Product Warranty (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Dec. 31, 2015
Product Warranties Disclosures [Abstract]
Warranty provision as a percentage of sales	1.10%	0.30%
Product warranty rollforward
Beginning balance, January 1	$ 107.9	$ 132.0
Provisions	24.6	6.3
Payments	(19.0)	(8.2)
Translation adjustment	2.9	(19.3)
Ending balance, March 31	116.4	110.8
Product warranty liability
Accounts payable and accrued expenses			$ 72.5	$ 70.6
Other non-current liabilities			43.9	37.3
Total product warranty liability	$ 107.9	$ 132.0	$ 116.4	$ 107.9
Minimum warranty term (in years)	1 year
Maximum warranty term (in years)	3 years