Asset Quality - Schedule of Financial Effects of Modifications to Borrowers Experiencing Financial Difficulty (Details)	3 Months Ended
Mar. 31, 2026	Mar. 31, 2025
Total commercial real estate loans \| Commercial and Industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-average Interest Rate Change	(12.83%)	(22.20%)
Weighted-average Term Extension (in years)	9 months 7 days	5 months 19 days
Total commercial real estate loans \| Commercial mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-average Interest Rate Change	0.00%	0.00%
Weighted-average Term Extension (in years)	3 months 14 days	6 months 7 days
Total consumer loans \| Real estate — residential mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-average Interest Rate Change	(2.00%)	(1.45%)
Weighted-average Term Extension (in years)	6 years 10 months 13 days	5 years 2 months 26 days
Total consumer loans \| Home equity loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-average Interest Rate Change	(1.67%)	(1.83%)
Weighted-average Term Extension (in years)	8 years 9 months 29 days	6 years 18 days
Total consumer loans \| Other consumer loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-average Interest Rate Change	(5.51%)	(3.22%)
Weighted-average Term Extension (in years)	1 year 3 months 18 days	4 months 24 days
Total consumer loans \| Credit cards
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-average Interest Rate Change	(20.99%)	(2.22%)
Weighted-average Term Extension (in years)	3 months	3 months

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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