Employee Benefits (Schedule of weighted-average assumptions) (Details)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Employee Benefits
Discount rate	2.80%	2.50%
Rate of compensation increase
Discount rate	2.50%	3.25%
Expected long-term return on plan assets	4.50%	5.50%
Rate of compensation increase