XML 153 R131.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Investments (Credit Quality of Agricultural and Residential Mortgage Loans) (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Mortgage Loans, Gross | $ 93,227 | $ 84,290
Mortgage Loans in Process of Foreclosure, Amount | 140 | 146
Residential Mortgage Loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 772 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 2,554 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 1,523 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 352 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 971 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 6,924 |
Financing Receivable, Revolving | 0 |
Mortgage Loans, Gross | $ 13,096 | 12,482
Loans Receivable Residential Mortgage Percentage | 100.00% |
Residential Mortgage Loans | Performing |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 767 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 2,508 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 1,501 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 336 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 927 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 6,639 |
Financing Receivable, Revolving | 0 |
Mortgage Loans, Gross | $ 12,678 |
Loans Receivable Residential Mortgage Percentage | 96.80% |
Residential Mortgage Loans | Nonperforming |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 5 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 46 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 22 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 16 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 44 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 285 |
Financing Receivable, Revolving | 0 |
Mortgage Loans, Gross | $ 418 |
Loans Receivable Residential Mortgage Percentage | 3.20% |
Agricultural Mortgage Loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 1,157 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 2,892 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 2,951 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 2,890 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 1,885 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 6,509 |
Financing Receivable, Revolving | 1,521 |
Mortgage Loans, Gross | $ 19,805 | $ 19,306
Loans Receivable Agricultural Mortgage Percentage | 100.00% |
Agricultural Mortgage Loans | Less than 65% |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 1,123 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 2,796 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 2,650 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 2,725 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 1,728 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 5,953 |
Financing Receivable, Revolving | 1,394 |
Mortgage Loans, Gross | $ 18,369 |
Loans Receivable Agricultural Mortgage Percentage | 92.80% |
Agricultural Mortgage Loans | 65% to 75% |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 30 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 96 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 301 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 160 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 24 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 542 |
Financing Receivable, Revolving | 121 |
Mortgage Loans, Gross | $ 1,274 |
Loans Receivable Agricultural Mortgage Percentage | 6.40% |
Agricultural Mortgage Loans | 76% to 80% |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 0 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 0 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 0 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 0 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 0 |
Financing Receivable, Revolving | 0 |
Mortgage Loans, Gross | $ 0 |
Loans Receivable Agricultural Mortgage Percentage | 0.00% |
Agricultural Mortgage Loans | Greater than 80% |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 4 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 0 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 5 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 133 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 14 |
Financing Receivable, Revolving | 6 |
Mortgage Loans, Gross | $ 162 |
Loans Receivable Agricultural Mortgage Percentage | 0.80% |

X
- Definition Reflects the percentage of the gross carrying amount of unpaid loans and leases issued to consumers to the total for all consumer loans and leases. + References No definition available. + Details
Name: | met_LoansAndLeasesReceivableConsumerMortgagePercentage
Namespace Prefix: | met_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Reflects the percentage of the gross carrying amount of unpaid loans issued to agricultural businesses to provide financing on existing land or a building, which, pursuant to terms of the underlying debt instrument, are secured at a minimum but possibly exclusively by that real property to the total for all commercial agricultural mortgage loans. Mortgages represent permanent financing, and are issued to replace previously existing mortgages or pay off acquisition, development and construction loans, or to provide cash to the borrower. + References No definition available. + Details
Name: | met_LoansReceivableCommercialAgriculturalMortgagePercentage
Namespace Prefix: | met_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amortized cost of financing receivable originated more than five years prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost of financing receivable originated four years prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost of financing receivable originated in current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableOriginatedInCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost of financing receivable originated in fiscal year prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost of financing receivable originated three years prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost of financing receivable originated two years prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-5 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amortized cost of financing receivable that can be withdrawn, repaid, and redrawn. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableRevolving
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Recorded investment of consumer mortgage loan receivables secured by residential real estate properties for which formal foreclosure proceedings are in process. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 35 -SubTopic 10 -Topic 310 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-35 + Details
Name: | us-gaap_MortgageLoansInProcessOfForeclosureAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost, before allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 80 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-80 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479344/326-20-45-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)(b)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (1) -Publisher SEC Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (2) -Publisher SEC Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef -Name Regulation S-K (SK) -Number 229 -Section 1404 -Paragraph (a) -Publisher SEC Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 14 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-14 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 7A -SubTopic 10 -Topic 310 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-7A Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-5 + Details
Name: | us-gaap_NotesReceivableGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ResidentialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_PerformingFinancingReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_NonperformingFinancingReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_EquitySecuritiesByIndustryAxis=us-gaap_AgriculturalSectorMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LoanToValueAxis=met_MortgageLoansByCreditQualityIndicatorWithLoanToValueRatioOfLessThanSixtyFivePercentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LoanToValueAxis=met_MortgageLoansByCreditQualityIndicatorWithLoanToValueRatioBetweenSixtyFivePercentToSeventyFivePercentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LoanToValueAxis=met_MortgageLoansByCreditQualityIndicatorWithLoanToValueRatioBetweenSeventySixPercentToEightyPercentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LoanToValueAxis=us-gaap_Ltv80To100PercentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |