v3.25.2
Investments - Schedule of sources of net investment income (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Net Investment Income [Line Items]        
Investment income $ 190 $ 193 $ 370 $ 397
Equity in earnings (losses) of partnerships and similar investments, net (6) 14 7 39
Investment expenses (6) (5) (13) (11)
Net investment income 184 188 357 386
Fixed maturities | Net investment income        
Net Investment Income [Line Items]        
Investment income 141 136 281 270
Fixed maturities | Net investment income        
Net Investment Income [Line Items]        
Change in fair value of fixed maturity securities 7 0 2 0
Equity securities | Net investment income        
Net Investment Income [Line Items]        
Dividends 15 7 21 14
Change in fair value of equity securities 4 9 4 25
Cash and cash equivalents        
Net Investment Income [Line Items]        
Investment income 10 12 23 24
Other        
Net Investment Income [Line Items]        
Investment income $ 19 $ 15 $ 32 $ 25