v3.26.1
DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Narrative) (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Derivative Instruments, Gain (Loss) [Line Items]    
Derivatives $ 392 $ 260
Total debt securities 10,383 10,353
U.S. Treasury, agencies, and corporations    
Derivative Instruments, Gain (Loss) [Line Items]    
Total debt securities 1,799 $ 1,500
Asset Pledged as Collateral | Securities Sold under Agreements to Repurchase    
Derivative Instruments, Gain (Loss) [Line Items]    
Cash 158  
Asset Pledged as Collateral | Securities Sold under Agreements to Repurchase | U.S. Treasury, agencies, and corporations    
Derivative Instruments, Gain (Loss) [Line Items]    
Total debt securities $ 200