Loans and Related Allowance for Credit Losses, Financial Effects of Consumer Loan Modifications (Details) - Total Consumer [Member]	3 Months Ended	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2023
Residential mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted average interest rate reduction	1.68%	1.60%
Weighted average payments deferred (months)	6 months	4 months
Weighted average term extension (years)	9 years 4 months 24 days	9 years 8 months 12 days
Accounts, Notes, Loans and Financing Receivable Textual [Abstract]
Weighted average principal deferred, term	27 years 3 months 18 days	27 years
Credit card [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted average interest rate reduction	21.79%	21.41%
Auto [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted average interest rate reduction	4.21%	4.02%
Weighted average payments deferred (months)	6 months	6 months
Other consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted average interest rate reduction	8.12%	10.10%
Weighted average payments deferred (months)	6 months	5 months
Weighted average term extension (years)	1 year 10 months 24 days	2 years 4 months 24 days