10-K Filing

METLIFE INC CIK: 1099219 FY 2020

Filing Information

Form Type	10-K
Accession Number	`0001099219-21-000050`
Period End Date	20201231
Filing Date	20210219
Fiscal Year	2020
Fiscal Period	FY
XBRL Instance	met-20201231_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 148 Income Statement 142 Cash Flow Statement 226 Stockholders Equity 59 Comprehensive Income 41

Balance Sheet 148 line items

Line Item	Tag	Value	Unit	Period
Fixed maturity securities available-for-sale, at estimated fair value (amortized cost: $310,811 and $297,655, respectively; allowance for credit loss of $81 and $0, respectively)	`AvailableForSaleSecuritiesDebtSecurities`	$327.82B	USD	Point-in-time
Fixed maturity securities available-for-sale, at estimated fair value (amortized cost: $310,811 and $297,655, respectively; allowance for credit loss of $81 and $0, respectively)	`AvailableForSaleSecuritiesDebtSecurities`	$354.81B	USD	Point-in-time
Equity securities, at estimated fair value	`AvailableForSaleSecuritiesEquitySecurities`	$1.08B	USD	Point-in-time
Equity securities, at estimated fair value	`AvailableForSaleSecuritiesEquitySecurities`	$1.34B	USD	Point-in-time
Contractholder-directed equity securities and fair value option securities, at estimated fair value (includes $0 and $3, respectively, relating to variable interest entities)	`TradingSecurities`	$13.32B	USD	Point-in-time
Contractholder-directed equity securities and fair value option securities, at estimated fair value (includes $0 and $3, respectively, relating to variable interest entities)	`TradingSecurities`	$13.10B	USD	Point-in-time
Mortgage loans (net of allowance for credit loss of $590 and $353, respectively; includes $165 and $188, respectively, under the fair value option and $0 and $59, respectively, of mortgage loans held-for-sale)	`MortgageLoansOnRealEstateCommercialAndConsumerNet`	$80.53B	USD	Point-in-time
Mortgage loans (net of allowance for credit loss of $590 and $353, respectively; includes $165 and $188, respectively, under the fair value option and $0 and $59, respectively, of mortgage loans held-for-sale)	`MortgageLoansOnRealEstateCommercialAndConsumerNet`	$83.92B	USD	Point-in-time
Policy loans	`LoansInsurancePolicy`	$9.68B	USD	Point-in-time
Policy loans	`LoansInsurancePolicy`	$9.49B	USD	Point-in-time
Real estate and real estate joint ventures (includes $169 and $127, respectively, under the fair value option and $128 and $0, respectively, of real estate held-for-sale)	`RealEstateInvestments`	$10.74B	USD	Point-in-time
Real estate and real estate joint ventures (includes $169 and $127, respectively, under the fair value option and $128 and $0, respectively, of real estate held-for-sale)	`RealEstateInvestments`	$11.93B	USD	Point-in-time
Other limited partnership interests	`OtherLimitedPartnershipInterests`	$9.47B	USD	Point-in-time
Other limited partnership interests	`OtherLimitedPartnershipInterests`	$7.72B	USD	Point-in-time
Short-term investments, principally at estimated fair value	`ShortTermInvestments`	$3.85B	USD	Point-in-time
Short-term investments, principally at estimated fair value	`ShortTermInvestments`	$3.90B	USD	Point-in-time
Fixed maturity securities available-for-sale, at estimated fair value (amortized cost: $3,400 and $3,062, respectively)	`AvailableForSaleDebtSecuritiesAmortizedCostBasis`	$297.65B	USD	Point-in-time
Other invested assets (includes $2,156 and $2,299, respectively, of leveraged and direct financing leases and $332 and $290, respectively, relating to variable interest entities)	`OtherInvestments`	$19.02B	USD	Point-in-time
Fixed maturity securities available-for-sale, at estimated fair value (amortized cost: $3,400 and $3,062, respectively)	`AvailableForSaleDebtSecuritiesAmortizedCostBasis`	$310.81B	USD	Point-in-time
Other invested assets (includes $2,156 and $2,299, respectively, of leveraged and direct financing leases and $332 and $290, respectively, relating to variable interest entities)	`OtherInvestments`	$20.59B	USD	Point-in-time
Total investments	`Investments`	$473.80B	USD	Point-in-time
Total investments	`Investments`	$508.52B	USD	Point-in-time
Amortized cost of fixed maturity securities valuation allowances	`DebtSecuritiesAvailableForSaleAllowanceForCreditLoss`	$81.00M	USD	Point-in-time
Amortized cost of fixed maturity securities valuation allowances	`DebtSecuritiesAvailableForSaleAllowanceForCreditLoss`	-	USD	Point-in-time
Cash and cash equivalents, principally at estimated fair value (includes $12 and $12, respectively, relating to variable interest entities)	`CashAndCashEquivalentsAtCarryingValue`	$19.80B	USD	Point-in-time
Contractholder-directed equity securities and fair value option securities relating to variable interest entities	`TradingSecurities`	$13.10B	USD	Point-in-time
Contractholder-directed equity securities and fair value option securities relating to variable interest entities	`TradingSecurities`	$13.32B	USD	Point-in-time
Cash and cash equivalents, principally at estimated fair value (includes $12 and $12, respectively, relating to variable interest entities)	`CashAndCashEquivalentsAtCarryingValue`	$16.60B	USD	Point-in-time
Mortgage loans valuation allowances	`AllowanceForLoanAndLeaseLossesRealEstate`	$314.00M	USD	Point-in-time
Mortgage loans valuation allowances	`AllowanceForLoanAndLeaseLossesRealEstate`	$590.00M	USD	Point-in-time
Accrued investment income	`AccruedInvestmentIncomeReceivable`	$3.39B	USD	Point-in-time
Accrued investment income	`AccruedInvestmentIncomeReceivable`	$3.52B	USD	Point-in-time
Mortgage loans valuation allowances	`AllowanceForLoanAndLeaseLossesRealEstate`	$353.00M	USD	Point-in-time
Mortgage loans valuation allowances	`AllowanceForLoanAndLeaseLossesRealEstate`	$342.00M	USD	Point-in-time
Premiums, reinsurance and other receivables (includes $4 and $4, respectively, relating to variable interest entities)	`PremiumsAndOtherReceivablesNet`	$20.44B	USD	Point-in-time
Premiums, reinsurance and other receivables (includes $4 and $4, respectively, relating to variable interest entities)	`PremiumsAndOtherReceivablesNet`	$17.87B	USD	Point-in-time
Residential mortgage loans FVO	`MortgageLoansOnRealEstateCommercialAndConsumerNet`	$83.92B	USD	Point-in-time
Residential mortgage loans FVO	`MortgageLoansOnRealEstateCommercialAndConsumerNet`	$80.53B	USD	Point-in-time
Mortgage loans held-for-sale	`LoansReceivableHeldForSaleAmount`	$59.00M	USD	Point-in-time
Deferred policy acquisition costs and value of business acquired	`DeferredPolicyAcquisitionCostsAndValueOfBusinessAcquired`	$18.89B	USD	Point-in-time
Deferred policy acquisition costs and value of business acquired	`DeferredPolicyAcquisitionCostsAndValueOfBusinessAcquired`	$17.83B	USD	Point-in-time
Deferred policy acquisition costs and value of business acquired	`DeferredPolicyAcquisitionCostsAndValueOfBusinessAcquired`	$16.39B	USD	Point-in-time
Mortgage loans held-for-sale	`LoansReceivableHeldForSaleAmount`	-	USD	Point-in-time
Goodwill	`Goodwill`	$9.42B	USD	Point-in-time
Real estate and real estate joint ventures (includes $169 and $127, respectively, under the fair value option and $128 and $0, respectively, of real estate held-for-sale)	`RealEstateInvestments`	$11.93B	USD	Point-in-time
Goodwill	`Goodwill`	$9.31B	USD	Point-in-time
Real estate and real estate joint ventures (includes $169 and $127, respectively, under the fair value option and $128 and $0, respectively, of real estate held-for-sale)	`RealEstateInvestments`	$10.74B	USD	Point-in-time
Goodwill	`Goodwill`	$10.11B	USD	Point-in-time
Goodwill	`Goodwill`	$9.59B	USD	Point-in-time
Assets held-for-sale	`AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent`	$7.42B	USD	Point-in-time
Assets held-for-sale	`AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent`	-	USD	Point-in-time
Real Estate Held-for-sale	`RealEstateHeldforsale`	$128.00M	USD	Point-in-time
