srt:ProFormaMemberus-gaap:AccountingStandardsUpdate201812Membersrt:MaximumMembersrt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2021-01-010000004977afl:CancerMemberafl:AflacJapanMember2021-01-012021-12-310000004977afl:CancerMemberafl:AflacJapanMember2020-01-012020-12-310000004977afl:CancerMemberafl:AflacJapanMember2019-01-012019-12-310000004977afl:MedicalAndOtherHealthMemberafl:AflacJapanMember2021-01-012021-12-310000004977afl:MedicalAndOtherHealthMemberafl:AflacJapanMember2020-01-012020-12-310000004977afl:MedicalAndOtherHealthMemberafl:AflacJapanMember2019-01-012019-12-310000004977us-gaap:LifeInsuranceSegmentMemberafl:AflacJapanMember2021-01-012021-12-310000004977us-gaap:LifeInsuranceSegmentMemberafl:AflacJapanMember2020-01-012020-12-310000004977us-gaap:LifeInsuranceSegmentMemberafl:AflacJapanMember2019-01-012019-12-310000004977afl:AccidentAndDisabilityMemberafl:AflacUSMember2021-01-012021-12-310000004977afl:AccidentAndDisabilityMemberafl:AflacUSMember2020-01-012020-12-310000004977afl:AccidentAndDisabilityMemberafl:AflacUSMember2019-01-012019-12-310000004977afl:CancerMemberafl:AflacUSMember2021-01-012021-12-310000004977afl:CancerMemberafl:AflacUSMember2020-01-012020-12-310000004977afl:CancerMemberafl:AflacUSMember2019-01-012019-12-310000004977afl:OtherHealthMemberafl:AflacUSMember2021-01-012021-12-310000004977afl:OtherHealthMemberafl:AflacUSMember2020-01-012020-12-310000004977afl:OtherHealthMemberafl:AflacUSMember2019-01-012019-12-310000004977us-gaap:LifeInsuranceSegmentMemberafl:AflacUSMember2021-01-012021-12-310000004977us-gaap:LifeInsuranceSegmentMemberafl:AflacUSMember2020-01-012020-12-310000004977us-gaap:LifeInsuranceSegmentMemberafl:AflacUSMember2019-01-012019-12-310000004977afl:AflacUSMember2021-01-012021-12-310000004977afl:AflacUSMember2020-01-012020-12-310000004977afl:AflacUSMember2019-01-012019-12-310000004977us-gaap:AllOtherSegmentsMember2021-01-012021-12-310000004977us-gaap:AllOtherSegmentsMember2020-01-012020-12-310000004977us-gaap:AllOtherSegmentsMember2019-01-012019-12-310000004977us-gaap:CorporateAndOtherMember2021-01-012021-12-310000004977afl:AflacUSMember2021-12-310000004977afl:AflacUSMember2020-12-310000004977us-gaap:AllOtherSegmentsMember2021-12-310000004977us-gaap:AllOtherSegmentsMember2020-12-31iso4217:JPYiso4217:USD0000004977us-gaap:AssetsTotalMember2021-12-310000004977us-gaap:AssetsTotalMember2020-12-310000004977us-gaap:LiabilitiesTotalMember2021-12-310000004977us-gaap:LiabilitiesTotalMember2020-12-310000004977srt:MaximumMemberus-gaap:BuildingMember2021-01-012021-12-310000004977us-gaap:MachineryAndEquipmentMembersrt:MaximumMember2021-01-012021-12-310000004977us-gaap:FurnitureAndFixturesMembersrt:MaximumMember2021-01-012021-12-310000004977us-gaap:FixedMaturitiesMember2021-01-012021-12-310000004977us-gaap:FixedMaturitiesMember2020-01-012020-12-310000004977us-gaap:FixedMaturitiesMember2019-01-012019-12-310000004977us-gaap:EquitySecuritiesMember2021-01-012021-12-310000004977us-gaap:EquitySecuritiesMember2020-01-012020-12-310000004977us-gaap:EquitySecuritiesMember2019-01-012019-12-310000004977us-gaap:LoansReceivableMember2021-01-012021-12-310000004977us-gaap:LoansReceivableMember2020-01-012020-12-310000004977us-gaap:LoansReceivableMember2019-01-012019-12-310000004977us-gaap:OtherInvestmentsMember2021-01-012021-12-310000004977us-gaap:OtherInvestmentsMember2020-01-012020-12-310000004977us-gaap:OtherInvestmentsMember2019-01-012019-12-310000004977afl:ShortTermInvestmentsAndCashEquivalentsMember2021-01-012021-12-310000004977afl:ShortTermInvestmentsAndCashEquivalentsMember2020-01-012020-12-310000004977afl:ShortTermInvestmentsAndCashEquivalentsMember2019-01-012019-12-310000004977currency:JPYus-gaap:ForeignGovernmentDebtSecuritiesMember2021-12-310000004977currency:JPYus-gaap:MunicipalBondsMember2021-12-310000004977currency:JPYus-gaap:AssetBackedSecuritiesMember2021-12-310000004977currency:JPYus-gaap:PublicUtilityBondsMember2021-12-310000004977us-gaap:SovereignDebtMembercurrency:JPY2021-12-310000004977currency:JPYafl:BanksAndFinancialInstitutionsMember2021-12-310000004977us-gaap:CorporateDebtSecuritiesMembercurrency:JPY2021-12-310000004977currency:JPY2021-12-310000004977us-gaap:USTreasuryAndGovernmentMembercurrency:USD2021-12-310000004977us-gaap:MunicipalBondsMembercurrency:USD2021-12-310000004977us-gaap:AssetBackedSecuritiesMembercurrency:USD2021-12-310000004977us-gaap:PublicUtilityBondsMembercurrency:USD2021-12-310000004977us-gaap:SovereignDebtMembercurrency:USD2021-12-310000004977currency:USDafl:BanksAndFinancialInstitutionsMember2021-12-310000004977us-gaap:CorporateDebtSecuritiesMembercurrency:USD2021-12-310000004977currency:USD2021-12-310000004977currency:JPYus-gaap:ForeignGovernmentDebtSecuritiesMember2020-12-310000004977currency:JPYus-gaap:MunicipalBondsMember2020-12-310000004977currency:JPYus-gaap:AssetBackedSecuritiesMember2020-12-310000004977currency:JPYus-gaap:PublicUtilityBondsMember2020-12-310000004977us-gaap:SovereignDebtMembercurrency:JPY2020-12-310000004977currency:JPYafl:BanksAndFinancialInstitutionsMember2020-12-310000004977us-gaap:CorporateDebtSecuritiesMembercurrency:JPY2020-12-310000004977currency:JPY2020-12-310000004977us-gaap:USTreasuryAndGovernmentMembercurrency:USD2020-12-310000004977us-gaap:MunicipalBondsMembercurrency:USD2020-12-310000004977us-gaap:AssetBackedSecuritiesMembercurrency:USD2020-12-310000004977us-gaap:PublicUtilityBondsMembercurrency:USD2020-12-310000004977us-gaap:SovereignDebtMembercurrency:USD2020-12-310000004977currency:USDafl:BanksAndFinancialInstitutionsMember2020-12-310000004977us-gaap:CorporateDebtSecuritiesMembercurrency:USD2020-12-310000004977currency:USD2020-12-310000004977currency:SGD2021-12-310000004977currency:SGD2020-12-31afl:investment0000004977afl:JapanNationalGovernmentMember2021-01-012021-12-310000004977afl:JapanNationalGovernmentMember2021-12-310000004977afl:JapanNationalGovernmentMember2020-01-012020-12-310000004977afl:JapanNationalGovernmentMember2020-12-310000004977us-gaap:DebtSecuritiesMember2021-01-012021-12-310000004977us-gaap:DebtSecuritiesMember2020-01-012020-12-310000004977us-gaap:DebtSecuritiesMember2019-01-012019-12-310000004977us-gaap:EquitySecuritiesMember2021-01-012021-12-310000004977us-gaap:EquitySecuritiesMember2020-01-012020-12-310000004977us-gaap:EquitySecuritiesMember2019-01-012019-12-310000004977afl:DerivativesAndOtherMember2021-01-012021-12-310000004977afl:DerivativesAndOtherMember2020-01-012020-12-310000004977afl:DerivativesAndOtherMember2019-01-012019-12-310000004977us-gaap:DebtSecuritiesMemberus-gaap:AvailableforsaleSecuritiesMember2021-01-012021-12-310000004977us-gaap:DebtSecuritiesMemberus-gaap:AvailableforsaleSecuritiesMember2020-01-012020-12-310000004977us-gaap:DebtSecuritiesMemberus-gaap:AvailableforsaleSecuritiesMember2019-01-012019-12-310000004977us-gaap:FixedMaturitiesMemberus-gaap:USTreasuryAndGovernmentMembercurrency:USD2021-12-310000004977us-gaap:FixedMaturitiesMembercurrency:JPYus-gaap:ForeignGovernmentDebtSecuritiesMember2021-12-310000004977us-gaap:FixedMaturitiesMembercurrency:USDus-gaap:MunicipalBondsMember2021-12-310000004977us-gaap:FixedMaturitiesMembercurrency:JPYus-gaap:MunicipalBondsMember2021-12-310000004977us-gaap:FixedMaturitiesMemberus-gaap:AssetBackedSecuritiesMembercurrency:USD2021-12-310000004977us-gaap:FixedMaturitiesMembercurrency:JPYus-gaap:AssetBackedSecuritiesMember2021-12-310000004977us-gaap:FixedMaturitiesMemberus-gaap:PublicUtilityBondsMembercurrency:USD2021-12-310000004977us-gaap:FixedMaturitiesMembercurrency:JPYus-gaap:PublicUtilityBondsMember2021-12-310000004977us-gaap:SovereignDebtMemberus-gaap:FixedMaturitiesMembercurrency:USD2021-12-310000004977us-gaap:FixedMaturitiesMembercurrency:USDafl:BanksAndFinancialInstitutionsMember2021-12-310000004977us-gaap:FixedMaturitiesMembercurrency:JPYafl:BanksAndFinancialInstitutionsMember2021-12-310000004977us-gaap:FixedMaturitiesMemberus-gaap:CorporateDebtSecuritiesMembercurrency:USD2021-12-310000004977us-gaap:FixedMaturitiesMemberus-gaap:CorporateDebtSecuritiesMembercurrency:JPY2021-12-310000004977us-gaap:FixedMaturitiesMember2021-12-310000004977us-gaap:FixedMaturitiesMembercurrency:JPYus-gaap:ForeignGovernmentDebtSecuritiesMember2020-12-310000004977us-gaap:FixedMaturitiesMembercurrency:USDus-gaap:MunicipalBondsMember2020-12-310000004977us-gaap:FixedMaturitiesMembercurrency:JPYus-gaap:MunicipalBondsMember2020-12-310000004977us-gaap:FixedMaturitiesMemberus-gaap:AssetBackedSecuritiesMembercurrency:USD2020-12-310000004977us-gaap:FixedMaturitiesMembercurrency:JPYus-gaap:AssetBackedSecuritiesMember2020-12-310000004977us-gaap:FixedMaturitiesMemberus-gaap:PublicUtilityBondsMembercurrency:USD2020-12-310000004977us-gaap:FixedMaturitiesMembercurrency:JPYus-gaap:PublicUtilityBondsMember2020-12-310000004977us-gaap:SovereignDebtMemberus-gaap:FixedMaturitiesMembercurrency:USD2020-12-310000004977us-gaap:FixedMaturitiesMembercurrency:USDafl:BanksAndFinancialInstitutionsMember2020-12-310000004977us-gaap:FixedMaturitiesMembercurrency:JPYafl:BanksAndFinancialInstitutionsMember2020-12-310000004977us-gaap:FixedMaturitiesMemberus-gaap:CorporateDebtSecuritiesMembercurrency:USD2020-12-310000004977us-gaap:FixedMaturitiesMemberus-gaap:CorporateDebtSecuritiesMembercurrency:JPY2020-12-310000004977us-gaap:FixedMaturitiesMember2020-12-310000004977afl:TransitionalrealestateloansMembersrt:OfficeBuildingMember2021-12-310000004977afl:TransitionalrealestateloansMembersrt:OfficeBuildingMember2020-12-310000004977srt:RetailSiteMemberafl:TransitionalrealestateloansMember2021-12-310000004977srt:RetailSiteMemberafl:TransitionalrealestateloansMember2020-12-310000004977srt:ApartmentBuildingMemberafl:TransitionalrealestateloansMember2021-12-310000004977srt:ApartmentBuildingMemberafl:TransitionalrealestateloansMember2020-12-310000004977srt:IndustrialPropertyMemberafl:TransitionalrealestateloansMember2021-12-310000004977srt:IndustrialPropertyMemberafl:TransitionalrealestateloansMember2020-12-310000004977srt:HotelMemberafl:TransitionalrealestateloansMember2021-12-310000004977srt:HotelMemberafl:TransitionalrealestateloansMember2020-12-310000004977srt:OtherPropertyMemberafl:TransitionalrealestateloansMember2021-12-310000004977srt:OtherPropertyMemberafl:TransitionalrealestateloansMember2020-12-310000004977afl:TransitionalrealestateloansMember2021-12-310000004977afl:TransitionalrealestateloansMember2020-12-310000004977afl:CommercialmortgageloansMembersrt:OfficeBuildingMember2021-12-310000004977afl:CommercialmortgageloansMembersrt:OfficeBuildingMember2020-12-310000004977srt:RetailSiteMemberafl:CommercialmortgageloansMember2021-12-310000004977srt:RetailSiteMemberafl:CommercialmortgageloansMember2020-12-310000004977srt:ApartmentBuildingMemberafl:CommercialmortgageloansMember2021-12-310000004977srt:ApartmentBuildingMemberafl:CommercialmortgageloansMember2020-12-310000004977afl:CommercialmortgageloansMembersrt:IndustrialPropertyMember2021-12-310000004977afl:CommercialmortgageloansMembersrt:IndustrialPropertyMember2020-12-310000004977afl:CommercialmortgageloansMember2021-12-310000004977afl:CommercialmortgageloansMember2020-12-310000004977afl:MiddlemarketloansMember2021-12-310000004977afl:MiddlemarketloansMember2020-12-310000004977us-gaap:MortgagesMemberafl:CommercialMortgageandTransitionalRealEstateLoansMemberstpr:CA2021-01-012021-12-310000004977us-gaap:MortgagesMemberstpr:TXafl:CommercialMortgageandTransitionalRealEstateLoansMember2021-01-012021-12-310000004977stpr:FLus-gaap:MortgagesMemberafl:CommercialMortgageandTransitionalRealEstateLoansMember2021-01-012021-12-310000004977afl:TransitionalrealestateloansMember2021-01-012021-12-310000004977afl:TransitionalrealestateloansMemberafl:LoantoValueRatioZerotoFiftyninePointNineninePercentMember2021-12-310000004977afl:TransitionalrealestateloansMemberafl:LoantoValueRatioSixtytoSixtyninePointNineNinePercentMember2021-12-310000004977afl:TransitionalrealestateloansMemberafl:LoantoValueRatioSeventytoSeventyninePointNineninePercentMember2021-12-310000004977afl:LoantoValueRatioEightyPercentandAboveMemberafl:TransitionalrealestateloansMember2021-12-310000004977afl:TransitionalrealestateloansMember2021-12-310000004977afl:CommercialmortgageloansMember2021-01-012021-12-310000004977afl:CommercialmortgageloansMemberafl:LoantoValueRatioZerotoFiftyninePointNineninePercentMember2021-12-310000004977afl:LoantoValueRatioSixtytoSixtyninePointNineNinePercentMemberafl:CommercialmortgageloansMember2021-12-310000004977afl:LoantoValueRatioSeventytoSeventyninePointNineninePercentMemberafl:CommercialmortgageloansMember2021-12-310000004977afl:LoantoValueRatioEightyPercentandAboveMemberafl:CommercialmortgageloansMember2021-12-310000004977afl:CommercialmortgageloansMember2021-12-310000004977afl:CommercialmortgageloansMemberafl:CurrentFiscalYearMember2021-12-310000004977afl:OriginatedinFiscalYearbeforeLatestFiscalYearMemberafl:CommercialmortgageloansMember2021-12-310000004977afl:OriginatedTwoYearsbeforeLatestFiscalYearMemberafl:CommercialmortgageloansMember2021-12-310000004977afl:CommercialmortgageloansMemberafl:OriginatedThreeYearsbeforeLatestFiscalYearMember2021-12-310000004977afl:OriginatedFourYearsbeforeLatestFiscalYearMemberafl:CommercialmortgageloansMember2021-12-310000004977afl:CommercialmortgageloansMemberafl:OriginatedFiveorMoreYearsbeforeLatestFiscalYearMember2021-12-310000004977afl:MiddlemarketloansMember2021-01-012021-12-310000004977afl:BBBCreditRatingMemberafl:MiddlemarketloansMember2021-12-310000004977afl:BBCreditRatingMemberafl:MiddlemarketloansMember2021-12-310000004977afl:BCreditRatingMemberafl:MiddlemarketloansMember2021-12-310000004977afl:CCCCreditRatingMemberafl:MiddlemarketloansMember2021-12-310000004977afl:MiddlemarketloansMemberafl:CCCreditRatingMember2021-12-310000004977afl:CAndLowerCreditRatingMemberafl:MiddlemarketloansMember2021-12-310000004977afl:MiddlemarketloansMember2021-12-310000004977us-gaap:FinancialAssetAcquiredAndNoCreditDeteriorationMemberus-gaap:ForeignGovernmentDebtSecuritiesMember2021-12-310000004977afl:TransitionalrealestateloansMember2019-12-310000004977afl:CommercialmortgageloansMember2019-12-310000004977afl:MiddlemarketloansMember2019-12-310000004977us-gaap:HeldtomaturitySecuritiesMember2019-12-310000004977us-gaap:AvailableforsaleSecuritiesMember2019-12-310000004977us-gaap:ReinsuranceRecoverableMember2019-12-310000004977afl:TransitionalrealestateloansMember2020-01-012020-12-310000004977afl:CommercialmortgageloansMember2020-01-012020-12-310000004977afl:MiddlemarketloansMember2020-01-012020-12-310000004977us-gaap:HeldtomaturitySecuritiesMember2020-01-012020-12-310000004977us-gaap:AvailableforsaleSecuritiesMember2020-01-012020-12-310000004977us-gaap:ReinsuranceRecoverableMember2020-01-012020-12-310000004977us-gaap:HeldtomaturitySecuritiesMember2020-12-310000004977us-gaap:AvailableforsaleSecuritiesMember2020-12-310000004977us-gaap:ReinsuranceRecoverableMember2020-12-310000004977us-gaap:HeldtomaturitySecuritiesMember2021-01-012021-12-310000004977us-gaap:AvailableforsaleSecuritiesMember2021-01-012021-12-310000004977us-gaap:ReinsuranceRecoverableMember2021-01-012021-12-310000004977us-gaap:HeldtomaturitySecuritiesMember2021-12-310000004977us-gaap:AvailableforsaleSecuritiesMember2021-12-310000004977us-gaap:ReinsuranceRecoverableMember2021-12-3100000049772020-01-012020-03-310000004977us-gaap:PolicyLoansMember2021-12-310000004977us-gaap:PolicyLoansMember2020-12-310000004977us-gaap:ShortTermInvestmentsMember2021-12-310000004977us-gaap:ShortTermInvestmentsMember2020-12-310000004977afl:LimitedPartnershipsMember2021-12-310000004977afl:LimitedPartnershipsMember2020-12-310000004977us-gaap:OtherInvestmentsMember2021-12-310000004977us-gaap:OtherInvestmentsMember2020-12-310000004977us-gaap:VariableInterestEntityPrimaryBeneficiaryMember2021-01-012021-12-310000004977us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember2021-01-012021-12-310000004977us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember2021-12-310000004977us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember2020-12-310000004977us-gaap:MaturityOvernightAndOnDemandMemberus-gaap:ForeignGovernmentDebtSecuritiesMember2021-12-310000004977us-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:MaturityUpTo30DaysMember2021-12-310000004977us-gaap:ForeignGovernmentDebtSecuritiesMember2021-12-310000004977us-gaap:MaturityOvernightAndOnDemandMemberus-gaap:ForeignGovernmentDebtSecuritiesMember2020-12-310000004977us-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:MaturityUpTo30DaysMember2020-12-310000004977us-gaap:ForeignGovernmentDebtSecuritiesMember2020-12-310000004977us-gaap:MaturityOvernightAndOnDemandMemberus-gaap:PublicUtilityBondsMember2021-12-310000004977us-gaap:PublicUtilityBondsMemberus-gaap:MaturityUpTo30DaysMember2021-12-310000004977us-gaap:PublicUtilityBondsMember2021-12-310000004977us-gaap:MaturityOvernightAndOnDemandMemberus-gaap:PublicUtilityBondsMember2020-12-310000004977us-gaap:PublicUtilityBondsMemberus-gaap:MaturityUpTo30DaysMember2020-12-310000004977us-gaap:PublicUtilityBondsMember2020-12-310000004977us-gaap:SovereignDebtMemberus-gaap:MaturityOvernightAndOnDemandMember2021-12-310000004977us-gaap:SovereignDebtMemberus-gaap:MaturityUpTo30DaysMember2021-12-310000004977us-gaap:SovereignDebtMember2021-12-310000004977us-gaap:SovereignDebtMemberus-gaap:MaturityOvernightAndOnDemandMember2020-12-310000004977us-gaap:SovereignDebtMemberus-gaap:MaturityUpTo30DaysMember2020-12-310000004977us-gaap:SovereignDebtMember2020-12-310000004977afl:BanksAndFinancialInstitutionsMemberus-gaap:MaturityOvernightAndOnDemandMember2021-12-310000004977afl:BanksAndFinancialInstitutionsMemberus-gaap:MaturityUpTo30DaysMember2021-12-310000004977afl:BanksAndFinancialInstitutionsMember2021-12-310000004977afl:BanksAndFinancialInstitutionsMemberus-gaap:MaturityOvernightAndOnDemandMember2020-12-310000004977afl:BanksAndFinancialInstitutionsMemberus-gaap:MaturityUpTo30DaysMember2020-12-310000004977afl:BanksAndFinancialInstitutionsMember2020-12-310000004977us-gaap:MaturityOvernightAndOnDemandMemberus-gaap:CorporateDebtSecuritiesMember2021-12-310000004977us-gaap:CorporateDebtSecuritiesMemberus-gaap:MaturityUpTo30DaysMember2021-12-310000004977us-gaap:CorporateDebtSecuritiesMember2021-12-310000004977us-gaap:MaturityOvernightAndOnDemandMemberus-gaap:CorporateDebtSecuritiesMember2020-12-310000004977us-gaap:CorporateDebtSecuritiesMemberus-gaap:MaturityUpTo30DaysMember2020-12-310000004977us-gaap:CorporateDebtSecuritiesMember2020-12-310000004977us-gaap:MaturityOvernightAndOnDemandMember2021-12-310000004977us-gaap:MaturityUpTo30DaysMember2021-12-310000004977us-gaap:MaturityOvernightAndOnDemandMember2020-12-310000004977us-gaap:MaturityUpTo30DaysMember2020-12-310000004977us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberus-gaap:CashFlowHedgingMemberus-gaap:CurrencySwapMember2021-12-310000004977us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberus-gaap:CashFlowHedgingMemberus-gaap:CurrencySwapMember2020-12-310000004977us-gaap:CashFlowHedgingMember2021-12-310000004977us-gaap:CashFlowHedgingMember2020-12-310000004977us-gaap:ForeignExchangeForwardMemberus-gaap:FairValueHedgingMember2021-12-310000004977us-gaap:ForeignExchangeForwardMemberus-gaap:FairValueHedgingMember2020-12-310000004977us-gaap:ForeignExchangeOptionMemberus-gaap:FairValueHedgingMember2021-12-310000004977us-gaap:ForeignExchangeOptionMemberus-gaap:FairValueHedgingMember2020-12-310000004977us-gaap:FairValueHedgingMember2021-12-310000004977us-gaap:FairValueHedgingMember2020-12-310000004977us-gaap:ForeignExchangeForwardMemberus-gaap:NetInvestmentHedgingMember2021-12-310000004977us-gaap:ForeignExchangeForwardMemberus-gaap:NetInvestmentHedgingMember2020-12-310000004977us-gaap:ForeignExchangeOptionMemberus-gaap:NetInvestmentHedgingMember2021-12-310000004977us-gaap:ForeignExchangeOptionMemberus-gaap:NetInvestmentHedgingMember2020-12-310000004977us-gaap:NetInvestmentHedgingMember2021-12-310000004977us-gaap:NetInvestmentHedgingMember2020-12-310000004977us-gaap:NondesignatedMembersrt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberus-gaap:CurrencySwapMember2021-12-310000004977us-gaap:NondesignatedMembersrt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberus-gaap:CurrencySwapMember2020-12-310000004977us-gaap:NondesignatedMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberus-gaap:CurrencySwapMember2021-12-310000004977us-gaap:NondesignatedMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberus-gaap:CurrencySwapMember2020-12-310000004977us-gaap:NondesignatedMemberus-gaap:ForeignExchangeForwardMember2021-12-310000004977us-gaap:NondesignatedMemberus-gaap:ForeignExchangeForwardMember2020-12-310000004977us-gaap:NondesignatedMemberus-gaap:ForeignExchangeOptionMember2021-12-310000004977us-gaap:NondesignatedMemberus-gaap:ForeignExchangeOptionMember2020-12-310000004977us-gaap:NondesignatedMemberus-gaap:InterestRateSwapMember2021-12-310000004977us-gaap:NondesignatedMemberus-gaap:InterestRateSwapMember2020-12-310000004977us-gaap:NondesignatedMember2021-12-310000004977us-gaap:NondesignatedMember2020-12-310000004977us-gaap:ForeignExchangeForwardMemberus-gaap:FixedMaturitiesMember2021-01-012021-12-310000004977us-gaap:ForeignExchangeOptionMemberus-gaap:FixedMaturitiesMember2021-01-012021-12-310000004977us-gaap:ForeignExchangeForwardMemberus-gaap:FixedMaturitiesMember2020-01-012020-12-310000004977us-gaap:ForeignExchangeOptionMemberus-gaap:FixedMaturitiesMember2020-01-012020-12-310000004977us-gaap:ForeignExchangeForwardMemberus-gaap:FixedMaturitiesMember2019-01-012019-12-310000004977us-gaap:ForeignExchangeOptionMemberus-gaap:FixedMaturitiesMember2019-01-012019-12-310000004977us-gaap:FixedMaturitiesMemberus-gaap:InterestRateSwaptionMember2019-01-012019-12-310000004977us-gaap:SeniorNotesMemberus-gaap:InterestRateSwapMember2021-12-310000004977us-gaap:InvestmentIncomeMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberus-gaap:CashFlowHedgingMemberus-gaap:CurrencySwapMember2021-01-012021-12-310000004977us-gaap:GainLossOnInvestmentsMember1us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberus-gaap:CashFlowHedgingMemberus-gaap:CurrencySwapMember2021-01-012021-12-310000004977us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberus-gaap:CashFlowHedgingMemberus-gaap:CurrencySwapMember2021-01-012021-12-310000004977us-gaap:InvestmentIncomeMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberus-gaap:CashFlowHedgingMemberus-gaap:CurrencySwapMember2020-01-012020-12-310000004977us-gaap:GainLossOnInvestmentsMember1us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberus-gaap:CashFlowHedgingMemberus-gaap:CurrencySwapMember2020-01-012020-12-310000004977us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberus-gaap:CashFlowHedgingMemberus-gaap:CurrencySwapMember2020-01-012020-12-310000004977us-gaap:InvestmentIncomeMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberus-gaap:CashFlowHedgingMemberus-gaap:CurrencySwapMember2019-01-012019-12-310000004977us-gaap:GainLossOnInvestmentsMember1us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberus-gaap:CashFlowHedgingMemberus-gaap:CurrencySwapMember2019-01-012019-12-310000004977us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberus-gaap:CashFlowHedgingMemberus-gaap:CurrencySwapMember2019-01-012019-12-310000004977us-gaap:InvestmentIncomeMemberus-gaap:CashFlowHedgingMember2021-01-012021-12-310000004977us-gaap:GainLossOnInvestmentsMember1us-gaap:CashFlowHedgingMember2021-01-012021-12-310000004977us-gaap:CashFlowHedgingMember2021-01-012021-12-310000004977us-gaap:InvestmentIncomeMemberus-gaap:CashFlowHedgingMember2020-01-012020-12-310000004977us-gaap:GainLossOnInvestmentsMember1us-gaap:CashFlowHedgingMember2020-01-012020-12-310000004977us-gaap:CashFlowHedgingMember2020-01-012020-12-310000004977us-gaap:InvestmentIncomeMemberus-gaap:CashFlowHedgingMember2019-01-012019-12-310000004977us-gaap:GainLossOnInvestmentsMember1us-gaap:CashFlowHedgingMember2019-01-012019-12-310000004977us-gaap:CashFlowHedgingMember2019-01-012019-12-310000004977us-gaap:GainLossOnInvestmentsMember1us-gaap:ForeignExchangeForwardMemberus-gaap:FairValueHedgingMember2021-01-012021-12-310000004977us-gaap:GainLossOnInvestmentsMember1us-gaap:ForeignExchangeForwardMemberus-gaap:FairValueHedgingMember2020-01-012020-12-310000004977us-gaap:GainLossOnInvestmentsMember1us-gaap:ForeignExchangeForwardMemberus-gaap:FairValueHedgingMember2019-01-012019-12-310000004977us-gaap:GainLossOnInvestmentsMember1us-gaap:ForeignExchangeOptionMemberus-gaap:FairValueHedgingMember2021-01-012021-12-310000004977us-gaap:GainLossOnInvestmentsMember1us-gaap:ForeignExchangeOptionMemberus-gaap:FairValueHedgingMember2020-01-012020-12-310000004977us-gaap:GainLossOnInvestmentsMember1us-gaap:ForeignExchangeOptionMemberus-gaap:FairValueHedgingMember2019-01-012019-12-310000004977us-gaap:InvestmentIncomeMemberus-gaap:FairValueHedgingMemberus-gaap:InterestRateSwaptionMember2021-01-012021-12-310000004977us-gaap:GainLossOnInvestmentsMember1us-gaap:FairValueHedgingMemberus-gaap:InterestRateSwaptionMember2021-01-012021-12-310000004977us-gaap:FairValueHedgingMemberus-gaap:InterestRateSwaptionMember2021-01-012021-12-310000004977us-gaap:InvestmentIncomeMemberus-gaap:FairValueHedgingMemberus-gaap:InterestRateSwaptionMember2020-01-012020-12-310000004977us-gaap:GainLossOnInvestmentsMember1us-gaap:FairValueHedgingMemberus-gaap:InterestRateSwaptionMember2020-01-012020-12-310000004977us-gaap:FairValueHedgingMemberus-gaap:InterestRateSwaptionMember2020-01-012020-12-310000004977us-gaap:InvestmentIncomeMemberus-gaap:FairValueHedgingMemberus-gaap:InterestRateSwaptionMember2019-01-012019-12-310000004977us-gaap:GainLossOnInvestmentsMember1us-gaap:FairValueHedgingMemberus-gaap:InterestRateSwaptionMember2019-01-012019-12-310000004977us-gaap:FairValueHedgingMemberus-gaap:InterestRateSwaptionMember2019-01-012019-12-310000004977us-gaap:InvestmentIncomeMemberus-gaap:FairValueHedgingMember2021-01-012021-12-310000004977us-gaap:GainLossOnInvestmentsMember1us-gaap:FairValueHedgingMember2021-01-012021-12-