Benefit Obligations (Schedule of Percentage of US and International Projected Benefit Obligation) (Details)	Dec. 31, 2020	Dec. 31, 2019
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Percentage of projected benefit obligation	100.00%	100.00%
Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Percentage of projected benefit obligation	100.00%	100.00%
UNITED STATES | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Percentage of projected benefit obligation	78.00%	81.00%
UNITED STATES | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Percentage of projected benefit obligation	50.00%	55.00%
Foreign Plan [Member] | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Percentage of projected benefit obligation	22.00%	19.00%
Foreign Plan [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Percentage of projected benefit obligation	50.00%	45.00%