UNM


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

Table of contents



us-gaap:CommonStockValue
us-gaap:ConsolidatedEntities

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:BenefitsLossesAndExpenses

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:DeferredPolicyAcquisitionCostAmortizationExpense

us-gaap:GainLossOnInvestments
unm:PhaseOfSignificantTransaction, unm:SignificantTransaction
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, unm:SignificantTransaction
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation, us-gaap:IncomeStatementLocation
us-gaap:ConsolidationItems
us-gaap:GainsLossesOnExtinguishmentOfDebt

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
us-gaap:ConsolidationItems
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

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

us-gaap:InterestAndDebtExpense
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation, us-gaap:IncomeStatementLocation
us-gaap:DerivativeInstrumentRisk, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

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

us-gaap:NetInvestmentIncome
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation, us-gaap:IncomeStatementLocation
us-gaap:DerivativeInstrumentRisk, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents
us-gaap:ConsolidationItems
us-gaap:OperatingIncomeLoss
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherIncome
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:PolicyholderBenefitsAndClaimsIncurredNet
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:PremiumsEarnedNet

us-gaap:Revenues
us-gaap:ConsolidationItems

us-gaap:Assets
us-gaap:ConsolidatedEntities
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:Liabilities
us-gaap:ConsolidatedEntities

us-gaap:LiabilitiesAndStockholdersEquity
us-gaap:ConsolidatedEntities

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

us-gaap:Cash

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:PropertyPlantAndEquipmentNet
us-gaap:ConsolidatedEntities
us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures

us-gaap:Goodwill
us-gaap:StatementBusinessSegments

us-gaap:OperatingLeaseRightOfUseAsset

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

us-gaap:OtherAssets
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:LongTermDebtCurrent

us-gaap:LongTermDebt

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

us-gaap:DeferredFinanceCostsNoncurrentNet
us-gaap:ConsolidatedEntities

us-gaap:LongTermDebtAndCapitalLeaseObligations
us-gaap:ConsolidatedEntities
us-gaap:FairValueByMeasurementFrequency

us-gaap:DeferredIncomeTaxLiabilitiesNet
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
us-gaap:RetirementPlanType

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:OperatingLeaseLiability

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

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

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue
us-gaap:ConsolidatedEntities

us-gaap:AdditionalPaidInCapitalCommonStock
us-gaap:ConsolidatedEntities

us-gaap:RetainedEarningsAccumulatedDeficit
us-gaap:ConsolidatedEntities

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax
us-gaap:ConsolidatedEntities

us-gaap:TreasuryStockValue
us-gaap:ConsolidatedEntities
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodValueNewIssues

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashAndCashEquivalentsPeriodIncreaseDecrease

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:NetCashProvidedByUsedInOperatingActivities

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

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:ProceedsFromIssuanceOfLongTermDebt

us-gaap:RepaymentsOfLongTermDebt

us-gaap:PaymentsOfDividends
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxAssetsNet

us-gaap:UnrecognizedTaxBenefits

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:ProceedsFromRepaymentsOfShortTermDebt
us-gaap:ConsolidationItems
unm:AdjustedOperatingRevenue
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
unm:SignificantTransaction
unm:AmortizationOfPrepaidReinsurancePremium
us-gaap:ConsolidationItems, unm:SignificantTransaction

unm:CashReceivedRelatedToActiveLifeVolatilityCoverAgreementReinsuranceAgreement

unm:ChangeInAdjustmentToDeferredAcquisitionCostsAndReservesForFuturePolicyAndContractBenefitsNetOfReinsuranceAndNetOfTaxExpenseBenefit

unm:ChangeInAdjustmentToDeferredAcquisitionCostsAndReservesForFuturePolicyAndContractBenefitsNetOfReinsuranceTaxExpense
us-gaap:ConsolidationItems, unm:SignificantTransaction
unm:ChangeInBenefitReservesAndTransactionCosts

unm:CostRelatedToEarlyRetirementOfDebt
us-gaap:ConsolidationItems
unm:CostsRelatedToOrganizationalDesignUpdate

unm:DebtSecuritiesAvailableForSaleAllowanceForCreditLossPeriodIncreaseDecreaseAndOtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet

unm:FinancingReceivablesAllowanceForCreditLossesPeriodIncreaseDecreaseCommercialMortgageLoansAndUnfundedLoanCommitments
unm:PhaseOfSignificantTransaction, unm:SignificantTransaction
unm:IncreaseInBenefitsAndChangeInReservesForFutureBenefits

unm:InvestmentIncomeOnPfaAssets

unm:NetCashPaidInRelationToReinsuranceAgreement

unm:NotionalAmountOfDerivativesAdditions
unm:EquityDerivativeContractType, us-gaap:DerivativeInstrumentRisk
unm:InterestRateDerivativesContractType, us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeInstrumentRisk

unm:NotionalAmountOfDerivativesForeignCurrency
us-gaap:CreditDerivativesByContractType, us-gaap:DerivativeInstrumentRisk

unm:NotionalAmountOfDerivativesTerminations
unm:InterestRateDerivativesContractType, us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeInstrumentRisk

unm:OtherComprehensiveIncomeLossNetGainOnHedgesAdjustmentNetOfTax

unm:OtherComprehensiveIncomeLossNetGainOnHedgesAdjustmentTax

unm:OtherInvestmentsGrossRealizedGains

unm:OtherInvestmentsGrossRealizedLosses

unm:ReservesCededPursuantToReinsuranceTransaction

unm:TaxBenefitsfromLowIncomeHousingInvestments

us-gaap:AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount

us-gaap:AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization

us-gaap:AvailableForSaleSecuritiesGrossRealizedGains

us-gaap:AvailableForSaleSecuritiesGrossRealizedLosses

us-gaap:CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths

us-gaap:CurrentIncomeTaxExpenseBenefit
dei:LegalEntity
us-gaap:DebtInstrumentPeriodicPaymentPrincipal
us-gaap:FinancialInstrument
us-gaap:DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotPreviouslyRecorded
us-gaap:FinancialInstrument
us-gaap:DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotToSellBeforeRecoveryCreditLossPreviouslyRecordedExpenseReversal
us-gaap:FinancialInstrument
us-gaap:DebtSecuritiesAvailableForSaleAllowanceForCreditLossSecuritiesSold
us-gaap:FinancialInstrument
us-gaap:DebtSecuritiesAvailableForSaleChangeInPresentValueExpenseReversal

us-gaap:DebtSecuritiesAvailableForSaleRealizedGain

us-gaap:DebtSecuritiesAvailableForSaleRealizedLoss

us-gaap:DeferredPolicyAcquisitionCostsAdditions

us-gaap:DeferredPolicyAcquisitionCostsPeriodIncreaseDecrease
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit
unm:AnnuityContract, us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanBenefitObligationBenefitsPaid
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanInterestCost
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanServiceCost

us-gaap:DepreciationAmortizationAndAccretionNet

us-gaap:DerivativeGainLossOnDerivativeNet
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation, us-gaap:IncomeStatementLocation
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:HedgingDesignation
us-gaap:StatementEquityComponents
us-gaap:DividendsCash

us-gaap:EmbeddedDerivativeGainLossOnEmbeddedDerivativeNet
us-gaap:FairValueByAssetClass
us-gaap:FairValueAssetLiabilityRecurringBasisStillHeldUnrealizedGainLossOci
us-gaap:FairValueByAssetClass
us-gaap:FairValueAssetRecurringBasisStillHeldUnrealizedGainLossOci
us-gaap:DerivativeInstrumentRisk
us-gaap:FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss
us-gaap:FairValueByAssetClass
us-gaap:FairValueByAssetClass
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1
us-gaap:FairValueByAssetClass
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss
us-gaap:FairValueByAssetClass
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases
us-gaap:FairValueByAssetClass
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales
us-gaap:FairValueByAssetClass
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3
us-gaap:FairValueByAssetClass
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3
us-gaap:DerivativeInstrumentRisk
us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInEarnings

us-gaap:ForeignCurrencyTransactionGainLossBeforeTax

us-gaap:GainLossFromComponentsExcludedFromAssessmentOfFairValueHedgeEffectivenessNet
us-gaap:DerivativeInstrumentRisk, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents
us-gaap:GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ImpairmentOfRealEstate

us-gaap:IncreaseDecreaseInAccruedIncomeTaxesPayable

us-gaap:IncreaseDecreaseInAccruedInvestmentIncomeReceivable

us-gaap:IncreaseDecreaseInCashCollateralForLoanedSecurities

us-gaap:IncreaseDecreaseInDeferredPolicyAcquisitionCosts

us-gaap:IncreaseDecreaseInInsuranceLiabilities

us-gaap:IncreaseDecreaseInOtherAccruedLiabilities

us-gaap:IncreaseDecreaseInReceivables

us-gaap:InsuranceCommissions

us-gaap:InterestRateCashFlowHedgeGainLossReclassifiedToEarningsNet

us-gaap:InvestmentIncomeInterestAndDividend
us-gaap:InvestmentType

us-gaap:InvestmentIncomeInvestmentExpense

us-gaap:LaborAndRelatedExpense

us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1

us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1
us-gaap:NatureOfExpense
us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1

us-gaap:OperatingLeaseImpairmentLoss
us-gaap:ConsolidationItems

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax
unm:ComponentOfNetUnrealizedGainOnSecurities
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation
us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax
us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation

us-gaap:OtherCostAndExpenseOperating
unm:PhaseOfSignificantTransaction, unm:SignificantTransaction
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:OtherNoncashIncomeExpense
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents
us-gaap:OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet

us-gaap:OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAvailableforsaleSecurities

us-gaap:PaymentsForLossesAndLossAdjustmentExpense

us-gaap:PaymentsForProceedsFromShortTermInvestments

us-gaap:PaymentsToAcquireAvailableForSaleSecurities

us-gaap:PaymentsToAcquireOtherInvestments

us-gaap:PremiumReceivableCreditLossExpenseReversal

us-gaap:ProceedsFromIssuanceOfCommonStock
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:ProceedsFromIssuanceOfDebt

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProceedsFromSaleAndMaturityOfOtherInvestments

us-gaap:ProceedsFromSaleOfAvailableForSaleSecurities
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:LoanToValue
us-gaap:ProvisionForLoanLossesExpensed

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
us-gaap:StatementEquityComponents

us-gaap:SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense
unm:NatureofClaimIncurred
us-gaap:SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment

dei:EntityPublicFloat

srt:LifeInsuranceInForceAssumed

srt:LifeInsuranceInForceCeded

srt:LifeInsuranceInForceGross

srt:LifeInsuranceInForceNet

srt:LifeInsuranceInForcePercentageAssumedToNet

unm:AccidentAndHealthActiveLifeReserves

unm:AssetsParticipationFundAccount

unm:AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsUnrealizedGainPositionGrossGain

unm:AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsUnrealizedLossPositionGrossLoss

unm:AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsUnrealizedGainPositionGrossGain

unm:AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsUnrealizedLossPositionGrossLoss

unm:AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsUnrealizedGainPositionGrossGain

unm:AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsUnrealizedLossPositionGrossLoss

unm:AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostGrossSubtotalNet
unm:DebtSecuritiesAvailableforsaleUnrealizedGainLossFairValue
unm:AvailableForSaleSecuritiesDebtMaturitiesFairValueGrossSubtotal

unm:AvailableForSaleSecuritiesDebtMaturitiesUnrealizedGainPositionGrossGainGrossSubtotal

unm:AvailableForSaleSecuritiesDebtMaturitiesUnrealizedGainPositionGrossLossGrossSubtotal

unm:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearUnrealizedGainPositionGrossGain

unm:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearUnrealizedLossPositionGrossLoss

unm:AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateUnrealizedGainPositionGrossGain

unm:AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateUnrealizedLossPositionGrossLoss
unm:FairValueAssetsAndLiabilitiesComponents, us-gaap:FairValueByFairValueHierarchyLevel
unm:AvailableForSaleSecuritiesPercentOfTotalFairValue
unm:HeirarchyLevelCombination
us-gaap:FairValueByFairValueHierarchyLevel

unm:AvailableForSaleSecuritiesUnrealizedLossPositionGrossLossSubtotal

unm:AvailableforsaleSecuritiesDebtMaturitiesUnrealizedGainPositionGrossGain

unm:CollateralRequirementsMinimumPercentageCollateralToFairValueOfSecuritiesLoanedOrPurchasedUnderRepurchaseAgreements

unm:CommitmentToFundPrivatePlacementFixedMaturitySecurities

unm:CommitmentsToFundCommercialMortgageLoans

unm:CommittmentsToFundCommercialMortgageLoans

unm:DebtSecuritiesAvailableForSaleAmortizedCostMaturityAllocatedAndSingleMaturityDateAfterYear10Net

unm:DebtSecuritiesAvailableForSaleAmortizedCostMaturityAllocatedAndSingleMaturityDateAfterYear5Through10Net

unm:DebtSecuritiesAvailableForSaleAmortizedCostMaturityAllocatedAndSingleMaturityDateAfterYearOneThroughFiveNet

unm:DebtSecuritiesAvailableForSaleAmortizedCostMaturityAllocatedAndSingleMaturityDateYearOneNet

unm:DebtSecuritiesAvailableForSaleAmortizedCostNetOfAllowanceForCreditLosses

unm:DebtSecuritiesAvailableForSaleMaturityWithoutSingleMaturityDateAmortizedCostNet
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument, us-gaap:ValuationTechnique
unm:DebtSecuritiesAvailableforsalePrivate

unm:DeferredTaxLiabilitiesDeferredExpensePrepaidInsurancePremium
us-gaap:RetirementPlanType
unm:DefinedBenefitPlanNetExpectedFutureBenefitPaymentsInFiveFiscalYearsThereafter
us-gaap:RetirementPlanType
unm:DefinedBenefitPlanNetExpectedFutureBenefitPaymentsInOneYear
us-gaap:RetirementPlanType
unm:DefinedBenefitPlanNetExpectedFutureBenefitPaymentsInYearFive
us-gaap:RetirementPlanType
unm:DefinedBenefitPlanNetExpectedFutureBenefitPaymentsInYearFour
us-gaap:RetirementPlanType
unm:DefinedBenefitPlanNetExpectedFutureBenefitPaymentsInYearThree
us-gaap:RetirementPlanType
unm:DefinedBenefitPlanNetExpectedFutureBenefitPaymentsInYearTwo
us-gaap:FairValueByMeasurementFrequency
unm:FinancialInstrumentsFinancialAssetsFairValueDisclosureCarryingValue
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
unm:FinancialInstrumentsFinancialAssetsFairValueDisclosureTotal
us-gaap:FairValueByMeasurementFrequency

unm:FixedMaturitySecuritiesInUnrealizedLossPositionPercentOfTotal
us-gaap:ExternalCreditRatingByGrouping

unm:LifeReservesForFuturePolicyAndContractBenefits
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
unm:MiscellaneousLongTermInvestments
us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency
unm:MiscellaneousLongTermInvestmentsCarryingValue
us-gaap:ExternalCreditRatingByGrouping
unm:NumberOfFixedMaturitySecuritiesInUnrealizedLossPositionContinuouslyForOverOneYear

unm:OutstandingRestrictedStockAndStockSuccessUnitGrantPricesLowerLimit

unm:OutstandingRestrictedStockAndStockSuccessUnitGrantPricesUpperLimit

unm:OutstandingRestrictedStockUnitGrantPricesUpperLimit

unm:PercentageOfLoanPortfolio
us-gaap:InternalCreditAssessment
us-gaap:LoanToValue
us-gaap:MortgageLoansOnRealEstateDescriptionTypeOfProperty
us-gaap:StatementGeographical
us-gaap:Range, us-gaap:AwardType
unm:PercentageofStockbasedAwardsPossibletobeEarned

unm:PolicyAndContractBenefits

unm:PolicyLoansCededtoReinsurers

unm:TaxAttributableToTemporaryItemsIncludedAbove

unm:TaxCutsandJobsActof2017CompleteAccountingUndistributedAccumulatedEarningsofForeignSubsidiaryforwhichUnrecognizedDeferredTaxLiabilitiesHaveNotBeenRecorded
us-gaap:FairValueByMeasurementFrequency
unm:TotalFinancialInstrumentLiabilitiesNotCarriedatFairValue

unm:UnrealizedAdjustmentToReservesForFuturePolicyAndContractBenefits
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:AccountsAndFinancingReceivableAllowanceForCreditLoss

us-gaap:AccountsReceivableNet

us-gaap:AccruedInvestmentIncomeReceivable
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:AccumulatedAmortizationOfOtherDeferredCosts
unm:ComponentOfNetUnrealizedGainOnSecurities
us-gaap:AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax
us-gaap:StatementEquityComponents
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax
us-gaap:RetirementPlanType
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:AdvancesFairValueDisclosure
us-gaap:FairValueByMeasurementFrequency

us-gaap:AllowanceForLoanAndLeaseLossesRealEstate
unm:PrivateEquityFundType, unm:RedemptionTerm, us-gaap:FinancialInstrument
us-gaap:AlternativeInvestment
unm:PrivateEquityFundType, us-gaap:FinancialInstrument
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
us-gaap:FinancialInstrument

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

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
us-gaap:ExternalCreditRatingByGrouping
us-gaap:FinancialInstrument

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
us-gaap:ExternalCreditRatingByGrouping
us-gaap:FinancialInstrument

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
us-gaap:ConsolidatedEntities
us-gaap:FinancialInstrument
us-gaap:FinancialInstrument
us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss
us-gaap:FinancialInstrument
us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
us-gaap:FinancialInstrument
us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue
us-gaap:FinancialInstrument
us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue
unm:DebtSecuritiesAvailableforsaleUnrealizedGainLossFairValue
us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue
unm:DebtSecuritiesAvailableforsaleUnrealizedGainLossFairValue
us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue
unm:DebtSecuritiesAvailableforsaleUnrealizedGainLossFairValue
us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue
unm:DebtSecuritiesAvailableforsaleUnrealizedGainLossFairValue
us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue
unm:DebtSecuritiesAvailableforsaleUnrealizedGainLossFairValue
us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue

us-gaap:AvailableForSaleSecuritiesDebtSecurities
us-gaap:ExternalCreditRatingByGrouping
us-gaap:AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions1
dei:LegalEntity
us-gaap:CashAndSecuritiesSegregatedUnderFederalAndOtherRegulations
us-gaap:BalanceSheetLocation
us-gaap:CashCollateralForBorrowedSecurities

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

us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities
us-gaap:DebtLongtermAndShorttermCombinedAmount

us-gaap:DebtSecuritiesAvailableForSaleAllowanceForCreditLoss
us-gaap:FinancialInstrument
us-gaap:Range, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument, us-gaap:MeasurementInputType, us-gaap:ValuationTechnique
us-gaap:DebtSecuritiesAvailableForSaleMeasurementInput
us-gaap:ConsolidatedEntities
us-gaap:DeferredIncomeTaxAssetsNet

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredPolicyAcquisitionCosts
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:DeferredRevenueAndCredits

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions
us-gaap:RetirementPlanType

us-gaap:DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross

us-gaap:DeferredTaxLiabilitiesDeferredExpenseDeferredPolicyAcquisitionCost

us-gaap:DeferredTaxLiabilitiesInvestments

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanBenefitObligation
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanFundedStatusOfPlan
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation
us-gaap:DefinedBenefitPlanByPlanAssetCategories, us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanPlanAssetsTargetAllocationPercentage
unm:SignificantTransaction
us-gaap:DepositContractsAssets

us-gaap:DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowed

us-gaap:DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedAmountOffsetAgainstCollateral

us-gaap:DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedCollateralObligationToReturnCash

us-gaap:DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedCollateralObligationToReturnSecurities

us-gaap:DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedGross

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

us-gaap:DerivativeCollateralObligationToReturnCash
us-gaap:FinancialInstrument

us-gaap:DerivativeCollateralObligationToReturnSecurities
us-gaap:FinancialInstrument
us-gaap:TransactionType
us-gaap:DerivativeCollateralRightToReclaimSecurities

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

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

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

us-gaap:DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoaned

us-gaap:DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAmountOffsetAgainstCollateral

us-gaap:DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedCollateralRightToReclaimSecurities

us-gaap:DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedGross

us-gaap:DerivativeNetLiabilityPositionAggregateFairValue

us-gaap:DerivativeNotionalAmount
unm:EquityDerivativeContractType, us-gaap:DerivativeInstrumentRisk
unm:InterestRateDerivativesContractType, us-gaap:DerivativeInstrumentRisk
unm:InterestRateDerivativesContractType, us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation
unm:InterestRateDerivativesContractType, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:CreditDerivativesByContractType, us-gaap:DerivativeInstrumentRisk
us-gaap:CreditDerivativesByContractType, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByLiabilityClass, us-gaap:ValuationTechnique
us-gaap:EmbeddedDerivativeFairValueOfEmbeddedDerivativeLiability
us-gaap:Range, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByLiabilityClass, us-gaap:MeasurementInputType, us-gaap:ValuationTechnique
us-gaap:EmbeddedDerivativeLiabilityMeasurementInput
us-gaap:AwardType
us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
unm:CreditExposure
us-gaap:FairValueConcentrationOfRiskDerivativeFinancialInstrumentsAssets
unm:PrivateEquityFundType, unm:RedemptionTerm, us-gaap:FinancialInstrument
us-gaap:FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnfundedCommittments
unm:PrivateEquityFundType, us-gaap:FinancialInstrument
us-gaap:FinancialInstrument
us-gaap:FairValueByAssetClass
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
us-gaap:DerivativeInstrumentRisk
us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs
us-gaap:FairValueByMeasurementFrequency
us-gaap:FederalHomeLoanBankAdvances

us-gaap:FederalHomeLoanBankAdvancesBranchOfFHLBBankAmountOfAdvancesByBranch

us-gaap:FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged1
us-gaap:FinancialInstrument
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FederalHomeLoanBankBorrowingsFairValueDisclosure
us-gaap:FairValueByMeasurementFrequency

us-gaap:FederalHomeLoanBankStock

us-gaap:FinancingReceivableAllowanceForCreditLosses
unm:FinancingReceivableOriginationPeriod, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:LoanToValue
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:LoanToValue
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:LoanToValue
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableOriginatedInCurrentFiscalYear
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:LoanToValue
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:LoanToValue
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:LoanToValue
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:LoanToValue
unm:InterestRateDerivativesContractType, us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation
us-gaap:HedgedAssetFairValueHedge
unm:InterestRateDerivativesContractType, us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation
us-gaap:HedgedAssetFairValueHedgeCumulativeIncreaseDecrease

us-gaap:IncomeTaxReceivable

us-gaap:Investments

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

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

us-gaap:LiabilityForClaimsAndClaimsAdjustmentExpense

us-gaap:LiabilityForFuturePolicyBenefits

us-gaap:LiabilityForFuturePolicyBenefitsAndUnpaidClaimsAndClaimsAdjustmentExpense

us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:RetirementPlanType
us-gaap:LifeSettlementContractsFairValueMethodFaceValue
us-gaap:RetirementPlanType

us-gaap:LoansInsurancePolicy
us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:LoansReceivableFairValueDisclosure
us-gaap:FairValueByMeasurementFrequency

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive
us-gaap:ConsolidatedEntities

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
us-gaap:ConsolidatedEntities

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive
us-gaap:ConsolidatedEntities

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
us-gaap:ConsolidatedEntities

us-gaap:MortgageLoansOnRealEstateCommercialAndConsumerNet
unm:FinancingReceivableOriginationPeriod
us-gaap:FairValueByMeasurementFrequency
us-gaap:InternalCreditAssessment
us-gaap:LoanToValue
us-gaap:MortgageLoansOnRealEstateDescriptionTypeOfProperty
us-gaap:StatementGeographical
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:MortgagesHeldForSaleFairValueDisclosure
us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:NotesPayableFairValueDisclosure
us-gaap:FairValueByMeasurementFrequency
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:NotesReceivableGross
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:LoanToValue

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent
unm:TaxReturnType, us-gaap:IncomeTaxAuthority
us-gaap:OperatingLossCarryforwards
us-gaap:IncomeTaxAuthority

us-gaap:OtherLiabilities
us-gaap:ConsolidatedEntities

us-gaap:OtherLongTermInvestments
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:FinancialInstrument
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency
us-gaap:FinancialInstrument, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:OtherPolicyholderFunds

us-gaap:OtherShortTermInvestments
us-gaap:ConsolidatedEntities
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities
us-gaap:RetirementPlanType
us-gaap:ConsolidatedEntities
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent

us-gaap:PremiumsAndOtherReceivablesNet

us-gaap:PremiumsReceivableAllowanceForDoubtfulAccounts

us-gaap:PremiumsReceivableGross

us-gaap:PrepaidReinsurancePremiums
unm:SignificantTransaction
us-gaap:RetirementPlanType
us-gaap:PrescriptionDrugSubsidyReceiptsAfterYearFive
us-gaap:RetirementPlanType
us-gaap:PrescriptionDrugSubsidyReceiptsNextTwelveMonths
us-gaap:RetirementPlanType
us-gaap:PrescriptionDrugSubsidyReceiptsYearFive1
us-gaap:RetirementPlanType
us-gaap:PrescriptionDrugSubsidyReceiptsYearFour1
us-gaap:RetirementPlanType
us-gaap:PrescriptionDrugSubsidyReceiptsYearThree1
us-gaap:RetirementPlanType
us-gaap:PrescriptionDrugSubsidyReceiptsYearTwo1

us-gaap:QualifiedAffordableHousingProjectInvestmentsCommitment
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency

us-gaap:RealEstateInvestmentPropertyAccumulatedDepreciation

us-gaap:RealEstateInvestmentPropertyNet

us-gaap:ReinsuranceReceivablesIncurredButNotReportedClaims

us-gaap:ReinsuranceRecoverables

us-gaap:ReinsuranceRecoverablesAllowance

us-gaap:SalesTypeAndDirectFinancingLeasesLeaseReceivableUndiscountedExcessAmount

us-gaap:SecuritiesBorrowed

us-gaap:SecuritiesBorrowedCollateralObligationToReturnCash

us-gaap:SecuritiesBorrowedCollateralObligationToReturnSecurities

us-gaap:SecuritiesBorrowedGross

us-gaap:SecuritiesLoaned
us-gaap:AssetsSoldUnderAgreementsToRepurchase
us-gaap:SecuritiesLoanedAndSecuritiesSoldUnderAgreementToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement
us-gaap:AssetsSoldUnderAgreementsToRepurchaseMaturityPeriods

us-gaap:SecuritiesLoanedCollateralRightToReclaimSecurities

us-gaap:SecuritiesLoanedGross
us-gaap:AssetsSoldUnderAgreementsToRepurchase
us-gaap:SecuritiesLoanedIncludingNotSubjectToMasterNettingArrangementAndAssetsOtherThanSecuritiesTransferred
us-gaap:AssetsSoldUnderAgreementsToRepurchase, us-gaap:FinancialInstrument
us-gaap:AssetsSoldUnderAgreementsToRepurchaseMaturityPeriods
us-gaap:AssetsSoldUnderAgreementsToRepurchaseMaturityPeriods, us-gaap:FinancialInstrument
us-gaap:BalanceSheetLocation
us-gaap:SecuritiesReceivedAsCollateral
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber
dei:LegalEntity
us-gaap:StatutoryAccountingPracticesStatutoryAmountAvailableForDividendPayments
dei:LegalEntity
us-gaap:StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalance
us-gaap:ShareRepurchaseProgram
us-gaap:StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1

us-gaap:SummaryOfInvestmentsOtherThanInvestmentsInRelatedPartiesCarryingAmount
us-gaap:InvestmentType

us-gaap:SummaryOfInvestmentsOtherThanInvestmentsInRelatedPartiesCost
us-gaap:InvestmentType
us-gaap:InvestmentType
us-gaap:SummaryOfInvestmentsOtherThanInvestmentsInRelatedPartiesFairValue

us-gaap:SupplementaryInsuranceInformationDeferredPolicyAcquisitionCosts
us-gaap:StatementBusinessSegments

us-gaap:SupplementaryInsuranceInformationLiabilityForFuturePolicyBenefitsLossesClaimsAndLossExpenseReserves
us-gaap:StatementBusinessSegments

us-gaap:SupplementaryInsuranceInformationOtherPolicyClaimsAndBenefitsPayable
us-gaap:StatementBusinessSegments

us-gaap:SupplementaryInsuranceInformationUnearnedPremiums
us-gaap:StatementBusinessSegments

us-gaap:TaxesPayableCurrentAndNoncurrent

us-gaap:UnearnedPremiums

us-gaap:UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
us-gaap:ValuationAllowancesAndReservesType
us-gaap:ValuationAllowancesAndReservesBalance

us-gaap:ValueOfBusinessAcquiredVOBA

Plots across concepts


IncomeStatement
Net Income Loss
Balance Sheet
Operating Lease Right Of Use Asset
Assets
Derivative Assets
Current Assets
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
NonCurrent Assets
Operating Lease Right Of Use Asset
PropertyPlantAndEquipmentNet
Property Plant And Equipment Net
Liabilities
Derivative Liabilities
Noncurrent Liabilities
Deferred Income Tax Liabilities Net
Stockholders Equity
Common Stock Value
CashFlow
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInOperatingActivities
Net Income Loss
NetCashProvidedByUsedInInvestingActivities
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInFinancingActivities
Net Cash Provided By Used In Financing Activities
Shares
Weighted Average Number Of Shares Outstanding Basic
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Due Year Four