Real Estate Held-for-sale	`RealEstateHeldforsale`	-	USD	Point-in-time
Other Invested Assets - Leveraged and Direct Financing Leases	`NetInvestmentInLease`	$2.30B	USD	Point-in-time
Other Invested Assets - Leveraged and Direct Financing Leases	`NetInvestmentInLease`	$2.16B	USD	Point-in-time
Other assets (includes $1 and $2, respectively, relating to variable interest entities)	`OtherAssets`	$10.52B	USD	Point-in-time
Other assets (includes $1 and $2, respectively, relating to variable interest entities)	`OtherAssets`	$11.69B	USD	Point-in-time
Separate account assets	`SeparateAccountAssets`	$188.44B	USD	Point-in-time
Other invested assets, at estimated fair value	`OtherInvestments`	$20.59B	USD	Point-in-time
Other invested assets, at estimated fair value	`OtherInvestments`	$19.02B	USD	Point-in-time
Separate account assets	`SeparateAccountAssets`	$199.97B	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$16.60B	USD	Point-in-time
Total assets	`Assets`	$795.15B	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$19.80B	USD	Point-in-time
Total assets	`Assets`	$740.46B	USD	Point-in-time
Premiums, reinsurance and other receivables relating to variable interest entities	`PremiumsAndOtherReceivablesNet`	$17.87B	USD	Point-in-time
Premiums, reinsurance and other receivables relating to variable interest entities	`PremiumsAndOtherReceivablesNet`	$20.44B	USD	Point-in-time
Other assets	`OtherAssets`	$11.69B	USD	Point-in-time
Other assets	`OtherAssets`	$10.52B	USD	Point-in-time
Future policy benefits	`LiabilityForFuturePolicyBenefitAfterReinsurance`	$206.66B	USD	Point-in-time
Future policy benefits	`LiabilityForFuturePolicyBenefitAfterReinsurance`	$194.91B	USD	Point-in-time
Long-term debt, at estimated fair value, relating to variable interest entities	`LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities`	$13.47B	USD	Point-in-time
Policyholder account balances	`PolicyholderContractDeposits`	$205.18B	USD	Point-in-time
Policyholder account balances	`PolicyholderContractDeposits`	$192.63B	USD	Point-in-time
Long-term debt, at estimated fair value, relating to variable interest entities	`LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities`	$14.60B	USD	Point-in-time
Other policy-related balances	`OtherPolicyRelatedBalances`	$17.17B	USD	Point-in-time
Other liabilities	`OtherLiabilities`	$23.61B	USD	Point-in-time
Other policy-related balances	`OtherPolicyRelatedBalances`	$17.10B	USD	Point-in-time
Other liabilities	`OtherLiabilities`	$24.18B	USD	Point-in-time
Policyholder dividends payable	`PolicyholderDividendsPayable`	$681.00M	USD	Point-in-time
Policyholder dividends payable	`PolicyholderDividendsPayable`	$587.00M	USD	Point-in-time
Policyholder dividend obligation	`ClosedBlockLiabilitiesPolicyholderDividendObligation`	$2.02B	USD	Point-in-time
Policyholder dividend obligation	`ClosedBlockLiabilitiesPolicyholderDividendObligation`	$2.97B	USD	Point-in-time
Policyholder dividend obligation	`ClosedBlockLiabilitiesPolicyholderDividendObligation`	$428.00M	USD	Point-in-time
Policyholder dividend obligation	`ClosedBlockLiabilitiesPolicyholderDividendObligation`	$2.12B	USD	Point-in-time
Preferred stock, par value	`PreferredStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Preferred stock, par value	`PreferredStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Preferred Stock, Liquidation Preference, Value	`PreferredStockLiquidationPreferenceValue`	$3.40B	USD	Point-in-time
Payables for collateral under securities loaned and other transactions	`PayablesForCollateralUnderSecuritiesLoanedAndOtherTransactions`	$26.75B	USD	Point-in-time
Payables for collateral under securities loaned and other transactions	`PayablesForCollateralUnderSecuritiesLoanedAndOtherTransactions`	$29.48B	USD	Point-in-time
Preferred Stock, Liquidation Preference, Value	`PreferredStockLiquidationPreferenceValue`	$4.41B	USD	Point-in-time
Common stock, par value	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Short-term debt	`ShortTermBorrowings`	$235.00M	USD	Point-in-time
Common stock, par value	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Short-term debt	`ShortTermBorrowings`	$393.00M	USD	Point-in-time
Common stock, shares authorized	`CommonStockSharesAuthorized`	3.00B	shares	Point-in-time
Long-term debt (includes $5 and $5, respectively, relating to variable interest entities)	`LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities`	$13.47B	USD	Point-in-time
Long-term debt (includes $5 and $5, respectively, relating to variable interest entities)	`LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities`	$14.60B	USD	Point-in-time
Common stock, shares authorized	`CommonStockSharesAuthorized`	3.00B	shares	Point-in-time
Common stock, shares issued	`CommonStockSharesIssued`	1.18B	shares	Point-in-time
Common stock, shares issued	`CommonStockSharesIssued`	1.18B	shares	Point-in-time
Collateral financing arrangement	`SecuredDebt`	$845.00M	USD	Point-in-time
Collateral financing arrangement	`SecuredDebt`	$993.00M	USD	Point-in-time
Common stock, shares outstanding	`CommonStockSharesOutstanding`	892.91M	shares	Point-in-time
Common stock, shares outstanding	`CommonStockSharesOutstanding`	915.34M	shares	Point-in-time
Junior subordinated debt securities	`JuniorSubordinatedNotes`	$3.15B	USD	Point-in-time
Junior subordinated debt securities	`JuniorSubordinatedNotes`	$3.15B	USD	Point-in-time
Current income tax payable	`TaxesPayableCurrent`	$129.00M	USD	Point-in-time
Current income tax payable	`TaxesPayableCurrent`	$363.00M	USD	Point-in-time
Treasury stock, shares	`TreasuryStockShares`	288.70M	shares	Point-in-time
Treasury stock, shares	`TreasuryStockShares`	262.34M	shares	Point-in-time
Deferred Income Tax Liabilities, Net	`DeferredIncomeTaxLiabilitiesNet`	$9.10B	USD	Point-in-time
Deferred Income Tax Liabilities, Net	`DeferredIncomeTaxLiabilitiesNet`	$11.01B	USD	Point-in-time
Liabilities held-for-sale	`LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation`	-	USD	Point-in-time
Liabilities held-for-sale	`LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation`	-	USD	Point-in-time
Liabilities held-for-sale	`LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation`	$4.65B	USD	Point-in-time
Other liabilities (includes $1 and $1, respectively, relating to variable interest entities)	`OtherLiabilities`	$24.18B	USD	Point-in-time
Other liabilities (includes $1 and $1, respectively, relating to variable interest entities)	`OtherLiabilities`	$23.61B	USD	Point-in-time
Separate account liabilities	`SeparateAccountsLiability`	$199.97B	USD	Point-in-time
Separate account liabilities	`SeparateAccountsLiability`	$188.44B	USD	Point-in-time
Total liabilities	`Liabilities`	$674.08B	USD	Point-in-time
Total liabilities	`Liabilities`	$720.33B	USD	Point-in-time
Contingencies, Commitments and Guarantees (Note 21)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Contingencies, Commitments and Guarantees (Note 21)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Preferred stock, par value $0.01 per share; $4,405 and $3,405, respectively, aggregate liquidation preference	`PreferredStockValue`	-	USD	Point-in-time
Preferred stock, par value $0.01 per share; $4,405 and $3,405, respectively, aggregate liquidation preference	`PreferredStockValue`	-	USD	Point-in-time
Common stock, par value $0.01 per share; 3,000,000,000 shares authorized; 1,181,614,288 and 1,177,680,299 shares issued, respectively; 892,910,600 and 915,338,098 shares outstanding, respectively	`CommonStockValue`	$12.00M	USD	Point-in-time
Common stock, par value $0.01 per share; 3,000,000,000 shares authorized; 1,181,614,288 and 1,177,680,299 shares issued, respectively; 892,910,600 and 915,338,098 shares outstanding, respectively	`CommonStockValue`	$12.00M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapital`	$33.81B	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapital`	$32.68B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$36.49B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$33.08B	USD	Point-in-time
