Benefit Plans Future Cash Flows (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months	$ 52,510
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	54,205
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	53,249
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	54,026
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	55,023
Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter	$ 268,134
Pension Plan [Member] | Foreign Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	0.51%	1.22%
Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months	$ 44,024
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	45,587
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	44,554
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	45,206
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	46,141
Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter	$ 224,446
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate	1.22%	0.97%	0.98%
Pension Plan [Member] | UNITED STATES
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	3.03%	4.11%
Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months	$ 8,247
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	8,427
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	8,549
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	8,700
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	8,776
Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter	$ 43,317
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate	4.11%	3.49%	3.97%
Other Postretirement Benefits Plan [Member] | UNITED STATES
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	2.54%	2.65%
Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months	$ 239
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	191
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	146
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	120
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	106
Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter	$ 371
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate	3.75%	3.15%	3.41%
Healthcare Cost Trend Rate Maximum	6.20%	7.00%
Healthcare Cost Trend Rate Minimum Percentage	6.40%
Defined Benefit Plan, Ultimate Health Care Cost Trend Rate	4.50%