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:CommonStockValue ▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁████▇▇▇▇▇▇▇▇▇▇▇█30.730.730.730.730.630.630.630.630.630.530.530.530.530.530.530.430.430.430.430.330.330.330.330.230.230.230.236.136.136.136.136.036.036.036.036.036.035.935.935.835.835.836.5NANANA36.4NANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding █▁205.2738204.7373NA203.8791203.6711203.3557NA208.116211.1126214.4297NA218.8928221.0627222.577NA226.0298228.1787230.3788NA234.2135237.3188239.9304NA246.3244249.1922252.2349NA254.7955257.9097260.7099NA264.26266.7363270.3544NA278.511283.7406291.284NA299.1729307.411314.3323NA324.467332.632333.5247NANANANA
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic █▁204.5045204.1333NA203.7613203.6243203.306NA208.0978211.0687214.2971NA218.8928220.7767221.894NA225.2881227.4544229.4296NA233.752236.8928239.6194NA245.4248.3186251.4674NA253.5861256.7902259.4085NA262.9459265.5604269.3611NA278.3544283.3166290.4295NA298.1858306.3162312.7423NA323.0835331.2368332.2702NANANANA
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount ▁█0.31.6NA2.01.81.1NA1.21.21.3NA1.00.7NANA0.40.40.4NA0.50.50.5NA0.1NA0.9NA0.0NANANA0.00.00.4NA2.82.32.2NA2.41.91.9NA3.63.43.7NANANANA
us-gaap:EarningsPerShareBasic ▇▆▆▇█▆█▇██▇▁█▇▇▇▇▇▇▇▇▇▇▇▇▇▂▇▇▇▇▆▆▆▇▇▆▆▁▆▆▆▆▆▆▆▆▆▆▆0.890.750.661.131.30.791.441.161.331.311.15-1.31.291.231.191.121.081.01.071.011.00.880.930.830.90.85-1.110.870.940.880.850.780.820.790.860.830.760.74-1.450.690.750.720.710.680.630.690.60.670.810.5
us-gaap:EarningsPerShareDiluted ▇▆▆▇█▆█▇██▇▁█▇▇▇▇▇▇▇▇▇▇▇▇▇▂▇▇▇▇▆▆▆▇▇▆▆▁▆▆▆▆▆▆▆▆▆▆▆0.890.750.661.131.30.791.441.161.331.311.15-1.31.291.231.191.121.071.01.071.011.00.880.930.830.90.84-1.110.870.940.880.840.780.820.790.850.830.760.73-1.450.690.750.720.710.680.630.690.60.660.80.5
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
 EBT Margin us-gaap:ConsolidationItems us-gaap:OperatingSegments▃▃█▃▃▂▃▃▃▃▂▃▂▂▂▂▂▂▂▂▂▂▂▁▂▁▁▁▁▁▁▁2993.03072.04273.52996.33021.22871.13034.62960.03016.72987.62880.82927.82890.32899.62839.22819.12822.02806.52796.52763.32761.32725.42722.42657.82703.72647.42635.72609.42656.82614.42586.22540.9NANANANANANANANANANANANANANANANANANA
 Operating Margin us-gaap:ConsolidationItems us-gaap:OperatingSegments▃▃█▃▃▂▃▃▃▃▂▃▂▂▂▂▂▂▂▂▂▂▂▁▂▁▁▁▁▁▁▁2993.03072.04273.52996.33021.22871.13034.62960.03016.72987.62880.82927.82890.32899.62839.22819.12822.02806.52796.52763.32761.32725.42722.42657.82703.72647.42635.72609.42656.82614.42586.22540.9NANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:BenefitsLossesAndExpenses ▃▃█▃▃▃▃▃▃▃▂▅▂▂▂▂▂▂▂▂▂▂▂▂▂▂▄▁▁▁▁▁▁▁▁▁▁▁▅▁▁▁▁▁▁▁2730.42873.24148.82696.72683.62669.02657.22660.62664.72634.32571.13305.62535.52558.52493.92452.32460.42476.22425.32431.22421.12421.22405.82358.92383.92344.43093.62297.32307.02284.62280.42256.82290.42321.02335.52307.62321.52301.33309.12252.32226.52232.92257.62201.42202.52200.4NANANANA
us-gaap:ComprehensiveIncomeNetOfTax ▆▄▅▆█▄▇▆▇▇▆▁▅▅▆▆▆▆▄▆▆▆▆▆▅▆▂▅▆▆▅▆▄▅▅▆▆▆▁▇▆▆▅▆▆▆429.9-246.132.0381.5809.8-93.4486.7331.3541.0592.8303.4-877.091.781.1270.1271.7349.6281.3-253.7346.9375.9395.2220.2222.4-32.7306.9-661.3137.8420.0428.366.6398.6-50.470.371.6420.0361.5207.5-862.7655.8268.7280.673.9276.7244.7291.7NANANANA
us-gaap:DeferredPolicyAcquisitionCostAmortizationExpense ▅▇▅▆▅█▅▆▆█▅▅▅▆▄▄▅▅▃▃▄▅▃▃▄▅▃▃▃▃▂▂▂▄▁▁▂▂▅▄▅▅▅▄▅▅136.0166.4139.5149.7140.7176.2141.4146.3151.6170.6136.9136.9140.2151.5123.6123.7138.3141.5115.8118.8126.2132.2106.9117.0124.1134.3107.9107.9106.4118.695.298.6101.3123.893.187.099.299.4133.4125.2136.9138.3139.4130.6135.9141.2NANANANA
us-gaap:GainLossOnInvestments ▂▂█▂▂▁▂▂▂▂▁▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂0.984.61304.94.433.8-144.09.2-26.2-7.31.1-41.46.7-2.6-2.211.49.88.111.028.411.05.3-20.5-2.7-26.60.8-15.3-17.31.225.96.39.3-26.113.310.324.621.3-2.112.47.4-23.9-3.615.227.51.1-29.525.6NANANANA
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments ▇▇▆▇█▇█▇██▇▃█████▇███▇▇▇▇▇▃▇█▇▇▇▇▇▇▇▇▇▁▇█▇█▇▇█▇██▇262.6198.8124.7299.6337.6202.1377.4299.4352.0353.3309.7-377.8354.8341.1345.3366.8361.6330.3371.2332.1340.2304.2316.6298.9319.8303.0-457.9312.1346.5326.5305.8284.1311.5303.8322.7320.4296.4310.0-704.3293.3338.0330.2335.5326.5308.1361.2295.9334.6411.2250.6
us-gaap:IncomeTaxExpenseBenefit ▇▇▆▇▇▆▇▇▇▇▇▄▇▇▇██▇█▇█▇▇▇▇▇▃▇█▇▇▇▇▇▇▇▇▇▁▇████▇█79.745.8-10.768.572.141.181.257.470.872.460.6-93.169.367.678.4114.5116.5100.4123.296.1103.493.690.595.195.590.1-178.891.0104.097.684.678.492.991.288.890.280.096.1-278.987.7108.2104.8109.7105.798.4131.4NANANANA
us-gaap:InterestAndDebtExpense ▅▅▅▇▆▅▆▆▄▄▄▄▄▃▃▃▃▃▃▅▄▃▃▃▃▃▃▃█▃▃▂▂▂▃▂▂▂▂▂▂▃▃▂▁▁45.344.445.649.447.545.746.646.142.642.142.042.742.440.240.140.139.939.839.845.242.438.638.938.138.037.838.538.452.737.937.637.437.337.138.136.635.235.535.235.135.137.939.135.234.133.4NANANANA
us-gaap:NetIncomeLoss ▇▇▆▇█▇█▇███▂█████▇█▇▇▇▇▇▇▇▂▇▇▇▇▇▇▇▇▇▇▇▁▇▇▇▇▇▇▇▇▇█▇182.9153.0135.4231.1265.5161.0296.2242.0281.2280.9249.1-284.7285.5273.5266.9252.3245.1229.9248.0236.0236.8210.6226.1203.8224.3212.9-279.1221.1242.5228.9221.2205.7218.6212.6233.9230.2216.4213.9-425.4205.6229.8225.4225.8220.8209.7229.8199.4221.1267.2164.9
us-gaap:NetInvestmentIncome ▂▁▄▆▃▄▆▅▇▄▅▆▇▅▆▅▆▅▆▆▇▅█▆▇▅▇▅▇▆▇▆▇▆█▆▇▆▇▇█▆▇▆▇▆▄▃▅▃563.5548.7593.5613.2569.0585.0616.3599.4624.9594.7608.6619.2623.6602.3619.8609.0620.5602.4617.9611.4623.3606.4636.4612.1630.7602.0629.4606.4629.1612.5629.4615.5626.1621.1643.0619.2633.5619.5634.6629.2637.1618.7634.3618.4629.8613.0595.7579.6597.6573.7
 us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems us-gaap:OperatingSegments▇▁▃▄▄▆█▆▇▇▆█▇▆█▇▇▆▆▅▆▅▄▅▄▄▅▄▆▅▄▄362.6273.5296.9318.5316.5346.1370.3350.8359.3352.2351.1366.3357.4343.3372.9357.0353.5339.9346.9325.2338.9328.8322.3328.5321.9321.3323.4312.3338.5324.9309.4312.9NANANANANANANANANANANANANANANANANANA
 us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,unm:ClosedBlock█▇▇▅▂▁▃▁▂▁▂▂▁▁▂▁▂▁▂▁▂▂▁▁▂▁▁▁▂▁▁▁111.297.0104.270.836.729.746.126.933.731.034.832.229.628.933.126.632.631.634.628.632.633.728.127.736.626.730.026.236.628.326.825.7NANANANANANANANANANANANANANANANANANA
 us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,unm:ColonialLife█▂▂▇▇▄▆▆▅▅▅▅▅▄▄▄▄▅▄▄▃▃▃▃▃▃▂▂▃▄▁▁95.873.371.292.290.981.187.787.284.485.285.484.284.681.079.181.781.882.479.979.077.977.477.676.377.677.674.371.274.979.169.469.0NANANANANANANANANANANANANANANANANANA
 us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,unm:UnumInternational▅▆▄▄▁▃▅▅█▇█▆▇█24.826.420.721.415.119.423.924.230.729.130.426.127.629.8NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,unm:UnumUs▄▁▂▄▆███▇▇▇█▇▇█▇▇▇▇▆▆▆▅▆▅▅▅▅▆▅▆▆179.3115.7143.5188.2231.9261.8263.1261.4254.3252.3248.7270.9251.1243.9264.2258.4247.8239.1240.1231.0227.2215.9214.2218.7202.8214.3212.4214.3215.8207.5217.1219.8NANANANANANANANANANANANANANANANANANA
us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax ▅▅▇▆▅▂█▃▄▆▄▄▂▇▅▆▇▆▂▄▁▄▃▃█▂▃▂▆▅▆█▅▁▅▆▄▆9.37.352.434.5-3.0-63.663.6-37.6-19.717.3-21.2-15.2-61.847.510.831.839.817.1-48.8-25.8-79.4-26.4-27.0-44.164.9-54.0-43.9-60.230.27.626.368.20.9-69.96.029.4-18.628.2NANANANANANANANANANANANA
us-gaap:OtherComprehensiveIncomeLossNetOfTax ▆▂▄▆█▃▆▅▆▇▅▁▃▃▅▅▅▅▂▅▆▆▅▅▃▅▂▄▆▆▄▆▃▄▄▆▆▅247.0-399.1-103.4150.4544.3-254.4190.589.3259.8311.954.3-592.3-193.8-192.43.219.4104.551.4-501.7110.9139.1184.6-5.918.6-257.094.0-382.2-83.3177.5199.4-154.6192.9-269.0-142.3-162.3189.8145.1-6.4NANANANANANANANANANANANA
us-gaap:OtherIncome ▃▄▃▅▂▄▃▃▃▃▂▂▁▂▂▁▂▂▂▂▂▂▂▂▃▃▃▃▃▃▄▃▄▅▃▄▄▄█▄▃▄▅▄▄▄54.260.455.260.649.758.756.555.656.053.150.350.148.349.549.646.751.250.251.051.551.152.050.951.554.754.455.754.654.953.856.854.256.762.553.458.158.957.574.359.156.059.763.158.260.559.8NANANANA
us-gaap:PolicyholderBenefitsAndClaimsIncurredNet ▂▃█▂▂▂▂▂▂▂▂▅▂▂▂▂▂▂▂▂▂▂▂▁▂▁▄▁▁▁▁▁▁▁▁▁▁▁▄▁▁▁▁▁▁▁1854.12051.23346.71888.61882.81854.81881.31871.51902.61840.81829.52578.91804.11807.91789.11765.61752.01749.01735.91742.61733.51729.81735.21690.91702.81653.92372.51653.61653.41631.31643.81641.61661.81648.51689.21686.91683.21662.92381.51635.61599.41593.01618.11587.51579.61568.9NANANANA
us-gaap:PremiumsEarnedNet ██▇▇███▇█▇▆▆▆▆▅▅▅▅▄▄▄▄▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁2374.42378.32319.92318.12368.72371.42352.62331.22343.12338.72263.32251.82221.02250.02158.42153.62142.22142.92099.22089.42081.62087.52037.82020.82017.52006.31967.91947.21943.61938.51890.71897.31905.81930.91937.21929.41927.61921.91888.51881.21875.01869.51868.21850.21849.81863.21865.71861.11875.91872.8
us-gaap:Revenues ▃▃█▃▃▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▂▂▂▂▂▂▂▁▁▁▂▁▁▁▁▁▂▁2993.03072.04273.52996.33021.22871.13034.62960.03016.72987.62880.82927.82890.32899.62839.22819.12822.02806.52796.52763.32761.32725.42722.42657.82703.72647.42635.72609.42653.52611.12586.22540.92601.92624.82658.22628.02617.92611.32604.82545.62564.52563.12593.12527.92510.62561.62496.62517.52628.02448.9
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:Assets █▇█▇▇▅▆▆▅▄▃▄▄▄▅▄▄▄▃▄▄▃▃▃▃▄▄▃▄▃▂▂▂▃▄▄▃▂▃▂▁▁▁70807.969256.670625.869616.069305.265335.967013.466955.765843.763921.761875.662249.862366.663012.364013.163805.763381.662524.761941.563905.163853.161967.960589.761503.861706.863014.562497.161960.662218.161078.659403.659585.859366.261611.462236.162119.660678.759571.860179.060040.958015.857116.857307.7NANANA54477.0NANANA
us-gaap:Liabilities █▇█▇▇▅▆▆▆▅▄▄▄▄▅▅▅▄▄▅▅▄▃▄▄▅▄▄▄▃▃▃▃▄▄▄▃▃▃▂▁▁▁59860.458686.559754.858723.858743.855532.857048.457324.156390.654861.253253.853731.652920.253512.854438.254357.154065.053417.352973.554543.954696.153047.651925.852922.753191.154326.653944.752716.652974.452122.950744.550915.950985.653053.653623.553446.352292.851391.951602.050580.848933.048133.048363.3NANANA45976.9NANANA
us-gaap:LiabilitiesAndStockholdersEquity █▇█▇▇▅▆▆▅▄▃▄▄▄▅▄▄▄▃▄▄▃▃▃▃▄▄▃▄▃▂▂▂▃▄▄▃▂▃▂▁▁▁70807.969256.670625.869616.069305.265335.967013.466955.765843.763921.761875.662249.862366.663012.364013.163805.763381.662524.761941.563905.163853.161967.960589.761503.861706.863014.562497.161960.662218.161078.659403.659585.859366.261611.462236.162119.660678.759571.860179.060040.958015.857116.857307.7NANANA54477.0NANANA
us-gaap:StockholdersEquity █▇██▇▅▆▅▄▃▂▂▄▄▅▄▄▃▃▄▃▃▂▂▂▂▂▄▄▃▂▂▂▂▂▂▂▁▂▄▃▃▃▃▃▃▂10947.510570.110871.010892.210561.49803.19965.09631.69453.19060.58621.88518.29446.49499.59574.99448.69316.69107.48968.09361.29157.08920.38663.98581.18515.78687.98552.49244.09243.78955.78659.18669.98380.68557.88612.68673.38385.98179.98577.09460.19082.88983.88944.48924.18871.78780.28500.1NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:Cash ▂█▃▂▃▅▂▂▁▁▂▃▂▅▂▁▂▂▂▂▂▂▂▂▂▂▂▁▂▂▂▁▁▂▂▁▁▂▂▁▁▁▁▂▂▁▁123.1561.8197.0103.8165.6337.284.177.060.862.194.0214.299.5308.977.470.1117.0107.0100.487.993.8120.7112.9109.3122.684.1102.560.6112.076.294.163.047.8102.077.353.638.0102.5116.652.271.256.653.678.681.351.771.6NANANA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents 123.1NA197.0103.8165.6NA84.177.0NANA94.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment NANA1239.9NANANA1195.3NANANA1151.8NANANA1067.7NANANA989.4NANANA902.6NANANA823.3NANANA760.8NANANA705.0NANANA670.9NANANA641.6NANANA619.7NANANA
us-gaap:PropertyPlantAndEquipmentNet ▃▃▃▃▄▆▅█▇▆▆▄▄▃▃▂▃▃▃▄▄▄▅▅▆▆▅▅▅▄▄▃▃▃▃▃▂▃▂▂▂▁▁499.8500.6498.0508.8518.1540.7534.1568.3556.1548.2546.9521.0510.8508.4504.8489.9497.1501.2500.6509.7510.9515.2523.9529.6535.7537.5531.7531.4528.3519.4511.9508.8504.7499.0501.6497.7492.2497.4493.3492.1487.2482.7476.8NANANA443.5NANANA
 us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures us-gaap:ConsolidatedEntities srt:ParentCompanyNANA14122.6NANANA12820.9NANANA11383.6NANANA12157.1NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:Goodwill ██████████████▇▇▇▇▇▇▂▂▂▃▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁353.3353.0353.0350.6348.9348.8351.7348.6350.1351.0350.3346.0346.5348.9338.6338.2337.1335.7335.1336.8226.7229.8230.9232.1198.8198.2198.7200.7201.3201.0200.9201.7201.0200.9201.7201.6201.3201.5201.2201.2201.6201.5201.2NANANA201.6NANANA
us-gaap:OperatingLeaseRightOfUseAsset NANA82.9NANANA108.6NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:EquitySecuritiesFvNi █▇▆▄▅▁█33.331.528.324.124.814.932.6NANANA29.2NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
 us-gaap:LongTermDebtCurrent us-gaap:ConsolidatedEntities,us-gaap:DebtInstrument,us-gaap:LongtermDebtType srt:ParentCompany,unm:NotesIssuedin2010,us-gaap:SeniorNotesNANA400.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:LongTermDebt NANA3345.7NANANA3326.6NANANA2971.3NANANA2938.3NANANA2999.4NANANA2827.5NANANA2780.6NANANA2612.0NANANA2755.4NANANA2570.2NANANA2631.3NANANANANANANA
us-gaap:LongTermDebtNoncurrent NANA3345.7NANANA2926.9NANANA2971.3NANANA2738.4NANANA2999.4NANANA2475.1NANANA2628.7NANANA2612.0NANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebtNoncurrent us-gaap:ConsolidatedEntities srt:ParentCompanyNANA3345.7NANANA2846.9NANANA2831.3NANANA2538.4NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebtNoncurrent us-gaap:ConsolidatedEntities,us-gaap:DebtInstrument,us-gaap:LongtermDebtType srt:ParentCompany,unm:NotesIssued1990to1996,us-gaap:MediumTermNotesNANA20.5NANANA20.5NANANA50.8NANANA50.8NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebtNoncurrent us-gaap:ConsolidatedEntities,us-gaap:DebtInstrument,us-gaap:LongtermDebtType srt:ParentCompany,unm:NotesIssuedIn2019,us-gaap:SeniorNotesNANA400.0NANANA400.0NANANA0.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebtNoncurrent us-gaap:ConsolidatedEntities,us-gaap:DebtInstrument,us-gaap:LongtermDebtType srt:ParentCompany,unm:NotesIssuedIn2019Due2049,us-gaap:SeniorNotesNANA450.0NANANA450.0NANANA0.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebtNoncurrent us-gaap:ConsolidatedEntities,us-gaap:DebtInstrument,us-gaap:LongtermDebtType srt:ParentCompany,unm:NotesIssuedIn2020Due2025,us-gaap:SeniorNotesNANA500.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebtNoncurrent us-gaap:ConsolidatedEntities,us-gaap:DebtInstrument,us-gaap:LongtermDebtType srt:ParentCompany,unm:NotesIssuedin1998with2028MaturityDate,us-gaap:SeniorNotesNANA335.8NANANA335.8NANANA365.8NANANA365.8NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebtNoncurrent us-gaap:ConsolidatedEntities,us-gaap:DebtInstrument,us-gaap:LongtermDebtType srt:ParentCompany,unm:NotesIssuedin1998with2038MaturityDate,us-gaap:JuniorSubordinatedDebtNANA203.7NANANA203.7NANANA226.5NANANA226.5NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebtNoncurrent us-gaap:ConsolidatedEntities,us-gaap:DebtInstrument,us-gaap:LongtermDebtType srt:ParentCompany,unm:NotesIssuedin2018witha2058MaturityDate,us-gaap:JuniorSubordinatedDebtNANA300.0NANANA300.0NANANA300.0NANANA0.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebtNoncurrent us-gaap:DebtInstrument,us-gaap:LongtermDebtType unm:NotesIssued1990to1996,us-gaap:MediumTermNotesNANA20.5NANANA20.5NANANA50.8NANANA50.8NANANA50.8NANANA50.8NANANA50.8NANANA50.8NANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebtNoncurrent us-gaap:DebtInstrument,us-gaap:LongtermDebtType unm:NotesIssuedIn2019,us-gaap:SeniorNotesNANA400.0NANANA400.0NANANA0.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebtNoncurrent us-gaap:DebtInstrument,us-gaap:LongtermDebtType unm:NotesIssuedIn2019Due2049,us-gaap:SeniorNotesNANA450.0NANANA450.0NANANA0.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebtNoncurrent us-gaap:DebtInstrument,us-gaap:LongtermDebtType unm:NotesIssuedIn2020Due2025,us-gaap:SeniorNotesNANA500.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebtNoncurrent us-gaap:DebtInstrument,us-gaap:LongtermDebtType unm:NotesIssuedin1998with2028MaturityDate,us-gaap:SeniorNotesNANA335.8NANANA335.8NANANA365.8NANANA365.8NANANA365.8NANANA365.8NANANA365.8NANANA365.8NANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebtNoncurrent us-gaap:DebtInstrument,us-gaap:LongtermDebtType unm:NotesIssuedin1998with2038MaturityDate,us-gaap:JuniorSubordinatedDebtNANA203.7NANANA203.7NANANA226.5NANANA226.5NANANA226.5NANANA226.5NANANA226.5NANANA226.5NANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebtNoncurrent us-gaap:DebtInstrument,us-gaap:LongtermDebtType unm:NotesIssuedin2014,us-gaap:SeniorNotesNANA350.0NANANA350.0NANANA350.0NANANA350.0NANANA350.0NANANA349.5NANANA349.5NANANA0.0NANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebtNoncurrent us-gaap:DebtInstrument,us-gaap:LongtermDebtType unm:NotesIssuedin2015,us-gaap:SeniorNotesNANA275.0NANANA275.0NANANA275.0NANANA275.0NANANA275.0NANANA273.2NANANA0.0NANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebtNoncurrent us-gaap:DebtInstrument,us-gaap:LongtermDebtType unm:NotesIssuedin2018witha2058MaturityDate,us-gaap:JuniorSubordinatedDebtNANA300.0NANANA300.0NANANA300.0NANANA0.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebtNoncurrent us-gaap:DebtInstrument,us-gaap:LongtermDebtType unm:NotesPayabledue2042,us-gaap:SeniorNotesNANA500.0NANANA500.0NANANA500.0NANANA500.0NANANA500.0NANANA250.0NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:DeferredFinanceCostsNoncurrentNet NANA34.8NANANA35.4NANANA30.8NANANA24.4NANANA28.4NANANA25.7NANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:DeferredFinanceCostsNoncurrentNet us-gaap:ConsolidatedEntities srt:ParentCompanyNANA34.8NANANA35.4NANANA30.8NANANA24.4NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LongTermDebtAndCapitalLeaseObligations █▇▇██▅▅▆▇▅▅▅▅▄▄▄▅▅▅▆▆▂▂▁▃▃▃▄▄▅▃▃▃▄▄▄▃▃▃▃▃▃▃3441.43346.83345.73378.63393.12914.32926.93037.63341.22958.72971.32983.52997.72721.92738.42754.12968.42984.62999.43019.83042.62442.52475.12217.12580.82603.32628.72783.32792.02948.22612.02631.32644.02673.92755.42781.52540.32552.82570.22586.52589.12605.02631.3NANANA2549.6NANANA
us-gaap:DeferredIncomeTaxLiabilitiesNet █▆█▄▂▁▁405.4319.2416.1210.5155.693.795.4NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent us-gaap:RetirementPlanSponsorLocation,us-gaap:RetirementPlanType country:GB,us-gaap:PensionPlansDefinedBenefitNANA5.9NANANA4.1NANANA0.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent us-gaap:RetirementPlanSponsorLocation,us-gaap:RetirementPlanType country:US,us-gaap:PensionPlansDefinedBenefitNANA558.3NANANA499.2NANANA471.1NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent us-gaap:RetirementPlanType us-gaap:OtherPostretirementBenefitPlansDefinedBenefitNANA109.7NANANA115.8NANANA114.2NANANA127.8NANANA134.8NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo NANA22.8NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree NANA16.5NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour NANA12.7NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA9.8NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANA34.4NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:StockholdersEquity █▇██▇▅▆▅▄▃▂▂▄▄▅▄▄▃▃▄▃▃▂▂▂▂▂▄▄▃▂▂▂▂▂▂▂▁▂▄▃▃▃▃▃▃▂10947.510570.110871.010892.210561.49803.19965.09631.69453.19060.58621.88518.29446.49499.59574.99448.69316.69107.48968.09361.29157.08920.38663.98581.18515.78687.98552.49244.09243.78955.78659.18669.98380.68557.88612.68673.38385.98179.98577.09460.19082.88983.88944.48924.18871.78780.28500.1NANANA
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest ▂▂▂▂▂▁▂▁▁▁▁▁▁█▂▂▂▂▂▂▂▂▂▂▂▂▂222.1-24.9374.2477.6327.2-217.137.3-153.2-242.5-502.3-814.2-868.5-276.29499.5127.5124.3104.90.4-51.0450.7339.8200.716.122.03.4260.4166.4NANANA255.0NANANA628.0NANANANANANANANANANANANANANANA
us-gaap:CommonStockValue ▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁████▇▇▇▇▇▇▇▇▇▇▇█30.730.730.730.730.630.630.630.630.630.530.530.530.530.530.530.430.430.430.430.330.330.330.330.230.230.230.236.136.136.136.136.036.036.036.036.036.035.935.935.835.835.836.5NANANA36.4NANANA
us-gaap:AdditionalPaidInCapitalCommonStock ▄▄▄▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁█████▇▇▇▇▇▇▇▇▇▇▇2386.82380.82376.22371.32364.12357.32348.12342.32335.62328.52321.72314.32308.62302.42303.32295.22282.92277.42272.82263.02258.72253.62247.22239.22235.52230.72221.22651.22646.22640.82634.12623.82619.72613.42607.72604.22600.12600.42591.12580.92577.22572.42615.4NANANA2587.4NANANA
us-gaap:RetainedEarningsAccumulatedDeficit ████▇▇▇▇▆▆▆▅▆▅▅▅▄▄▄▄▃▃▃▃▂▂▂▄▄▃▃▃▂▂▂▂▁▁▁▂▂▁▁11487.611363.211269.611192.311019.210812.010728.710491.510308.910083.19863.19670.810012.49777.89542.29327.29126.78927.48744.08542.48353.28160.67995.27814.17656.07472.97332.88658.08478.98273.88083.27899.77732.47548.57371.67173.46979.76793.57031.27487.37313.77112.37060.8NANANA6289.5NANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▆▅▇▇▇▄▅▄▄▃▁▁▄▅▆▆▆▅▅▇▇▆▅▅▅▆▆██▇▆▇▆▇█222.1-24.9374.2477.6327.2-217.137.3-153.2-242.5-502.3-814.2-868.5-276.2-82.4127.5124.3104.90.4-51.0450.7339.8200.716.122.03.4260.4166.4548.6631.9454.4255.0409.6216.7485.7628.0NANANANANANANANANANANANANANANA
us-gaap:TreasuryStockValue ████████▇▇▇▆▆▆▅▅▅▄▄▄▃▃▃▂▂▂▁▆▆▆▅▅▅▄▄▄▃▃▂▂▂▁▁3179.73179.73179.73179.73179.73179.73179.73079.62979.52879.32779.32628.92628.92528.82428.62328.52228.32128.22028.21925.21825.01724.91624.91524.41409.41306.31198.22649.92549.42449.42349.32299.22224.22125.82030.71930.61830.41705.31530.11530.11279.91133.81110.2NANANA754.2NANANA
 us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementEquityComponents us-gaap:AdditionalPaidInCapital▄▃▃▄▄▅▄▄▄▄▄▄▄▁▅▆▄▃▅▃▃▄▅▃▃▅▆▃▄▄▆▃▄▄▃▃▁▅▆▃▃▆▃▃▃█6.04.64.97.26.89.25.86.77.16.87.45.76.2-0.98.112.35.54.69.84.35.16.48.03.74.89.511.35.05.46.710.34.16.35.73.54.1-0.39.310.23.74.812.24.33.64.116.0NANANANA
 us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementEquityComponents us-gaap:CommonStockNANA0.00.10.0NA0.00.00.1NA0.00.00.0NANANANANANANANANANANANANANANANANA0.10.0NANA0.00.00.10.00.10.00.00.10.00.00.00.1NANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities █▄▁▇█▆▇▆▇▇▇▆▆▆▆▆▆▆▆▅▆▆▆▆▆▆▆▆▆▆▆▆▅▆▇▆▆▆▆▅▆▆▆▆▆▆706.2-162.0-681.3426.4632.5219.9484.8314.1425.9516.8453.0387.3396.3299.9283.4224.0334.0308.0361.2193.5268.1293.3292.7273.0326.3400.1279.6218.2379.1346.7322.0261.2183.2265.1425.8274.7349.8329.3405.0173.0314.7301.0283.0245.4386.8281.6NANANANA
us-gaap:NetCashProvidedByUsedInInvestingActivities ▁▇█▅▁▆▅▄▃▄▄▅▃▆▅▅▅▅▅▆▃▅▄▅▅▄▄▅▅▃▅▅▅▆▄▄▄▅▄▅▄▆▄▄▅▄-1095.3588.6822.40.6-1213.3122.6-187.6-198.7-642.0-365.2-342.714.2-720.9119.3-106.7-101.5-152.0-124.4-189.4331.9-742.0-110.5-258.2-102.1-119.1-233.6-198.0-126.6-21.4-540.6-110.7-104.0-9.3184.1-243.5-349.0-339.1-181.8-269.3-94.8-234.2188.0-230.8-413.8-179.2-249.9NANANANA
us-gaap:NetCashProvidedByUsedInFinancingActivities ▄▄▄▁█▄▃▄▆▃▃▃▆▃▄▄▄▄▄▁█▄▅▃▄▃▅▄▂▆▄▄▃▂▄▅▄▄▄▄▄▁▄▆▄▄-49.6-61.8-47.9-488.8409.2-89.4-290.1-99.2214.8-183.5-230.5-286.8115.2-187.7-169.4-169.4-172.0-177.0-159.3-531.3447.0-175.0-30.9-184.2-168.7-184.9-39.7-143.0-321.9176.0-180.2-142.0-228.1-424.5-158.689.9-75.2-161.6-71.4-97.1-65.9-486.0-77.2165.6-177.9-51.6NANANANA
us-gaap:CashAndCashEquivalentsPeriodIncreaseDecrease NA364.8NANA-171.6253.17.116.2-1.3-31.9-120.2114.7-209.4231.57.3-46.910.06.612.5-5.9-26.97.83.6-13.338.5-18.441.9-51.435.8-17.931.115.2-54.224.723.715.6-64.5-14.164.4-19.014.63.0-25.0-2.729.6-19.9NANANANA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect NANANA-61.8NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:DeferredIncomeTaxExpenseBenefit ▅▄█▅▅▄▄▅▅▅▅▃▄▄▄▄▅▅▄▅▅▅▄▅▄▅▃▅▅▅▅▅▄▅▅▅▆▅▁▅▅▅▅▅▅▅29.3-21.7279.223.41.5-16.5-23.015.1-3.218.15.9-95.8-11.3-21.8-21.1-24.910.743.8-19.812.1-4.342.6-10.00.0-10.449.5-115.032.225.467.951.49.0-19.39.48.64.776.458.8-298.733.317.239.559.425.13.256.5NANANANA
us-gaap:NetCashProvidedByUsedInOperatingActivities █▄▁▇█▆▇▆▇▇▇▆▆▆▆▆▆▆▆▅▆▆▆▆▆▆▆▆▆▆▆▆▅▆▇▆▆▆▆▅▆▆▆▆▆▆706.2-162.0-681.3426.4632.5219.9484.8314.1425.9516.8453.0387.3396.3299.9283.4224.0334.0308.0361.2193.5268.1293.3292.7273.0326.3400.1279.6218.2379.1346.7322.0261.2183.2265.1425.8274.7349.8329.3405.0173.0314.7301.0283.0245.4386.8281.6NANANANA
us-gaap:NetIncomeLoss ▇▇▆▇█▇█▇███▂█████▇█▇▇▇▇▇▇▇▂▇▇▇▇▇▇▇▇▇▇▇▁▇▇▇▇▇▇▇▇▇█▇182.9153.0135.4231.1265.5161.0296.2242.0281.2280.9249.1-284.7285.5273.5266.9252.3245.1229.9248.0236.0236.8210.6226.1203.8224.3212.9-279.1221.1242.5228.9221.2205.7218.6212.6233.9230.2216.4213.9-425.4205.6229.8225.4225.8220.8209.7229.8199.4221.1267.2164.9
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ▁▇█▅▁▆▅▄▃▄▄▅▃▆▅▅▅▅▅▆▃▅▄▅▅▄▄▅▅▃▅▅▅▆▄▄▄▅▄▅▄▆▄▄▅▄-1095.3588.6822.40.6-1213.3122.6-187.6-198.7-642.0-365.2-342.714.2-720.9119.3-106.7-101.5-152.0-124.4-189.4331.9-742.0-110.5-258.2-102.1-119.1-233.6-198.0-126.6-21.4-540.6-110.7-104.0-9.3184.1-243.5-349.0-339.1-181.8-269.3-94.8-234.2188.0-230.8-413.8-179.2-249.9NANANANA
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▃▄▂▂▆▆▇▇▅▃█▅▄▄▆▁▂▃▃▁▃▁▃▂▂▄▃▄▄▃26.730.919.622.038.439.143.442.636.828.148.536.030.529.140.616.920.527.324.918.524.417.226.920.221.731.427.728.430.328.1NANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▄▄▄▁█▄▃▄▆▃▃▃▆▃▄▄▄▄▄▁█▄▅▃▄▃▅▄▂▆▄▄▃▂▄▅▄▄▄▄▄▁▄▆▄▄-49.6-61.8-47.9-488.8409.2-89.4-290.1-99.2214.8-183.5-230.5-286.8115.2-187.7-169.4-169.4-172.0-177.0-159.3-531.3447.0-175.0-30.9-184.2-168.7-184.9-39.7-143.0-321.9176.0-180.2-142.0-228.1-424.5-158.689.9-75.2-161.6-71.4-97.1-65.9-486.0-77.2165.6-177.9-51.6NANANANA
us-gaap:ProceedsFromIssuanceOfLongTermDebt NANA0.00.0NANA0.0446.0NANA0.00.0NANA0.00.0NANA0.00.0NANA271.40.00.00.00.00.00.0347.20.0NANANA0.0NANANA0.0NANANA0.0NANANANANANANA
us-gaap:RepaymentsOfLongTermDebt NANA35.015.015.015.0111.6351.515.015.0NANA15.015.015.015.018.315.215.0375.010.813.2163.714.219.329.16.45.2160.015.015.015.015.071.224.411.416.717.517.517.525.224.215.65.024.433.3NANANANA
us-gaap:PaymentsOfDividends ████████▇▇▇▇▆▆▆▆▅▅▅▅▅▅▅▅▄▄▄▄▃▃▃▃▃▃▃▃▂▂▂▂▁▂▁▂▁▁58.358.458.158.058.057.858.959.455.255.755.456.950.952.451.951.845.846.546.446.844.245.245.045.741.242.341.742.037.438.337.738.434.735.735.736.530.231.430.732.028.429.929.430.227.527.7NANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value3030303030303030303030303030303030303030303030303030303636363636363636363635353535353636
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.00.00.00.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.1

