Pension, Other Postretirement Benefits and Savings Plans - Weighted Average Assumptions Used (Details)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
United States | Pension Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Discount rate, benefit obligations	3.22%	4.24%
Discount rate for determining interest costs, benefit costs	3.85%	3.09%	3.18%
Expected long term return on plan assets, benefit costs	5.25%	4.58%	5.08%
United States | Other Postretirement Benefits
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Discount rate, benefit obligations	3.14%	4.16%
Discount rate for determining interest costs, benefit costs	3.79%	2.99%	3.02%
Non-U.S. | Pension Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Discount rate, benefit obligations	1.98%	2.69%
Rate of compensation increase, benefit obligations	2.92%	2.91%
Discount rate for determining interest costs, benefit costs	2.84%	2.56%	2.70%
Expected long term return on plan assets, benefit costs	2.95%	3.02%	3.12%
Rate of compensation increase, benefit cost	2.91%	2.91%	3.18%
Non-U.S. | Other Postretirement Benefits
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Discount rate, benefit obligations	4.39%	5.03%
Discount rate for determining interest costs, benefit costs	6.25%	6.13%	5.98%