v3.25.2
Contracts Accounted for as Credit Derivatives - Net Change in Fair Value of Credit Derivatives Gains (Losses) (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]        
Realized gains (losses) and other settlements $ 0 $ 1 $ 105 $ 0
Net unrealized gains (losses) 1 5 0 16
Fair value gains (losses) on credit derivatives $ 1 $ 6 $ 105 $ 16