MET


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

Table of contents



us-gaap:CommonStockValue
us-gaap:StatementClassOfStock
us-gaap:PreferredStockParOrStatedValuePerShare

us-gaap:PreferredStockSharesIssued
us-gaap:ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTerms, us-gaap:StatementClassOfStock
us-gaap:StatementClassOfStock
us-gaap:StatementClassOfStock
us-gaap:PreferredStockSharesAuthorized

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:BenefitsLossesAndExpenses
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

us-gaap:GainLossOnInvestments

us-gaap:GeneralAndAdministrativeExpense

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxesPaidNet

us-gaap:InsuranceCommissionsAndFees
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:InterestAndDebtExpense
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:InterestCreditedToPolicyholdersAccountBalances
met:ASU201712AccountingPronouncement
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:HedgingDesignation, us-gaap:IncomeStatementLocation

us-gaap:InterestPaidNet

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:NetInvestmentIncome

us-gaap:OperatingExpenses
met:ASU201712AccountingPronouncement
us-gaap:DerivativeInstrumentRisk, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents
us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:InvestmentType
us-gaap:ReasonablyPossibleSignificantChangeInUnrecognizedTaxBenefitsByItem
us-gaap:ConsolidationItems
us-gaap:OperatingIncomeLoss
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents

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

us-gaap:PolicyholderBenefitsAndClaimsIncurredNet
met:ASU201712AccountingPronouncement
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:InvestmentType
us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
us-gaap:HedgingDesignation
us-gaap:HedgingDesignation, us-gaap:IncomeStatementLocation
us-gaap:HedgingDesignation, us-gaap:ManagingRisksInherentInServicingAssetsAndServicingLiabilitiesByTypeOfRisk

us-gaap:PremiumsEarnedNet
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:ProfitLoss
us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:SubsequentEventType
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:FinancialInstrument
us-gaap:RealizedInvestmentGainsLosses
us-gaap:InvestmentType

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ProductOrService

us-gaap:Revenues
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:SellingAndMarketingExpense

us-gaap:Assets
us-gaap:BalanceSheetLocation, us-gaap:InvestmentType, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:BalanceSheetLocation, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:BalanceSheetLocation
us-gaap:ConsolidatedEntities, us-gaap:BalanceSheetLocation, us-gaap:InvestmentType
us-gaap:ConsolidatedEntities, us-gaap:FinancialInstrument
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:FinancialInstrument, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:StatementBusinessSegments
us-gaap:StatementGeographical

us-gaap:Liabilities
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:BalanceSheetLocation
us-gaap:ConsolidatedEntities, us-gaap:BalanceSheetLocation, us-gaap:InvestmentType
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:LiabilitiesAndStockholdersEquity
us-gaap:ConsolidatedEntities

us-gaap:StockholdersEquity
us-gaap:ConsolidatedEntities

us-gaap:CashAndCashEquivalentsAtCarryingValue
us-gaap:ConsolidatedEntities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:ShortTermInvestments
us-gaap:ConsolidatedEntities
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:Goodwill
us-gaap:BusinessAcquisition
us-gaap:StatementBusinessSegments
us-gaap:StatementGeographical

us-gaap:FiniteLivedIntangibleAssetsNet
us-gaap:BalanceSheetLocation
us-gaap:DeferredTaxAssetsLiabilitiesNet

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OtherAssets
us-gaap:ConsolidatedEntities

us-gaap:TaxesPayableCurrent
us-gaap:ConsolidatedEntities
us-gaap:LongTermDebt
us-gaap:LongtermDebtType

us-gaap:DebtAndCapitalLeaseObligations

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:MinorityInterest

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive
us-gaap:BalanceSheetLocation
us-gaap:OperatingLeaseLiability

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:StockholdersEquity
us-gaap:ConsolidatedEntities

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapital
us-gaap:ConsolidatedEntities

us-gaap:RetainedEarningsAccumulatedDeficit
us-gaap:ConsolidatedEntities

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax
us-gaap:ConsolidatedEntities
us-gaap:StatementEquityComponents

us-gaap:TreasuryStockValue
us-gaap:ConsolidatedEntities

us-gaap:MinorityInterest

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss

us-gaap:ProfitLoss
us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:SubsequentEventType
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:ProceedsFromIssuanceOfLongTermDebt
us-gaap:LongtermDebtType
us-gaap:RepaymentsOfLongTermDebt

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock
us-gaap:LongtermDebtType
us-gaap:DebtInstrumentInterestRateStatedPercentage

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

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxAssetsNet

us-gaap:UnrecognizedTaxBenefits

us-gaap:DeferredTaxAssetsValuationAllowance

met:CashPaidInConnectionWithFreestandingDerivatives

met:Cashpaidforothertransactionswithtenorsgreaterthanthreemonths

met:Cashreceivedforothertransactionswithtenorsgreaterthanthreemonths

met:Cashreceivedinconnectionwithfreestandingderivatives

met:ChangeInEstimatedFairValueOfEquitySecurities

met:ChangeInEstimatedFairValueOfOtherLimitedPartnershipInterestsAndRealEstateJointVentures

met:ChangeInLiabilitiesHeldForSale

met:ChangeInNetAssetsHeldForSale

met:ChangesInEstimatedFairValueSubsequentToPurchaseForEquitySecurities

met:ChangesInNetUnrealizedInvestmentGainsLossesAttributableToCompany

met:ChangesInNetUnrealizedInvestmentGainsLossesAttributableToNoncontrollingInterests

met:ChangesInNetUnrealizedInvestmentGainsLossesExcludingPortionAttributableToNoncontrollingInterests

met:ChangesInNetUnrealizedInvestmentGainsLossesRelatedToDacAndVoba

met:ChangesInNetUnrealizedInvestmentGainsLossesRelatedToDacVOBAAndDSI

met:ChangesInNetUnrealizedInvestmentGainsLossesRelatedToInsuranceLiabilityGainLossRecognition

met:ChangesInNetUnrealizedInvestmentGainsLossesRelatedToPolicyholderDividendObligation

met:ChangesInNetUnrealizedInvestmentGainsLossesRelatedToPolicyholderLiabilities

met:ChangesInNetUnrealizedInvestmentGainsLossesRelatedToUnrealizedInvestmentGainsLossesDuringPeriod

met:ClosedBlockOperationsRealizedDerivativeGainsLosses
us-gaap:FinancialInstrument
met:CurrentexpectedcreditLossDebtSecuritiesPortionRecognizedinEarnings

met:GainsLossesOnAssetsAndLiabilitiesHeldByConsolidatedSecuritizationsEntitiesUnderFairValueOptionAndAllOtherGainsLosses

met:GainsLossesOnSalesOfOtherLimitedPartnerships

met:IncomeTaxExpenseOnChangeInUnrealizedGainOrLoss

met:Increaseinpolicyholderaccountbalancesassociatedwithfundingagreementbackednotesissuedbutnotsettled

met:InvestmentPortfolioGainsLosses

met:NegativeValueOfBusinessAcquiredAmortization
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

met:NetChangeInOtherInvestedAssets

met:NetChangeInPayablesForCollateralUnderSecuritiesLoanedAndOtherTransactions

met:NetIncomeLossAttributableToParentPerBasicShare

met:NetIncomeLossAttributableToParentPerDilutedShare

met:NetUnrealizedInvestmentGainsLossesAttributableToNoncontrollingInterests

met:NetUnrealizedInvestmentGainsLossesExcludingPortionAttributableToNoncontrollingInterests
us-gaap:ReasonablyPossibleSignificantChangeInUnrecognizedTaxBenefitsByItem
met:OperatingExpensesNet
us-gaap:SubsequentEventType
met:OtherLiabilitiesAssociatedWithTheNoticeOfRedemptionOfPreferredStock

met:PolicyholderBenefitsAndClaimsIncurredNetAndPolicyholderDividends
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

met:SupplementalRealEstateAcquiredInSatisfactionOfDebt

us-gaap:AllowanceForLoanAndLeaseLossesWriteoffsNet
us-gaap:EquitySecuritiesByIndustry
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType
us-gaap:AssetsFairValueAdjustment
us-gaap:FinancialInstrument
us-gaap:AvailableForSaleSecuritiesGrossRealizedGains
us-gaap:FinancialInstrument
us-gaap:AvailableforsaleSecuritiesGrossRealizedLossesExcludingOtherThanTemporaryImpairments
us-gaap:BusinessAcquisition
us-gaap:CashAcquiredFromAcquisition
dei:LegalEntity
us-gaap:CashDividendsPaidToParentCompanyByConsolidatedSubsidiaries

us-gaap:CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths

us-gaap:ClosedBlockDividendObligationChangeInUnrealizedInvestmentGainsLosses

us-gaap:ClosedBlockOperationsBenefitsAndExpense

us-gaap:ClosedBlockOperationsIncomeTaxes

us-gaap:ClosedBlockOperationsNetInvestmentIncome

us-gaap:ClosedBlockOperationsNetResults

us-gaap:ClosedBlockOperationsOtherExpense

us-gaap:ClosedBlockOperationsPolicyholderBenefits

us-gaap:ClosedBlockOperationsPolicyholderDividends

us-gaap:ClosedBlockOperationsPremiums

us-gaap:ClosedBlockOperationsRealizedInvestmentGainsLosses

us-gaap:ClosedBlockOperationsResultsBeforeIncomeTaxes

us-gaap:ClosedBlockOperationsRevenue

us-gaap:CommonStockDividendsPerShareCashPaid

us-gaap:ConcentrationRiskPercentage1

us-gaap:DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotPreviouslyRecorded
us-gaap:FinancialInstrument

us-gaap:DebtSecuritiesAvailableForSaleAllowanceForCreditLossSecuritiesSold
us-gaap:FinancialInstrument

us-gaap:DebtSecuritiesAvailableForSaleAllowanceForCreditLossSellBeforeRecovery
us-gaap:FinancialInstrument

us-gaap:DebtSecuritiesAvailableForSaleChangeInPresentValueExpenseReversal
us-gaap:FinancialInstrument

us-gaap:DeferredPolicyAcquisitionCostsAndPresentValueOfFutureProfitsAmortization1
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:DeferredPolicyAcquisitionCostsPeriodIncreaseDecrease
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents
us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses
us-gaap:RetirementPlanType
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents
us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit
us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanInterestCost
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToSettlementsAndCurtailments1
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanServiceCost
us-gaap:InvestmentType
us-gaap:Depreciation

us-gaap:DerivativeGainLossOnDerivativeNet
us-gaap:HedgingDesignation
us-gaap:HedgingDesignation, us-gaap:IncomeStatementLocation
us-gaap:HedgingDesignation, us-gaap:ManagingRisksInherentInServicingAssetsAndServicingLiabilitiesByTypeOfRisk
us-gaap:IncomeStatementLocation

us-gaap:DirectTaxesAndLicensesCosts

us-gaap:DividendsCommonStockCash
us-gaap:StatementClassOfStock
us-gaap:StatementEquityComponents
us-gaap:SubsequentEventType

us-gaap:DividendsPreferredStock
us-gaap:StatementEquityComponents

us-gaap:DividendsPreferredStockCash
us-gaap:StatementClassOfStock
us-gaap:SubsequentEventType
us-gaap:EarlyRepaymentOfSeniorDebt

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations
us-gaap:InternalCreditAssessment
us-gaap:EmbeddedDerivativeGainLossOnEmbeddedDerivativeNet

us-gaap:EmployeeBenefitsAndShareBasedCompensation
us-gaap:DerivativeInstrumentRisk
us-gaap:FairValueAssetLiabilityRecurringBasisStillHeldUnrealizedGainLossOci
us-gaap:FairValueByAssetClass
us-gaap:FairValueByAssetClass
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss
us-gaap:FairValueByAssetClass
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues
us-gaap:FairValueByAssetClass
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases
us-gaap:FairValueByAssetClass
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales
us-gaap:FinancialInstrument
us-gaap:FairValueByAssetClass
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements
us-gaap:FinancialInstrument
us-gaap:FairValueByAssetClass
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3
us-gaap:FairValueByAssetClass
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3
us-gaap:FairValueByAssetClass, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DerivativeInstrumentRisk
us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInEarnings
us-gaap:DerivativeInstrumentRisk
us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInOtherComprehensiveIncomeLoss
us-gaap:DerivativeInstrumentRisk
us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationIssues
us-gaap:DerivativeInstrumentRisk
us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPurchases
us-gaap:DerivativeInstrumentRisk
us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements
us-gaap:DerivativeInstrumentRisk
us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationTransfersIntoLevel3
us-gaap:DerivativeInstrumentRisk
us-gaap:FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationTransfersOutOfLevel3

us-gaap:FinancingReceivableChangeInMethodCreditLossExpenseReversal
us-gaap:EquitySecuritiesByIndustry
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancingReceivablePurchasedWithCreditDeteriorationAllowanceForCreditLossAtAcquisitionDate
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivablePurchasedWithCreditDeteriorationAmountAtParValue
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivablePurchasedWithCreditDeteriorationAmountAtPurchasePrice
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivablePurchasedWithCreditDeteriorationDiscountPremium

us-gaap:FinancingReceivableSignificantPurchases
us-gaap:BusinessAcquisition
us-gaap:FinitelivedIntangibleAssetsAcquired1

us-gaap:ForeignCurrencyTransactionGainLossRealized

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

us-gaap:GainLossOnDiscontinuationOfCashFlowHedgeDueToForecastedTransactionProbableOfNotOccurringNet

us-gaap:GainLossOnSaleOfDebtInvestments

us-gaap:GainLossOnSaleOfEquityInvestments

us-gaap:GainLossOnSaleOfInvestments

us-gaap:GainLossOnSaleOfOtherAssets

us-gaap:GainLossOnSalesOfLoansNet

us-gaap:GainLossOnTerminationOfLease

us-gaap:GainsLossesOnSalesOfInvestmentRealEstate
us-gaap:InvestmentType
us-gaap:GrossInvestmentIncomeOperating

us-gaap:IncomeLossFromEquityMethodInvestments
us-gaap:InvestmentType

us-gaap:IncreaseDecreaseInAssetsHeldForSale

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:InvestmentIncomeInvestmentExpense

us-gaap:LaborAndRelatedExpense

us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1

us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1

us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1

us-gaap:LifeInsuranceCorporateOrBankOwnedChangeInValue

us-gaap:MinorityInterestPeriodIncreaseDecrease
us-gaap:StatementEquityComponents
us-gaap:InvestmentType
us-gaap:OperatingLeaseLeaseIncome
us-gaap:FinancialInstrument
us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsTax
us-gaap:StatementEquityComponents
met:ASU201712AccountingPronouncement
us-gaap:OtherComprehensiveIncomeLossBeforeTax
us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:InvestmentType
us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:InvestmentType, us-gaap:StatementEquityComponents

us-gaap:OtherExpenses
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:PaymentsForLossesAndLossAdjustmentExpense

us-gaap:PaymentsForProceedsFromDerivativeInstrumentFinancingActivities

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsForProceedsFromPolicyLoans

us-gaap:PaymentsForProceedsFromShortTermInvestments
us-gaap:IncomeStatementLocation, us-gaap:RestructuringCostAndReserve, us-gaap:RestructuringPlan
us-gaap:PaymentsForRestructuring

us-gaap:PaymentsOfDividendsPreferredStockAndPreferenceStock
us-gaap:StatementClassOfStock
us-gaap:PaymentsOfStockIssuanceCosts

us-gaap:PaymentsToAcquireAvailableForSaleSecuritiesDebt

us-gaap:PaymentsToAcquireAvailableForSaleSecuritiesEquity
us-gaap:BusinessAcquisition
us-gaap:PaymentsToAcquireBusinessesGross
us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType
us-gaap:ConsolidatedEntities, us-gaap:BusinessAcquisition

us-gaap:PaymentsToAcquireLimitedPartnershipInterests

us-gaap:PaymentsToAcquireMortgageNotesReceivable

us-gaap:PaymentsToAcquireRealEstateAndRealEstateJointVentures

us-gaap:PolicyholderDividends
us-gaap:StatementClassOfStock
us-gaap:PreferredStockDividendsPerShareDeclared

us-gaap:PreferredStockRedemptionPremium
us-gaap:StatementClassOfStock
us-gaap:StatementEquityComponents

us-gaap:ProceedsFromAnnuitiesAndInvestmentCertificates
us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:ProceedsFromDivestitureOfBusinesses

us-gaap:ProceedsFromIssuanceOfPreferredStockAndPreferenceStock
us-gaap:StatementClassOfStock
us-gaap:StatementEquityComponents

us-gaap:ProceedsFromLimitedPartnershipInvestments

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProceedsFromRealEstateAndRealEstateJointVentures

us-gaap:ProceedsFromSaleAndCollectionOfMortgageNotesReceivable

us-gaap:ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities

us-gaap:ProceedsFromSaleOfAvailableForSaleSecuritiesEquity
us-gaap:FinancialInstrument
us-gaap:ProceedsFromSaleOfInsuranceInvestments

us-gaap:ProfessionalFees

us-gaap:ProvisionForLoanAndLeaseLosses
us-gaap:EquitySecuritiesByIndustry
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax
us-gaap:StatementEquityComponents

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:ReclassificationFromAociCurrentPeriodTax
us-gaap:StatementEquityComponents
us-gaap:SubsequentEventType
us-gaap:RedemptionPremium

us-gaap:RepaymentsOfAnnuitiesAndInvestmentCertificates

us-gaap:RepaymentsOfOtherLongTermDebt

us-gaap:RepaymentsOfSecuredDebt

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation
us-gaap:StatementEquityComponents

us-gaap:StockRedeemedOrCalledDuringPeriodValue
us-gaap:StatementEquityComponents

us-gaap:SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense

us-gaap:SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense
us-gaap:InvestmentType
us-gaap:TradingSecuritiesUnrealizedHoldingGainLoss

us-gaap:TreasuryStockSharesAcquired

us-gaap:TreasuryStockValueAcquiredCostMethod
us-gaap:StatementEquityComponents

met:AccumulatedOtherComprehensiveIncomeLoss
met:SupportAgreements, us-gaap:ConsolidatedEntities
met:AmountGuaranteedUnderSupportAgreement

met:AssetsOnDepositHeldInTrustAndPledgedAsCollateral

met:CarryingValueofTaxCreditsGuaranteedByThirdParties

met:CashAndCashEquivalentsIncludingSubsidiaryHeldForSale

met:CashAndCashEquivalentsIncludingSubsidiaryHeldForSaleEndOfYear
us-gaap:CededCreditRisk
met:CededCreditRiskReinsuranceRecoverablesNet
us-gaap:CededCreditRisk, us-gaap:CededCreditRiskCollateralization
us-gaap:CededCreditRisk
met:CededCreditRiskReinsuranceRecoverablesPercentage

met:ClosedBlockDerivativesChangeInUnrealizedAppreciation

met:ClosedBlockLiabilitiesIncomeTaxPayable

met:DebtAndCapitalLeaseObligationsFaceValue

met:DebtDesignatedasNonderivativeHedgingInstrument
us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:InvestmentType
met:DebtInstrumentsCarryingAmount

met:Deferralrentalpaymentforleveragedanddirectfinanceleases

met:DeferredTaxAssetsLitigationRelatedAndGovernmentMandated
us-gaap:EquitySecuritiesByIndustry
met:DeferredmortgageloaninterestandprincipalpaymentsduetoCOVID19
us-gaap:FinancingReceivablePortfolioSegment

met:DefinedBenefitPlanPlanwithAccumulatedPostretirementBenefitObligationinExcessofPlanAssetsAccumulatedPostretirementBenefitObligation

met:DefinedBenefitPlanPlanwithAccumulatedPostretirementBenefitObligationinExcessofPlanAssetsPlanAssets
us-gaap:TransactionType
met:DerivativeAssetCollateralObligationToReturnSecuritiesOffset

met:DerivativeAssetFairValueGrossAssetExcludingAccruals
us-gaap:TransactionType
us-gaap:TransactionType
met:DerivativeLiabilityCollateralRightToReclaimSecuritiesOffset

met:DerivativeLiabilityFairValueGrossLiabilityExcludingAccruals
us-gaap:TransactionType
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
met:FairValueMortgageLoansNetNotOnRecurringBasis
us-gaap:FairValueByMeasurementBasis

met:FiniteLivedIntangibleLiabilitiesAccumulatedAmortization

met:FiniteLivedIntangibleLiabilitiesAmortizationNextTwelveMonths

met:FiniteLivedIntangibleLiabilitiesAmortizationYearFive

met:FiniteLivedIntangibleLiabilitiesAmortizationYearFour

met:FiniteLivedIntangibleLiabilitiesAmortizationYearThree

met:FiniteLivedIntangibleLiabilitiesAmortizationYearTwo

met:FiniteLivedIntangibleLiabilitiesNet

met:Fixedmaturitysecuritiesamortizedcostnetofallowanceforcreditlo
us-gaap:Range
met:FuturePerformanceFactor
us-gaap:Range, us-gaap:AwardType

met:InsuranceLiabilitiesComprisedOfFuturePolicyBenefitsPolicyholderAccountBalancesAndOtherPolicyRelatedBalances
us-gaap:StatementBusinessSegments
dei:LegalEntity, us-gaap:LongtermDebtType
met:InvestedAssetsOnDepositHeldInTrustAndPledgedAsCollateral
met:FixedAndFloatingRateFundingAgreementsByType
met:InvestedAssetsPledgedAsCollateral
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
met:InvestmentFunds
us-gaap:FairValueByMeasurementFrequency
us-gaap:InvestmentType
met:InvestmentInLeases
us-gaap:InvestmentType
met:InvestmentInLeasesBeforeACL
us-gaap:FinancialInstrument
met:InvestmentinMortgageLoansonRealEstate
us-gaap:FinancialInstrument
met:InvestmentinMortgageLoansonRealEstateFaceAmountofMortgages

met:Liabilityforunpaidclaimsandclaimadjustmentliabilitieslongduration
us-gaap:InvestmentType
met:LoanAndLeasesReceivableRatioOfPerformingLeases
us-gaap:FinancingReceivablePortfolioSegment
met:LoansAndLeasesReceivableConsumerMortgagePercentage
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:InternalCreditAssessment

met:LoansAndLeasesReceivableRatioOfPerformingLoansToAllLoans
us-gaap:EquitySecuritiesByIndustry
met:LoansReceivableCommercialAgriculturalMortgagePercentage
us-gaap:EquitySecuritiesByIndustry, us-gaap:InternalCreditAssessment
us-gaap:EquitySecuritiesByIndustry, us-gaap:LoanToValue
met:DebtServiceCoverageRatioByRange, us-gaap:FinancingReceivablePortfolioSegment
met:LoansReceivableCommercialMortgagePercentage
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:InternalCreditAssessment
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanToValue

met:LongTermDebtExcludingConsolidatedSecuritizationEntities

met:LongTermDebtExcludingConsolidatedSecuritizationEntitiesFaceValue

met:LossContingencyAccrualInsuranceRelatedAssessmentPremiumTaxOffsetCurrentlyAvailable

met:Met_NetAssetsHeldForSale
us-gaap:ProductOrService, us-gaap:GuaranteedInsuranceContractTypeOfGuarantee
met:NetAmountAtRiskByProductAndGuaranteeGeneralAndSeparateAccountValue

met:NetAssetsHeldForSale

met:NetUnrealizedInvestmentGainsLossesIncludedInAccumulatedOtherComprehensiveIncomeLoss

met:NetUnrealizedInvestmentGainsLossesIncludedInAccumulatedOtherComprehensiveIncomeLossAllocatedFromDACVOBAAndDSI

met:NetUnrealizedInvestmentGainsLossesIncludedInAccumulatedOtherComprehensiveIncomeLossAllocatedFromDacAndVoba

met:NetUnrealizedInvestmentGainsLossesIncludedInAccumulatedOtherComprehensiveIncomeLossAllocatedFromInsuranceLiabilityLossRecognition

met:NetUnrealizedInvestmentGainsLossesIncludedInAccumulatedOtherComprehensiveIncomeLossAllocatedFromPolicyHolderDividendObligation

met:NetUnrealizedInvestmentGainsLossesIncludedInAccumulatedOtherComprehensiveIncomeLossAllocatedFromPolicyholderLiabilities

met:NetUnrealizedInvestmentGainsLossesIncludedInAccumulatedOtherComprehensiveIncomeLossAttributableToCompany

met:NetUnrealizedInvestmentGainsLossesIncludedInAccumulatedOtherComprehensiveIncomeLossAttributableToNonControllingInterests

met:NetUnrealizedInvestmentGainsLossesIncludedInAccumulatedOtherComprehensiveIncomeLossRelatedToDebtSecurities

met:NetUnrealizedInvestmentGainsLossesIncludedInAccumulatedOtherComprehensiveIncomeLossRelatedToDebtSecuritiesThatWereTemporarilyImpaired

met:NetUnrealizedInvestmentGainsLossesIncludedInAccumulatedOtherComprehensiveIncomeLossRelatedToDeferredIncomeTaxBenefitExpense

met:NetUnrealizedInvestmentGainsLossesIncludedInAccumulatedOtherComprehensiveIncomeLossRelatedToDerivatives

met:NetUnrealizedInvestmentGainsLossesIncludedInAccumulatedOtherComprehensiveIncomeLossRelatedToOtherInvestments

met:NetUnrealizedInvestmentGainsLossesIncludedInAccumulatedOtherComprehensiveIncomeLossSubtotalOfAllocatedAmounts

met:NetUnrealizedInvestmentGainsLossesIncludedInAccumulatedOtherComprehensiveIncomeLossSubtotalOfInvestmentGainsLossesComponents
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
met:OtherInvestmentsFairValueDisclosure
us-gaap:FairValueByMeasurementBasis

met:OtherLimitedPartnershipInterests

met:OtherPolicyRelatedBalances
us-gaap:ProductOrService

met:OutstandingFundingAgreementsToCertainSpecialPurposeEntities
met:FixedAndFloatingRateFundingAgreementsByType

met:PayablesForCollateralUnderSecuritiesLoanedAndOtherTransactions
us-gaap:ConsolidatedEntities

met:PercentageOfAllowanceForCreditLossesForFinancingReceivables
us-gaap:EquitySecuritiesByIndustry
met:PercentageOfFinancingReceivableGross
us-gaap:FinancingReceivablePortfolioSegment
met:ScheduleOfSecuritiesByDuration
met:PercentageOfGrossUnrealizedLoss
met:ScheduleOfSecuritiesByDuration, us-gaap:ExternalCreditRatingByGrouping

met:PercentageOfLoansAndLeasesReceivableConsumerOtherToMortgageLoansOnRealEstateCommercialAndConsumerNet

met:PercentageOfMortgageLoansClassifiedAsPerforming

met:PercentageOfMortgageLoansHeldForInvestmentNetToMortgageLoansOnRealEstateCommercialAndConsumerNet

met:PercentageOfMortgageLoansHeldForInvestmentToMortgageLoansOnRealEstateCommercialAndConsumerNet

met:PercentageOfMortgageLoansOnRealEstateToMortgageLoansOnRealEstateCommercialAndConsumerNet

met:PercentageofAllowanceforCreditLossesforFinancingReceivables

met:PercentageofAvailableforsaleEquitySecurities
us-gaap:FinancialInstrument

met:Percentageoftotalmortgageloansheldforinvestments
us-gaap:AwardType
met:PerformanceFactor
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
met:PolicyholderContractDepositsFairValueDisclosure
us-gaap:FairValueByMeasurementBasis
us-gaap:StatementClassOfStock
met:RedeemAndCanceledPreferredStock

met:ReinsuranceAssets
us-gaap:ProductOrService

met:ReinsuranceLiabilities
us-gaap:ProductOrService

met:ReinsuranceRecoverablesCeded
us-gaap:CededCreditRiskCollateralization

met:RentalAbatementsForLeasesDueToCovid19

met:SecuritiesLendingReinvestmentPortfolioEstimatedFairValue
us-gaap:InvestmentType
us-gaap:AwardType
met:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpectedToVestWeighedAverageGrantDateFairValue

met:SupplementaryInsuranceInformationFuturePolicyBenefitsOtherPolicyRelatedBalancesAndPolicyholderDividendObligation
us-gaap:StatementBusinessSegments

met:SupplementaryInsuranceInformationUnearnedRevenue
us-gaap:StatementBusinessSegments

met:TaxCreditsGuaranteedByThirdPartiesAmountThatReducesMaximumExposureToLossRelatedToOtherInvestedAssets

met:UnfundedCommitmentsForInvestmentsAccountedForUnderEquityMethod
us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
met:UsGaap_AgreedUponProceedsFromDivestitureOfBusiness
us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:SubsequentEventType

srt:LifeInsuranceInForceAssumed

srt:LifeInsuranceInForceCeded

srt:LifeInsuranceInForceGross

srt:LifeInsuranceInForceNet

srt:LifeInsuranceInForcePercentageAssumedToNet

us-gaap:AccruedInvestmentIncomeReceivable
us-gaap:ConsolidatedEntities

us-gaap:AllowanceForLoanAndLeaseLossesRealEstate
us-gaap:EquitySecuritiesByIndustry
us-gaap:FinancingReceivablePortfolioSegment
us-gaap:InvestmentType

us-gaap:AssetsDesignatedToClosedBlock

us-gaap:AssetsDesignatedToClosedBlockAccruedInvestmentIncome

us-gaap:AssetsDesignatedToClosedBlockCashAndCashEquivalents

us-gaap:AssetsDesignatedToClosedBlockEquitySecuritiesAvailableForSaleAtFairValue

us-gaap:AssetsDesignatedToClosedBlockFixedMaturityAvailableForSaleAtFairValue

us-gaap:AssetsDesignatedToClosedBlockIncomeTaxReceivable

us-gaap:AssetsDesignatedToClosedBlockInvestments

us-gaap:AssetsDesignatedToClosedBlockMortgageLoansOnRealEstate

us-gaap:AssetsDesignatedToClosedBlockOtherInvestments

us-gaap:AssetsDesignatedToClosedBlockPolicyLoans

us-gaap:AssetsDesignatedToClosedBlockPremiumsAndOtherReceivablesNet

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

us-gaap:AssetsHeldInTrust
us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:AssetsOfDisposalGroupIncludingDiscontinuedOperation
us-gaap:BalanceSheetLocation, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
us-gaap:ConsolidatedEntities
us-gaap:FinancialInstrument
us-gaap:FinancialInstrument
us-gaap:AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
us-gaap:FinancialInstrument
us-gaap:AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue

us-gaap:AvailableForSaleSecuritiesDebtSecurities

us-gaap:AvailableForSaleSecuritiesEquitySecurities

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets
us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities
us-gaap:BusinessAcquisition

us-gaap:CapitalLeaseObligations

us-gaap:CapitalLeasesFutureMinimumPaymentsReceivable

us-gaap:CapitalLeasesFutureMinimumPaymentsReceivableCurrent

us-gaap:CapitalLeasesFutureMinimumPaymentsReceivableDueThereafter

us-gaap:CapitalLeasesFutureMinimumPaymentsReceivableInFiveYears

us-gaap:CapitalLeasesFutureMinimumPaymentsReceivableInFourYears

us-gaap:CapitalLeasesFutureMinimumPaymentsReceivableInThreeYears

us-gaap:CapitalLeasesFutureMinimumPaymentsReceivableInTwoYears
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:CapitalizedComputerSoftwareAccumulatedAmortization
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:CapitalizedComputerSoftwareGross

