Fair Value Measurements - Gains or losses recorded related to fair value option (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
|
| Fair Value, Option, Quantitative Disclosures | |||
| Total gain (loss) | $ (197) | $ 937 | $ 251 |
| Total liabilities | |||
| Fair Value, Option, Quantitative Disclosures | |||
| Total gain (loss) | 20 | (172) | (111) |
| Policyholder contract deposits(b) | |||
| Fair Value, Option, Quantitative Disclosures | |||
| Total gain (loss) | 20 | 7 | (9) |
| Debt of consolidated investment entities | |||
| Fair Value, Option, Quantitative Disclosures | |||
| Total gain (loss) | 0 | (179) | (102) |
| Total assets | |||
| Fair Value, Option, Quantitative Disclosures | |||
| Total gain (loss) | (217) | 1,109 | 362 |
| Other bond securities | |||
| Fair Value, Option, Quantitative Disclosures | |||
| Total gain (loss) | (408) | 26 | 72 |
| Alternative investments | |||
| Fair Value, Option, Quantitative Disclosures | |||
| Total gain (loss) | 191 | 1,083 | $ 290 |
| Fair value option carrying amount | 6 | 5 | |
| Fair value option, aforementioned principal amount | $ 655 | $ 779 | |