Asset Quality - Schedule of Financial Effects of Modifications to Borrowers Experiencing Financial Difficulty (Details)	3 Months Ended	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2023
Total commercial real estate loans | Commercial and Industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-average Interest Rate Reduction	(2.02%)	(3.85%)
Weighted-average Term Extension (in years)	2 months 1 day	3 months 21 days
Total commercial real estate loans | Commercial mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-average Interest Rate Reduction	0.00%	0.00%
Weighted-average Term Extension (in years)	1 month 2 days	1 year 3 days
Total consumer loans | Real estate — residential mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-average Interest Rate Reduction	(2.15%)	(2.06%)
Weighted-average Term Extension (in years)	6 years 1 month 9 days	6 years 4 months 9 days
Total consumer loans | Home equity loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-average Interest Rate Reduction	(4.16%)	(4.26%)
Weighted-average Term Extension (in years)	6 years 9 months 10 days	6 years 7 months 24 days
Total consumer loans | Consumer direct loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-average Interest Rate Reduction	(4.54%)	(4.05%)
Weighted-average Term Extension (in years)	7 months 28 days	8 months 19 days
Total consumer loans | Credit cards
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-average Interest Rate Reduction	(9.36%)	(12.82%)
Weighted-average Term Extension (in years)	3 months	6 months
Total consumer loans | Consumer indirect loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-average Interest Rate Reduction	(0.66%)	(0.66%)
Weighted-average Term Extension (in years)	4 months 17 days	5 months 1 day