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations

us-gaap:CashEquivalentsAtCarryingValue

us-gaap:ClosedBlockAssetsAndLiabilitiesChangeInPolicyholderDividendObligation

us-gaap:ClosedBlockAssetsAndLiabilitiesEffectOnOtherComprehensiveIncome

us-gaap:ClosedBlockAssetsAndLiabilitiesMaximumFutureEarningsToBeRecognized

us-gaap:ClosedBlockInvestmentsAvailableForSaleChangeInUnrealizedAppreciation

us-gaap:ClosedBlockLiabilities

us-gaap:ClosedBlockLiabilitiesFuturePolicyBenefitsAndPolicyholderAccountBalances

us-gaap:ClosedBlockLiabilitiesOtherClosedBlockLiabilities

us-gaap:ClosedBlockLiabilitiesOtherPolicyholderFunds

us-gaap:ClosedBlockLiabilitiesPolicyholderDividendObligation

us-gaap:ClosedBlockLiabilitiesPolicyholderDividendsPayable
us-gaap:BalanceSheetLocation
us-gaap:CollateralAlreadyPostedAggregateFairValue
us-gaap:BalanceSheetLocation, us-gaap:UnderlyingAssetClass

us-gaap:CommercialPaper

us-gaap:CreditDerivativeMaximumExposureUndiscounted
us-gaap:CreditDerivativesByContractType, us-gaap:InternalCreditAssessment
us-gaap:InternalCreditAssessment

us-gaap:CreditRiskDerivativeAssetsAtFairValue

us-gaap:CreditRiskDerivativeLiabilitiesAtFairValue
us-gaap:CreditDerivativesByContractType, us-gaap:InternalCreditAssessment
us-gaap:InternalCreditAssessment

us-gaap:CreditRiskDerivativesAtFairValueNet
us-gaap:CreditDerivativesByContractType, us-gaap:InternalCreditAssessment
us-gaap:InternalCreditAssessment
dei:LegalEntity, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentCarryingAmount
us-gaap:LongtermDebtType
us-gaap:DebtInstrument
us-gaap:DebtInstrumentFaceAmount
us-gaap:LongtermDebtType
us-gaap:ConsolidatedEntities, us-gaap:Range, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentInterestRateEffectivePercentage
us-gaap:Range, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet
us-gaap:ConsolidatedEntities, us-gaap:LongtermDebtType
us-gaap:LongtermDebtType

us-gaap:DebtSecuritiesAvailableForSaleAllowanceForCreditLoss
us-gaap:FinancialInstrument

us-gaap:DebtSecuritiesAvailableForSaleAmortizedCostAfterAllowanceForCreditLoss

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger
us-gaap:ExternalCreditRatingByGrouping
us-gaap:FinancialInstrument

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss
us-gaap:ExternalCreditRatingByGrouping
us-gaap:FinancialInstrument

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months
us-gaap:ExternalCreditRatingByGrouping
us-gaap:FinancialInstrument

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
us-gaap:ExternalCreditRatingByGrouping
us-gaap:FinancialInstrument
us-gaap:Range, us-gaap:FairValueByAssetClass, us-gaap:MeasurementInputType, us-gaap:ValuationTechnique
us-gaap:DebtSecuritiesAvailableForSaleMeasurementInput

us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPosition

us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss
us-gaap:ConsolidatedEntities, us-gaap:LongtermDebtType
us-gaap:DebtWeightedAverageInterestRate

us-gaap:DeferredFinanceCostsGross

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredPolicyAcquisitionCosts

us-gaap:DeferredPolicyAcquisitionCostsAndValueOfBusinessAcquired
us-gaap:ProductOrService
us-gaap:StatementBusinessSegments

us-gaap:DeferredSalesInducementsNet

us-gaap:DeferredTaxAssetsCapitalLossCarryforwards

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsPolicyholderLiabilities

us-gaap:DeferredTaxLiabilitiesDeferredExpenseDeferredPolicyAcquisitionCost

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssets

us-gaap:DeferredTaxLiabilitiesInvestments
us-gaap:IncomeStatementLocation, us-gaap:IncomeTaxAuthority

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesOtherComprehensiveIncome
us-gaap:BusinessAcquisition
us-gaap:DeferredTaxLiabilitiesTaxDeferredIncome
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmountsRecognizedInBalanceSheet
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate
us-gaap:Range, us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationWeightedAverageInterestCreditingRate
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanBenefitObligation
us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanFundedStatusOfPlan
us-gaap:RetirementPlanType
met:DefinedBenefitPlanAssumedHealthCareCostTrendRates
us-gaap:DefinedBenefitPlanHealthCareCostTrendRateAssumedNextFiscalYear

us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsAccumulatedBenefitObligation

us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsPlanAssets

us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsProjectedBenefitObligation

us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation

us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets

us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation
us-gaap:DefinedBenefitPlanByPlanAssetCategories, us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanPlanAssetsTargetAllocationPercentage
met:DefinedBenefitPlanAssumedHealthCareCostTrendRates
us-gaap:DefinedBenefitPlanUltimateHealthCareCostTrendRate1
us-gaap:DefinedBenefitPlanByPlanAssetCategories, us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanWeightedAverageAssetAllocations
us-gaap:RetirementPlanSponsorLocation, us-gaap:RetirementPlanType

us-gaap:DepositAssets

us-gaap:DepositContractsAssets

us-gaap:DepositContractsLiabilities
us-gaap:TransactionType
us-gaap:DerivativeAssetCollateralObligationToReturnCashOffset
us-gaap:Range, us-gaap:DerivativeInstrumentRisk, us-gaap:MeasurementInputType
us-gaap:DerivativeAssetLiabilityNetMeasurementInput
us-gaap:TransactionType
us-gaap:DerivativeAssetNotOffsetPolicyElectionDeduction
us-gaap:TransactionType
us-gaap:DerivativeAssets

us-gaap:DerivativeCollateralObligationToReturnCash
us-gaap:TransactionType
us-gaap:DerivativeCollateralObligationToReturnSecurities

us-gaap:DerivativeCollateralRightToReclaimCash
met:SupportAgreements, us-gaap:ConsolidatedEntities
us-gaap:DerivativeCollateralRightToReclaimSecurities
us-gaap:TransactionType

us-gaap:DerivativeFairValueOfDerivativeAsset

us-gaap:DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral
met:SupportAgreements, us-gaap:ConsolidatedEntities

us-gaap:DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral

us-gaap:DerivativeFairValueOfDerivativeLiability

us-gaap:DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral
met:SupportAgreements, us-gaap:ConsolidatedEntities

us-gaap:DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral
met:SupportAgreements, us-gaap:ConsolidatedEntities
us-gaap:TransactionType
us-gaap:DerivativeLiabilities
us-gaap:TransactionType
us-gaap:DerivativeLiabilityCollateralRightToReclaimCashOffset
us-gaap:TransactionType
us-gaap:DerivativeLiabilityNotOffsetPolicyElectionDeduction

us-gaap:DerivativeNetLiabilityPositionAggregateFairValue
us-gaap:UnderlyingAssetClass

us-gaap:DerivativeNotionalAmount
met:DerivativeInstrumentsNotionalAmountAssetsLiabilitiesByHedgingRelationship, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
met:DerivativeInstrumentsNotionalAmountAssetsLiabilitiesByHedgingRelationship, us-gaap:HedgingDesignation
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation
us-gaap:HedgingDesignation

us-gaap:DirectFinancingLeaseDeferredSellingProfit

us-gaap:DirectFinancingLeaseLeaseReceivable

us-gaap:DirectFinancingLeaseNetInvestmentInLease
us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DisposalGroupIncludingDiscontinuedOperationAccruedIncomeTaxesPayable

us-gaap:DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents
us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:BalanceSheetLocation
us-gaap:DisposalGroupIncludingDiscontinuedOperationGoodwill1
us-gaap:BalanceSheetLocation, us-gaap:StatementBusinessSegments
us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherAssets
us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities
us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:SubsequentEventType
us-gaap:DividendsReceivable
met:LapseRatesDurationRange, us-gaap:Range, us-gaap:DerivativeInstrumentRisk, us-gaap:MeasurementInputType
us-gaap:EmbeddedDerivativeAssetLiabilityNetMeasurementInput
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us-gaap:EquitySecuritiesByIndustry, us-gaap:LoanToValue
us-gaap:FinancingReceivablePortfolioSegment
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us-gaap:FinancingReceivablePortfolioSegment
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us-gaap:EquitySecuritiesByIndustry
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:FinancingReceivableRecordedInvestmentNonaccrualStatus
us-gaap:EquitySecuritiesByIndustry
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us-gaap:FinancingReceivablePortfolioSegment
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us-gaap:FinancingReceivablePortfolioSegment
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us-gaap:StatementBusinessSegments

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us-gaap:HedgedAssetFairValueHedgeCumulativeIncreaseDecrease

us-gaap:IncomeTaxReceivable
us-gaap:EquitySecuritiesByIndustry
us-gaap:InterestReceivable
us-gaap:FinancingReceivablePortfolioSegment

us-gaap:Investments
us-gaap:ConsolidatedEntities
us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType
us-gaap:InvestmentsFairValueDisclosure
us-gaap:ConsolidatedEntities
us-gaap:InvestmentsInAndAdvancesToAffiliatesAtFairValue

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us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementBasis
us-gaap:LongtermDebtType

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us-gaap:LettersOfCreditOutstandingAmount
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us-gaap:LeveragedLeasesNetInvestmentInLeveragedLeasesDisclosureRentalReceivablesNet

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

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us-gaap:ProductOrService
us-gaap:ProductOrService, us-gaap:GuaranteedInsuranceContractTypeOfBenefit
us-gaap:ProductOrService, us-gaap:GuaranteedInsuranceContractTypeOfGuarantee

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us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

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us-gaap:LiabilityForFuturePolicyBenefitAfterReinsurance

us-gaap:LiabilityForFuturePolicyBenefits
us-gaap:ProductOrService
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us-gaap:LiabilityForFuturePolicyBenefitsInterestRate
us-gaap:Range, us-gaap:StatementGeographical
us-gaap:LiabilityForPolicyholderContractDepositsInterestRate

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us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
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us-gaap:FairValueByMeasurementBasis

us-gaap:LoansReceivableHeldForSaleAmount
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us-gaap:LongDurationContractsAssumptionsByProductAndGuaranteeEstimatedAverageInvestmentYield

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us-gaap:LongTermDebtFairValue
us-gaap:FairValueByMeasurementBasis

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us-gaap:LossContingencyRangeOfPossibleLossPortionNotAccrued
us-gaap:LossContingenciesByNatureOfContingency
us-gaap:LossContingencyReceivable

us-gaap:MortgageLoansInProcessOfForeclosureAmount

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us-gaap:NetAmountAtRiskByProductAndGuaranteeNetAmountAtRisk
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us-gaap:NetAmountAtRiskByProductAndGuaranteeSeparateAccountValue

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us-gaap:OtherAssetsFairValueDisclosure
us-gaap:FairValueByMeasurementBasis

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us-gaap:ConsolidatedEntities

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us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:OtherLiabilitiesFairValueDisclosure
us-gaap:FairValueByMeasurementBasis
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us-gaap:OtherReceivables

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us-gaap:ShortTermDebtType

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us-gaap:RetirementPlanType
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us-gaap:PledgedAssetsSeparatelyReportedSecuritiesPledgedForOtherDebtObligationsAtFairValue

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us-gaap:StatementBusinessSegments

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us-gaap:StatementBusinessSegments
met:DepositaryShares, met:RatingAgency, us-gaap:StatementClassOfStock
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met:RatingAgency, us-gaap:StatementClassOfStock

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us-gaap:ConsolidatedEntities

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us-gaap:StatementClassOfStock
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us-gaap:PreferredStockRedemptionPricePerShare
us-gaap:StatementClassOfStock

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us-gaap:ConsolidatedEntities
us-gaap:ProductOrService

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us-gaap:PresentValueOfFutureInsuranceProfitsAmortizationExpenseYearFour

us-gaap:PresentValueOfFutureInsuranceProfitsAmortizationExpenseYearOne

us-gaap:PresentValueOfFutureInsuranceProfitsAmortizationExpenseYearThree

us-gaap:PresentValueOfFutureInsuranceProfitsAmortizationExpenseYearTwo

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us-gaap:RealEstateInvestments
us-gaap:FinancialInstrument

us-gaap:RealEstateInvestmentsJointVentures

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us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:ReceivablesFairValueDisclosure
us-gaap:FairValueByMeasurementBasis

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us-gaap:ProductOrService
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us-gaap:StatementGeographical

us-gaap:ReinsuranceRecoverables

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us-gaap:MortgageLoansOnRealEstateDescriptionTypeOfProperty
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us-gaap:AwardType
us-gaap:SaleOfStockPricePerShare
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us-gaap:ScheduleOfFairValueOfSeparateAccountsByMajorCategoryOfInvestmentFairValue
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us-gaap:SecuredDebt
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us-gaap:FairValueByMeasurementBasis

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us-gaap:SecuritiesReceivedAsCollateral
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us-gaap:SecuritiesSoldUnderAgreementsToRepurchase
us-gaap:ConsolidatedEntities
us-gaap:SeniorNotes
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us-gaap:FairValueByMeasurementFrequency
us-gaap:ProductOrService
us-gaap:StatementBusinessSegments

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us-gaap:FairValueByMeasurementBasis
us-gaap:StatementBusinessSegments
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice
us-gaap:AwardType
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us-gaap:AwardType
us-gaap:SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1
us-gaap:ProductOrService
us-gaap:ShortDurationContractsDiscountedLiabilitiesAmount
us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
us-gaap:ProductOrService, us-gaap:Range
us-gaap:ShortDurationContractsDiscountedLiabilitiesDiscountRate
us-gaap:ProductOrService, us-gaap:Range, us-gaap:StatementBusinessSegments

us-gaap:ShortTermBorrowings

us-gaap:ShortTermDebtWeightedAverageInterestRate

us-gaap:ShortdurationInsuranceContractsDiscountedLiabilitiesAggregateDiscount
us-gaap:ProductOrService
us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
us-gaap:ProductOrService
us-gaap:ShortdurationInsuranceContractsHistoricalClaimsDurationYearEight
us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
us-gaap:ProductOrService
us-gaap:ShortdurationInsuranceContractsHistoricalClaimsDurationYearFive
us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
us-gaap:ProductOrService
us-gaap:ShortdurationInsuranceContractsHistoricalClaimsDurationYearFour
us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
us-gaap:ProductOrService
us-gaap:ShortdurationInsuranceContractsHistoricalClaimsDurationYearNine
us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
us-gaap:ProductOrService
us-gaap:ShortdurationInsuranceContractsHistoricalClaimsDurationYearOne
us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
us-gaap:ProductOrService
us-gaap:ShortdurationInsuranceContractsHistoricalClaimsDurationYearSeven
us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
us-gaap:ProductOrService
us-gaap:ShortdurationInsuranceContractsHistoricalClaimsDurationYearSix
us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
us-gaap:ProductOrService
us-gaap:ShortdurationInsuranceContractsHistoricalClaimsDurationYearTen
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us-gaap:ProductOrService
us-gaap:ShortdurationInsuranceContractsHistoricalClaimsDurationYearThree
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us-gaap:ProductOrService
us-gaap:ShortdurationInsuranceContractsHistoricalClaimsDurationYearTwo
us-gaap:ProductOrService, us-gaap:StatementBusinessSegments

us-gaap:ShortdurationInsuranceContractsLiabilityForUnpaidClaimsAndAllocatedClaimAdjustmentExpenseNet
us-gaap:ProductOrService
us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
us-gaap:ProductOrService, us-gaap:StatementGeographical
us-gaap:StatementGeographical
us-gaap:ProductOrService
us-gaap:ShortdurationInsuranceContractsLiabilityForUnpaidClaimsAndAllocatedClaimAdjustmentExpenseNetNotSeparatelyPresented
us-gaap:ProductOrService, us-gaap:StatementBusinessSegments

us-gaap:ShortdurationInsuranceContractsLiabilityForUnpaidClaimsAndClaimAdjustmentExpenseAggregateReconcilingItems

us-gaap:ShortdurationInsuranceContractsLiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseAccumulatedUnallocatedClaimAdjustmentExpense
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us-gaap:StatutoryAccountingPracticesStatutoryAmountAvailableForDividendPaymentsWithoutRegulatoryApproval
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us-gaap:StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalance
us-gaap:StatutoryAccountingPracticesByJurisdiction
us-gaap:StatutoryAccountingPracticesByJurisdiction
us-gaap:StatutoryAccountingPracticesStatutoryCapitalAndSurplusRequired

us-gaap:StockRepurchaseProgramAuthorizedAmount1
us-gaap:SubsequentEventType

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us-gaap:ShareRepurchaseProgram

us-gaap:SummaryOfInvestmentsOtherThanInvestmentsInRelatedPartiesCarryingAmount
us-gaap:InvestmentType

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

us-gaap:SupplementaryInsuranceInformationUnearnedPremiums
us-gaap:StatementBusinessSegments

us-gaap:TaxCreditCarryforwardAmount
us-gaap:TaxCreditCarryforward, us-gaap:TaxPeriod

us-gaap:TradingSecurities
us-gaap:ConsolidatedEntities
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency

us-gaap:TransfersAccountedForAsSecuredBorrowingsAssociatedLiabilitiesCarryingAmount
us-gaap:FinancialInstrument
us-gaap:FinancialInstrument, us-gaap:InvestmentType
us-gaap:FinancialInstrument, us-gaap:InvestmentType, us-gaap:SecuritiesFinancingTransaction
us-gaap:FinancialInstrument, us-gaap:SecuritiesFinancingTransaction
us-gaap:InvestmentType
us-gaap:SecuritiesFinancingTransaction
us-gaap:FinancialInstrument
us-gaap:TransfersOfFinancialAssetsAccountedForAsSaleInitialFairValueOfAssetsObtainedAsProceeds

us-gaap:TranslationAdjustmentForNetInvestmentHedgeNetOfTax

us-gaap:UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums

us-gaap:UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate

us-gaap:ValueOfBusinessAcquiredVOBA
us-gaap:ConsolidatedEntities
us-gaap:VariableInterestEntityEntityMaximumLossExposureAmount
us-gaap:ConsolidatedEntities, us-gaap:FinancialInstrument
us-gaap:FinancialInstrument, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

Plots across concepts


IncomeStatement
Other Comprehensive Income Loss Net Of Tax
Expenses
General And Administrative Expense
Balance Sheet
Finite Lived Intangible Assets Net
Assets
Operating Lease Right Of Use Asset
Current Assets
Cash And Cash Equivalents At Carrying Value
NonCurrent Assets
Finite Lived Intangible Assets Net
Liabilities
Other Liabilities
Stockholders Equity
Common Stock Value
Per Share
Common Stock Dividends Per Share Cash Paid
CashFlow
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInOperatingActivities
Foreign Currency Transaction Gain Loss Realized
NetCashProvidedByUsedInInvestingActivities
Payments For Proceeds From Other Investing Activities
NetCashProvidedByUsedInFinancingActivities
Proceeds From Issuance Of Long Term Debt
Shares
Weighted Average Number Of Shares Outstanding Basic
DividendsAndRepurchase
Dividends Common Stock Cash
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Due Year Four
FiniteLivedIntangibleAssets
Finite Lived Intangible Assets Accumulated Amortization

