v3.25.2
Investments - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Derivative [Line Items]          
Net investment income $ 714 $ 639 $ 1,322 $ 1,308  
Without Hedge Designation | Credit default swap index - purchased          
Derivative [Line Items]          
Notional amount     $ 2,000
Derivative liability         $ 1
Net investment income $ 16   $ 19