v3.26.1
BORROWINGS - Schedule of Short-Term Borrowings (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Debt Disclosure [Abstract]    
Securities sold under repurchase agreements $ 103 $ 131
Federal Home Loan Bank advances 1,000 1,055
Federal funds purchased 920 705
Subordinated notes 134 126
Total short-term borrowings $ 2,157 $ 2,017