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 ███████████████████████████▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▁12.012.012.012.012.012.012.012.012.012.012.012.012.012.012.012.012.012.012.012.012.012.012.012.012.012.012.011.011.011.011.011.011.011.011.011.011.011.011.011.011.011.010.0NANANA8.0NANANA
 us-gaap:PreferredStockParOrStatedValuePerShare us-gaap:StatementClassOfStock us-gaap:SeriesGPreferredStockNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PreferredStockSharesIssued ▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁██████████████25.572226.072226.072227.072226.072226.072226.032226.032226.032226.032226.032226.032226.032226.025.525.525.525.525.525.525.525.525.525.525.584.084.084.084.084.084.084.084.084.084.084.084.084.084.0NANANA6.857NANANANANANANA
 us-gaap:PreferredStockSharesAuthorized us-gaap:StatementClassOfStock met:NotDesignatedPreferredStock███████████████████████▁▁160.8278159.3278159.3278159.3278160.3278160.3278160.3678160.3678160.3678160.3678160.3678160.3678160.3678160.4160.9160.9160.9160.9160.9160.9160.9160.9160.991.991.9NA93.4NANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PreferredStockSharesAuthorized us-gaap:StatementClassOfStock us-gaap:SeriesCPreferredStockNA1.51.51.51.51.51.51.51.51.51.51.51.51.51.51.51.51.51.51.51.51.51.51.51.5NA0.0NANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PreferredStockSharesAuthorized us-gaap:StatementClassOfStock us-gaap:SeriesDPreferredStock██████████████▁0.50.50.50.50.50.50.50.50.50.50.50.50.50.50.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PreferredStockSharesAuthorized us-gaap:StatementClassOfStock us-gaap:SeriesEPreferredStock▄▄▄▄▄▄▄▄▄▄▄▄▄0.03220.03220.03220.03220.03220.03220.03220.03220.03220.03220.03220.03220.0322NA0.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PreferredStockSharesAuthorized us-gaap:StatementClassOfStock us-gaap:SeriesFPreferredStock██████▁0.040.040.040.040.040.040.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding ▁█879.7892.1NA913.7913.1920.0NA936.4952.9963.3NA1000.71023.81044.4NA1071.51082.11098.7NA1109.2543161109.1284381108.621697NA1129.9410811128.3917781135.761118NA1141.0467311142.2621151140.466038NA1117.2968381106.6803181103.885405NA1065.0418741069.9796181064.252898NA1066.2006991070.9759051069.523536NA883.100164830.472873828.621389NANANANA
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic ▁█873.3885.4NA908.7908.8914.1NA929.6946.2956.5NA992.71015.61035.9NA1062.31074.01090.4NA1100.5045631100.3280491100.836608NA1118.8560411117.8075141125.703588NA1125.1657721127.9860311126.922641NA1104.8926381097.8893471096.925583NA1065.0418741064.6883831064.252898NA1060.1995131059.7514861058.517978NA875.782191822.905671822.654945NANANANA
us-gaap:EarningsPerShareBasic ▇▃▃▄▃█▄▅▅▄▅▄▄▄▅▃▄▄▁▄▃▅▄▄▄▅▄▅▄▄▄▄▃▄▃▂▅▃▄▇▄▄▃▃▅▄▃▂▁▂3.850.330.140.70.074.780.582.311.781.412.050.890.831.22.16-0.080.780.75-1.940.520.061.990.711.070.931.891.311.831.181.150.780.850.430.870.09-0.922.13-0.161.063.351.140.780.050.331.850.980.35-0.79-1.74-0.71
us-gaap:EarningsPerShareDiluted ▇▃▃▄▃█▄▅▅▄▅▄▄▄▅▃▄▄▁▄▃▅▄▄▄▅▄▅▄▄▄▄▃▄▃▂▅▃▄▇▄▄▃▃▅▄▃▂▁▂3.830.330.140.690.074.750.582.31.771.42.040.880.831.192.14-0.080.770.75-1.940.510.061.980.71.060.921.871.31.811.171.140.770.840.430.870.09-0.922.12-0.161.063.331.130.780.050.321.840.970.35-0.79-1.74-0.71
  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
 Operating Margin us-gaap:ConsolidationItems us-gaap:OperatingSegments▃▄▇▄▁▃▅▄▃▃▂▃█▂▂▄▄▄▄▅▄▄▄▅▄▄▅▅▅▄▅▄▄▄▅▄16239.016707.020575.016508.013845.015537.018154.016918.016454.015448.015397.016400.021216.015148.015403.016776.017387.016879.017203.018109.016955.016611.017111.017967.017360.017032.018245.017918.017801.017116.018382.016899.016995.016877.018359.016611.0NANANANANANANANANANANANANANA
 Operating Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,country:USNANANA8660.07117.07955.010333.09151.08526.07777.07534.08676.013486.07341.07645.09033.07902.07266.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Operating Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,met:AsiaSegment▁█3195.03425.0NANA2785.03017.0NANANANANANANANANA2927.02774.02786.02834.02935.02745.02643.02668.02814.02916.02861.02985.03183.03054.02999.03092.03078.03173.03187.03272.03213.0NANANANANANANANANANANANANANA
 Operating Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,met:EMEASegment█▁806.0741.0NANA723.0766.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Operating Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,met:LatinAmericaSegment█▁1242.01174.0NANA997.01139.0NANANANANANANANANA1236.01217.01219.01188.01202.01241.01223.01282.01219.01374.01221.01363.01475.01438.01311.01404.01268.01231.01181.01156.01101.0NANANANANANANANANANANANANANA
 Operating Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,met:MetLifeHoldingsSegment▄▅▄▄▁▃▄▃▄▃▄▄▄▄▅▅▅▆▇▇▇▇██2724.02809.02725.02633.02189.02548.02661.02577.02613.02555.02708.02680.02655.02683.02828.02765.02805.02958.03081.03092.03163.03131.03295.03229.0NANANANANANANANANANANANANANANANANANANANANANANANANANA
 Operating Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,met:UnitedStatesSegment▁█8134.08402.0NANA7117.07955.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Operating Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,srt:AsiaNANANA3353.02785.03017.03032.03013.03007.03001.02948.02959.02905.02952.02880.02927.02774.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Operating Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,srt:LatinAmericaNANANA982.0997.01139.01208.01262.01424.01238.01253.01267.01299.01265.01316.01236.01217.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Operating Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,us-gaap:EMEANANANA747.0723.0766.0741.0729.0742.0733.0714.0707.0746.0754.0731.0711.0703.0688.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  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 ▄▄▇▄▃▃▆▅▄▄▃▄█▃▄▅▅▅▅▆▄▅▅▅▄▅▆▅▅▄▆▄▄▅▆▆▄▅▄▄▅▄▃▂▂▂▂▂▁▁14037.015271.019254.015092.013902.012667.017180.015887.015200.014558.013191.015210.020084.013149.014879.015603.016243.015452.015641.017175.015344.015511.015909.015868.015053.015651.017043.015894.016316.015259.017190.015361.015160.016436.017810.017513.015060.016325.015225.015152.015430.014429.012834.012051.011875.011999.012162.011413.010640.011176.0
us-gaap:ComprehensiveIncomeNetOfTax ▇▂▆▄▇▆▄▇▇▇▆▅▄▄▆▅▆▆▁▅▆█▄▆▃▆▅▆▆▇▅▅▃▅▅▅▆▅▅█▆▅5319.0-7317.02194.0-1821.05951.04103.0-1552.05750.06461.06549.02789.0-942.0-1889.0-1452.02784.0-192.02924.01875.0-10336.0-460.03877.08295.0-1286.01651.0-3971.03038.01178.02028.04209.04439.0912.0-130.0-3876.0169.0199.01636.03764.01039.049.06978.03358.0976.0NANANANANANANANA
us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest ▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▃▄▄█▃▄▃▇▅▁▅▆▅▁▄▃▇▃▄▃▁▄▄▄6.05.03.03.06.04.0-4.09.05.06.0-3.02.04.04.0-2.010.02.04.0-5.0-3.07.093.0-10.02.0-23.063.023.0-56.019.043.033.0-58.05.0-9.073.0-19.0-1.0-15.0-54.012.07.02.0NANANANANANANANA
us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest ▇▂▆▄▇▆▄▇▇▇▆▅▄▄▆▅▆▆▁▅▆█▄▅▃▆▅▆▆▇▅▅▃▅▅▅▆▅▅▇▆▅▄▆▆▆5325.0-7312.02197.0-1818.05957.04107.0-1556.05759.06466.06555.02786.0-940.0-1885.0-1448.02782.0-182.02926.01879.0-10341.0-463.03884.08388.0-1296.01653.0-3994.03101.01201.01972.04228.04482.0945.0-188.0-3881.0178.0202.01655.03765.01054.0216.06966.03351.01119.0-2944.03523.03555.02665.0NANANANA
us-gaap:GainLossOnInvestments █▃▃▃▄▂▄▃▃▃▃▃▂▂▃▁▃▃▂▄▄▃▃▄▂▄▄▃▃▂▂▃▃▄▂▃▃▃▁▃▂▃▃▂▃▃1605.0134.0-33.0-20.0231.0-288.0207.0161.061.015.0145.0117.0-227.0-333.0131.0-606.0104.08.0-367.0257.0266.015.062.0382.0-133.0286.0230.0109.0-125.0-411.0-178.0-85.0110.0314.0-200.022.0-64.0-110.0-558.0-55.0-155.0-99.0-68.0-342.0-14.032.0NANANANA
us-gaap:GeneralAndAdministrativeExpense ▃▃▅▄▄▄▄▆▅▅▁▇█▆█▅▇▅135.0108.0208.0172.0191.0190.0168.0273.0237.0223.026.0290.0351.0243.0361.0229.0318.0221.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest ▇▄▄▄▄█▄▆▅▅▆▅▅▅▅▄▄▄▁▄▄▆▅▅▅▆▅▆▅▅▅▄▄▅▃▃▆▃▅█▅▅▄▄4487.0291.0164.0923.0197.05643.0-37.02791.02297.01744.02471.01079.01101.01656.01054.0501.01002.0817.0-3565.0548.0-100.02922.01135.02163.01113.03059.02076.02952.01950.01826.01268.0976.0561.01247.0-477.0-1010.03338.0-409.01520.05306.01510.01285.0-20.0385.0NANANANANANA
us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest ▇▄▃▄▃█▄▆▅▅▅▄▄▅▆▄▄▄▁▄▃▆▄▅▄▆▅▆▅▅▄▄▄▄▃▂▆▃▄▇▅▄▃▄▅▄▄▃▂▃3412.0363.0158.0709.0150.04401.0588.02190.01746.01385.02062.0915.0894.01257.02315.0893.0887.0829.0-2086.0573.0114.02203.0842.01198.01119.02163.01527.02094.01376.01342.0915.0973.0508.0995.0105.0-957.02300.0-134.01127.03572.01201.01055.082.0322.01540.0833.0310.0-624.0-1420.0-585.0
us-gaap:IncomeTaxExpenseBenefit ▇▄▄▅▄▇▃▆▅▅▅▅▅▅▁▃▄▄▁▄▄▆▅▆▄▆▅▆▅▅▅▄▄▅▃▄▆▄▅█▅▅▄▄▆▅1075.0-72.06.0214.047.01242.0-625.0601.0551.0359.0409.0164.0207.0399.0-1322.0-392.0115.0-12.0-1479.0-25.0-214.0719.0293.0965.0-6.0896.0549.0858.0574.0484.0353.03.053.0252.0-582.0-53.01038.0-275.0394.01734.0519.0428.0-70.068.0827.0356.0NANANANA
us-gaap:IncomeTaxesPaidNet ▄▃▄▂▂▁▃▂▅▂█▂▄▂▆▂▃▂▂▂▃▂▂▄▂▂▃▂▂▂▂▂▂▂▂▂▂▂467.0281.0448.0209.0165.0-35.0257.086.0642.0114.01240.0118.0431.0146.0897.0128.0396.0109.0208.071.0268.0125.0223.0560.0197.0147.0335.081.0235.097.0138.095.0227.0217.0112.0140.0219.083.0NANANANANANANANANANANANA
us-gaap:InsuranceCommissionsAndFees ▂▁▁▂▁▂▁▂▂▁▂▁▁▁▁▂▆▆▆▆▆▇▆▇▇▇▇█▇▇▇▇▇▆▆▅▅▅▄▅▅▄▃▂▂▂1422.01391.01376.01497.01299.01431.01386.01440.01412.01365.01397.01343.01370.01392.01358.01428.02302.02302.02280.02296.02286.02344.02333.02346.02434.02394.02439.02628.02458.02421.02417.02372.02371.02291.02250.02131.02097.02078.01950.01998.01969.01889.01698.01452.01482.01405.0NANANANA
us-gaap:InterestAndDebtExpense ▁▁▁▁▁▁▁▁▃▁▂▃▄▃▃▃▄▄▃▃▄▄▄▄▄▄▄▄▄▄▄▄▄▄▅▅▅▆▆████▇▆228.0228.0230.0229.0232.0222.0224.0223.0274.0234.0260.0267.0309.0286.0278.0284.0295.0296.0291.0292.0306.0312.0300.0302.0308.0298.0297.0295.0312.0312.0323.0317.0321.0321.0330.0326.0342.0358.0369.0425.0420.0415.0414.0397.0369.0NANANANANA
us-gaap:InterestCreditedToPolicyholdersAccountBalances ▅▅▆▅▆▁▅▅▅▆▂▄▅▃▅▅▅▆▅▆▅▄▅▃▄▆▆▆▆▅▇▅▆█▆▇▄█▅▃▅▆▅▄▄▄1515.01351.01756.01416.01962.080.01488.01500.01515.01961.0486.01334.01424.0769.01526.01338.01562.01712.01636.01820.01500.01326.01670.0647.01298.01995.01948.01817.01709.01469.02143.01600.01846.02590.02048.02102.01022.02557.01499.0738.01442.01924.01471.01264.01048.01142.0NANANANA
us-gaap:InterestPaidNet ▆▂▆▂▆▁▇▁█▁▇▄█▄▆287.0153.0312.0153.0290.0136.0317.0137.0362.0148.0321.0217.0349.0243.0312.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLoss ▇▄▃▄▃█▄▆▅▅▅▄▄▅▆▃▄▄▁▄▃▆▄▅▄▆▅▆▅▅▄▄▄▄▃▂▆▃▅▇▅▄▃▄▅▄▄▃▂▃3407.0358.0158.0706.0145.04398.0593.02184.01741.01381.02067.0912.0891.01253.02317.0-81.0884.0826.0-2088.0577.0110.02201.0834.01203.01115.02158.01521.02094.01366.01328.0908.0972.0502.0986.0127.0-954.02295.0-144.01156.03582.01237.01006.082.0316.01557.0835.0320.0-620.0-1402.0-544.0
us-gaap:NetIncomeLossAttributableToNoncontrollingInterest ▇▇▆▆▇▆▅▇▇▇▅▆▆▇▅▇▆▆▆▅▇▆▇▅▇▇▇▆██▇▆▄▅▄▆▄▁▇▇▄▇▆▇▄▆▄▅▃▅5.05.00.03.05.03.0-5.06.05.04.0-5.03.03.04.0-2.06.03.03.02.0-4.04.02.08.0-5.04.05.06.00.010.011.08.03.0-8.0-6.0-9.03.0-8.0-24.04.06.0-7.07.03.04.0-10.0-1.0-7.0-5.0-16.0-4.0
us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic ▇▄▃▄▃█▄▆▅▅▅▄▄▅▆▃▄▄▁▄▃▆▄▅▄▆▅▆▅▅▄▄▄▄▃▂▆▃▅▇▅▄▃▄▅▄▄▃▂▃3366.0290.0124.0633.068.04366.0536.02152.01684.01349.02010.0880.0845.01247.02272.0-87.0838.0820.0-2133.0571.064.02195.0785.01197.01042.02128.01490.02064.01335.01298.0877.0942.0471.0956.096.0-984.02264.0-174.01125.03552.01206.0830.051.0286.01526.0805.0289.0-650.0-1433.0-574.0
us-gaap:NetInvestmentIncome ▆▆▆▅▃▁▅▄▅▅▂▄▄▃▄▄▅▆▅▆▅▄▅▃▅▆▆▆▆▅▇▅▆█▇▆▅█▅▄▆▆▅▄▃▄5280.05314.05240.04729.04087.03061.04644.04623.04693.04908.03462.04486.04473.03745.04454.04295.04959.05196.05037.05464.04887.04559.04914.03959.04947.05461.05449.05410.05259.05035.05847.05026.05282.06077.05548.05517.04719.06200.04937.04257.05098.05317.04870.04364.04061.04321.0NANANANA
us-gaap:OperatingExpenses ▁▂▃▃▁▂▃▃▃▂▃▃▃▃▄▂▅▃▄▄▂▅▅▆▅▅▆▅▅▅▆▅▅▅▆▅▇▆▆█▆▄▃▁▃▁2881.03150.03424.03470.02983.03273.03631.03443.03390.03225.03395.03469.03485.03365.03717.03318.04059.03564.03703.03928.03246.04192.04104.04533.04072.04060.04488.04218.04222.04163.04462.03977.04025.04138.04414.04245.04775.04321.04320.05013.04495.03902.03473.02989.03409.02932.0NANANANA
 us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems us-gaap:OperatingSegments██▇▆▂▅▇▄▄▅▄▅▄▅▁▃▅▅▅▅▂▄▅▁▆▆▆▇▆▅▅▅▆▆▄▅2124.02033.01872.01637.0835.01481.01891.01222.01376.01456.01393.01408.01372.01429.0685.01174.01453.01552.01460.01427.0970.01335.01425.0711.01796.01668.01614.01855.01621.01592.01590.01530.01616.01657.01404.01447.0NANANANANANANANANANANANANANA
 us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,country:USNANANA900.0523.0780.0675.0707.0732.0724.0685.0795.0671.0653.0498.0539.0493.0497.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,met:AsiaSegment▁█520.0623.0NANA256.0350.0NANANANANANANANANA314.0310.0295.0354.0324.0259.0305.0290.0338.0425.0327.0335.0306.0319.0328.0324.0257.0330.0333.0198.0259.0NANANANANANANANANANANANANANA
 us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,met:EMEASegment█▁94.071.0NANA116.078.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,met:LatinAmericaSegment█▁97.040.0NANA132.095.0NANANANANANANANANA163.0154.0143.0122.0133.0128.0137.0150.0176.0116.0131.0187.0152.0160.0183.0173.0133.0125.0143.0148.0152.0NANANANANANANANANANANANANANA
 us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,met:MetLifeHoldingsSegment▇█▆▄▂▄▄▃▅▅▄▅▄▆▃▆▄▅▃▄▁▄▄▄536.0618.0426.0253.020.0277.0269.0149.0299.0317.0223.0327.0280.0425.0152.0410.0235.0385.0199.0266.0-33.0267.0265.0243.0NANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,met:UnitedStatesSegment█▁902.0784.0NANA523.0780.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,srt:AsiaNANANA465.0256.0350.0341.0349.0359.0356.0281.0266.0363.0327.0310.0314.0310.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,srt:LatinAmericaNANANA39.0132.095.0161.0155.0159.0134.0137.0170.0145.0140.0125.0163.0154.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,us-gaap:EMEANANANA52.0116.078.066.053.077.086.055.055.086.081.079.071.072.075.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherComprehensiveIncomeLossNetOfTax █▁1913.0-7675.0NA-2527.05807.0-294.0NA3569.04720.05170.0724.0-1855.0-2779.0-2705.0403.0-107.02039.01050.0-8255.0-1036.03770.06185.0-2138.0455.0-5113.0938.0-326.0-122.02852.03143.029.0-1163.0-4391.0-814.070.02605.01458.01190.0-957.0NANANANANANANANANANANA
us-gaap:OtherIncome ▇▇▄▄▄▃▄▃▄▄▄▄▄▄▃▁▂▂▃▂▄▄▄▄▅▄▅▅▄▄▄▄▄▄▄▄▃▆▇█▆▅▇▆▅▅664.0631.0499.0455.0456.0439.0451.0419.0478.0494.0452.0479.0475.0474.0406.0301.0382.0374.0419.0366.0487.0487.0486.0484.0518.0495.0544.0518.0490.0478.0474.0476.0490.0480.0461.0455.0393.0597.0654.0720.0592.0566.0647.0624.0544.0513.0NANANANA
us-gaap:PolicyholderBenefitsAndClaimsIncurredNet ▃▄▇▄▃▃▅▄▄▃▃▄█▃▃▄▄▄▄▄▄▃▄▄▃▃▄▃▄▃▄▃▃▃▅▃▃▃▃▃▃▂▂▁▁▁9405.010523.013772.010000.08667.09022.011748.010648.09993.09072.08992.010080.014866.08718.09390.010645.010302.09859.09997.010855.010274.09678.09771.010334.09352.09257.010278.09512.09988.09324.010280.09472.08960.09395.011029.08943.08911.09104.09090.09017.09119.08231.07842.07309.06930.07464.0NANANANA
us-gaap:PremiumsEarnedNet ▃▄▇▄▃▃▅▄▄▃▃▄█▃▃▅▄▃▄▄▃▄▄▄▃▃▄▄▄▃▄▃▃▃▄▃▃▃▃▃▃▃▂▁▁▁9132.010327.013897.09935.08736.09466.011920.010781.010129.09405.09267.010242.015153.09178.09571.010876.09935.09315.09652.010391.09417.09693.09605.010375.09312.09253.010272.09703.09873.09219.010271.09094.09158.09151.010589.09096.09161.09129.09171.09342.09294.08554.07538.06484.06584.06788.0NANANANA
us-gaap:ProfitLoss ▇▄▃▄▃█▄▆▅▅▅▄▄▅▆▃▄▄▁▄▃▆▄▅▄▆▅▆▅▅▄▄▄▄▃▂▆▃▄▇▅▄▃▄▅▄▄▃▂▃3412.0363.0158.0709.0150.04401.0588.02190.01746.01385.02062.0915.0894.01257.02315.0-75.0887.0829.0-2086.0573.0114.02203.0842.01198.01119.02163.01527.02094.01376.01339.0916.0975.0510.0992.0136.0-957.02303.0-120.01152.03576.01230.01013.085.0320.01547.0834.0313.0-625.0-1418.0-548.0
 us-gaap:RealizedInvestmentGainsLosses us-gaap:FinancialInstrument us-gaap:DebtSecurities▃▂▃▅▆▃▄▄▅▂▄▅▂▁▃█▄5.0-67.030.0113.0150.04.071.082.0138.0-24.040.0106.0-46.0-95.00.0279.042.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RealizedInvestmentGainsLosses us-gaap:FinancialInstrument us-gaap:EquitySecurities▇▇▇▆▇▁▆▆▆█▄▆▇▆▇▆▆55.075.073.02.072.0-284.012.017.0-2.0107.0-96.018.034.0-31.054.02.00.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RealizedInvestmentGainsLosses us-gaap:InvestmentType met:ActivelyTradedSecuritiesAtEstimatedFairValueAndFVOSecurities▁█1.03.0NANA-4.01.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax ▁▁█▁▁▁▇▁▁▁▆▁▁▁▆▆▇▇▅▇▆▇▇▇▇▇█▇▇▇▇▇▆▇▇▇▇▆▇█▇▆▅▅▆▅▅▄▄▄514.0515.019418.0331.0324.0345.017143.0313.0324.0337.015662.0329.0328.0322.015840.016104.017245.016269.012076.017723.015244.018433.017044.018031.016166.018710.019119.018846.018266.017085.018458.016337.015721.017683.017333.016503.018398.015916.016746.020458.017150.015912.012838.012444.014245.013190.012341.010238.08264.010214.0
us-gaap:Revenues ▇▅▇▅▄▆▆▇▆▅▅▅█▅▅▅▆▅▃▆▅▇▆▆▅▇▇▇▆▆▇▅▅▆▆▅▆▅▆█▆▅▃▃▄▄▃▂▁▂18524.015562.019418.016015.014099.018310.017143.018678.017497.016302.015662.016289.021185.014805.015840.016104.017245.016269.012076.017723.015244.018433.017044.018031.016166.018710.019119.018846.018266.017085.018458.016337.015721.017683.017333.016503.018398.015916.016746.020458.017150.015912.012838.012444.014245.013190.012341.010238.08264.010214.0
us-gaap:SellingAndMarketingExpense ▁▇▆▃▂▄█▇▅▅▅▄▅▄▃▄▁▁1294.01530.01497.01376.01315.01408.01568.01514.01470.01449.01450.01403.01438.01416.01384.01393.01306.01304.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  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 ▃▃▄▃▃▂▂▂▂▂▁▁▁▂▂▂▇▇▇██▇▆▆▇▇▇▇▇▆▆▅▄▅▅▅▅▄▄▄▃▃▂773253.0769814.0795146.0780492.0767583.0737741.0740463.0742812.0732167.0713188.0687538.0698451.0706333.0712584.0719892.0720515.0925199.0914687.0898764.0952904.0942567.0917428.0877933.0882460.0898409.0919790.0902337.0908627.0911120.0890903.0885296.0822643.0815662.0841685.0836781.0846285.0825188.0819604.0799625.0785230.0771483.0751341.0730906.0NANANA539314.0NANANA
us-gaap:Liabilities ▃▃▄▃▃▂▂▂▂▂▁▁▂▂▂▂▇▇▇██▇▆▆▇▇▇▇▇▇▆▅▅▅▅▅▅▅▄▄▃▃▂703830.0703677.0720329.0706923.0691643.0667278.0674081.0674193.0668121.0654450.0634580.0646642.0652501.0656076.0661022.0663571.0855530.0846579.0831284.0874438.0863194.0841463.0809437.0811393.0828420.0845381.0829678.0837226.0840838.0824464.0822313.0761265.0755124.0776717.0771823.0781735.0762364.0760480.0739349.0724355.0717650.0700992.0681793.0NANANA505816.0NANANA
us-gaap:LiabilitiesAndStockholdersEquity ▃▃▄▃▃▂▂▂▂▂▁▁▁▂▂▂▇▇▇██▇▆▆▇▇▇▇▇▆▆▅▄▅▅▅▅▄▄▄▃▃▂773253.0769814.0795146.0780492.0767583.0737741.0740463.0742812.0732167.0713188.0687538.0698451.0706333.0712584.0719892.0720515.0925199.0914687.0898764.0952904.0942567.0917428.0877933.0882460.0898409.0919790.0902337.0908627.0911120.0890903.0885296.0822643.0815662.0841685.0836781.0846285.0825188.0819604.0799625.0785230.0771483.0751341.0730906.0NANANA539314.0NANANA
us-gaap:StockholdersEquity ▆▅▇▇▇▆▅▆▄▃▂▂▂▃▃▃▆▅▅██▇▅▆▆▇▆▆▆▅▄▄▄▅▅▅▄▃▄▄▂▁▁69138.065864.074558.073316.075693.070221.066144.068368.063811.058509.052741.051625.053633.056310.058676.056714.069455.067929.067309.078286.079179.075775.067949.070503.069377.073770.072053.070805.069591.065758.061553.060927.060003.064450.064453.064049.062406.058666.059797.060348.053309.049816.048625.0NANANA33121.0NANANA
  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:CashAndCashEquivalentsAtCarryingValue █▆▆███▅▆▅▄▄▃▅▄▃▃▅▅▅▄▅▃▃▂▁▁▂▂▁▁▁▃▂▂▄▅▄▅▂▂▂▂▃▄▂▂▂25037.019635.019795.024405.024289.024094.016598.019452.018435.014506.015821.012490.016312.013927.012701.013023.017319.017411.017877.015883.017067.013290.012752.010216.08074.08127.010808.08783.07393.08573.07585.011376.09184.09983.015738.016950.016035.018667.010461.010001.09628.010692.013046.014479.010664.09117.010112.0NANANA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents █▁▁25037.019635.019795.0NA24289.024094.016598.0NANANA15821.0NANANA12701.0NANANA12651.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ShortTermInvestments ▁▂▁▁▂▂▁▁▁▂▂▂▁▂▂▃▃▄▃▅▄▅▄▆▆▆▄▅▅▆▆▅▆▆▇▆█▅▇▇▅▄▄3759.04781.03904.03832.05345.05930.03850.03536.02811.04524.03937.05231.03853.05121.04870.07217.07177.09968.07810.011655.09838.011621.09299.014957.014594.014130.08621.012240.012366.013908.013955.012664.012990.013653.016906.014678.018526.011801.017310.015913.012419.08822.09387.0NANANA8374.0NANANA
  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:PropertyPlantAndEquipmentGross NANA2800.0NANANA2700.0NANANA2600.0NANANA2500.0NANANA2400.0NANANA2000.0NANANA2000.0NANANA2000.0NANANA2500.0NANANA2500.0NANANA2400.0NANANA1900.0NANANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment NANA1500.0NANANA1400.0NANANA1200.0NANANA1100.0NANANA1100.0NANANA1100.0NANANA1000.0NANANA1000.0NANANA1300.0NANANA1200.0NANANA1200.0NANANA1000.0NANANA
us-gaap:Goodwill ▂▃▃▁▁▁▁▁▂▂▂▂▂▂▂▂▂▁▁▂▃▂▂▂▂▂▃▄▄▄▄▂▂▂▃▃▇█████▇9768.09944.010112.09360.09245.09159.09308.09278.09408.09418.09422.09440.09499.09733.09590.09556.09385.09350.09220.09592.09852.09729.09477.09546.09644.09717.09872.010216.010430.010433.010542.09509.09447.09696.09953.010024.011823.011903.011935.012006.012036.011946.011781.0NANANA5047.0NANANA
us-gaap:FiniteLivedIntangibleAssetsNet NANA1099.0NANANA335.0NANANA384.0NANANA459.0NANANA629.0NANANA719.0NANANA847.0NANANA975.0NANANA1108.0NANANA1264.0NANANA1094.0NANANA792.0NANANA
 us-gaap:DeferredTaxAssetsLiabilitiesNet us-gaap:BalanceSheetLocation us-gaap:OtherAssetsNANA94.0NANANA65.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OperatingLeaseRightOfUseAsset NANA1314.0NANANA1488.01543.01494.01521.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  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:TaxesPayableCurrent NANA129.0638.0928.0708.0363.031.00.0505.0441.0166.0222.0155.0311.0NANANA0.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  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 us-gaap:ConsolidatedEntities srt:ParentCompanyNANA15536.0NANANA14355.0NANANA13801.0NANANA16599.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:LongtermDebtType met:OtherNotesNANA525.0NANANA454.0NANANA473.0NANANA574.0NANANA453.0NANANA458.0NANANA110.0NANANA531.0NANANA133.0NANANA42.0NANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:LongtermDebtType met:SurplusNotesNANA504.0NANANA503.0NANANA503.0NANANA502.0NANANA501.0NANANA502.0NANANA701.0NANANA701.0NANANA700.0NANANA700.0NANANA699.0NANANA698.0NANANA
 us-gaap:LongTermDebt us-gaap:LongtermDebtType us-gaap:SeniorNotesNANA13463.0NANANA12379.0NANANA11844.0NANANA14599.0NANANA15505.0NANANA16994.0NANANA15317.0NANANA15938.0NANANA15669.0NANANA15666.0NANANA16258.0NANANA10458.0NANANA
us-gaap:DebtAndCapitalLeaseObligations NANA14991.0NANANA13696.0NANANA13092.0NANANA16157.0NANANA16709.0NANANA18063.0NANANA16235.0NANANA17373.0NANANA16635.0NANANA21310.0NANANA21072.0NANANA14132.0NANANA
us-gaap:DeferredIncomeTaxLiabilitiesNet ▆▅█▇█▆▅▇▅▃▁9748.08570.011008.010839.011334.010009.09032.010153.08766.07075.05414.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:MinorityInterest ▃▃▂▂▂▂▂▂▂▂▂▁▁▁▁▂▂▁▁▁▁▁▆▆▇▇▇▆██▇▄▅▅▅▄▄▄▄▅▅▅▄285.0273.0259.0253.0247.0242.0238.0251.0235.0229.0217.0184.0199.0198.0194.0230.0214.0179.0171.0180.0194.0190.0470.0485.0520.0544.0507.0494.0583.0574.0543.0341.0405.0422.0384.0349.0323.0344.0374.0397.0400.0405.0371.0NANANA377.0NANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo NANA238.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree NANA219.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour NANA197.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA185.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANA553.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  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:StockholdersEquity ▆▅▇▇▇▆▅▆▄▃▂▂▂▃▃▃▆▅▅██▇▅▆▆▇▆▆▆▅▄▄▄▅▅▅▄▃▄▄▂▁▁69138.065864.074558.073316.075693.070221.066144.068368.063811.058509.052741.051625.053633.056310.058676.056714.069455.067929.067309.078286.079179.075775.067949.070503.069377.073770.072053.070805.069591.065758.061553.060927.060003.064450.064453.064049.062406.058666.059797.060348.053309.049816.048625.0NANANA33121.0NANANA
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest ▆▆▇▇▇▇▆▆▆▅▄▄▄▅▅▅▇▆▆██▇▆▇▇▇▇▇▇▆▅▅▅▆▆▆▅▅▅▅▄▄▃▃▂▁▁69423.066137.074817.073569.075940.070463.066382.068619.064046.058738.052958.051809.053832.056508.058870.056944.069669.068108.067480.078466.079373.075965.068419.070988.069897.074314.072560.071299.070174.066332.062096.061268.060408.064872.064837.064398.062729.059010.060171.060745.053709.050221.048996.046769.039724.036179.033528.0NANANA
us-gaap:CommonStockValue ███████████████████████████▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▁12.012.012.012.012.012.012.012.012.012.012.012.012.012.012.012.012.012.012.012.012.012.012.012.012.012.012.011.011.011.011.011.011.011.011.011.011.011.011.011.011.011.010.0NANANA8.0NANANA
us-gaap:AdditionalPaidInCapital ██████▇▇▇▇▇▇▇▆▅▅▅▅▅▅▅▅▅▅▅▅▅▄▄▄▄▄▃▃▂▂▁▁▁▁▁▁▁33440.033910.033812.033744.033728.033711.032680.032639.032602.032535.032474.032475.032454.031653.031111.031066.031021.030990.030944.030797.030783.030769.030749.030726.030718.030632.030543.029488.029438.029384.029277.029221.028137.028072.028011.026964.026927.026920.026782.026744.026714.026668.026423.0NANANA16859.0NANANA
us-gaap:RetainedEarningsAccumulatedDeficit █▇▇▇▇▇▆▆▅▄▄▃▃▃▃▂▆▆▆▇▇▇▇▆▆▆▅▅▄▄▃▃▃▃▂▃▃▂▃▃▂▁▁39318.036373.036491.036782.036568.036919.033078.032948.031209.029944.028926.027331.026870.026453.026527.024410.035270.034863.034480.037054.036924.037301.035519.035153.034376.033754.032020.030928.029259.028319.027332.026766.025824.025958.025205.025920.026904.024640.027289.026951.023399.022193.021363.0NANANA19501.0NANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▆▅█▇█▆▆▇▅▃▁▁▂▃▄▃▄▃▃▆▆▅▃▃▃▅▅▅▅▄▃▃▃▅▅▅▄▃▃▃▂▁▁12309.010397.018072.016036.018563.012757.013052.015197.011631.06911.01722.01000.02854.05634.07427.07005.08436.06396.05347.013595.014632.010865.04771.06891.06443.011529.010649.010992.011058.08215.05104.05100.06202.010580.011397.011325.08735.07266.05886.06813.03356.01115.01000.0NANANA-3058.0NANANA
us-gaap:TreasuryStockValue ██▇▇▇▇▇▆▆▆▆▅▅▄▄▃▃▃▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁15941.014828.013829.013258.013178.013178.012678.012428.011643.010893.010393.09193.08557.07442.06401.05779.05284.04332.03474.03172.03172.03172.03102.02279.02172.02158.01172.0615.0176.0172.0172.0172.0172.0172.0172.0172.0172.0172.0172.0172.0172.0172.0172.0NANANA190.0NANANA
us-gaap:MinorityInterest ▃▃▂▂▂▂▂▂▂▂▂▁▁▁▁▂▂▁▁▁▁▁▆▆▇▇▇▆██▇▄▅▅▅▄▄▄▄▅▅▅▄285.0273.0259.0253.0247.0242.0238.0251.0235.0229.0217.0184.0199.0198.0194.0230.0214.0179.0171.0180.0194.0190.0470.0485.0520.0544.0507.0494.0583.0574.0543.0341.0405.0422.0384.0349.0323.0344.0374.0397.0400.0405.0371.0NANANA377.0NANANA
  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 ▃▂▆▅▁▂▇▅▃▃▂▄▇▂▃▆▄▃▇▄▅▂▆▃▅▃▇▅▆▃█▃▆▃▂▄█▇▂▃▄▄▃▂▁▄2254.01496.05153.03793.0846.01847.05181.04146.02387.02072.01301.03533.05608.01296.02050.04734.03401.02098.05644.02928.04291.01964.04602.02639.04202.02686.05426.04029.04437.02484.06147.02670.04581.02733.01872.03186.06344.05758.01250.02247.03292.03501.02803.01265.01057.02871.0NANANANA
us-gaap:NetCashProvidedByUsedInInvestingActivities ▆▅▅▃▅▃▃▄▆▄▇▄▄▅▆▂▅▄█▄▄▄▄▅▅▃▄▄▃▆▃▆▆▃▆▅▁▆▆▄▃▃▆▃▅▃1009.0-1054.0-2162.0-6679.0-1391.0-8337.0-7093.0-5351.0557.0-5699.05358.0-6228.0-4279.0-485.0282.0-10009.0-2873.0-4276.08736.0-4678.0-4169.0-5739.0-3491.0-147.0140.0-6900.0-3386.0-4969.0-8864.02164.0-8590.01278.01866.0-9719.02146.0-1298.0-14944.02167.01114.0-6451.0-8804.0-8094.01055.0-9249.0-2522.0-7598.0NANANANA
us-gaap:NetCashProvidedByUsedInFinancingActivities ▅▄▂▅▄█▄▅▄▅▃▄▅▄▃▄▄▅▁▄▅▅▅▄▃▅▄▅▅▃▄▄▂▅▃▄▆▄▄▅▅▅▃▇▅▅1632.0-564.0-6993.02885.0680.014157.0-1009.02327.0934.02316.0-3332.0-1081.01394.0218.0-2595.0883.0-693.01499.0-11778.0612.03376.04240.01557.0-288.0-4287.01723.0279.02411.03225.0-3659.0-1323.0-1794.0-7114.01324.0-5217.0-1039.06051.0240.0-1800.04596.04324.02262.0-5248.011768.03016.03845.0NANANANA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▆▃▁▃▃█▂▄▆▃4895.0-314.0-3845.0116.0195.07496.0-2854.01017.03929.0-1315.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  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 ▃▂▆▅▁▂▇▅▃▃▂▄▇▂▃▆▄▃▇▄▅▂▆▃▅▃▇▅▆▃█▃▆▃▂▄█▇▂▃▄▄▃▂▁▄2254.01496.05153.03793.0846.01847.05181.04146.02387.02072.01301.03533.05608.01296.02050.04734.03401.02098.05644.02928.04291.01964.04602.02639.04202.02686.05426.04029.04437.02484.06147.02670.04581.02733.01872.03186.06344.05758.01250.02247.03292.03501.02803.01265.01057.02871.0NANANANA
us-gaap:NetIncomeLoss ▇▄▃▄▃█▄▆▅▅▅▄▄▅▆▃▄▄▁▄▃▆▄▅▄▆▅▆▅▅▄▄▄▄▃▂▆▃▅▇▅▄▃▄▅▄▄▃▂▃3407.0358.0158.0706.0145.04398.0593.02184.01741.01381.02067.0912.0891.01253.02317.0-81.0884.0826.0-2088.0577.0110.02201.0834.01203.01115.02158.01521.02094.01366.01328.0908.0972.0502.0986.0127.0-954.02295.0-144.01156.03582.01237.01006.082.0316.01557.0835.0320.0-620.0-1402.0-544.0
us-gaap:ProfitLoss ▇▄▃▄▃█▄▆▅▅▅▄▄▅▆▃▄▄▁▄▃▆▄▅▄▆▅▆▅▅▄▄▄▄▃▂▆▃▄▇▅▄▃▄▅▄▄▃▂▃3412.0363.0158.0709.0150.04401.0588.02190.01746.01385.02062.0915.0894.01257.02315.0-75.0887.0829.0-2086.0573.0114.02203.0842.01198.01119.02163.01527.02094.01376.01339.0916.0975.0510.0992.0136.0-957.02303.0-120.01152.03576.01230.01013.085.0320.01547.0834.0313.0-625.0-1418.0-548.0
  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 ▆▅▅▃▅▃▃▄▆▄▇▄▄▅▆▂▅▄█▄▄▄▄▅▅▃▄▄▃▆▃▆▆▃▆▅▁▆▆▄▃▃▆▃▅▃1009.0-1054.0-2162.0-6679.0-1391.0-8337.0-7093.0-5351.0557.0-5699.05358.0-6228.0-4279.0-485.0282.0-10009.0-2873.0-4276.08736.0-4678.0-4169.0-5739.0-3491.0-147.0140.0-6900.0-3386.0-4969.0-8864.02164.0-8590.01278.01866.0-9719.02146.0-1298.0-14944.02167.01114.0-6451.0-8804.0-8094.01055.0-9249.0-2522.0-7598.0NANANANA
  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 ▅▄▂▅▄█▄▅▄▅▃▄▅▄▃▄▄▅▁▄▅▅▅▄▃▅▄▅▅▃▄▄▂▅▃▄▆▄▄▅▅▅▃▇▅▅1632.0-564.0-6993.02885.0680.014157.0-1009.02327.0934.02316.0-3332.0-1081.01394.0218.0-2595.0883.0-693.01499.0-11778.0612.03376.04240.01557.0-288.0-4287.01723.0279.02411.03225.0-3659.0-1323.0-1794.0-7114.01324.0-5217.0-1039.06051.0240.0-1800.04596.04324.02262.0-5248.011768.03016.03845.0NANANANA
us-gaap:ProceedsFromIssuanceOfLongTermDebt NANA0.050.00.01074.00.00.01382.00.00.010.00.014.00.0668.02989.00.00.00.00.00.02315.086.00.01492.00.00.01000.00.01372.00.0NANA0.0750.00.00.00.0125.0941.0280.0500.03912.0515.0163.0NANANANA
 us-gaap:RepaymentsOfLongTermDebt us-gaap:LongtermDebtType met:OtherNotesMPEHNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PaymentsOfDividendsCommonStock ▅▅▅▅▅▄▅▅▅▄▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▄▄▄▄▄▄▄▄▃█▁▁▁421.0408.0415.0419.0419.0404.0406.0413.0419.0405.0415.0419.0428.0416.0422.0427.0431.0437.0441.0441.0441.0413.0419.0420.0420.0394.0398.0395.0395.0311.0311.0303.0302.0203.0811.00.00.00.0NANANANANANANANANANANANA
us-gaap:PaymentsForRepurchaseOfCommonStock ▇▇▄▁▁▄▂▆▅▄█▅█▇▅▄▇▆▃▁▁▁▆▂▁▇▄▄▁▁▁▁1113.0999.0571.080.00.0500.0250.0785.0750.0500.01200.0636.01115.01041.0622.0495.0952.0858.0302.00.00.070.0823.0107.014.0986.0557.0439.04.00.00.00.0NANANANANANANANANANANANANANANANANANA
  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:DebtInstrumentInterestRateStatedPercentage us-gaap:LongtermDebtType met:JuniorSubordinatedDebtInstrumentFourNANA6.4000000000000006e-06NANANA6.4e-08NANANA6.4e-08NANANA6.4e-08NANANA6.4e-08NANANA6.4e-08NANANA6.4e-08NANANA6.4e-08NANANA6.4e-08NANANA6.4e-08NANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:LongtermDebtType met:JuniorSubordinatedDebtInstrumentOneNANA1.075e-05NANANA1.075e-07NANANA1.075e-07NANANA1.075e-07NANANA1.075e-07NANANA1.075e-071.075e-071.075e-07NA1.075e-07NANANA1.075e-07NANANA1.075e-07NANANA1.075e-07NANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:LongtermDebtType met:JuniorSubordinatedDebtInstrumentThreeNANA7.875e-06NANANA7.875e-08NANANA7.875e-08NANANA7.875e-08NANANA7.875e-08NANANA7.875e-08NANANA7.875e-08NANANA7.875e-08NANANA7.875e-08NANANA7.875e-08NANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:LongtermDebtType met:JuniorSubordinatedDebtInstrumentTwoNANA9.25e-06NANANA9.25e-08NANANA9.25e-08NANANA9.25e-08NANANA9.25e-08NANANA9.25e-08NANANA9.25e-08NANANA9.25e-08NANANA9.25e-08NANANA9.25e-08NANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:LongtermDebtType us-gaap:SeniorNotesNANA5.7000000000000005e-06NANANA5.7e-08NANANA5.7e-08NANANANANANANANANANANANANANANA5.8749999999999993e-08NANANANANANANANANANANANANANANANANANANANANANANA

