Employee Benefit Plans (Weighted-average Assumptions Used) (Details)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Pension Benefits [Member]
Weighted-average assumptions used to determine benefit obligations as of December 31:
Discount rate	2.40%	3.19%
Rate of compensation increase	4.13%	4.23%
Weighted-average assumptions used to determine net periodic benefit cost for the years ended December 31:
Discount rate - service cost	2.89%	3.96%	3.48%
Discount rate - interest cost	2.99%	3.67%	3.22%
Expected long-term return on plan assets	6.50%	6.50%	6.50%
Rate of compensation increase	4.23%	4.23%	4.23%
Foreign Plan [Member]
Weighted-average assumptions used to determine benefit obligations as of December 31:
Discount rate	1.48%	2.15%
Rate of compensation increase	3.17%	3.20%
Weighted-average assumptions used to determine net periodic benefit cost for the years ended December 31:
Discount rate - service cost	0.73%	1.60%	1.32%
Discount rate - interest cost	2.30%	2.98%	2.67%
Expected long-term return on plan assets	3.31%	3.92%	4.19%
Rate of compensation increase	3.20%	3.77%	3.62%