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INVENTORIES (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2011
Dec. 31, 2010
Inventory Disclosure [Abstract]    
Finished equipment $ 465.2 $ 494.6
Replacement parts 217.7 228.9
Work-in-process 508.7 298.5
Raw materials and supplies 566.5 426.7
Inventories 1,758.1 1,448.7
Inventory reserves $ 120.1 $ 106.7