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
Value12121212121212121212121212121212121212121212121212121211111111111111111111111111111110.08.0
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 Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Preferred Stock Par Or Stated Value Per Share

us-gaap:PreferredStockParOrStatedValuePerShare us-gaap:StatementClassOfStock

us-gaap:PreferredStockParOrStatedValuePerShare

us-gaap:SeriesGPreferredStock


Preferred
Period End2020-09-10
Value0.01
Percentage of PreferredStockParOrStatedValuePerShare100.0

Preferred Stock Shares Issued

us-gaap:PreferredStockSharesIssued

us-gaap:PreferredStockSharesIssued


Preferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-31
Value2526262726262626262626262626252525252525252525252584848484848484848484848484846.857
Percentage of PreferredStockSharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PreferredStockSharesIssued us-gaap:ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTerms, us-gaap:StatementClassOfStock

us-gaap:NoncumulativePreferredStockSubjectToMandatoryRedemption, us-gaap:SeriesCPreferredStock


Preferred
Period End2020-09-30
Value1.0
Percentage of PreferredStockSharesIssued3.7

us-gaap:PreferredStockSharesIssued us-gaap:StatementClassOfStock

us-gaap:SeriesCPreferredStock


Preferred
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-06-012014-12-31
Value0.50.50.51.51.51.51.51.51.51.51.51.51.51.51.51.51.51.51.51.51.51.51.51.51.50.0
Percentage of PreferredStockSharesIssued1.91.91.85.85.85.85.85.85.85.85.85.85.85.95.95.95.95.95.95.95.95.95.95.90.00.0

us-gaap:SeriesDPreferredStock


Preferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312018-03-202017-12-31
Value0.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.0
Percentage of PreferredStockSharesIssued2.01.91.91.81.91.91.91.91.91.91.91.91.91.90.00.0

us-gaap:SeriesEPreferredStock


Preferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-06-042017-12-31
Value0.03220.03220.03220.03220.03220.03220.03220.03220.03220.03220.03220.03220.03220.03220.0
Percentage of PreferredStockSharesIssued0.10.10.10.10.10.10.10.10.10.10.10.10.10.00.0

us-gaap:SeriesFPreferredStock


Preferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312020-01-152019-12-31
Value0.040.040.040.040.040.040.040.0
Percentage of PreferredStockSharesIssued0.20.20.20.10.20.20.00.0

Preferred Stock Shares Authorized

us-gaap:PreferredStockSharesAuthorized us-gaap:StatementClassOfStock

us-gaap:PreferredStockSharesAuthorized

met:NotDesignatedPreferredStock


Preferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value160159159159160160160160160160160160160160160160160160160160160160160919193
Percentage of PreferredStockSharesAuthorized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:SeriesCPreferredStock


Preferred
Period End2021-05-172021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value0.51.51.51.51.51.51.51.51.51.51.51.51.51.51.51.51.51.51.51.51.51.51.51.51.50.0
Percentage of PreferredStockSharesAuthorized0.00.90.90.90.90.90.90.90.90.90.90.90.90.90.90.90.90.90.90.90.90.90.91.61.60.0

us-gaap:SeriesDPreferredStock


Preferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value0.50.50.50.50.50.50.50.50.50.50.50.50.50.50.0
Percentage of PreferredStockSharesAuthorized0.30.30.30.30.30.30.30.30.30.30.30.30.30.30.0

us-gaap:SeriesEPreferredStock


Preferred
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
Value0.03220.03220.03220.03220.03220.03220.03220.03220.03220.03220.03220.03220.03220.0
Percentage of PreferredStockSharesAuthorized0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:SeriesFPreferredStock


Preferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value0.040.040.040.040.040.040.0
Percentage of PreferredStockSharesAuthorized0.00.00.00.00.00.00.0

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
Value879892913913920936952963100010231044107110821098110911091108112911281135114111421140111711061103106510691064106610701069883830828
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
Value87388590890891492994695699210151035106210741090110011001100111811171125112511271126110410971096106510641064106010591058875822822
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

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
Value3.850.330.140.70.074.780.582.311.781.412.050.890.831.22.16-0.080.780.75-1.940.520.061.990.711.070.931.891.311.831.181.150.780.850.430.870.09-0.922.13-0.161.063.351.140.780.050.331.850.980.35-0.79-1.74-0.71
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
Value3.830.330.140.690.074.750.582.31.771.42.040.880.831.192.14-0.080.770.75-1.940.510.061.980.71.060.921.871.31.811.171.140.770.840.430.870.09-0.922.12-0.161.063.331.130.780.050.321.840.970.35-0.79-1.74-0.71
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 End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value1403715271192541509213902126671718015887152001455813191152102008413149148791560316243154521564117175153441551115909158681505315651170431589416316152591719015361151601643617810175131506016325152251515215430144291283412051118751199912162114131064011176
Percentage of BenefitsLossesAndExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2730.92965.299.24559.54290.73671.6100.25075.74691.44319.984.24623.16123.24083.593.996.994.295.0129.596.9100.784.193.388.093.183.789.184.389.389.393.194.096.492.9102.8106.181.9102.690.974.190.090.7100.096.883.491.098.5111.5128.8109.4

us-gaap:BenefitsLossesAndExpenses us-gaap:ConsolidationItems

us-gaap:MaterialReconcilingItems


Benefits
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value506113010126301090-1075.0665452437901-617.0510488-213.0682618686541205861-356.0657625-597.028881912487754339939541400185714202928
Percentage of BenefitsLossesAndExpenses3.67.45.34.27.8-8.53.92.82.96.2-4.73.42.4-1.64.64.04.23.51.35.0-2.34.23.9-3.80.25.65.43.14.62.25.53.52.611.38.016.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax98.4219.45.2190.3336.4-311.63.9144.4134.9267.4-3.9155.0148.8-66.14.33.84.03.31.74.9-2.33.63.7-3.30.24.74.82.64.12.05.13.32.510.58.217.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:MaterialReconcilingItems0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments


Benefits
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value135311414118242144621281213742165151543514763136571380814700195961336214257149851555714911154361631415700148541528416465150251477016131154071556214920162511482014760145791639014585
Percentage of BenefitsLossesAndExpenses96.492.694.795.892.2108.596.197.297.193.8104.796.697.6101.695.896.095.896.598.795.0102.395.896.1103.899.894.494.696.995.497.894.596.597.488.792.083.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2632.52745.893.94369.23954.33983.296.34931.34556.54052.588.24468.15974.44149.790.093.190.291.7127.892.0103.080.689.791.392.978.984.481.885.287.388.090.793.982.494.688.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:BenefitsLossesAndExpenses us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, country:US


Benefits
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value7521645769689486826376076869666776721264165176894821971626520
Percentage of BenefitsLossesAndExpenses49.846.455.055.252.050.047.250.550.462.949.646.352.744.142.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2272.21992.92019.755.32639.92347.82038.342.62331.93854.02023.943.551.041.540.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments country:US0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, met:AsiaSegment


Benefits
Period End2021-06-302021-03-312020-06-302020-03-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value2454255724242526245723072345236524692346224322532351243223862500272626082524262327322681269329572818
Percentage of BenefitsLossesAndExpenses17.516.717.419.915.714.215.215.114.415.314.514.214.816.215.214.717.216.016.515.317.817.716.416.616.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax477.4496.5748.1732.215.313.414.419.613.915.412.213.213.015.012.813.114.514.314.814.216.717.115.217.117.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments met:AsiaSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, met:EMEASegment


Benefits
Period End2021-06-302021-03-312020-06-302020-03-31
Value677649586667
Percentage of BenefitsLossesAndExpenses4.84.24.25.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax131.7126.0180.9193.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments met:EMEASegment0.00.00.00.0

us-gaap:OperatingSegments, met:LatinAmericaSegment


Benefits
Period End2021-06-302021-03-312020-06-302020-03-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value1111112180910001022102910381049101610811044114010801237105911761237124210941203109710709971000913
Percentage of BenefitsLossesAndExpenses7.97.35.87.96.66.36.76.75.97.06.77.26.88.26.86.97.87.67.27.07.17.16.15.65.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax216.1217.7249.7289.96.36.06.48.75.77.15.76.76.07.75.76.26.66.86.46.56.76.85.65.85.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments met:LatinAmericaSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, met:MetLifeHoldingsSegment


Benefits
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value205220332192231921702204232823942241216024252275230921542617215624662388279727053239273929032883
Percentage of BenefitsLossesAndExpenses14.613.311.415.415.617.413.615.114.714.818.415.011.516.417.613.815.215.517.915.721.117.718.218.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax399.2394.811.3700.6669.8638.813.6764.9691.7640.915.5691.5704.0668.916.513.414.314.723.215.321.214.917.016.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments met:MetLifeHoldingsSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, met:UnitedStatesSegment


Benefits
Period End2021-06-302021-03-312020-06-302020-03-31
Value6993741164576968
Percentage of BenefitsLossesAndExpenses49.848.546.455.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1360.51439.01992.92019.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments met:UnitedStatesSegment0.00.00.00.0

us-gaap:OperatingSegments, srt:Asia


Benefits
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value26912424252625642512249124962556256223812480240924572307
Percentage of BenefitsLossesAndExpenses17.817.419.914.915.816.417.119.416.811.918.916.215.714.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax813.0748.1732.215.0802.6768.8740.716.3778.7725.9770.215.215.313.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments srt:Asia0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, srt:LatinAmerica


Benefits
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value919809100010041042120810421073103210991050115810221029
Percentage of BenefitsLossesAndExpenses6.15.87.95.86.67.97.28.16.85.58.07.86.66.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax277.6249.7289.95.9332.9372.8309.26.9313.7335.1326.17.36.36.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments srt:LatinAmerica0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, us-gaap:CorporateAndOther


Benefits
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value244370434337366377463569573470454522532509509524302345217251481511507811497460730493522531704496453467482474
Percentage of BenefitsLossesAndExpenses1.72.42.32.22.63.02.73.63.83.23.43.42.63.93.43.41.92.21.41.53.13.33.25.13.32.94.33.13.23.54.13.23.02.82.72.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax47.571.82.2101.8113.0109.32.7181.8176.9139.52.9158.7162.2158.13.23.31.82.11.81.43.22.83.04.53.12.53.82.62.93.13.83.02.92.62.82.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:CorporateAndOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, us-gaap:EMEA


Benefits
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value675586667670655643620633637634652640619617601
Percentage of BenefitsLossesAndExpenses4.54.25.33.94.14.24.34.84.23.25.04.34.03.83.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax203.9180.9193.33.9209.3198.5184.04.0193.6193.3202.54.03.83.63.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:EMEA0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value5319-7317.02194-1821.059514103-1552.05750646165492789-942.0-1889.0-1452.02784-192.029241875-10336.0-460.038778295-1286.01651-3971.030381178202842094439912-130.0-3876.01691991636376410394969783358976
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1034.8-1420.811.3-550.21836.71189.3-9.11837.11994.11943.317.8-286.3-575.9-450.917.6-1.217.011.5-85.6-2.625.445.0-7.59.2-24.616.26.210.823.026.04.9-0.8-24.71.01.19.920.56.50.334.119.66.1

Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value6.05.03.03.06.04.0-4.09.05.06.0-3.02.04.04.0-2.010.02.04.0-5.0-3.07.093-10.02.0-23.06323-56.0194333-58.05.0-9.073-19.0-1.0-15.0-54.0127.02.0
Percentage of ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.21.00.00.91.91.2-0.02.91.51.8-0.00.61.21.2-0.00.10.00.0-0.0-0.00.00.5-0.10.0-0.10.30.1-0.30.10.30.2-0.40.0-0.10.4-0.1-0.0-0.1-0.30.10.00.0

Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest


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
Value5325-7312.02197-1818.059574107-1556.05759646665552786-940.0-1885.0-1448.02782-182.029261879-10341.0-463.038848388-1296.01653-3994.031011201197242284482945-188.0-3881.0178202165537651054216696633511119-2944.0352335552665
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1036.0-1419.811.3-549.21838.61190.4-9.11839.91995.71945.117.8-285.7-574.7-449.717.6-1.117.011.5-85.6-2.625.545.5-7.69.2-24.716.66.310.523.126.25.1-1.2-24.71.01.210.020.56.61.334.119.57.0-22.928.325.020.2

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
Value1605134-33.0-20.0231-288.02071616115145117-227.0-333.0131-606.01048.0-367.02572661562382-133.0286230109-125.0-411.0-178.0-85.0110314-200.022-64.0-110.0-558.0-55.0-155.0-99.0-68.0-342.0-14.032
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 RevenueFromContractWithCustomerExcludingAssessedTax312.326.0-0.2-6.071.3-83.51.251.418.84.50.935.6-69.2-103.40.8-3.80.60.0-3.01.51.70.10.42.1-0.81.51.20.6-0.7-2.4-1.0-0.50.71.8-1.20.1-0.3-0.7-3.3-0.3-0.9-0.6-0.5-2.7-0.10.2

General And Administrative Expense

us-gaap:GeneralAndAdministrativeExpense

us-gaap:GeneralAndAdministrativeExpense


General
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
Value13510820817219119016827323722326290351243361229318221
Percentage of GeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax26.321.01.152.059.055.11.087.273.166.20.288.1107.075.52.31.41.81.4

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value44872911649231975643-37.0279122971744247110791101165610545011002817-3565.0548-100.029221135216311133059207629521950182612689765611247-477.0-1010.03338-409.01520530615101285-20.0385
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax873.056.50.8278.960.81635.7-0.2891.7709.0517.515.8328.0335.7514.36.73.15.85.0-29.53.1-0.715.96.712.06.916.310.915.710.710.76.96.03.67.1-2.8-6.118.1-2.69.125.98.88.1-0.23.1

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

met:MetLifePolandAndGreece


Income
Period End2021-06-302020-06-30
Value1315
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest0.37.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.54.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax met:MetLifePolandAndGreece0.00.0

met:MetropolitanPropertyAndCasualtyInsuranceCompany


Income
Period End2021-06-302021-03-312020-06-302020-03-31
Value0.0121119115
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest0.041.660.42.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.023.536.733.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax met:MetropolitanPropertyAndCasualtyInsuranceCompany0.00.00.00.0

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-17.0-14.0-22.0-21.0-22.0-21.0-30.0-29.0-30.0-29.0-27.0-31.0-31.0-31.0-42.0-40.0-41.0-44.0-48.0-46.0-51.0-48.0-58.0-57.0-57.0-57.0-44.0-45.0-46.0-45.0375-54.0-52.0-55.0
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest-0.4-4.8-13.4-2.3-11.2-0.481.1-1.0-1.3-1.7-1.1-2.9-2.8-1.9-4.0-8.0-4.1-5.41.3-8.451.0-1.6-5.1-2.6-5.1-1.9-2.1-1.5-2.4-2.529.6-5.5-9.3-4.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-3.3-2.7-0.1-6.3-6.8-6.1-0.2-9.3-9.3-8.6-0.2-9.4-9.5-9.6-0.3-0.2-0.2-0.3-0.4-0.3-0.3-0.3-0.3-0.3-0.4-0.3-0.2-0.2-0.3-0.32.0-0.3-0.3-0.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value131-174.0657457340-438.0489-337.09224-208.0-4.0-470.016560307429
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest2.9-59.8400.649.5172.6-7.8-1321.6-12.14.01.4-8.4-0.4-42.710.05.761.342.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax25.5-33.83.4138.1104.9-127.02.9-107.728.47.1-1.3-1.2-143.351.20.41.92.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value15-30.060644618752841272.08430-83.0-45.07836047-196.0-360.0173183-17.0-169.010217711324821417617337-95.0189280
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest0.3-10.336.66.923.43.3-140.53.05.50.13.42.8-7.5-2.77.471.94.7-24.010.131.6-183.0-0.6-14.94.715.93.711.97.29.09.52.9-9.733.722.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.9-5.80.319.314.254.20.326.839.20.60.59.1-25.3-14.00.52.20.3-1.2-3.01.01.2-0.1-1.00.61.10.61.31.11.01.00.2-0.61.21.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest

us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest


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
Value34123631587091504401588219017461385206291589412572315893887829-2086.057311422038421198111921631527209413761342915973508995105-957.02300-134.01127357212011055823221540833310-624.0-1420.0-585.0
Percentage of IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax663.870.50.8214.246.31275.73.4699.7538.9411.013.2278.1272.6390.414.65.55.15.1-17.33.20.712.04.96.66.911.68.011.17.57.95.06.03.25.60.6-5.812.5-0.86.717.57.06.60.62.610.86.32.5-6.1-17.2-5.7

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
Value1075-72.06.0214471242-625.0601551359409164207399-1322.0-392.0115-12.0-1479.0-25.0-214.0719293965-6.08965498585744843533.053252-582.0-53.01038-275.03941734519428-70.068827356
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 RevenueFromContractWithCustomerExcludingAssessedTax209.1-14.00.064.714.5360.0-3.6192.0170.1106.52.649.863.1123.9-8.3-2.40.7-0.1-12.2-0.1-1.43.91.75.4-0.04.82.94.63.12.81.90.00.31.4-3.4-0.35.6-1.72.48.53.02.7-0.50.55.82.7

Income Taxes Paid Net

us-gaap:IncomeTaxesPaidNet

us-gaap:IncomeTaxesPaidNet


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value467281448209165-35.02578664211412401184311468971283961092087126812522356019714733581235971389522721711214021983
Percentage of IncomeTaxesPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax90.954.62.363.150.9-10.11.527.5198.133.87.935.9131.445.35.70.82.30.71.70.41.80.71.33.11.20.81.80.41.30.60.70.61.41.20.60.81.20.5

Insurance Commissions And Fees

us-gaap:InsuranceCommissionsAndFees

us-gaap:InsuranceCommissionsAndFees


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
Value1422139113761497129914311386144014121365139713431370139213581428230223022280229622862344233323462434239424392628245824212417237223712291225021312097207819501998196918891698145214821405
Percentage of InsuranceCommissionsAndFees100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax276.7270.17.1452.3400.9414.88.1460.1435.8405.08.9408.2417.7432.38.68.913.314.118.913.015.012.713.713.015.112.812.813.913.514.213.114.515.113.013.012.911.413.111.69.811.511.913.211.710.410.7

us-gaap:InsuranceCommissionsAndFees us-gaap:ConsolidationItems

us-gaap:MaterialReconcilingItems


Insurance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value362533283146458848271943263229361111011039711319396999910010310698981009690809483
Percentage of InsuranceCommissionsAndFees2.51.82.41.92.43.23.26.13.42.01.43.21.92.32.12.54.84.44.54.24.98.24.14.24.14.24.24.04.04.04.14.03.83.54.23.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.04.90.28.59.613.30.328.114.88.00.113.17.99.90.20.20.60.60.90.50.71.00.60.50.60.50.50.60.50.60.50.60.60.50.50.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:MaterialReconcilingItems0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments


Insurance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value138613661343146912681385134113521364133813781300134413601329139221912201217721992173215122372247233522942336252223602323231722762281221121562048
Percentage of InsuranceCommissionsAndFees97.598.297.698.197.696.896.893.996.698.098.696.898.197.797.997.595.295.695.595.895.191.895.995.895.995.895.896.096.096.095.996.096.296.595.896.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax269.6265.26.9443.8391.4401.47.8431.9421.0397.08.8395.1409.8422.48.48.612.713.518.012.414.311.713.112.514.412.312.213.412.913.612.613.914.512.512.412.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:InsuranceCommissionsAndFees us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, country:US


Insurance
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value263268275270264274270281252262258249247251265
Percentage of InsuranceCommissionsAndFees17.620.619.219.518.319.419.820.118.819.118.518.317.310.911.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax79.582.779.71.684.384.680.11.876.679.980.11.61.51.51.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments country:US0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, met:AsiaSegment


Insurance
Period End2021-06-302021-03-312020-06-302020-03-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value436458420430458375366373394370350363382400397417487400389398438442444389388
Percentage of InsuranceCommissionsAndFees30.732.932.330.032.116.315.916.417.216.214.915.616.316.416.617.118.516.316.116.518.518.619.417.318.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax84.888.9129.6124.62.82.22.23.12.22.41.92.12.12.52.12.22.62.22.32.22.72.82.52.22.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments met:AsiaSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, met:EMEASegment


Insurance
Period End2021-06-302021-03-312020-06-302020-03-31
Value1076792116
Percentage of InsuranceCommissionsAndFees7.54.87.18.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax20.813.028.433.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments met:EMEASegment0.00.00.00.0

us-gaap:OperatingSegments, met:LatinAmericaSegment


Insurance
Period End2021-06-302021-03-312020-06-302020-03-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value287270238270229275260261227269268260261301294283328317311309222235225204189
Percentage of InsuranceCommissionsAndFees20.219.418.318.916.011.911.311.49.911.811.411.111.112.412.311.612.512.912.812.89.49.99.89.18.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax55.852.473.578.31.41.61.62.21.31.81.51.51.41.91.61.51.71.71.81.71.41.51.31.21.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments met:LatinAmericaSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, met:MetLifeHoldingsSegment


Insurance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value273274261269249294280284286274317286301314305349345362363357361355365370
Percentage of InsuranceCommissionsAndFees19.219.719.018.019.220.520.219.720.320.122.721.322.022.622.524.415.015.715.915.515.815.115.615.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax53.153.21.381.376.985.21.690.788.381.32.086.991.897.51.92.22.02.23.02.02.41.92.12.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments met:MetLifeHoldingsSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, met:UnitedStatesSegment


Insurance
Period End2021-06-302021-03-312020-06-302020-03-31
Value282297268275
Percentage of InsuranceCommissionsAndFees19.821.420.619.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax54.957.782.779.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments met:UnitedStatesSegment0.00.00.00.0

us-gaap:OperatingSegments, srt:Asia


Insurance
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value595420430419430419406409428399394385458375
Percentage of InsuranceCommissionsAndFees39.732.330.030.229.929.729.729.331.929.128.328.432.116.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax179.8129.6124.62.4137.4129.3120.52.6130.1121.6122.42.42.82.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments srt:Asia0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, srt:LatinAmerica


Insurance
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value225238270274256280284264229275282280229275
Percentage of InsuranceCommissionsAndFees15.018.318.919.817.819.820.818.917.120.120.320.616.011.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax68.073.578.31.681.886.484.31.769.683.887.61.81.41.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments srt:LatinAmerica0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, us-gaap:CorporateAndOther


Insurance
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value1.01.01.01.00.00.01.00.01.00.00.00.00.01.00.0-32.0-31.0-32.0-31.025242426262331293433343435363838
Percentage of InsuranceCommissionsAndFees0.10.10.10.10.00.00.10.00.10.00.00.00.00.10.0-1.4-1.3-1.4-1.41.11.01.01.11.11.01.31.11.41.41.41.41.51.61.71.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.20.00.30.30.00.00.30.00.30.00.00.00.00.00.0-0.2-0.2-0.3-0.20.20.10.10.10.20.10.20.20.20.20.20.20.20.20.20.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:CorporateAndOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, us-gaap:EMEA


Insurance
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value11692116981171051031071051071121091099295
Percentage of InsuranceCommissionsAndFees7.77.18.17.18.17.47.57.77.87.88.08.07.64.04.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax35.028.433.60.637.432.430.60.731.932.634.80.70.70.50.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:EMEA0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Interest And Debt Expense

us-gaap:InterestAndDebtExpense

us-gaap:InterestAndDebtExpense


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value228228230229232222224223274234260267309286278284295296291292306312300302308298297295312312323317321321330326342358369425420415414397369
Percentage of InterestAndDebtExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax44.444.31.269.271.664.31.371.284.669.41.781.294.288.81.81.81.71.82.41.62.01.71.81.71.91.61.61.61.71.81.71.92.01.81.92.01.92.22.22.12.42.63.23.22.6

us-gaap:InterestAndDebtExpense us-gaap:ConsolidationItems

us-gaap:MaterialReconcilingItems


Interest
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value0.01.00.00.00.00.00.00.01815300.00.00.01.00.0-1.01.03.00.0-2.08.01.01.04.03.01318272934333840
Percentage of InterestAndDebtExpense0.00.40.00.00.00.00.00.06.95.69.70.00.00.00.30.0-0.30.31.00.0-0.72.60.30.31.31.04.25.88.49.110.610.311.512.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.20.00.00.00.00.00.00.14.69.10.00.00.00.00.0-0.00.00.00.0-0.00.00.00.00.00.00.10.10.10.20.20.20.20.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:MaterialReconcilingItems0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value228227230229232222224223274234242252279286278284294296292291303312302294307297293292299294296288287288292286
Percentage of InterestAndDebtExpense100.099.6100.0100.0100.0100.0100.0100.0100.0100.093.194.490.3100.0100.0100.099.7100.0100.399.799.0100.0100.797.499.799.798.799.095.894.291.690.989.489.788.587.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax44.444.11.269.271.664.31.371.284.669.41.576.685.188.81.81.81.71.82.41.62.01.71.81.61.91.61.51.51.61.71.61.81.81.61.71.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:InterestAndDebtExpense us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, country:US


Interest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value2.02.02.02.03.03.02.04.02.04.02.03.02.04.02.0
Percentage of InterestAndDebtExpense0.90.90.90.91.31.10.91.50.71.30.71.10.71.40.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.60.60.60.01.00.90.60.00.61.20.60.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments country:US0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, met:LatinAmericaSegment


Interest
Period End2021-06-302021-03-312020-06-302020-03-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value1.01.01.01.01.02.01.01.01.00.00.00.00.00.00.00.00.00.00.00.00.01.0-1.02.0-4.0
Percentage of InterestAndDebtExpense0.40.40.40.50.40.70.30.30.30.00.00.00.00.00.00.00.00.00.00.00.00.3-0.30.6-1.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.20.20.30.30.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0-0.00.0-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments met:LatinAmericaSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, met:MetLifeHoldingsSegment


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value2.01.01.02.01.02.02.02.02.02.03.02.02.02.02.02.05.015141514141413
Percentage of InterestAndDebtExpense0.90.40.40.90.40.90.90.90.70.91.20.70.60.70.70.71.75.14.85.14.64.54.74.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.40.20.00.60.30.60.00.60.60.60.00.60.60.60.00.00.00.10.10.10.10.10.10.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments met:MetLifeHoldingsSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, met:UnitedStatesSegment


Interest
Period End2021-06-302021-03-312020-06-302020-03-31
Value2.01.02.02.0
Percentage of InterestAndDebtExpense0.90.40.90.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.40.20.60.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments met:UnitedStatesSegment0.00.00.00.0

us-gaap:OperatingSegments, srt:LatinAmerica


Interest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value1.01.01.01.00.01.01.01.02.01.02.01.01.02.0
Percentage of InterestAndDebtExpense0.40.40.50.40.00.40.40.40.70.30.70.40.40.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.30.30.00.00.30.30.00.60.30.60.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments srt:LatinAmerica0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, us-gaap:CorporateAndOther


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value223224226224228217219218268229234246272280272279257246243241299308301294306297287291297292293286283286290285
Percentage of InterestAndDebtExpense97.898.298.397.898.397.797.897.897.897.990.092.188.097.997.898.287.183.183.582.597.798.7100.397.499.499.796.698.695.293.690.790.288.289.187.987.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax43.443.51.267.770.462.91.369.682.768.01.574.882.987.01.71.71.51.52.01.42.01.71.81.61.91.61.51.51.61.71.61.81.81.61.71.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:CorporateAndOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Interest Credited To Policyholders Account Balances

us-gaap:InterestCreditedToPolicyholdersAccountBalances

us-gaap:InterestCreditedToPolicyholdersAccountBalances


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
Value1515135117561416196280148815001515196148613341424769152613381562171216361820150013261670647129819951948181717091469214316001846259020482102102225571499738144219241471126410481142
Percentage of InterestCreditedToPolicyholdersAccountBalances100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax294.7262.39.0427.8605.623.28.7479.2467.6581.93.1405.5434.1238.89.68.39.110.513.510.39.87.29.83.68.010.710.29.69.48.611.69.811.714.611.812.75.616.19.03.68.412.111.510.27.48.7

us-gaap:InterestCreditedToPolicyholdersAccountBalances met:ASU201712AccountingPronouncement

met:EffectsofDerivativesonConsolidatedStatementsofOperationsandComprehensiveIncomeLoss


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-38.0-39.0-34.0-36.0-38.0-44.0-37.0-41.0-36.0-32.0-34.0-28.0-28.0-23.0
Percentage of InterestCreditedToPolicyholdersAccountBalances-2.5-2.9-1.9-2.5-1.9-55.0-2.5-2.7-2.4-1.6-7.0-2.1-2.0-3.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-7.4-7.6-0.2-10.9-11.7-12.8-0.2-13.1-11.1-9.5-0.2-8.5-8.5-7.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax met:EffectsofDerivativesonConsolidatedStatementsofOperationsandComprehensiveIncomeLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:InterestCreditedToPolicyholdersAccountBalances us-gaap:ConsolidationItems

us-gaap:MaterialReconcilingItems


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value365210611267801-1138.0245226251713-731.0132267-348.042023321340231750518625340-684.0-44.0664539391284686751283251036459513
Percentage of InterestCreditedToPolicyholdersAccountBalances24.115.534.818.940.8-1422.516.515.116.636.4-150.49.918.8-45.327.517.413.623.519.427.712.41.920.4-105.7-3.433.327.721.516.64.631.58.017.640.022.424.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax71.040.83.180.7247.2-329.91.472.277.5211.6-4.740.181.4-108.12.71.41.22.52.62.81.20.12.0-3.8-0.33.52.82.11.60.43.70.82.15.92.63.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:MaterialReconcilingItems0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value115011411145114911611218124312741264124812171202115711171106110513491310131913151314130113301331134213311409142614251401146814721521155415891589
Percentage of InterestCreditedToPolicyholdersAccountBalances75.984.565.281.159.21522.583.584.983.463.6250.490.181.2145.372.582.686.476.580.672.387.698.179.6205.7103.466.772.378.583.495.468.592.082.460.077.675.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax223.7221.65.9347.1358.3353.07.3407.0390.1370.37.8365.3352.7346.97.06.97.88.110.97.48.67.17.87.48.37.17.47.67.88.28.09.09.78.89.29.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:InterestCreditedToPolicyholdersAccountBalances us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, country:US


Interest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value381412458472507504501487457439407388376359351
Percentage of InterestCreditedToPolicyholdersAccountBalances26.921.0572.531.733.833.325.5100.234.330.852.925.428.123.020.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax115.1127.2132.82.8162.0155.6148.73.1138.9133.8126.42.42.32.12.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments country:US0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, met:AsiaSegment


Interest
Period End2021-06-302021-03-312020-06-302020-03-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value496489447445349333321324331324319317327328337369394394387404407437442461468
Percentage of InterestCreditedToPolicyholdersAccountBalances32.736.222.8556.226.121.318.819.818.221.624.119.050.525.316.918.921.723.126.318.925.423.717.122.522.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax96.595.0138.0129.02.21.92.02.71.92.11.71.91.82.01.81.92.12.22.32.22.52.82.52.72.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments met:AsiaSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, met:EMEASegment


Interest
Period End2021-06-302021-03-312020-06-302020-03-31
Value25242727
Percentage of InterestCreditedToPolicyholdersAccountBalances1.71.81.433.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.94.78.37.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments met:EMEASegment0.00.00.00.0

us-gaap:OperatingSegments, met:LatinAmericaSegment


Interest
Period End2021-06-302021-03-312020-06-302020-03-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value60595670999482798584808688898699971009810410610310410499
Percentage of InterestCreditedToPolicyholdersAccountBalances4.04.42.987.57.46.04.84.84.75.66.05.113.66.94.35.15.35.96.74.96.65.64.05.14.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.711.517.320.30.60.50.50.70.50.60.40.50.50.60.50.50.50.50.60.60.60.70.60.60.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments met:LatinAmericaSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, met:MetLifeHoldingsSegment


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value210210214217219218224228227226235238235236251255255257262261261258269266
Percentage of InterestCreditedToPolicyholdersAccountBalances13.915.512.215.311.2272.515.115.215.011.548.417.816.530.716.419.116.315.016.014.317.419.516.141.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax40.940.81.165.667.663.21.372.870.167.11.572.371.673.31.61.61.51.62.21.51.71.41.61.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments met:MetLifeHoldingsSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, met:UnitedStatesSegment


Interest
Period End2021-06-302021-03-312020-06-302020-03-31
Value359359412458
Percentage of InterestCreditedToPolicyholdersAccountBalances23.726.621.0572.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax69.869.7127.2132.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments met:UnitedStatesSegment0.00.00.00.0

us-gaap:OperatingSegments, srt:Asia


Interest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value470447445443440424403371381362351348349333
Percentage of InterestCreditedToPolicyholdersAccountBalances33.222.8556.229.829.328.020.676.328.625.445.622.826.121.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax142.0138.0129.02.6140.6130.9119.62.4115.8110.4109.02.22.21.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments srt:Asia0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, srt:LatinAmerica


Interest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value52567078748694991029598949994
Percentage of InterestCreditedToPolicyholdersAccountBalances3.72.987.55.24.95.74.820.47.66.712.76.27.46.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15.717.320.30.523.626.527.90.631.029.030.40.60.60.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments srt:LatinAmerica0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, us-gaap:EMEA


Interest
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value292727262523242524262525262524
Percentage of InterestCreditedToPolicyholdersAccountBalances2.01.433.81.71.71.51.25.11.81.83.31.61.91.61.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.88.37.80.28.07.17.10.27.37.97.80.20.20.10.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:EMEA0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:InterestCreditedToPolicyholdersAccountBalances us-gaap:HedgingDesignation, us-gaap:IncomeStatementLocation

us-gaap:Nondesignated, us-gaap:NonoperatingIncomeExpense


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value3839343638-44.0-37.0-42.0-36.0-32.0-34.0-28.0-28.0-23.0
Percentage of InterestCreditedToPolicyholdersAccountBalances2.52.91.92.51.9-55.0-2.5-2.8-2.4-1.6-7.0-2.1-2.0-3.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.47.60.210.911.7-12.8-0.2-13.4-11.1-9.5-0.2-8.5-8.5-7.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Nondesignated us-gaap:NonoperatingIncomeExpense0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Interest Paid Net

us-gaap:InterestPaidNet

us-gaap:InterestPaidNet


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value287153312153290136317137362148321217349243312
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax55.829.71.646.289.539.41.843.8111.743.92.066.0106.475.52.0

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
Value34073581587061454398593218417411381206791289112532317-81.0884826-2088.057711022018341203111521581521209413661328908972502986127-954.02295-144.01156358212371006823161557835320-620.0-1402.0-544.0
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 RevenueFromContractWithCustomerExcludingAssessedTax662.869.50.8213.344.81274.83.5697.8537.3409.813.2277.2271.6389.114.6-0.55.15.1-17.33.30.711.94.96.76.911.58.011.17.57.84.95.93.25.60.7-5.812.5-0.96.917.57.26.30.62.510.96.32.6-6.1-17.0-5.3

Net Income Loss Attributable To Noncontrolling Interest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest


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
Value5.05.00.03.05.03.0-5.06.05.04.0-5.03.03.04.0-2.06.03.03.02.0-4.04.02.08.0-5.04.05.06.00.010.0118.03.0-8.0-6.0-9.03.0-8.0-24.04.06.0-7.07.03.04.0-10.0-1.0-7.0-5.0-16.0-4.0
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.01.00.00.91.50.9-0.01.91.51.2-0.00.90.91.2-0.00.00.00.00.0-0.00.00.00.0-0.00.00.00.00.00.10.10.00.0-0.1-0.0-0.10.0-0.0-0.20.00.0-0.00.00.00.0-0.1-0.0-0.1-0.0-0.2-0.0

Net Income Loss Available To Common Stockholders Basic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic


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
Value3366290124633684366536215216841349201088084512472272-87.0838820-2133.0571642195785119710422128149020641335129887794247195696-984.02264-174.0112535521206830512861526805289-650.0-1433.0-574.0
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax654.956.30.6191.221.01265.53.1687.5519.8400.312.8267.5257.6387.314.3-0.54.95.0-17.73.20.411.94.66.66.411.47.811.07.37.64.85.83.05.40.6-6.012.3-1.16.717.47.05.20.42.310.76.12.3-6.3-17.3-5.6

Net Investment Income

us-gaap:NetInvestmentIncome

us-gaap:NetInvestmentIncome


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value5280531452404729408730614644462346934908346244864473374544544295495951965037546448874559491439594947546154495410525950355847502652826077554855174719620049374257509853174870436440614321
Percentage of NetInvestmentIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1027.21031.827.01428.71261.4887.227.11477.01448.51456.422.11363.51363.71163.028.126.728.831.941.730.832.124.728.822.030.629.228.528.728.829.531.730.833.634.432.033.425.639.029.520.829.733.437.935.128.532.8

Operating Expenses

us-gaap:OperatingExpenses

us-gaap:OperatingExpenses


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2881315034243470298332733631344333903225339534693485336537173318405935643703392832464192410445334072406044884218422241634462397740254138441442454775432143205013449539023473298934092932
Percentage of OperatingExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax560.5611.717.61048.3920.7948.721.21100.01046.3957.021.71054.41062.51045.023.520.623.521.930.722.221.322.724.125.125.221.723.522.423.124.424.224.325.623.425.525.726.027.125.824.526.224.527.124.023.922.2

us-gaap:OperatingExpenses met:ASU201712AccountingPronouncement

met:EffectsofDerivativesonConsolidatedStatementsofOperationsandComprehensiveIncomeLoss


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
Value1.01.01.01.01.01.01.01.01.01.0-2.0-2.0-3.0-1.0
Percentage of OperatingExpenses0.00.00.00.00.00.00.00.00.00.0-0.1-0.1-0.1-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.20.20.00.30.30.30.00.30.30.3-0.0-0.6-0.9-0.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax met:EffectsofDerivativesonConsolidatedStatementsofOperationsandComprehensiveIncomeLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:CurrencySwap, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Operating
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value1.01.00.01.01.00.01.00.01.00.00.01.01.00.00.0
Percentage of OperatingExpenses0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.20.00.00.30.00.00.30.00.00.00.00.30.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CurrencySwap us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:InterestRateContract, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


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
Value0.01.00.01.00.01.00.01.00.01.00.00.01.00.0
Percentage of OperatingExpenses0.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.20.00.30.00.30.00.30.00.30.00.00.30.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:InterestRateContract us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingExpenses us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship

us-gaap:CashFlowHedging


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
Value1.01.01.01.01.01.01.01.01.01.01.00.01.01.0
Percentage of OperatingExpenses0.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.20.20.00.30.30.30.00.30.30.30.00.00.30.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CashFlowHedging0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingExpenses us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:InvestmentType

us-gaap:CashFlowHedging, us-gaap:CurrencySwap


Operating
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1.01.00.01.00.01.00.01.00.01.00.00.01.0
Percentage of OperatingExpenses0.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.20.00.00.30.00.00.00.30.00.00.00.00.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CashFlowHedging us-gaap:CurrencySwap0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CashFlowHedging, us-gaap:InterestRateContract


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
Value0.01.00.01.00.01.00.01.00.01.00.00.01.00.0
Percentage of OperatingExpenses0.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.20.00.30.00.30.00.30.00.30.00.00.30.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CashFlowHedging us-gaap:InterestRateContract0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingExpenses us-gaap:ReasonablyPossibleSignificantChangeInUnrecognizedTaxBenefitsByItem

us-gaap:SettlementWithTaxingAuthority


Operating
Period End2020-12-312019-12-312018-12-31
Value2886229
Percentage of OperatingExpenses0.82.46.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.51.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:SettlementWithTaxingAuthority0.00.00.0

Operating Income Loss

us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems

us-gaap:OperatingIncomeLoss

us-gaap:OperatingSegments


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value21242033187216378351481189112221376145613931408137214296851174145315521460142797013351425711179616681614185516211592159015301616165714041447
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax413.2394.89.6494.6257.7429.311.0390.4424.7432.08.9428.0418.3443.84.37.38.49.512.18.16.47.28.43.911.18.98.49.88.99.38.69.410.39.48.18.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:OperatingSegments, country:US


Operating
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value900523780675707732724685795671653498539493497
Percentage of OperatingIncomeLoss55.062.652.735.757.953.249.749.256.548.945.772.745.933.932.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax271.9161.4226.13.9225.9225.9214.84.4241.6204.6202.83.13.32.93.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments country:US0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, met:AsiaSegment


Operating
Period End2021-06-302021-03-312020-06-302020-03-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value520623256350314310295354324259305290338425327335306319328324257330333198259
Percentage of OperatingIncomeLoss24.530.630.723.626.721.319.024.222.726.722.820.447.523.719.620.816.519.720.620.416.820.420.114.117.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax101.2121.079.0101.41.91.81.82.91.81.71.71.71.92.61.71.81.61.71.91.81.62.11.91.11.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments met:AsiaSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, met:EMEASegment


Operating
Period End2021-06-302021-03-312020-06-302020-03-31
Value947111678
Percentage of OperatingIncomeLoss4.43.513.95.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax18.313.835.822.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments met:EMEASegment0.00.00.00.0

us-gaap:OperatingSegments, met:LatinAmericaSegment


Operating
Period End2021-06-302021-03-312020-06-302020-03-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value974013295163154143122133128137150176116131187152160183173133125143148152
Percentage of OperatingIncomeLoss4.62.015.86.413.910.69.28.49.313.210.310.524.86.57.911.68.29.911.510.98.77.78.610.510.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax18.97.840.727.51.00.90.91.00.80.80.70.91.00.70.71.00.80.91.10.90.80.80.80.90.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments met:LatinAmericaSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, met:MetLifeHoldingsSegment


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value53661842625320277269149299317223327280425152410235385199266-33.0267265243
Percentage of OperatingIncomeLoss25.230.422.815.52.418.714.212.221.721.816.023.220.429.722.234.916.224.813.618.6-3.420.018.634.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax104.3120.02.276.46.280.31.647.692.394.11.499.485.4132.01.02.51.42.41.61.5-0.21.41.61.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments met:MetLifeHoldingsSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, met:UnitedStatesSegment


Operating
Period End2021-06-302021-03-312020-06-302020-03-31
Value902784523780
Percentage of OperatingIncomeLoss42.538.662.652.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax175.5152.2161.4226.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments met:UnitedStatesSegment0.00.00.00.0

us-gaap:OperatingSegments, srt:Asia


Operating
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value465256350341349359356281266363327310314310
Percentage of OperatingIncomeLoss28.430.723.618.028.626.124.520.218.926.522.945.326.721.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax140.579.0101.42.0111.5110.8105.61.880.9110.7101.62.01.91.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments srt:Asia0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, srt:LatinAmerica


Operating
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value3913295161155159134137170145140125163154
Percentage of OperatingIncomeLoss2.415.86.48.512.711.69.29.812.110.69.818.213.910.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.840.727.50.949.549.139.80.951.744.243.50.81.00.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments srt:LatinAmerica0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, us-gaap:CorporateAndOther


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value-25.0-103.0-164.0-72.0-212.0-99.0379-191.0-250.0-161.012-205.0-173.0-197.0-460.0-330.0-100.0-93.0-133.010.0-188.0-171.0-151.0-956.0-122.0-110.0-285.0-43.0-182.0-162.0-243.0-130.0-109.0-56.0-106.0-104.0
Percentage of OperatingIncomeLoss-1.2-5.1-8.8-4.4-25.4-6.720.0-15.6-18.2-11.10.9-14.6-12.6-13.8-67.2-28.1-6.9-6.0-9.10.7-19.4-12.8-10.6-134.5-6.8-6.6-17.7-2.3-11.2-10.2-15.3-8.5-6.7-3.4-7.5-7.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-4.9-20.0-0.8-21.8-65.4-28.72.2-61.0-77.2-47.80.1-62.3-52.7-61.2-2.9-2.0-0.6-0.6-1.10.1-1.2-0.9-0.9-5.3-0.8-0.6-1.5-0.2-1.0-0.9-1.3-0.8-0.7-0.3-0.6-0.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:CorporateAndOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, us-gaap:EMEA