310000004977us-gaap:FairValueHedgingMember2021-01-012021-12-310000004977us-gaap:InvestmentIncomeMemberus-gaap:FairValueHedgingMember2020-01-012020-12-310000004977us-gaap:GainLossOnInvestmentsMember1us-gaap:FairValueHedgingMember2020-01-012020-12-310000004977us-gaap:FairValueHedgingMember2020-01-012020-12-310000004977us-gaap:InvestmentIncomeMemberus-gaap:FairValueHedgingMember2019-01-012019-12-310000004977us-gaap:GainLossOnInvestmentsMember1us-gaap:FairValueHedgingMember2019-01-012019-12-310000004977us-gaap:FairValueHedgingMember2019-01-012019-12-310000004977us-gaap:GainLossOnInvestmentsMember1afl:NonDerivativeHedgingInstrumentsMemberus-gaap:NetInvestmentHedgingMember2021-01-012021-12-310000004977afl:NonDerivativeHedgingInstrumentsMemberus-gaap:NetInvestmentHedgingMember2021-01-012021-12-310000004977us-gaap:GainLossOnInvestmentsMember1afl:NonDerivativeHedgingInstrumentsMemberus-gaap:NetInvestmentHedgingMember2020-01-012020-12-310000004977afl:NonDerivativeHedgingInstrumentsMemberus-gaap:NetInvestmentHedgingMember2020-01-012020-12-310000004977us-gaap:GainLossOnInvestmentsMember1afl:NonDerivativeHedgingInstrumentsMemberus-gaap:NetInvestmentHedgingMember2019-01-012019-12-310000004977afl:NonDerivativeHedgingInstrumentsMemberus-gaap:NetInvestmentHedgingMember2019-01-012019-12-310000004977us-gaap:GainLossOnInvestmentsMember1us-gaap:ForeignExchangeForwardMemberus-gaap:NetInvestmentHedgingMember2021-01-012021-12-310000004977us-gaap:ForeignExchangeForwardMemberus-gaap:NetInvestmentHedgingMember2021-01-012021-12-310000004977us-gaap:GainLossOnInvestmentsMember1us-gaap:ForeignExchangeForwardMemberus-gaap:NetInvestmentHedgingMember2020-01-012020-12-310000004977us-gaap:ForeignExchangeForwardMemberus-gaap:NetInvestmentHedgingMember2020-01-012020-12-310000004977us-gaap:GainLossOnInvestmentsMember1us-gaap:ForeignExchangeForwardMemberus-gaap:NetInvestmentHedgingMember2019-01-012019-12-310000004977us-gaap:ForeignExchangeForwardMemberus-gaap:NetInvestmentHedgingMember2019-01-012019-12-310000004977us-gaap:GainLossOnInvestmentsMember1us-gaap:ForeignExchangeOptionMemberus-gaap:NetInvestmentHedgingMember2021-01-012021-12-310000004977us-gaap:ForeignExchangeOptionMemberus-gaap:NetInvestmentHedgingMember2021-01-012021-12-310000004977us-gaap:GainLossOnInvestmentsMember1us-gaap:ForeignExchangeOptionMemberus-gaap:NetInvestmentHedgingMember2020-01-012020-12-310000004977us-gaap:ForeignExchangeOptionMemberus-gaap:NetInvestmentHedgingMember2020-01-012020-12-310000004977us-gaap:GainLossOnInvestmentsMember1us-gaap:ForeignExchangeOptionMemberus-gaap:NetInvestmentHedgingMember2019-01-012019-12-310000004977us-gaap:ForeignExchangeOptionMemberus-gaap:NetInvestmentHedgingMember2019-01-012019-12-310000004977us-gaap:GainLossOnInvestmentsMember1us-gaap:NetInvestmentHedgingMember2021-01-012021-12-310000004977us-gaap:NetInvestmentHedgingMember2021-01-012021-12-310000004977us-gaap:GainLossOnInvestmentsMember1us-gaap:NetInvestmentHedgingMember2020-01-012020-12-310000004977us-gaap:NetInvestmentHedgingMember2020-01-012020-12-310000004977us-gaap:GainLossOnInvestmentsMember1us-gaap:NetInvestmentHedgingMember2019-01-012019-12-310000004977us-gaap:NetInvestmentHedgingMember2019-01-012019-12-310000004977us-gaap:NondesignatedMemberus-gaap:GainLossOnInvestmentsMember1srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberus-gaap:CurrencySwapMember2021-01-012021-12-310000004977us-gaap:NondesignatedMemberus-gaap:GainLossOnInvestmentsMember1srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberus-gaap:CurrencySwapMember2020-01-012020-12-310000004977us-gaap:NondesignatedMemberus-gaap:GainLossOnInvestmentsMember1srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberus-gaap:CurrencySwapMember2019-01-012019-12-310000004977us-gaap:NondesignatedMemberus-gaap:GainLossOnInvestmentsMember1us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberus-gaap:CurrencySwapMember2021-01-012021-12-310000004977us-gaap:NondesignatedMemberus-gaap:GainLossOnInvestmentsMember1us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberus-gaap:CurrencySwapMember2020-01-012020-12-310000004977us-gaap:NondesignatedMemberus-gaap:GainLossOnInvestmentsMember1us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberus-gaap:CurrencySwapMember2019-01-012019-12-310000004977us-gaap:NondesignatedMemberus-gaap:GainLossOnInvestmentsMember1us-gaap:ForeignExchangeForwardMember2021-01-012021-12-310000004977us-gaap:NondesignatedMemberus-gaap:GainLossOnInvestmentsMember1us-gaap:ForeignExchangeForwardMember2020-01-012020-12-310000004977us-gaap:NondesignatedMemberus-gaap:GainLossOnInvestmentsMember1us-gaap:ForeignExchangeForwardMember2019-01-012019-12-310000004977us-gaap:NondesignatedMemberus-gaap:GainLossOnInvestmentsMember1us-gaap:ForeignExchangeOptionMember2021-01-012021-12-310000004977us-gaap:NondesignatedMemberus-gaap:GainLossOnInvestmentsMember1us-gaap:ForeignExchangeOptionMember2020-01-012020-12-310000004977us-gaap:NondesignatedMemberus-gaap:GainLossOnInvestmentsMember1us-gaap:ForeignExchangeOptionMember2019-01-012019-12-310000004977us-gaap:NondesignatedMemberus-gaap:GainLossOnInvestmentsMember1us-gaap:InterestRateSwapMember2021-01-012021-12-310000004977us-gaap:NondesignatedMemberus-gaap:GainLossOnInvestmentsMember1us-gaap:InterestRateSwapMember2020-01-012020-12-310000004977us-gaap:NondesignatedMemberus-gaap:GainLossOnInvestmentsMember1us-gaap:InterestRateSwapMember2019-01-012019-12-310000004977us-gaap:NondesignatedMemberus-gaap:GainLossOnInvestmentsMember1us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberus-gaap:ForwardContractsMember2021-01-012021-12-310000004977us-gaap:NondesignatedMemberus-gaap:GainLossOnInvestmentsMember1us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberus-gaap:ForwardContractsMember2020-01-012020-12-310000004977us-gaap:NondesignatedMemberus-gaap:GainLossOnInvestmentsMember1us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberus-gaap:ForwardContractsMember2019-01-012019-12-310000004977us-gaap:NondesignatedMemberus-gaap:GainLossOnInvestmentsMember12021-01-012021-12-310000004977us-gaap:NondesignatedMemberus-gaap:GainLossOnInvestmentsMember12020-01-012020-12-310000004977us-gaap:NondesignatedMemberus-gaap:GainLossOnInvestmentsMember12019-01-012019-12-310000004977us-gaap:InvestmentIncomeMember2021-01-012021-12-310000004977us-gaap:GainLossOnInvestmentsMember12021-01-012021-12-310000004977us-gaap:InvestmentIncomeMember2020-01-012020-12-310000004977us-gaap:GainLossOnInvestmentsMember12020-01-012020-12-310000004977us-gaap:InvestmentIncomeMember2019-01-012019-12-310000004977us-gaap:GainLossOnInvestmentsMember12019-01-012019-12-310000004977us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2021-01-012021-12-310000004977us-gaap:OverTheCounterMember2021-12-310000004977afl:SecuritieslendingandsimilararrangementsMember2021-12-310000004977us-gaap:OverTheCounterMember2020-12-310000004977afl:SecuritieslendingandsimilararrangementsMember2020-12-310000004977us-gaap:ExchangeClearedMember2021-12-310000004977us-gaap:FairValueInputsLevel1Memberafl:GovernmentAndAgenciesDebtSecuritiesMember2021-12-310000004977us-gaap:FairValueInputsLevel2Memberafl:GovernmentAndAgenciesDebtSecuritiesMember2021-12-310000004977us-gaap:FairValueInputsLevel3Memberafl:GovernmentAndAgenciesDebtSecuritiesMember2021-12-310000004977afl:GovernmentAndAgenciesDebtSecuritiesMember2021-12-310000004977us-gaap:FairValueInputsLevel1Memberus-gaap:MunicipalBondsMember2021-12-310000004977us-gaap:FairValueInputsLevel2Memberus-gaap:MunicipalBondsMember2021-12-310000004977us-gaap:FairValueInputsLevel3Memberus-gaap:MunicipalBondsMember2021-12-310000004977us-gaap:MunicipalBondsMember2021-12-310000004977us-gaap:FairValueInputsLevel1Memberus-gaap:AssetBackedSecuritiesMember2021-12-310000004977us-gaap:FairValueInputsLevel2Memberus-gaap:AssetBackedSecuritiesMember2021-12-310000004977us-gaap:FairValueInputsLevel3Memberus-gaap:AssetBackedSecuritiesMember2021-12-310000004977us-gaap:AssetBackedSecuritiesMember2021-12-310000004977us-gaap:FairValueInputsLevel1Memberus-gaap:PublicUtilityBondsMember2021-12-310000004977us-gaap:FairValueInputsLevel2Memberus-gaap:PublicUtilityBondsMember2021-12-310000004977us-gaap:FairValueInputsLevel3Memberus-gaap:PublicUtilityBondsMember2021-12-310000004977us-gaap:PublicUtilityBondsMember2021-12-310000004977us-gaap:SovereignDebtMemberus-gaap:FairValueInputsLevel1Member2021-12-310000004977us-gaap:FairValueInputsLevel2Memberus-gaap:SovereignDebtMember2021-12-310000004977us-gaap:SovereignDebtMemberus-gaap:FairValueInputsLevel3Member2021-12-310000004977us-gaap:SovereignDebtMember2021-12-310000004977us-gaap:FairValueInputsLevel1Memberafl:BanksAndFinancialInstitutionsMember2021-12-310000004977us-gaap:FairValueInputsLevel2Memberafl:BanksAndFinancialInstitutionsMember2021-12-310000004977us-gaap:FairValueInputsLevel3Memberafl:BanksAndFinancialInstitutionsMember2021-12-310000004977afl:BanksAndFinancialInstitutionsMember2021-12-310000004977us-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel1Member2021-12-310000004977us-gaap:FairValueInputsLevel2Memberus-gaap:CorporateDebtSecuritiesMember2021-12-310000004977us-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel3Member2021-12-310000004977us-gaap:CorporateDebtSecuritiesMember2021-12-310000004977us-gaap:FairValueInputsLevel1Member2021-12-310000004977us-gaap:FairValueInputsLevel2Member2021-12-310000004977us-gaap:FairValueInputsLevel3Member2021-12-310000004977us-gaap:FairValueInputsLevel1Memberus-gaap:CurrencySwapMember2021-12-310000004977us-gaap:FairValueInputsLevel2Memberus-gaap:CurrencySwapMember2021-12-310000004977us-gaap:FairValueInputsLevel3Memberus-gaap:CurrencySwapMember2021-12-310000004977us-gaap:CurrencySwapMember2021-12-310000004977us-gaap:ForeignExchangeForwardMemberus-gaap:FairValueInputsLevel1Member2021-12-310000004977us-gaap:FairValueInputsLevel2Memberus-gaap:ForeignExchangeForwardMember2021-12-310000004977us-gaap:ForeignExchangeForwardMemberus-gaap:FairValueInputsLevel3Member2021-12-310000004977us-gaap:ForeignExchangeForwardMember2021-12-310000004977us-gaap:ForeignExchangeOptionMemberus-gaap:FairValueInputsLevel1Member2021-12-310000004977us-gaap:FairValueInputsLevel2Memberus-gaap:ForeignExchangeOptionMember2021-12-310000004977us-gaap:ForeignExchangeOptionMemberus-gaap:FairValueInputsLevel3Member2021-12-310000004977us-gaap:ForeignExchangeOptionMember2021-12-310000004977us-gaap:InterestRateSwapMemberus-gaap:FairValueInputsLevel1Member2021-12-310000004977us-gaap:FairValueInputsLevel2Memberus-gaap:InterestRateSwapMember2021-12-310000004977us-gaap:InterestRateSwapMemberus-gaap:FairValueInputsLevel3Member2021-12-310000004977us-gaap:InterestRateSwapMember2021-12-310000004977us-gaap:FairValueInputsLevel1Memberafl:GovernmentAndAgenciesDebtSecuritiesMember2020-12-310000004977us-gaap:FairValueInputsLevel2Memberafl:GovernmentAndAgenciesDebtSecuritiesMember2020-12-310000004977us-gaap:FairValueInputsLevel3Memberafl:GovernmentAndAgenciesDebtSecuritiesMember2020-12-310000004977afl:GovernmentAndAgenciesDebtSecuritiesMember2020-12-310000004977us-gaap:FairValueInputsLevel1Memberus-gaap:MunicipalBondsMember2020-12-310000004977us-gaap:FairValueInputsLevel2Memberus-gaap:MunicipalBondsMember2020-12-310000004977us-gaap:FairValueInputsLevel3Memberus-gaap:MunicipalBondsMember2020-12-310000004977us-gaap:MunicipalBondsMember2020-12-310000004977us-gaap:FairValueInputsLevel1Memberus-gaap:AssetBackedSecuritiesMember2020-12-310000004977us-gaap:FairValueInputsLevel2Memberus-gaap:AssetBackedSecuritiesMember2020-12-310000004977us-gaap:FairValueInputsLevel3Memberus-gaap:AssetBackedSecuritiesMember2020-12-310000004977us-gaap:AssetBackedSecuritiesMember2020-12-310000004977us-gaap:FairValueInputsLevel1Memberus-gaap:PublicUtilityBondsMember2020-12-310000004977us-gaap:FairValueInputsLevel2Memberus-gaap:PublicUtilityBondsMember2020-12-310000004977us-gaap:FairValueInputsLevel3Memberus-gaap:PublicUtilityBondsMember2020-12-310000004977us-gaap:PublicUtilityBondsMember2020-12-310000004977us-gaap:SovereignDebtMemberus-gaap:FairValueInputsLevel1Member2020-12-310000004977us-gaap:FairValueInputsLevel2Memberus-gaap:SovereignDebtMember2020-12-310000004977us-gaap:SovereignDebtMemberus-gaap:FairValueInputsLevel3Member2020-12-310000004977us-gaap:SovereignDebtMember2020-12-310000004977us-gaap:FairValueInputsLevel1Memberafl:BanksAndFinancialInstitutionsMember2020-12-310000004977us-gaap:FairValueInputsLevel2Memberafl:BanksAndFinancialInstitutionsMember2020-12-310000004977us-gaap:FairValueInputsLevel3Memberafl:BanksAndFinancialInstitutionsMember2020-12-310000004977afl:BanksAndFinancialInstitutionsMember2020-12-310000004977us-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel1Member2020-12-310000004977us-gaap:FairValueInputsLevel2Memberus-gaap:CorporateDebtSecuritiesMember2020-12-310000004977us-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel3Member2020-12-310000004977us-gaap:CorporateDebtSecuritiesMember2020-12-310000004977us-gaap:FairValueInputsLevel1Member2020-12-310000004977us-gaap:FairValueInputsLevel2Member2020-12-310000004977us-gaap:FairValueInputsLevel3Member2020-12-310000004977us-gaap:FairValueInputsLevel1Memberus-gaap:CurrencySwapMember2020-12-310000004977us-gaap:FairValueInputsLevel2Memberus-gaap:CurrencySwapMember2020-12-310000004977us-gaap:FairValueInputsLevel3Memberus-gaap:CurrencySwapMember2020-12-310000004977us-gaap:CurrencySwapMember2020-12-310000004977us-gaap:ForeignExchangeForwardMemberus-gaap:FairValueInputsLevel1Member2020-12-310000004977us-gaap:FairValueInputsLevel2Memberus-gaap:ForeignExchangeForwardMember2020-12-310000004977us-gaap:ForeignExchangeForwardMemberus-gaap:FairValueInputsLevel3Member2020-12-310000004977us-gaap:ForeignExchangeForwardMember2020-12-310000004977us-gaap:ForeignExchangeOptionMemberus-gaap:FairValueInputsLevel1Member2020-12-310000004977us-gaap:FairValueInputsLevel2Memberus-gaap:ForeignExchangeOptionMember2020-12-310000004977us-gaap:ForeignExchangeOptionMemberus-gaap:FairValueInputsLevel3Member2020-12-310000004977us-gaap:ForeignExchangeOptionMember2020-12-310000004977us-gaap:EquityMethodInvestmentsMember2021-12-310000004977us-gaap:EquityMethodInvestmentsMember2020-12-310000004977us-gaap:FairValueInputsLevel1Memberafl:ThirdPartyPricingVendorValuationTechniqueMemberafl:GovernmentAndAgenciesDebtSecuritiesMember2021-12-310000004977us-gaap:FairValueInputsLevel2Memberafl:ThirdPartyPricingVendorValuationTechniqueMemberafl:GovernmentAndAgenciesDebtSecuritiesMember2021-12-310000004977us-gaap:FairValueInputsLevel3Memberafl:ThirdPartyPricingVendorValuationTechniqueMemberafl:GovernmentAndAgenciesDebtSecuritiesMember2021-12-310000004977afl:ThirdPartyPricingVendorValuationTechniqueMemberafl:GovernmentAndAgenciesDebtSecuritiesMember2021-12-310000004977afl:InternalValuationTechniqueMemberus-gaap:FairValueInputsLevel1Memberafl:GovernmentAndAgenciesDebtSecuritiesMember2021-12-310000004977us-gaap:FairValueInputsLevel2Memberafl:InternalValuationTechniqueMemberafl:GovernmentAndAgenciesDebtSecuritiesMember2021-12-310000004977afl:InternalValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberafl:GovernmentAndAgenciesDebtSecuritiesMember2021-12-310000004977afl:InternalValuationTechniqueMemberafl:GovernmentAndAgenciesDebtSecuritiesMember2021-12-310000004977us-gaap:FairValueInputsLevel1Memberafl:ThirdPartyPricingVendorValuationTechniqueMemberus-gaap:MunicipalBondsMember2021-12-310000004977us-gaap:FairValueInputsLevel2Memberafl:ThirdPartyPricingVendorValuationTechniqueMemberus-gaap:MunicipalBondsMember2021-12-310000004977us-gaap:FairValueInputsLevel3Memberafl:ThirdPartyPricingVendorValuationTechniqueMemberus-gaap:MunicipalBondsMember2021-12-310000004977afl:ThirdPartyPricingVendorValuationTechniqueMemberus-gaap:MunicipalBondsMember2021-12-310000004977afl:InternalValuationTechniqueMemberus-gaap:FairValueInputsLevel1Memberus-gaap:MunicipalBondsMember2021-12-310000004977us-gaap:FairValueInputsLevel2Memberafl:InternalValuationTechniqueMemberus-gaap:MunicipalBondsMember2021-12-310000004977afl:InternalValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MunicipalBondsMember2021-12-310000004977afl:InternalValuationTechniqueMemberus-gaap:MunicipalBondsMember2021-12-310000004977us-gaap:FairValueInputsLevel1Memberafl:ThirdPartyPricingVendorValuationTechniqueMemberus-gaap:AssetBackedSecuritiesMember2021-12-310000004977us-gaap:FairValueInputsLevel2Memberafl:ThirdPartyPricingVendorValuationTechniqueMemberus-gaap:AssetBackedSecuritiesMember2021-12-310000004977us-gaap:FairValueInputsLevel3Memberafl:ThirdPartyPricingVendorValuationTechniqueMemberus-gaap:AssetBackedSecuritiesMember2021-12-310000004977afl:ThirdPartyPricingVendorValuationTechniqueMemberus-gaap:AssetBackedSecuritiesMember2021-12-310000004977us-gaap:ValuationTechniqueConsensusPricingModelMemberus-gaap:FairValueInputsLevel1Memberus-gaap:AssetBackedSecuritiesMember2021-12-310000004977us-gaap:FairValueInputsLevel2Memberus-gaap:ValuationTechniqueConsensusPricingModelMemberus-gaap:AssetBackedSecuritiesMember2021-12-310000004977us-gaap:ValuationTechniqueConsensusPricingModelMemberus-gaap:FairValueInputsLevel3Memberus-gaap:AssetBackedSecuritiesMember2021-12-310000004977us-gaap:ValuationTechniqueConsensusPricingModelMemberus-gaap:AssetBackedSecuritiesMember2021-12-310000004977us-gaap:FairValueInputsLevel1Memberafl:ThirdPartyPricingVendorValuationTechniqueMemberus-gaap:PublicUtilityBondsMember2021-12-310000004977us-gaap:FairValueInputsLevel2Memberafl:ThirdPartyPricingVendorValuationTechniqueMemberus-gaap:PublicUtilityBondsMember2021-12-310000004977us-gaap:FairValueInputsLevel3Memberafl:ThirdPartyPricingVendorValuationTechniqueMemberus-gaap:PublicUtilityBondsMember2021-12-310000004977afl:ThirdPartyPricingVendorValuationTechniqueMemberus-gaap:PublicUtilityBondsMember2021-12-310000004977afl:InternalValuationTechniqueMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PublicUtilityBondsMember2021-12-310000004977us-gaap:FairValueInputsLevel2Memberafl:InternalValuationTechniqueMemberus-gaap:PublicUtilityBondsMember2021-12-310000004977afl:InternalValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PublicUtilityBondsMember2021-12-310000004977afl:InternalValuationTechniqueMemberus-gaap:PublicUtilityBondsMember2021-12-310000004977us-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PublicUtilityBondsMember2021-12-310000004977us-gaap:FairValueInputsLevel2Memberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:PublicUtilityBondsMember2021-12-310000004977us-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PublicUtilityBondsMember2021-12-310000004977us-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:PublicUtilityBondsMember2021-12-310000004977us-gaap:SovereignDebtMemberus-gaap:FairValueInputsLevel1Memberafl:ThirdPartyPricingVendorValuationTechniqueMember2021-12-310000004977us-gaap:FairValueInputsLevel2Memberus-gaap:SovereignDebtMemberafl:ThirdPartyPricingVendorValuationTechniqueMember2021-12-310000004977us-gaap:SovereignDebtMemberus-gaap:FairValueInputsLevel3Memberafl:ThirdPartyPricingVendorValuationTechniqueMember2021-12-310000004977us-gaap:SovereignDebtMemberafl:ThirdPartyPricingVendorValuationTechniqueMember2021-12-310000004977afl:InternalValuationTechniqueMemberus-gaap:SovereignDebtMemberus-gaap:FairValueInputsLevel1Member2021-12-310000004977us-gaap:FairValueInputsLevel2Memberafl:InternalValuationTechniqueMemberus-gaap:SovereignDebtMember2021-12-310000004977afl:InternalValuationTechniqueMemberus-gaap:SovereignDebtMemberus-gaap:FairValueInputsLevel3Member2021-12-310000004977afl:InternalValuationTechniqueMemberus-gaap:SovereignDebtMember2021-12-310000004977us-gaap:SovereignDebtMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:FairValueInputsLevel1Member2021-12-310000004977us-gaap:FairValueInputsLevel2Memberus-gaap:SovereignDebtMemberus-gaap:ValuationTechniqueDiscountedCashFlowMember2021-12-310000004977us-gaap:SovereignDebtMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:FairValueInputsLevel3Member2021-12-310000004977us-gaap:SovereignDebtMemberus-gaap:ValuationTechniqueDiscountedCashFlowMember2021-12-310000004977us-gaap:FairValueInputsLevel1Memberafl:ThirdPartyPricingVendorValuationTechniqueMemberafl:BanksAndFinancialInstitutionsMember2021-12-310000004977us-gaap:FairValueInputsLevel2Memberafl:ThirdPartyPricingVendorValuationTechniqueMemberafl:BanksAndFinancialInstitutionsMember2021-12-310000004977us-gaap:FairValueInputsLevel3Memberafl:ThirdPartyPricingVendorValuationTechniqueMemberafl:BanksAndFinancialInstitutionsMember2021-12-310000004977afl:ThirdPartyPricingVendorValuationTechniqueMemberafl:BanksAndFinancialInstitutionsMember2021-12-310000004977afl:InternalValuationTechniqueMemberus-gaap:FairValueInputsLevel1Memberafl:BanksAndFinancialInstitutionsMember2021-12-310000004977us-gaap:FairValueInputsLevel2Memberafl:InternalValuationTechniqueMemberafl:BanksAndFinancialInstitutionsMember2021-12-310000004977afl:InternalValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberafl:BanksAndFinancialInstitutionsMember2021-12-310000004977afl:InternalValuationTechniqueMemberafl:BanksAndFinancialInstitutionsMember2021-12-310000004977us-gaap:ValuationTechniqueConsensusPricingModelMemberus-gaap:FairValueInputsLevel1Memberafl:BanksAndFinancialInstitutionsMember2021-12-310000004977us-gaap:FairValueInputsLevel2Memberus-gaap:ValuationTechniqueConsensusPricingModelMemberafl:BanksAndFinancialInstitutionsMember2021-12-310000004977us-gaap:ValuationTechniqueConsensusPricingModelMemberus-gaap:FairValueInputsLevel3Memberafl:BanksAndFinancialInstitutionsMember2021-12-310000004977us-gaap:ValuationTechniqueConsensusPricingModelMemberafl:BanksAndFinancialInstitutionsMember2021-12-310000004977us-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel1Memberafl:ThirdPartyPricingVendorValuationTechniqueMember2021-12-310000004977us-gaap:FairValueInputsLevel2Memberus-gaap:CorporateDebtSecuritiesMemberafl:ThirdPartyPricingVendorValuationTechniqueMember2021-12-310000004977us-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel3Memberafl:ThirdPartyPricingVendorValuationTechniqueMember2021-12-310000004977us-gaap:CorporateDebtSecuritiesMemberafl:ThirdPartyPricingVendorValuationTechniqueMember2021-12-310000004977afl:InternalValuationTechniqueMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel1Member2021-12-310000004977us-gaap:FairValueInputsLevel2Memberafl:InternalValuationTechniqueMemberus-gaap:CorporateDebtSecuritiesMember2021-12-310000004977afl:InternalValuationTechniqueMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel3Member2021-12-310000004977afl:InternalValuationTechniqueMemberus-gaap:CorporateDebtSecuritiesMember2021-12-310000004977us-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel1Member2021-12-310000004977us-gaap:FairValueInputsLevel2Memberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:CorporateDebtSecuritiesMember2021-12-310000004977us-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel3Member2021-12-310000004977us-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:CorporateDebtSecuritiesMember2021-12-310000004977us-gaap:FairValueInputsLevel1Memberafl:ThirdPartyPricingVendorValuationTechniqueMember2021-12-310000004977us-gaap:FairValueInputsLevel2Memberafl:ThirdPartyPricingVendorValuationTechniqueMember2021-12-310000004977us-gaap:FairValueInputsLevel3Memberafl:ThirdPartyPricingVendorValuationTechniqueMember2021-12-310000004977afl:ThirdPartyPricingVendorValuationTechniqueMember2021-12-310000004977us-gaap:FairValueInputsLevel1Memberafl:NetAssetValueValuationTechniqueMember2021-12-310000004977us-gaap:FairValueInputsLevel2Memberafl:NetAssetValueValuationTechniqueMember2021-12-310000004977us-gaap:FairValueInputsLevel3Memberafl:NetAssetValueValuationTechniqueMember2021-12-310000004977afl:NetAssetValueValuationTechniqueMember2021-12-310000004977us-gaap:SovereignDebtMemberus-gaap:ValuationTechniqueConsensusPricingModelMemberus-gaap:FairValueInputsLevel1Member2021-12-310000004977us-gaap:FairValueInputsLevel2Memberus-gaap:SovereignDebtMemberus-gaap:ValuationTechniqueConsensusPricingModelMember2021-12-310000004977us-gaap:SovereignDebtMemberus-gaap:ValuationTechniqueConsensusPricingModelMemberus-gaap:FairValueInputsLevel3Member2021-12-310000004977us-gaap:SovereignDebtMemberus-gaap:ValuationTechniqueConsensusPricingModelMember2021-12-310000004977us-gaap:FairValueInputsLevel1Memberafl:ThirdPartyPricingVendorValuationTechniqueMemberafl:GovernmentAndAgenciesDebtSecuritiesMember2020-12-310000004977us-gaap:FairValueInputsLevel2Memberafl:ThirdPartyPricingVendorValuationTechniqueMemberafl:GovernmentAndAgenciesDebtSecuritiesMember2020-12-310000004977us-gaap:FairValueInputsLevel3Memberafl:ThirdPartyPricingVendorValuationTechniqueMemberafl:GovernmentAndAgenciesDebtSecuritiesMember2020-12-310000004977afl:ThirdPartyPricingVendorValuationTechniqueMemberafl:GovernmentAndAgenciesDebtSecuritiesMember2020-12-310000004977us-gaap:FairValueInputsLevel1Memberafl:ThirdPartyPricingVendorValuationTechniqueMemberus-gaap:MunicipalBondsMember2020-12-310000004977us-gaap:FairValueInputsLevel2Memberafl:ThirdPartyPricingVendorValuationTechniqueMemberus-gaap:MunicipalBondsMember2020-12-310000004977us-gaap:FairValueInputsLevel3Memberafl:ThirdPartyPricingVendorValuationTechniqueMemberus-gaap:MunicipalBondsMember2020-12-310000004977afl:ThirdPartyPricingVendorValuationTechniqueMemberus-gaap:MunicipalBondsMember2020-12-310000004977us-gaap:FairValueInputsLevel1Memberafl:ThirdPartyPricingVendorValuationTechniqueMemberus-gaap:AssetBackedSecuritiesMember2020-12-310000004977us-gaap:FairValueInputsLevel2Memberafl:ThirdPartyPricingVendorValuationTechniqueMemberus-gaap:AssetBackedSecuritiesMember2020-12-310000004977us-gaap:FairValueInputsLevel3Memberafl:ThirdPartyPricingVendorValuationTechniqueMemberus-gaap:AssetBackedSecuritiesMember2020-12-310000004977afl:ThirdPartyPricingVendorValuationTechniqueMemberus-gaap:AssetBackedSecuritiesMember2020-12-310000004977us-gaap:ValuationTechniqueConsensusPricingModelMemberus-gaap:FairValueInputsLevel1Memberus-gaap:AssetBackedSecuritiesMember