Treasury stock, at cost; 288,703,688 and 262,342,201 shares, respectively	`TreasuryStockValue`	$12.68B	USD	Point-in-time
Treasury stock, at cost; 288,703,688 and 262,342,201 shares, respectively	`TreasuryStockValue`	$13.83B	USD	Point-in-time
Accumulated other comprehensive income (loss)	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$7.43B	USD	Point-in-time
Accumulated other comprehensive income (loss)	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$18.07B	USD	Point-in-time
Accumulated other comprehensive income (loss)	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$1.72B	USD	Point-in-time
Accumulated other comprehensive income (loss)	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$13.05B	USD	Point-in-time
Total MetLife, Inc.s stockholders equity	`StockholdersEquity`	$74.56B	USD	Point-in-time
Total MetLife, Inc.s stockholders equity	`StockholdersEquity`	$66.14B	USD	Point-in-time
Noncontrolling interests	`MinorityInterest`	$259.00M	USD	Point-in-time
Noncontrolling interests	`MinorityInterest`	$238.00M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$74.82B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$66.38B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$58.87B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$52.96B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$795.15B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$740.46B	USD	Point-in-time

Income Statement 142 line items

Line Item	Tag	Value	Unit	Period
Premiums	`PremiumsEarnedNet`	$42.23B	USD	Annual
Premiums	`PremiumsEarnedNet`	$42.03B	USD	Annual
Premiums	`PremiumsEarnedNet`	$43.84B	USD	Annual
Universal life and investment-type product policy fees	`InsuranceCommissionsAndFees`	$5.50B	USD	Annual
Universal life and investment-type product policy fees	`InsuranceCommissionsAndFees`	$5.60B	USD	Annual
Universal life and investment-type product policy fees	`InsuranceCommissionsAndFees`	$5.60B	USD	Annual
Net investment income	`NetInvestmentIncome`	$17.12B	USD	Annual
Net investment income	`NetInvestmentIncome`	$18.87B	USD	Annual
Net investment income	`NetInvestmentIncome`	$16.17B	USD	Annual
Other revenues	`OtherIncome`	$1.85B	USD	Annual
Other revenues	`OtherIncome`	$1.84B	USD	Annual
Other revenues	`OtherIncome`	$1.88B	USD	Annual
Net investment gains (losses)	`GainLossOnInvestments`	$-110.00M	USD	Annual
Net investment gains (losses)	`GainLossOnInvestments`	$444.00M	USD	Annual
Net investment gains (losses)	`GainLossOnInvestments`	$-298.00M	USD	Annual
Net derivative gains (losses)	`GainLossOnDerivativeInstrumentsNetPretax`	$628.00M	USD	Annual
Net derivative gains (losses)	`GainLossOnDerivativeInstrumentsNetPretax`	$851.00M	USD	Annual
Net derivative gains (losses)	`GainLossOnDerivativeInstrumentsNetPretax`	$1.35B	USD	Annual
Total revenues	`Revenues`	$18.31B	USD	1 Quarter
Total revenues	`Revenues`	$69.62B	USD	Annual
Total revenues	`Revenues`	$67.84B	USD	Annual
Total revenues	`Revenues`	$17.14B	USD	1 Quarter
Total revenues	`Revenues`	$67.94B	USD	Annual
Total revenues	`Revenues`	$16.30B	USD	1 Quarter
Total revenues	`Revenues`	$14.10B	USD	1 Quarter
Total revenues	`Revenues`	$18.68B	USD	1 Quarter
Total revenues	`Revenues`	$19.42B	USD	1 Quarter
Total revenues	`Revenues`	$17.50B	USD	1 Quarter
Total revenues	`Revenues`	$16.02B	USD	1 Quarter
Policyholder benefits and claims	`PolicyholderBenefitsAndClaimsIncurredNet`	$41.46B	USD	Annual
Policyholder benefits and claims	`PolicyholderBenefitsAndClaimsIncurredNet`	$41.46B	USD	Annual
Policyholder benefits and claims	`PolicyholderBenefitsAndClaimsIncurredNet`	$42.66B	USD	Annual
Interest credited to policyholder account balances	`InterestCreditedToPolicyholdersAccountBalances`	$4.01B	USD	Annual
Interest credited to policyholder account balances	`InterestCreditedToPolicyholdersAccountBalances`	$5.21B	USD	Annual
Interest credited to policyholder account balances	`InterestCreditedToPolicyholdersAccountBalances`	$6.46B	USD	Annual
Policyholder dividends	`PolicyholderDividends`	$1.25B	USD	Annual
Policyholder dividends	`PolicyholderDividends`	$1.09B	USD	Annual
Policyholder dividends	`PolicyholderDividends`	$1.21B	USD	Annual
Other expenses	`OperatingExpenses`	$13.15B	USD	Annual
Other expenses	`OperatingExpenses`	$13.71B	USD	Annual
Other expenses	`OperatingExpenses`	$13.69B	USD	Annual
Total expenses	`BenefitsLossesAndExpenses`	$17.18B	USD	1 Quarter
Total expenses	`BenefitsLossesAndExpenses`	$60.91B	USD	Annual
Total expenses	`BenefitsLossesAndExpenses`	$13.90B	USD	1 Quarter
Total expenses	`BenefitsLossesAndExpenses`	$12.67B	USD	1 Quarter
Total expenses	`BenefitsLossesAndExpenses`	$61.63B	USD	Annual
Total expenses	`BenefitsLossesAndExpenses`	$15.09B	USD	1 Quarter
Total expenses	`BenefitsLossesAndExpenses`	$15.89B	USD	1 Quarter
Total expenses	`BenefitsLossesAndExpenses`	$14.56B	USD	1 Quarter
Total expenses	`BenefitsLossesAndExpenses`	$19.25B	USD	1 Quarter
Total expenses	`BenefitsLossesAndExpenses`	$15.20B	USD	1 Quarter
Total expenses	`BenefitsLossesAndExpenses`	$62.83B	USD	Annual
Income (loss) before provision for income tax	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$6.93B	USD	Annual
Income (loss) before provision for income tax	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$6.31B	USD	Annual
Income (loss) before provision for income tax	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$6.79B	USD	Annual
Provision for income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$1.18B	USD	Annual
Provision for income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$886.00M	USD	Annual
Provision for income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$1.51B	USD	Annual
Net income (loss)	`ProfitLoss`	$158.00M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$709.00M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$2.19B	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$5.42B	USD	Annual
Net income (loss)	`ProfitLoss`	$5.91B	USD	Annual
Net income (loss)	`ProfitLoss`	$1.75B	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$1.39B	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$5.13B	USD	Annual
Net income (loss)	`ProfitLoss`	$588.00M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$150.00M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$4.40B	USD	1 Quarter
Less: Net income (loss) attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$5.00M	USD	1 Quarter
Less: Net income (loss) attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$-5.00M	USD	1 Quarter
Less: Net income (loss) attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$11.00M	USD	Annual
Less: Net income (loss) attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$5.00M	USD	1 Quarter
Less: Net income (loss) attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$3.00M	USD	1 Quarter
Less: Net income (loss) attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$3.00M	USD	1 Quarter
Less: Net income (loss) attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$6.00M	USD	1 Quarter
Less: Net income (loss) attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$5.00M	USD	Annual
Less: Net income (loss) attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$10.00M	USD	Annual
Less: Net income (loss) attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$4.00M	USD	1 Quarter
Less: Net income (loss) attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	-	USD	1 Quarter
Net income (loss) attributable to MetLife, Inc.	`NetIncomeLoss`	$5.41B	USD	Annual
Net income (loss) attributable to MetLife, Inc.	`NetIncomeLoss`	$4.40B	USD	1 Quarter
Net income (loss) attributable to MetLife, Inc.	`NetIncomeLoss`	$1.74B	USD	1 Quarter
Net income (loss) attributable to MetLife, Inc.	`NetIncomeLoss`	$5.12B	USD	Annual
Net income (loss) attributable to MetLife, Inc.	`NetIncomeLoss`	$2.18B	USD	1 Quarter
