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Separate Account Balances and Changes (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Separate Account, Liability [Roll Forward] |  |  |
Balance, beginning of period | $ 892 |  |
Balance, end of period | 925 | $ 892 |
Universal Life |  |  |
Separate Account, Liability [Roll Forward] |  |  |
Balance, beginning of period | 892 | 959 | $ 952
Interest credited before policy charges | 42 | 38 | 37
Change in unrealized gains and losses impacting separate account liabilities | 0 | (85) | (22)
Benefit payments | (10) | (15) | (6)
Other | 1 | (5) | (2)
Balance, end of period | 925 | 892 | 959
Cash surrender value | $ 917 | $ 890 | $ 870

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