Operating
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value5211678665377865555868179717275
Percentage of OperatingIncomeLoss3.213.95.33.54.35.65.93.93.96.35.711.56.05.04.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15.735.822.60.416.923.825.50.416.726.225.20.50.40.40.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:EMEA0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value1913-7675.0-2527.05807-294.0356947205170724-1855.0-2779.0-2705.0403-107.020391050-8255.0-1036.037706185-2138.0455-5113.0938-326.0-122.02852314329-1163.0-4391.0-814.070260514581190-957.0
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax372.2-1490.3-763.41792.3-85.21140.31456.81534.14.6-563.8-847.3-840.12.5-0.711.86.5-68.4-5.824.733.6-12.52.5-31.65.0-1.7-0.615.618.40.2-7.1-27.9-4.60.415.87.97.5-5.7

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value1912-7675.0-2527.05806-295.0356647205168722-1854.0-2780.0-2705.0403-111.020401049-8248.0-1037.037676094-2120.0448
Percentage of OtherComprehensiveIncomeLossNetOfTax99.9100.0100.0100.0100.399.9100.0100.099.799.9100.0100.0100.0103.7100.099.999.9100.199.998.599.298.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax372.0-1490.3-763.41792.0-85.51139.31456.81533.54.6-563.5-847.6-840.12.5-0.711.86.4-68.3-5.924.733.1-12.42.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NoncontrollingInterest


Other
Period End2021-06-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value1.01.01.03.00.02.02.0-1.01.00.00.04.0-1.01.0-7.01.03.091-18.07.0-27.05817-56.09.03225-61.0-13.03.0-2.015-11.07.0-16.0
Percentage of OtherComprehensiveIncomeLossNetOfTax0.10.0-0.30.10.00.00.30.1-0.0-0.00.0-3.7-0.00.10.1-0.10.11.50.81.50.56.2-5.245.90.31.086.25.20.3-0.4-2.90.6-0.80.61.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.20.30.31.00.00.60.0-0.30.30.00.00.0-0.00.0-0.10.00.00.5-0.10.0-0.20.30.1-0.30.00.20.1-0.4-0.10.0-0.00.1-0.10.0-0.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-31
Value1912-7675.0-2527.05806-295.0356647205168722-1854.0-2780.0-2705.0403-111.020401049-8248.0-1037.037676094-2120.0448-5086.0880-343.0-66.0284331114.0-1102.0-4378.0-817.072259014691183-941.0
Percentage of OtherComprehensiveIncomeLossNetOfTax99.9100.0100.0100.0100.399.9100.0100.099.799.9100.0100.0100.0103.7100.099.999.9100.199.998.599.298.599.593.8105.254.199.799.013.894.899.7100.4102.999.4100.899.498.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax372.0-1490.3-763.41792.0-85.51139.31456.81533.54.6-563.5-847.6-840.12.5-0.711.86.4-68.3-5.924.733.1-12.42.5-31.54.7-1.8-0.415.618.20.0-6.7-27.8-4.60.415.78.07.4-5.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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
Value664631499455456439451419478494452479475474406301382374419366487487486484518495544518490478474476490480461455393597654720592566647624544513
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 RevenueFromContractWithCustomerExcludingAssessedTax129.2122.52.6137.5140.7127.22.6133.9147.5146.62.9145.6144.8147.22.61.92.22.33.52.13.22.62.92.73.22.62.82.72.72.82.62.93.12.72.72.82.13.83.93.53.53.65.05.03.83.9

us-gaap:OtherIncome us-gaap:ConsolidationItems

us-gaap:MaterialReconcilingItems


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value60463939394244727170758383836.0-14.05.06.0-2.07.03.00.0-9.0-11.0-9.0-8.0130.0-3.0-13.0-13.0-10.0-10.0-1.01820
Percentage of OtherIncome9.07.37.88.68.69.69.817.214.914.216.617.317.517.51.5-4.71.31.6-0.51.90.60.0-1.9-2.3-1.7-1.62.40.0-0.6-2.7-2.7-2.1-2.0-0.23.94.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.78.90.211.812.012.20.323.021.920.80.525.225.325.80.0-0.10.00.0-0.00.00.00.0-0.1-0.1-0.1-0.00.10.0-0.0-0.1-0.1-0.1-0.1-0.00.10.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:MaterialReconcilingItems0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value604585460416417397407347407424377396392391400315377368421359484487495495527503531518493491487486500481443435
Percentage of OtherIncome91.092.792.291.491.490.490.282.885.185.883.482.782.582.598.5104.798.798.4100.598.199.4100.0101.9102.3101.7101.697.6100.0100.6102.7102.7102.1102.0100.296.195.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax117.5113.62.4125.7128.7115.12.4110.9125.6125.82.4120.4119.5121.42.52.02.22.33.52.03.22.62.92.73.32.72.82.72.72.92.63.03.22.72.62.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:OperatingSegments, country:US


Other
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value237240240219224223221208206203204206197199204
Percentage of OtherIncome52.152.654.748.653.546.744.746.043.042.743.050.765.452.154.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax71.674.169.61.371.668.865.61.362.661.963.41.31.21.21.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments country:US0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, met:AsiaSegment


Other
Period End2021-06-302021-03-312020-06-302020-03-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value19181414111110.0161216172326282828272427292228139.04.0
Percentage of OtherIncome2.92.93.13.23.72.92.73.83.33.33.54.75.45.45.75.15.24.95.66.14.65.72.72.00.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.73.54.34.10.10.10.10.10.10.10.10.10.10.20.10.10.10.10.20.20.10.20.10.10.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments met:AsiaSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, met:EMEASegment


Other
Period End2021-06-302021-03-312020-06-302020-03-31
Value16131113
Percentage of OtherIncome2.42.12.43.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.12.53.43.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments met:EMEASegment0.00.00.00.0

us-gaap:OperatingSegments, met:LatinAmericaSegment


Other
Period End2021-06-302021-03-312020-06-302020-03-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value1110.010.0117.08.09.08.0119.07.014117.010.0117.09.07.0140.05.04.05.03.0
Percentage of OtherIncome1.71.62.22.52.32.12.41.93.01.81.42.92.31.42.02.01.41.81.53.00.01.00.81.10.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.11.93.13.20.00.00.10.10.10.10.00.10.10.00.10.10.00.00.00.10.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments met:LatinAmericaSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, met:MetLifeHoldingsSegment


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value69627261703569526567457068677437379669105203204219223
Percentage of OtherIncome10.49.814.413.415.48.015.312.413.613.610.014.614.314.118.212.39.725.716.528.741.741.945.146.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.412.00.418.421.610.10.416.620.119.90.321.320.720.80.50.20.20.60.60.61.31.11.31.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments met:MetLifeHoldingsSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, met:UnitedStatesSegment


Other
Period End2021-06-302021-03-312020-06-302020-03-31
Value380396240240
Percentage of OtherIncome57.262.852.654.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax73.976.974.169.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments met:UnitedStatesSegment0.00.00.00.0

us-gaap:OperatingSegments, srt:Asia


Other
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value1614141314131611121315111111
Percentage of OtherIncome3.53.13.22.93.32.73.22.42.52.73.22.73.72.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.84.34.10.14.54.04.70.13.64.04.70.10.10.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments srt:Asia0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, srt:LatinAmerica


Other
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value7.010.011138.01112117.09.08.08.07.08.0
Percentage of OtherIncome1.52.22.52.91.92.32.42.41.51.91.72.02.32.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.13.13.20.12.63.43.60.12.12.72.50.10.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments srt:LatinAmerica0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, us-gaap:CorporateAndOther


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value1098610682728479368294878679818665-68.0-42.0-137.0-28.027272423192029135.0216.05.04.0136.08.0
Percentage of OtherIncome16.413.621.218.015.819.117.58.617.219.019.218.016.617.121.221.6-17.8-11.2-32.7-7.75.55.54.94.83.74.05.32.51.04.41.31.10.82.71.31.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax21.216.70.524.822.224.30.511.525.327.90.626.124.125.20.50.4-0.4-0.3-1.1-0.20.20.10.10.10.10.10.20.10.00.10.00.00.00.10.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:CorporateAndOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, us-gaap:EMEA


Other
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value131113141313141515201615-2.02817
Percentage of OtherIncome2.92.43.03.13.12.72.83.33.14.23.43.7-0.77.34.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.93.43.80.14.24.04.20.14.66.15.00.1-0.00.20.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:EMEA0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OtherIncome us-gaap:IncomeStatementLocation

us-gaap:OtherIncome


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value15011614512413294136106154157175150147152
Percentage of OtherIncome22.618.429.127.328.921.430.225.332.231.838.731.330.932.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax29.222.50.737.540.727.20.833.947.546.61.145.644.847.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OtherIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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
Value9405105231377210000866790221174810648999390728992100801486687189390106451030298599997108551027496789771103349352925710278951299889324102809472896093951102989438911910490909017911982317842730969307464
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 RevenueFromContractWithCustomerExcludingAssessedTax1829.82043.370.93021.12675.02615.168.53401.93084.32692.057.43063.84532.32707.559.366.159.760.682.861.267.452.557.357.357.849.553.850.554.754.655.758.057.053.163.654.248.457.254.344.153.251.761.158.748.656.6

us-gaap:PolicyholderBenefitsAndClaimsIncurredNet met:ASU201712AccountingPronouncement

met:EffectsofDerivativesonConsolidatedStatementsofOperationsandComprehensiveIncomeLoss


Policyholder
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-48.0-124.0-60.0-51.0292-80.05710.0-43.0128-38.0-40.09.0
Percentage of PolicyholderBenefitsAndClaimsIncurredNet-0.5-1.2-0.6-0.63.2-0.70.50.1-0.51.4-0.4-0.30.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-9.3-24.1-18.1-15.784.6-0.518.23.1-12.80.8-11.6-12.22.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax met:EffectsofDerivativesonConsolidatedStatementsofOperationsandComprehensiveIncomeLoss0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:PolicyholderBenefitsAndClaimsIncurredNet us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:InvestmentType

us-gaap:InterestRateSwap, us-gaap:FairValueHedging, us-gaap:DebtSecurities


Policyholder
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value242-573.0-214.013917-769.0202-237.0-206.0-128.00.00.00.00.0
Percentage of PolicyholderBenefitsAndClaimsIncurredNet2.6-5.4-1.61.40.2-8.51.7-2.2-2.1-1.40.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax47.1-111.3-1.142.05.2-222.91.2-75.7-63.6-38.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:InterestRateSwap us-gaap:FairValueHedging us-gaap:DebtSecurities0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:InterestRateSwap, us-gaap:FairValueHedging, us-gaap:Derivative


Policyholder
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value237-602.0-229.015431774-216.02232051270.00.00.00.0
Percentage of PolicyholderBenefitsAndClaimsIncurredNet2.5-5.7-1.71.50.48.6-1.82.12.11.40.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax46.1-116.9-1.246.59.6224.3-1.371.263.337.70.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:InterestRateSwap us-gaap:FairValueHedging us-gaap:Derivative0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:PolicyholderBenefitsAndClaimsIncurredNet us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship

us-gaap:FairValueHedging


Policyholder
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value5.0291515145.0-14.0-14.0-1.0-1.00.00.00.00.0
Percentage of PolicyholderBenefitsAndClaimsIncurredNet0.10.30.10.10.20.1-0.1-0.1-0.0-0.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.05.60.14.54.31.4-0.1-4.5-0.3-0.30.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:FairValueHedging0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:PolicyholderBenefitsAndClaimsIncurredNet us-gaap:HedgingDesignation

us-gaap:Nondesignated


Policyholder
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-95.0-148.0819781248-104.036-22.0-74.0125-41.0-43.07.0
Percentage of PolicyholderBenefitsAndClaimsIncurredNet-1.0-1.40.61.00.92.7-0.90.3-0.2-0.81.4-0.4-0.30.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-18.5-28.70.429.325.071.9-0.611.5-6.8-22.00.8-12.5-13.12.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Nondesignated0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:PolicyholderBenefitsAndClaimsIncurredNet us-gaap:HedgingDesignation, us-gaap:IncomeStatementLocation

us-gaap:Nondesignated, us-gaap:NonoperatingIncomeExpense


Policyholder
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value525355524439383533323.03.03.02.0
Percentage of PolicyholderBenefitsAndClaimsIncurredNet0.60.50.40.50.50.40.30.30.30.40.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.110.30.315.713.611.30.211.210.29.50.00.90.90.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Nondesignated us-gaap:NonoperatingIncomeExpense0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:PolicyholderBenefitsAndClaimsIncurredNet us-gaap:HedgingDesignation, us-gaap:ManagingRisksInherentInServicingAssetsAndServicingLiabilitiesByTypeOfRisk

us-gaap:Nondesignated, met:EquityMarketRisk


Policyholder
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-103.0-104.01849099208-72.0-7.0-30.0-96.0112-31.0-33.012
Percentage of PolicyholderBenefitsAndClaimsIncurredNet-1.1-1.01.30.91.12.3-0.6-0.1-0.3-1.11.2-0.3-0.20.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-20.0-20.20.927.230.660.3-0.4-2.2-9.3-28.50.7-9.4-10.13.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Nondesignated met:EquityMarketRisk0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Nondesignated, us-gaap:ForeignExchange


Policyholder
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.0-3.0-4.02.01.0-8.06.0-3.0-4.03.0-2.0-1.0-5.02.0
Percentage of PolicyholderBenefitsAndClaimsIncurredNet0.0-0.0-0.00.00.0-0.10.1-0.0-0.00.0-0.0-0.0-0.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0-0.6-0.00.60.3-2.30.0-1.0-1.20.9-0.0-0.3-1.50.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Nondesignated us-gaap:ForeignExchange0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Nondesignated, us-gaap:InterestRateRisk


Policyholder
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value8.0-47.0-3.09.01948-38.046121915-9.0-5.0-7.0
Percentage of PolicyholderBenefitsAndClaimsIncurredNet0.1-0.4-0.00.10.20.5-0.30.40.10.20.2-0.1-0.0-0.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.6-9.1-0.02.75.913.9-0.214.73.75.60.1-2.7-1.5-2.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Nondesignated us-gaap:InterestRateRisk0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Premiums Earned Net

us-gaap:PremiumsEarnedNet

us-gaap:PremiumsEarnedNet


Premiums
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value91321032713897993587369466119201078110129940592671024215153917895711087699359315965210391941796939605103759312925310272970398739219102719094915891511058990969161912991719342929485547538648465846788
Percentage of PremiumsEarnedNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1776.72005.271.63001.52696.32743.869.53444.43126.22790.859.23113.14619.82850.360.467.557.657.379.958.661.852.656.457.557.649.553.751.554.154.055.655.758.351.861.155.149.857.454.845.754.253.858.752.146.251.5

us-gaap:PremiumsEarnedNet us-gaap:ConsolidationItems

us-gaap:MaterialReconcilingItems


Premiums
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value0.08650.00.0203236350.00.00.00.00.00.00.0-37.00.00.00.00.00.0426-1.0-1.0-1.00.05.018202.0-2.00.01.0484.016
Percentage of PremiumsEarnedNet0.08.40.00.00.20.30.30.30.00.00.00.00.00.00.0-0.30.00.00.00.00.04.4-0.0-0.0-0.00.00.00.20.20.0-0.00.00.00.50.00.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0168.00.00.06.29.30.211.20.00.00.00.00.00.00.0-0.20.00.00.00.00.02.3-0.0-0.0-0.00.00.00.10.10.0-0.00.00.00.30.00.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:MaterialReconcilingItems0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments


Premiums
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value913294621389799358716943411884107461012994059267102421515391789571109139935931596521039194179267960610376931392531026796859853921710273909491579103105859080
Percentage of PremiumsEarnedNet100.091.6100.0100.099.899.799.799.7100.0100.0100.0100.0100.0100.0100.0100.3100.0100.0100.0100.0100.095.6100.0100.0100.0100.0100.099.899.8100.0100.0100.0100.099.5100.099.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1776.71837.371.63001.52690.12734.569.33433.23126.22790.859.23113.14619.82850.360.467.857.657.379.958.661.850.356.457.557.649.553.751.453.953.955.755.758.251.561.155.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:PremiumsEarnedNet us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, country:US


Premiums
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value6333518456748097690362345567523664311130252175583698758775185
Percentage of PremiumsEarnedNet63.759.359.967.964.061.559.256.562.874.656.858.364.259.255.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1913.31600.01644.647.22205.41924.11651.933.41954.73445.71620.235.243.434.131.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments country:US0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, met:AsiaSegment


Premiums
Period End2021-06-302021-03-312020-06-302020-03-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value1582168515841636169616591708174118221681165816401736180917521824193919131890190119221980199821292112
Percentage of PremiumsEarnedNet17.316.318.117.315.616.718.318.017.517.917.117.116.719.418.917.820.019.420.518.521.121.621.820.123.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax307.8327.2488.9474.210.59.610.514.410.311.09.09.69.611.29.49.510.310.511.110.311.812.611.312.312.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments met:AsiaSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, met:EMEASegment


Premiums
Period End2021-06-302021-03-312020-06-302020-03-31
Value621598557568
Percentage of PremiumsEarnedNet6.85.86.46.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax120.8116.1171.9164.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments met:EMEASegment0.00.00.00.0

us-gaap:OperatingSegments, met:LatinAmericaSegment


Premiums
Period End2021-06-302021-03-312020-06-302020-03-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value636595489640701645647644653716691741668783699725794780668747692710675630610
Percentage of PremiumsEarnedNet7.05.85.66.86.46.56.96.76.37.67.17.76.48.47.67.18.27.97.27.37.67.87.45.96.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax123.7115.5150.9185.54.43.74.05.33.74.73.74.33.74.83.73.84.24.33.94.04.24.53.83.63.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments met:LatinAmericaSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, met:MetLifeHoldingsSegment


Premiums
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value8398279318768899049729259249271023949957950107498910221059119410931122109712001115
Percentage of PremiumsEarnedNet9.28.06.78.810.29.58.28.69.19.911.09.36.310.411.29.110.311.412.410.511.911.312.510.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax163.2160.64.8264.7274.4262.05.7295.5285.2275.16.5288.4291.8295.06.86.15.96.59.96.27.46.07.06.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments met:MetLifeHoldingsSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, met:UnitedStatesSegment


Premiums
Period End2021-06-302021-03-312020-06-302020-03-31
Value5474569951845674
Percentage of PremiumsEarnedNet59.955.259.359.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1065.01106.61600.01644.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments met:UnitedStatesSegment0.00.00.00.0

us-gaap:OperatingSegments, srt:Asia


Premiums
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value16541584163616481654163116991675168916541748169216961659
Percentage of PremiumsEarnedNet16.618.117.313.815.316.118.118.116.510.919.017.715.616.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax499.7488.9474.29.6528.4503.4504.210.7513.4504.3542.910.710.59.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments srt:Asia0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, srt:LatinAmerica


Premiums
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value529489640601703773646681692688699700701645
Percentage of PremiumsEarnedNet5.35.66.85.06.57.66.97.36.84.57.67.36.46.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax159.8150.9185.53.5224.6238.6191.74.3210.3209.8217.14.44.43.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments srt:LatinAmerica0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, us-gaap:CorporateAndOther


Premiums
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value-20.0585.0-8.013128.0351624132-33.06.013-5.01310.037-11.040132625182610.037414035323028261315
Percentage of PremiumsEarnedNet-0.20.60.0-0.10.10.10.10.30.20.31.4-0.30.00.1-0.10.10.10.4-0.10.40.10.30.30.20.30.10.40.40.40.40.30.30.30.30.10.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-3.911.30.0-2.44.03.50.011.24.97.10.8-10.01.84.0-0.00.10.10.2-0.10.20.10.10.10.10.20.10.20.20.20.20.20.20.20.10.10.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:CorporateAndOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, us-gaap:EMEA


Premiums
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value551557568558526551542520514546551527527505502
Percentage of PremiumsEarnedNet5.56.46.04.74.95.45.85.65.03.66.05.54.85.15.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax166.5171.9164.63.3168.1170.1160.83.3156.2166.5171.13.33.32.93.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:EMEA0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
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
Value34123631587091504401588219017461385206291589412572315-75.0887829-2086.057311422038421198111921631527209413761339916975510992136-957.02303-120.01152357612301013853201547834313-625.0-1418.0-548.0
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax663.870.50.8214.246.31275.73.4699.7538.9411.013.2278.1272.6390.414.6-0.55.15.1-17.33.20.712.04.96.66.911.68.011.17.57.85.06.03.25.60.8-5.812.5-0.86.917.57.26.40.72.610.96.32.5-6.1-17.2-5.4

us-gaap:ProfitLoss us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

met:JointStockCompanyMetLifeInsuranceCompany


Profit
Period End2020-12-31
Value133
Percentage of ProfitLoss84.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax met:JointStockCompanyMetLifeInsuranceCompany0.0

met:MetLifeHongKong


Profit
Period End2020-12-312020-09-302019-12-312019-09-302019-06-30
Value0.00.00.00.0-140.0
Percentage of ProfitLoss0.00.00.00.0-8.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.0-43.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax met:MetLifeHongKong0.00.00.00.00.0

met:MetLifePolandAndGreece


Profit
Period End2021-06-30
Value190
Percentage of ProfitLoss5.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax37.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax met:MetLifePolandAndGreece0.0

met:MetropolitanPropertyAndCasualtyInsuranceCompany


Profit
Period End2021-06-30
Value1100
Percentage of ProfitLoss32.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax214.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax met:MetropolitanPropertyAndCasualtyInsuranceCompany0.0

us-gaap:ProfitLoss us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:SubsequentEventType

met:MetropolitanPropertyAndCasualtyInsuranceCompany, us-gaap:SubsequentEvent


Profit
Period End2021-06-30
Value1000
Percentage of ProfitLoss29.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax194.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax met:MetropolitanPropertyAndCasualtyInsuranceCompany us-gaap:SubsequentEvent0.0

us-gaap:ProfitLoss us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome


Profit
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
Value104-172.0422367297-220.0475-219.0152-9.0-73.0-101.0-389.07966411281-11.0-539.0141-87.0192-233.0-131.0282-317.0-65.0-193.09612030064696.0
Percentage of ProfitLoss3.0-47.4267.151.8198.0-5.080.8-10.08.7-0.6-3.5-11.0-43.56.32.9-548.031.7-1.325.824.6-76.38.7-27.7-10.925.2-14.7-4.3-9.27.09.032.86.613.50.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax20.2-33.42.2110.991.7-63.82.8-70.046.9-2.7-0.5-30.7-118.624.50.42.61.6-0.1-4.50.8-0.61.0-1.4-0.71.7-1.7-0.3-1.00.50.71.60.40.40.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ProfitLoss us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Profit
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-12.0-12.0-16.0-16.0-17.0-17.0-31.0-23.0-23.0-23.0-18.0-24.0-25.0-24.0-38.0-23.0-24.0-39.0-20.0-36.0-34.0-28.0-37.0-37.0-38.0-37.0-26.0-32.0-30.0-29.0245-35.0-34.0-37.0
Percentage of ProfitLoss-0.4-3.3-10.1-2.3-11.3-0.4-5.3-1.1-1.3-1.7-0.9-2.6-2.8-1.9-1.630.7-2.7-4.71.0-6.3-29.8-1.3-4.4-3.1-3.4-1.7-1.7-1.5-2.2-2.226.7-3.6-6.7-3.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-2.3-2.3-0.1-4.8-5.2-4.9-0.2-7.3-7.1-6.8-0.1-7.3-7.6-7.5-0.2-0.1-0.1-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.1-0.2-0.2-0.21.3-0.2-0.2-0.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Profit
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
Value104-137.0374360266-342.0467-262.07812-120.0-100.0-300.013840200280
Percentage of ProfitLoss3.0-37.7236.750.8177.3-7.879.4-12.04.50.9-5.8-10.9-33.611.01.7-266.731.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax20.2-26.61.9108.882.1-99.12.7-83.724.13.6-0.8-30.4-91.542.90.31.21.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Profit
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
Value12-23.06423481393966972.06523-64.0-35.06423425-121.0-237.0113122-10.0-113.0681127817515212111424-55.0147159
Percentage of ProfitLoss0.4-6.340.53.232.03.26.63.05.60.13.22.5-7.2-2.82.8-312.02.8-14.611.419.7107.0-0.5-13.45.710.03.611.57.38.88.52.6-5.628.816.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.3-4.50.36.914.840.30.221.129.90.60.47.0-19.5-10.90.41.50.1-0.7-2.00.60.8-0.1-0.70.40.70.40.90.80.70.70.1-0.30.90.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ProfitLoss us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value5.05.03.05.03.06.05.04.03.03.04.0
Percentage of ProfitLoss0.11.40.43.30.10.30.30.30.30.30.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.01.00.91.50.91.91.51.20.90.91.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value340735870614543982184174113819128911253
Percentage of ProfitLoss99.998.699.696.799.999.799.799.799.799.799.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax662.869.5213.344.81274.8697.8537.3409.8277.2271.6389.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value340735870614543982184174113819128911253
Percentage of ProfitLoss99.998.699.696.799.999.799.799.799.799.799.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax662.869.5213.344.81274.8697.8537.3409.8277.2271.6389.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.0

Realized Investment Gains Losses

us-gaap:RealizedInvestmentGainsLosses us-gaap:FinancialInstrument

us-gaap:RealizedInvestmentGainsLosses

us-gaap:DebtSecurities


Realized
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
Value5.0-67.0301131504.07182138-24.040106-46.0-95.00.027942
Percentage of RealizedInvestmentGainsLosses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.0-13.00.234.146.31.20.426.242.6-7.10.332.2-14.0-29.50.01.70.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:DebtSecurities0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:EquitySecurities


Realized
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
Value5575732.072-284.01217-2.0107-96.01834-31.0542.00.0
Percentage of RealizedInvestmentGainsLosses1100.0-111.9243.31.848.0-7100.016.920.7-1.4-445.8-240.017.0-73.932.60.00.70.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.714.60.40.622.2-82.30.15.4-0.631.8-0.65.510.4-9.60.30.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:EquitySecurities0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RealizedInvestmentGainsLosses us-gaap:InvestmentType

met:ActivelyTradedSecuritiesAtEstimatedFairValueAndFVOSecurities


Realized
Period End2021-06-302021-03-312020-06-302020-03-31
Value1.03.0-4.01.0
Percentage of RealizedInvestmentGainsLosses20.0-4.5-2.725.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.20.6-1.20.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax met:ActivelyTradedSecuritiesAtEstimatedFairValueAndFVOSecurities0.00.00.00.0

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


Revenue
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
Value51451519418331324345171433133243371566232932832215840161041724516269120761772315244184331704418031161661871019119188461826617085184581633715721176831733316503183981591616746204581715015912128381244414245131901234110238826410214
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService

met:Administrativeservicesonlycontracts


Revenue
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
Value5861545454565153535343535356
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.311.80.316.316.716.20.316.916.415.70.316.116.217.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.311.80.316.316.716.20.316.916.415.70.316.116.217.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax met:Administrativeservicesonlycontracts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

met:DistributionandAdministrativeServicesfees


Revenue
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
Value5353515046495252525051565658
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.310.30.315.114.214.20.316.616.014.80.317.017.118.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.310.30.315.114.214.20.316.616.014.80.317.017.118.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax met:DistributionandAdministrativeServicesfees100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

met:Feebasedinvestmentmanagementservices


Revenue
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
Value8685868271797367697774747471
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax16.716.50.424.821.922.90.421.421.322.80.522.522.622.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax16.716.50.424.821.922.90.421.421.322.80.522.522.622.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax met:Feebasedinvestmentmanagementservices100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

met:Otherrevenuefromservicecontractsfromcustomers


Revenue
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
Value7467684554605154647133727264
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.413.00.413.616.717.40.317.319.821.10.221.922.019.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.413.00.413.616.717.40.317.319.821.10.221.922.019.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax met:Otherrevenuefromservicecontractsfromcustomers100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

met:Prepaidlegalplansandadministrativeonlycontracts


Revenue
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
Value10810995100991018887868676747373
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax21.021.20.530.230.629.30.527.826.525.50.522.522.322.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax21.021.20.530.230.629.30.527.826.525.50.522.522.322.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax met:Prepaidlegalplansandadministrativeonlycontracts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

met:VisionFeeForServiceArrangements


Revenue
Period End2021-06-302021-03-31
Value135140
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax26.327.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax26.327.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax met:VisionFeeForServiceArrangements100.0100.0

