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Employee Benefits (Weighted Average Assumptions- Accrued Postretirement Benefits - Other Postretirment Benefit Plans) (Details) (Other Postretirement Benefit Plans, Defined Benefit)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Defined Benefit Plan, Measurement Date October 3, 2013  
Accrued Postretirement Benefit
   
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Discount rate 4.90% 4.10%
Initial 7.50% 7.75%
Ultimate 4.50% 4.50%
Year ultimate reached 2026 2026
Defined Benefit Plan, Effect of One Percentage Point Increase on Discount Rate 1.00%  
Defined Benefit Plan, Effect of One Percentage Point Increase on Accumulated Postretirement Benefit Obligation, Percentage 12.80%  
Defined Benefit Plan, Effect of One Percentage Point Decrease on Discount Rate 1.00%  
Defined Benefit Plan, Effect of One Percentage Point Decrease on Accumulated Postretirement Benefit Obligation, Percentage 16.10%