us-gaap:CommonStockValue us-gaap:ConsolidatedEntities

srt:ParentCompany


Common
Period End2020-12-312019-12-312018-12-312017-12-31
Value30303030
Percentage of CommonStockValue100.0100.0100.0100.0
Percentage of Assets0.00.00.00.0
Percentage of Assets srt:ParentCompany0.20.20.20.2

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value205204203203203208211214218221222226228230234237239246249252254257260264266270278283291299307314324332333
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value204204203203203208211214218220221225227229233236239245248251253256259262265269278283290298306312323331332
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount


Antidilutive
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-03-312014-09-302013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value300000.01600000.02000000.01800000.01100000.01200000.01200000.01300000.01000000.0700000.0400000.0400000.0400000.0500000.0500000.0500000.0100000.0900000.0000400000.02800000.02300000.02200000.02400000.01900000.01900000.03600000.03400000.03700000.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value0.890.750.661.131.30.791.441.161.331.311.15-1.31.291.231.191.121.081.01.071.011.00.880.930.830.90.85-1.110.870.940.880.850.780.820.790.860.830.760.74-1.450.690.750.720.710.680.630.690.60.670.810.5
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value0.890.750.661.131.30.791.441.161.331.311.15-1.31.291.231.191.121.071.01.071.011.00.880.930.830.90.84-1.110.870.940.880.840.780.820.790.850.830.760.73-1.450.690.750.720.710.680.630.690.60.660.80.5
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Benefits Losses And Expenses

us-gaap:BenefitsLossesAndExpenses

us-gaap:BenefitsLossesAndExpenses


Benefits
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2730287341482696268326692657266026642634257133052535255824932452246024762425243124212421240523582383234430932297230722842280225622902321233523072321230133092252222622322257220122022200
Percentage of BenefitsLossesAndExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues91.293.597.190.088.893.087.689.988.388.289.2112.987.788.287.887.087.288.286.788.087.788.888.488.888.288.6117.488.086.987.588.288.888.088.487.987.888.788.1127.088.586.887.187.187.187.785.9

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value429-246.132381809-93.4486331541592303-877.09181270271349281-253.7346375395220222-32.7306-661.313742042866398-50.47071420361207-862.765526828073276244291
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues14.4-8.00.712.726.8-3.316.011.217.919.810.5-30.03.22.89.59.612.410.0-9.112.613.614.58.18.4-1.211.6-25.15.315.816.42.615.7-1.92.72.716.013.87.9-33.125.810.510.92.810.99.711.4

Deferred Policy Acquisition Cost Amortization Expense

us-gaap:DeferredPolicyAcquisitionCostAmortizationExpense

us-gaap:DeferredPolicyAcquisitionCostAmortizationExpense


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value136166139149140176141146151170136136140151123123138141115118126132106117124134107107106118959810112393879999133125136138139130135141
Percentage of DeferredPolicyAcquisitionCostAmortizationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues4.55.43.35.04.76.14.74.95.05.74.84.74.95.24.44.44.95.04.14.34.64.93.94.44.65.14.14.14.04.53.73.93.94.73.53.33.83.85.14.95.35.45.45.25.45.5

Gain Loss On Investments

us-gaap:GainLossOnInvestments

us-gaap:GainLossOnInvestments


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.98413044.433-144.09.2-26.2-7.31.1-41.46.7-2.6-2.2119.88.11128115.3-20.5-2.7-26.60.8-15.3-17.31.2256.39.3-26.113102421-2.1127.4-23.9-3.615271.1-29.525
Percentage of GainLossOnInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.02.830.50.11.1-5.00.3-0.9-0.20.0-1.40.2-0.1-0.10.40.30.30.41.00.40.2-0.8-0.1-1.00.0-0.6-0.70.01.00.20.4-1.00.50.40.90.8-0.10.50.3-0.9-0.10.61.10.0-1.21.0

us-gaap:GainLossOnInvestments unm:PhaseOfSignificantTransaction, unm:SignificantTransaction

unm:Phase2, unm:ClosedBlockIndividualDisabilityReinsuranceTransaction


Gain
Period End2021-06-302021-03-31
Value0.067
Percentage of GainLossOnInvestments0.079.9
Percentage of Revenues0.02.2
Percentage of Revenues unm:Phase2 unm:ClosedBlockIndividualDisabilityReinsuranceTransaction0.00.0

us-gaap:GainLossOnInvestments us-gaap:ConsolidationItems

us-gaap:OperatingSegments


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value0.98413044.433-144.09.2-26.2-7.31.1-41.46.7-2.6-2.2119.88.11128115.3-20.5-2.7-26.60.8-15.3-17.31.2256.39.3-26.1
Percentage of GainLossOnInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.02.830.50.11.1-5.00.3-0.9-0.20.0-1.40.2-0.1-0.10.40.30.30.41.00.40.2-0.8-0.1-1.00.0-0.6-0.70.01.00.20.4-1.0
Percentage of Revenues us-gaap:OperatingSegments0.02.80.00.11.1-5.00.0-0.9-0.20.00.00.2-0.1-0.10.00.30.30.40.00.40.2-0.80.0-1.00.0-0.60.00.01.00.20.0-1.0

us-gaap:GainLossOnInvestments us-gaap:ConsolidationItems, unm:SignificantTransaction

us-gaap:OperatingSegments, unm:ClosedBlockIndividualDisabilityReinsuranceTransaction


Gain
Period End2021-06-302021-03-31
Value0.067
Percentage of GainLossOnInvestments0.079.9
Percentage of Revenues0.02.2
Percentage of Revenues us-gaap:OperatingSegments unm:ClosedBlockIndividualDisabilityReinsuranceTransaction0.00.0

us-gaap:OperatingSegments, unm:UnrelatedToSignificantTransaction


Gain
Period End2021-06-302021-03-312020-06-302020-03-31
Value0.91733-144.0
Percentage of GainLossOnInvestments100.020.1100.0100.0
Percentage of Revenues0.00.61.1-5.0
Percentage of Revenues us-gaap:OperatingSegments unm:UnrelatedToSignificantTransaction0.00.00.00.0

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

us-gaap:ForeignExchangeContract, us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument, us-gaap:GainLossOnInvestmentsMember1


Gain
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.0-0.10.00.00.3-0.81.10.80.20.40.90.02.25.20.31.2
Percentage of GainLossOnInvestments0.0-2.30.0-0.03.33.1-15.172.7-0.56.0-34.6-0.019.353.13.710.9
Percentage of Revenues0.0-0.00.00.00.0-0.00.00.00.00.00.00.00.10.20.00.0
Percentage of Revenues us-gaap:ForeignExchangeContract us-gaap:CashFlowHedging us-gaap:DesignatedAsHedgingInstrument us-gaap:GainLossOnInvestmentsMember10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ForeignExchangeContract, us-gaap:FairValueHedging, us-gaap:DesignatedAsHedgingInstrument, us-gaap:GainLossOnInvestmentsMember1


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value1.1-9.5169.710-13.27.8-4.81.1-0.3-1.0-0.3-1.1-0.30.00.00.0
Percentage of GainLossOnInvestments122.2-11.21.3220.530.59.284.818.3-15.1-27.32.4-4.542.313.60.00.00.0
Percentage of Revenues0.0-0.30.40.30.3-0.50.3-0.20.0-0.0-0.0-0.0-0.0-0.00.00.00.0
Percentage of Revenues us-gaap:ForeignExchangeContract us-gaap:FairValueHedging us-gaap:DesignatedAsHedgingInstrument us-gaap:GainLossOnInvestmentsMember10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:InterestRateSwap, us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument, us-gaap:GainLossOnInvestmentsMember1


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.02.43970.00.10.0-0.41.70.6-3.50.00.00.00.12.30.00.00.2
Percentage of GainLossOnInvestments0.02.830.50.00.3-0.0-4.3-6.5-8.2-318.2-0.00.0-0.0-4.520.20.00.01.8
Percentage of Revenues0.00.19.30.00.00.0-0.00.10.0-0.10.00.00.00.00.10.00.00.0
Percentage of Revenues us-gaap:InterestRateSwap us-gaap:CashFlowHedging us-gaap:DesignatedAsHedgingInstrument us-gaap:GainLossOnInvestmentsMember10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:InterestRateSwap, us-gaap:FairValueHedging, us-gaap:DesignatedAsHedgingInstrument, us-gaap:GainLossOnInvestmentsMember1


Gain
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.00.60.3-1.5-0.3-0.6-2.1-1.5-2.10.00.31.91.4-0.5-2.0-0.6
Percentage of GainLossOnInvestments0.013.60.91.0-3.32.328.8-136.45.10.0-11.5-86.412.3-5.1-24.7-5.5
Percentage of Revenues0.00.00.0-0.1-0.0-0.0-0.1-0.1-0.10.00.00.10.0-0.0-0.1-0.0
Percentage of Revenues us-gaap:InterestRateSwap us-gaap:FairValueHedging us-gaap:DesignatedAsHedgingInstrument us-gaap:GainLossOnInvestmentsMember10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Gains Losses On Extinguishment Of Debt

us-gaap:GainsLossesOnExtinguishmentOfDebt us-gaap:ConsolidationItems

us-gaap:GainsLossesOnExtinguishmentOfDebt

us-gaap:OperatingSegments


Gains
Period End2021-06-302019-12-312019-09-302018-12-312018-09-30
Value-67.3-2.1-25.20.00.0
Percentage of GainsLossesOnExtinguishmentOfDebt100.0100.0100.00.00.0
Percentage of Revenues-2.2-0.1-0.90.00.0
Percentage of Revenues us-gaap:OperatingSegments-2.20.0-0.90.00.0

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value262198124299337202377299352353309-377.8354341345366361330371332340304316298319303-457.9312346326305284311303322320296310-704.3293338330335326308361295334411250
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues8.86.52.910.011.27.012.410.111.711.810.8-12.912.311.812.213.012.811.813.312.012.311.211.611.211.811.4-17.412.013.112.511.811.212.011.612.112.211.311.9-27.011.513.212.912.912.912.314.111.913.315.610.2

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments us-gaap:ConsolidationItems

us-gaap:OperatingSegments


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value262198124299337202377299352353309-377.8354341345366361330371332340304316298319303-457.9312349329305284
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0101.0101.0100.0100.0
Percentage of Revenues8.86.52.910.011.27.012.410.111.711.810.8-12.912.311.812.213.012.811.813.312.012.311.211.611.211.811.4-17.412.013.212.611.811.2
Percentage of Revenues us-gaap:OperatingSegments8.86.50.010.011.27.00.010.111.711.80.0-12.912.311.80.013.012.811.80.012.012.311.20.011.211.811.40.012.013.212.60.011.2

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value-5.8-5.5-5.2-4.8-4.9-4.9-4.7-4.5-4.6-4.6-5.5-5.5-5.6-5.5-4.9-4.9-4.9-4.9-3.8-4.1-3.9-4.0-2.8-3.0-2.8-3.0-65.3-1.0-1.0-1.0-1.02.1
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments-2.2-2.8-4.2-1.6-1.5-2.4-1.2-1.5-1.3-1.3-1.81.5-1.6-1.6-1.4-1.3-1.4-1.5-1.0-1.2-1.1-1.3-0.9-1.0-0.9-1.014.3-0.3-0.3-0.3-0.30.7
Percentage of Revenues-0.2-0.2-0.1-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-2.5-0.0-0.0-0.0-0.00.1
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value16175018191820221620161514119.013121213121547121310119.221109.67.9
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments6.48.940.36.25.79.35.37.64.75.75.5-4.04.13.42.53.83.73.33.93.65.214.94.04.33.4-2.52.96.33.23.12.8
Percentage of Revenues0.60.61.20.60.60.70.70.80.50.70.60.50.50.40.30.50.40.40.50.40.61.70.50.50.40.40.40.80.40.40.3
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value-1.6-73.11.0-0.1-5.4-53.9-5.7-20.8-8.1-8.7-22.61.2-0.1-0.80.88.22.23.40.51.1-1.3-15.5-35.00.8-1.1-9.3-3.55.40.9-3.7-3.5-27.5
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments-0.6-36.80.8-0.0-1.6-26.7-1.5-6.9-2.3-2.5-7.3-0.3-0.0-0.20.22.20.61.00.10.3-0.4-5.1-11.10.3-0.3-3.10.81.70.3-1.1-1.1-9.7
Percentage of Revenues-0.1-2.40.0-0.0-0.2-1.9-0.2-0.7-0.3-0.3-0.80.0-0.0-0.00.00.30.10.10.00.0-0.0-0.6-1.30.0-0.0-0.4-0.10.20.0-0.1-0.1-1.1
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value7945-10.76872418157707260-93.1696778114116100123961039390959590-178.891104978478929188908096-278.98710810410910598131
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues2.71.5-0.32.32.41.42.71.92.32.42.1-3.22.42.32.84.14.13.64.43.53.73.43.33.63.53.4-6.83.53.93.73.33.13.63.53.33.43.13.7-10.73.44.24.14.24.23.95.1

