Employee Benefit Plans Assumptions Used for U.S Defined Benefit Plans Table (Details) - Domestic Plan [Member]	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Discount rate for obligations	3.76%	4.35%	4.62%
Discount rate for benefit costs	4.35%	4.62%	4.17%
Expected long-term rate of return on plan assets	7.13%	7.13%	7.50%