Product Warranty (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011
Product warranty rollforward
Beginning balance	$ 72.7	$ 66.8
Acquisition	0	4.5
Provisions	17.1	24.1
Payments	(16.5)	(25.4)
Translation adjustment	(0.9)	3.7
Ending balance	72.4	73.7
Product warranty liability
Accounts payable and accrued expenses	38.6		38.6
Other non-current liabilities	33.8		34.1
Total product warranty liability	$ 72.4	$ 73.7