Inventories (Details) - USD ($) $ in Millions	Mar. 31, 2017	Dec. 31, 2016
Inventory Disclosure [Abstract]
Inventory, Finished Goods, Net of Reserves	$ 263.0	$ 213.8
Inventory, Work in Process, Net of Reserves	91.2	81.6
Inventory, Raw Materials, Net of Reserves	250.5	238.5
Inventory, Supplies, Net of Reserves	58.8	58.8
Total inventories	$ 663.5	$ 592.7