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Long-term Employee Benefits - Schedule of Accumulated and Projected Benefit Obligations (Details) - Successor [Member] - Pension Plan [Member] - USD ($)
$ in Millions
Dec. 31, 2015
Dec. 31, 2014
Defined Benefit Plan Disclosure [Line Items]    
ABO $ 500.1 $ 559.4
Plans with PBO in excess of plan assets:    
PBO 537.1 606.2
ABO 495.7 553.2
Fair value plan assets 273.7 287.5
Plans with ABO in excess of plan assets:    
PBO 532.0 602.0
ABO 492.7 550.9
Fair value plan assets $ 270.3 $ 285.1