Defined Benefit Pension Plans - Significant Actuarial Weighted Assumptions (Discount Rate) (Details)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Discount rate	1.76%	2.24%	2.21%
Percentage of Benefit Plans Denominated in Euro [Domain]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Percentage of benefit plans denominated in euro	93
Shorter duration euro denominated defined benefit plans [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Discount rate	0.25%
Longer duration euro denominated defined benefit plans [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Discount rate	2.00%