Net income (loss) attributable to MetLife, Inc.	`NetIncomeLoss`	$158.00M	USD	1 Quarter
Net income (loss) attributable to MetLife, Inc.	`NetIncomeLoss`	$1.38B	USD	1 Quarter
Net income (loss) attributable to MetLife, Inc.	`NetIncomeLoss`	$5.90B	USD	Annual
Net income (loss) attributable to MetLife, Inc.	`NetIncomeLoss`	$145.00M	USD	1 Quarter
Net income (loss) attributable to MetLife, Inc.	`NetIncomeLoss`	$593.00M	USD	1 Quarter
Net income (loss) attributable to MetLife, Inc.	`NetIncomeLoss`	$706.00M	USD	1 Quarter
Less: Preferred stock dividends	`DividendsPreferredStock`	$59.00M	USD	1 Quarter
Less: Preferred stock dividends	`DividendsPreferredStock`	$57.00M	USD	1 Quarter
Less: Preferred stock dividends	`DividendsPreferredStock`	$34.00M	USD	1 Quarter
Less: Preferred stock dividends	`DividendsPreferredStock`	$202.00M	USD	Annual
Less: Preferred stock dividends	`DividendsPreferredStock`	$77.00M	USD	1 Quarter
Less: Preferred stock dividends	`DividendsPreferredStock`	$32.00M	USD	1 Quarter
Less: Preferred stock dividends	`DividendsPreferredStock`	$178.00M	USD	Annual
Less: Preferred stock dividends	`DividendsPreferredStock`	$32.00M	USD	1 Quarter
Less: Preferred stock dividends	`DividendsPreferredStock`	$141.00M	USD	Annual
Less: Preferred stock dividends	`DividendsPreferredStock`	$32.00M	USD	1 Quarter
Less: Preferred stock dividends	`DividendsPreferredStock`	$57.00M	USD	1 Quarter
Preferred stock redemption premium	`PreferredStockRedemptionPremium`	-	USD	Annual
Preferred stock redemption premium	`PreferredStockRedemptionPremium`	-	USD	Annual
Preferred stock redemption premium	`PreferredStockRedemptionPremium`	$14.00M	USD	Annual
Preferred stock redemption premium	`PreferredStockRedemptionPremium`	$14.00M	USD	1 Quarter
Preferred stock redemption premium	`PreferredStockRedemptionPremium`	-	USD	1 Quarter
Preferred stock redemption premium	`PreferredStockRedemptionPremium`	-	USD	1 Quarter
Preferred stock redemption premium	`PreferredStockRedemptionPremium`	-	USD	1 Quarter
Net income (loss) available to MetLife, Inc.s common shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$1.68B	USD	1 Quarter
Net income (loss) available to MetLife, Inc.s common shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$5.72B	USD	Annual
Net income (loss) available to MetLife, Inc.s common shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$536.00M	USD	1 Quarter
Net income (loss) available to MetLife, Inc.s common shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$633.00M	USD	1 Quarter
Net income (loss) available to MetLife, Inc.s common shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$1.35B	USD	1 Quarter
Net income (loss) available to MetLife, Inc.s common shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$5.19B	USD	Annual
Net income (loss) available to MetLife, Inc.s common shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$4.37B	USD	1 Quarter
Net income (loss) available to MetLife, Inc.s common shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$4.98B	USD	Annual
Net income (loss) available to MetLife, Inc.s common shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$124.00M	USD	1 Quarter
Net income (loss) available to MetLife, Inc.s common shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$2.15B	USD	1 Quarter
Net income (loss) available to MetLife, Inc.s common shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$68.00M	USD	1 Quarter
Basic	`EarningsPerShareBasic`	$5.72	USD	Annual
Basic	`EarningsPerShareBasic`	$1.41	USD	1 Quarter
Basic	`EarningsPerShareBasic`	$2.31	USD	1 Quarter
Basic	`EarningsPerShareBasic`	$4.78	USD	1 Quarter
Basic	`EarningsPerShareBasic`	$6.10	USD	Annual
Basic	`EarningsPerShareBasic`	$1.78	USD	1 Quarter
Basic	`EarningsPerShareBasic`	$4.95	USD	Annual
Basic	`EarningsPerShareBasic`	$0.58	USD	1 Quarter
Basic	`EarningsPerShareBasic`	$0.70	USD	1 Quarter
Basic	`EarningsPerShareBasic`	$0.07	USD	1 Quarter
Basic	`EarningsPerShareBasic`	$0.14	USD	1 Quarter
Diluted	`EarningsPerShareDiluted`	$1.40	USD	1 Quarter
Diluted	`EarningsPerShareDiluted`	$0.14	USD	1 Quarter
Diluted	`EarningsPerShareDiluted`	$4.75	USD	1 Quarter
Diluted	`EarningsPerShareDiluted`	$0.07	USD	1 Quarter
Diluted	`EarningsPerShareDiluted`	$5.68	USD	Annual
Diluted	`EarningsPerShareDiluted`	$1.77	USD	1 Quarter
Diluted	`EarningsPerShareDiluted`	$6.06	USD	Annual
Diluted	`EarningsPerShareDiluted`	$2.30	USD	1 Quarter
Diluted	`EarningsPerShareDiluted`	$0.58	USD	1 Quarter
Diluted	`EarningsPerShareDiluted`	$0.69	USD	1 Quarter
Diluted	`EarningsPerShareDiluted`	$4.91	USD	Annual

Cash Flow Statement 226 line items

Line Item	Tag	Value	Unit	Period
Net income (loss)	`ProfitLoss`	$709.00M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$2.19B	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$5.42B	USD	Annual
Net income (loss)	`ProfitLoss`	$5.91B	USD	Annual
Net income (loss)	`ProfitLoss`	$1.75B	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$1.39B	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$5.13B	USD	Annual
Net income (loss)	`ProfitLoss`	$158.00M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$588.00M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$150.00M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$4.40B	USD	1 Quarter
Depreciation and amortization expenses	`OtherDepreciationAndAmortization`	$630.00M	USD	Annual
Depreciation and amortization expenses	`OtherDepreciationAndAmortization`	$628.00M	USD	Annual
Depreciation and amortization expenses	`OtherDepreciationAndAmortization`	$619.00M	USD	Annual
Amortization of premiums and accretion of discounts associated with investments, net	`AccretionAmortizationOfDiscountsAndPremiumsInvestments`	$999.00M	USD	Annual
Amortization of premiums and accretion of discounts associated with investments, net	`AccretionAmortizationOfDiscountsAndPremiumsInvestments`	$816.00M	USD	Annual
Amortization of premiums and accretion of discounts associated with investments, net	`AccretionAmortizationOfDiscountsAndPremiumsInvestments`	$1.01B	USD	Annual
(Gains) losses on investments and from sales of businesses, net	`GainsLossesOnInvestmentsAndFromSalesOfBusinessesNet`	$-298.00M	USD	Annual
(Gains) losses on investments and from sales of businesses, net	`GainsLossesOnInvestmentsAndFromSalesOfBusinessesNet`	$444.00M	USD	Annual
(Gains) losses on investments and from sales of businesses, net	`GainsLossesOnInvestmentsAndFromSalesOfBusinessesNet`	$-110.00M	USD	Annual
(Gains) losses on derivatives, net	`GainsLossesOnDerivativesNet`	$135.00M	USD	Annual
(Gains) losses on derivatives, net	`GainsLossesOnDerivativesNet`	$207.00M	USD	Annual
(Gains) losses on derivatives, net	`GainsLossesOnDerivativesNet`	$656.00M	USD	Annual
(Income) loss from equity method investments, net of dividends or distributions	`IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions`	$-76.00M	USD	Annual
(Income) loss from equity method investments, net of dividends or distributions	`IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions`	$-254.00M	USD	Annual
(Income) loss from equity method investments, net of dividends or distributions	`IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions`	$-251.00M	USD	Annual
Interest credited to policyholder account balances	`InterestCreditedtopolicyholdersaccountbalances1`	$6.46B	USD	Annual
Interest credited to policyholder account balances	`InterestCreditedtopolicyholdersaccountbalances1`	$5.35B	USD	Annual
Interest credited to policyholder account balances	`InterestCreditedtopolicyholdersaccountbalances1`	$4.01B	USD	Annual
Universal life and investment-type product policy fees	`InsuranceCommissionsandFees1`	$3.66B	USD	Annual
Universal life and investment-type product policy fees	`InsuranceCommissionsandFees1`	$5.60B	USD	Annual
Universal life and investment-type product policy fees	`InsuranceCommissionsandFees1`	$5.50B	USD	Annual