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

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value-1.2-1.2-1.1-0.9-1.2-1.0-1.6-0.4-1.0-1.0-1.2-1.1-1.3-1.2-1.6-1.7-1.7-1.7-1.2-1.5-1.4-1.4-0.9-1.1-1.0-1.0-22.8-0.3-0.4-0.3-0.20.4
Percentage of IncomeTaxExpenseBenefit-1.5-2.610.3-1.3-1.7-2.4-2.0-0.7-1.4-1.4-2.01.2-1.9-1.8-2.0-1.5-1.5-1.7-1.0-1.6-1.4-1.5-1.0-1.2-1.0-1.112.8-0.3-0.4-0.3-0.20.5
Percentage of Revenues-0.0-0.0-0.0-0.0-0.0-0.0-0.1-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.1-0.1-0.1-0.1-0.0-0.1-0.1-0.1-0.0-0.0-0.0-0.0-0.9-0.0-0.0-0.0-0.00.0
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value3.53.7103.94.23.84.24.93.44.23.63.13.24.03.14.94.34.34.54.35.5144.24.63.64.03.35.53.83.32.8
Percentage of IncomeTaxExpenseBenefit4.48.1-98.15.75.89.25.28.54.85.85.9-3.34.65.12.74.24.33.54.74.25.916.24.44.84.0-2.23.65.33.93.93.6
Percentage of Revenues0.10.10.20.10.10.10.10.20.10.10.10.10.10.10.10.20.20.20.20.20.20.50.20.20.10.20.10.20.10.10.1
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value0.2-15.40.30.0-1.2-11.3-1.2-4.4-1.7-1.8-4.80.30.0-0.20.23.00.81.10.30.2-0.6-5.2-12.20.3-0.7-3.3-1.21.70.2-1.3-1.3-9.6
Percentage of IncomeTaxExpenseBenefit0.3-33.6-2.80.0-1.7-27.5-1.5-7.7-2.4-2.5-7.9-0.30.0-0.30.32.60.71.10.20.2-0.6-5.6-13.50.3-0.7-3.70.71.90.2-1.3-1.5-12.2
Percentage of Revenues0.0-0.50.00.0-0.0-0.4-0.0-0.1-0.1-0.1-0.20.00.0-0.00.00.10.00.00.00.0-0.0-0.2-0.40.0-0.0-0.1-0.00.10.0-0.0-0.1-0.4
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Interest And Debt Expense

us-gaap:InterestAndDebtExpense

us-gaap:InterestAndDebtExpense


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value45444549474546464242424242404040393939454238383838373838523737373737383635353535353739353433
Percentage of InterestAndDebtExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues1.51.41.11.61.61.61.51.61.41.41.51.51.51.41.41.41.41.41.41.61.51.41.41.41.41.41.51.52.01.51.51.51.41.41.41.41.31.41.41.41.41.51.51.41.41.3

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

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


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value7.37.37.37.37.37.37.37.77.77.77.18.5111110111111
Percentage of InterestAndDebtExpense16.116.416.014.815.416.015.716.718.118.316.919.926.928.426.728.428.628.6
Percentage of Revenues0.20.20.20.20.20.30.20.30.30.30.20.30.40.40.40.40.40.4
Percentage of Revenues us-gaap:InterestRateSwap us-gaap:CashFlowHedging us-gaap:DesignatedAsHedgingInstrument us-gaap:InterestExpense0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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


Interest
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.02.93.63.63.63.53.63.63.53.63.63.63.53.63.63.6
Percentage of InterestAndDebtExpense0.05.97.67.97.77.68.58.68.38.48.59.08.79.09.09.0
Percentage of Revenues0.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.1
Percentage of Revenues us-gaap:InterestRateSwap us-gaap:FairValueHedging us-gaap:DesignatedAsHedgingInstrument us-gaap:InterestExpense0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:InterestAndDebtExpense us-gaap:DerivativeInstrumentRisk, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:InterestRateSwap, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges


Interest
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value0.00.40.50.60.50.60.50.50.50.60.50.50.50.50.50.50.50.40.50.40.50.40.50.50.40.50.40.50.4
Percentage of InterestAndDebtExpense0.00.81.11.31.11.31.21.21.21.41.21.21.21.31.31.31.10.91.31.01.31.11.31.31.00.91.11.31.1
Percentage of Revenues0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues us-gaap:InterestRateSwap us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value182153135231265161296242281280249-284.7285273266252245229248236236210226203224212-279.1221242228221205218212233230216213-425.4205229225225220209229199221267164
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues6.15.03.27.78.85.69.88.29.39.48.6-9.79.99.49.48.98.78.28.98.58.67.78.37.78.38.0-10.68.59.18.88.68.18.48.18.88.88.38.2-16.38.19.08.88.78.78.49.08.08.810.26.7

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

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value-4.6-4.3-4.1-3.9-3.7-3.9-3.1-4.1-3.6-3.6-4.3-4.4-4.3-4.3-3.3-3.2-3.2-3.2-2.6-2.6-2.5-2.6-1.9-1.9-1.8-2.0-42.5-0.7-0.6-0.7-0.81.7
Percentage of NetIncomeLoss-2.5-2.8-3.0-1.7-1.4-2.4-1.0-1.7-1.3-1.3-1.71.5-1.5-1.6-1.2-1.3-1.3-1.4-1.0-1.1-1.1-1.2-0.8-0.9-0.8-0.915.2-0.3-0.2-0.3-0.40.8
Percentage of Revenues-0.2-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.2-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-1.6-0.0-0.0-0.0-0.00.1
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value131339141514151813151312117.75.98.98.07.98.58.010327.99.26.77.55.9166.86.35.1
Percentage of NetIncomeLoss7.39.129.36.35.79.35.37.44.65.65.3-4.24.02.92.33.63.53.23.63.44.914.43.94.13.1-2.72.76.73.02.82.5
Percentage of Revenues0.40.50.90.50.50.50.50.60.40.50.50.40.40.30.20.30.30.30.30.30.41.20.30.30.30.30.20.60.30.20.2
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value-1.8-57.70.7-0.1-4.2-42.6-4.5-16.4-6.4-6.9-17.80.9-0.1-0.60.65.21.42.30.20.9-0.7-10.3-22.80.5-0.4-6.0-2.33.70.7-2.4-2.2-17.9
Percentage of NetIncomeLoss-1.0-37.70.5-0.0-1.6-26.5-1.5-6.8-2.3-2.5-7.1-0.3-0.0-0.20.22.10.61.00.10.4-0.3-4.9-10.10.2-0.2-2.80.81.70.3-1.0-1.0-8.7
Percentage of Revenues-0.1-1.90.0-0.0-0.1-1.5-0.1-0.6-0.2-0.2-0.60.0-0.0-0.00.00.20.00.10.00.0-0.0-0.4-0.80.0-0.0-0.2-0.10.10.0-0.1-0.1-0.7
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-03-31
Value182153135231265161296242281280249-284.7285273266252245229248236236210226203224212-290.4221242228221205218212233230216213-425.4205229225229
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0104.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues6.15.03.27.78.85.69.88.29.39.48.6-9.79.99.49.48.98.78.28.98.58.67.78.37.78.38.0-11.08.59.18.88.68.18.48.18.88.88.38.2-16.38.19.08.89.0
Percentage of Revenues us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Investment Income

us-gaap:NetInvestmentIncome

us-gaap:NetInvestmentIncome


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value563548593613569585616599624594608619623602619609620602617611623606636612630602629606629612629615626621643619633619634629637618634618629613595579597573
Percentage of NetInvestmentIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues18.817.913.920.518.820.420.320.220.719.921.121.121.620.821.821.622.021.522.122.122.622.223.423.023.322.723.923.223.723.524.324.224.123.724.223.624.223.724.424.724.824.124.524.525.123.923.923.022.723.4

us-gaap:NetInvestmentIncome us-gaap:ConsolidationItems

us-gaap:OperatingSegments


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value563548593613569585616599624594608619623602619609620602617611623606636612630602629606632615629615
Percentage of NetInvestmentIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.5100.5100.0100.0
Percentage of Revenues18.817.913.920.518.820.420.320.220.719.921.121.121.620.821.821.622.021.522.122.122.622.223.423.023.322.723.923.223.823.624.324.2
Percentage of Revenues us-gaap:OperatingSegments18.817.90.020.518.820.40.020.220.719.90.021.121.620.80.021.622.021.50.022.122.622.20.023.023.322.70.023.223.823.60.024.2

us-gaap:NetInvestmentIncome us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, unm:ClosedBlock


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value294297356351326336356347354346345348345337341337340335343334341333340327331320323317325315327315
Percentage of NetInvestmentIncome52.354.260.157.357.357.557.957.956.758.356.856.255.456.155.155.454.855.755.654.654.755.053.553.552.653.251.452.451.851.552.151.2
Percentage of Revenues9.89.78.311.710.811.711.811.711.811.612.011.912.011.612.012.012.011.912.312.112.412.212.512.312.312.112.312.212.312.112.712.4
Percentage of Revenues us-gaap:OperatingSegments unm:ClosedBlock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, unm:ColonialLife


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value4137374336373736373637364037373636353536353435353637373535363536
Percentage of NetInvestmentIncome7.46.96.37.16.56.46.06.26.06.26.15.96.46.26.05.95.95.85.85.95.75.65.65.95.96.16.05.95.76.05.65.9
Percentage of Revenues1.41.20.91.51.21.31.21.21.21.21.31.31.41.31.31.31.31.31.31.31.31.21.31.41.41.41.41.41.31.41.41.4
Percentage of Revenues us-gaap:OperatingSegments unm:ColonialLife0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, unm:UnumInternational


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value3526252626262824442431263227
Percentage of NetInvestmentIncome6.34.74.34.34.64.54.64.17.24.25.14.35.14.6
Percentage of Revenues1.20.80.60.90.90.90.90.81.50.81.10.91.11.0
Percentage of Revenues us-gaap:OperatingSegments unm:UnumInternational0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, unm:UnumUs


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value183179173190176179189184184182187200196194202201205202206207207207220214215215226216218223229233
Percentage of NetInvestmentIncome32.632.829.231.131.130.730.730.729.530.630.832.331.532.232.633.033.133.633.433.933.334.234.635.034.235.735.935.734.736.436.537.9
Percentage of Revenues6.15.84.16.45.96.36.26.26.16.16.56.86.86.77.17.17.37.27.47.57.57.68.18.18.08.18.68.38.28.58.99.2
Percentage of Revenues us-gaap:OperatingSegments unm:UnumUs0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, us-gaap:CorporateAndOther


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value7.98.10.71.32.75.15.16.74.34.37.07.89.25.57.26.35.02.93.45.44.94.85.36.47.86.13.12.08.37.0-5.10.4
Percentage of NetInvestmentIncome1.41.50.10.20.50.90.81.10.70.71.21.31.50.91.21.00.80.50.60.90.80.80.81.01.21.00.50.31.31.1-0.80.1
Percentage of Revenues0.30.30.00.00.10.20.20.20.10.10.20.30.30.20.30.20.20.10.10.20.20.20.20.20.30.20.10.10.30.3-0.20.0
Percentage of Revenues us-gaap:OperatingSegments us-gaap:CorporateAndOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:ForeignExchangeContract, us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument, us-gaap:InvestmentIncome


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value4.13.13.62.43.22.93.23.33.74.63.84.64.75.04.66.55.25.4
Percentage of NetInvestmentIncome0.70.60.60.40.60.50.50.60.60.80.60.70.80.80.71.10.80.9
Percentage of Revenues0.10.10.10.10.10.10.10.10.10.20.10.20.20.20.20.20.20.2
Percentage of Revenues us-gaap:ForeignExchangeContract us-gaap:CashFlowHedging us-gaap:DesignatedAsHedgingInstrument us-gaap:InvestmentIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ForeignExchangeContract, us-gaap:FairValueHedging, us-gaap:DesignatedAsHedgingInstrument, us-gaap:InvestmentIncome


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value2.42.32.11.81.81.41.40.60.50.50.10.10.30.10.00.00.0
Percentage of NetInvestmentIncome0.40.40.40.30.30.20.20.10.10.10.00.00.00.00.00.00.0
Percentage of Revenues0.10.10.00.10.10.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues us-gaap:ForeignExchangeContract us-gaap:FairValueHedging us-gaap:DesignatedAsHedgingInstrument us-gaap:InvestmentIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:InterestRateSwap, us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument, us-gaap:InvestmentIncome


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value545268727373727475738075767778798181
Percentage of NetInvestmentIncome9.79.511.511.812.812.511.812.412.012.313.112.212.312.912.713.113.113.6
Percentage of Revenues1.81.71.62.42.42.52.42.52.52.42.82.62.72.72.82.82.92.9
Percentage of Revenues us-gaap:InterestRateSwap us-gaap:CashFlowHedging us-gaap:DesignatedAsHedgingInstrument us-gaap:InvestmentIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:ForeignExchangeContract, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value0.40.50.50.50.50.51.1-0.1-0.1-0.1-0.2-0.3-0.3-0.3-0.4-0.2-0.3-0.3-0.3-0.4-0.1-0.3-0.3-0.5-0.5-0.9-1.1-1.1-1.1-1.3-1.4
Percentage of NetInvestmentIncome0.10.10.10.10.10.10.2-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.1-0.0-0.0-0.0-0.0-0.1-0.0-0.0-0.0-0.1-0.1-0.1-0.2-0.2-0.2-0.2-0.2
Percentage of Revenues0.00.00.00.00.00.00.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.1-0.1
Percentage of Revenues us-gaap:ForeignExchangeContract us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:InterestRateSwap, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value16151818181819191717171616141514141313131311121312111212111011
Percentage of NetInvestmentIncome2.92.83.13.03.33.23.23.22.82.92.92.62.62.42.52.42.42.22.32.22.21.92.12.12.11.92.01.91.91.71.8
Percentage of Revenues0.50.50.40.60.60.70.60.60.60.60.60.60.60.50.50.50.50.50.50.50.50.40.50.50.50.50.50.50.40.40.4
Percentage of Revenues us-gaap:InterestRateSwap us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Operating Income Loss

us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems

us-gaap:OperatingIncomeLoss

us-gaap:OperatingSegments


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value362273296318316346370350359352351366357343372357353339346325338328322328321321323312338324309312
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues12.18.96.910.610.512.112.211.911.911.812.212.512.411.813.112.712.512.112.411.812.312.111.812.411.912.112.312.012.812.412.012.3
Percentage of Revenues us-gaap:OperatingSegments12.18.90.010.610.512.10.011.911.911.80.012.512.411.80.012.712.512.10.011.812.312.10.012.411.912.10.012.012.712.40.012.3

us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, unm:ClosedBlock


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value111971047036294626333134322928332632313428323328273626302636282625
Percentage of OperatingIncomeLoss30.735.535.122.211.68.612.47.79.48.89.98.88.38.48.97.59.29.310.08.89.610.28.78.411.48.39.38.410.88.78.78.2
Percentage of Revenues3.73.22.42.41.21.01.50.91.11.01.21.11.01.01.20.91.21.11.21.01.21.21.01.01.41.01.11.01.41.11.01.0
Percentage of Revenues us-gaap:OperatingSegments unm:ClosedBlock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, unm:ColonialLife


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value9573719290818787848585848481798181827979777777767777747174796969
Percentage of OperatingIncomeLoss26.426.824.028.928.723.423.724.923.524.224.323.023.723.621.222.923.124.223.024.323.023.524.123.224.124.223.022.822.124.322.422.1
Percentage of Revenues3.22.41.73.13.02.82.92.92.82.93.02.92.92.82.82.92.92.92.92.92.82.82.92.92.92.92.82.72.83.02.72.7
Percentage of Revenues us-gaap:OperatingSegments unm:ColonialLife0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, unm:UnumInternational


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2426202115192324302930262729
Percentage of OperatingIncomeLoss6.89.77.06.74.85.66.56.98.58.38.77.17.78.7
Percentage of Revenues0.80.90.50.70.50.70.80.81.01.01.10.91.01.0
Percentage of Revenues us-gaap:OperatingSegments unm:UnumInternational0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, unm:UnumUs


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value179115143188231261263261254252248270251243264258247239240231227215214218202214212214215207217219
Percentage of OperatingIncomeLoss49.442.348.359.173.375.671.174.570.871.670.874.070.371.070.972.470.170.369.271.067.065.766.566.663.066.765.768.663.863.970.270.2
Percentage of Revenues6.03.83.46.37.79.18.78.88.48.48.69.38.78.49.39.28.88.58.68.48.27.97.98.27.58.18.18.28.17.98.48.7
Percentage of Revenues us-gaap:OperatingSegments unm:UnumUs0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, us-gaap:CorporateAndOther


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value-48.5-38.9-42.7-54.1-58.1-45.9-50.5-48.9-43.8-45.4-48.2-47.1-35.5-40.3-33.2-36.2-37.6-39.8-37.6-41.6-35.7-31.8-34.6-26.9-33.4-29.9-31.5-32.9-28.4-26.5-39.8-32.9
Percentage of OperatingIncomeLoss-13.4-14.2-14.4-17.0-18.4-13.3-13.6-13.9-12.2-12.9-13.7-12.9-9.9-11.7-8.9-10.1-10.6-11.7-10.8-12.8-10.5-9.7-10.7-8.2-10.4-9.3-9.7-10.5-8.4-8.2-12.9-10.5
Percentage of Revenues-1.6-1.3-1.0-1.8-1.9-1.6-1.7-1.7-1.5-1.5-1.7-1.6-1.2-1.4-1.2-1.3-1.3-1.4-1.3-1.5-1.3-1.2-1.3-1.0-1.2-1.1-1.2-1.3-1.1-1.0-1.5-1.3
Percentage of Revenues us-gaap:OperatingSegments us-gaap:CorporateAndOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value9.37.35234-3.0-63.663-37.6-19.717-21.2-15.2-61.84710313917-48.8-25.8-79.4-26.4-27.0-44.164-54.0-43.9-60.2307.626680.9-69.96.029-18.628
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.30.21.21.2-0.1-2.22.1-1.3-0.70.6-0.7-0.5-2.11.60.41.11.40.6-1.7-0.9-2.9-1.0-1.0-1.72.4-2.0-1.7-2.31.10.31.02.70.0-2.70.21.1-0.71.1

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value247-399.1-103.4150544-254.41908925931154-592.3-193.8-192.43.21910451-501.7110139184-5.918-257.094-382.2-83.3177199-154.6192-269.0-142.3-162.3189145-6.4
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues8.3-13.0-2.45.018.0-8.96.33.08.610.41.9-20.2-6.7-6.60.10.73.71.8-17.94.05.06.8-0.20.7-9.53.6-14.5-3.26.77.6-6.07.6-10.3-5.4-6.17.25.5-0.2

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value4.13.8-58.12.03.97.0-50.45.44.62.8464.96.33.1-49.62.21.82.6-82.63.04.03.12.52.80.53.1-174.12.1-0.10.51111.222110
Percentage of OtherComprehensiveIncomeLossNetOfTax1.7-1.056.21.30.7-2.8-26.56.01.80.985.8-0.8-3.3-1.6-1550.011.31.75.116.52.72.91.7-42.415.1-0.23.345.6-2.5-0.10.3-72.30.6-82.2-7.5
Percentage of Revenues0.10.1-1.40.10.10.2-1.70.20.20.11.60.20.20.1-1.70.10.10.1-3.00.10.10.10.10.10.00.1-6.60.1-0.00.04.30.08.50.4
Percentage of Revenues us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value0.4-20.7-60.9-27.5-24.422-16.5-13.7-12.1-20.50.6-16.8-6.7-8.8-8.4-13.8-12.3-10.7-7.7-8.4-8.2-26.2-27.113-20.2207.514-28.51.7-0.9-8.35.9-2.0
Percentage of OtherComprehensiveIncomeLossNetOfTax0.25.258.9-18.3-4.5-9.0-8.7-15.3-4.7-6.61.12.83.54.6-262.5-71.1-11.8-20.81.5-7.6-5.9-14.2459.372.07.922.2-2.0-16.8-16.10.90.6-4.3-2.21.4
Percentage of Revenues0.0-0.7-1.4-0.9-0.80.8-0.5-0.5-0.4-0.70.0-0.6-0.2-0.3-0.3-0.5-0.4-0.4-0.3-0.3-0.3-1.0-1.00.5-0.70.80.30.5-1.10.1-0.0-0.30.2-0.1
Percentage of Revenues us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value233-389.5-36.8141567-220.619313528731228-565.2-131.6-234.250-0.87542-362.61422222344546-302.2124-171.7-39.2175189-291.7131-496.8-81.1
Percentage of OtherComprehensiveIncomeLossNetOfTax94.497.635.694.0104.386.7101.7151.4110.5100.152.195.467.9121.71575.0-4.172.082.572.3128.1160.1126.8-774.6250.0117.6131.944.947.199.195.1188.768.3184.757.0
Percentage of Revenues7.8-12.7-0.94.718.8-7.76.44.69.510.51.0-19.3-4.6-8.11.8-0.02.71.5-13.05.18.18.61.71.7-11.24.7-6.5-1.56.67.3-11.35.2-19.1-3.1
Percentage of Revenues us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value247-399.1-103.4150544-254.41908925931154-592.3-193.8-192.43.21910451-501.7110139184-5.918-257.094-382.2-83.3177199-154.6192-269.0-142.3-162.3189145-6.4
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues8.3-13.0-2.45.018.0-8.96.33.08.610.41.9-20.2-6.7-6.60.10.73.71.8-17.94.05.06.8-0.20.7-9.53.6-14.5-3.26.77.6-6.07.6-10.3-5.4-6.17.25.5-0.2
Percentage of Revenues us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedTranslationAdjustment


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value9.37.35234-3.0-63.663-37.6-19.717-21.2-15.2-61.84710313917-48.8-25.8-79.4-26.4-27.0-44.164-54.0-43.9-60.2307.626680.9-69.9
Percentage of OtherComprehensiveIncomeLossNetOfTax3.8-1.8-50.722.9-0.625.033.4-42.1-7.65.5-39.02.631.9-24.7337.5163.938.133.39.7-23.3-57.1-14.3457.6-237.1-25.3-57.411.572.317.03.8-17.035.4-0.349.1
Percentage of Revenues0.30.21.21.2-0.1-2.22.1-1.3-0.70.6-0.7-0.5-2.11.60.41.11.40.6-1.7-0.9-2.9-1.0-1.0-1.72.4-2.0-1.7-2.31.10.31.02.70.0-2.7
Percentage of Revenues us-gaap:AccumulatedTranslationAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Other Income

us-gaap:OtherIncome

us-gaap:OtherIncome


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value54605560495856555653505048494946515051515152505154545554545356545662535858577459565963586059
Percentage of OtherIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues1.82.01.32.01.62.01.91.91.91.81.71.71.71.71.71.71.81.81.81.91.91.91.91.92.02.12.12.12.12.12.22.12.22.42.02.22.22.22.92.32.22.32.42.32.42.3

us-gaap:OtherIncome us-gaap:ConsolidationItems

us-gaap:OperatingSegments


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value5460556049585655565350504849494651505151515250515454555454535654
Percentage of OtherIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues1.82.01.32.01.62.01.91.91.91.81.71.71.71.71.71.71.81.81.81.91.91.91.91.92.02.12.12.12.12.12.22.1
Percentage of Revenues us-gaap:OperatingSegments1.82.00.02.01.62.00.01.91.91.80.01.71.71.70.01.71.81.80.01.91.91.90.01.92.02.10.02.12.12.10.02.1

us-gaap:OtherIncome us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, unm:ClosedBlock


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value1218161713181718161818181819191820202021212221212223222324212223
Percentage of OtherIncome22.330.530.629.427.631.031.534.029.533.937.037.739.138.440.140.539.541.440.641.741.943.142.841.741.742.640.042.944.640.139.443.5
Percentage of Revenues0.40.60.40.60.50.60.60.60.50.60.60.60.70.70.70.70.70.70.70.80.80.80.80.80.80.90.80.90.90.80.90.9
Percentage of Revenues us-gaap:OperatingSegments unm:ClosedBlock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, unm:ColonialLife


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value0.30.20.20.30.30.31.20.90.70.60.20.40.30.30.30.30.20.30.20.40.30.30.00.10.00.00.00.10.1-0.10.10.0
Percentage of OtherIncome0.60.30.40.50.60.52.11.61.21.10.40.80.60.60.60.60.40.60.40.80.60.60.00.20.00.00.00.20.2-0.20.20.0
Percentage of Revenues0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0-0.00.00.0
Percentage of Revenues us-gaap:OperatingSegments unm:ColonialLife0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, unm:UnumInternational


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.10.10.10.20.20.00.30.00.30.00.40.00.00.0
Percentage of OtherIncome0.20.20.20.30.40.00.50.00.50.00.80.00.00.0
Percentage of Revenues0.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues us-gaap:OperatingSegments unm:UnumInternational0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, unm:UnumUs


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value4140374235403634363430302829272630282728272928283130303030302930
Percentage of OtherIncome76.266.967.869.371.068.565.062.665.765.059.661.359.658.656.256.758.857.254.355.754.655.856.654.657.456.855.155.355.257.451.655.7
Percentage of Revenues1.41.30.91.41.21.41.21.21.21.21.01.01.01.01.00.91.11.01.01.01.01.11.11.11.21.21.21.21.11.21.11.2
Percentage of Revenues us-gaap:OperatingSegments unm:UnumUs0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, us-gaap:CorporateAndOther


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value0.41.30.60.30.20.00.51.01.70.01.10.10.31.21.40.40.70.42.40.91.30.30.31.80.50.32.80.9-0.21.55.00.3
Percentage of OtherIncome0.72.21.10.50.40.00.91.83.00.02.20.20.62.42.80.91.40.84.71.72.50.60.63.50.90.65.01.6-0.42.88.80.6
Percentage of Revenues0.00.00.00.00.00.00.00.00.10.00.00.00.00.00.00.00.00.00.10.00.00.00.00.10.00.00.10.0-0.00.10.20.0
Percentage of Revenues us-gaap:OperatingSegments us-gaap:CorporateAndOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Policyholder Benefits And Claims Incurred Net

us-gaap:PolicyholderBenefitsAndClaimsIncurredNet

us-gaap:PolicyholderBenefitsAndClaimsIncurredNet


Policyholder
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1854205133461888188218541881187119021840182925781804180717891765175217491735174217331729173516901702165323721653165316311643164116611648168916861683166223811635159915931618158715791568
Percentage of PolicyholderBenefitsAndClaimsIncurredNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues61.966.878.363.062.364.662.063.263.161.663.588.162.462.363.062.662.162.362.163.162.863.563.763.663.062.590.063.462.362.563.664.663.962.863.564.264.363.791.464.362.462.262.462.862.961.2

us-gaap:PolicyholderBenefitsAndClaimsIncurredNet us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Policyholder
Period End2021-06-302021-03-31
Value266-133.1
Percentage of PolicyholderBenefitsAndClaimsIncurredNet14.4-6.5
Percentage of Revenues8.9-4.3
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.0

Premiums Earned Net

us-gaap:PremiumsEarnedNet

us-gaap:PremiumsEarnedNet


Premiums
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value23742378231923182368237123522331234323382263225122212250215821532142214220992089208120872037202020172006196719471943193818901897190519301937192919271921188818811875186918681850184918631865186118751872
Percentage of PremiumsEarnedNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues79.377.454.377.478.482.677.578.877.778.378.676.976.877.676.076.475.976.475.175.675.476.674.976.074.675.874.774.673.274.273.174.773.273.672.973.473.673.672.573.973.172.972.073.273.772.774.773.971.476.5

Revenues

us-gaap:Revenues

us-gaap:Revenues


Revenues
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value29933072427329963021287130342960301629872880292728902899283928192822280627962763276127252722265727032647263526092653261125862540260126242658262826172611260425452564256325932527251025612496251726282448
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues us-gaap:ConsolidationItems

us-gaap:OperatingSegments


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value29933072427329963021287130342960301629872880292728902899283928192822280627962763276127252722265727032647263526092656261425862540
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.1100.1100.0100.0
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.1100.1100.0100.0
Percentage of Revenues us-gaap:OperatingSegments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value7080769256706256961669305653356701366955658436392161875622496236663012640136380563381625246194163905638536196760589615036170663014624976196062218610785940359585593666161162236621196067859571601796004058015571165730754477
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidatedEntities

srt:ParentCompany


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-31
Value15308141971240713382
Percentage of Assets21.721.220.120.9
Percentage of Assets21.721.220.120.9
Percentage of Assets srt:ParentCompany100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, unm:ClosedBlock


