Product Warranty (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015		Dec. 31, 2014	Mar. 31, 2014
Product Warranties Disclosures [Abstract]
Warranty liability measurement period adjustment			42.1
Product warranty rollforward
Beginning balance, January 1	$ 132.0			$ 72.7
Provisions	6.3			5.0
Acquisition	0	[1]		64.9	[1]
Payments	(8.2)			(7.3)
Translation adjustment	(19.3)			0
Ending balance, March 31	110.8		132.0	135.3
Product warranty liability
Accounts payable and accrued expenses	78.5		91.9
Other non-current liabilities	32.3		40.1
Total product warranty liability	$ 110.8		$ 132.0	$ 135.3
Minimum warranty term (in years)	1 year
Maximum warranty term (in years)	3 years

[1] .