v3.25.2
Income Taxes (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
Net Investment Income [Line Items]          
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent 21.00% 21.00% 21.00% 21.00%  
Effective tax rate 14.40% 15.00% 13.60% 7.10%  
Income Tax Expense (Benefit) $ 27 $ 41 $ 49 $ 40  
Unrealized gains (losses) on investments 128 (178) 472 (303)  
Accumulated other comprehensive income (loss) (2,067) (2,583) (2,067) (2,583) $ (2,462)
Accumulated other comprehensive income (loss) (2,067) $ (2,583) (2,067) $ (2,583) $ (2,462)
Fixed maturities          
Net Investment Income [Line Items]          
Accumulated other comprehensive income (loss) (2,000)   (2,000)    
Accumulated other comprehensive income (loss) $ (2,000)   $ (2,000)