v3.26.3
INVESTMENTS - Schedule of Components of Net Realized Capital Gains (Losses) (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Debt Securities, Available-for-Sale [Line Items]        
Total net realized gains (losses) from dispositions $ (10) $ (36) $ (28) $ (49)
Credit allowance on fixed maturity securities (51) (12) (49) (14)
Gains (losses) from fair value adjustment on public equities (8) 0 (9) 3
Total net gains (losses) on investments (68) (47) (86) (59)
Fixed maturities        
Debt Securities, Available-for-Sale [Line Items]        
Net realized gains (losses) from dispositions (9) (36) (27) (48)
Equity securities        
Debt Securities, Available-for-Sale [Line Items]        
Net realized gains (losses) from dispositions 0 0 0 (1)
Short-term investments and cash        
Debt Securities, Available-for-Sale [Line Items]        
Net realized gains (losses) from dispositions $ (1) $ 0 $ (1) $ 0