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Derivatives (Embedded Derivatives) (Details) - USD ($) $ in Millions | Sep. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Derivatives, Fair Value [Line Items] |  |
Total | $ (119) | $ (93)
Funds withheld and guarantees on reinsurance | Other liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total | (53) | (70)
Fixed annuities with equity indexed returns [Member] | Policyholder account balances |  |
Derivatives, Fair Value [Line Items] |  |
Total | $ (172) | $ (163)

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