Loan Servicing (Narrative) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Transfers and Servicing of Financial Assets [Abstract]
Serviced sold mortgage loans	$ 2,020,000,000.00	$ 2,140,000,000	$ 2,050,000,000.00
Serviced sold mortgage loans with recourse	3,200,000	3,400,000	3,200,000
Servicing fees included in other service income	1,300,000	$ 1,400,000
Mortgage Loans Sold with Recourse, Reserve	$ 56,000		$ 59,000