Fair Value Measurements and Disclosures (Schedule of Quantitative Information about Level Three Fair Value Measurements - Nonrecurring Basis) (Details)	3 Months Ended
	Mar. 31, 2023 USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Valuation Technique, Discounted cash flow	Discounted cash flow
Mortgage Servicing Rights
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans in foreclosure	$ 1,000
Mortgage Servicing Rights | Minimum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Discount rate	9.51%
Prepayment speeds (CPR)*	6.33%	[1]
Performing loans	$ 70
Delinquent loans	$ 200
Mortgage Servicing Rights | Maximum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Discount rate	9.71%
Prepayment speeds (CPR)*	7.47%	[1]
Performing loans	$ 72
Delinquent loans	$ 750
Mortgage Servicing Rights | Weighted Average [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Discount rate	9.58%	[1]
Prepayment speeds (CPR)*	6.53%	[1]
Performing loans	$ 71	[1]

[1] *Ranges and weighted averages based on interest rate tranches