Change in contractholder-directed equity securities and fair value option securities	`IncreaseDecreaseInTradingSecurities`	$-131.00M	USD	Annual
Change in contractholder-directed equity securities and fair value option securities	`IncreaseDecreaseInTradingSecurities`	$139.00M	USD	Annual
Change in contractholder-directed equity securities and fair value option securities	`IncreaseDecreaseInTradingSecurities`	$-2.21B	USD	Annual
Change in accrued investment income	`IncreaseDecreaseInAccruedInvestmentIncomeReceivable`	$-104.00M	USD	Annual
Change in accrued investment income	`IncreaseDecreaseInAccruedInvestmentIncomeReceivable`	$121.00M	USD	Annual
Change in accrued investment income	`IncreaseDecreaseInAccruedInvestmentIncomeReceivable`	$-8.00M	USD	Annual
Change in premiums, reinsurance and other receivables	`IncreaseDecreaseInAccountsAndOtherReceivables`	$514.00M	USD	Annual
Change in premiums, reinsurance and other receivables	`IncreaseDecreaseInAccountsAndOtherReceivables`	$1.81B	USD	Annual
Change in premiums, reinsurance and other receivables	`IncreaseDecreaseInAccountsAndOtherReceivables`	$-842.00M	USD	Annual
Change in deferred policy acquisition costs and value of business acquired, net	`IncreaseDecreaseInDeferredPolicyAcquisitionCosts`	$463.00M	USD	Annual
Change in deferred policy acquisition costs and value of business acquired, net	`IncreaseDecreaseInDeferredPolicyAcquisitionCosts`	$-101.00M	USD	Annual
Change in deferred policy acquisition costs and value of business acquired, net	`IncreaseDecreaseInDeferredPolicyAcquisitionCosts`	$249.00M	USD	Annual
Change in income tax	`IncreaseDecreaseInAccruedIncomeTaxesPayable`	$233.00M	USD	Annual
Change in income tax	`IncreaseDecreaseInAccruedIncomeTaxesPayable`	$940.00M	USD	Annual
Change in income tax	`IncreaseDecreaseInAccruedIncomeTaxesPayable`	$-11.00M	USD	Annual
Change in other assets	`IncreaseDecreaseInOtherOperatingAssets`	$-426.00M	USD	Annual
Change in other assets	`IncreaseDecreaseInOtherOperatingAssets`	$361.00M	USD	Annual
Change in other assets	`IncreaseDecreaseInOtherOperatingAssets`	$-260.00M	USD	Annual
Change in insurance-related liabilities and policy-related balances	`IncreaseDecreaseInInsuranceLiabilities`	$7.80B	USD	Annual
Change in insurance-related liabilities and policy-related balances	`IncreaseDecreaseInInsuranceLiabilities`	$7.45B	USD	Annual
Change in insurance-related liabilities and policy-related balances	`IncreaseDecreaseInInsuranceLiabilities`	$5.11B	USD	Annual
Change in other liabilities	`IncreaseDecreaseInOtherOperatingLiabilities`	$-1.06B	USD	Annual
Change in other liabilities	`IncreaseDecreaseInOtherOperatingLiabilities`	$-483.00M	USD	Annual
Change in other liabilities	`IncreaseDecreaseInOtherOperatingLiabilities`	$71.00M	USD	Annual
Other, net	`OtherOperatingActivitiesCashFlowStatement`	$285.00M	USD	Annual
Other, net	`OtherOperatingActivitiesCashFlowStatement`	$351.00M	USD	Annual
Other, net	`OtherOperatingActivitiesCashFlowStatement`	$-62.00M	USD	Annual
Net cash provided by (used in) operating activities	`NetCashProvidedByUsedInOperatingActivities`	$11.64B	USD	Annual
Net cash provided by (used in) operating activities	`NetCashProvidedByUsedInOperatingActivities`	$11.74B	USD	Annual
Net cash provided by (used in) operating activities	`NetCashProvidedByUsedInOperatingActivities`	$13.79B	USD	Annual
Sales, maturities and repayments of fixed maturity securities available-for-sale	`ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities`	$77.98B	USD	Annual
Sales, maturities and repayments of fixed maturity securities available-for-sale	`ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities`	$106.68B	USD	Annual
Sales, maturities and repayments of fixed maturity securities available-for-sale	`ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities`	$77.82B	USD	Annual
Sales, maturities and repayments of equity securities	`ProceedsFromSaleOfAvailableForSaleSecuritiesEquity`	$342.00M	USD	Annual
Sales, maturities and repayments of equity securities	`ProceedsFromSaleOfAvailableForSaleSecuritiesEquity`	$294.00M	USD	Annual
Sales, maturities and repayments of equity securities	`ProceedsFromSaleOfAvailableForSaleSecuritiesEquity`	$367.00M	USD	Annual
Sales, maturities and repayments of mortgage loans	`ProceedsFromSaleAndCollectionOfMortgageNotesReceivable`	$12.84B	USD	Annual
Sales, maturities and repayments of mortgage loans	`ProceedsFromSaleAndCollectionOfMortgageNotesReceivable`	$9.92B	USD	Annual
Sales, maturities and repayments of mortgage loans	`ProceedsFromSaleAndCollectionOfMortgageNotesReceivable`	$11.30B	USD	Annual
Sales, maturities and repayments of real estate and real estate joint ventures	`ProceedsFromRealEstateAndRealEstateJointVentures`	$1.23B	USD	Annual
Sales, maturities and repayments of real estate and real estate joint ventures	`ProceedsFromRealEstateAndRealEstateJointVentures`	$120.00M	USD	Annual
Sales, maturities and repayments of real estate and real estate joint ventures	`ProceedsFromRealEstateAndRealEstateJointVentures`	$1.12B	USD	Annual
Sales, maturities and repayments of other limited partnership interests	`ProceedsFromLimitedPartnershipInvestments`	$675.00M	USD	Annual
Sales, maturities and repayments of other limited partnership interests	`ProceedsFromLimitedPartnershipInvestments`	$625.00M	USD	Annual
Sales, maturities and repayments of other limited partnership interests	`ProceedsFromLimitedPartnershipInvestments`	$597.00M	USD	Annual
Purchases of fixed maturity securities available-for-sale	`PaymentsToAcquireAvailableForSaleSecuritiesDebt`	$105.40B	USD	Annual
Purchases of fixed maturity securities available-for-sale	`PaymentsToAcquireAvailableForSaleSecuritiesDebt`	$89.63B	USD	Annual
Purchases of fixed maturity securities available-for-sale	`PaymentsToAcquireAvailableForSaleSecuritiesDebt`	$87.45B	USD	Annual
Purchases of equity securities	`PaymentsToAcquireAvailableForSaleSecuritiesEquity`	$130.00M	USD	Annual
Purchases of equity securities	`PaymentsToAcquireAvailableForSaleSecuritiesEquity`	$169.00M	USD	Annual
Purchases of equity securities	`PaymentsToAcquireAvailableForSaleSecuritiesEquity`	$235.00M	USD	Annual
Purchases of mortgage loans	`PaymentsToAcquireMortgageNotesReceivable`	$17.06B	USD	Annual
Purchases of mortgage loans	`PaymentsToAcquireMortgageNotesReceivable`	$17.66B	USD	Annual
Purchases of mortgage loans	`PaymentsToAcquireMortgageNotesReceivable`	$14.65B	USD	Annual
Purchases of real estate and real estate joint ventures	`PaymentsToAcquireRealEstateAndRealEstateJointVentures`	$1.12B	USD	Annual
Purchases of real estate and real estate joint ventures	`PaymentsToAcquireRealEstateAndRealEstateJointVentures`	$1.96B	USD	Annual
Purchases of real estate and real estate joint ventures	`PaymentsToAcquireRealEstateAndRealEstateJointVentures`	$1.29B	USD	Annual
Purchases of other limited partnership interests	`PaymentsToAcquireLimitedPartnershipInterests`	$1.98B	USD	Annual
Purchases of other limited partnership interests	`PaymentsToAcquireLimitedPartnershipInterests`	$1.67B	USD	Annual
Purchases of other limited partnership interests	`PaymentsToAcquireLimitedPartnershipInterests`	$1.41B	USD	Annual
Cash received in connection with freestanding derivatives	`Cashreceivedinconnectionwithfreestandingderivatives`	$4.85B	USD	Annual
Cash received in connection with freestanding derivatives	`Cashreceivedinconnectionwithfreestandingderivatives`	$3.78B	USD	Annual
Cash received in connection with freestanding derivatives	`Cashreceivedinconnectionwithfreestandingderivatives`	$2.91B	USD	Annual
Cash paid in connection with freestanding derivatives	`CashPaidInConnectionWithFreestandingDerivatives`	$4.17B	USD	Annual
Cash paid in connection with freestanding derivatives	`CashPaidInConnectionWithFreestandingDerivatives`	$4.25B	USD	Annual
Cash paid in connection with freestanding derivatives	`CashPaidInConnectionWithFreestandingDerivatives`	$3.75B	USD	Annual
