Employee Benefits (Schedule Of Weighted Average Assumptions Used) (Details)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
United States
Defined Benefit Plan Disclosure [Line Items]
Discount rate	2.60%	2.10%	3.00%
Rate of compensation increase	0.00%	0.00%	0.00%
Discount rate for benefit obligations	2.10%	3.00%	4.10%
Discount rate for service cost	2.40%	3.20%	4.20%
Discount rate for interest cost	1.50%	2.60%	3.70%
Expected return on plan assets	7.00%	7.00%	7.00%
Rate of compensation increase	0.00%	0.00%	0.00%
United States | Other Postretirement Benefits Plan
Defined Benefit Plan Disclosure [Line Items]
Discount rate	2.20%	1.50%	2.50%
Defined Benefit Plan, Health Care Cost Trend Rate Assumed, Next Fiscal Year	6.30%	6.50%	6.80%
Defined Benefit Plan, Defined Benefit Obligation, Ultimate Health Care Cost Trend Rate	4.50%	4.50%	4.50%
Defined Benefit Plan, Years To Health Care Cost Trend Rate Reaches Ultimate Trend Rate, Benefit Obligation	8 years	9 years	10 years
Discount rate for benefit obligations	1.50%	2.50%	3.70%
Discount rate for service cost	2.10%	2.80%	4.00%
Discount rate for interest cost	0.90%	2.20%	3.40%
Defined Benefit Plan, Health Care Cost Trend Rate Assumed for Next Fiscal Year, Periodic Benefit Costs	6.50%	6.80%	7.00%
Defined Benefit Plan, Ultimate Health Care Cost Trend Rate	4.50%	4.50%	4.50%
Defined Benefit Plan, Years To Health Care Cost Trend Rate Reaches Ultimate Trend Rate	8 years	9 years	10 years
Foreign Plan
Defined Benefit Plan Disclosure [Line Items]
Discount rate	1.40%	0.80%	1.30%
Rate of compensation increase	2.60%	2.60%	2.60%
Discount rate for benefit obligations	0.80%	1.30%	2.00%
Discount rate for service cost	0.80%	1.40%	2.20%
Discount rate for interest cost	0.80%	1.60%	2.20%
Expected return on plan assets	4.00%	4.00%	4.00%
Rate of compensation increase	2.60%	2.60%	2.60%
Foreign Plan | Other Postretirement Benefits Plan
Defined Benefit Plan Disclosure [Line Items]
Discount rate	3.50%	2.70%	3.20%
Defined Benefit Plan, Health Care Cost Trend Rate Assumed, Next Fiscal Year	5.60%	5.60%	5.70%
Defined Benefit Plan, Defined Benefit Obligation, Ultimate Health Care Cost Trend Rate	4.00%	4.00%	4.00%
Defined Benefit Plan, Years To Health Care Cost Trend Rate Reaches Ultimate Trend Rate, Benefit Obligation	19 years	20 years	21 years
Discount rate for benefit obligations	2.70%	3.20%	3.90%
Discount rate for service cost	2.70%	3.20%	3.90%
Discount rate for interest cost	2.70%	3.20%	3.90%
Defined Benefit Plan, Health Care Cost Trend Rate Assumed for Next Fiscal Year, Periodic Benefit Costs	5.60%	5.70%	5.80%
Defined Benefit Plan, Ultimate Health Care Cost Trend Rate	4.00%	4.00%	4.00%
Defined Benefit Plan, Years To Health Care Cost Trend Rate Reaches Ultimate Trend Rate	19 years	20 years	21 years