Commitments and Contingencies (Details 3) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Jun. 30, 2011	Dec. 31, 2011	Dec. 31, 2010
Changes in the total warranty liabilities
Total warranty liability, Beginning Balance		$ 75.5	$ 81.5
Payments		(27.7)	(27.6)
Changes resulting from issuance of new warranties		25.6	27.6
Change in estimates associated with pre-existing liabilities	2.5	(0.8)	(6.2)
Changes in foreign currency translation rates		(0.4)	0.2
Total warranty liability, Ending Balance		$ 72.2	$ 75.5