2020-12-310000004977us-gaap:FairValueInputsLevel2Memberus-gaap:ValuationTechniqueConsensusPricingModelMemberus-gaap:AssetBackedSecuritiesMember2020-12-310000004977us-gaap:ValuationTechniqueConsensusPricingModelMemberus-gaap:FairValueInputsLevel3Memberus-gaap:AssetBackedSecuritiesMember2020-12-310000004977us-gaap:ValuationTechniqueConsensusPricingModelMemberus-gaap:AssetBackedSecuritiesMember2020-12-310000004977us-gaap:FairValueInputsLevel1Memberafl:ThirdPartyPricingVendorValuationTechniqueMemberus-gaap:PublicUtilityBondsMember2020-12-310000004977us-gaap:FairValueInputsLevel2Memberafl:ThirdPartyPricingVendorValuationTechniqueMemberus-gaap:PublicUtilityBondsMember2020-12-310000004977us-gaap:FairValueInputsLevel3Memberafl:ThirdPartyPricingVendorValuationTechniqueMemberus-gaap:PublicUtilityBondsMember2020-12-310000004977afl:ThirdPartyPricingVendorValuationTechniqueMemberus-gaap:PublicUtilityBondsMember2020-12-310000004977us-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PublicUtilityBondsMember2020-12-310000004977us-gaap:FairValueInputsLevel2Memberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:PublicUtilityBondsMember2020-12-310000004977us-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PublicUtilityBondsMember2020-12-310000004977us-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:PublicUtilityBondsMember2020-12-310000004977us-gaap:SovereignDebtMemberus-gaap:FairValueInputsLevel1Memberafl:ThirdPartyPricingVendorValuationTechniqueMember2020-12-310000004977us-gaap:FairValueInputsLevel2Memberus-gaap:SovereignDebtMemberafl:ThirdPartyPricingVendorValuationTechniqueMember2020-12-310000004977us-gaap:SovereignDebtMemberus-gaap:FairValueInputsLevel3Memberafl:ThirdPartyPricingVendorValuationTechniqueMember2020-12-310000004977us-gaap:SovereignDebtMemberafl:ThirdPartyPricingVendorValuationTechniqueMember2020-12-310000004977us-gaap:SovereignDebtMemberus-gaap:ValuationTechniqueConsensusPricingModelMemberus-gaap:FairValueInputsLevel1Member2020-12-310000004977us-gaap:FairValueInputsLevel2Memberus-gaap:SovereignDebtMemberus-gaap:ValuationTechniqueConsensusPricingModelMember2020-12-310000004977us-gaap:SovereignDebtMemberus-gaap:ValuationTechniqueConsensusPricingModelMemberus-gaap:FairValueInputsLevel3Member2020-12-310000004977us-gaap:SovereignDebtMemberus-gaap:ValuationTechniqueConsensusPricingModelMember2020-12-310000004977us-gaap:FairValueInputsLevel1Memberafl:ThirdPartyPricingVendorValuationTechniqueMemberafl:BanksAndFinancialInstitutionsMember2020-12-310000004977us-gaap:FairValueInputsLevel2Memberafl:ThirdPartyPricingVendorValuationTechniqueMemberafl:BanksAndFinancialInstitutionsMember2020-12-310000004977us-gaap:FairValueInputsLevel3Memberafl:ThirdPartyPricingVendorValuationTechniqueMemberafl:BanksAndFinancialInstitutionsMember2020-12-310000004977afl:ThirdPartyPricingVendorValuationTechniqueMemberafl:BanksAndFinancialInstitutionsMember2020-12-310000004977us-gaap:ValuationTechniqueConsensusPricingModelMemberus-gaap:FairValueInputsLevel1Memberafl:BanksAndFinancialInstitutionsMember2020-12-310000004977us-gaap:FairValueInputsLevel2Memberus-gaap:ValuationTechniqueConsensusPricingModelMemberafl:BanksAndFinancialInstitutionsMember2020-12-310000004977us-gaap:ValuationTechniqueConsensusPricingModelMemberus-gaap:FairValueInputsLevel3Memberafl:BanksAndFinancialInstitutionsMember2020-12-310000004977us-gaap:ValuationTechniqueConsensusPricingModelMemberafl:BanksAndFinancialInstitutionsMember2020-12-310000004977us-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel1Memberafl:ThirdPartyPricingVendorValuationTechniqueMember2020-12-310000004977us-gaap:FairValueInputsLevel2Memberus-gaap:CorporateDebtSecuritiesMemberafl:ThirdPartyPricingVendorValuationTechniqueMember2020-12-310000004977us-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel3Memberafl:ThirdPartyPricingVendorValuationTechniqueMember2020-12-310000004977us-gaap:CorporateDebtSecuritiesMemberafl:ThirdPartyPricingVendorValuationTechniqueMember2020-12-310000004977us-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel1Member2020-12-310000004977us-gaap:FairValueInputsLevel2Memberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:CorporateDebtSecuritiesMember2020-12-310000004977us-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel3Member2020-12-310000004977us-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:CorporateDebtSecuritiesMember2020-12-310000004977us-gaap:FairValueInputsLevel1Memberafl:ThirdPartyPricingVendorValuationTechniqueMember2020-12-310000004977us-gaap:FairValueInputsLevel2Memberafl:ThirdPartyPricingVendorValuationTechniqueMember2020-12-310000004977us-gaap:FairValueInputsLevel3Memberafl:ThirdPartyPricingVendorValuationTechniqueMember2020-12-310000004977afl:ThirdPartyPricingVendorValuationTechniqueMember2020-12-310000004977us-gaap:FairValueInputsLevel1Memberafl:NetAssetValueValuationTechniqueMember2020-12-310000004977us-gaap:FairValueInputsLevel2Memberafl:NetAssetValueValuationTechniqueMember2020-12-310000004977us-gaap:FairValueInputsLevel3Memberafl:NetAssetValueValuationTechniqueMember2020-12-310000004977afl:NetAssetValueValuationTechniqueMember2020-12-310000004977us-gaap:FixedMaturitiesMemberus-gaap:AssetBackedSecuritiesMember2020-12-310000004977us-gaap:FixedMaturitiesMemberus-gaap:PublicUtilityBondsMember2020-12-310000004977us-gaap:SovereignDebtMemberus-gaap:FixedMaturitiesMember2020-12-310000004977us-gaap:FixedMaturitiesMemberafl:BanksAndFinancialInstitutionsMember2020-12-310000004977us-gaap:FixedMaturitiesMemberus-gaap:CorporateDebtSecuritiesMember2020-12-310000004977us-gaap:EquitySecuritiesMember2020-12-310000004977us-gaap:FixedMaturitiesMemberus-gaap:AssetBackedSecuritiesMember2021-01-012021-12-310000004977us-gaap:FixedMaturitiesMemberus-gaap:PublicUtilityBondsMember2021-01-012021-12-310000004977us-gaap:SovereignDebtMemberus-gaap:FixedMaturitiesMember2021-01-012021-12-310000004977us-gaap:FixedMaturitiesMemberafl:BanksAndFinancialInstitutionsMember2021-01-012021-12-310000004977us-gaap:FixedMaturitiesMemberus-gaap:CorporateDebtSecuritiesMember2021-01-012021-12-310000004977us-gaap:CurrencySwapMember2021-01-012021-12-310000004977us-gaap:FixedMaturitiesMemberus-gaap:AssetBackedSecuritiesMember2021-12-310000004977us-gaap:FixedMaturitiesMemberus-gaap:PublicUtilityBondsMember2021-12-310000004977us-gaap:SovereignDebtMemberus-gaap:FixedMaturitiesMember2021-12-310000004977us-gaap:FixedMaturitiesMemberafl:BanksAndFinancialInstitutionsMember2021-12-310000004977us-gaap:FixedMaturitiesMemberus-gaap:CorporateDebtSecuritiesMember2021-12-310000004977us-gaap:EquitySecuritiesMember2021-12-310000004977us-gaap:FixedMaturitiesMemberus-gaap:AssetBackedSecuritiesMember2019-12-310000004977us-gaap:FixedMaturitiesMemberus-gaap:PublicUtilityBondsMember2019-12-310000004977us-gaap:SovereignDebtMemberus-gaap:FixedMaturitiesMember2019-12-310000004977us-gaap:FixedMaturitiesMemberafl:BanksAndFinancialInstitutionsMember2019-12-310000004977us-gaap:FixedMaturitiesMemberus-gaap:CorporateDebtSecuritiesMember2019-12-310000004977us-gaap:EquitySecuritiesMember2019-12-310000004977us-gaap:CurrencySwapMember2019-12-310000004977us-gaap:FixedMaturitiesMemberus-gaap:AssetBackedSecuritiesMember2020-01-012020-12-310000004977us-gaap:FixedMaturitiesMemberus-gaap:PublicUtilityBondsMember2020-01-012020-12-310000004977us-gaap:SovereignDebtMemberus-gaap:FixedMaturitiesMember2020-01-012020-12-310000004977us-gaap:FixedMaturitiesMemberafl:BanksAndFinancialInstitutionsMember2020-01-012020-12-310000004977us-gaap:FixedMaturitiesMemberus-gaap:CorporateDebtSecuritiesMember2020-01-012020-12-310000004977us-gaap:CurrencySwapMember2020-01-012020-12-310000004977us-gaap:SovereignDebtMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:FairValueInputsLevel3Member2020-12-310000004977us-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:FairValueInputsLevel3Memberafl:FairValueUnobservableInputInterestRatesUsdInterestRatesJpyAndCdsSpreadsMemberus-gaap:CurrencySwapMember2020-12-310000004977srt:MinimumMemberus-gaap:FairValueInputsLevel3Memberafl:FairValueUnobservableInputInterestRatesUsdInterestRatesJpyAndCdsSpreadsMemberus-gaap:MeasurementInputDiscountRateMemberus-gaap:CurrencySwapMembercurrency:USD2020-12-310000004977srt:MaximumMemberus-gaap:FairValueInputsLevel3Memberafl:FairValueUnobservableInputInterestRatesUsdInterestRatesJpyAndCdsSpreadsMemberus-gaap:MeasurementInputDiscountRateMemberus-gaap:CurrencySwapMembercurrency:USD2020-12-310000004977srt:MinimumMemberus-gaap:FairValueInputsLevel3Memberafl:FairValueUnobservableInputInterestRatesUsdInterestRatesJpyAndCdsSpreadsMemberus-gaap:MeasurementInputDiscountRateMembercurrency:JPYus-gaap:CurrencySwapMember2020-12-310000004977srt:MaximumMemberus-gaap:FairValueInputsLevel3Memberafl:FairValueUnobservableInputInterestRatesUsdInterestRatesJpyAndCdsSpreadsMemberus-gaap:MeasurementInputDiscountRateMembercurrency:JPYus-gaap:CurrencySwapMember2020-12-310000004977us-gaap:MeasurementInputCreditSpreadMembersrt:MinimumMemberus-gaap:FairValueInputsLevel3Memberafl:FairValueUnobservableInputInterestRatesUsdInterestRatesJpyAndCdsSpreadsMemberus-gaap:CurrencySwapMember2020-12-310000004977us-gaap:MeasurementInputCreditSpreadMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Memberafl:FairValueUnobservableInputInterestRatesUsdInterestRatesJpyAndCdsSpreadsMemberus-gaap:CurrencySwapMember2020-12-310000004977afl:FairValueUnobservableInputInterestRatesUSDandinterestratesJPYMemberus-gaap:ValuationTechniqueDiscountedCashFlowMemberus-gaap:FairValueInputsLevel3Memberus-gaap:CurrencySwapMember2020-12-310000004977afl:FairValueUnobservableInputInterestRatesUSDandinterestratesJPYMembersrt:MinimumMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MeasurementInputDiscountRateMemberus-gaap:CurrencySwapMembercurrency:USD2020-12-310000004977afl:FairValueUnobservableInputInterestRatesUSDandinterestratesJPYMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MeasurementInputDiscountRateMemberus-gaap:CurrencySwapMembercurrency:USD2020-12-310000004977afl:FairValueUnobservableInputInterestRatesUSDandinterestratesJPYMembersrt:MinimumMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MeasurementInputDiscountRateMembercurrency:JPYus-gaap:CurrencySwapMember2020-12-310000004977afl:FairValueUnobservableInputInterestRatesUSDandinterestratesJPYMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MeasurementInputDiscountRateMembercurrency:JPYus-gaap:CurrencySwapMember2020-12-310000004977afl:AflacJapanMember2019-12-310000004977afl:AflacUSMember2019-12-310000004977us-gaap:AccidentAndHealthInsuranceSegmentMemberafl:AflacJapanMember2021-12-310000004977us-gaap:AccidentAndHealthInsuranceSegmentMemberafl:AflacJapanMember2020-12-310000004977srt:MinimumMemberus-gaap:AccidentAndHealthInsuranceSegmentMemberafl:AflacJapanMember2021-12-310000004977srt:MaximumMemberus-gaap:AccidentAndHealthInsuranceSegmentMemberafl:AflacJapanMember2021-12-310000004977us-gaap:AccidentAndHealthInsuranceSegmentMemberafl:AflacUSMember2021-12-310000004977us-gaap:AccidentAndHealthInsuranceSegmentMemberafl:AflacUSMember2020-12-310000004977srt:MinimumMemberus-gaap:AccidentAndHealthInsuranceSegmentMemberafl:AflacUSMember2021-12-310000004977srt:MaximumMemberus-gaap:AccidentAndHealthInsuranceSegmentMemberafl:AflacUSMember2021-12-310000004977srt:ConsolidationEliminationsMember2021-12-310000004977srt:ConsolidationEliminationsMember2020-12-310000004977us-gaap:LifeInsuranceSegmentMemberafl:AflacJapanMember2021-12-310000004977us-gaap:LifeInsuranceSegmentMemberafl:AflacJapanMember2020-12-310000004977us-gaap:LifeInsuranceSegmentMembersrt:MinimumMemberafl:AflacJapanMember2021-12-310000004977us-gaap:LifeInsuranceSegmentMembersrt:MaximumMemberafl:AflacJapanMember2021-12-310000004977us-gaap:LifeInsuranceSegmentMemberafl:AflacUSMember2021-12-310000004977us-gaap:LifeInsuranceSegmentMemberafl:AflacUSMember2020-12-310000004977us-gaap:LifeInsuranceSegmentMembersrt:MinimumMemberafl:AflacUSMember2021-12-310000004977us-gaap:LifeInsuranceSegmentMembersrt:MaximumMemberafl:AflacUSMember2021-12-310000004977us-gaap:AccidentAndHealthInsuranceSegmentMember2020-12-310000004977us-gaap:AccidentAndHealthInsuranceSegmentMember2019-12-310000004977us-gaap:AccidentAndHealthInsuranceSegmentMember2018-12-310000004977us-gaap:AccidentAndHealthInsuranceSegmentMember2021-01-012021-12-310000004977us-gaap:AccidentAndHealthInsuranceSegmentMember2020-01-012020-12-310000004977us-gaap:AccidentAndHealthInsuranceSegmentMember2019-01-012019-12-310000004977afl:ZurichNorthAmericasUSCorporateLifeAndPensionsBusinessMember2021-01-012021-12-310000004977afl:ZurichNorthAmericasUSCorporateLifeAndPensionsBusinessMember2020-01-012020-12-310000004977afl:ZurichNorthAmericasUSCorporateLifeAndPensionsBusinessMember2019-01-012019-12-310000004977us-gaap:AccidentAndHealthInsuranceSegmentMember2021-12-310000004977us-gaap:LifeInsuranceSegmentMember2021-12-310000004977us-gaap:LifeInsuranceSegmentMember2020-12-310000004977us-gaap:LifeInsuranceSegmentMember2019-12-310000004977us-gaap:AccidentAndHealthInsuranceSegmentMemberafl:AflacJapanMember2021-01-012021-12-310000004977us-gaap:AccidentAndHealthInsuranceSegmentMemberafl:AflacUSMember2021-01-012021-12-310000004977afl:ClosedblockMemberafl:AflacJapanMember2021-12-310000004977afl:ClosedblockMemberafl:AflacJapanMember2020-12-310000004977afl:ClosedblockMemberafl:AflacJapanMember2021-01-012021-12-310000004977afl:ClosedblockMemberafl:AflacJapanMember2020-01-012020-12-310000004977afl:ClosedblockMemberafl:AflacJapanMember2019-01-012019-12-310000004977us-gaap:OtherInsuranceProductLineMember2021-01-012021-12-310000004977us-gaap:OtherInsuranceProductLineMember2020-01-012020-12-310000004977us-gaap:OtherInsuranceProductLineMember2019-01-012019-12-310000004977srt:ConsolidationEliminationsMember2021-01-012021-12-310000004977srt:ConsolidationEliminationsMember2020-01-012020-12-310000004977srt:ConsolidationEliminationsMember2019-01-012019-12-31iso4217:JPY0000004977afl:SeniorNotesThreePointSixTwoFivePercentDueJuneTwentyTwentyThreeMember2020-12-310000004977afl:SeniorNotesThreePointSixTwoFivePercentDueJuneTwentyTwentyThreeMember2021-12-310000004977afl:SeniorNotesThreePointSixTwoFivePercentDueNovemberTwentyTwentyFourMember2020-12-310000004977afl:SeniorNotesThreePointSixTwoFivePercentDueNovemberTwentyTwentyFourMember2021-12-310000004977afl:SeniorNotesThreePointTwoFivePercentDueMarchTwentyTwentyFiveMember2021-12-310000004977afl:SeniorNotesThreePointTwoFivePercentDueMarchTwentyTwentyFiveMember2020-12-310000004977afl:SeniorNotesOnePointOneTwoFivePercentDueMarchTwentyTwentySixMember2021-12-310000004977afl:SeniorNotesOnePointOneTwoFivePercentDueMarchTwentyTwentySixMember2020-12-310000004977afl:SeniorNotesTwoPointEightSevenFivePercentDueOctoberTwentyTwentySixMember2020-12-310000004977afl:SeniorNotesTwoPointEightSevenFivePercentDueOctoberTwentyTwentySixMember2021-12-310000004977afl:SeniorNotesThreePointSixZeroPercentDueAprilTwentyThirtyMember2021-12-310000004977afl:SeniorNotesThreePointSixZeroPercentDueAprilTwentyThirtyMember2020-12-310000004977afl:SeniorNotesSixPointNineZeroPercentDueDecemberTwentyThirtyNineMember2020-12-310000004977afl:SeniorNotesSixPointNineZeroPercentDueDecemberTwentyThirtyNineMember2021-12-310000004977afl:SeniorNotesSixPointFourFivePercentDueAugustTwentyFortyMember2021-12-310000004977afl:SeniorNotesSixPointFourFivePercentDueAugustTwentyFortyMember2020-12-310000004977afl:SeniorNotesFourPointZeroZeroPercentDueOctoberTwentyFortySixMember2021-12-310000004977afl:SeniorNotesFourPointZeroZeroPercentDueOctoberTwentyFortySixMember2020-12-310000004977afl:SeniorNotesFourPointSevenFiveZeroPercentDueJanuaryTwentyFortyNineMember2020-12-310000004977afl:SeniorNotesFourPointSevenFiveZeroPercentDueJanuaryTwentyFortyNineMember2021-12-310000004977afl:SeniorNotesPointThreeZeroZeroPercentDueSeptemberTwentyTwentyFiveMember2021-12-310000004977afl:SeniorNotesPointThreeZeroZeroPercentDueSeptemberTwentyTwentyFiveMember2020-12-310000004977afl:SeniorNotesPointNineThreeTwoPercentDueJanuaryTwentyTwentySevenMember2021-12-310000004977afl:SeniorNotesPointNineThreeTwoPercentDueJanuaryTwentyTwentySevenMember2020-12-310000004977afl:SeniorNotesPointFiveZeroZeroPercentDueDecemberTwentyTwentyNineMember2020-12-310000004977afl:SeniorNotesPointFiveZeroZeroPercentDueDecemberTwentyTwentyNineMember2021-12-310000004977afl:SeniorNotesPointFiveFiveZeroPercentDueMarchTwentyThirtyMember2021-12-310000004977afl:SeniorNotesPointFiveFiveZeroPercentDueMarchTwentyThirtyMember2020-12-310000004977afl:SeniorNotesOnePointOneFiveNinePercentDueOctoberTwentyThirtyMember2020-12-310000004977afl:SeniorNotesOnePointOneFiveNinePercentDueOctoberTwentyThirtyMember2021-12-310000004977afl:SeniorNotesPointSixThreeThreePercentDueAprilTwentyThirtyOneMember2020-12-310000004977afl:SeniorNotesPointSixThreeThreePercentDueAprilTwentyThirtyOneMember2021-12-310000004977afl:SeniorNotesPointEightFourThreePercentDueDecemberTwentyThirtyOneMember2021-12-310000004977afl:SeniorNotesPointEightFourThreePercentDueDecemberTwentyThirtyOneMember2020-12-310000004977afl:SeniorNotesPointSevenFiveZeroPercentDueMarchTwentyThirtyTwoMember2021-12-310000004977afl:SeniorNotesPointSevenFiveZeroPercentDueMarchTwentyThirtyTwoMember2020-12-310000004977afl:SeniorNotesPointEightFourFourPercentDueAprilTwentyThirtyThreeMember2021-12-310000004977afl:SeniorNotesPointEightFourFourPercentDueAprilTwentyThirtyThreeMember2020-12-310000004977afl:SeniorNotesOnePointFourEightEightPercentDueOctoberTwentyThirtyThreeMember2020-12-310000004977afl:SeniorNotesOnePointFourEightEightPercentDueOctoberTwentyThirtyThreeMember2021-12-310000004977afl:SeniorNotesPointNineThreeFourPercentDueDecemberTwentyThirtyFourMember2021-12-310000004977afl:SeniorNotesPointNineThreeFourPercentDueDecemberTwentyThirtyFourMember2020-12-310000004977afl:SeniorNotesPointEightThreeZeroPercentDueMarchTwentyThirtyFiveMember2021-12-310000004977afl:SeniorNotesPointEightThreeZeroPercentDueMarchTwentyThirtyFiveMember2020-12-310000004977afl:SeniorNotesOnePointZeroThreeNinePercentDueAprilTwentyThirtySixMember2021-12-310000004977afl:SeniorNotesOnePointZeroThreeNinePercentDueAprilTwentyThirtySixMember2020-12-310000004977afl:SeniorNotesOnePointSevenFiveZeroPercentDueOctoberTwentyThirtyEightMember2021-12-310000004977afl:SeniorNotesOnePointSevenFiveZeroPercentDueOctoberTwentyThirtyEightMember2020-12-310000004977afl:SeniorNotesOnePointOneTwoTwoPercentDueDecemberTwentyThirtyNineMember2020-12-310000004977afl:SeniorNotesOnePointOneTwoTwoPercentDueDecemberTwentyThirtyNineMember2021-12-310000004977afl:SeniorNotesOnePointTwoSixFourPercentDueAprilTwentyFortyOneMember2021-12-310000004977afl:SeniorNotesOnePointTwoSixFourPercentDueAprilTwentyFortyOneMember2020-12-310000004977afl:SubordinatedNotesTwoPointOneZeroEightPercentDueOctoberTwentyFortySevenMember2020-12-310000004977afl:SubordinatedNotesTwoPointOneZeroEightPercentDueOctoberTwentyFortySevenMember2021-12-310000004977afl:SubordinatedBondsPointNineSixThreePercentDueAprilTwentyFortyNineMember2020-12-310000004977afl:SubordinatedBondsPointNineSixThreePercentDueAprilTwentyFortyNineMember2021-12-310000004977afl:SeniorNotesOnePointFiveSixZeroPercentDueAprilTwentyFiftyOneMember2020-12-310000004977afl:SeniorNotesOnePointFiveSixZeroPercentDueAprilTwentyFiftyOneMember2021-12-310000004977afl:YendenominatedLoanVariableInterestRateDueSeptemberTwentyTwentySixMember2021-12-310000004977afl:YendenominatedLoanVariableInterestRateDueSeptemberTwentyTwentySixMember2020-12-310000004977afl:YendenominatedLoanVariableInterestRateDueSeptemberTwentyTwentyNineMember2021-12-310000004977afl:YendenominatedLoanVariableInterestRateDueSeptemberTwentyTwentyNineMember2020-12-3100000049772021-04-30afl:series0000004977us-gaap:SeniorNotesMember2021-04-300000004977afl:SeniorNotesPointSixThreeThreePercentDueAprilTwentyThirtyOneMember2021-04-300000004977afl:SeniorNotesPointEightFourFourPercentDueAprilTwentyThirtyThreeMember2021-04-300000004977afl:SeniorNotesOnePointZeroThreeNinePercentDueAprilTwentyThirtySixMember2021-04-300000004977afl:SeniorNotesOnePointTwoSixFourPercentDueAprilTwentyFortyOneMember2021-04-300000004977afl:SeniorNotesOnePointFiveSixZeroPercentDueAprilTwentyFiftyOneMember2021-04-300000004977afl:SeniorNotesOnePointOneTwoFivePercentDueMarchTwentyTwentySixMember2021-03-310000004977afl:SeniorNotesOnePointOneTwoFivePercentDueMarchTwentyTwentySixMember2021-03-012021-03-310000004977afl:SeniorNotesThreePointSixZeroPercentDueAprilTwentyThirtyMember2020-04-300000004977afl:SeniorNotesThreePointSixZeroPercentDueAprilTwentyThirtyMember2020-04-012020-04-3000000049772021-03-310000004977us-gaap:SeniorNotesMember2021-03-310000004977afl:SeniorNotesPointThreeZeroZeroPercentDueSeptemberTwentyTwentyFiveMember2021-03-310000004977afl:SeniorNotesPointFiveFiveZeroPercentDueMarchTwentyThirtyMember2021-03-310000004977afl:SeniorNotesPointSevenFiveZeroPercentDueMarchTwentyThirtyTwoMember2021-03-310000004977afl:SeniorNotesPointEightThreeZeroPercentDueMarchTwentyThirtyFiveMember2021-03-310000004977us-gaap:SeniorNotesMember2020-12-310000004977afl:YendenominatedLoansMember2020-09-300000004977afl:YendenominatedLoanVariableInterestRateDueSeptemberTwentyTwentySixMember2020-09-300000004977afl:YendenominatedLoanVariableInterestRateDueSeptemberTwentyTwentySixMember2019-09-012019-09-300000004977srt:MinimumMemberafl:YendenominatedLoanVariableInterestRateDueSeptemberTwentyTwentySixMember2019-09-012019-09-300000004977afl:YendenominatedLoanVariableInterestRateDueSeptemberTwentyTwentySixMembersrt:MaximumMember2019-09-012019-09-300000004977afl:YendenominatedLoanVariableInterestRateDueSeptemberTwentyTwentyNineMember2020-09-300000004977afl:YendenominatedLoanVariableInterestRateDueSeptemberTwentyTwentyNineMember2019-09-012019-09-300000004977srt:MinimumMemberafl:YendenominatedLoanVariableInterestRateDueSeptemberTwentyTwentyNineMember2019-09-012019-09-300000004977afl:YendenominatedLoanVariableInterestRateDueSeptemberTwentyTwentyNineMembersrt:MaximumMember2019-09-012019-09-300000004977afl:SubordinatedBondsPointNineSixThreePercentDueAprilTwentyFortyNineMember2019-04-120000004977afl:SubordinatedBondsPointNineSixThreePercentDueAprilTwentyFortyNineMember2019-04-122019-04-120000004977afl:SeniorNotesFourPointSevenFiveZeroPercentDueJanuaryTwentyFortyNineMember2018-10-310000004977afl:SeniorNotesFourPointSevenFiveZeroPercentDueJanuaryTwentyFortyNineMember2018-10-012018-10-3100000049772018-10-310000004977us-gaap:SeniorNotesMember2018-10-310000004977afl:SeniorNotesOnePointOneFiveNinePercentDueOctoberTwentyThirtyMember2018-10-310000004977afl:SeniorNotesOnePointFourEightEightPercentDueOctoberTwentyThirtyThreeMember2018-10-310000004977afl:SeniorNotesOnePointSevenFiveZeroPercentDueOctoberTwentyThirtyEightMember2018-10-310000004977afl:SubordinatedNotesTwoPointOneZeroEightPercentDueOctoberTwentyFortySevenMember2017-10-310000004977afl:SubordinatedNotesTwoPointOneZeroEightPercentDueOctoberTwentyFortySevenMember2017-10-012017-10-310000004977afl:SeniorNotesPointNineThreeTwoPercentDueJanuaryTwentyTwentySevenMember2017-01-3100000049772017-09-300000004977us-gaap:SeniorNotesMember2017-09-300000004977afl:SeniorNotesTwoPointEightSevenFivePercentDueOctoberTwentyTwentySixMember2017-09-300000004977afl:SeniorNotesFourPointZeroZeroPercentDueOctoberTwentyFortySixMember2017-09-300000004977afl:SeniorNotesThreePointTwoFivePercentDueMarchTwentyTwentyFiveMember2016-03-310000004977afl:SeniorNotesThreePointSixTwoFivePercentDueNovemberTwentyTwentyFourMember2014-11-300000004977afl:SeniorNotesThreePointSixTwoFivePercentDueNovemberTwentyTwentyFourMember2014-11-012014-11-300000004977afl:SeniorNotesThreePointSixTwoFivePercentDueJuneTwentyTwentyThreeMember2013-06-300000004977afl:SeniorNotesThreePointSixTwoFivePercentDueJuneTwentyTwentyThreeMember2013-06-012013-06-300000004977afl:SeniorNotesThreePointSixTwoFivePercentDueJuneTwentyTwentyThreeMember2021-05-012021-05-310000004977afl:SeniorNotesThreePointSixTwoFivePercentDueJuneTwentyTwentyThreeMember2021-05-310000004977afl:SeniorNotesSixPointFourFivePercentDueAugustTwentyFortyMember2010-08-310000004977afl:SeniorNotesSixPointNineZeroPercentDueDecemberTwentyThirtyNineMember2009-12-310000004977afl:SeniorNotesSixPointNineZeroPercentDueDecemberTwentyThirtyNineMember2016-12-012016-12-310000004977afl:SeniorNotesSixPointNineZeroPercentDueDecemberTwentyThirtyNineMember2017-12-310000004977afl:SeniorNotesSixPointFourFivePercentDueAugustTwentyFortyMember2016-12-012016-12-310000004977afl:SeniorNotesSixPointFourFivePercentDueAugustTwentyFortyMember2017-12-310000004977afl:SeniorNotesdueTwoThousandThirtyNineandTwoThousandandFortyMember2016-12-012016-12-310000004977afl:OnehundredmilliondollarlineofcreditMember2021-01-012021-12-310000004977afl:OnehundredmilliondollarlineofcreditMember2021-12-310000004977afl:OnehundredmilliondollarlineofcreditMembersrt:MaximumMember2021-01-012021-12-310000004977afl:OnehundredbillionyenlineofcreditMember2021-01-012021-12-310000004977afl:OnehundredbillionyenlineofcreditMember2021-12-310000004977srt:MinimumMemberafl:OnehundredbillionyenlineofcreditMember2021-01-012021-12-310000004977afl:OnehundredbillionyenlineofcreditMembersrt:MaximumMember2021-01-012021-12-310000004977afl:OnebilliondollarlineofcreditMember2021-01-012021-12-310000004977afl:OnebilliondollarlineofcreditMember2021-12-310000004977srt:MinimumMemberafl:OnebilliondollarlineofcreditMember2021-01-012021-12-310000004977srt:MaximumMemberafl:OnebilliondollarlineofcreditMember2021-01-012021-12-310000004977afl:FiftymilliondollarlineofcreditMember2021-12-310000004977afl:FiftymilliondollarlineofcreditMember2021-01-012021-12-310000004977srt:MaximumMemberafl:FiftymilliondollarlineofcreditMember2021-01-012021-12-310000004977afl:TwohundredfiftymilliondollarlineofcreditMember2021-01-012021-12-310000004977afl:TwohundredfiftymilliondollarlineofcreditMember2021-12-310000004977afl:FiftybillionyenlineofcreditexpiringApril2020Member2021-01-012021-12-310000004977afl:FiftybillionyenlineofcreditexpiringApril2020Member2021-12-310000004977afl:FiftybillionyenlineofcreditexpiringNovember2020Member2021-01-012021-12-310000