Employee Benefits Plans (Details 4)	Dec. 31, 2016	Dec. 31, 2015
U.S.
Summary of weighted-average actuarial assumptions used in determining funded status
Discount rate	4.20%	4.50%
Rate of increase in compensation levels	3.00%	3.00%
Foreign
Summary of weighted-average actuarial assumptions used in determining funded status
Discount rate	3.90%	4.00%
Rate of increase in compensation levels	3.10%	3.10%