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Employee Benefit Plan - Weighted Average Assumptions (Details)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
U. S. Pension Plans    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Discount rate (in hundredths) 3.25% 3.75%
Measurement date 1/1/2015 1/1/2014
Discount rate (in hundredths) 3.50% 3.25%
Health care cost trend rate (in hundredths) 0.00% 0.00%
Measurement date 12/31/2015 12/31/2014
U. S. Postretirement Benefits    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Discount rate (in hundredths) 3.25% 3.75%
Measurement date 1/1/2015 1/1/2014
Discount rate (in hundredths) 3.50% 3.25%
Health care cost trend rate (in hundredths) 7.00% 7.00%
Measurement date 12/31/2015 12/31/2014
Foreign Pension Plans    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Measurement date 1/1/2015 1/1/2014
Measurement date 12/31/2015 12/31/2014
Foreign Pension Plans | Minimum    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Discount rate (in hundredths) 2.25% 3.50%
Expected return on plan assets (in hundredths) 2.25% 2.25%
Rate of compensation increase (in hundredths) 2.25% 2.25%
Discount rate (in hundredths) 2.25% 2.25%
Rate of compensation increase (in hundredths) 2.25% 2.25%
Foreign Pension Plans | Maximum    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Discount rate (in hundredths) 4.25% 5.25%
Expected return on plan assets (in hundredths) 6.25% 6.75%
Rate of compensation increase (in hundredths) 5.00% 4.50%
Discount rate (in hundredths) 4.25% 4.25%
Rate of compensation increase (in hundredths) 4.00% 5.00%