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Separate Account Liabilities Balance Sheet (Details) - USD ($) $ in Millions | Jun. 30, 2025 | Dec. 31, 2024 | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | --- | --- | ---
Separate Account, Liability [Line Items] |  |  |  |
Separate account liabilities | $ 143,175 | $ 139,504 |  |
Latin America | Pension Plan |  |  |  |
Separate Account, Liability [Line Items] |  |  |  |
Separate account liabilities | 43,827 | 38,765 | $ 38,944 | $ 41,320
Stable Value and Risk Solutions | RIS |  |  |  |
Separate Account, Liability [Line Items] |  |  |  |
Separate account liabilities | 36,928 | 40,319 | 38,689 | 41,343
Annuities | RIS |  |  |  |
Separate Account, Liability [Line Items] |  |  |  |
Separate account liabilities | 10,967 | 11,001 | 11,246 | 11,659
Annuities | MetLife Holdings |  |  |  |
Separate Account, Liability [Line Items] |  |  |  |
Separate account liabilities | 27,188 | 27,829 | $ 28,843 | $ 29,224
Insurance, Other |  |  |  |
Separate Account, Liability [Line Items] |  |  |  |
Separate account liabilities | $ 24,265 | $ 21,590 |  |

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