v3.26.1
INVESTMENTS - Schedule of Roll Forward of Allowance for Credit Losses of Fixed Maturities, Held to Maturity (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Roll Forward]    
Beginning balance $ (6) $ (8)
Credit losses on securities where credit losses were not previously recorded (2) 0
Increases in allowance on previously impaired securities 0 0
Decreases in allowance on previously impaired securities 0 0
Reduction in allowance due to disposals 0 0
Balance, end of period (8) (8)
Corporate securities    
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Roll Forward]    
Beginning balance (2) (2)
Credit losses on securities where credit losses were not previously recorded 0 0
Increases in allowance on previously impaired securities 0 0
Decreases in allowance on previously impaired securities 0 0
Reduction in allowance due to disposals 0 0
Balance, end of period (2) (2)
Asset-backed securities    
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Roll Forward]    
Beginning balance (3) (4)
Credit losses on securities where credit losses were not previously recorded (2) 0
Increases in allowance on previously impaired securities 0 0
Decreases in allowance on previously impaired securities 0 0
Reduction in allowance due to disposals 0 0
Balance, end of period (5) (4)
Foreign corporate securities    
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Roll Forward]    
Beginning balance (1) (1)
Credit losses on securities where credit losses were not previously recorded 0 0
Increases in allowance on previously impaired securities 0 0
Decreases in allowance on previously impaired securities 0 0
Reduction in allowance due to disposals 0 0
Balance, end of period $ (1) $ (1)