v3.25.2
Investments (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]        
Gross investment income $ 685 $ 639 $ 1,311 $ 1,269
Investment expense (23) (21) (45) (42)
Net investment income 662 618 1,266 1,227
Fixed maturity securities        
Net Investment Income [Line Items]        
Gross investment income 536 511 1,058 1,013
Equity securities        
Net Investment Income [Line Items]        
Gross investment income 27 13 33 35
Limited partnership investments        
Net Investment Income [Line Items]        
Gross investment income 81 74 137 128
Mortgage loans        
Net Investment Income [Line Items]        
Gross investment income 16 14 32 29
Short-term investments        
Net Investment Income [Line Items]        
Gross investment income 14 20 33 48
Trading portfolio        
Net Investment Income [Line Items]        
Gross investment income 3 0 4 1
Other        
Net Investment Income [Line Items]        
Gross investment income 8 7 14 15
Common Stock        
Net Investment Income [Line Items]        
Net investment income (loss) recognized due to the change in fair value of common stock held as of June 30, 2025 and 2024 $ 15 $ 2 $ 15 $ 11