Pension and Other Postretirement Benefits (Details 7)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Interest crediting rate	1.34%	1.03%	1.03%
Foreign Plan [Member]
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Interest crediting rate	1.34%	1.72%
Pensions [Member] | U.S. [Member]
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate	2.65%	3.40%
Increase in compensation	2.56%	2.56%
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Discount rate	3.40%	4.40%	3.90%
Long-term rate of return	7.75%	7.75%	7.75%
Increase in compensation	2.56%	2.56%	2.56%
Pensions [Member] | Foreign Plan [Member]
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate	0.83%	1.26%
Increase in compensation	2.75%	2.72%
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Discount rate	1.28%	2.07%	1.90%
Long-term rate of return	3.02%	3.90%	4.09%
Increase in compensation	2.75%	2.72%	2.17%