Pension And Postretirement Benefits (Schedule Of Weighted Average Assumptions Used To Determine Benefit Obligation) (Details)	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
United States | Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate	3.34%	4.36%	3.75%
United States | Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate	3.20%	4.30%	3.90%
Foreign Plan [Member] | Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate	1.70%	2.42%	2.15%
Rate of compensation increase	2.89%	3.06%	2.80%
Foreign Plan [Member] | Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate		3.30%	3.30%