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-31
Value3834137845381873815837823360043700836906361963554234527343603406334603350513471734466338823373434821345593354932992334313341834462339603315131564
Percentage of Assets54.154.654.154.854.655.155.255.155.055.655.855.254.654.954.854.454.454.254.554.554.154.154.554.454.254.754.353.553.1
Percentage of Assets54.154.654.154.854.655.155.255.155.055.655.855.254.654.954.854.454.454.254.554.554.154.154.554.454.254.754.353.553.1
Percentage of Assets us-gaap:OperatingSegments unm:ClosedBlock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, unm:ColonialLife


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-31
Value48844817486447714768442846294608453142864237414542644292418440994039397639233940387437593776377037703774369236233482
Percentage of Assets6.97.06.96.96.96.86.96.96.96.76.86.76.86.86.56.46.46.46.36.26.16.16.26.16.16.05.95.85.9
Percentage of Assets6.97.06.96.96.96.86.96.96.96.76.86.76.86.86.56.46.46.46.36.26.16.16.26.16.16.05.95.85.9
Percentage of Assets us-gaap:OperatingSegments unm:ColonialLife100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, unm:UnumInternational


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value428741634206397438233515386937133769364634263428
Percentage of Assets6.16.06.05.75.55.45.85.55.75.75.55.4
Percentage of Assets6.16.06.05.75.55.45.85.55.75.75.55.4
Percentage of Assets us-gaap:OperatingSegments unm:UnumInternational100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, unm:UnumUs


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-31
Value1886618563190341891018790177911858618617184381780217510172971764118036181091806918232181111803618465183101796318242186301864418865186761867218384
Percentage of Assets26.626.827.027.227.127.227.727.828.027.828.327.828.328.628.328.328.829.029.128.928.729.030.130.330.229.929.930.130.9
Percentage of Assets26.626.827.027.227.127.227.727.828.027.828.327.828.328.628.328.328.829.029.128.928.729.030.130.330.229.929.930.130.9
Percentage of Assets us-gaap:OperatingSegments unm:UnumUs100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, us-gaap:CorporateAndOther


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-31
Value44273867433338014098359729203110290826442172323530532581324034973284334431463280378332412145203421212299246527142318
Percentage of Assets6.35.66.15.55.95.54.44.64.44.13.55.24.94.15.15.55.25.35.15.15.95.23.53.33.43.63.94.43.9
Percentage of Assets6.35.66.15.55.95.54.44.64.44.13.55.24.94.15.15.55.25.35.15.15.95.23.53.33.43.63.94.43.9
Percentage of Assets us-gaap:OperatingSegments us-gaap:CorporateAndOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value5986058686597545872358743555325704857324563905486153253537315292053512544385435754065534175297354543546965304751925529225319154326539445271652974521225074450915509855305353623534465229251391516025058048933481334836345976
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets84.584.784.684.484.885.085.185.685.685.886.186.384.984.985.085.285.385.485.585.485.785.685.786.086.286.286.385.185.185.385.485.485.986.186.286.086.286.385.784.284.384.384.484.4

us-gaap:Liabilities us-gaap:ConsolidatedEntities

srt:ParentCompany


Liabilitiesus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-31
Value4437423237853807
Percentage of Liabilities7.47.47.17.0
Percentage of Assets6.36.36.15.9
Percentage of Assets srt:ParentCompany29.029.830.528.5

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value7080769256706256961669305653356701366955658436392161875622496236663012640136380563381625246194163905638536196760589615036170663014624976196062218610785940359585593666161162236621196067859571601796004058015571165730754477
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilitiesAndStockholdersEquity us-gaap:ConsolidatedEntities

srt:ParentCompany


Liabilities
Period End2020-12-312019-12-312018-12-312017-12-31
Value15308141971240713382
Percentage of LiabilitiesAndStockholdersEquity21.721.220.120.9
Percentage of Assets21.721.220.120.9
Percentage of Assets srt:ParentCompany100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value10947105701087110892105619803996596319453906086218518944694999574944893169107896893619157892086638581851586878552924492438955865986698380855786128673838581798577946090828983894489248871878085006397
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets15.515.315.415.615.215.014.914.414.414.213.913.715.115.115.014.814.714.614.514.614.314.414.314.013.813.813.714.914.914.714.614.614.113.913.814.013.813.714.315.815.715.715.60.00.00.015.60.0

us-gaap:StockholdersEquity us-gaap:ConsolidatedEntities

srt:ParentCompany


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-31
Value10871996586219574
Percentage of StockholdersEquity100.0100.0100.0100.0
Percentage of Assets15.414.913.915.0
Percentage of Assets srt:ParentCompany71.070.269.571.5

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

srt:CumulativeEffectPeriodOfAdoptionAdjustedBalance, us-gaap:AccountingStandardsUpdate201613, us-gaap:RetainedEarnings


Stockholders
Period End2021-03-312020-12-312020-06-302020-03-312019-12-31
Value1136311269110191081210709
Percentage of StockholdersEquity107.5103.7104.3110.3107.5
Percentage of Assets16.416.015.916.516.0
Percentage of Assets srt:CumulativeEffectPeriodOfAdoptionAdjustedBalance us-gaap:AccountingStandardsUpdate201613 us-gaap:RetainedEarnings0.00.00.00.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value222-24.9374477327-217.137-153.2-242.5-502.3-814.2-868.5-276.2-82.41271241040.4-51.045033920016223.4260166548631454255409216485628790600455448886436397341493437402341-958.2463
Percentage of StockholdersEquity2.0-0.23.44.43.1-2.20.4-1.6-2.6-5.5-9.4-10.2-2.9-0.91.31.31.10.0-0.64.83.72.20.20.30.03.01.95.96.85.12.94.72.65.77.39.17.25.65.29.44.84.43.85.54.94.64.0-15.00.0
Percentage of Assets0.3-0.00.50.70.5-0.30.1-0.2-0.4-0.8-1.3-1.4-0.4-0.10.20.20.20.0-0.10.70.50.30.00.00.00.40.30.91.00.70.40.70.40.81.01.31.00.80.71.50.80.70.60.00.00.00.60.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value2386238023762371236423572348234223352328232123142308230223032295228222772272226322582253224722392235223022212651264626402634262326192613260726042600260025912580257725722615261126072603258725462516
Percentage of StockholdersEquity21.822.521.921.822.424.023.624.324.725.726.927.224.424.224.124.324.525.025.324.224.725.325.926.126.325.726.028.728.629.530.430.331.330.530.330.031.031.830.227.328.428.629.229.329.429.730.439.80.0
Percentage of Assets3.43.43.43.43.43.63.53.53.53.63.83.73.73.73.63.63.63.63.73.53.53.63.73.63.63.53.64.34.34.34.44.44.44.24.24.24.34.44.34.34.44.54.60.00.00.04.70.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value303030303030303030303030303030303030303030303030303036363636363636363636353535353536363636363636
Percentage of StockholdersEquity0.30.30.30.30.30.30.30.30.30.40.40.30.30.30.30.30.30.30.30.30.30.30.40.40.30.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.60.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.00.00.00.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.00.00.00.10.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value114871136311269111921101910812107281049110308100839863967010012977795429327912689278744854283538160799578147656747273328658847882738083789977327548737171736979679370317487731371127060686466736491628955275077
Percentage of StockholdersEquity104.9107.5103.7102.8104.3110.3107.7108.9109.1111.3114.4113.5106.0102.999.798.798.098.097.591.391.291.592.391.189.986.085.793.791.792.493.391.192.388.285.682.783.283.182.079.180.579.278.976.975.273.974.086.40.0
Percentage of Assets16.216.416.016.115.916.516.015.715.715.815.915.516.115.514.914.614.414.314.113.413.113.213.212.712.411.911.714.013.613.513.613.313.012.311.811.511.511.411.712.512.612.512.30.00.00.011.50.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


Stockholders
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value-3179.7-3179.7-3179.7-3179.7-3179.7-3179.7-3079.6-2979.5-2879.3-2779.3-2628.9-2628.9-2528.8-2428.6-2328.5-2228.3-2128.2-2028.2-1925.2-1825.0-1724.9-1624.9-1524.4-1409.4-1306.3-1198.2-2649.9-2549.4-2449.4-2349.3-2299.2-2224.2-2125.8-2030.7-1930.6-1830.4-1705.3-1530.1-1530.1-1279.9-1133.8-1110.2-1081.7-884.0-754.2-754.2-754.2-54.2
Percentage of StockholdersEquity-30.1-29.2-29.2-30.1-32.4-31.9-32.0-31.5-31.8-32.2-30.9-27.8-26.6-25.4-24.6-23.9-23.4-22.6-20.6-19.9-19.3-18.8-17.8-16.6-15.0-14.0-28.7-27.6-27.4-27.1-26.5-26.5-24.8-23.6-22.3-21.8-20.8-17.8-16.2-14.1-12.6-12.4-12.1-10.0-8.6-8.9-11.80.0
Percentage of Assets-4.6-4.5-4.6-4.6-4.9-4.7-4.6-4.5-4.5-4.5-4.2-4.2-4.0-3.8-3.6-3.5-3.4-3.3-3.0-2.9-2.8-2.7-2.5-2.3-2.1-1.9-4.3-4.1-4.0-4.0-3.9-3.7-3.5-3.3-3.1-3.0-2.9-2.5-2.5-2.2-2.0-1.90.00.00.0-1.40.00.0
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Cash

us-gaap:Cash

us-gaap:Cash


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value12356119710316533784776062942149930877701171071008793120112109122841026011276946347102775338102116527156537881517149199
Percentage of Cash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.80.30.10.20.50.10.10.10.10.20.30.20.50.10.10.20.20.20.10.10.20.20.20.20.10.20.10.20.10.20.10.10.20.10.10.10.20.20.10.10.10.10.00.00.00.10.00.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302018-12-31
Value123197103165847794
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.30.10.20.10.10.2

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value1239119511511067989902823760705670641619
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.81.81.91.71.61.51.31.31.11.11.11.1

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value499500498508518540534568556548546521510508504489497501500509510515523529535537531531528519511508504499501497492497493492487482476443
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.70.70.70.70.70.80.80.80.80.90.90.80.80.80.80.80.80.80.80.80.80.80.90.90.90.90.90.90.80.90.90.90.90.80.80.80.80.80.80.80.80.80.80.8

Investments In Affiliates Subsidiaries Associates And Joint Ventures

us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures us-gaap:ConsolidatedEntities

us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures

srt:ParentCompany


Investments
Period End2020-12-312019-12-312018-12-312017-12-31
Value14122128201138312157
Percentage of InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures100.0100.0100.0100.0
Percentage of Assets20.019.118.419.0
Percentage of Assets srt:ParentCompany92.390.391.890.8

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value353353353350348348351348350351350346346348338338337335335336226229230232198198198200201201200201201200201201201201201201201201201201
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.50.50.50.50.50.50.50.50.50.50.60.60.60.60.50.50.50.50.50.50.40.40.40.40.30.30.30.30.30.30.30.30.30.30.30.30.30.30.30.30.30.40.40.4

us-gaap:Goodwill us-gaap:StatementBusinessSegments

unm:UnumInternational


Goodwillus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-31
Value45444239
Percentage of Goodwill12.812.512.211.8
Percentage of Assets0.10.10.10.1
Percentage of Assets unm:UnumInternational0.00.00.00.0

unm:UnumUs


Goodwillus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value280280280271271187187189
Percentage of Goodwill79.379.679.980.180.981.294.494.1
Percentage of Assets0.40.40.50.40.40.30.30.3
Percentage of Assets unm:UnumUs0.00.00.00.00.00.00.01.0

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2020-12-312019-12-31
Value82108
Percentage of OperatingLeaseRightOfUseAsset100.0100.0
Percentage of Assets0.10.2

Equity Securities Fv Ni

us-gaap:EquitySecuritiesFvNi

us-gaap:EquitySecuritiesFvNi


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value3331282424143229
Percentage of EquitySecuritiesFvNi100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.0

us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value27268.419204.70.00.00.0270.014140.2
Percentage of EquitySecuritiesFvNi82.982.929.780.181.031.50.00.00.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:FairValueInputsLevel1 us-gaap:FairValueMeasurementsRecurring0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value0.20.2150.20.25.62827270.224121210
Percentage of EquitySecuritiesFvNi0.60.653.70.80.837.685.90.00.00.084.20.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:FairValueInputsLevel2 us-gaap:FairValueMeasurementsRecurring0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value5.55.24.74.64.54.64.64.64.64.64.61.11.11.1
Percentage of EquitySecuritiesFvNi16.516.516.619.118.130.914.10.00.00.015.80.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:FairValueInputsLevel3 us-gaap:FairValueMeasurementsRecurring0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:FairValueInputsLevel3, us-gaap:EquitySecurities, us-gaap:MarketApproachValuationTechnique


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value5.55.24.74.64.54.64.64.64.64.64.61.11.11.1
Percentage of EquitySecuritiesFvNi16.516.516.619.118.130.914.10.00.00.015.80.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:FairValueInputsLevel3 us-gaap:EquitySecurities us-gaap:MarketApproachValuationTechnique0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Other Assets

us-gaap:OtherAssets

us-gaap:OtherAssets


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value177318091752847859885884890908906789709702641628631626619617647624632663660649656661701673658647632623619625644641642645660659650650610
Percentage of OtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.52.62.51.21.21.41.31.31.41.41.31.11.11.01.01.01.01.01.01.01.01.01.11.11.11.01.11.11.11.11.11.11.11.01.01.01.11.11.11.11.11.11.11.1

us-gaap:OtherAssets us-gaap:ConsolidatedEntities

srt:ParentCompany


Other
Period End2020-12-312019-12-312018-12-312017-12-31
Value496488446455
Percentage of OtherAssets28.355.356.672.4
Percentage of Assets0.70.70.70.7
Percentage of Assets srt:ParentCompany3.23.43.63.4

Long Term Debt Current

us-gaap:LongTermDebtCurrent us-gaap:ConsolidatedEntities, us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:LongTermDebtCurrent

srt:ParentCompany, unm:NotesIssuedin2010, us-gaap:SeniorNotes


Long
Period End2020-12-31
Value400
Percentage of LongTermDebtCurrent100.0
Percentage of Assets0.6
Percentage of Assets srt:ParentCompany unm:NotesIssuedin2010 us-gaap:SeniorNotes0.0

Long Term Debt

us-gaap:LongTermDebt

us-gaap:LongTermDebt


Long
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value33453326297129382999282727802612275525702631
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.75.04.84.64.84.74.44.44.44.34.6

Long Term Debt Noncurrent

us-gaap:LongTermDebtNoncurrent

us-gaap:LongTermDebtNoncurrent


Long
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value33452926297127382999247526282612
Percentage of LongTermDebtNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.74.44.84.34.84.14.24.4

us-gaap:LongTermDebtNoncurrent us-gaap:ConsolidatedEntities

srt:ParentCompany


Long
Period End2020-12-312019-12-312018-12-312017-12-31
Value3345284628312538
Percentage of LongTermDebtNoncurrent100.097.395.392.7
Percentage of Assets4.74.24.64.0
Percentage of Assets srt:ParentCompany21.920.122.819.0

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

srt:ParentCompany, unm:NotesIssued1990to1996, us-gaap:MediumTermNotes


Long
Period End2020-12-312019-12-312018-12-312017-12-31
Value20205050
Percentage of LongTermDebtNoncurrent0.60.71.71.9
Percentage of Assets0.00.00.10.1
Percentage of Assets srt:ParentCompany unm:NotesIssued1990to1996 us-gaap:MediumTermNotes0.00.00.00.0

srt:ParentCompany, unm:NotesIssuedIn2019, us-gaap:SeniorNotes


Long
Period End2020-12-312019-12-312018-12-31
Value4004000.0
Percentage of LongTermDebtNoncurrent12.013.70.0
Percentage of Assets0.60.60.0
Percentage of Assets srt:ParentCompany unm:NotesIssuedIn2019 us-gaap:SeniorNotes0.00.00.0

srt:ParentCompany, unm:NotesIssuedIn2019Due2049, us-gaap:SeniorNotes


Long
Period End2020-12-312019-12-312018-12-31
Value4504500.0
Percentage of LongTermDebtNoncurrent13.515.40.0
Percentage of Assets0.60.70.0
Percentage of Assets srt:ParentCompany unm:NotesIssuedIn2019Due2049 us-gaap:SeniorNotes0.00.00.0

srt:ParentCompany, unm:NotesIssuedIn2020Due2025, us-gaap:SeniorNotes


Long
Period End2020-12-31
Value500
Percentage of LongTermDebtNoncurrent14.9
Percentage of Assets0.7
Percentage of Assets srt:ParentCompany unm:NotesIssuedIn2020Due2025 us-gaap:SeniorNotes0.0

srt:ParentCompany, unm:NotesIssuedin1998with2028MaturityDate, us-gaap:SeniorNotes


Long
Period End2020-12-312019-12-312018-12-312017-12-31
Value335335365365
Percentage of LongTermDebtNoncurrent10.011.512.313.4
Percentage of Assets0.50.50.60.6
Percentage of Assets srt:ParentCompany unm:NotesIssuedin1998with2028MaturityDate us-gaap:SeniorNotes0.00.00.00.0

srt:ParentCompany, unm:NotesIssuedin1998with2038MaturityDate, us-gaap:JuniorSubordinatedDebt


Long
Period End2020-12-312019-12-312018-12-312017-12-31
Value203203226226
Percentage of LongTermDebtNoncurrent6.17.07.68.3
Percentage of Assets0.30.30.40.4
Percentage of Assets srt:ParentCompany unm:NotesIssuedin1998with2038MaturityDate us-gaap:JuniorSubordinatedDebt0.00.00.00.0

srt:ParentCompany, unm:NotesIssuedin2018witha2058MaturityDate, us-gaap:JuniorSubordinatedDebt


Long
Period End2020-12-312019-12-312018-12-312017-12-31
Value3003003000.0
Percentage of LongTermDebtNoncurrent9.010.210.10.0
Percentage of Assets0.40.40.50.0
Percentage of Assets srt:ParentCompany unm:NotesIssuedin2018witha2058MaturityDate us-gaap:JuniorSubordinatedDebt0.00.00.00.0

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

unm:NotesIssued1990to1996, us-gaap:MediumTermNotes


Long
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value2020505050505050
Percentage of LongTermDebtNoncurrent0.60.71.71.91.72.11.91.9
Percentage of Assets0.00.00.10.10.10.10.10.1
Percentage of Assets unm:NotesIssued1990to1996 us-gaap:MediumTermNotes0.00.00.00.00.00.00.00.0

unm:NotesIssuedIn2019, us-gaap:SeniorNotes


Long
Period End2020-12-312019-12-312018-12-31
Value4004000.0
Percentage of LongTermDebtNoncurrent12.013.70.0
Percentage of Assets0.60.60.0
Percentage of Assets unm:NotesIssuedIn2019 us-gaap:SeniorNotes0.00.00.0

unm:NotesIssuedIn2019Due2049, us-gaap:SeniorNotes


Long
Period End2020-12-312019-12-312018-12-31
Value4504500.0
Percentage of LongTermDebtNoncurrent13.515.40.0
Percentage of Assets0.60.70.0
Percentage of Assets unm:NotesIssuedIn2019Due2049 us-gaap:SeniorNotes0.00.00.0

unm:NotesIssuedIn2020Due2025, us-gaap:SeniorNotes


Long
Period End2020-12-31
Value500
Percentage of LongTermDebtNoncurrent14.9
Percentage of Assets0.7
Percentage of Assets unm:NotesIssuedIn2020Due2025 us-gaap:SeniorNotes0.0

unm:NotesIssuedin1998with2028MaturityDate, us-gaap:SeniorNotes


Long
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value335335365365365365365365
Percentage of LongTermDebtNoncurrent10.011.512.313.412.214.813.914.0
Percentage of Assets0.50.50.60.60.60.60.60.6
Percentage of Assets unm:NotesIssuedin1998with2028MaturityDate us-gaap:SeniorNotes0.00.00.00.00.00.00.00.0

unm:NotesIssuedin1998with2038MaturityDate, us-gaap:JuniorSubordinatedDebt


Long
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value203203226226226226226226
Percentage of LongTermDebtNoncurrent6.17.07.68.37.69.28.68.7
Percentage of Assets0.30.30.40.40.40.40.40.4
Percentage of Assets unm:NotesIssuedin1998with2038MaturityDate us-gaap:JuniorSubordinatedDebt0.00.00.00.00.00.00.00.0

unm:NotesIssuedin2014, us-gaap:SeniorNotes


Long
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value3503503503503503493490.0
Percentage of LongTermDebtNoncurrent10.512.011.812.811.714.113.30.0
Percentage of Assets0.50.50.60.50.60.60.60.0
Percentage of Assets unm:NotesIssuedin2014 us-gaap:SeniorNotes0.00.00.00.00.00.00.00.0

unm:NotesIssuedin2015, us-gaap:SeniorNotes


Long
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value2752752752752752730.0
Percentage of LongTermDebtNoncurrent8.29.49.310.09.211.00.0
Percentage of Assets0.40.40.40.40.40.50.0
Percentage of Assets unm:NotesIssuedin2015 us-gaap:SeniorNotes0.00.00.00.00.00.00.0

unm:NotesIssuedin2018witha2058MaturityDate, us-gaap:JuniorSubordinatedDebt


Long
Period End2020-12-312019-12-312018-12-312017-12-31
Value3003003000.0
Percentage of LongTermDebtNoncurrent9.010.210.10.0
Percentage of Assets0.40.40.50.0
Percentage of Assets unm:NotesIssuedin2018witha2058MaturityDate us-gaap:JuniorSubordinatedDebt0.00.00.00.0

unm:NotesPayabledue2042, us-gaap:SeniorNotes


Long
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value500500500500500250
Percentage of LongTermDebtNoncurrent14.917.116.818.316.710.1
Percentage of Assets0.70.70.80.80.80.4
Percentage of Assets unm:NotesPayabledue2042 us-gaap:SeniorNotes0.00.00.00.00.00.0

Deferred Finance Costs Noncurrent Net

us-gaap:DeferredFinanceCostsNoncurrentNet

us-gaap:DeferredFinanceCostsNoncurrentNet


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value343530242825
Percentage of DeferredFinanceCostsNoncurrentNet100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.10.00.00.00.0

us-gaap:DeferredFinanceCostsNoncurrentNet us-gaap:ConsolidatedEntities

srt:ParentCompany


Deferred
Period End2020-12-312019-12-312018-12-312017-12-31
Value34353024
Percentage of DeferredFinanceCostsNoncurrentNet100.0100.0100.0100.0
Percentage of Assets0.00.10.00.0
Percentage of Assets srt:ParentCompany0.20.20.20.2

Long Term Debt And Capital Lease Obligations

us-gaap:LongTermDebtAndCapitalLeaseObligations

us-gaap:LongTermDebtAndCapitalLeaseObligations


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value34413346334533783393291429263037334129582971298329972721273827542968298429993019304224422475221725802603262827832792294826122631264426732755278125402552257025862589260526312549
Percentage of LongTermDebtAndCapitalLeaseObligations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.94.84.74.94.94.54.44.55.14.64.84.84.84.34.34.34.74.84.84.74.83.94.13.64.24.14.24.54.54.84.44.44.54.34.44.54.24.34.34.34.54.64.64.7

us-gaap:LongTermDebtAndCapitalLeaseObligations us-gaap:ConsolidatedEntities

srt:ParentCompany


Long
Period End2020-12-312019-12-312018-12-312017-12-31
Value3345284628312538
Percentage of LongTermDebtAndCapitalLeaseObligations100.097.395.392.7
Percentage of Assets4.74.24.64.0
Percentage of Assets srt:ParentCompany21.920.122.819.0

us-gaap:LongTermDebtAndCapitalLeaseObligations us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsNonrecurring


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value34413346334533783393291429262971
Percentage of LongTermDebtAndCapitalLeaseObligations100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.94.84.74.94.94.54.44.8
Percentage of Assets us-gaap:FairValueMeasurementsNonrecurring0.00.00.00.00.00.00.00.0

Deferred Income Tax Liabilities Net

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:DeferredIncomeTaxLiabilitiesNet


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value4053194162101559395
Percentage of DeferredIncomeTaxLiabilitiesNet100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.60.50.60.30.20.10.1

Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent

country:GB, us-gaap:PensionPlansDefinedBenefit


Pension
Period End2020-12-312019-12-312018-12-31
Value5.94.10.0
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent100.0100.00.0
Percentage of Assets0.00.00.0
Percentage of Assets country:GB us-gaap:PensionPlansDefinedBenefit0.00.00.0

country:US, us-gaap:PensionPlansDefinedBenefit


Pension
Period End2020-12-312019-12-312018-12-31
Value558499471
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent9462.712175.60.0
Percentage of Assets0.80.70.8
Percentage of Assets country:US us-gaap:PensionPlansDefinedBenefit0.00.00.0

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Pension
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value109115114127134
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent1859.32824.40.00.00.0
Percentage of Assets0.20.20.20.20.2
Percentage of Assets us-gaap:OtherPostretirementBenefitPlansDefinedBenefit0.00.00.00.00.0

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2020-12-31
Value22
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0
Percentage of Assets0.0

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2020-12-31
Value16
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0
Percentage of Assets0.0

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2020-12-31
Value12
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0
Percentage of Assets0.0

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-31
Value9800000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0
Percentage of Assets0.0

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-31
Value34
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0
Percentage of Assets0.0

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2020-12-31
Value105
Percentage of OperatingLeaseLiability100.0
Percentage of Assets0.1

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2020-12-31
Value121
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0
Percentage of Assets0.2

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value10947105701087110892105619803996596319453906086218518944694999574944893169107896893619157892086638581851586878552924492438955865986698380855786128673838581798577946090828983894489248871878085006397
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets15.515.315.415.615.215.014.914.414.414.213.913.715.115.115.014.814.714.614.514.614.314.414.314.013.813.813.714.914.914.714.614.614.113.913.814.013.813.714.315.815.715.715.60.00.00.015.60.0

us-gaap:StockholdersEquity us-gaap:ConsolidatedEntities

srt:ParentCompany


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-31
Value10871996586219574
Percentage of StockholdersEquity100.0100.0100.0100.0
Percentage of Assets15.414.913.915.0
Percentage of Assets srt:ParentCompany71.070.269.571.5

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

srt:CumulativeEffectPeriodOfAdoptionAdjustedBalance, us-gaap:AccountingStandardsUpdate201613, us-gaap:RetainedEarnings


