Investments - Available-for-sale Impairment Losses (Gains) Recognized in Earnings (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
|
| Fixed maturity securities available-for-sale: | ||||
| Impairment losses recognized in earnings | $ 4 | $ 6 | $ 18 | $ 22 |
| Mortgage Loans | ||||
| Fixed maturity securities available-for-sale: | ||||
| Losses recognized on mortgage loans due to changes in expected credit losses | 0 | 5 | 0 | 5 |
| Corporate and other bonds | ||||
| Fixed maturity securities available-for-sale: | ||||
| Impairment losses recognized in earnings | 3 | 4 | 11 | 15 |
| Asset-backed | ||||
| Fixed maturity securities available-for-sale: | ||||
| Impairment losses recognized in earnings | $ 1 | $ 2 | $ 7 | $ 7 |