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Other Post-Retirement Employee Benefit Plans (Weighted Average Assumptions Used To Determine Benefit Obligations) (Details) (Other Post-Retirement Benefits)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Other Post-Retirement Benefits
   
Defined Benefit Plan Disclosure [Line Items]    
Discount rate 4.80% 3.90%
Medical trend rate - initial 7.30% 7.50%
Medical trend rate - grading period 15 years 16 years
Medical trend rate - ultimate 4.50% 4.50%