Financial Statement Presentation, Allowance for Credit Losses on Loans (Details)	6 Months Ended
	Jun. 30, 2022 Scenario
Allowance for Credit Losses on Loans [Abstract]
Number of days past due when loans are considered to be in payment default	90 days
Period considered for reasonable and supportable forecast	24 months
Number of economic scenarios evaluated by management	2
Deferral period of chapter 13 bankruptcies	60 months
Non-payment period of nonaccrual loans for individual assessment	180 days