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
Value185241556219418160151409918310171431867817497163021566216289211851480515840161041724516269120761772315244184331704418031161661871019119188461826617085184581633715721176831733316503183981591616746204581715015912128381244414245131901234110238826410214
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 RevenueFromContractWithCustomerExcludingAssessedTax3603.93021.7100.04838.44351.55307.2100.05967.45400.34837.4100.04951.16458.84597.8100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues us-gaap:ConsolidationItems

us-gaap:MaterialReconcilingItems


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value2285-1145.0-1157.0-493.02542773-1011.017601043854265-111.0-31.0-343.0590-672.0-142.0-610.0-5127.0-386.0-1711.01822-67.064-1194.01678874928465-31.076-562.0-1274.0806-1026.0-108.0
Percentage of Revenues12.3-7.4-6.0-3.11.815.1-5.99.46.05.21.7-0.7-0.1-2.33.7-4.2-0.8-3.7-42.5-2.2-11.29.9-0.40.4-7.49.04.64.92.5-0.20.4-3.4-8.14.6-5.9-0.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax444.6-222.3-6.0-148.978.4803.8-5.9562.3321.9253.41.7-33.7-9.5-106.53.7-4.2-0.8-3.7-42.5-2.2-11.29.9-0.40.4-7.49.04.64.92.5-0.20.4-3.4-8.14.6-5.9-0.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:MaterialReconcilingItems0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value162391670720575165081384515537181541691816454154481539716400212161514815403167761738716879172031810916955166111711117967173601703218245179181780117116183821689916995168771835916611
Percentage of Revenues87.7107.4106.0103.198.284.9105.990.694.094.898.3100.7100.1102.397.2104.2100.8103.7142.5102.2111.290.1100.499.6107.491.095.495.197.5100.299.6103.4108.195.4105.9100.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3159.33244.1106.04987.34273.14503.5105.95405.15078.44584.098.34984.86468.34704.397.2104.2100.8103.7142.5102.2111.290.1100.499.6107.491.095.495.197.5100.299.6103.4108.195.4105.9100.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Revenues us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, country:US


Revenuesus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value86607117795510333915185267777753486761348673417645903379027266
Percentage of Revenues54.150.543.460.349.048.747.748.153.363.749.648.356.145.844.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2616.32196.62305.860.32923.62631.52307.748.12637.14111.62279.848.356.145.844.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments country:US0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, met:AsiaSegment


Revenuesus-gaap:
Period End2021-06-302021-03-312020-06-302020-03-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value3195342527853017292727742786283429352745264326682814291628612985318330542999309230783173318732723213
Percentage of Revenues17.222.019.816.518.216.117.123.516.618.014.315.715.618.015.315.616.916.717.616.818.820.218.018.919.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax621.6665.0859.6874.518.216.117.123.516.618.014.315.715.618.015.315.616.916.717.616.818.820.218.018.919.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments met:AsiaSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, met:EMEASegment


Revenuesus-gaap:
Period End2021-06-302021-03-312020-06-302020-03-31
Value806741723766
Percentage of Revenues4.44.85.14.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax156.8143.9223.1222.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments met:EMEASegment0.00.00.00.0

us-gaap:OperatingSegments, met:LatinAmericaSegment


Revenuesus-gaap:
Period End2021-06-302021-03-312020-06-302020-03-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value124211749971139123612171219118812021241122312821219137412211363147514381311140412681231118111561101
Percentage of Revenues6.77.57.16.27.77.17.59.86.88.16.67.56.88.56.57.17.87.97.77.67.87.86.76.76.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax241.6228.0307.7330.17.77.17.59.86.88.16.67.56.88.56.57.17.87.97.77.67.87.86.76.76.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments met:LatinAmericaSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, met:MetLifeHoldingsSegment


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value272428092725263321892548266125772613255527082680265526832828276528052958308130923163313132953229
Percentage of Revenues14.718.114.016.415.513.915.513.814.915.717.316.512.518.117.917.216.318.225.517.420.717.019.317.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax530.0545.414.0795.5675.6738.615.5823.3806.5758.217.3814.6809.5833.217.917.216.318.225.517.420.717.019.317.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments met:MetLifeHoldingsSegment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, met:UnitedStatesSegment


Revenuesus-gaap:
Period End2021-06-302021-03-312020-06-302020-03-31
Value8134840271177955
Percentage of Revenues43.954.050.543.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1582.51631.52196.62305.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments met:UnitedStatesSegment0.00.00.00.0

us-gaap:OperatingSegments, srt:Asia


Revenuesus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value33532785301730323013300730012948295929052952288029272774
Percentage of Revenues20.919.816.517.716.117.218.418.818.213.719.918.218.216.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1013.0859.6874.517.7962.6928.1890.518.8899.4885.7916.818.218.216.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments srt:Asia0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, srt:LatinAmerica


Revenuesus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value982997113912081262142412381253126712991265131612361217
Percentage of Revenues6.17.16.27.06.88.17.68.07.86.18.58.37.77.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax296.7307.7330.17.0403.2439.5367.48.0385.1396.0392.98.37.77.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments srt:LatinAmerica0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, us-gaap:CorporateAndOther


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value138156132133341121791861421442401111251533.0104-69.0-31.0-205.0-26.010915914279200162122120127156171127139216213178
Percentage of Revenues0.71.00.70.80.20.61.01.00.80.91.50.70.61.00.00.6-0.4-0.2-1.7-0.10.70.90.80.41.20.90.60.60.70.90.90.80.91.21.21.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax26.830.30.740.210.532.51.059.443.842.71.533.738.147.50.00.6-0.4-0.2-1.7-0.10.70.90.80.41.20.90.60.60.70.90.90.80.91.21.21.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:CorporateAndOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, us-gaap:EMEA


Revenuesus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value747723766741729742733714707746754731711703688
Percentage of Revenues4.75.14.24.33.94.24.54.64.33.55.14.64.44.14.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax225.7223.1222.04.3232.9229.0217.54.6214.9227.4234.24.64.44.14.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:EMEA0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Selling And Marketing Expense

us-gaap:SellingAndMarketingExpense

us-gaap:SellingAndMarketingExpense


Selling
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
Value129415301497137613151408156815141470144914501403143814161384139313061304
Percentage of SellingAndMarketingExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax251.8297.17.7415.7405.9408.19.1483.7453.7430.09.3426.4438.4439.88.78.77.68.0

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
Value773253769814795146780492767583737741740463742812732167713188687538698451706333712584719892720515925199914687898764952904942567917428877933882460898409919790902337908627911120890903885296822643815662841685836781846285825188819604799625785230771483751341730906539314
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:BalanceSheetLocation, us-gaap:InvestmentType, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:ConsolidatedEntities, met:InvestmentFundsDomain, us-gaap:VariableInterestEntityPrimaryBeneficiary


Assetsus-gaap:
Period End2020-09-302020-06-302019-12-31
Value231218207
Percentage of Assets0.00.00.0
Percentage of Assets0.00.00.0
Percentage of Assets us-gaap:ConsolidatedEntities met:InvestmentFundsDomain us-gaap:VariableInterestEntityPrimaryBeneficiary100.0100.0100.0

us-gaap:ConsolidatedEntities, us-gaap:OtherInvestments, us-gaap:VariableInterestEntityPrimaryBeneficiary


Assetsus-gaap:
Period End2020-09-302020-06-302019-12-31
Value10.01210.0
Percentage of Assets0.00.00.0
Percentage of Assets0.00.00.0
Percentage of Assets us-gaap:ConsolidatedEntities us-gaap:OtherInvestments us-gaap:VariableInterestEntityPrimaryBeneficiary100.0100.0100.0

us-gaap:ConsolidatedEntities, us-gaap:Partnership, us-gaap:VariableInterestEntityPrimaryBeneficiary


Assetsus-gaap:
Period End2020-09-302020-06-302019-12-31
Value939194
Percentage of Assets0.00.00.0
Percentage of Assets0.00.00.0
Percentage of Assets us-gaap:ConsolidatedEntities us-gaap:Partnership us-gaap:VariableInterestEntityPrimaryBeneficiary100.0100.0100.0

us-gaap:Assets us-gaap:BalanceSheetLocation, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:ConsolidatedEntities, us-gaap:VariableInterestEntityPrimaryBeneficiary


Assetsus-gaap:
Period End2020-09-302020-06-302019-12-31
Value334321311
Percentage of Assets0.00.00.0
Percentage of Assets0.00.00.0
Percentage of Assets us-gaap:ConsolidatedEntities us-gaap:VariableInterestEntityPrimaryBeneficiary100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidatedEntities

srt:ParentCompany


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-31
Value93888840027076881091
Percentage of Assets11.811.310.311.3
Percentage of Assets11.811.310.311.3
Percentage of Assets srt:ParentCompany100.0100.0100.0100.0

us-gaap:VariableInterestEntityNotPrimaryBeneficiary


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312019-12-31
Value72795701367040962481
Percentage of Assets9.49.18.98.4
Percentage of Assets9.49.18.98.4
Percentage of Assets us-gaap:VariableInterestEntityNotPrimaryBeneficiary100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidatedEntities, us-gaap:BalanceSheetLocation

us-gaap:VariableInterestEntityPrimaryBeneficiary, us-gaap:ConsolidatedEntities


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312019-12-31
Value403388349311
Percentage of Assets0.10.10.00.0
Percentage of Assets0.10.10.00.0
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary us-gaap:ConsolidatedEntities100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidatedEntities, us-gaap:BalanceSheetLocation, us-gaap:InvestmentType

us-gaap:VariableInterestEntityPrimaryBeneficiary, us-gaap:ConsolidatedEntities, met:InvestmentFundsDomain


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312019-12-31
Value319300258207
Percentage of Assets0.00.00.00.0
Percentage of Assets0.00.00.00.0
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary us-gaap:ConsolidatedEntities met:InvestmentFundsDomain100.0100.0100.0100.0

us-gaap:VariableInterestEntityPrimaryBeneficiary, us-gaap:ConsolidatedEntities, us-gaap:OtherInvestments


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312019-12-31
Value2.01.04.010.0
Percentage of Assets0.00.00.00.0
Percentage of Assets0.00.00.00.0
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary us-gaap:ConsolidatedEntities us-gaap:OtherInvestments100.0100.0100.0100.0

us-gaap:VariableInterestEntityPrimaryBeneficiary, us-gaap:ConsolidatedEntities, us-gaap:Partnership


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312019-12-31
Value82878794
Percentage of Assets0.00.00.00.0
Percentage of Assets0.00.00.00.0
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary us-gaap:ConsolidatedEntities us-gaap:Partnership100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidatedEntities, us-gaap:FinancialInstrument

us-gaap:VariableInterestEntityNotPrimaryBeneficiary, met:OtherInvestedAssets


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312019-12-31
Value1217128913201495
Percentage of Assets0.20.20.20.2
Percentage of Assets0.20.20.20.2
Percentage of Assets us-gaap:VariableInterestEntityNotPrimaryBeneficiary met:OtherInvestedAssets100.0100.0100.0100.0

us-gaap:VariableInterestEntityNotPrimaryBeneficiary, met:StructuredSecurities


Assetsus-gaap:
Period End2020-12-312019-12-31
Value5696251962
Percentage of Assets7.27.0
Percentage of Assets7.27.0
Percentage of Assets us-gaap:VariableInterestEntityNotPrimaryBeneficiary met:StructuredSecurities100.0100.0

us-gaap:VariableInterestEntityNotPrimaryBeneficiary, srt:PartnershipInterest


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312019-12-31
Value10766977183556674
Percentage of Assets1.41.31.10.9
Percentage of Assets1.41.31.10.9
Percentage of Assets us-gaap:VariableInterestEntityNotPrimaryBeneficiary srt:PartnershipInterest100.0100.0100.0100.0

us-gaap:VariableInterestEntityNotPrimaryBeneficiary, us-gaap:CorporateDebtSecurities


Assetsus-gaap:
Period End2020-12-312019-12-31
Value30111764
Percentage of Assets0.40.2
Percentage of Assets0.40.2
Percentage of Assets us-gaap:VariableInterestEntityNotPrimaryBeneficiary us-gaap:CorporateDebtSecurities100.0100.0

us-gaap:VariableInterestEntityNotPrimaryBeneficiary, us-gaap:DebtSecurities


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-31
Value601525844260115
Percentage of Assets7.87.67.6
Percentage of Assets7.87.67.6
Percentage of Assets us-gaap:VariableInterestEntityNotPrimaryBeneficiary us-gaap:DebtSecurities100.0100.0100.0

us-gaap:VariableInterestEntityNotPrimaryBeneficiary, us-gaap:ForeignGovernmentDebtSecurities


Assetsus-gaap:
Period End2020-12-312019-12-31
Value142136
Percentage of Assets0.00.0
Percentage of Assets0.00.0
Percentage of Assets us-gaap:VariableInterestEntityNotPrimaryBeneficiary us-gaap:ForeignGovernmentDebtSecurities100.0100.0

us-gaap:VariableInterestEntityNotPrimaryBeneficiary, us-gaap:OtherInvestments


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312019-12-31
Value660634619450
Percentage of Assets0.10.10.10.1
Percentage of Assets0.10.10.10.1
Percentage of Assets us-gaap:VariableInterestEntityNotPrimaryBeneficiary us-gaap:OtherInvestments100.0100.0100.0100.0

us-gaap:Assets us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Assetsus-gaap:
Period End2020-12-312019-12-31
Value704500585300
Percentage of Assets88.679.0
Percentage of Assets88.679.0
Percentage of Assets us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees100.0100.0

us-gaap:Assets us-gaap:FinancialInstrument, us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

met:OtherInvestedAssets, us-gaap:VariableInterestEntityNotPrimaryBeneficiary


Assetsus-gaap:
Period End2020-09-302020-06-302019-12-31
Value134013881495
Percentage of Assets0.20.20.2
Percentage of Assets0.20.20.2
Percentage of Assets met:OtherInvestedAssets us-gaap:VariableInterestEntityNotPrimaryBeneficiary100.0100.0100.0

met:StructuredSecurities, us-gaap:VariableInterestEntityNotPrimaryBeneficiary


Assetsus-gaap:
Period End2020-09-302020-06-302019-12-31
Value603125715051962
Percentage of Assets7.77.47.0
Percentage of Assets7.77.47.0
Percentage of Assets met:StructuredSecurities us-gaap:VariableInterestEntityNotPrimaryBeneficiary100.0100.0100.0

srt:PartnershipInterest, us-gaap:VariableInterestEntityNotPrimaryBeneficiary


Assetsus-gaap:
Period End2020-09-302020-06-302019-12-31
Value752367706674
Percentage of Assets1.00.90.9
Percentage of Assets1.00.90.9
Percentage of Assets srt:PartnershipInterest us-gaap:VariableInterestEntityNotPrimaryBeneficiary100.0100.0100.0

us-gaap:CorporateDebtSecurities, us-gaap:VariableInterestEntityNotPrimaryBeneficiary


Assetsus-gaap:
Period End2020-09-302020-06-302019-12-31
Value251220361764
Percentage of Assets0.30.30.2
Percentage of Assets0.30.30.2
Percentage of Assets us-gaap:CorporateDebtSecurities us-gaap:VariableInterestEntityNotPrimaryBeneficiary100.0100.0100.0

us-gaap:ForeignGovernmentDebtSecurities, us-gaap:VariableInterestEntityNotPrimaryBeneficiary


Assetsus-gaap:
Period End2020-09-302020-06-302019-12-31
Value135134136
Percentage of Assets0.00.00.0
Percentage of Assets0.00.00.0
Percentage of Assets us-gaap:ForeignGovernmentDebtSecurities us-gaap:VariableInterestEntityNotPrimaryBeneficiary100.0100.0100.0

us-gaap:OtherInvestments, us-gaap:VariableInterestEntityNotPrimaryBeneficiary


Assetsus-gaap:
Period End2020-09-302020-06-302019-12-31
Value593537450
Percentage of Assets0.10.10.1
Percentage of Assets0.10.10.1
Percentage of Assets us-gaap:OtherInvestments us-gaap:VariableInterestEntityNotPrimaryBeneficiary100.0100.0100.0

us-gaap:Assets us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:VariableInterestEntityNotPrimaryBeneficiary


Assetsus-gaap:
Period End2020-09-302020-06-302019-12-31
Value724156801562481
Percentage of Assets9.38.98.4
Percentage of Assets9.38.98.4
Percentage of Assets us-gaap:VariableInterestEntityNotPrimaryBeneficiary100.0100.0100.0

us-gaap:Assets us-gaap:StatementBusinessSegments

country:US


Assetsus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value289159284305273341266174267428263410257461248174251231256668251496255428253926
Percentage of Assets37.037.037.135.936.036.036.136.136.036.335.335.528.3
Percentage of Assets37.037.037.135.936.036.036.136.136.036.335.335.528.3
Percentage of Assets country:US100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

met:AsiaSegment


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312019-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value170851167686173884161018134070130363128932120656133881131537122187113895112456113676116278116915124127124475121088119717119742131138
Percentage of Assets22.121.821.921.718.614.114.113.414.014.013.313.012.712.712.613.013.713.713.613.514.615.7
Percentage of Assets22.121.821.921.718.614.114.113.414.014.013.313.012.712.712.613.013.713.713.613.514.615.7
Percentage of Assets met:AsiaSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

met:EMEASegment


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312019-12-31
Value28084271262837227281
Percentage of Assets3.63.53.63.7
Percentage of Assets3.63.53.63.7
Percentage of Assets met:EMEASegment100.0100.0100.0100.0

met:LatinAmericaSegment


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312019-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value66728726917504775069776177245871697672337042168971689496526664949705417207471419733177443771778698742411623272
Percentage of Assets8.69.49.410.110.87.87.87.57.47.37.57.47.47.97.87.98.18.28.17.92.92.8
Percentage of Assets8.69.49.410.110.87.87.87.57.47.37.57.47.47.97.87.98.18.28.17.92.92.8
Percentage of Assets met:LatinAmericaSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

met:MetLifeHoldingsSegment


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302015-12-31
Value181609178030184566181047179585172347175199176410172957171267166872173351174470175817183160185054184817184187184276195267187677
Percentage of Assets23.523.123.223.223.423.423.723.723.624.024.324.824.724.725.425.720.020.120.520.521.4
Percentage of Assets23.523.123.223.223.423.423.723.723.624.024.324.824.724.725.425.720.020.120.520.521.4
Percentage of Assets met:MetLifeHoldingsSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

met:UnitedStatesSegment


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312019-12-31
Value283698286236291483266174
Percentage of Assets36.737.236.735.9
Percentage of Assets36.737.236.735.9
Percentage of Assets met:UnitedStatesSegment100.0100.0100.0100.0

srt:Asia


Assetsus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value167914163082160442161018160798157743152264146278142033141653136928
Percentage of Assets21.521.221.721.721.621.521.321.320.320.119.0
Percentage of Assets21.521.221.721.721.621.521.321.320.320.119.0
Percentage of Assets srt:Asia100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:LatinAmerica


Assetsus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value6951870791615267506975640768817432970417739737321479670
Percentage of Assets8.99.28.310.110.210.510.410.210.610.411.1
Percentage of Assets8.99.28.310.110.210.510.410.210.610.411.1
Percentage of Assets srt:LatinAmerica100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CorporateAndOther


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value422833804541794462244390545720357223611833714300332796828839309753262934206348792673325298246392693262409624335325755491503585426551574498204571845545487914945065020
Percentage of Assets5.54.95.35.95.76.24.84.94.64.24.14.14.44.64.84.82.92.82.72.86.66.86.16.35.65.95.75.55.05.15.56.07.8
Percentage of Assets5.54.95.35.95.76.24.84.94.64.24.14.14.44.64.84.82.92.82.72.86.66.86.16.35.65.95.75.55.05.15.56.07.8
Percentage of Assets us-gaap:CorporateAndOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EMEA


Assetsus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value26630259152436527281264182746227834278292902429353305463050025596
Percentage of Assets3.43.43.33.73.63.83.94.04.24.24.34.22.8
Percentage of Assets3.43.43.33.73.63.83.94.04.24.24.34.22.8
Percentage of Assets us-gaap:EMEA100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:StatementGeographical

country:JP


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312011-09-302010-12-31
Value1460001340001200001110009800090000938009840011100010456310449387416
Percentage of Assets18.418.117.515.410.910.310.411.113.313.113.312.0
Percentage of Assets18.418.117.515.410.910.310.411.113.313.113.312.0
Percentage of Assets country:JP100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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
Value703830703677720329706923691643667278674081674193668121654450634580646642652501656076661022663571855530846579831284874438863194841463809437811393828420845381829678837226840838824464822313761265755124776717771823781735762364760480739349724355717650700992681793505816
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 Assets91.091.490.690.690.190.491.090.891.391.892.392.692.492.191.892.192.592.692.591.891.691.792.291.992.291.991.992.192.392.592.992.592.692.392.292.492.492.892.592.293.093.393.393.8

us-gaap:Liabilities us-gaap:ConsolidatedEntities

srt:ParentCompany


Liabilitiesus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-31
Value19330178581802722415
Percentage of Liabilities2.72.62.83.4
Percentage of Assets2.42.42.63.1
Percentage of Assets srt:ParentCompany20.621.325.527.6

us-gaap:Liabilities us-gaap:ConsolidatedEntities, us-gaap:BalanceSheetLocation

us-gaap:VariableInterestEntityPrimaryBeneficiary, us-gaap:ConsolidatedEntities


Liabilitiesus-gaap:
Period End2021-06-302021-03-312020-12-312019-12-31
Value10.01.06.06.0
Percentage of Liabilities0.00.00.00.0
Percentage of Assets0.00.00.00.0
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary us-gaap:ConsolidatedEntities2.50.31.71.9

us-gaap:Liabilities us-gaap:ConsolidatedEntities, us-gaap:BalanceSheetLocation, us-gaap:InvestmentType

us-gaap:VariableInterestEntityPrimaryBeneficiary, us-gaap:ConsolidatedEntities, met:InvestmentFundsDomain


Liabilitiesus-gaap:
Period End2021-06-302021-03-312020-12-312019-12-31
Value10.01.01.01.0
Percentage of Liabilities0.00.00.00.0
Percentage of Assets0.00.00.00.0
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary us-gaap:ConsolidatedEntities met:InvestmentFundsDomain3.10.30.40.5

us-gaap:Liabilities us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Liabilitiesus-gaap:
Period End2020-12-312019-12-31
Value9940086100
Percentage of Liabilities13.812.8
Percentage of Assets12.511.6
Percentage of Assets us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees14.114.7

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
Value773253769814795146780492767583737741740463742812732167713188687538698451706333712584719892720515925199914687898764952904942567917428877933882460898409919790902337908627911120890903885296822643815662841685836781846285825188819604799625785230771483751341730906539314
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
Value93888840027076881091
Percentage of LiabilitiesAndStockholdersEquity11.811.310.311.3
Percentage of Assets11.811.310.311.3
Percentage of Assets srt:ParentCompany100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value6913865864745587331675693702216614468368638115850952741516255363356310586765671469455679296730978286791797577567949705036937773770720537080569591657586155360927600036445064453640496240658666597976034853309498164862533121
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.98.69.49.49.99.58.99.28.78.27.77.47.67.98.27.97.57.47.58.28.48.37.78.07.78.08.07.87.67.47.07.47.47.77.77.67.67.27.57.76.96.66.76.1

us-gaap:StockholdersEquity us-gaap:ConsolidatedEntities

srt:ParentCompany


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-31
Value74558661445274158676
Percentage of StockholdersEquity100.0100.0100.0100.0
Percentage of Assets9.48.97.78.2
Percentage of Assets srt:ParentCompany79.478.774.572.4

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


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
Value250371963519795244052428924094165981945218435145061582112490163121392712701130231731917411178771588317067132901275210216807481271080887837393857375851137691849983157381695016035186671046110001962810692130461447910664911710112242079961
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.22.62.53.13.23.32.22.62.52.02.31.82.32.01.81.81.91.92.01.71.81.41.51.20.90.91.21.00.81.00.91.41.11.21.92.01.92.31.31.31.21.41.80.00.00.01.90.00.0

us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:ConsolidatedEntities

srt:ParentCompany


Cash
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value441377376516334421
Percentage of CashAndCashEquivalentsAtCarryingValue2.22.32.44.11.93.3
Percentage of Assets0.10.10.10.10.00.0
Percentage of Assets srt:ParentCompany0.50.40.50.60.00.0

us-gaap:VariableInterestEntityPrimaryBeneficiary


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value5.0121228131212
Percentage of CashAndCashEquivalentsAtCarryingValue0.00.10.10.10.10.00.1
Percentage of Assets0.00.00.00.00.00.00.0
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary0.00.00.00.00.00.00.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-06-302021-03-312020-12-312020-06-302020-03-312019-12-312018-12-312017-12-312016-12-31
Value250371963519795242892409416598158211270112651
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.22.62.53.23.32.22.31.81.4

Short Term Investments

us-gaap:ShortTermInvestments

us-gaap:ShortTermInvestments


Short
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
Value375947813904383253455930385035362811452439375231385351214870721771779968781011655983811621929914957145941413086211224012366139081395512664129901365316906146781852611801173101591312419882293878374
Percentage of ShortTermInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.50.60.50.50.70.80.50.50.40.60.60.70.50.70.71.00.81.10.91.21.01.31.11.71.61.51.01.31.41.61.61.51.61.62.01.72.21.42.22.01.61.21.31.6

us-gaap:ShortTermInvestments us-gaap:ConsolidatedEntities

srt:ParentCompany


Short
Period End2020-12-312019-12-312018-12-312017-12-31
Value1562.01630
Percentage of ShortTermInvestments4.00.10.40.6
Percentage of Assets0.00.00.00.0
Percentage of Assets srt:ParentCompany0.20.00.00.0

us-gaap:ShortTermInvestments us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring


Short
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value268326522762285330192917204292978314871470161593628453001392532135905480855612262226325433634245326212104406643095259591536154240498694267108114185602815045073026
Percentage of ShortTermInvestments71.455.570.774.556.549.253.026.327.932.937.330.924.355.661.654.444.859.261.647.723.019.527.324.316.818.524.433.234.837.842.428.532.636.555.848.461.647.547.128.332.2
Percentage of Assets0.30.30.30.40.40.40.30.10.10.20.20.20.10.40.40.50.30.60.50.60.20.20.30.40.30.30.20.40.50.60.70.40.50.61.10.81.40.71.00.60.4
Percentage of Assets us-gaap:FairValueInputsLevel1 us-gaap:FairValueMeasurementsRecurring0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Short
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value40014535685131836215011081556123321951746229916809901252231024712732243643106472833359859006851786735223648357236020694367996033563062955590555752438120101594681
Percentage of ShortTermInvestments10.630.414.513.434.336.328.844.043.948.544.343.943.619.325.732.034.427.431.237.065.871.764.460.258.461.460.653.046.343.349.853.746.441.237.238.130.044.446.963.849.9
Percentage of Assets0.10.20.10.10.20.30.10.20.20.30.30.30.20.10.20.30.30.30.30.50.70.90.71.00.90.90.60.70.60.70.80.80.70.70.80.70.70.61.01.30.6
Percentage of Assets us-gaap:FairValueInputsLevel2 us-gaap:FairValueMeasurementsRecurring0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring


Short
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value113102433.07.036832374123138336545596153340391378047673175170291131318091358336155246103225419234421304291097717462590626858
Percentage of ShortTermInvestments3.02.11.10.10.16.20.810.64.43.10.812.514.512.00.75.612.77.80.65.81.81.53.18.812.49.63.91.32.07.41.81.52.615.62.57.53.93.93.43.99.1
Percentage of Assets0.00.00.00.00.00.00.00.10.00.00.00.10.10.10.00.10.10.10.00.10.00.00.00.10.20.10.00.00.00.10.00.00.00.30.10.10.10.10.10.10.1
Percentage of Assets us-gaap:FairValueInputsLevel3 us-gaap:FairValueMeasurementsRecurring0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ShortTermInvestments us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Short
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value31964207337333694862543531822859213938203249456831754450428666386597941772911054489091076688191395312779126527663107041027812311131121060610617127461615013795176921130716860152928565
Percentage of ShortTermInvestments85.088.086.487.991.091.782.680.976.184.482.587.382.486.988.092.091.994.593.490.590.692.694.893.387.689.588.987.583.188.594.083.781.793.495.594.095.595.897.496.191.2
Percentage of Assets0.40.50.40.40.60.70.40.40.30.50.50.70.40.60.60.90.71.00.81.10.91.21.01.61.41.40.81.21.11.41.51.31.31.51.91.62.11.42.11.91.2
Percentage of Assets us-gaap:FairValueMeasurementsRecurring0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


