Employee Benefit Plans Weighted Average Asset Allocation by Pension Plan (Details)		Dec. 31, 2020	Dec. 31, 2019
Foreign Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage		100.00%	100.00%
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage		100.00%
Foreign Plan [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage		33.00%	30.00%
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage		33.00%
Foreign Plan [Member] | Fixed Income Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage		44.00%	46.00%
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage		45.00%
Foreign Plan [Member] | Balanced Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage	[1]	22.00%	23.00%
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	[1]	22.00%
Foreign Plan [Member] | Cash and Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage		1.00%	1.00%
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage		0.00%
United States
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage		100.00%	100.00%
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage		100.00%
United States | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage		67.00%	62.00%
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage		60.00%
United States | Fixed Income Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage		32.00%	34.00%
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage		36.00%
United States | Balanced Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage	[1]	0.00%	0.00%
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	[1]	0.00%
United States | Cash and Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage		1.00%	4.00%
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage		4.00%

[1] Diversified growth funds invest in a broad range of asset classes including equities, investment grade and high yield bonds, commodities, property, private equity, infrastructure and currencies.