v3.25.1
Borrowings - Narrative (Details) - USD ($)
$ in Millions
Mar. 31, 2025
Dec. 31, 2024
Debt Instrument [Line Items]    
Unused borrowing capacity   $ 3,550
Third Party Correspondent Bank    
Debt Instrument [Line Items]    
Line of credit, maximum borrowing capacity $ 6,360 $ 6,100
Securities and Loans Identified As Available For Collateral    
Debt Instrument [Line Items]    
Unused borrowing capacity $ 3,800