Inventories (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Inventories (at FIFO, which approximates replacement value):
Raw materials	$ 161.9	$ 154.3
Work in process	142.2	122.8
Finished goods	635.9	574.3
Subtotal (at FIFO)	940.0	851.4
Reduction of certain inventories to LIFO basis	(56.7)	(53.3)
Total	883.3	798.1
Inventories (Textual) [Abstract]
U.S. inventories determined by LIFO method	$ 136	$ 121