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Weighted Average Assumption of Projected Benefit Obligations (Details)
Dec. 31, 2013
Dec. 31, 2012
United States, Pension Benefits [Member]
    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Discount rate 4.78% 4.00%
Rate of compensation increase 0.00% 0.00%
France, Pension Benefits [Member]
    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Discount rate 2.38% 2.35%
Rate of compensation increase 2.50% 2.50%
United States, OPEB [Member]
    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Discount rate 4.30% 3.25%
Rate of compensation increase 3.50% 3.50%