v3.25.2
Loans and Allowances for Credit Losses, Modifications (Details) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Financing Receivable, Loan Modifications [Line Items]    
Financing Receivable, Modified in Period, Amount $ 51.0 $ 114.0
Financing Receivable, Modified, Subsequent Default $ 18.0  
Number of Days Past Due Following Modification to be Considered a Payment Default 30 days  
Commercial [Member] | Extended Maturity    
Financing Receivable, Loan Modifications [Line Items]    
Financing Receivable, Modified in Period, Amount $ 39.0 110.0
Healthcare [Member] | Commercial [Member]    
Financing Receivable, Loan Modifications [Line Items]    
Financing Receivable, Modified in Period, Amount 26.0 90.0
Healthcare [Member] | Commercial [Member] | Extended Maturity    
Financing Receivable, Loan Modifications [Line Items]    
Financing Receivable, Modified, Subsequent Default 11.0  
Services [Member] | Commercial [Member]    
Financing Receivable, Loan Modifications [Line Items]    
Financing Receivable, Modified in Period, Amount 10.0  
Energy [Member] | Commercial [Member]    
Financing Receivable, Loan Modifications [Line Items]    
Financing Receivable, Modified in Period, Amount   14.0
US Government Agency Insured Loans [Member] | Residential Mortgage [Member] | Loans to individuals [Member]    
Financing Receivable, Loan Modifications [Line Items]    
Financing Receivable, Modified in Period, Amount 7.5  
Financing Receivable, Modified, Subsequent Default   1.1
US Government Agency Insured Loans [Member] | Residential Mortgage [Member] | Loans to individuals [Member] | Extended Maturity and Interest Rate Reduction    
Financing Receivable, Loan Modifications [Line Items]    
Financing Receivable, Modified in Period, Amount 7.5 $ 4.1
Financing Receivable, Modified, Subsequent Default $ 5.3