XML 74 R63.htm IDEA: XBRL DOCUMENT v3.25.3
Available-for-sale Fixed Maturity Securities - Proceeds from Sales of Available-for-Sale Fixed Maturity Securities with Related Gross Realized Gains and Losses (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Investments, Debt and Equity Securities [Abstract]        
Proceeds from sales of available-for-sale fixed maturity securities $ 1,868 $ 1,071 $ 6,749 $ 3,484
Gross realized gains 46 2 56 6
Gross realized (losses) $ (6) $ (97) $ (68) $ (120)