Employee Benefits (Weighted-Average Assumptions Used) (Details)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Qualified Pension Plan [Member]
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate	3.00%	2.71%
Rate of compensation increase	3.75%	3.75%
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Equivalent single discount rate for benefit obligations	2.71%	3.42%	4.38%
Equivalent single discount rate for service cost	2.86%	3.54%	4.44%
Equivalent single discount rate for interest cost	2.16%	3.07%	4.12%
Expected long-term return on plan assets	5.75%	5.75%	5.75%
Rate of compensation increase	3.75%	3.75%	3.75%
Non-Qualified Retirement Plans [Member]
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate	2.90%	2.50%
Rate of compensation increase	3.75%	3.75%
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Equivalent single discount rate for benefit obligations	2.51%	3.30%	4.28%
Equivalent single discount rate for service cost	2.94%	3.62%	4.48%
Equivalent single discount rate for interest cost	1.97%	2.93%	3.98%
Rate of compensation increase	3.75%	3.75%	3.75%