Investments - Available-for-sale Impairment Losses Recognized in Earnings (Details) - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Mar. 31, 2025 |
Mar. 31, 2024 |
|
| Fixed maturity securities available-for-sale: | ||
| Impairment losses recognized in earnings | $ 7 | $ 14 |
| Mortgage Receivable | ||
| Fixed maturity securities available-for-sale: | ||
| Gain (loss) on mortgage loans due to changes in expected credit losses | 0 | 0 |
| Corporate and other bonds | ||
| Fixed maturity securities available-for-sale: | ||
| Impairment losses recognized in earnings | 7 | 9 |
| Asset-backed | ||
| Fixed maturity securities available-for-sale: | ||
| Impairment losses recognized in earnings | $ 5 | |