Stockholders
Period End2021-03-312020-12-312020-06-302020-03-312019-12-31
Value1136311269110191081210709
Percentage of StockholdersEquity107.5103.7104.3110.3107.5
Percentage of Assets16.416.015.916.516.0
Percentage of Assets srt:CumulativeEffectPeriodOfAdoptionAdjustedBalance us-gaap:AccountingStandardsUpdate201613 us-gaap:RetainedEarnings0.00.00.00.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value222-24.9374477327-217.137-153.2-242.5-502.3-814.2-868.5-276.2-82.41271241040.4-51.045033920016223.4260166548631454255409216485628790600455448886436397341493437402341-958.2463
Percentage of StockholdersEquity2.0-0.23.44.43.1-2.20.4-1.6-2.6-5.5-9.4-10.2-2.9-0.91.31.31.10.0-0.64.83.72.20.20.30.03.01.95.96.85.12.94.72.65.77.39.17.25.65.29.44.84.43.85.54.94.64.0-15.00.0
Percentage of Assets0.3-0.00.50.70.5-0.30.1-0.2-0.4-0.8-1.3-1.4-0.4-0.10.20.20.20.0-0.10.70.50.30.00.00.00.40.30.91.00.70.40.70.40.81.01.31.00.80.71.50.80.70.60.00.00.00.60.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value2386238023762371236423572348234223352328232123142308230223032295228222772272226322582253224722392235223022212651264626402634262326192613260726042600260025912580257725722615261126072603258725462516
Percentage of StockholdersEquity21.822.521.921.822.424.023.624.324.725.726.927.224.424.224.124.324.525.025.324.224.725.325.926.126.325.726.028.728.629.530.430.331.330.530.330.031.031.830.227.328.428.629.229.329.429.730.439.80.0
Percentage of Assets3.43.43.43.43.43.63.53.53.53.63.83.73.73.73.63.63.63.63.73.53.53.63.73.63.63.53.64.34.34.34.44.44.44.24.24.24.34.44.34.34.44.54.60.00.00.04.70.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value303030303030303030303030303030303030303030303030303036363636363636363636353535353536363636363636
Percentage of StockholdersEquity0.30.30.30.30.30.30.30.30.30.40.40.30.30.30.30.30.30.30.30.30.30.30.40.40.30.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.40.60.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.00.00.00.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.00.00.00.10.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value114871136311269111921101910812107281049110308100839863967010012977795429327912689278744854283538160799578147656747273328658847882738083789977327548737171736979679370317487731371127060686466736491628955275077
Percentage of StockholdersEquity104.9107.5103.7102.8104.3110.3107.7108.9109.1111.3114.4113.5106.0102.999.798.798.098.097.591.391.291.592.391.189.986.085.793.791.792.493.391.192.388.285.682.783.283.182.079.180.579.278.976.975.273.974.086.40.0
Percentage of Assets16.216.416.016.115.916.516.015.715.715.815.915.516.115.514.914.614.414.314.113.413.113.213.212.712.411.911.714.013.613.513.613.313.012.311.811.511.511.411.712.512.612.512.30.00.00.011.50.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


Stockholders
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value-3179.7-3179.7-3179.7-3179.7-3179.7-3179.7-3079.6-2979.5-2879.3-2779.3-2628.9-2628.9-2528.8-2428.6-2328.5-2228.3-2128.2-2028.2-1925.2-1825.0-1724.9-1624.9-1524.4-1409.4-1306.3-1198.2-2649.9-2549.4-2449.4-2349.3-2299.2-2224.2-2125.8-2030.7-1930.6-1830.4-1705.3-1530.1-1530.1-1279.9-1133.8-1110.2-1081.7-884.0-754.2-754.2-754.2-54.2
Percentage of StockholdersEquity-30.1-29.2-29.2-30.1-32.4-31.9-32.0-31.5-31.8-32.2-30.9-27.8-26.6-25.4-24.6-23.9-23.4-22.6-20.6-19.9-19.3-18.8-17.8-16.6-15.0-14.0-28.7-27.6-27.4-27.1-26.5-26.5-24.8-23.6-22.3-21.8-20.8-17.8-16.2-14.1-12.6-12.4-12.1-10.0-8.6-8.9-11.80.0
Percentage of Assets-4.6-4.5-4.6-4.6-4.9-4.7-4.6-4.5-4.5-4.5-4.2-4.2-4.0-3.8-3.6-3.5-3.4-3.3-3.0-2.9-2.8-2.7-2.5-2.3-2.1-1.9-4.3-4.1-4.0-4.0-3.9-3.7-3.5-3.3-3.1-3.0-2.9-2.5-2.5-2.2-2.0-1.90.00.00.0-1.40.00.0
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-312012-12-31
Value222-24.9374477327-217.137-153.2-242.5-502.3-814.2-868.5-276.294991271241040.4-51.045033920016223.4260166255628
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.3-0.00.50.70.5-0.30.1-0.2-0.4-0.8-1.3-1.4-0.415.10.20.20.20.0-0.10.70.50.30.00.00.00.40.30.41.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-312012-12-31
Value-522.1-526.2-530.0-471.9-473.9-477.8-484.8-434.4-439.8-444.4-447.2-493.8-498.7-505.0-508.1-458.5-460.7-462.5-465.1-382.5-385.5-389.5-392.6-395.1-397.9-398.4-401.5-229.9-574.5
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-235.12113.3-141.6-98.8-144.8220.1-1299.7283.6181.488.554.956.9180.6-5.3-398.5-368.9-439.2-115625.0912.0-84.9-113.4-194.1-2438.5-1795.9-11702.9-153.0-241.3-90.2-91.5
Percentage of Assets-0.7-0.8-0.8-0.7-0.7-0.7-0.7-0.6-0.7-0.7-0.7-0.8-0.8-0.8-0.8-0.7-0.7-0.7-0.8-0.6-0.6-0.6-0.6-0.6-0.6-0.6-0.6-0.4-0.9
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-312012-12-31
Value777797158186210187204218230250250266273282290304316327335343351378405391411391396401
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest34.9-309.626.133.256.9-97.0503.5-133.4-89.9-45.8-30.8-28.8-96.62.9221.4233.9290.379200.0-642.274.4101.1175.32347.81841.411520.6158.2235.0155.463.9
Percentage of Assets0.10.10.10.20.30.30.30.30.30.40.40.40.40.40.40.50.50.50.50.50.50.60.60.70.60.70.60.70.6
Percentage of Assets us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-312012-12-31
Value91167810671104963395615422286-0.1-312.4-340.7224356607557558483440803661438204158112414290135873
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest410.4-2723.7285.3231.3294.3-182.11651.2-275.5-118.30.038.439.2-81.33.7476.7448.4532.1120750.0-863.9178.2194.6218.41268.9720.93297.1159.1174.553.2139.1
Percentage of Assets1.31.01.51.61.40.60.90.60.4-0.0-0.5-0.50.40.60.90.90.90.80.71.31.00.70.30.30.20.70.50.21.4
Percentage of Assets us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedTranslationAdjustment


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-312012-12-31
Value-244.7-254.0-261.3-313.7-348.2-345.2-281.6-345.2-307.6-287.9-305.2-284.0-268.8-207.0-254.5-265.3-297.1-336.9-354.0-305.2-279.4-200.0-173.6-146.6-102.5-167.4-113.4-47.1-72.6
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-110.21020.1-69.8-65.7-106.4159.0-755.0225.3126.857.337.532.797.3-2.2-199.6-213.4-283.2-84225.0694.1-67.7-82.2-99.7-1078.3-666.4-3014.7-64.3-68.1-18.5-11.6
Percentage of Assets-0.3-0.4-0.4-0.5-0.5-0.5-0.4-0.5-0.5-0.5-0.5-0.5-0.4-0.3-0.4-0.4-0.5-0.5-0.6-0.5-0.4-0.3-0.3-0.2-0.2-0.3-0.2-0.1-0.1
Percentage of Assets us-gaap:AccumulatedTranslationAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value3030303030303030303030303030303030303030303030303030303636363636363636363635353535353636
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.00.00.00.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.1

us-gaap:CommonStockValue us-gaap:ConsolidatedEntities

srt:ParentCompany


Common
Period End2020-12-312019-12-312018-12-312017-12-31
Value30303030
Percentage of CommonStockValue100.0100.0100.0100.0
Percentage of Assets0.00.00.00.0
Percentage of Assets srt:ParentCompany0.20.20.20.2

Additional Paid In Capital Common Stock

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:AdditionalPaidInCapitalCommonStock


Additional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value23862380237623712364235723482342233523282321231423082302230322952282227722722263225822532247223922352230222126512646264026342623261926132607260426002600259125802577257226152587
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.43.43.43.43.43.63.53.53.53.63.83.73.73.73.63.63.63.63.73.53.53.63.73.63.63.53.64.34.34.34.44.44.44.24.24.24.34.44.34.34.44.54.64.7

us-gaap:AdditionalPaidInCapitalCommonStock us-gaap:ConsolidatedEntities

srt:ParentCompany


Additional
Period End2020-12-312019-12-312018-12-312017-12-31
Value2376234823212303
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0
Percentage of Assets3.43.53.83.6
Percentage of Assets srt:ParentCompany15.516.518.717.2

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1148711363112691119211019108121072810491103081008398639670100129777954293279126892787448542835381607995781476567472733286588478827380837899773275487371717369796793703174877313711270606289
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets16.216.416.016.115.916.516.015.715.715.815.915.516.115.514.914.614.414.314.113.413.113.213.212.712.411.911.714.013.613.513.613.313.012.311.811.511.511.411.712.512.612.512.311.5

us-gaap:RetainedEarningsAccumulatedDeficit us-gaap:ConsolidatedEntities

srt:ParentCompany


Retained
Period End2020-12-312019-12-312018-12-312017-12-31
Value112691072898639542
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0
Percentage of Assets16.016.015.914.9
Percentage of Assets srt:ParentCompany73.675.679.571.3

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value222-24.9374477327-217.137-153.2-242.5-502.3-814.2-868.5-276.2-82.41271241040.4-51.045033920016223.4260166548631454255409216485628
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.3-0.00.50.70.5-0.30.1-0.2-0.4-0.8-1.3-1.4-0.4-0.10.20.20.20.0-0.10.70.50.30.00.00.00.40.30.91.00.70.40.70.40.81.0

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:ConsolidatedEntities

srt:ParentCompany


Accumulated
Period End2020-12-312019-12-312018-12-312017-12-31
Value37437-814.2127
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0
Percentage of Assets0.50.1-1.30.2
Percentage of Assets srt:ParentCompany2.40.3-6.61.0

Treasury Stock Value

us-gaap:TreasuryStockValue

us-gaap:TreasuryStockValue


Treasury
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value3179317931793179317931793179307929792879277926282628252824282328222821282028192518251724162415241409130611982649254924492349229922242125203019301830170515301530127911331110754
Percentage of TreasuryStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.54.64.54.64.64.94.74.64.54.54.54.24.24.03.83.63.53.43.33.02.92.82.72.52.32.11.94.34.14.04.03.93.73.53.33.13.02.92.52.52.22.01.91.4

us-gaap:TreasuryStockValue us-gaap:ConsolidatedEntities

srt:ParentCompany


Treasury
Period End2020-12-312019-12-312018-12-312017-12-31
Value3179317927792428
Percentage of TreasuryStockValue100.0100.0100.0100.0
Percentage of Assets4.54.74.53.8
Percentage of Assets srt:ParentCompany20.822.422.418.1

Stock Issued During Period Value New Issues

us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueNewIssues

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value6.04.64.97.26.89.25.86.77.16.87.45.76.2-0.98.1125.54.69.84.35.16.48.03.74.89.5115.05.46.7104.16.35.73.54.1-0.39.3103.74.8124.33.64.116
Percentage of StockIssuedDuringPeriodValueNewIssues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stock
Period End2020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302013-12-312013-09-302012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.00.10.00.00.00.10.00.00.00.10.00.00.00.10.00.10.00.00.10.00.00.00.1
Percentage of StockIssuedDuringPeriodValueNewIssues0.01.40.00.00.01.40.00.00.01.00.00.00.0-33.30.01.00.00.00.80.00.00.00.6
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value706-162.0-681.3426632219484314425516453387396299283224334308361193268293292273326400279218379346322261183265425274349329405173314301283245386281
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues23.6-5.3-15.914.220.97.716.010.614.117.315.713.213.710.310.07.911.811.012.97.09.710.810.810.312.115.110.68.414.313.312.510.37.010.116.010.513.412.615.56.812.311.710.99.715.411.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-1095.35888220.6-1213.3122-187.6-198.7-642.0-365.2-342.714-720.9119-106.7-101.5-152.0-124.4-189.4331-742.0-110.5-258.2-102.1-119.1-233.6-198.0-126.6-21.4-540.6-110.7-104.0-9.3184-243.5-349.0-339.1-181.8-269.3-94.8-234.2188-230.8-413.8-179.2-249.9
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-36.619.219.20.0-40.24.3-6.2-6.7-21.3-12.2-11.90.5-24.94.1-3.8-3.6-5.4-4.4-6.812.0-26.9-4.1-9.5-3.8-4.4-8.8-7.5-4.9-0.8-20.7-4.3-4.1-0.47.0-9.2-13.3-13.0-7.0-10.3-3.7-9.17.3-8.9-16.4-7.1-9.8

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-49.6-61.8-47.9-488.8409-89.4-290.1-99.2214-183.5-230.5-286.8115-187.7-169.4-169.4-172.0-177.0-159.3-531.3447-175.0-30.9-184.2-168.7-184.9-39.7-143.0-321.9176-180.2-142.0-228.1-424.5-158.689-75.2-161.6-71.4-97.1-65.9-486.0-77.2165-177.9-51.6
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-1.7-2.0-1.1-16.313.5-3.1-9.6-3.47.1-6.1-8.0-9.84.0-6.5-6.0-6.0-6.1-6.3-5.7-19.216.2-6.4-1.1-6.9-6.2-7.0-1.5-5.5-12.16.7-7.0-5.6-8.8-16.2-6.03.4-2.9-6.2-2.7-3.8-2.6-19.0-3.06.6-7.1-2.0

Cash And Cash Equivalents Period Increase Decrease

us-gaap:CashAndCashEquivalentsPeriodIncreaseDecrease

us-gaap:CashAndCashEquivalentsPeriodIncreaseDecrease


Cash
Period End2021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value364-171.62537.116-1.3-31.9-120.2114-209.42317.3-46.910.06.612-5.9-26.97.83.6-13.338-18.441-51.435-17.93115-54.2242315-64.5-14.164-19.0143.0-25.0-2.729-19.9
Percentage of CashAndCashEquivalentsPeriodIncreaseDecrease100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues11.9-5.78.80.20.5-0.0-1.1-4.23.9-7.28.00.3-1.70.40.20.4-0.2-1.00.30.1-0.51.4-0.71.6-2.01.3-0.71.20.6-2.10.90.90.6-2.5-0.52.5-0.70.60.1-1.0-0.11.2-0.8

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

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2020-09-30
Value-61.8
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0
Percentage of Revenues-2.1

Deferred Income Tax Expense Benefit

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:DeferredIncomeTaxExpenseBenefit


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value29-21.7279231.5-16.5-23.015-3.2185.9-95.8-11.3-21.8-21.1-24.91043-19.812-4.342-10.00.0-10.449-115.0322567519.0-19.39.48.64.77658-298.733173959253.256
Percentage of DeferredIncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value706-162.0-681.3426632219484314425516453387396299283224334308361193268293292273326400279218379346322261183265425274349329405173314301283245386281
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues23.6-5.3-15.914.220.97.716.010.614.117.315.713.213.710.310.07.911.811.012.97.09.710.810.810.312.115.110.68.414.313.312.510.37.010.116.010.513.412.615.56.812.311.710.99.715.411.0

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value182153135231265161296242281280249-284.7285273266252245229248236236210226203224212-279.1221242228221205218212233230216213-425.4205229225225220209229199221267164
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues6.15.03.27.78.85.69.88.29.39.48.6-9.79.99.49.48.98.78.28.98.58.67.78.37.78.38.0-10.68.59.18.88.68.18.48.18.88.88.38.2-16.38.19.08.88.78.78.49.08.08.810.26.7

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

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value-4.6-4.3-4.1-3.9-3.7-3.9-3.1-4.1-3.6-3.6-4.3-4.4-4.3-4.3-3.3-3.2-3.2-3.2-2.6-2.6-2.5-2.6-1.9-1.9-1.8-2.0-42.5-0.7-0.6-0.7-0.81.7
Percentage of NetIncomeLoss-2.5-2.8-3.0-1.7-1.4-2.4-1.0-1.7-1.3-1.3-1.71.5-1.5-1.6-1.2-1.3-1.3-1.4-1.0-1.1-1.1-1.2-0.8-0.9-0.8-0.915.2-0.3-0.2-0.3-0.40.8
Percentage of Revenues-0.2-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.2-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-1.6-0.0-0.0-0.0-0.00.1
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value131339141514151813151312117.75.98.98.07.98.58.010327.99.26.77.55.9166.86.35.1
Percentage of NetIncomeLoss7.39.129.36.35.79.35.37.44.65.65.3-4.24.02.92.33.63.53.23.63.44.914.43.94.13.1-2.72.76.73.02.82.5
Percentage of Revenues0.40.50.90.50.50.50.50.60.40.50.50.40.40.30.20.30.30.30.30.30.41.20.30.30.30.30.20.60.30.20.2
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value-1.8-57.70.7-0.1-4.2-42.6-4.5-16.4-6.4-6.9-17.80.9-0.1-0.60.65.21.42.30.20.9-0.7-10.3-22.80.5-0.4-6.0-2.33.70.7-2.4-2.2-17.9
Percentage of NetIncomeLoss-1.0-37.70.5-0.0-1.6-26.5-1.5-6.8-2.3-2.5-7.1-0.3-0.0-0.20.22.10.61.00.10.4-0.3-4.9-10.10.2-0.2-2.80.81.70.3-1.0-1.0-8.7
Percentage of Revenues-0.1-1.90.0-0.0-0.1-1.5-0.1-0.6-0.2-0.2-0.60.0-0.0-0.00.00.20.00.10.00.0-0.0-0.4-0.80.0-0.0-0.2-0.10.10.0-0.1-0.1-0.7
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-03-31
Value182153135231265161296242281280249-284.7285273266252245229248236236210226203224212-290.4221242228221205218212233230216213-425.4205229225229
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0104.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues6.15.03.27.78.85.69.88.29.39.48.6-9.79.99.49.48.98.78.28.98.58.67.78.37.78.38.0-11.08.59.18.88.68.18.48.18.88.88.38.2-16.38.19.08.89.0
Percentage of Revenues us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-1095.35888220.6-1213.3122-187.6-198.7-642.0-365.2-342.714-720.9119-106.7-101.5-152.0-124.4-189.4331-742.0-110.5-258.2-102.1-119.1-233.6-198.0-126.6-21.4-540.6-110.7-104.0-9.3184-243.5-349.0-339.1-181.8-269.3-94.8-234.2188-230.8-413.8-179.2-249.9
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-36.619.219.20.0-40.24.3-6.2-6.7-21.3-12.2-11.90.5-24.94.1-3.8-3.6-5.4-4.4-6.812.0-26.9-4.1-9.5-3.8-4.4-8.8-7.5-4.9-0.8-20.7-4.3-4.1-0.47.0-9.2-13.3-13.0-7.0-10.3-3.7-9.17.3-8.9-16.4-7.1-9.8

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value263019223839434236284836302940162027241824172620213127283028
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-49.6-61.8-47.9-488.8409-89.4-290.1-99.2214-183.5-230.5-286.8115-187.7-169.4-169.4-172.0-177.0-159.3-531.3447-175.0-30.9-184.2-168.7-184.9-39.7-143.0-321.9176-180.2-142.0-228.1-424.5-158.689-75.2-161.6-71.4-97.1-65.9-486.0-77.2165-177.9-51.6
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-1.7-2.0-1.1-16.313.5-3.1-9.6-3.47.1-6.1-8.0-9.84.0-6.5-6.0-6.0-6.1-6.3-5.7-19.216.2-6.4-1.1-6.9-6.2-7.0-1.5-5.5-12.16.7-7.0-5.6-8.8-16.2-6.03.4-2.9-6.2-2.7-3.8-2.6-19.0-3.06.6-7.1-2.0

Proceeds From Issuance Of Long Term Debt

us-gaap:ProceedsFromIssuanceOfLongTermDebt

us-gaap:ProceedsFromIssuanceOfLongTermDebt


Proceeds
Period End2020-12-312020-09-302019-12-312019-09-302018-12-312018-09-302017-12-312017-09-302016-12-312016-09-302015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-312010-12-31
Value0.00.00.04460.00.00.00.00.00.02710.00.00.00.00.00.03470.00.00.00.0
Percentage of ProceedsFromIssuanceOfLongTermDebt0.00.00.0100.00.00.00.00.00.00.0100.00.00.00.00.00.00.0100.00.00.00.00.0

Repayments Of Long Term Debt

us-gaap:RepaymentsOfLongTermDebt

us-gaap:RepaymentsOfLongTermDebt


Repayments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3515151511135115151515151518151537510131631419296.45.216015151515712411161717172524155.02433
Percentage of RepaymentsOfLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Payments Of Dividends

us-gaap:PaymentsOfDividends

us-gaap:PaymentsOfDividends


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value58585858585758595555555650525151454646464445454541424142373837383435353630313032282929302727
Percentage of PaymentsOfDividends100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber

us-gaap:EmployeeStockOption


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value40000.074000.0105000.0124000.0517000.0759000.0999000.01395000.01691000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:EmployeeStockOption


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value24.2524.0924.4123.8623.9723.0220.2321.1720.98
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Liabilities

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxLiabilities


Deferred
Period End2020-12-312019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value4169564370.00.08512819923124718813035831523391734117322544184063001479958903921837
Percentage of DeferredTaxLiabilities100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Net

us-gaap:DeferredTaxAssetsNet

us-gaap:DeferredTaxAssetsNet


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value153613478471088161613192178
Percentage of DeferredTaxAssetsNet100.0100.0100.0100.0100.0100.0100.0

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

us-gaap:UnrecognizedTaxBenefits


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value2192412621.41.50.819181786138146149161
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Valuation Allowance

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:DeferredTaxAssetsValuationAllowance


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value14281820171.30.0
Percentage of DeferredTaxAssetsValuationAllowance100.0100.0100.0100.0100.0100.00.0

Proceeds From Repayments Of Short Term Debt

us-gaap:ProceedsFromRepaymentsOfShortTermDebt

us-gaap:ProceedsFromRepaymentsOfShortTermDebt


Proceeds
Period End2020-12-312020-09-302014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value0.0-894.112-4.2-14.9-64.0-13.1-82.7-219.5-2.5-8.89459-30.1
Percentage of ProceedsFromRepaymentsOfShortTermDebt0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

unm:AdjustedOperatingRevenue us-gaap:ConsolidationItems

unm:AdjustedOperatingRevenue

us-gaap:OperatingSegments


Adjusted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value299229872968299129873015302529863024298629222921289229012827280928132795
Percentage of AdjustedOperatingRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

unm:AdjustedOperatingRevenue us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, unm:ClosedBlock


Adjusted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value555567623618590598628623630628630634634630639638641643
Percentage of AdjustedOperatingRevenue18.619.021.020.719.819.920.820.920.821.021.621.721.921.722.622.722.823.0

us-gaap:OperatingSegments, unm:ColonialLife


Adjusted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value461464456463475472463457458456447437435435419415413409
Percentage of AdjustedOperatingRevenue15.415.515.415.515.915.715.315.315.215.315.315.015.115.014.814.814.714.7

us-gaap:OperatingSegments, unm:UnumInternational


Adjusted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value219200191191183191194176203178183164171167
Percentage of AdjustedOperatingRevenue7.36.76.46.46.16.36.45.96.76.06.35.65.95.8

us-gaap:OperatingSegments, unm:UnumUs


Adjusted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value174717451695171617341747173417201725171816521677164116621594158815931591
Percentage of AdjustedOperatingRevenue58.458.457.157.458.158.057.357.657.157.556.657.456.757.356.456.556.656.9

us-gaap:OperatingSegments, us-gaap:CorporateAndOther


Adjusted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value8.39.41.31.62.95.15.67.76.04.38.17.99.56.78.66.75.73.3
Percentage of AdjustedOperatingRevenue0.30.30.00.10.10.20.20.30.20.10.30.30.30.20.30.20.20.1

unm:AmortizationOfPrepaidReinsurancePremium unm:SignificantTransaction

unm:AmortizationOfPrepaidReinsurancePremium

unm:ClosedBlockIndividualDisabilityReinsuranceTransaction


Amortization
Period End2021-06-302021-03-31
Value1920
Percentage of AmortizationOfPrepaidReinsurancePremium100.0100.0

unm:AmortizationOfPrepaidReinsurancePremium us-gaap:ConsolidationItems, unm:SignificantTransaction

us-gaap:OperatingSegments, unm:ClosedBlockIndividualDisabilityReinsuranceTransaction


Amortization
Period End2021-06-302021-03-31
Value-19.7-20.0
Percentage of AmortizationOfPrepaidReinsurancePremium-100.0-100.0

unm:CashReceivedRelatedToActiveLifeVolatilityCoverAgreementReinsuranceAgreement

unm:CashReceivedRelatedToActiveLifeVolatilityCoverAgreementReinsuranceAgreement


Cash
Period End2021-06-302021-03-31
Value0.017
Percentage of CashReceivedRelatedToActiveLifeVolatilityCoverAgreementReinsuranceAgreement0.0100.0

unm:ChangeInAdjustmentToDeferredAcquisitionCostsAndReservesForFuturePolicyAndContractBenefitsNetOfReinsuranceAndNetOfTaxExpenseBenefit

unm:ChangeInAdjustmentToDeferredAcquisitionCostsAndReservesForFuturePolicyAndContractBenefitsNetOfReinsuranceAndNetOfTaxExpenseBenefit


Change
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value-625.61256302-340.0-1939.91446416-665.2-760.7-932.8360-260.2503807-55.0-66.9-298.1-134.5974-135.1-699.2-566.0681215964-226.2-480.5113-396.8-520.4-45.428392819723-430.1-420.3166
Percentage of ChangeInAdjustmentToDeferredAcquisitionCostsAndReservesForFuturePolicyAndContractBenefitsNetOfReinsuranceAndNetOfTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

unm:ChangeInAdjustmentToDeferredAcquisitionCostsAndReservesForFuturePolicyAndContractBenefitsNetOfReinsuranceTaxExpense

unm:ChangeInAdjustmentToDeferredAcquisitionCostsAndReservesForFuturePolicyAndContractBenefitsNetOfReinsuranceTaxExpense