Property
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
Value280027002600250024002000200020002500250024001900
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.40.40.30.30.20.20.20.30.30.30.4

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
Value150014001200110011001100100010001300120012001000
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.20.20.20.10.10.10.10.20.20.20.2

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value97689944101129360924591599308927894089418942294409499973395909556938593509220959298529729947795469644971798721021610430104331054295099447969699531002411823119031193512006120361194611781504750084814
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.31.31.31.21.21.21.31.21.31.31.41.41.31.41.31.31.01.01.01.01.01.11.11.11.11.11.11.11.11.21.21.21.21.21.21.21.41.51.51.51.61.61.60.90.00.0

us-gaap:Goodwill us-gaap:BusinessAcquisition

met:VersantHealthInc


Goodwillus-gaap:
Period End2020-12-30
Value890
Percentage of Goodwill0.0
Percentage of Assets0.0
Percentage of Assets met:VersantHealthInc0.0

us-gaap:Goodwill us-gaap:StatementBusinessSegments

met:AsiaSegment


Goodwillus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312016-09-302015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value4763463646904673459648604508461548985387553372
Percentage of Goodwill47.149.849.848.749.850.747.646.746.554.146.40.6
Percentage of Assets0.60.60.70.60.50.50.50.50.60.60.70.0
Percentage of Assets met:AsiaSegment2.72.90.00.03.83.64.03.94.14.10.00.0

met:EMEASegment


Goodwillus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-31
Value1146111711191170
Percentage of Goodwill11.312.011.912.2
Percentage of Assets0.10.20.20.2
Percentage of Assets met:EMEASegment4.04.10.00.0

met:LatinAmericaSegment


Goodwillus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-09-302015-12-31
Value114310991172130612501186
Percentage of Goodwill11.311.812.413.613.012.5
Percentage of Assets0.10.10.20.20.10.1
Percentage of Assets met:LatinAmericaSegment1.51.50.00.01.81.8

met:UnitedStatesSegment


Goodwillus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-31
Value2070146614511451
Percentage of Goodwill20.515.715.415.1
Percentage of Assets0.30.20.20.2
Percentage of Assets met:UnitedStatesSegment0.70.60.00.0

us-gaap:CorporateAndOther


Goodwillus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312016-09-302015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value1031031031030.00.0229229229229405470
Percentage of Goodwill1.01.11.11.10.00.02.42.32.22.33.44.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.10.1
Percentage of Assets us-gaap:CorporateAndOther0.20.30.40.30.00.00.40.40.50.40.00.0

us-gaap:Goodwill us-gaap:StatementGeographical

country:JP


Goodwillus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312012-09-302012-06-302011-12-31
Value460045004500450044004300440047005200530052005371
Percentage of Goodwill45.548.347.846.947.745.444.644.652.252.944.045.0
Percentage of Assets0.60.60.70.60.50.50.50.50.60.60.60.7
Percentage of Assets country:JP3.23.43.84.14.54.84.74.84.70.00.05.1

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:FiniteLivedIntangibleAssetsNet


Finite
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
Value1099335384459629719847975110812641094792822706
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.00.10.10.10.10.10.10.10.20.10.10.00.0

Deferred Tax Assets Liabilities Net

us-gaap:DeferredTaxAssetsLiabilitiesNet us-gaap:BalanceSheetLocation

us-gaap:DeferredTaxAssetsLiabilitiesNet

us-gaap:OtherAssets


Deferred
Period End2020-12-312019-12-31
Value9465
Percentage of DeferredTaxAssetsLiabilitiesNet100.0100.0
Percentage of Assets0.00.0
Percentage of Assets us-gaap:OtherAssets0.00.0

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value13141488154314941521
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0
Percentage of Assets0.20.20.20.20.2

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
Value116511216411685104711117310617105181016610029101008408849382308387816781498073805577677867774774967666788175897980786289009136838783697952783080627876812377119647798483408246932181926822
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 Assets1.51.61.51.31.51.41.41.41.41.41.21.21.21.21.11.10.90.90.90.80.80.80.90.90.80.90.91.01.00.90.91.01.01.00.91.00.91.21.01.11.11.21.11.3

us-gaap:OtherAssets us-gaap:ConsolidatedEntities

srt:ParentCompany


Other
Period End2020-12-312019-12-312018-12-312017-12-31
Value9667478431153
Percentage of OtherAssets8.37.110.014.1
Percentage of Assets0.10.10.10.2
Percentage of Assets srt:ParentCompany1.00.91.21.4

us-gaap:VariableInterestEntityPrimaryBeneficiary


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value2.01.01.02.02.02.02.0
Percentage of OtherAssets0.00.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.0
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary0.00.00.00.00.00.00.0

Taxes Payable Current

us-gaap:TaxesPayableCurrent

us-gaap:TaxesPayableCurrent


Taxes
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value129638928708363310.05054411662221553110.0
Percentage of TaxesPayableCurrent100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.00.10.10.10.00.00.00.10.10.00.00.00.00.0

Long Term Debt

us-gaap:LongTermDebt us-gaap:ConsolidatedEntities

us-gaap:LongTermDebt

srt:ParentCompany


Long
Period End2020-12-312019-12-312018-12-312017-12-31
Value15536143551380116599
Percentage of LongTermDebt100.0100.0100.0100.0
Percentage of Assets2.01.92.02.3
Percentage of Assets srt:ParentCompany16.517.119.520.5

us-gaap:LongTermDebt us-gaap:LongtermDebtType

met:OtherNotes


Long
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value52545447357445345811053113342
Percentage of LongTermDebt3.43.23.43.50.00.00.00.00.00.0
Percentage of Assets0.10.10.10.10.10.10.00.10.00.0
Percentage of Assets met:OtherNotes0.00.00.00.00.00.00.00.00.00.0

met:SurplusNotes


Long
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
Value504503503502501502701701700700699698
Percentage of LongTermDebt3.23.53.63.00.00.00.00.00.00.00.00.0
Percentage of Assets0.10.10.10.10.10.10.10.10.10.10.10.1
Percentage of Assets met:SurplusNotes0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:SeniorNotes


Long
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
Value134631237911844145991550516994153171593815669156661625810458
Percentage of LongTermDebt86.786.285.888.00.00.00.00.00.00.00.00.0
Percentage of Assets1.71.71.72.01.71.91.71.81.92.02.21.9
Percentage of Assets us-gaap:SeniorNotes0.00.00.00.00.00.00.00.00.00.00.00.0

Debt And Capital Lease Obligations

us-gaap:DebtAndCapitalLeaseObligations

us-gaap:DebtAndCapitalLeaseObligations


Debt
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
Value149911369613092161571670918063162351737316635213102107214132
Percentage of DebtAndCapitalLeaseObligations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.91.81.92.21.92.11.82.02.02.72.92.6

Deferred Income Tax Liabilities Net

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:DeferredIncomeTaxLiabilitiesNet


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value9748857011008108391133410009903210153876670755414
Percentage of DeferredIncomeTaxLiabilitiesNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.31.11.41.41.51.41.21.41.21.00.8

Minority Interest

us-gaap:MinorityInterest

us-gaap:MinorityInterest


Minority
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
Value285273259253247242238251235229217184199198194230214179171180194190470485520544507494583574543341405422384349323344374397400405371377
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.10.10.10.10.10.10.10.10.00.00.10.00.00.00.00.00.10.10.10.10.1

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2020-12-31
Value238
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
Value219
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
Value197
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
Value185
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
Value553
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0
Percentage of Assets0.1

Operating Lease Liability

us-gaap:OperatingLeaseLiability us-gaap:BalanceSheetLocation

us-gaap:OperatingLeaseLiability

us-gaap:OtherLiabilities


Operating
Period End2020-12-312019-12-31
Value14701654
Percentage of OperatingLeaseLiability100.0100.0
Percentage of Assets0.20.2
Percentage of Assets us-gaap:OtherLiabilities0.00.0

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2020-12-31
Value1675
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0
Percentage of Assets0.2

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2020-12-31
Value205
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0
Percentage of Assets0.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value6913865864745587331675693702216614468368638115850952741516255363356310586765671469455679296730978286791797577567949705036937773770720537080569591657586155360927600036445064453640496240658666597976034853309498164862533121
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.98.69.49.49.99.58.99.28.78.27.77.47.67.98.27.97.57.47.58.28.48.37.78.07.78.08.07.87.67.47.07.47.47.77.77.67.67.27.57.76.96.66.76.1

us-gaap:StockholdersEquity us-gaap:ConsolidatedEntities

srt:ParentCompany


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-31
Value74558661445274158676
Percentage of StockholdersEquity100.0100.0100.0100.0
Percentage of Assets9.48.97.78.2
Percentage of Assets srt:ParentCompany79.478.774.572.4

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value69423661377481773569759407046366382686196404658738529585180953832565085887056944696696810867480784667937375965684197098869897743147256071299701746633262096612686040864872648376439862729590106017160745537095022148996467693972436179335282398537002
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.08.69.49.49.99.69.09.28.78.27.77.47.67.98.27.97.57.47.58.28.48.37.88.07.88.18.07.87.77.47.07.47.47.77.77.67.67.27.57.77.06.76.70.00.00.06.20.00.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-312013-12-31
Value1230910397180721603618563127571305215197116316911172210002854563474277005843663965347135951463210865477168916443106495104
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest17.715.724.221.824.418.119.722.118.211.83.31.95.310.012.612.312.19.47.917.318.414.37.09.79.214.78.2
Percentage of Assets1.61.42.32.12.41.71.82.01.61.00.30.10.40.81.01.00.90.70.61.41.61.20.50.80.71.20.6
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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
Value33440339103381233744337283371132680326393260232535324743247532454316533111131066310213099030944307973078330769307493072630718306323054329488294382938429277292212813728072280112696426927269202678226744267142666826423204511689616871168591581117098
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest48.251.345.245.944.447.849.247.650.955.461.362.760.356.052.854.644.545.545.939.238.840.544.943.343.941.242.141.442.044.347.147.746.643.343.241.942.945.644.544.049.753.153.943.742.546.650.365.946.2
Percentage of Assets4.34.44.34.34.44.64.44.44.54.64.74.64.64.44.34.33.43.43.43.23.33.43.53.53.43.33.43.23.23.33.33.63.43.33.33.23.33.33.33.43.53.53.60.00.00.03.10.00.0
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 End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-312006-12-31
Value12121212121212121212121212121212121212121212121212121211111111111111111111111111111110.09.08.08.08.08.08.08.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NoncontrollingInterest


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
Value285273259253247242238251235229217184199198194230214179171180194190470485520544507494583574543341405422384349323344374397400405371354349368377251
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.40.40.30.30.30.30.40.40.40.40.40.40.40.40.30.40.30.30.30.20.20.30.70.70.70.70.70.70.80.90.90.60.70.70.60.50.50.60.60.70.70.80.80.80.91.01.11.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.10.10.10.10.10.10.10.10.00.00.10.00.00.00.00.00.10.10.10.10.00.00.00.10.0
Percentage of Assets us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent


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
Value69138658647455873316756937022166144683686381158509527415162553633563105867656714694556792967309782867917975775679497050369377737707205370805695916575861553609276000364450644536404962406586665979760348533094981648625464153937535811331512373435196
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest99.699.699.799.799.799.799.699.699.699.699.699.699.699.699.799.699.799.799.799.899.899.799.399.399.399.399.399.399.299.199.199.499.399.399.499.599.599.499.499.399.399.299.299.299.199.098.999.095.1
Percentage of Assets8.98.69.49.49.99.58.99.28.78.27.77.47.67.98.27.97.57.47.58.28.48.37.78.07.78.08.07.87.67.47.07.47.47.77.77.67.67.27.57.76.96.66.70.00.00.06.10.00.0
Percentage of Assets us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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
Value39318363733649136782365683691933078329483120929944289262733126870264532652724410352703486334480370543692437301355193515334376337543202030928292592831927332267662582425958252052592026904246402728926951233992219321363220962182020294194892240319911
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest56.655.048.850.048.252.449.848.048.751.054.652.849.946.845.142.950.651.251.147.246.549.151.949.549.245.444.143.441.742.744.043.742.740.038.940.242.941.845.444.443.644.243.647.254.956.158.193.453.8
Percentage of Assets5.14.74.64.74.85.04.54.44.34.24.23.93.83.73.73.43.83.83.83.93.94.14.04.03.83.73.53.43.23.23.13.33.23.13.03.13.33.03.43.43.03.02.90.00.00.03.60.00.0
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 End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value-15941.0-14828.0-13829.0-13258.0-13178.0-13178.0-12678.0-12428.0-11643.0-10893.0-10393.0-9193.0-8557.0-7442.0-6401.0-5779.0-5284.0-4332.0-3474.0-3172.0-3172.0-3172.0-3102.0-2279.0-2172.0-2158.0-1172.0-615.0-176.0-172.0-172.0-172.0-172.0-172.0-172.0-172.0-172.0-172.0-172.0-172.0-172.0-172.0-172.0-172.0-172.0-172.0-190.0-236.0-2890.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-23.0-22.4-18.5-18.0-17.4-18.7-19.1-18.1-18.2-18.5-19.6-17.7-15.9-13.2-10.9-10.1-7.6-6.4-5.1-4.0-4.0-4.2-4.5-3.2-3.1-2.9-1.6-0.9-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.4-0.4-0.4-0.5-0.6-1.0-7.8
Percentage of Assets-2.1-1.9-1.7-1.7-1.7-1.8-1.7-1.7-1.6-1.5-1.5-1.3-1.2-1.0-0.9-0.8-0.6-0.5-0.4-0.3-0.3-0.3-0.4-0.3-0.2-0.2-0.1-0.1-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.00.00.00.0-0.00.00.0
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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
Value12121212121212121212121212121212121212121212121212121211111111111111111111111111111110.08.0
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 Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Additional Paid In Capital

us-gaap:AdditionalPaidInCapital

us-gaap:AdditionalPaidInCapital


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
Value3344033910338123374433728337113268032639326023253532474324753245431653311113106631021309903094430797307833076930749307263071830632305432948829438293842927729221281372807228011269642692726920267822674426714266682642316859
Percentage of AdditionalPaidInCapital100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.34.44.34.34.44.64.44.44.54.64.74.64.64.44.34.33.43.43.43.23.33.43.53.53.43.33.43.23.23.33.33.63.43.33.33.23.33.33.33.43.53.53.63.1

us-gaap:AdditionalPaidInCapital us-gaap:ConsolidatedEntities

srt:ParentCompany


Additional
Period End2020-12-312019-12-312018-12-312017-12-31
Value33812326803247431111
Percentage of AdditionalPaidInCapital100.0100.0100.0100.0
Percentage of Assets4.34.44.74.3
Percentage of Assets srt:ParentCompany36.038.945.938.4

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
Value3931836373364913678236568369193307832948312092994428926273312687026453265272441035270348633448037054369243730135519351533437633754320203092829259283192733226766258242595825205259202690424640272892695123399221932136319501
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 Assets5.14.74.64.74.85.04.54.44.34.24.23.93.83.73.73.43.83.83.83.93.94.14.04.03.83.73.53.43.23.23.13.33.23.13.03.13.33.03.43.43.03.02.93.6

us-gaap:RetainedEarningsAccumulatedDeficit us-gaap:ConsolidatedEntities

srt:ParentCompany


Retained
Period End2020-12-312019-12-312018-12-312017-12-31
Value36491330782892626527
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0
Percentage of Assets4.64.54.23.7
Percentage of Assets srt:ParentCompany38.939.440.932.7

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value12309103971807216036185631275713052151971163169111722100028545634742770058436639653471359514632108654771689164431152910649109921105882155104510062021058011397113258735726658866813335611151000-3058.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.61.42.32.12.41.71.82.01.61.00.30.10.40.81.01.00.90.70.61.41.61.20.50.80.71.31.21.21.20.90.60.60.81.31.41.31.10.90.70.90.40.10.1-0.6

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:ConsolidatedEntities

srt:ParentCompany


Accumulated
Period End2020-12-312019-12-312018-12-312017-12-31
Value180721305217227427
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0
Percentage of Assets2.31.80.31.0
Percentage of Assets srt:ParentCompany19.215.52.49.2

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312010-12-31
Value-1836.0-1848.0-1863.0-1954.0-1968.0-1985.0-2002.0-1961.0-1984.0-2004.0-2028.0-2051.0-2179.0-2206.0-1845.0-1878.0-1923.0-1951.0-1972.0-2121.0-1983.0-2024.0-2052.0-2169.0-2206.0-2246.0-2283.0-1537.0-1588.0-1622.0-1651.0-2382.0-2416.0-2452.0-2489.0-1943.0-1449.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax-14.9-17.8-10.3-12.2-10.6-15.6-15.3-12.9-17.1-29.0-117.8-205.1-76.3-39.2-24.8-26.8-22.8-30.5-36.9-15.6-13.6-18.6-43.0-31.5-34.2-19.5-21.4-14.0-14.4-19.7-32.3-46.7-39.0-23.2-21.8-33.0-144.9
Percentage of Assets-0.2-0.2-0.2-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.3-0.2-0.2-0.2-0.2-0.3-0.3-0.3-0.3-0.2-0.2
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value107351815133155415449171698282120411614161394811656839051061156918531865
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax8.75.08.419.722.438.513.018.617.523.493.794.840.812.112.215.118.629.034.9
Percentage of Assets0.10.10.20.40.50.70.20.40.30.20.20.10.20.10.10.10.20.20.2
Percentage of Assets us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312010-12-31
Value175351619422217197142175915452182831950916340122487042699885381086412757122821346911336107661730618204154461031512315117611620615159138311390911276818387049709133321359076893161
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax142.5155.8122.9122.9117.2121.1140.1128.4140.5177.2408.9699.8299.2192.8171.8175.3159.7177.2201.3127.3124.4142.2216.2178.7182.5140.6142.4125.8125.8137.3160.3170.7156.5126.0119.2130.6316.1
Percentage of Assets2.32.12.82.52.82.12.52.62.21.71.01.01.21.51.81.71.51.21.21.81.91.71.21.41.31.81.71.51.51.30.91.11.21.61.61.00.4
Percentage of Assets us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedTranslationAdjustment


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312010-12-31
Value-4463.0-4467.0-3795.0-4879.0-5382.0-5627.0-4927.0-5172.0-4766.0-4947.0-4905.0-4895.0-4670.0-3707.0-4390.0-4460.0-4679.0-4842.0-5312.0-3941.0-4020.0-4282.0-4950.0-4574.0-4214.0-3986.0-3303.0-2160.0-1739.0-1843.0-1659.0-1618.0-1825.0-1205.0-533.0-648.0-528.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax-36.3-43.0-21.0-30.4-29.0-44.1-37.7-34.0-41.0-71.6-284.8-489.5-163.6-65.8-59.1-63.7-55.5-75.7-99.3-29.0-27.5-39.4-103.8-66.4-65.4-34.6-31.0-19.7-15.7-22.4-32.5-31.7-29.4-11.4-4.7-11.0-52.8
Percentage of Assets-0.6-0.6-0.5-0.6-0.7-0.8-0.7-0.7-0.7-0.7-0.7-0.7-0.7-0.5-0.6-0.6-0.5-0.5-0.6-0.4-0.4-0.5-0.6-0.5-0.5-0.4-0.4-0.2-0.2-0.2-0.2-0.2-0.2-0.1-0.1-0.1-0.1
Percentage of Assets us-gaap:AccumulatedTranslationAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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
Value15941148281382913258131781317812678124281164310893103939193855774426401577952844332347431723172317231022279217221581172615176172172172172172172172172172172172172172172190
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 Assets2.11.91.71.71.71.81.71.71.61.51.51.31.21.00.90.80.60.50.40.30.30.30.40.30.20.20.10.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStockValue us-gaap:ConsolidatedEntities

srt:ParentCompany


Treasury
Period End2020-12-312019-12-312018-12-312017-12-31
Value1382912678103936401
Percentage of TreasuryStockValue100.0100.0100.0100.0
Percentage of Assets1.71.71.50.9
Percentage of Assets srt:ParentCompany14.715.114.77.9

Minority Interest

us-gaap:MinorityInterest

us-gaap:MinorityInterest


Minority
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
Value285273259253247242238251235229217184199198194230214179171180194190470485520544507494583574543341405422384349323344374397400405371377
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.10.10.10.10.10.10.10.10.00.00.10.00.00.00.00.00.10.10.10.10.1

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
Value225414965153379384618475181414623872072130135335608129620504734340120985644292842911964460226394202268654264029443724846147267045812733187231866344575812502247329235012803126510572871
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 RevenueFromContractWithCustomerExcludingAssessedTax438.5290.526.51145.9261.1535.430.21324.6736.7614.88.31073.91709.8402.512.929.419.712.946.716.528.110.727.014.626.014.428.421.424.314.533.316.329.115.510.819.334.536.27.511.019.222.021.810.27.421.8

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
Value1009-1054.0-2162.0-6679.0-1391.0-8337.0-7093.0-5351.0557-5699.05358-6228.0-4279.0-485.0282-10009.0-2873.0-4276.08736-4678.0-4169.0-5739.0-3491.0-147.0140-6900.0-3386.0-4969.0-8864.02164-8590.012781866-9719.02146-1298.0-14944.021671114-6451.0-8804.0-8094.01055-9249.0-2522.0-7598.0
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 RevenueFromContractWithCustomerExcludingAssessedTax196.3-204.7-11.1-2017.8-429.3-2416.5-41.4-1709.6171.9-1691.134.2-1893.0-1304.6-150.61.8-62.2-16.7-26.372.3-26.4-27.3-31.1-20.5-0.80.9-36.9-17.7-26.4-48.512.7-46.57.811.9-55.012.4-7.9-81.213.66.7-31.5-51.3-50.98.2-74.3-17.7-57.6

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
Value1632-564.0-6993.0288568014157-1009.023279342316-3332.0-1081.01394218-2595.0883-693.01499-11778.0612337642401557-288.0-4287.0172327924113225-3659.0-1323.0-1794.0-7114.01324-5217.0-1039.06051240-1800.0459643242262-5248.01176830163845
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 RevenueFromContractWithCustomerExcludingAssessedTax317.5-109.5-36.0871.6209.94103.5-5.9743.5288.3687.2-21.3-328.6425.067.7-16.45.5-4.09.2-97.53.522.123.09.1-1.6-26.59.21.512.817.7-21.4-7.2-11.0-45.37.5-30.1-6.332.91.5-10.722.525.214.2-40.994.621.229.2

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

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value4895-314.0-3845.01161957496-2854.010173929-1315.0
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax952.3-61.0-19.835.060.22172.8-16.6324.91212.7-390.2

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
Value225414965153379384618475181414623872072130135335608129620504734340120985644292842911964460226394202268654264029443724846147267045812733187231866344575812502247329235012803126510572871
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 RevenueFromContractWithCustomerExcludingAssessedTax438.5290.526.51145.9261.1535.430.21324.6736.7614.88.31073.91709.8402.512.929.419.712.946.716.528.110.727.014.626.014.428.421.424.314.533.316.329.115.510.819.334.536.27.511.019.222.021.810.27.421.8

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
Value34073581587061454398593218417411381206791289112532317-81.0884826-2088.057711022018341203111521581521209413661328908972502986127-954.02295-144.01156358212371006823161557835320-620.0-1402.0-544.0
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 RevenueFromContractWithCustomerExcludingAssessedTax662.869.50.8213.344.81274.83.5697.8537.3409.813.2277.2271.6389.114.6-0.55.15.1-17.33.30.711.94.96.76.911.58.011.17.57.84.95.93.25.60.7-5.812.5-0.96.917.57.26.30.62.510.96.32.6-6.1-17.0-5.3

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
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
Value34123631587091504401588219017461385206291589412572315-75.0887829-2086.057311422038421198111921631527209413761339916975510992136-957.02303-120.01152357612301013853201547834313-625.0-1418.0-548.0
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax663.870.50.8214.246.31275.73.4699.7538.9411.013.2278.1272.6390.414.6-0.55.15.1-17.33.20.712.04.96.66.911.68.011.17.57.85.06.03.25.60.8-5.812.5-0.86.917.57.26.40.72.610.96.32.5-6.1-17.2-5.4

us-gaap:ProfitLoss us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

met:JointStockCompanyMetLifeInsuranceCompany


Profit
Period End2020-12-31
Value133
Percentage of ProfitLoss84.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax met:JointStockCompanyMetLifeInsuranceCompany0.0

met:MetLifeHongKong


Profit
Period End2020-12-312020-09-302019-12-312019-09-302019-06-30
Value0.00.00.00.0-140.0
Percentage of ProfitLoss0.00.00.00.0-8.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.0-43.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax met:MetLifeHongKong0.00.00.00.00.0

met:MetLifePolandAndGreece


Profit
Period End2021-06-30
Value190
Percentage of ProfitLoss5.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax37.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax met:MetLifePolandAndGreece0.0

met:MetropolitanPropertyAndCasualtyInsuranceCompany


Profit
Period End2021-06-30
Value1100
Percentage of ProfitLoss32.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax214.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax met:MetropolitanPropertyAndCasualtyInsuranceCompany0.0

us-gaap:ProfitLoss us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:SubsequentEventType

met:MetropolitanPropertyAndCasualtyInsuranceCompany, us-gaap:SubsequentEvent


Profit
Period End2021-06-30
Value1000
Percentage of ProfitLoss29.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax194.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax met:MetropolitanPropertyAndCasualtyInsuranceCompany us-gaap:SubsequentEvent0.0

us-gaap:ProfitLoss us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome


Profit
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
Value104-172.0422367297-220.0475-219.0152-9.0-73.0-101.0-389.07966411281-11.0-539.0141-87.0192-233.0-131.0282-317.0-65.0-193.09612030064696.0
Percentage of ProfitLoss3.0-47.4267.151.8198.0-5.080.8-10.08.7-0.6-3.5-11.0-43.56.32.9-548.031.7-1.325.824.6-76.38.7-27.7-10.925.2-14.7-4.3-9.27.09.032.86.613.50.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax20.2-33.42.2110.991.7-63.82.8-70.046.9-2.7-0.5-30.7-118.624.50.42.61.6-0.1-4.50.8-0.61.0-1.4-0.71.7-1.7-0.3-1.00.50.71.60.40.40.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ProfitLoss us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Profit
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-12.0-12.0-16.0-16.0-17.0-17.0-31.0-23.0-23.0-23.0-18.0-24.0-25.0-24.0-38.0-23.0-24.0-39.0-20.0-36.0-34.0-28.0-37.0-37.0-38.0-37.0-26.0-32.0-30.0-29.0245-35.0-34.0-37.0
Percentage of ProfitLoss-0.4-3.3-10.1-2.3-11.3-0.4-5.3-1.1-1.3-1.7-0.9-2.6-2.8-1.9-1.630.7-2.7-4.71.0-6.3-29.8-1.3-4.4-3.1-3.4-1.7-1.7-1.5-2.2-2.226.7-3.6-6.7-3.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-2.3-2.3-0.1-4.8-5.2-4.9-0.2-7.3-7.1-6.8-0.1-7.3-7.6-7.5-0.2-0.1-0.1-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.1-0.2-0.2-0.21.3-0.2-0.2-0.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Profit
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
Value104-137.0374360266-342.0467-262.07812-120.0-100.0-300.013840200280
Percentage of ProfitLoss3.0-37.7236.750.8177.3-7.879.4-12.04.50.9-5.8-10.9-33.611.01.7-266.731.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax20.2-26.61.9108.882.1-99.12.7-83.724.13.6-0.8-30.4-91.542.90.31.21.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-3