v3.25.2
OTHER BORROWINGS - Narrative (Details) - USD ($)
Jul. 31, 2025
Jun. 30, 2025
Subordinated Borrowing [Line Items]    
Federal home loan bank, advances, general debt obligations, amount of available, unused funds   $ 3,360,000,000
Credit arrangements for federal funds purchase   92,000,000.0
Pledged assets separately reported, loans pledged for federal reserve bank, at fair value   2,770,000,000
Loans pledged at federal reserve discount window available for borrowing   $ 2,240,000,000
Subordinated Debt | Subsequent Event    
Subordinated Borrowing [Line Items]    
Debt instrument, interest rate, stated percentage 5.875%  
Debt instrument, face amount $ 74,000,000  
Debt instrument, interest rate, effective percentage 8.22%