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Reinsurance (Effects of Reinsurance on Earnings) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Premiums: |  |  |
Direct Premiums | $ 45,153 | $ 43,359 | $ 47,618
Reinsurance assumed | 3,788 | 3,112 | 3,035
Reinsurance ceded | (3,996) | (2,188) | (2,143)
Net premiums | 44,945 | 44,283 | 48,510
Universal life and investment-type product policy fees: |  |  |
Direct universal life and investment-type product policy fees | 5,914 | 5,787 | 5,687
Reinsurance assumed | (3) | (19) | 32
Reinsurance ceded | (937) | (616) | (494)
Net universal life and investment product policy fees | 4,974 | 5,152 | 5,225
Ceded Policyholder Benefits and Claims Incurred Net And Policyholder Dividends | (4,548) | (2,469) | (2,405)
Ceded Policyholder Liability, Change in Fair Value, Gain (Loss) | (24) | 29 | 11
Ceded market risk benefits remeasurement (gains) losses | 6 | 5 | 8
Policyholder Benefits and Claims: |  |  |
Direct policyholder benefits and claims | 45,662 | 44,155 | 49,308
Reinsurance assumed | 3,614 | 2,904 | 2,604
Policyholder benefits and claims | 44,728 | 44,590 | 49,507
Policyholder Liability Remeasurement (Gains) Losses: |  |  |
Direct Policyholder Liability Remeasurement (Gains) Losses | (169) | (54) | 94
Assumed Policyholder Liability, Change in Fair Value, Gain (Loss) | (13) | (20) | 9
Policyholder liability remeasurement (gains) losses | 206 | 45 | (114)
Market Risk Benefit: |  |  |
Direct market risk benefits remeasurement (gains) losses | (992) | (785) | (3,636)
Assumed Market Risk Benefits Remeasurement (Gains) Losses | (123) | (214) | (46)
Net market risk benefits remeasurement (gains) losses | 1,109 | 994 | 3,674
Other expenses: |  |  |
Direct other expenses | 13,054 | 12,760 | 11,854
Reinsurance assumed | 202 | 235 | 268
Reinsurance ceded | 239 | 285 | 263
Total other expenses | $ 13,017 | $ 12,710 | $ 11,859

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