Pension and Other Employee Benefits Pension and Other Employee Benefits (Long term returns used in ROA assumptions) (Details)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
25th percentile [Member]
Long term returns used in ROA assumptions [Line Items]
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Return on Assets	5.62%	6.15%	6.67%
75th percentile [Member]
Long term returns used in ROA assumptions [Line Items]
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Return on Assets	9.41%	9.84%	10.65%