Employee Benefit Plans (Weighted-average Assumptions Used) (Details)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Pension Benefits [Member]
Weighted-average assumptions used to determine benefit obligations as of December 31:
Discount rate	4.17%	4.51%
Rate of compensation increase	4.23%	4.23%
Weighted-average assumptions used to determine net periodic benefit cost for the years ended December 31:
Discount rate - service cost	4.30%	3.97%	4.88%
Discount rate - interest cost	3.76%	3.97%	4.88%
Expected long-term return on plan assets	7.50%	7.50%	8.00%
Rate of compensation increase	4.23%	4.23%	4.23%
Other Benefits [Member]
Weighted-average assumptions used to determine benefit obligations as of December 31:
Discount rate	3.50%	3.55%
Rate of compensation increase	0.00%	0.00%
Weighted-average assumptions used to determine net periodic benefit cost for the years ended December 31:
Discount rate - service cost	4.95%	3.23%	3.57%
Discount rate - interest cost	2.49%	3.23%	3.57%
Expected long-term return on plan assets	0.00%	0.00%	0.00%
Rate of compensation increase	0.00%	0.00%	0.00%
Foreign Pension Benefits [Member]
Weighted-average assumptions used to determine benefit obligations as of December 31:
Discount rate	2.83%	3.59%
Rate of compensation increase	3.78%	3.70%
Weighted-average assumptions used to determine net periodic benefit cost for the years ended December 31:
Discount rate - service cost	2.04%	4.12%	4.38%
Discount rate - interest cost	3.45%	4.12%	4.38%
Expected long-term return on plan assets	4.87%	5.22%	6.32%
Rate of compensation increase	3.70%	3.48%	3.31%