Pensions and Other Postretirement Benefit Plans (Schedule of Asset Allocation) (Details)	Dec. 31, 2020	Dec. 31, 2019
United States
Defined Benefit Plan Disclosure [Line Items]
Target Allocation	100.00%
Percentage of plan assets at plan measurement date	100.00%	100.00%
United States | Common Stocks and equity funds
Defined Benefit Plan Disclosure [Line Items]
Target Allocation	0.00%
Percentage of plan assets at plan measurement date	0.00%	1.00%
United States | Debt securities
Defined Benefit Plan Disclosure [Line Items]
Target Allocation	100.00%
Percentage of plan assets at plan measurement date	98.00%	96.00%
United States | Real estate
Defined Benefit Plan Disclosure [Line Items]
Target Allocation	0.00%
Percentage of plan assets at plan measurement date	2.00%	2.00%
United States | Other
Defined Benefit Plan Disclosure [Line Items]
Target Allocation	0.00%
Percentage of plan assets at plan measurement date	0.00%	1.00%
Foreign Plan
Defined Benefit Plan Disclosure [Line Items]
Target Allocation	100.00%
Percentage of plan assets at plan measurement date	100.00%	100.00%
Foreign Plan | Common Stocks and equity funds
Defined Benefit Plan Disclosure [Line Items]
Target Allocation	13.00%
Percentage of plan assets at plan measurement date	13.00%	13.00%
Foreign Plan | Debt securities
Defined Benefit Plan Disclosure [Line Items]
Target Allocation	82.00%
Percentage of plan assets at plan measurement date	81.00%	80.00%
Foreign Plan | Real estate
Defined Benefit Plan Disclosure [Line Items]
Target Allocation	1.00%
Percentage of plan assets at plan measurement date	1.00%	1.00%
Foreign Plan | Other
Defined Benefit Plan Disclosure [Line Items]
Target Allocation	4.00%
Percentage of plan assets at plan measurement date	5.00%	6.00%