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Operations and Summary of Significant Accounting Policies - Inventories (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Operations and Summary of Significant Accounting Policies [Abstract]    
Inventory Valuation Reserves $ 126.5us-gaap_InventoryValuationReserves $ 119.9us-gaap_InventoryValuationReserves
Inventory, Net [Abstract]    
Finished goods 616.6us-gaap_InventoryFinishedGoodsNetOfReserves 775.7us-gaap_InventoryFinishedGoodsNetOfReserves
Repair and replacement parts 536.4us-gaap_InventoryPartsAndComponentsNetOfReserves 550.2us-gaap_InventoryPartsAndComponentsNetOfReserves
Work in process 130.5us-gaap_InventoryWorkInProcessNetOfReserves 109.0us-gaap_InventoryWorkInProcessNetOfReserves
Raw materials 467.2us-gaap_InventoryRawMaterialsNetOfReserves 581.2us-gaap_InventoryRawMaterialsNetOfReserves
Inventories, net $ 1,750.7us-gaap_InventoryNet $ 2,016.1us-gaap_InventoryNet