Change
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value-165.833181-89.9-510.6380107-172.6-201.2-245.595-69.8-133.821216-31.816267506-51.7-367.6-287.71357113507-120.3-248.667-211.7-272.0-35.516950010818-213.5-227.797
Percentage of ChangeInAdjustmentToDeferredAcquisitionCostsAndReservesForFuturePolicyAndContractBenefitsNetOfReinsuranceTaxExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

unm:ChangeInBenefitReservesAndTransactionCosts us-gaap:ConsolidationItems, unm:SignificantTransaction

unm:ChangeInBenefitReservesAndTransactionCosts

us-gaap:OperatingSegments, unm:ClosedBlockIndividualDisabilityReinsuranceTransaction


Change
Period End2021-06-302021-03-31
Value0.0-139.3
Percentage of ChangeInBenefitReservesAndTransactionCosts0.0100.0

unm:CostRelatedToEarlyRetirementOfDebt

unm:CostRelatedToEarlyRetirementOfDebt


Cost
Period End2021-06-302019-12-312019-09-30
Value672.125
Percentage of CostRelatedToEarlyRetirementOfDebt100.0100.0100.0

unm:CostsRelatedToOrganizationalDesignUpdate us-gaap:ConsolidationItems

unm:CostsRelatedToOrganizationalDesignUpdate

us-gaap:OperatingSegments


Costs
Period End2020-12-312020-09-30
Value0.023
Percentage of CostsRelatedToOrganizationalDesignUpdate0.0100.0

unm:DebtSecuritiesAvailableForSaleAllowanceForCreditLossPeriodIncreaseDecreaseAndOtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet

unm:DebtSecuritiesAvailableForSaleAllowanceForCreditLossPeriodIncreaseDecreaseAndOtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet


Debt
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value8.3-5.70.05.4534.5200.0
Percentage of DebtSecuritiesAvailableForSaleAllowanceForCreditLossPeriodIncreaseDecreaseAndOtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet100.0100.00.0100.0100.0100.0100.00.0

unm:FinancingReceivablesAllowanceForCreditLossesPeriodIncreaseDecreaseCommercialMortgageLoansAndUnfundedLoanCommitments

unm:FinancingReceivablesAllowanceForCreditLossesPeriodIncreaseDecreaseCommercialMortgageLoansAndUnfundedLoanCommitments


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-06-30
Value100000.0-1700000.0-1600000.01600000.02000000.02600000.00
Percentage of FinancingReceivablesAllowanceForCreditLossesPeriodIncreaseDecreaseCommercialMortgageLoansAndUnfundedLoanCommitments100.0100.0100.0100.0100.0100.00.0

unm:IncreaseInBenefitsAndChangeInReservesForFutureBenefits unm:PhaseOfSignificantTransaction, unm:SignificantTransaction

unm:IncreaseInBenefitsAndChangeInReservesForFutureBenefits

unm:Phase2, unm:ClosedBlockIndividualDisabilityReinsuranceTransaction


Increase
Period End2021-06-302021-03-31
Value0.0133
Percentage of IncreaseInBenefitsAndChangeInReservesForFutureBenefits0.0100.0

unm:InvestmentIncomeOnPfaAssets

unm:InvestmentIncomeOnPfaAssets


Investment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value3.03.13.13.13.03.23.13.23.23.33.33.43.43.43.53.53.53.63.53.53.63.63.63.63.73.73.83.73.83.83.93.93.94.04.04.13.94.1
Percentage of InvestmentIncomeOnPfaAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

unm:NetCashPaidInRelationToReinsuranceAgreement

unm:NetCashPaidInRelationToReinsuranceAgreement


Net
Period End2021-06-302021-03-31
Value913-456.8
Percentage of NetCashPaidInRelationToReinsuranceAgreement100.0100.0

unm:NotionalAmountOfDerivativesAdditions

unm:NotionalAmountOfDerivativesAdditions


Notional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value36110124430.052493806755194327465124160.0303.50.00.00.067290.0402680.010.017710.010.0945.027521350.0151219
Percentage of NotionalAmountOfDerivativesAdditions100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.00.00.0100.0100.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0

unm:NotionalAmountOfDerivativesAdditions unm:EquityDerivativeContractType, us-gaap:DerivativeInstrumentRisk

us-gaap:TotalReturnSwap, us-gaap:EquityContract


Notional
Period End2021-06-302021-03-31
Value5.375
Percentage of NotionalAmountOfDerivativesAdditions1.574.2

unm:NotionalAmountOfDerivativesAdditions unm:InterestRateDerivativesContractType, us-gaap:DerivativeInstrumentRisk

unm:DerivativeFinancialInstrumentsReceiveFixedPayFixed, us-gaap:InterestRateSwap


Notional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value612621400.0524922574219316.519260.00.00.0
Percentage of NotionalAmountOfDerivativesAdditions17.025.885.193.70.0100.0100.05.884.476.6101.074.024.042.651.40.00.00.0

unm:NotionalAmountOfDerivativesAdditions us-gaap:DerivativeInstrumentRisk

us-gaap:ForwardContracts


Notional
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-312014-09-302013-09-30
Value2943.72.70.00.00.035810130.00.020262524160.0300.00.00.00.0672740180.0
Percentage of NotionalAmountOfDerivativesAdditions81.514.96.30.00.00.094.215.623.40.00.076.057.448.6100.0100.00.0100.00.00.00.00.0100.093.1100.06.70.0

unm:NotionalAmountOfDerivativesForeignCurrency

unm:NotionalAmountOfDerivativesForeignCurrency


Notional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0200000.0600000.0400000.00-700000.0800000.0-300000.0-700000.0200000.0
Percentage of NotionalAmountOfDerivativesForeignCurrency0.0100.0100.0100.00.0100.0100.0100.0100.0100.0

unm:NotionalAmountOfDerivativesForeignCurrency us-gaap:CreditDerivativesByContractType, us-gaap:DerivativeInstrumentRisk

us-gaap:CreditDefaultSwap, us-gaap:CreditRiskContract


Notional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0200000.0600000.0400000.00-700000.0800000.0-300000.0-300000.0200000.0
Percentage of NotionalAmountOfDerivativesForeignCurrency0.0100.0100.0100.00.0100.0100.0100.042.9100.0

unm:NotionalAmountOfDerivativesTerminations

unm:NotionalAmountOfDerivativesTerminations


Notional
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value2882.72530.01.3992695546165510070581272330643575.8242295.5688.954211417357751828571758385558985
Percentage of NotionalAmountOfDerivativesTerminations100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

unm:NotionalAmountOfDerivativesTerminations unm:InterestRateDerivativesContractType, us-gaap:DerivativeInstrumentRisk

unm:DerivativeFinancialInstrumentsReceiveFixedPayFixed, us-gaap:InterestRateSwap


Notional
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value100.63.30.00.05.91332461634250.033484.520
Percentage of NotionalAmountOfDerivativesTerminations3.522.21.30.00.05.95.058.2100.0100.062.725.40.056.938.218.866.8

unm:DerivativeFinancialInstrumentsReceiveFixedPayVariable, us-gaap:InterestRateSwap


Notional
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.02500.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of NotionalAmountOfDerivativesTerminations0.098.70.00.00.00.00.00.00.00.00.00.00.00.00.00.0

unm:NotionalAmountOfDerivativesTerminations us-gaap:DerivativeInstrumentRisk

us-gaap:ForwardContracts


Notional
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-312014-09-302013-09-30
Value2782.10.00.01.394256230.00.020260.025241610.0200.00.00.0670.02740180.0
Percentage of NotionalAmountOfDerivativesTerminations96.577.80.00.0100.094.195.041.80.00.037.326.70.043.119.466.932.930.80.00.00.029.10.039.273.882.60.0

unm:OtherComprehensiveIncomeLossNetGainOnHedgesAdjustmentNetOfTax

unm:OtherComprehensiveIncomeLossNetGainOnHedgesAdjustmentNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.4-20.7-60.9-27.5-24.422-16.5-13.7-12.1-20.5
Percentage of OtherComprehensiveIncomeLossNetGainOnHedgesAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

unm:OtherComprehensiveIncomeLossNetGainOnHedgesAdjustmentTax

unm:OtherComprehensiveIncomeLossNetGainOnHedgesAdjustmentTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value10800000.0-5400000.0-16600000.0-6700000.07100000.06600000.0-4700000.0-3700000.02800000.0-5800000.0
Percentage of OtherComprehensiveIncomeLossNetGainOnHedgesAdjustmentTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

unm:OtherInvestmentsGrossRealizedGains

unm:OtherInvestmentsGrossRealizedGains


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value1.02.50.70.90.00.30.10.63.00.90.30.10.10.06.00.81.90.71.50.22.01.82.05.17.81.19.61.82.47.41.05.61.47.62.72.30.00.00.01.64.31.21.00.31.6
Percentage of OtherInvestmentsGrossRealizedGains100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.0100.0100.0100.0100.0100.0

unm:OtherInvestmentsGrossRealizedLosses

unm:OtherInvestmentsGrossRealizedLosses


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-312011-09-302011-06-302010-12-312010-09-302010-06-30
Value-100000.0200000.00200000.0200000.000100000.00000000200000.000400000.0300000.0100000.0000100000.0100000.00600000.000004300000.000300000.001300000.000300000.0
Percentage of OtherInvestmentsGrossRealizedLosses100.0100.00.0100.0100.00.00.0100.00.00.00.00.00.00.00.0100.00.00.0100.0100.0100.00.00.00.0100.0100.00.0100.00.00.00.00.0100.00.00.0100.00.0100.00.00.0100.0

unm:ReservesCededPursuantToReinsuranceTransaction

unm:ReservesCededPursuantToReinsuranceTransaction


Reserves
Period End2021-06-302021-03-31
Value0.0990
Percentage of ReservesCededPursuantToReinsuranceTransaction0.0100.0

unm:TaxBenefitsfromLowIncomeHousingInvestments

unm:TaxBenefitsfromLowIncomeHousingInvestments


Tax
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value1.71.72.82.92.82.83.33.43.32.63.33.33.33.44.74.64.74.64.74.64.64.74.64.54.74.74.64.74.74.6
Percentage of TaxBenefitsfromLowIncomeHousingInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount

us-gaap:AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount


Affordable
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value5.45.48.3000000000000048.38.38.39.59.59.49.4
Percentage of AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization

us-gaap:AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value3.73.75.5000000000000025.45.55.56.26.16.16.8
Percentage of AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleSecuritiesGrossRealizedGains

us-gaap:AvailableForSaleSecuritiesGrossRealizedGains


Available
Period End2021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value713.61.40.4117.93.30.34.82.62.05.24.31.92.44.91.610164.0124.92.54.23.21.00.92.34.32.66.6154.63.55.941148.79.5256.011
Percentage of AvailableForSaleSecuritiesGrossRealizedGains100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleSecuritiesGrossRealizedLosses

us-gaap:AvailableForSaleSecuritiesGrossRealizedLosses


Available
Period End2021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value1.14.10.72.15.7167.96.93.83.11.40.91.21.21.13.20.44.09.6134.41.95.70.60.41.15.45.6331.65.5112.31.75.01.95.49.86.9154.17.2
Percentage of AvailableForSaleSecuritiesGrossRealizedLosses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths

us-gaap:CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths


Cash
Period End2021-06-302021-03-312020-12-31
Value-1.156-12.5
Percentage of CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths100.0100.0100.0

us-gaap:CurrentIncomeTaxExpenseBenefit

us-gaap:CurrentIncomeTaxExpenseBenefit


Current
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value5067-289.9457057104427454542.78089991391055614384107511009510540-63.858782933691128180853.6371954916550809574
Percentage of CurrentIncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentPeriodicPaymentPrincipal dei:LegalEntity

us-gaap:DebtInstrumentPeriodicPaymentPrincipal

unm:NorthwindHoldingsLlc


Debt
Period End2020-12-31
Value0.0
Percentage of DebtInstrumentPeriodicPaymentPrincipal0.0

us-gaap:DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotPreviouslyRecorded us-gaap:FinancialInstrument

us-gaap:DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotPreviouslyRecorded

us-gaap:AllOtherCorporateBonds


Debt
Period End2020-12-312020-09-302020-06-302020-03-31
Value-11.10.07.648
Percentage of DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotPreviouslyRecorded100.00.0100.0100.0

us-gaap:DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotToSellBeforeRecoveryCreditLossPreviouslyRecordedExpenseReversal us-gaap:FinancialInstrument

us-gaap:DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotToSellBeforeRecoveryCreditLossPreviouslyRecordedExpenseReversal

us-gaap:AllOtherCorporateBonds


Debt
Period End2020-12-312020-09-302020-06-30
Value0-16900000.0-20800000.0
Percentage of DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotToSellBeforeRecoveryCreditLossPreviouslyRecordedExpenseReversal0.0100.0100.0

us-gaap:DebtSecuritiesAvailableForSaleAllowanceForCreditLossSecuritiesSold us-gaap:FinancialInstrument

us-gaap:DebtSecuritiesAvailableForSaleAllowanceForCreditLossSecuritiesSold

us-gaap:AllOtherCorporateBonds


Debt
Period End2021-06-30
Value-7300000.0
Percentage of DebtSecuritiesAvailableForSaleAllowanceForCreditLossSecuritiesSold100.0

us-gaap:DebtSecuritiesAvailableForSaleChangeInPresentValueExpenseReversal us-gaap:FinancialInstrument

us-gaap:DebtSecuritiesAvailableForSaleChangeInPresentValueExpenseReversal

us-gaap:AllOtherCorporateBonds


Debt
Period End2021-06-302021-03-312020-09-302020-06-30
Value0.00.5-0.4-5.0
Percentage of DebtSecuritiesAvailableForSaleChangeInPresentValueExpenseReversal0.0100.0100.0100.0

us-gaap:DebtSecuritiesAvailableForSaleRealizedGain

us-gaap:DebtSecuritiesAvailableForSaleRealizedGain


Debt
Period End2021-06-302020-09-302020-06-302019-09-30
Value2.33.33.611
Percentage of DebtSecuritiesAvailableForSaleRealizedGain100.0100.0100.0100.0

us-gaap:DebtSecuritiesAvailableForSaleRealizedLoss

us-gaap:DebtSecuritiesAvailableForSaleRealizedLoss


Debt
Period End2021-06-302020-09-302020-06-302019-09-30
Value2.52.84.15.7
Percentage of DebtSecuritiesAvailableForSaleRealizedLoss100.0100.0100.0100.0

us-gaap:DeferredPolicyAcquisitionCostsAdditions

us-gaap:DeferredPolicyAcquisitionCostsAdditions


Deferred
Period End2020-09-302020-06-302019-09-302019-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-134.9-149.9-160.6-170.3-129.0-117.5-117.8-113.3-118.2-119.7-111.0-119.2-117.4-156.2-155.6-158.21581063-150.9-149.7154
Percentage of DeferredPolicyAcquisitionCostsAdditions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredPolicyAcquisitionCostsPeriodIncreaseDecrease

us-gaap:DeferredPolicyAcquisitionCostsPeriodIncreaseDecrease


Deferred
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value-77.9359.2-14.2553-160.6183.129-166.82517343114202929202037221610341918102219
Percentage of DeferredPolicyAcquisitionCostsPeriodIncreaseDecrease100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses

country:GB, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-0.4-0.3-0.3-0.2-0.3-0.3-0.2-0.3-0.2-0.2-0.1-0.2
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-5.4-5.3-4.7-4.7-4.6-4.7-5.1-5.0-5.0-5.1-5.4-5.4
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses1350.01766.71566.72350.01533.31566.72550.01666.72500.02550.05400.02700.0

us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value0-100000.00-100000.00-100000.00-100000.00-100000.00-100000.00-100000.0-100000.0-100000.0-100000.0-100000.0-100000.00-100000.0
Percentage of DefinedBenefitPlanAmortizationOfPriorServiceCostCredit0.0100.00.0100.00.0100.00.0100.00.0100.00.0100.00.0100.0100.0100.0100.0100.0100.00.0100.0

us-gaap:DefinedBenefitPlanBenefitObligationBenefitsPaid unm:AnnuityContract, us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanBenefitObligationBenefitsPaid

unm:GroupAnnuityContact, country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-31
Value88
Percentage of DefinedBenefitPlanBenefitObligationBenefitsPaid100.0

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets

country:GB, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value2.52.52.42.42.32.42.32.12.32.21.92.3
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value252526262626242424242626
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets1004.01008.01112.51112.51156.51112.51082.61181.01082.61127.31373.71134.8

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value0.20.10.10.10.20.10.20.10.20.10.20.10.20.10.20.10.10.20.10.20.1
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets8.04.04.24.28.74.28.74.88.74.510.54.30.00.00.00.00.00.00.00.00.0

us-gaap:DefinedBenefitPlanInterestCost us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanInterestCost

country:GB, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value1.01.11.21.31.21.21.61.41.61.51.31.5
Percentage of DefinedBenefitPlanInterestCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value161618181818202020202019
Percentage of DefinedBenefitPlanInterestCost1610.01481.81525.01400.01525.01516.71300.01485.71306.21386.71538.51326.7

us-gaap:DefinedBenefitPlanInterestCost us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value0.70.80.99999999999999961.01.11.01.31.41.31.31.21.21.31.21.51.41.51.51.81.81.8
Percentage of DefinedBenefitPlanInterestCost70.072.783.376.991.783.381.2100.081.286.792.380.00.00.00.00.00.00.00.00.00.0

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost

country:GB, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-1.1-1.1-0.8-0.9-0.8-0.9-0.5-0.4-0.5-0.5-0.5-0.6
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-1.2-1.2-0.9-1.0-1.0-1.03.73.83.73.81.51.5
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost109.1109.1112.5111.1125.0111.1-740.0-950.0-740.0-760.0-300.0-250.0

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value0.50.60.90.80.90.80.50.50.50.51.01.01.11.01.21.21.31.21.61.62.5
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost-45.5-54.5-112.5-88.9-112.5-88.9-100.0-125.0-100.0-100.0-200.0-166.70.00.00.00.00.00.00.00.00.0

us-gaap:DefinedBenefitPlanServiceCost us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanServiceCost

country:US, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value2.42.42.69999999999999932.82.72.82.72.82.72.72.22.3
Percentage of DefinedBenefitPlanServiceCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DepreciationAmortizationAndAccretionNet

us-gaap:DepreciationAmortizationAndAccretionNet


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value30292829272827272727262524242525262625252525252525232123222021202121202220202020201919191818
Percentage of DepreciationAmortizationAndAccretionNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeGainLossOnDerivativeNet

us-gaap:DerivativeGainLossOnDerivativeNet


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value-0.11.7-0.2-0.6-1.0-0.70.6-0.1-0.90.3-0.60.20.00.70.20.2-0.3-0.22.00.1-1.1-2.537-1.00.8-1.1-0.6-0.712-0.4-0.4-1.0-0.2-0.30.00.00.00.0
Percentage of DerivativeGainLossOnDerivativeNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

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

us-gaap:ForeignExchangeContract, us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument, us-gaap:GainLossOnInvestmentsMember1


Derivative
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.0-0.10.00.00.4-0.71.00.80.20.40.90.02.55.20.31.2
Percentage of DerivativeGainLossOnDerivativeNet-0.016.7-0.0-0.066.7700.0-111.1266.7-33.3200.00.00.01250.02600.0-100.0-600.0

us-gaap:ForeignExchangeContract, us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument, us-gaap:InvestmentIncome


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-0.6-0.3-0.4-0.8-0.4-0.91.10.30.40.10.10.30.20.30.30.50.20.2
Percentage of DerivativeGainLossOnDerivativeNet600.0-17.6200.0133.340.0128.6183.3-300.0-44.433.3-16.7150.00.042.9150.0250.0-66.7-100.0

us-gaap:ForeignExchangeContract, us-gaap:FairValueHedging, us-gaap:DesignatedAsHedgingInstrument, us-gaap:GainLossOnInvestmentsMember1


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value1.1-9.5169.710-13.27.8-4.81.1-0.3-1.0-0.3-1.1-0.30.00.00.0
Percentage of DerivativeGainLossOnDerivativeNet-1100.0-558.8-8250.0-1616.7-1030.01885.71300.04800.0-122.2-100.0166.7-150.00.0-42.90.0-0.0-0.0

us-gaap:ForeignExchangeContract, us-gaap:FairValueHedging, us-gaap:DesignatedAsHedgingInstrument, us-gaap:InvestmentIncome


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value-1.2-1.0-0.80.1-1.3-0.8-0.7-0.5-0.4-0.3-0.3-0.1-0.10.00.00.00.0
Percentage of DerivativeGainLossOnDerivativeNet1200.0-58.8400.0-16.7130.0114.3-116.7500.044.4-100.050.0-50.00.00.00.0-0.0-0.0

us-gaap:InterestRateSwap, us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument, us-gaap:GainLossOnInvestmentsMember1


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.0-1.8-31.60.0-0.40.00.0-5.30.0-4.10.00.00.20.1-0.20.00.00.0
Percentage of DerivativeGainLossOnDerivativeNet-0.0-105.915800.0-0.040.0-0.00.05300.0-0.0-1366.7-0.00.00.014.3-100.00.0-0.0-0.0

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


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-0.1-0.10.0-0.4-0.7-0.6-0.6-0.6-0.6-0.6-0.6-0.6-0.5-0.6-0.6-0.5-0.6-0.5
Percentage of DerivativeGainLossOnDerivativeNet100.0-5.9-0.066.770.085.7-100.0600.066.7-200.0100.0-300.00.0-85.7-300.0-250.0200.0250.0

us-gaap:InterestRateSwap, us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument, us-gaap:InvestmentIncome


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-16.5-15.5-18.4-18.6-19.7-19.2-19.9-18.8-17.9-17.7-18.0-16.7-16.5-15.9-15.1-15.6-15.1-14.6
Percentage of DerivativeGainLossOnDerivativeNet16500.0-911.89200.03100.01970.02742.9-3316.718800.01988.9-5900.03000.0-8350.00.0-2271.4-7550.0-7800.05033.37300.0

us-gaap:InterestRateSwap, us-gaap:FairValueHedging, us-gaap:DesignatedAsHedgingInstrument, us-gaap:GainLossOnInvestmentsMember1


Derivative
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.00.60.3-1.5-0.3-0.6-2.1-1.5-2.10.00.31.91.4-0.5-2.0-0.6
Percentage of DerivativeGainLossOnDerivativeNet-0.0-100.0-30.0214.3-50.0600.0233.3-500.0350.00.00.0271.4700.0-250.0666.7300.0

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


Derivative
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.00.60.4-0.1-0.4-0.6-0.7-0.8-0.6-0.6-0.5-0.10.00.10.20.3
Percentage of DerivativeGainLossOnDerivativeNet-0.0-100.0-40.014.3-66.7600.077.8-266.7100.0-300.00.0-14.30.050.0-66.7-150.0

us-gaap:DerivativeGainLossOnDerivativeNet us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation

us-gaap:CreditDefaultSwap, us-gaap:Nondesignated


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value-0.1-0.1-0.1-0.3-0.90.80.30.2-0.1-0.50.0-0.30.0-0.10.1-0.1-0.3-0.2-0.3-0.40.00.60.1-0.3-0.30.40.1-0.4-0.4-0.4-1.0
Percentage of DerivativeGainLossOnDerivativeNet100.0-5.950.050.090.0-114.350.0-200.011.1-166.7-0.0-150.00.0-50.050.033.3150.0-10.0-300.036.4-0.01.6-10.0-37.527.3-66.7-14.3-3.1100.0100.0100.0

us-gaap:EmbeddedDerivativeFinancialInstruments, us-gaap:Nondesignated


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value1.716131441-86.914-11.1-0.85.5-17.36.1-2.39.36.76.28.6269.710-5.6-4.5-27.3-2.0-3.9-15.3-2.3128.512-0.3
Percentage of DerivativeGainLossOnDerivativeNet-1700.0994.1-6950.0-2350.0-4190.012414.32450.011100.088.91833.32883.33050.00.04650.03350.0-2066.7-4300.01330.09700.0-927.3224.0-12.22730.0-250.0354.52550.0328.697.6-2125.0-3050.030.0

us-gaap:ForeignExchangeContract, us-gaap:Nondesignated


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value0.11.8-0.1-0.3-0.1-1.50.3-0.2-0.80.7-0.60.50.30.30.1-0.20.21.90.3-0.7-1.30.5-1.11.1-0.8-1.0-0.80.00.00.00.0
Percentage of DerivativeGainLossOnDerivativeNet-100.0105.950.050.010.0214.350.0200.088.9233.3100.0250.00.0150.050.066.7-100.095.0300.063.652.01.4110.0137.572.7166.7114.30.0-0.0-0.0-0.0

us-gaap:TotalReturnSwap, us-gaap:Nondesignated


Derivative
Period End2021-06-302021-03-31
Value-5.01.3
Percentage of DerivativeGainLossOnDerivativeNet5000.076.5

us-gaap:DerivativeGainLossOnDerivativeNet us-gaap:HedgingDesignation

us-gaap:Nondesignated


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value1.718131340-87.615-11.1-1.75.7-17.96.3-2.39.56.95.88.5289.89.1-6.9-3.4-28.3-1.2-5.0-15.9-3.0128.111-1.3
Percentage of DerivativeGainLossOnDerivativeNet-1700.01094.1-6850.0-2250.0-4090.012514.32550.011100.0188.91900.02983.33150.00.04750.03450.0-1933.3-4250.01430.09800.0-827.3276.0-9.22830.0-150.0454.52650.0428.694.5-2025.0-2950.0130.0

us-gaap:DividendsCash us-gaap:StatementEquityComponents

us-gaap:DividendsCash

us-gaap:RetainedEarnings


Dividends
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value58595858585859595557565650525151454646464445454541424142373837383435353630313032282929302727
Percentage of DividendsCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmbeddedDerivativeGainLossOnEmbeddedDerivativeNet

us-gaap:EmbeddedDerivativeGainLossOnEmbeddedDerivativeNet


Embedded
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1.716131441-86.914-11.1-0.85.5-17.36.1-2.3-1.79.36.76.28.6269.710-5.6-4.5-27.3-2.0-3.9-15.3-2.3128.512-0.3126.42319-3.312-15.0-33.7-4.814241.6-23.618
Percentage of EmbeddedDerivativeGainLossOnEmbeddedDerivativeNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueAssetLiabilityRecurringBasisStillHeldUnrealizedGainLossOci us-gaap:FairValueByAssetClass

us-gaap:FairValueAssetLiabilityRecurringBasisStillHeldUnrealizedGainLossOci

us-gaap:DebtSecurities


Fair
Period End2021-06-302020-09-302020-06-30
Value-9.712-28.0
Percentage of FairValueAssetLiabilityRecurringBasisStillHeldUnrealizedGainLossOci100.0100.0100.0

us-gaap:FairValueAssetRecurringBasisStillHeldUnrealizedGainLossOci us-gaap:FairValueByAssetClass

us-gaap:FairValueAssetRecurringBasisStillHeldUnrealizedGainLossOci

us-gaap:AssetBackedSecurities


Fair
Period End2021-06-302021-03-312020-09-302020-06-302020-03-31
Value-15.5-34.5-0.9-1.8-0.2
Percentage of FairValueAssetRecurringBasisStillHeldUnrealizedGainLossOci100.0100.0100.0100.0100.0

us-gaap:CorporateDebtSecurities


Fair
Period End2021-06-302021-03-312020-09-302020-06-302020-03-31
Value3.7-13.810-22.6-2.2
Percentage of FairValueAssetRecurringBasisStillHeldUnrealizedGainLossOci-23.940.0-1133.31255.61100.0

us-gaap:DebtSecurities


Fair
Period End2021-06-302021-03-312020-09-302020-06-302020-03-31
Value16-53.0-65.183-0.4
Percentage of FairValueAssetRecurringBasisStillHeldUnrealizedGainLossOci-107.7153.67233.3-4633.3200.0

us-gaap:ForeignGovernmentDebtSecurities


Fair
Period End2021-06-302021-03-312020-09-302020-06-302020-03-31
Value-0.2-0.1-0.2-1.1-0.9
Percentage of FairValueAssetRecurringBasisStillHeldUnrealizedGainLossOci1.30.322.261.1450.0

us-gaap:PublicUtilityBonds


Fair
Period End2021-06-302021-03-312020-09-302020-06-302020-03-31
Value2.3-4.62.9-7.00.0
Percentage of FairValueAssetRecurringBasisStillHeldUnrealizedGainLossOci-14.813.3-322.2388.9-0.0

us-gaap:USStatesAndPoliticalSubdivisions


Fair
Period End2020-09-302020-06-302020-03-31
Value0.14.52.9
Percentage of FairValueAssetRecurringBasisStillHeldUnrealizedGainLossOci-11.1-250.0-1450.0

us-gaap:FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss us-gaap:DerivativeInstrumentRisk

us-gaap:FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss

us-gaap:EmbeddedDerivativeFinancialInstruments


Fair
Period End2021-06-302021-03-312020-09-302020-06-302020-03-31
Value-1.716-14.1-41.9-86.9
Percentage of FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss100.0100.0100.0100.0100.0

us-gaap:FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss us-gaap:FairValueByAssetClass

us-gaap:EquitySecurities


Fair
Period End2020-09-302020-06-30
Value-0.10.1
Percentage of FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss0.7-0.2

