v3.26.3
FAIR VALUE DISCLOSURES - Narrative (Details) - USD ($)
$ in Millions
9 Months Ended 12 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Fair Value Inputs Assets Quantitative Information [Line Items]      
Change in purchased market risk benefit asset fair value $ 12   $ 42
AFS fixed maturities transferred from Level 3 to Level 2 589 $ 614  
AFS fixed maturities transferred from Level 2 to Level 3 $ 736 $ 63  
Percentage of total equity representing AFS fixed maturities transferred (732.00%) 42.20%  
Nonrecurring | Level 3      
Fair Value Inputs Assets Quantitative Information [Line Items]      
Investments, fair value $ 5,300   $ 3,500