Employee Benefits Plans (Details 11)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Other Postretirement benefit expense U.S.
Weighted-average discount rates used in determining annual postretirement benefit expense
Discount rate	4.15%	5.00%	4.10%
Other Postretirement benefit expense Foreign
Weighted-average discount rates used in determining annual postretirement benefit expense
Discount rate	4.00%	4.80%	4.00%