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Inventories (Details) - USD ($)
$ in Millions
Sep. 30, 2016
Dec. 31, 2015
Inventory Disclosure [Abstract]    
Finished goods $ 741.9 $ 523.1
Repair and replacement parts 548.0 515.4
Work in process 150.6 97.5
Raw materials 340.8 287.4
Inventories, net $ 1,781.3 $ 1,423.4