Inventory (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Inventory, Net Disclosure [Abstract]
Raw Materials	$ 125.8	$ 122.2
Work in Process	78.9	71.3
Finished Goods	221.2	213.3
Inventory Subtotal	425.9	406.8
Excess of FIFO over LIFO cost basis	(88.5)	(88.5)
Inventories, Net	$ 337.4	$ 318.3