Purchases of businesses	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$1.68B	USD	Annual
Purchases of businesses	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$32.00M	USD	Annual
Purchases of businesses	`PaymentsToAcquireBusinessesNetOfCashAcquired`	-	USD	Annual
Net change in policy loans	`PaymentsForProceedsFromPolicyLoans`	$37.00M	USD	Annual
Net change in policy loans	`PaymentsForProceedsFromPolicyLoans`	$-5.00M	USD	Annual
Net change in policy loans	`PaymentsForProceedsFromPolicyLoans`	$-250.00M	USD	Annual
Net change in short-term investments	`PaymentsForProceedsFromShortTermInvestments`	$341.00M	USD	Annual
Net change in short-term investments	`PaymentsForProceedsFromShortTermInvestments`	$-870.00M	USD	Annual
Net change in short-term investments	`PaymentsForProceedsFromShortTermInvestments`	$-152.00M	USD	Annual
Net change in other invested assets	`NetChangeInOtherInvestedAssets`	$-340.00M	USD	Annual
Net change in other invested assets	`NetChangeInOtherInvestedAssets`	$176.00M	USD	Annual
Net change in other invested assets	`NetChangeInOtherInvestedAssets`	$567.00M	USD	Annual
Other, net	`PaymentsForProceedsFromOtherInvestingActivities`	$32.00M	USD	Annual
Other, net	`PaymentsForProceedsFromOtherInvestingActivities`	$131.00M	USD	Annual
Other, net	`PaymentsForProceedsFromOtherInvestingActivities`	$-139.00M	USD	Annual
Net cash provided by (used in) investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-17.59B	USD	Annual
Net cash provided by (used in) investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-5.63B	USD	Annual
Net cash provided by (used in) investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-18.57B	USD	Annual
Policyholder account balances: Deposits	`ProceedsFromAnnuitiesAndInvestmentCertificates`	$93.50B	USD	Annual
Policyholder account balances: Deposits	`ProceedsFromAnnuitiesAndInvestmentCertificates`	$92.12B	USD	Annual
Policyholder account balances: Deposits	`ProceedsFromAnnuitiesAndInvestmentCertificates`	$92.33B	USD	Annual
Policyholder account balances: Withdrawals	`RepaymentsOfAnnuitiesAndInvestmentCertificates`	$88.06B	USD	Annual
Policyholder account balances: Withdrawals	`RepaymentsOfAnnuitiesAndInvestmentCertificates`	$85.60B	USD	Annual
Policyholder account balances: Withdrawals	`RepaymentsOfAnnuitiesAndInvestmentCertificates`	$85.25B	USD	Annual
Net change in payables for collateral under securities loaned and other transactions	`NetChangeInPayablesForCollateralUnderSecuritiesLoanedAndOtherTransactions`	$3.54B	USD	Annual
Net change in payables for collateral under securities loaned and other transactions	`NetChangeInPayablesForCollateralUnderSecuritiesLoanedAndOtherTransactions`	$2.02B	USD	Annual
Net change in payables for collateral under securities loaned and other transactions	`NetChangeInPayablesForCollateralUnderSecuritiesLoanedAndOtherTransactions`	$-821.00M	USD	Annual
Cash received for other transactions with tenors greater than three months	`Cashreceivedforothertransactionswithtenorsgreaterthanthreemonths`	$150.00M	USD	Annual
Cash received for other transactions with tenors greater than three months	`Cashreceivedforothertransactionswithtenorsgreaterthanthreemonths`	$200.00M	USD	Annual
Cash received for other transactions with tenors greater than three months	`Cashreceivedforothertransactionswithtenorsgreaterthanthreemonths`	$125.00M	USD	Annual
Cash paid for other transactions with tenors greater than three months	`Cashpaidforothertransactionswithtenorsgreaterthanthreemonths`	-	USD	Annual
Cash paid for other transactions with tenors greater than three months	`Cashpaidforothertransactionswithtenorsgreaterthanthreemonths`	$175.00M	USD	Annual
Cash paid for other transactions with tenors greater than three months	`Cashpaidforothertransactionswithtenorsgreaterthanthreemonths`	$200.00M	USD	Annual
Long-term debt issued	`ProceedsFromIssuanceOfLongTermDebt`	$1.12B	USD	Annual
Long-term debt issued	`ProceedsFromIssuanceOfLongTermDebt`	$24.00M	USD	Annual
Long-term debt issued	`ProceedsFromIssuanceOfLongTermDebt`	$1.38B	USD	Annual
Long-term debt repaid	`RepaymentsOfOtherLongTermDebt`	$906.00M	USD	Annual
Long-term debt repaid	`RepaymentsOfOtherLongTermDebt`	$1.87B	USD	Annual
Long-term debt repaid	`RepaymentsOfOtherLongTermDebt`	$99.00M	USD	Annual
Collateral financing arrangement repaid	`RepaymentsOfSecuredDebt`	$61.00M	USD	Annual
Collateral financing arrangement repaid	`RepaymentsOfSecuredDebt`	$67.00M	USD	Annual
Collateral financing arrangement repaid	`RepaymentsOfSecuredDebt`	$148.00M	USD	Annual
Financing element on certain derivative instruments and other derivative related transactions, net	`PaymentsForProceedsFromDerivativeInstrumentFinancingActivities`	$-144.00M	USD	Annual
Financing element on certain derivative instruments and other derivative related transactions, net	`PaymentsForProceedsFromDerivativeInstrumentFinancingActivities`	$46.00M	USD	Annual
Financing element on certain derivative instruments and other derivative related transactions, net	`PaymentsForProceedsFromDerivativeInstrumentFinancingActivities`	$126.00M	USD	Annual
Treasury stock acquired in connection with share repurchases	`PaymentsForRepurchaseOfCommonStock`	$3.99B	USD	Annual
Treasury stock acquired in connection with share repurchases	`PaymentsForRepurchaseOfCommonStock`	$2.29B	USD	Annual
Treasury stock acquired in connection with share repurchases	`PaymentsForRepurchaseOfCommonStock`	$1.15B	USD	Annual
Preferred stock issued, net of issuance costs	`ProceedsFromIssuanceOfPreferredStockAndPreferenceStock`	-	USD	Annual
Preferred stock issued, net of issuance costs	`ProceedsFromIssuanceOfPreferredStockAndPreferenceStock`	$1.96B	USD	Annual
Preferred stock issued, net of issuance costs	`ProceedsFromIssuanceOfPreferredStockAndPreferenceStock`	$1.27B	USD	Annual
Redemption of preferred stock	`PaymentsForRepurchaseOfPreferredStockAndPreferenceStock`	$989.00M	USD	Annual
Redemption of preferred stock	`PaymentsForRepurchaseOfPreferredStockAndPreferenceStock`	-	USD	Annual
Redemption of preferred stock	`PaymentsForRepurchaseOfPreferredStockAndPreferenceStock`	-	USD	Annual
Preferred stock redemption premium	`Met_PreferredStockRedemptionPremiumCashPaid`	$-14.00M	USD	Annual
Preferred stock redemption premium	`Met_PreferredStockRedemptionPremiumCashPaid`	-	USD	Annual
Preferred stock redemption premium	`Met_PreferredStockRedemptionPremiumCashPaid`	-	USD	Annual
Dividends on preferred stock	`PaymentsOfDividendsPreferredStockAndPreferenceStock`	$178.00M	USD	Annual
Dividends on preferred stock	`PaymentsOfDividendsPreferredStockAndPreferenceStock`	$141.00M	USD	Annual
Dividends on preferred stock	`PaymentsOfDividendsPreferredStockAndPreferenceStock`	$202.00M	USD	Annual
Dividends on common stock	`PaymentsOfDividendsCommonStock`	$1.64B	USD	Annual
Dividends on common stock	`PaymentsOfDividendsCommonStock`	$1.66B	USD	Annual
Dividends on common stock	`PaymentsOfDividendsCommonStock`	$1.68B	USD	Annual
Other, net	`ProceedsFromPaymentsForOtherFinancingActivities`	$-77.00M	USD	Annual
Other, net	`ProceedsFromPaymentsForOtherFinancingActivities`	$191.00M	USD	Annual
Other, net	`ProceedsFromPaymentsForOtherFinancingActivities`	$-145.00M	USD	Annual
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$10.73B	USD	Annual
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$4.57B	USD	Annual
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-2.80B	USD	Annual
Effect of change in foreign currency exchange rates on cash and cash equivalents balances	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations`	$-183.00M	USD	Annual
Effect of change in foreign currency exchange rates on cash and cash equivalents balances	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations`	$9.00M	USD	Annual
Effect of change in foreign currency exchange rates on cash and cash equivalents balances	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations`	$163.00M	USD	Annual
