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Lending Activities - Rollforward of the Changes in the Allowance for Credit Losses on Mortgage and Other Loans Receivable (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Dec. 31, 2024
Changes in the allowance for losses on Mortgage and other loans receivable |  |  |
Allowance, beginning of year | $ 37,800 |  |
Allowance, end of period | 37,791 |  |
Commercial mortgage loans |  |  |
Changes in the allowance for losses on Mortgage and other loans receivable |  |  |
Allowance, beginning of year | 163 | $ 138 |
Addition to (release of) allowance for loan losses | (8) | 12 |
Allowance, end of period | 155 | 150 |
Off-balance-sheet commitments | 8 | 6 | $ 8
Other Loans |  |  |
Changes in the allowance for losses on Mortgage and other loans receivable |  |  |
Allowance, beginning of year | 1 | 2 |
Addition to (release of) allowance for loan losses | (1) | 1 |
Allowance, end of period | 0 | 3 |
Excluding AIGFP Operating |  |  |
Changes in the allowance for losses on Mortgage and other loans receivable |  |  |
Allowance, beginning of year | 164 | 140 |
Addition to (release of) allowance for loan losses | (9) | 13 |
Allowance, end of period | $ 155 | $ 153 |

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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Definition Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease. + References Reference 1: 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 + Details
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- Definition Amount, excluding accrued interest, of credit loss expense (reversal of expense) on financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 + Details
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- Definition Amount of expected credit loss for credit exposure on off-balance-sheet commitment, including but not limited to, loan commitment, standby letter of credit, financial guarantee not accounted for as insurance. Excludes off-balance sheet credit exposure accounted for as insurance and instrument accounted for under derivatives and hedging. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 460 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482454/460-10-45-1 + Details
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