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Employee Benefit Plans Assumptions Used to Measure the Projected Benefit Obligations (Details) - Pension Plans, Defined Benefit
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Discount rate   4.00%  
Minimum      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Discount rate 3.70%    
Projected annual salary increases 0.00% 0.00% 0.00%
Maximum      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Discount rate 3.83%    
Projected annual salary increases 3.00% 3.00% 3.00%