v3.26.1
Credit Quality and the Allowance for Loan and Lease Losses - Summary of Financial Impacts of Commercial Loans That Were Modified for Borrowers Experiencing Financial Difficulty (Details) - Commercial
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Commercial and industrial loans    
Financing Receivable, Modifications    
Weighted-average length of payment delay 4 months 4 months
Weighted-average length of term extensions 8 months 6 months
Commercial mortgage owner-occupied loans    
Financing Receivable, Modifications    
Weighted-average length of payment delay   10 months
Weighted-average length of term extensions 3 months 9 months
Commercial mortgage nonowner-occupied loans    
Financing Receivable, Modifications    
Weighted-average length of payment delay 3 months  
Weighted-average length of term extensions 11 months 4 months
Commercial construction loans    
Financing Receivable, Modifications    
Weighted-average length of payment delay   7 months
Weighted-average length of term extensions 9 months 13 months