Benefit Plans Benefit Plans (Weighted Average Assumptions) (Details)		12 Months Ended
		Dec. 31, 2019 Rate	Dec. 31, 2018 Rate
Foreign Plan [Member]
Benefit Obligation:
Discount rate		7.58%	5.63%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate	[1]	5.62%	5.23%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets		4.10%	3.94%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase		4.78%	4.65%
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase		6.11%	4.79%
UNITED STATES
Benefit Obligation:
Discount rate		3.32%	4.35%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate		4.35%	3.67%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets		5.08%	5.73%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase		3.34%	3.34%
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase		3.33%	3.34%

[1] Includes an inflation factor that is used to calculate future periodic benefit cost, but is not used to calculate the benefit obligation