XML 125 R66.htm IDEA: XBRL DOCUMENT v3.25.3
OTHER COMPREHENSIVE INCOME (LOSS) - Schedule of Amount Reclassified from Accumulated Other Comprehensive Income (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Net gains (losses) on investments $ (47) $ (27) $ (59) $ (50)
Income tax expense (benefit) (14) (68) (187) (275)
Other underwriting expenses (258) (236) (750) (694)
Net income (loss) 255 509 1,145 1,966
URA(D) of securities | Reclassification From Accumulated Other Comprehensive Income        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Net gains (losses) on investments 47 33 62 49
Income tax expense (benefit) (10) (3) (14) (6)
Net income (loss) 37 30 48 44
Benefit plan net gain (loss) | Reclassification From Accumulated Other Comprehensive Income        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Income tax expense (benefit) 0 0 2 (6)
Other underwriting expenses 0 (1) (10) 31
Net income (loss) $ 0 $ 0 $ (8) $ 24