Residential Mortgage Servicing Rights (Key Assumptions Used In Measuring The Fair Value Of MSR) (Details)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Transfers and Servicing [Abstract]
Constant prepayment rate	6.78%	6.39%	12.75%
Discount rate	10.25%	10.06%	9.57%
Weighted average life (years)	8 years 3 months 18 days	8 years 8 months 12 days	5 years 10 months 24 days