Change in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$777.00M	USD	Annual
Change in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$3.96B	USD	Annual
Change in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$3.12B	USD	Annual
Cash and cash equivalents, from continuing operations, beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$16.60B	USD	Point-in-time
Cash and cash equivalents, from continuing operations, beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$12.70B	USD	Point-in-time
Cash and cash equivalents, from continuing operations, beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$19.80B	USD	Point-in-time
Cash and cash equivalents, from continuing operations, beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$15.82B	USD	Point-in-time
Cash and cash equivalents, including subsidiary held-for-sale, end of year	`CashAndCashEquivalentsIncludingSubsidiaryHeldForSaleEndOfYear`	$15.82B	USD	Point-in-time
Cash and cash equivalents, including subsidiary held-for-sale, end of year	`CashAndCashEquivalentsIncludingSubsidiaryHeldForSaleEndOfYear`	$16.60B	USD	Point-in-time
Cash and cash equivalents, including subsidiary held-for-sale, end of year	`CashAndCashEquivalentsIncludingSubsidiaryHeldForSaleEndOfYear`	$20.56B	USD	Point-in-time
Cash and cash equivalents, subsidiary held-for-sale, end of year	`DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents`	-	USD	Point-in-time
Cash and cash equivalents, subsidiary held-for-sale, end of year	`DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents`	-	USD	Point-in-time
Cash and cash equivalents, subsidiary held-for-sale, end of year	`DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents`	$765.00M	USD	Point-in-time
Cash and cash equivalents, end of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$15.82B	USD	Point-in-time
Cash and cash equivalents, end of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$19.80B	USD	Point-in-time
Cash and cash equivalents, end of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$16.60B	USD	Point-in-time
Cash and cash equivalents, end of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$12.70B	USD	Point-in-time
Net cash paid for Interest	`InterestPaidNet`	$964.00M	USD	Annual
Net cash paid for Interest	`InterestPaidNet`	$1.13B	USD	Annual
Net cash paid for Interest	`InterestPaidNet`	$891.00M	USD	Annual
Net cash paid (received) for Income tax	`IncomeTaxesPaidNet`	$787.00M	USD	Annual
Net cash paid (received) for Income tax	`IncomeTaxesPaidNet`	$1.10B	USD	Annual
Net cash paid (received) for Income tax	`IncomeTaxesPaidNet`	$1.94B	USD	Annual
Business acquisitions: Assets	`BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets`	$2.19B	USD	Point-in-time
Business acquisitions: Assets	`BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets`	-	USD	Point-in-time
Business acquisitions: Assets	`BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets`	-	USD	Point-in-time
Business acquisitions: Liabilities	`BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities`	-	USD	Point-in-time
Business acquisitions: Liabilities	`BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities`	$315.00M	USD	Point-in-time
Business acquisitions: Liabilities	`BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities`	-	USD	Point-in-time
Business acquisitions: cash paid, excluding transaction costs	`Met_SupplementalCashPaidForBusinessAcquisition`	-	USD	Annual
Business acquisitions: cash paid, excluding transaction costs	`Met_SupplementalCashPaidForBusinessAcquisition`	-	USD	Annual
Business acquisitions: cash paid, excluding transaction costs	`Met_SupplementalCashPaidForBusinessAcquisition`	$1.88B	USD	Annual
Assets held-for-sale	`AssetsOfDisposalGroupIncludingDiscontinuedOperation`	-	USD	Point-in-time
Assets held-for-sale	`AssetsOfDisposalGroupIncludingDiscontinuedOperation`	-	USD	Point-in-time
Assets held-for-sale	`AssetsOfDisposalGroupIncludingDiscontinuedOperation`	$7.42B	USD	Point-in-time
Liabilities held-for-sale	`LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation`	-	USD	Point-in-time
Liabilities held-for-sale	`LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation`	-	USD	Point-in-time
Liabilities held-for-sale	`LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation`	$4.65B	USD	Point-in-time
Net assets held-for-sale	`NetAssetsHeldForSale`	-	USD	Point-in-time
Net assets held-for-sale	`NetAssetsHeldForSale`	$2.77B	USD	Point-in-time
Net assets held-for-sale	`NetAssetsHeldForSale`	-	USD	Point-in-time
Fixed maturity securities available-for-sale received in connection with pension risk transfer transactions	`NoncashOrPartNoncashAcquisitionInvestmentsAcquired1`	$637.00M	USD	Annual
Fixed maturity securities available-for-sale received in connection with pension risk transfer transactions	`NoncashOrPartNoncashAcquisitionInvestmentsAcquired1`	$2.04B	USD	Annual
Fixed maturity securities available-for-sale received in connection with pension risk transfer transactions	`NoncashOrPartNoncashAcquisitionInvestmentsAcquired1`	$3.02B	USD	Annual
Operating lease liability associated with the recognition of right-of-use assets	`RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability`	-	USD	Annual
Operating lease liability associated with the recognition of right-of-use assets	`RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability`	$70.00M	USD	Annual
Operating lease liability associated with the recognition of right-of-use assets	`RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability`	$341.00M	USD	Annual
Reduction of long-term debt	`NotesReduction1`	$944.00M	USD	Annual
Reduction of long-term debt	`NotesReduction1`	-	USD	Annual
Reduction of long-term debt	`NotesReduction1`	-	USD	Annual
Reduction of fair value option securities	`NonCashReductionOfFairValueOptionSecurities`	$1.03B	USD	Annual
Reduction of fair value option securities	`NonCashReductionOfFairValueOptionSecurities`	-	USD	Annual
Reduction of fair value option securities	`NonCashReductionOfFairValueOptionSecurities`	-	USD	Annual
Reclassification of certain equity securities to other invested assets	`Reclassificationofcertainequitysecuritiestootherinvestedassets`	-	USD	Annual
Reclassification of certain equity securities to other invested assets	`Reclassificationofcertainequitysecuritiestootherinvestedassets`	-	USD	Annual
Reclassification of certain equity securities to other invested assets	`Reclassificationofcertainequitysecuritiestootherinvestedassets`	$792.00M	USD	Annual

Stockholders Equity 59 line items

Line Item	Tag	Value	Unit	Period
Beginning Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$58.87B	USD	Point-in-time
Beginning Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$74.82B	USD	Point-in-time
Beginning Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$66.38B	USD	Point-in-time
Beginning Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$52.96B	USD	Point-in-time
Redemption of preferred stock	`StockRedeemedOrCalledDuringPeriodValue`	$989.00M	USD	Annual
Preferred stock redemption premium	`PreferredStockRedemptionPremium`	-	USD	1 Quarter
Preferred stock redemption premium	`PreferredStockRedemptionPremium`	-	USD	1 Quarter
Preferred stock redemption premium	`PreferredStockRedemptionPremium`	-	USD	1 Quarter
Preferred stock redemption premium	`PreferredStockRedemptionPremium`	$14.00M	USD	Annual
Preferred stock redemption premium	`PreferredStockRedemptionPremium`	-	USD	Annual
Preferred stock redemption premium	`PreferredStockRedemptionPremium`	-	USD	Annual
Preferred stock redemption premium	`PreferredStockRedemptionPremium`	$14.00M	USD	1 Quarter
Preferred stock issuance	`ProceedsFromIssuanceOfPreferredStockAndPreferenceStock`	$1.27B	USD	Annual
Preferred stock issuance	`ProceedsFromIssuanceOfPreferredStockAndPreferenceStock`	-	USD	Annual
