Loans and Allowance for Credit Losses for Loans - Financing Effect of Loan Modification (Details)	3 Months Ended
	Mar. 31, 2023
Commercial and industrial | Term extension
Troubled Debt Restructurings
Weighted average term increase from modification	12 months
Commercial and industrial | Term extension and interest rate reduction
Troubled Debt Restructurings
Weighted average term increase from modification	12 months
Residential mortgage
Troubled Debt Restructurings
Weighted average term increase from modification	12 months
Consumer
Troubled Debt Restructurings
Weighted average term increase from modification	60 months
Maximum | Commercial and industrial
Troubled Debt Restructurings
Weighted average contractual interest rate	2.11%
Maximum | Commercial Real Estate
Troubled Debt Restructurings
Weighted average term increase from modification	36 months
Minimum | Commercial and industrial
Troubled Debt Restructurings
Weighted average contractual interest rate	1.00%
Minimum | Commercial Real Estate
Troubled Debt Restructurings
Weighted average term increase from modification	6 months