Weighted Average Allocations of Plan Assets (Details) - Pension Plan [Member]	Dec. 31, 2020	Dec. 31, 2019
UNITED STATES
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, Plan Assets, Actual Allocation, Percentage	32.00%	35.00%
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	35.00%
UNITED STATES | Debt Securities [Member]
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage	55.00%	53.00%
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	55.00%
UNITED STATES | Cash and Cash Equivalents [Member]
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage	13.00%	12.00%
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	10.00%
Foreign Plan [Member]
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, Plan Assets, Actual Allocation, Percentage	22.00%	22.00%
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	23.00%
Foreign Plan [Member] | Debt Securities [Member]
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage	76.00%	75.00%
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	77.00%
Foreign Plan [Member] | Cash and Cash Equivalents [Member]
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage	2.00%	3.00%
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	0.00%