Preferred stock issuance	`ProceedsFromIssuanceOfPreferredStockAndPreferenceStock`	$1.96B	USD	Annual
Treasury stock acquired in connection with share repurchases	`TreasuryStockValueAcquiredCostMethod`	$2.29B	USD	Annual
Treasury stock acquired in connection with share repurchases	`TreasuryStockValueAcquiredCostMethod`	$3.99B	USD	Annual
Treasury stock acquired in connection with share repurchases	`TreasuryStockValueAcquiredCostMethod`	$1.15B	USD	Annual
Stock-based compensation	`StockIssuedDuringPeriodValueShareBasedCompensation`	$206.00M	USD	Annual
Stock-based compensation	`StockIssuedDuringPeriodValueShareBasedCompensation`	$160.00M	USD	Annual
Stock-based compensation	`StockIssuedDuringPeriodValueShareBasedCompensation`	$89.00M	USD	Annual
Dividends on preferred stock	`DividendsPreferredStock`	$77.00M	USD	1 Quarter
Dividends on preferred stock	`DividendsPreferredStock`	$59.00M	USD	1 Quarter
Dividends on preferred stock	`DividendsPreferredStock`	$57.00M	USD	1 Quarter
Dividends on preferred stock	`DividendsPreferredStock`	$202.00M	USD	Annual
Dividends on preferred stock	`DividendsPreferredStock`	$57.00M	USD	1 Quarter
Dividends on preferred stock	`DividendsPreferredStock`	$34.00M	USD	1 Quarter
Dividends on preferred stock	`DividendsPreferredStock`	$178.00M	USD	Annual
Dividends on preferred stock	`DividendsPreferredStock`	$32.00M	USD	1 Quarter
Dividends on preferred stock	`DividendsPreferredStock`	$32.00M	USD	1 Quarter
Dividends on preferred stock	`DividendsPreferredStock`	$141.00M	USD	Annual
Dividends on preferred stock	`DividendsPreferredStock`	$32.00M	USD	1 Quarter
Dividend Per Share	`CommonStockDividendsPerShareCashPaid`	$1.82	USD	Annual
Dividend Per Share	`CommonStockDividendsPerShareCashPaid`	$1.66	USD	Annual
Dividend Per Share	`CommonStockDividendsPerShareCashPaid`	$1.74	USD	Annual
Dividends on common stock	`DividendsCommonStockCash`	$1.64B	USD	Annual
Dividends on common stock	`DividendsCommonStockCash`	$1.68B	USD	Annual
Dividends on common stock	`DividendsCommonStockCash`	$1.66B	USD	Annual
Change in equity of noncontrolling interests	`MinorityInterestPeriodIncreaseDecrease`	$5.00M	USD	Annual
Change in equity of noncontrolling interests	`MinorityInterestPeriodIncreaseDecrease`	$5.00M	USD	Annual
Change in equity of noncontrolling interests	`MinorityInterestPeriodIncreaseDecrease`	$16.00M	USD	Annual
Net income (loss)	`ProfitLoss`	$150.00M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$4.40B	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$588.00M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$158.00M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$5.13B	USD	Annual
Net income (loss)	`ProfitLoss`	$2.19B	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$1.75B	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$5.91B	USD	Annual
Net income (loss)	`ProfitLoss`	$5.42B	USD	Annual
Net income (loss)	`ProfitLoss`	$709.00M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$1.39B	USD	1 Quarter
Other comprehensive income (loss), net of income tax	`OtherComprehensiveIncomeLossNetOfTax`	$11.31B	USD	Annual
Other comprehensive income (loss), net of income tax	`OtherComprehensiveIncomeLossNetOfTax`	$-6.62B	USD	Annual
Other comprehensive income (loss), net of income tax	`OtherComprehensiveIncomeLossNetOfTax`	$5.03B	USD	Annual
Ending Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$66.38B	USD	Point-in-time
Ending Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$58.87B	USD	Point-in-time
Ending Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$74.82B	USD	Point-in-time
Ending Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$52.96B	USD	Point-in-time

Comprehensive Income 41 line items

Line Item	Tag	Value	Unit	Period
Net income (loss)	`ProfitLoss`	$709.00M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$150.00M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$588.00M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$158.00M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$5.13B	USD	Annual
Net income (loss)	`ProfitLoss`	$4.40B	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$1.75B	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$5.91B	USD	Annual
Net income (loss)	`ProfitLoss`	$5.42B	USD	Annual
Net income (loss)	`ProfitLoss`	$2.19B	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$1.39B	USD	1 Quarter
Unrealized investment gains (losses), net of related offsets	`OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax`	$5.20B	USD	Annual
Unrealized investment gains (losses), net of related offsets	`OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax`	$14.59B	USD	Annual
Unrealized investment gains (losses), net of related offsets	`OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax`	$-8.72B	USD	Annual
Unrealized gains (losses) on derivatives	`OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesBeforeTax`	$674.00M	USD	Annual
Unrealized gains (losses) on derivatives	`OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesBeforeTax`	$-286.00M	USD	Annual
Unrealized gains (losses) on derivatives	`OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesBeforeTax`	$60.00M	USD	Annual
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax`	$-587.00M	USD	Annual
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax`	$-42.00M	USD	Annual
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax`	$1.17B	USD	Annual
Defined benefit plans adjustment	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax`	$-181.00M	USD	Annual
Defined benefit plans adjustment	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax`	$-30.00M	USD	Annual
Defined benefit plans adjustment	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax`	$-263.00M	USD	Annual
Other comprehensive income (loss), before income tax	`OtherComprehensiveIncomeLossBeforeTax`	$-8.37B	USD	Annual
Other comprehensive income (loss), before income tax	`OtherComprehensiveIncomeLossBeforeTax`	$6.26B	USD	Annual
Other comprehensive income (loss), before income tax	`OtherComprehensiveIncomeLossBeforeTax`	$14.64B	USD	Annual
Income tax (expense) benefit related to items of other comprehensive income (loss)	`OtherComprehensiveIncomeLossTax`	$-1.75B	USD	Annual
Income tax (expense) benefit related to items of other comprehensive income (loss)	`OtherComprehensiveIncomeLossTax`	$1.24B	USD	Annual
Income tax (expense) benefit related to items of other comprehensive income (loss)	`OtherComprehensiveIncomeLossTax`	$3.32B	USD	Annual
Other comprehensive income (loss), net of income tax	`OtherComprehensiveIncomeLossNetOfTax`	$5.03B	USD	Annual
Other comprehensive income (loss), net of income tax	`OtherComprehensiveIncomeLossNetOfTax`	$11.31B	USD	Annual
Other comprehensive income (loss), net of income tax	`OtherComprehensiveIncomeLossNetOfTax`	$-6.62B	USD	Annual
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-1.49B	USD	Annual
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$17.22B	USD	Annual
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$10.44B	USD	Annual
Less: Comprehensive income (loss) attributable to noncontrolling interest, net of income tax	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$16.00M	USD	Annual
Less: Comprehensive income (loss) attributable to noncontrolling interest, net of income tax	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$7.00M	USD	Annual
Less: Comprehensive income (loss) attributable to noncontrolling interest, net of income tax	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$16.00M	USD	Annual
Comprehensive income (loss) attributable to MetLife, Inc.	`ComprehensiveIncomeNetOfTax`	$10.43B	USD	Annual
Comprehensive income (loss) attributable to MetLife, Inc.	`ComprehensiveIncomeNetOfTax`	$17.21B	USD	Annual
Comprehensive income (loss) attributable to MetLife, Inc.	`ComprehensiveIncomeNetOfTax`	$-1.49B	USD	Annual

Data is extracted from SEC EDGAR XBRL filings. Values shown are as reported in the filing.