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Pension and Postretirement Plans (Schedule Of Weighted-Average Assumptions) (Details)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
United States Pension Benefits [Member]      
Weighted-average assumptions used to determine net periodic benefit cost      
Discount rate 2.89% 3.38% 3.09%
Expected return on plan assets 4.81% 5.28% 7.00%
Weighted-average assumptions used to determine benefit obligations at measurement date      
Discount rate 3.42% 2.89%  
International Pension Benefits [Member]      
Weighted-average assumptions used to determine net periodic benefit cost      
Discount rate 3.65% 4.45% 4.50%
Expected return on plan assets 6.25% 6.45% 6.15%
Weighted-average assumptions used to determine benefit obligations at measurement date      
Discount rate 3.75% 3.65%