Loans (Loan Modifications Made To Borrowers Experiencing Financial Difficulty) (Details) - Payment Deferral $ in Millions	3 Months Ended
	Mar. 31, 2023 USD ($)
Financing Receivable, Troubled Debt Restructuring [Line Items]
AMORTIZED COST BASIS	$ 2.9
% OF TOTAL SEGMENT	0.05%
Personal
Financing Receivable, Troubled Debt Restructuring [Line Items]
AMORTIZED COST BASIS	$ 2.9
% OF TOTAL SEGMENT	0.05%
Personal | Residential Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
AMORTIZED COST BASIS	$ 2.9
% OF TOTAL SEGMENT	0.05%
Personal | Residential Mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modified, weighted average term increase from modification	180 days