Inventories (Details) (USD $) In Millions	Sep. 30, 2011	Dec. 31, 2010
Components of net inventories
Raw materials	$ 206.5	$ 168.6
Work-in-process	118.9	97.9
Finished goods	314.4	288.5
Perishable tooling and supplies	7.2	7.6
Gross Inventories	647.0	562.6
Allowance for excess and obsolete inventory	(63.9)	(57.8)
Excess of FIFO costs over LIFO costs	(76.8)	(65.9)
Net inventories	$ 506.3	$ 438.9