Product Warranty (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2013 years	Sep. 30, 2012	Dec. 31, 2012
Product warranty rollforward
Beginning balance, January 1	$ 64.9	$ 72.7
Provisions	29.1	23.1
Payments	(28.3)	(31.9)
Translation adjustment	0.7	0.2
Ending balance, September 30	66.4	64.1
Product warranty liability
Accounts payable and accrued expenses	33.3		33.1
Other non-current liabilities	33.1		31.8
Total product warranty liability	$ 66.4	$ 64.1
Minimum warranty term (in years)	1
Maximum warranty term (in years)	3