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1 us-gaap:FairValueByAssetClass

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1

us-gaap:EquitySecurities


Fair
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value0.1-0.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.08.40.00.02.1
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1100.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0100.00.00.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss us-gaap:FairValueByAssetClass

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss

us-gaap:AssetBackedSecurities


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-09-302018-06-302018-03-312014-12-312014-09-302014-06-302014-03-31
Value-15.5-34.5-1.2-1.0-3.9-0.8-1.5-0.80.00.00.0-0.20.00.30.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.00.0100.00.0

us-gaap:CorporateDebtSecurities


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value3.7-13.8221118-50.6-18.62.71613-68.6-6.9-16.1-22.1-22.3145.613-45.88.01915-77.4-13.9-45.3122.4-2.71726
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss-23.940.0-1875.0-1140.0-482.16325.01240.0-337.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0-1200.00.05833.30.0

us-gaap:DebtSecurities


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-9.7-53.0191324-49.8-17.25.51421-63.2-9.6-17.5-30.6-21.5136.414-53.14.82321-83.4-16.5-56.11911-0.62638
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss62.6153.6-1608.3-1350.0-625.66225.01146.7-687.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0-5900.00.08933.30.0

us-gaap:ForeignGovernmentDebtSecurities


Fair
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-0.2-0.1-0.31.1-0.90.10.00.30.2-0.20.1-0.8-0.40.00.00.01.0-0.4-1.50.7-0.20.8-0.20.81.9
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss1.30.330.0-28.2112.5-6.7-0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0-400.00.0266.70.0

us-gaap:PublicUtilityBonds


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value2.3-4.6-3.22.87.0-0.30.03.6-2.07.94.4-1.2-0.8-6.70.10.00.31.8-4.7-3.21.24.2-4.01.3-4.73.12.1-0.52.43.7
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss-14.813.3266.7-280.0-179.537.5-0.0-450.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0-1050.00.0800.00.0

us-gaap:USStatesAndPoliticalSubdivisions


Fair
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value1.10.61.42.82.80.0-1.50.8-0.80.9-1.10.30.0-2.30.12.40.6-0.6-2.4-6.74.16.72.75.46.5
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss-91.7-60.0-35.9-350.0-186.7-0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0-3350.00.01800.00.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases us-gaap:FairValueByAssetClass

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases

us-gaap:CorporateDebtSecurities


Fair
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value89600.02057190.00.0480.09.90.030380.00.0950.0580.0300.00.00.01.50.04879
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases100.0100.00.0100.0100.0100.00.00.0100.00.0100.00.0100.0100.00.00.0100.00.0100.00.0100.00.00.00.0100.00.0100.0100.0

us-gaap:DebtSecurities


Fair
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value89600.02058320.00.0480.09.90.030380.08.0950.0580.042400.00.0-7.50.04879
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases100.0100.00.0100.0100.3166.20.00.0100.00.0100.00.0100.0100.00.00.0100.00.0100.00.0139.60.00.00.0-500.00.0100.0100.0

us-gaap:EquitySecurities


Fair
Period End2021-06-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value0.30.00.00.00.00.00.03.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases0.00.00.00.00.00.00.07.30.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales us-gaap:FairValueByAssetClass

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales

us-gaap:AssetBackedSecurities


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-09-302018-06-302018-03-312014-12-312014-09-302014-06-302014-03-31
Value8.432607.00.00.00.00.00.00.00.00.00.00.50.1
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales100.0100.0100.0100.00.00.00.00.00.00.00.00.00.0100.0100.0

us-gaap:CorporateDebtSecurities


Fair
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value177.01.0280.0371.49.7293121371117332936492457287861501550176129
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales203.611.514.30.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.012300.029600.0

us-gaap:DebtSecurities


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value2532671.0280.0471.49.72930213712173329365224582810961511662176229
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales303.6100.0111.514.30.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.012560.029700.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3 us-gaap:FairValueByAssetClass

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3

us-gaap:AssetBackedSecurities


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-09-302018-06-302018-03-312014-12-312014-09-302014-06-302014-03-31
Value108655-81.710349-25.6620.00.00.50.09.20.00.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.00.0100.00.00.0

us-gaap:CorporateDebtSecurities


Fair
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value1281602082442364476595364973584094668639023714341132664128250322536549857416259409
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel31242.7289.0-255.0236.7480.1-172.3123.40.00.00.00.00.093200.00.00.00.00.00.00.00.00.00.00.00.00.00.04525.00.00.0

us-gaap:DebtSecurities


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value15512251336635303-37.3222676244349454458736133576322256292418873377550234486799131521317487
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel31505.8141.892.4-411.8616.3616.7145.7359.20.00.00.00.00.0147340.00.00.00.00.00.00.00.00.00.00.00.00.00.05668.50.00.0

us-gaap:EquitySecurities


Fair
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value0.00.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel30.00.60.00.0-0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:PublicUtilityBonds


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value1636-164.312827518-81.58480208-81.766492004713348112-119.36223294479.012130073965877
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3163.141.8-296.6-156.8267.636.6318.4135.80.00.00.00.00.040180.00.00.00.00.00.00.00.00.00.00.00.00.00.01043.50.00.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3 us-gaap:FairValueByAssetClass

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3

us-gaap:AssetBackedSecurities


Fair
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302018-09-302018-06-302018-03-312014-12-312014-09-302014-06-302014-03-31
Value4823850.07.40.00.00.00.00.00.00.00.00.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3100.0100.0100.00.0100.00.00.00.00.00.00.00.00.00.0

us-gaap:CorporateDebtSecurities


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value21243022124240254-132.9690841019-157.925553859520169283657-74.7697379602-24.8456586284-55.2198696816
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3437.01861.90.0146.00.03432.40.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:DebtSecurities


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value27958231288272280-132.88702181096-197.5367702711157288452822-62.680551273864552894353-97.1278798871
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3573.92521.20.0337.50.03793.20.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:PublicUtilityBonds


Fair
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value18113780.06.00.118011376-39.6112163116471181687512107491028988308690.1357230
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel337.0492.291.60.081.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:USStatesAndPoliticalSubdivisions


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value31-15.50.00.131130.00.00.00.00.0890.00.4890.10.029340.07.70.00.00.00.02925
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel363.7-67.10.00.10.0179.70.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInEarnings us-gaap:DerivativeInstrumentRisk

us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInEarnings

us-gaap:EmbeddedDerivativeFinancialInstruments


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value1.716131441-86.914-11.1-0.85.5-17.36.1-2.3-1.79.36.76.28.6269.710-5.6-4.5-27.3-2.0-3.9-15.3-2.3128.5
Percentage of FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInEarnings100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignCurrencyTransactionGainLossBeforeTax

us-gaap:ForeignCurrencyTransactionGainLossBeforeTax


Foreign
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-400000.0-100000.0-500000.0-300000.0800000.0-700000.0200000.0-400000.0400000.0-900000.0-100000.0-100000.0300000.0-800000.0-300000.0-100000.0-400000.0800000.0-800000.0-200000.0200000.0-100000.0-16000000.0-900000.0300000.0-1000000.0-1000000.0-300000.0-1100000.0-1100000.0-200000.0-700000.0-1300000.0-2700000.0-700000.0-1700000.0-600000.0-300000.0-500000.0400000.0-1100000.0-400000.0-1300000.0-2300000.0
Percentage of ForeignCurrencyTransactionGainLossBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossFromComponentsExcludedFromAssessmentOfFairValueHedgeEffectivenessNet

us-gaap:GainLossFromComponentsExcludedFromAssessmentOfFairValueHedgeEffectivenessNet


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value17-7.0-15.9-10.24.5281.1-0.61.60.12.31.21.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of GainLossFromComponentsExcludedFromAssessmentOfFairValueHedgeEffectivenessNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments us-gaap:DerivativeInstrumentRisk, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments

us-gaap:ForeignExchangeContract, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges


Gain
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value-0.10.20.00.0-0.30.8-1.0-0.8-2.5-5.2-0.3-1.2-0.90.0-0.50.036-0.21.4-1.2-1.0-1.111-2.1-0.1-1.3
Percentage of GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestRateSwap, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value0.01.8310.00.40.00.04.40.44.00.20.00.00.00.00.00.03.2-0.10.30.30.02.0-0.20.02.50.6-0.1
Percentage of GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments0.00.0-31600.00.00.00.0-0.0550.0-40.0-500.0-8.0-0.0-0.0-0.0-0.00.0-0.00.0-0.3-150.021.4-0.0-200.018.20.0-119.0-600.07.7

us-gaap:GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value-0.6681279-0.10.00.0-1.20.0-8.1-8.70.28.98.22.23.40.51.18.15.6-24.6107.0-4.810.05.40.9-3.7-3.5-27.5
Percentage of GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments0.00.0-1279800.0-50.00.00.0400.00.0810.01087.50.0-356.0-157.7-733.3-283.3-55.60.0-1620.00.0-68.1-5100.0500.0400.0-1000.0-490.98.1176.23500.02115.4

us-gaap:ImpairmentOfRealEstate

us-gaap:ImpairmentOfRealEstate


Impairment
Period End2020-12-312020-09-30
Value288.4
Percentage of ImpairmentOfRealEstate100.0100.0

us-gaap:IncreaseDecreaseInAccruedIncomeTaxesPayable

us-gaap:IncreaseDecreaseInAccruedIncomeTaxesPayable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value14044-193.379572432-21.4-16.425367-101.4-61.956-55.825-36.89235-45.3-38.5831622-20.2161-233.4312013632-17.0-105.040161718116-342.9-2.4-39.48339-1.0-48.1173
Percentage of IncreaseDecreaseInAccruedIncomeTaxesPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccruedInvestmentIncomeReceivable

us-gaap:IncreaseDecreaseInAccruedInvestmentIncomeReceivable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1381089.2-51.7709259-52.51359590-64.6909554-67.710910352-55.51038664-65.51049051-54.2869668-51.6989660-42.810210034-9.210311250-10.8110126
Percentage of IncreaseDecreaseInAccruedInvestmentIncomeReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInCashCollateralForLoanedSecurities

us-gaap:IncreaseDecreaseInCashCollateralForLoanedSecurities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value5616274-146.5-300.4487-6.62.57.9-107.9-110.1-69.5-74.5-14.0-2.1-6.57.2-8.4-34.1-10.124105.00.53306.1-4.517-3.4-13.2
Percentage of IncreaseDecreaseInCashCollateralForLoanedSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInDeferredPolicyAcquisitionCosts

us-gaap:IncreaseDecreaseInDeferredPolicyAcquisitionCosts


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value12913055614149162622-307.91701731661661651691571541531621451471461521441391401451421271241022117113-5.6262420182230212012201313
Percentage of IncreaseDecreaseInDeferredPolicyAcquisitionCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInInsuranceLiabilities

us-gaap:IncreaseDecreaseInInsuranceLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value872911480-114.600000000000011766773591529091810107183931041151289463981136029106987372291120107101166197174221441677929910911297100184155
Percentage of IncreaseDecreaseInInsuranceLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherAccruedLiabilities

us-gaap:IncreaseDecreaseInOtherAccruedLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value7.6-72.41615068-121.381-44.950-35.8-35.15975-110.4216.05.7-18.31630.0-6.8-30.8146113-69.0806027-62.68.718-29.42343402.9-68.056-18.663-32.1-59.62390-149.6
Percentage of IncreaseDecreaseInOtherAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInReceivables

us-gaap:IncreaseDecreaseInReceivables


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-277.0-4.5-79.7-71.3-100.68.7-30.450-67.910-85.9142-81.729-17.2213-113.018101113-75.427-33.9139-85.7-49.2-17.7154-101.7-14.0-29.0130-35.1130-31.461-69.0-1.6-82.8134-54.6-33.8-45.887-24.4-19.1
Percentage of IncreaseDecreaseInReceivables100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InsuranceCommissions

us-gaap:InsuranceCommissions


Insurance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value259259246258273279270277284290275276273282266262261270255256255259248246244256238232229236227222220238226227230232216220217224215214207218
Percentage of InsuranceCommissions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestRateCashFlowHedgeGainLossReclassifiedToEarningsNet

us-gaap:InterestRateCashFlowHedgeGainLossReclassifiedToEarningsNet


Interest
Period End2021-06-302021-03-31
Value0.00.6
Percentage of InterestRateCashFlowHedgeGainLossReclassifiedToEarningsNet0.0100.0

us-gaap:InvestmentIncomeInterestAndDividend

us-gaap:InvestmentIncomeInterestAndDividend


Investment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value574559603623579596627609635607620631635615632619632614629622634618647623641614643622643627645630640635657633648634
Percentage of InvestmentIncomeInterestAndDividend100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentIncomeInterestAndDividend us-gaap:InvestmentType

srt:PartnershipInterest


Investment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value51352911-31.310124.7122.27.210125.68.23.78.5
Percentage of InvestmentIncomeInterestAndDividend9.06.44.91.8-5.41.71.90.82.00.41.21.72.00.91.30.61.3

us-gaap:DebtSecurities


Investment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value471469520560542539557546564544557560565557571564572563577573579563594573592566594578589581
Percentage of InvestmentIncomeInterestAndDividend82.184.086.389.993.690.588.889.688.989.889.888.888.990.590.491.290.591.791.792.191.391.291.892.092.492.292.493.091.792.6

us-gaap:Derivative


Investment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value17161918202018191817181616151414141312121211101111101010109.99.68.99.07.7
Percentage of InvestmentIncomeInterestAndDividend3.12.93.23.03.63.42.93.12.82.92.92.62.52.52.32.32.22.22.02.02.01.91.61.81.81.81.61.61.61.61.51.41.41.2

us-gaap:EquitySecurities


Investment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value2.03.64.6-0.210-17.10.80.10.64.1-2.21.70.5-0.20.50.40.30.3
Percentage of InvestmentIncomeInterestAndDividend0.30.60.8-0.01.8-2.90.10.00.10.7-0.40.30.1-0.00.10.10.00.0

us-gaap:MortgageReceivables


Investment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value24262526282926252426252729272725252526303026312627282925262827282726
Percentage of InvestmentIncomeInterestAndDividend4.34.74.34.24.84.94.24.23.94.44.24.44.64.44.34.24.04.14.24.94.74.44.94.34.34.64.54.14.14.54.34.54.24.1

us-gaap:OtherLongTermInvestments


Investment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value1.32.1-1.40.41.73.20.90.23.1-0.53.41.41.52.1106.6136.17.2-0.96.310.05.77.14.93.94.72.6113.83.54.02.87.7
Percentage of InvestmentIncomeInterestAndDividend0.20.4-0.20.10.30.50.10.00.5-0.10.50.20.20.31.71.12.11.01.1-0.11.01.60.91.10.80.60.70.41.90.60.50.60.41.2

us-gaap:PolicyLoans


Investment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value5.04.85.15.15.04.85.45.04.84.74.94.74.64.44.64.54.54.34.54.44.34.14.34.24.24.04.24.24.03.94.14.03.93.7
Percentage of InvestmentIncomeInterestAndDividend0.90.90.80.80.90.80.90.80.80.80.80.70.70.70.70.70.70.70.70.70.70.70.70.70.70.70.70.70.60.60.60.60.60.6

us-gaap:ShortTermInvestments


Investment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value0.30.60.41.32.46.46.68.76.77.06.27.96.03.63.33.52.61.91.52.42.11.51.00.70.80.90.70.60.60.50.50.50.60.8
Percentage of InvestmentIncomeInterestAndDividend0.10.10.10.20.41.11.11.41.11.21.01.30.90.60.50.60.40.30.20.40.30.20.20.10.10.10.10.10.10.10.10.10.10.1

us-gaap:InvestmentIncomeInvestmentExpense

us-gaap:InvestmentIncomeInvestmentExpense


Investment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value7.87.57.37.27.68.58.57.37.39.08.48.48.89.68.87.18.18.88.47.47.98.27.77.77.38.57.17.06.98.08.47.26.87.16.66.36.87.2
Percentage of InvestmentIncomeInvestmentExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LaborAndRelatedExpense

us-gaap:LaborAndRelatedExpense


Labor
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value247236227253233239221226223226219224220221199221215207211210202207211205205213213206200201201196194197197187195206209198198201193194191197
Percentage of LaborAndRelatedExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1

us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1


Liability
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value742409909801647368811747644328765684582322693647532283665603496270
Percentage of LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1

us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1


Liability
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value88813278979851092145394010281102143993799210981400932100311061369947101411041385
Percentage of LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1 us-gaap:NatureOfExpense

us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1

us-gaap:OperatingExpense


Liability
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1701192631431811169116231865164916891747
Percentage of LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeaseImpairmentLoss

us-gaap:OperatingLeaseImpairmentLoss


Operating
Period End2021-06-302020-12-312020-09-30
Value130.00.0
Percentage of OperatingLeaseImpairmentLoss100.00.00.0

us-gaap:OperatingLeaseImpairmentLoss us-gaap:ConsolidationItems

us-gaap:OperatingSegments


Operating
Period End2020-12-312020-09-302020-06-302019-06-30
Value0.025-12.70.0
Percentage of OperatingLeaseImpairmentLoss0.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value858-1646.0-339.44812507-1666.7-222.380010471245-332.4-305.0-635.0-1042.110566373176-1337.3277921800-635.5-168.5-1267.1350308-152.2572710-246.3-151.3-1425.1-278.5-34.6594564-197.2
Percentage of OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax unm:ComponentOfNetUnrealizedGainOnSecurities

unm:DeferredAcquisitionCosts


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-13.218-9.9-5.8-32.0252.0-7.7-14.4-14.73.62.67.110-5.2-0.4-4.9-2.017-3.6-10.5-12.6101.814-5.81.52.4-5.8-7.31.21.0175.8
Percentage of OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax-1.5-1.12.9-1.2-1.3-1.5-0.9-1.0-1.4-1.2-1.1-0.9-1.1-1.0-4.9-0.6-1.3-1.1-1.3-1.3-1.1-1.6-1.7-1.1-1.2-1.70.5-1.6-1.0-1.0-0.5-0.7-1.2-2.1

unm:ReserveForFuturePolicyAndContractBenefits


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-797.71636745-511.5-2560.31903531-878.5-1004.7-1230.7464-317.86631064-37.3-109.2-480.9-214.11522-196.9-1112.1-888.110713311532-363.6-753.5185-642.3-831.2-70.94601481297
Percentage of OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax-92.9-99.4-219.7-106.3-102.1-114.2-238.9-109.8-95.9-98.8-139.8104.2-104.4-102.2-35.4-165.2-128.8-121.0-113.8-71.0-120.6-111.0-168.6-197.0-120.9-103.8-244.0-121.7-112.2-117.128.8-304.4-104.0-106.9

us-gaap:DebtSecurities


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value1085-2080.2-433.26083161-2103.2-280.9100913271571-421.6-385.6-804.5-1317.08995566261-2025.839014051198-967.7-237.8-1925.6565466-221.38651096-355.6-249.2-2144.3-417.6
Percentage of OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax126.4126.4127.6126.3126.1126.2126.4126.2126.7126.2126.8126.4126.7126.485.0144.5151.8147.5151.5141.0152.4149.8152.3141.1152.0161.4151.1145.4151.1154.4144.4164.7150.5149.9

us-gaap:DeferredIncomeTaxCharges


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-61.110212-36.7-143.355-49.0-36.9-78.1-81.3-6.41503562-10.1-7.4-43.9-21.7183-62.2-112.3-126.6-25.0-24.3147-62.510624-93.0-99.1154-80.023450
Percentage of OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax-7.1-6.2-3.6-7.6-5.7-3.322.0-4.6-7.5-6.51.9-49.3-5.6-6.0-9.6-11.2-11.8-12.3-13.7-22.4-12.2-15.83.914.4-11.7-17.834.6-16.2-16.2-14.0-62.752.9-16.4-18.2

us-gaap:ReinsuranceRecoverable


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value19-66.9-351.787141-102.0-9.4485767-11.9-14.8-32.9-54.84.2102514-58.4135547-44.9-4.8-75.02222-7.439
Percentage of OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax2.34.1103.618.25.76.14.26.05.55.43.64.95.25.34.016.56.78.14.44.96.15.97.12.85.96.57.44.96.9

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value233-389.5-36.8141567-220.619313528731228-565.2-131.6-234.250-0.87542-362.61422222344546-302.2124-171.7-39.2175189-291.7131-496.8-81.1
Percentage of OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax27.223.710.829.422.613.2-87.216.927.425.1-8.5185.320.722.547.8-1.220.124.027.151.324.229.3-7.2-27.623.835.4-55.625.830.726.7118.4-87.134.929.1

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value226434-93.8126653-436.5-58.6209279326-89.2-80.6-169.5-274.9-6.63920689-690.1113479414-330.8-89.6-654.9182141-91.9304371-119.0-89.8-734.6-159.4
Percentage of OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value253-447.2-67.1161551-286.01988626231745-583.8-186.7-185.68.22711158-496.21171431821.925-250.092-419.5-74.4193203-151.3181-270.4-142.7
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-0.5-0.5-62.2-1.90.23.1-53.51.31.0-0.8420.52.0-1.2-52.9-1.0-1.4-0.6-85.20.41.50.50.60.9-1.31.1-216.61.4-0.7-0.21102.92131.7
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax-0.20.192.7-1.20.0-1.1-26.91.50.4-0.393.0-0.1-1.10.6-645.1-3.7-1.3-1.017.20.31.00.331.63.60.51.251.6-1.9-0.4-0.1-73.31.6-78.8-1.2

us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value13-6.8-21.2-12.9-9.337-0.74.30.9-4.713-4.84.82.9-0.7-7.9-3.4-2.70.20.1-0.2-15.95.421-11.0271519-12.38.55.4-3.28.7-1.2
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax5.41.531.6-8.0-1.7-13.2-0.45.00.3-1.530.50.8-2.6-1.6-8.5-28.9-3.0-4.6-0.00.1-0.1-8.7284.284.94.429.8-3.6-26.7-6.34.2-3.6-1.8-3.20.8

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value231-447.2-36.1141563-263.218911828030510-564.3-131.7-234.8514.47644-362.41432222232247-302.6118-174.0-35.5176187-293.9113-493.1-73.3
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax91.1100.053.887.8102.292.095.3136.9106.896.323.196.770.5126.5622.016.168.676.473.0121.5154.3123.01205.3187.3121.0127.341.547.791.192.2194.262.7182.451.4

us-gaap:AccumulatedTranslationAdjustment


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value9.37.35234-3.0-63.663-37.6-19.717-21.2-15.2-61.84710313917-48.8-25.8-79.4-26.4-27.0-44.164-54.0-43.9-60.2307.626680.9-69.9
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax3.7-1.6-78.121.4-0.522.232.0-43.3-7.55.5-46.62.633.1-25.6131.7116.535.729.29.8-21.9-55.2-14.5-1421.1-175.7-26.0-58.310.580.915.63.7-17.437.5-0.349.0

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-200000.01800000.05400000.0-1900000.02900000.02100000.01000000.0-800000.0-100000.0-300000.0-300000.00-300000.0000000000-200000.000-100000.00000
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.00.00.00.00.00.00.00.00.0100.00.00.0100.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value-4.1-3.858-2.0-3.9-7.050-5.4-4.6-2.8-46.6-4.9-6.3-3.149-2.2-1.8-2.682-3.0-4.0-3.1-2.5-2.8-0.5-3.1174-2.10.1-0.5-111.7-1.2-221.0-10.7150-6.6-7.4-6.5
Percentage of OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value1.21.238-0.4-1.1-1.912-0.8-1.3-0.7-13.0-1.3-2.0-0.712-1.5-1.3-1.539-1.7-2.0-1.60.1-1.4-0.4-1.593-0.90.0-0.3-60.3-0.5-118.9-5.5
Percentage of OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0

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

us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax

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


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value0.4-1.5-11.4-5.6-7.919-2.16.71.6-12.316-10.16.93.8-1.8-12.0-4.7
Percentage of OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation

us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument


Other
Period End2020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value-11.4-5.6-7.9-2.06.61.5-12.316-10.17.03.6-1.8-12.1-4.7
Percentage of OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax100.0100.0100.095.298.593.8100.0100.0100.0101.494.7100.0100.8100.0

us-gaap:OtherCostAndExpenseOperating

us-gaap:OtherCostAndExpenseOperating


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value250245272232256235248227229237233212220224232193206230212205207205209200210193265187190188191178187194210193196181199193196195204190203196
Percentage of OtherCostAndExpenseOperating100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherCostAndExpenseOperating unm:PhaseOfSignificantTransaction, unm:SignificantTransaction

unm:Phase2, unm:ClosedBlockIndividualDisabilityReinsuranceTransaction


Other
Period End2021-06-302021-03-31
Value0.06.2
Percentage of OtherCostAndExpenseOperating0.02.5

us-gaap:OtherCostAndExpenseOperating us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCredit