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Credit Quality and the Allowance for Loan and Lease Losses - Summary of Financial Impacts of Loans That Were Modified for Borrowers Experiencing Financial Difficulty (Details) | 3 Months Ended
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Mar. 31, 2025 | Mar. 31, 2024
Commercial | Commercial and industrial loans |  |
Financing Receivable, Modifications |  |
Weighted-average length of term extensions | 6 months | 5 months
Weighted-average length of payment delay | 4 months | 3 months
Commercial | Commercial mortgage owner-occupied loans |  |
Financing Receivable, Modifications |  |
Weighted-average length of term extensions | 9 months | 3 months
Weighted-average length of payment delay | 10 months |
Commercial | Commercial mortgage nonowner-occupied loans |  |
Financing Receivable, Modifications |  |
Weighted-average length of term extensions | 4 months | 6 months
Commercial | Commercial construction loans |  |
Financing Receivable, Modifications |  |
Weighted-average length of term extensions | 13 months |
Weighted-average length of payment delay | 7 months |
Residential Mortgage |  |
Financing Receivable, Modifications |  |
Weighted-average length of term extensions | 10 years 1 month 6 days | 10 years 10 months 24 days
Approximate amount of payment delays as a percentage of the related loan balances | 11.00% | 12.00%
Consumer | Home equity |  |
Financing Receivable, Modifications |  |
Weighted-average length of term extensions | 16 years 9 months 18 days | 27 years 1 month 6 days
Approximate amount of payment delays as a percentage of the related loan balances | 8.00% | 4.00%
Weighted-average interest rate, before modification | 8.30% | 9.10%
Weighted-average interest rate, after modification | 6.90% | 7.30%
Consumer | Credit card |  |
Financing Receivable, Modifications |  |
Weighted-average interest rate, before modification | 23.00% | 24.10%
Weighted-average interest rate, after modification | 4.30% | 4.20%

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