004977afl:FiftybillionyenlineofcreditexpiringNovember2020Member2021-12-310000004977afl:TwentyfivemilliondollarlineofcreditMember2021-01-012021-12-310000004977afl:TwentyfivemilliondollarlineofcreditMember2021-12-310000004977afl:FifteenmilliondollarlineofcreditMember2021-01-012021-12-310000004977afl:FifteenmilliondollarlineofcreditMember2021-12-310000004977afl:ThreehundredthousanddollarlineofcreditMember2021-01-012021-12-310000004977afl:ThreehundredthousanddollarlineofcreditMember2021-12-310000004977afl:FivehundredmillionyenlineofcreditMember2021-01-012021-12-310000004977afl:FivehundredmillionyenlineofcreditMember2021-12-310000004977afl:NineHundredMillionYenLineOfCreditMember2021-01-012021-12-310000004977afl:NineHundredMillionYenLineOfCreditMember2021-12-310000004977afl:SixHundredMillionYenLineOfCreditMember2021-01-012021-12-310000004977afl:SixHundredMillionYenLineOfCreditMember2021-12-310000004977afl:ThirtyMillionDollarLineOfCreditMember2021-01-012021-12-310000004977afl:ThirtyMillionDollarLineOfCreditMember2021-12-310000004977us-gaap:NotesPayableOtherPayablesMember2020-12-310000004977us-gaap:LineOfCreditMember2021-12-310000004977us-gaap:NotesPayableOtherPayablesMember2021-12-310000004977us-gaap:LineOfCreditMember2020-12-3100000049772020-09-012020-09-300000004977us-gaap:CapitalLossCarryforwardMember2021-12-310000004977afl:ForeignTaxCreditMember2021-12-310000004977afl:TaxYear2030Memberafl:ForeignTaxCreditMember2021-12-310000004977afl:ForeignTaxCreditMemberafl:TaxYear2031Member2021-12-310000004977afl:ShareRepurchaseProgramMember2021-01-012021-12-310000004977afl:ShareRepurchaseProgramMember2020-01-012020-12-310000004977afl:ShareRepurchaseProgramMember2019-01-012019-12-310000004977afl:ShareRepurchaseAuthorization2020Member2020-08-31afl:votesPerShare0000004977us-gaap:AccumulatedTranslationAdjustmentMember2020-12-310000004977us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2020-12-310000004977us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2020-12-310000004977us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2020-12-310000004977us-gaap:AccumulatedTranslationAdjustmentMember2021-01-012021-12-310000004977us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2021-01-012021-12-310000004977us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2021-01-012021-12-310000004977us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2021-01-012021-12-310000004977us-gaap:AccumulatedTranslationAdjustmentMember2021-12-310000004977us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2021-12-310000004977us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2021-12-310000004977us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2021-12-310000004977us-gaap:AccumulatedTranslationAdjustmentMember2019-12-310000004977us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2019-12-310000004977us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2019-12-310000004977us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2019-12-310000004977us-gaap:AccumulatedTranslationAdjustmentMemberus-gaap:AccountingStandardsUpdate201904Membersrt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2019-12-310000004977us-gaap:AccountingStandardsUpdate201904Memberus-gaap:AccumulatedNetUnrealizedInvestmentGainLossMembersrt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2019-12-310000004977us-gaap:AccountingStandardsUpdate201904Memberus-gaap:AccumulatedGainLossNetCashFlowHedgeParentMembersrt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2019-12-310000004977us-gaap:AccountingStandardsUpdate201904Memberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentMembersrt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2019-12-310000004977srt:CumulativeEffectPeriodOfAdoptionAdjustedBalanceMemberus-gaap:AccumulatedTranslationAdjustmentMemberus-gaap:AccountingStandardsUpdate201904Member2019-12-310000004977srt:CumulativeEffectPeriodOfAdoptionAdjustedBalanceMemberus-gaap:AccountingStandardsUpdate201904Memberus-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2019-12-310000004977srt:CumulativeEffectPeriodOfAdoptionAdjustedBalanceMemberus-gaap:AccountingStandardsUpdate201904Memberus-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2019-12-310000004977srt:CumulativeEffectPeriodOfAdoptionAdjustedBalanceMemberus-gaap:AccountingStandardsUpdate201904Memberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2019-12-310000004977srt:CumulativeEffectPeriodOfAdoptionAdjustedBalanceMemberus-gaap:AccountingStandardsUpdate201904Member2019-12-310000004977us-gaap:AccumulatedTranslationAdjustmentMember2020-01-012020-12-310000004977us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2020-01-012020-12-310000004977us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2020-01-012020-12-310000004977us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2020-01-012020-12-310000004977us-gaap:AccumulatedTranslationAdjustmentMember2018-12-310000004977us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2018-12-310000004977us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2018-12-310000004977us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2018-12-310000004977us-gaap:AccumulatedTranslationAdjustmentMember2019-01-012019-12-310000004977us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2019-01-012019-12-310000004977us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2019-01-012019-12-310000004977us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2019-01-012019-12-310000004977us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2021-01-012021-12-310000004977us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2021-01-012021-12-310000004977us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLossMember2021-01-012021-12-310000004977us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCreditMember2021-01-012021-12-310000004977us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2021-01-012021-12-310000004977us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2020-01-012020-12-310000004977us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLossMember2020-01-012020-12-310000004977us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCreditMember2020-01-012020-12-310000004977us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2020-01-012020-12-310000004977us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2020-01-012020-12-310000004977us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2019-01-012019-12-310000004977us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLossMember2019-01-012019-12-310000004977us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCreditMember2019-01-012019-12-310000004977us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2019-01-012019-12-310000004977us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2019-01-012019-12-310000004977afl:LongTermIncentivePlanMemberMember2021-01-012021-12-310000004977afl:LongTermIncentivePlanMemberMember2021-12-310000004977afl:LongTermIncentivePlanMemberMemberafl:PerformanceBasedVestingConditionMember2021-01-012021-12-310000004977us-gaap:StockCompensationPlanMember2021-01-012021-12-310000004977us-gaap:StockCompensationPlanMember2020-01-012020-12-310000004977us-gaap:StockCompensationPlanMember2019-01-012019-12-310000004977us-gaap:EmployeeStockOptionMember2021-01-012021-12-310000004977us-gaap:EmployeeStockOptionMember2020-01-012020-12-310000004977us-gaap:EmployeeStockOptionMember2019-01-012019-12-310000004977afl:Range1Member2021-01-012021-12-310000004977afl:Range1Member2021-12-310000004977afl:Range2Member2021-01-012021-12-310000004977afl:Range2Member2021-12-310000004977afl:Range3Member2021-01-012021-12-310000004977afl:Range3Member2021-12-310000004977afl:Range4Member2021-01-012021-12-310000004977afl:Range4Member2021-12-310000004977afl:Range5Member2021-01-012021-12-310000004977afl:Range5Member2021-12-310000004977us-gaap:RestrictedStockMemberafl:PerformanceBasedVestingConditionMember2021-01-012021-12-310000004977us-gaap:RestrictedStockMemberafl:PerformanceBasedVestingConditionMember2020-02-012020-02-290000004977afl:PerformanceBasedVestingConditionMemberus-gaap:RestrictedStockUnitsRSUMember2021-01-012021-12-310000004977afl:PerformanceBasedVestingConditionMemberus-gaap:RestrictedStockUnitsRSUMember2020-11-012020-11-300000004977us-gaap:RestrictedStockMember2018-12-310000004977us-gaap:RestrictedStockMember2019-01-012019-12-310000004977us-gaap:RestrictedStockMember2019-12-310000004977us-gaap:RestrictedStockMember2020-01-012020-12-310000004977us-gaap:RestrictedStockMember2020-12-310000004977us-gaap:RestrictedStockMember2021-01-012021-12-310000004977us-gaap:RestrictedStockMember2021-12-310000004977us-gaap:RestrictedStockMemberafl:PerformanceBasedVestingConditionMember2021-12-310000004977afl:AflacMember2021-12-310000004977afl:AflacMember2020-12-310000004977afl:CAICMember2021-12-310000004977afl:CAICMember2020-12-310000004977afl:TOICMember2021-12-310000004977afl:TOICMember2020-12-310000004977afl:AflacNewYorkMember2021-12-310000004977afl:AflacNewYorkMember2020-12-310000004977afl:AflacMember2021-01-012021-12-310000004977afl:AflacMember2020-01-012020-12-310000004977afl:AflacMember2019-01-012019-12-310000004977afl:CAICMember2021-01-012021-12-310000004977afl:CAICMember2020-01-012020-12-310000004977afl:CAICMember2019-01-012019-12-310000004977afl:TOICMember2021-01-012021-12-310000004977afl:TOICMember2020-01-012020-12-310000004977afl:TOICMember2019-01-012019-12-310000004977afl:AflacNewYorkMember2021-01-012021-12-310000004977afl:AflacNewYorkMember2020-01-012020-12-310000004977afl:AflacNewYorkMember2019-01-012019-12-310000004977srt:MinimumMember2014-01-012014-12-3100000049772014-01-012014-12-310000004977us-gaap:PensionPlansDefinedBenefitMembercountry:JP2020-12-310000004977us-gaap:PensionPlansDefinedBenefitMembercountry:JP2019-12-310000004977us-gaap:PensionPlansDefinedBenefitMembercountry:US2020-12-310000004977us-gaap:PensionPlansDefinedBenefitMembercountry:US2019-12-310000004977us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2020-12-310000004977us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2019-12-310000004977us-gaap:PensionPlansDefinedBenefitMembercountry:JP2021-01-012021-12-310000004977us-gaap:PensionPlansDefinedBenefitMembercountry:JP2020-01-012020-12-310000004977us-gaap:PensionPlansDefinedBenefitMembercountry:US2021-01-012021-12-310000004977us-gaap:PensionPlansDefinedBenefitMembercountry:US2020-01-012020-12-310000004977us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-01-012021-12-310000004977us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2020-01-012020-12-310000004977us-gaap:PensionPlansDefinedBenefitMembercountry:JP2021-12-310000004977us-gaap:PensionPlansDefinedBenefitMembercountry:US2021-12-310000004977us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-12-310000004977us-gaap:PensionPlansDefinedBenefitMembercountry:JP2019-01-012019-12-310000004977us-gaap:PensionPlansDefinedBenefitMembercountry:US2019-01-012019-12-310000004977us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2019-01-012019-12-310000004977country:JP2021-01-012021-12-310000004977country:US2021-01-012021-12-310000004977us-gaap:PensionPlansDefinedBenefitMemberus-gaap:ForeignPlanMember2021-12-310000004977afl:PensionPlansDefinedBenefitMemberExcludingExecutiveAndDirectorPlansMembercountry:US2021-01-012021-12-310000004977us-gaap:PensionPlansDefinedBenefitMembercountry:JPafl:DomesticEquitySecuritiesMember2021-12-310000004977us-gaap:PensionPlansDefinedBenefitMemberafl:DomesticEquitySecuritiesMembercountry:US2021-12-310000004977us-gaap:PensionPlansDefinedBenefitMembercountry:JPafl:InternationalEquitySecuritiesMember2021-12-310000004977us-gaap:PensionPlansDefinedBenefitMembercountry:USafl:InternationalEquitySecuritiesMember2021-12-310000004977us-gaap:PensionPlansDefinedBenefitMembercountry:JPus-gaap:FixedIncomeFundsMember2021-12-310000004977us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FixedIncomeFundsMembercountry:US2021-12-310000004977us-gaap:PensionPlansDefinedBenefitMembercountry:JPus-gaap:OtherInvestmentsMember2021-12-310000004977us-gaap:PensionPlansDefinedBenefitMemberus-gaap:OtherInvestmentsMembercountry:US2021-12-310000004977afl:PlanAssetsMember2021-01-012021-12-310000004977us-gaap:FairValueInputsLevel2Memberus-gaap:PensionPlansDefinedBenefitMembercountry:JPafl:DomesticEquitySecuritiesMember2021-12-310000004977us-gaap:FairValueInputsLevel2Memberus-gaap:PensionPlansDefinedBenefitMembercountry:JPafl:DomesticEquitySecuritiesMember2020-12-310000004977us-gaap:FairValueInputsLevel2Memberus-gaap:PensionPlansDefinedBenefitMembercountry:JPafl:InternationalEquitySecuritiesMember2021-12-310000004977us-gaap:FairValueInputsLevel2Memberus-gaap:PensionPlansDefinedBenefitMembercountry:JPafl:InternationalEquitySecuritiesMember2020-12-310000004977us-gaap:FairValueInputsLevel2Memberus-gaap:PensionPlansDefinedBenefitMembercountry:JPus-gaap:ForeignGovernmentDebtSecuritiesMember2021-12-310000004977us-gaap:FairValueInputsLevel2Memberus-gaap:PensionPlansDefinedBenefitMembercountry:JPus-gaap:ForeignGovernmentDebtSecuritiesMember2020-12-310000004977us-gaap:FairValueInputsLevel2Memberus-gaap:PensionPlansDefinedBenefitMembercountry:JPafl:InternationalBondsMember2021-12-310000004977us-gaap:FairValueInputsLevel2Memberus-gaap:PensionPlansDefinedBenefitMembercountry:JPafl:InternationalBondsMember2020-12-310000004977us-gaap:FairValueInputsLevel2Memberus-gaap:PensionPlansDefinedBenefitMembercountry:JPafl:InsuranceContractsMember2021-12-310000004977us-gaap:FairValueInputsLevel2Memberus-gaap:PensionPlansDefinedBenefitMembercountry:JPafl:InsuranceContractsMember2020-12-310000004977us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel1Membercountry:USus-gaap:DefinedBenefitPlanEquitySecuritiesUsLargeCapMember2021-12-310000004977us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel1Membercountry:USus-gaap:DefinedBenefitPlanEquitySecuritiesUsLargeCapMember2020-12-310000004977us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel1Memberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMidCapMembercountry:US2021-12-310000004977us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel1Memberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMidCapMembercountry:US2020-12-310000004977us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel1Memberus-gaap:CommercialRealEstateMembercountry:US2021-12-310000004977us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel1Memberus-gaap:CommercialRealEstateMembercountry:US2020-12-310000004977us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel1Memberus-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMembercountry:US2021-12-310000004977us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel1Memberus-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMembercountry:US2020-12-310000004977us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FixedIncomeFundsMemberus-gaap:FairValueInputsLevel1Membercountry:US2021-12-310000004977us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FixedIncomeFundsMemberus-gaap:FairValueInputsLevel1Membercountry:US2020-12-310000004977us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel1Memberafl:AflacIncorporatedCommonStockMembercountry:US2021-12-310000004977us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel1Memberafl:AflacIncorporatedCommonStockMembercountry:US2020-12-310000004977us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel1Memberus-gaap:CashAndCashEquivalentsMembercountry:US2021-12-310000004977us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel1Memberus-gaap:CashAndCashEquivalentsMembercountry:US2020-12-310000004977srt:MaximumMember2021-01-012021-12-310000004977srt:MaximumMember2021-01-012021-01-010000004977afl:AssociateStockBonusPlanMember2021-01-012021-12-310000004977afl:AssociateStockBonusPlanMember2020-01-012020-12-310000004977afl:AssociateStockBonusPlanMember2019-01-012019-12-3100000049772020-10-012020-12-31afl:agreements0000004977afl:MainframeandServerComputerOperationsandSupportMember2021-01-012021-12-310000004977afl:TechnologyandConsultingCompanyApplicationMaintenanceAndDevelopmentServicesMember2021-01-012021-12-310000004977afl:ManagementConsultingandTechnologyServicesCompanyApplicationMaintenanceAndDevelopmentServicesMember2021-01-012021-12-310000004977afl:InformationTechnologyandDataServicesCompanyApplicationMaintenanceandDevelopmentServicesFirstAgreementMember2021-01-012021-12-310000004977afl:InformationTechnologyandDataServicesCompanyApplicationMaintenanceandDevelopmentServicesSecondAgreementMember2021-01-012021-12-310000004977afl:EnterpriseSoftwareLicensingAgreementMember2021-01-012021-12-3100000049772017-03-3100000049772017-01-012017-03-310000004977srt:ParentCompanyMember2021-01-012021-12-310000004977srt:ParentCompanyMember2020-01-012020-12-310000004977srt:ParentCompanyMember2019-01-012019-12-310000004977afl:SeniorNotesThreePointSixTwoFivePercentDueJuneTwentyTwentyThreeMembersrt:ParentCompanyMember2021-01-012021-12-310000004977afl:SeniorNotesFourPointZeroZeroPercentDueFebruaryTwentyTwentyTwoMembersrt:ParentCompanyMember2020-01-012020-12-310000004977srt:ParentCompanyMember2021-12-310000004977srt:ParentCompanyMember2020-12-310000004977srt:ParentCompanyMember2019-12-310000004977srt:ParentCompanyMember2018-12-310000004977afl:SeniorNotesThreePointSixTwoFivePercentDueJuneTwentyTwentyThreeMembersrt:ParentCompanyMember2020-12-310000004977afl:SeniorNotesThreePointSixTwoFivePercentDueJuneTwentyTwentyThreeMembersrt:ParentCompanyMember2021-12-310000004977afl:SeniorNotesThreePointSixTwoFivePercentDueNovemberTwentyTwentyFourMembersrt:ParentCompanyMember2020-12-310000004977afl:SeniorNotesThreePointSixTwoFivePercentDueNovemberTwentyTwentyFourMembersrt:ParentCompanyMember2021-12-310000004977afl:SeniorNotesThreePointTwoFivePercentDueMarchTwentyTwentyFiveMembersrt:ParentCompanyMember2021-12-310000004977afl:SeniorNotesThreePointTwoFivePercentDueMarchTwentyTwentyFiveMembersrt:ParentCompanyMember2020-12-310000004977srt:ParentCompanyMemberafl:SeniorNotesOnePointOneTwoFivePercentDueMarchTwentyTwentySixMember2020-12-310000004977srt:ParentCompanyMemberafl:SeniorNotesOnePointOneTwoFivePercentDueMarchTwentyTwentySixMember2021-12-310000004977srt:ParentCompanyMemberafl:SeniorNotesTwoPointEightSevenFivePercentDueOctoberTwentyTwentySixMember2021-12-310000004977srt:ParentCompanyMemberafl:SeniorNotesTwoPointEightSevenFivePercentDueOctoberTwentyTwentySixMember2020-12-310000004977afl:SeniorNotesThreePointSixZeroPercentDueAprilTwentyThirtyMembersrt:ParentCompanyMember2021-12-310000004977afl:SeniorNotesThreePointSixZeroPercentDueAprilTwentyThirtyMembersrt:ParentCompanyMember2020-12-310000004977afl:SeniorNotesSixPointNineZeroPercentDueDecemberTwentyThirtyNineMembersrt:ParentCompanyMember2021-12-310000004977afl:SeniorNotesSixPointNineZeroPercentDueDecemberTwentyThirtyNineMembersrt:ParentCompanyMember2020-12-310000004977srt:ParentCompanyMemberafl:SeniorNotesSixPointFourFivePercentDueAugustTwentyFortyMember2021-12-310000004977srt:ParentCompanyMemberafl:SeniorNotesSixPointFourFivePercentDueAugustTwentyFortyMember2020-12-310000004977afl:SeniorNotesFourPointZeroZeroPercentDueOctoberTwentyFortySixMembersrt:ParentCompanyMember2021-12-310000004977afl:SeniorNotesFourPointZeroZeroPercentDueOctoberTwentyFortySixMembersrt:ParentCompanyMember2020-12-310000004977afl:SeniorNotesFourPointSevenFiveZeroPercentDueJanuaryTwentyFortyNineMembersrt:ParentCompanyMember2021-12-310000004977afl:SeniorNotesFourPointSevenFiveZeroPercentDueJanuaryTwentyFortyNineMembersrt:ParentCompanyMember2020-12-310000004977afl:SeniorNotesPointThreeZeroZeroPercentDueSeptemberTwentyTwentyFiveMembersrt:ParentCompanyMember2020-12-310000004977afl:SeniorNotesPointThreeZeroZeroPercentDueSeptemberTwentyTwentyFiveMembersrt:ParentCompanyMember2021-12-310000004977afl:SeniorNotesPointNineThreeTwoPercentDueJanuaryTwentyTwentySevenMembersrt:ParentCompanyMember2021-12-310000004977afl:SeniorNotesPointNineThreeTwoPercentDueJanuaryTwentyTwentySevenMembersrt:ParentCompanyMember2020-12-310000004977afl:SeniorNotesPointFiveZeroZeroPercentDueDecemberTwentyTwentyNineMembersrt:ParentCompanyMember2021-12-310000004977afl:SeniorNotesPointFiveZeroZeroPercentDueDecemberTwentyTwentyNineMembersrt:ParentCompanyMember2020-12-310000004977afl:SeniorNotesPointFiveFiveZeroPercentDueMarchTwentyThirtyMembersrt:ParentCompanyMember2021-12-310000004977afl:SeniorNotesPointFiveFiveZeroPercentDueMarchTwentyThirtyMembersrt:ParentCompanyMember2020-12-310000004977srt:ParentCompanyMemberafl:SeniorNotesOnePointOneFiveNinePercentDueOctoberTwentyThirtyMember2020-12-310000004977srt:ParentCompanyMemberafl:SeniorNotesOnePointOneFiveNinePercentDueOctoberTwentyThirtyMember2021-12-310000004977afl:SeniorNotesPointSixThreeThreePercentDueAprilTwentyThirtyOneMembersrt:ParentCompanyMember2021-12-310000004977afl:SeniorNotesPointSixThreeThreePercentDueAprilTwentyThirtyOneMembersrt:ParentCompanyMember2020-12-310000004977afl:SeniorNotesPointEightFourThreePercentDueDecemberTwentyThirtyOneMembersrt:ParentCompanyMember2020-12-310000004977afl:SeniorNotesPointEightFourThreePercentDueDecemberTwentyThirtyOneMembersrt:ParentCompanyMember2021-12-310000004977srt:ParentCompanyMemberafl:SeniorNotesPointSevenFiveZeroPercentDueMarchTwentyThirtyTwoMember2021-12-310000004977srt:ParentCompanyMemberafl:SeniorNotesPointSevenFiveZeroPercentDueMarchTwentyThirtyTwoMember2020-12-310000004977srt:ParentCompanyMemberafl:SeniorNotesPointEightFourFourPercentDueAprilTwentyThirtyThreeMember2020-12-310000004977srt:ParentCompanyMemberafl:SeniorNotesPointEightFourFourPercentDueAprilTwentyThirtyThreeMember2021-12-310000004977afl:SeniorNotesOnePointFourEightEightPercentDueOctoberTwentyThirtyThreeMembersrt:ParentCompanyMember2020-12-310000004977afl:SeniorNotesOnePointFourEightEightPercentDueOctoberTwentyThirtyThreeMembersrt:ParentCompanyMember2021-12-310000004977afl:SeniorNotesPointNineThreeFourPercentDueDecemberTwentyThirtyFourMembersrt:ParentCompanyMember2020-12-310000004977afl:SeniorNotesPointNineThreeFourPercentDueDecemberTwentyThirtyFourMembersrt:ParentCompanyMember2021-12-310000004977srt:ParentCompanyMemberafl:SeniorNotesPointEightThreeZeroPercentDueMarchTwentyThirtyFiveMember2020-12-310000004977srt:ParentCompanyMemberafl:SeniorNotesPointEightThreeZeroPercentDueMarchTwentyThirtyFiveMember2021-12-310000004977srt:ParentCompanyMemberafl:SeniorNotesOnePointZeroThreeNinePercentDueAprilTwentyThirtySixMember2021-12-310000004977srt:ParentCompanyMemberafl:SeniorNotesOnePointZeroThreeNinePercentDueAprilTwentyThirtySixMember2020-12-310000004977srt:ParentCompanyMemberafl:SeniorNotesOnePointSevenFiveZeroPercentDueOctoberTwentyThirtyEightMember2021-12-310000004977srt:ParentCompanyMemberafl:SeniorNotesOnePointSevenFiveZeroPercentDueOctoberTwentyThirtyEightMember2020-12-310000004977srt:ParentCompanyMemberafl:SeniorNotesOnePointOneTwoTwoPercentDueDecemberTwentyThirtyNineMember2020-12-310000004977srt:ParentCompanyMemberafl:SeniorNotesOnePointOneTwoTwoPercentDueDecemberTwentyThirtyNineMember2021-12-310000004977afl:SeniorNotesOnePointTwoSixFourPercentDueAprilTwentyFortyOneMembersrt:ParentCompanyMember2020-12-310000004977afl:SeniorNotesOnePointTwoSixFourPercentDueAprilTwentyFortyOneMembersrt:ParentCompanyMember2021-12-310000004977afl:SubordinatedNotesTwoPointOneZeroEightPercentDueOctoberTwentyFortySevenMembersrt:ParentCompanyMember2021-12-310000004977afl:SubordinatedNotesTwoPointOneZeroEightPercentDueOctoberTwentyFortySevenMembersrt:ParentCompanyMember2020-12-310000004977srt:ParentCompanyMemberafl:SeniorNotesOnePointFiveSixZeroPercentDueAprilTwentyFiftyOneMember2020-12-310000004977srt:ParentCompanyMemberafl:SeniorNotesOnePointFiveSixZeroPercentDueAprilTwentyFiftyOneMember2021-12-310000004977afl:YendenominatedLoanVariableInterestRateDueSeptemberTwentyTwentySixMembersrt:ParentCompanyMember2021-12-310000004977afl:YendenominatedLoanVariableInterestRateDueSeptemberTwentyTwentySixMembersrt:ParentCompanyMember2020-12-310000004977afl:YendenominatedLoanVariableInterestRateDueSeptemberTwentyTwentyNineMembersrt:ParentCompanyMember2021-12-310000004977afl:YendenominatedLoanVariableInterestRateDueSeptemberTwentyTwentyNineMembersrt:ParentCompanyMember2020-12-310000004977srt:ParentCompanyMember2021-04-300000004977us-gaap:SeniorNotesMembersrt:ParentCompanyMember2021-04-300000004977afl:SeniorNotesPointSixThreeThreePercentDueAprilTwentyThirtyOneMembersrt:ParentCompanyMember2021-04-300000004977srt:ParentCompanyMemberafl:SeniorNotesPointEightFourFourPercentDueAprilTwentyThirtyThreeMember2021-04-300000004977srt:ParentCompanyMemberafl:SeniorNotesOnePointZeroThreeNinePercentDueAprilTwentyThirtySixMember2021-04-300000004977afl:SeniorNotesOnePointTwoSixFourPercentDueAprilTwentyFortyOneMembersrt:ParentCompanyMember2021-04-300000004977srt:ParentCompanyMemberafl:SeniorNotesOnePointFiveSixZeroPercentDueAprilTwentyFiftyOneMember2021-04-300000004977afl:SeniorNotesThreePointSixTwoFivePercentDueJuneTwentyTwentyThreeMembersrt:ParentCompanyMember2021-05-012021-05-310000004977afl:SeniorNotesThreePointSixTwoFivePercentDueJuneTwentyTwentyThreeMembersrt:ParentCompanyMember2021-05-310000004977srt:ParentCompanyMemberafl:SeniorNotesOnePointOneTwoFivePercentDueMarchTwentyTwentySixMember2021-03-310000004977srt:ParentCompanyMemberafl:SeniorNotesOnePointOneTwoFivePercentDueMarchTwentyTwentySixMember2021-03-012021-03-310000004977srt:ParentCompanyMemberafl:ShareholderDividendReinvestmentMember2021-01-012021-12-310000004977srt:ParentCompanyMemberafl:ShareholderDividendReinvestmentMember2020-01-012020-12-310000004977srt:ParentCompanyMemberafl:ShareholderDividendReinvestmentMember2019-01-012019-12-310000004977us-gaap:CorporateAndOtherMember2021-12-310000004977us-gaap:CorporateAndOtherMember2020-12-310000004977us-gaap:CorporateAndOtherMember2020-01-012020-12-310000004977us-gaap:CorporateAndOtherMember2019-01-012019-12-310000004977us-gaap:LifeInsuranceSegmentMember2021-01-012021-12-310000004977us-gaap:LifeInsuranceSegmentMember2020-01-012020-12-310000004977us-gaap:LifeInsuranceSegmentMember2019-01-012019-12-31