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Pension Benefit and Retirement Health and Life Insurance Benefits (Assumptions Used) (Details)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]    
Discount rate 4.75% 4.00%
Pension Benefits [Member]
   
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]    
Discount rate 4.75% 4.00%
Rate of compensation increase 0.00% 4.00%
Expected long-term rate of return on plan assets 7.50% 7.50%
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]    
Discount rate 4.00% 4.50%
Expected long-term rate of return on plan assets 7.50% 7.75%
Rate of compensation increase 4.00% 4.00%
Retirement Health and Life Insurance Benefits [Member]
   
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]    
Discount rate 3.25% 2.50%
Rate of compensation increase 0.00% 0.00%
Expected long-term rate of return on plan assets 0.00% 0.00%
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]    
Discount rate 2.50% 3.50%
Expected long-term rate of return on plan assets 0.00% 0.00%
Rate of compensation increase 0.00% 0.00%