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INVENTORIES (Details) - USD ($)
$ in Millions
Jun. 30, 2018
Dec. 31, 2017
Inventory Disclosure [Abstract]    
Finished equipment $ 393.9 $ 419.6
Replacement parts 158.4 163.3
Work-in-process 181.3 165.6
Raw materials and supplies 271.0 221.1
Inventories 1,004.6 969.6
Inventory reserves $ 83.4 $ 85.8