Product Warranty (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Dec. 31, 2015
Product Warranties Disclosures [Abstract]
Warranty provision as a percentage of sales	0.80%	0.30%
Product warranty rollforward
Beginning balance, January 1	$ 107.9	$ 132.0
Provisions	34.7	12.7
Acquisitions	3.9	(17.1)
Payments	(30.8)	(28.9)
Translation adjustment	1.2	(7.9)
Ending balance, June 30	116.9	90.8
Product warranty liability
Accounts payable and accrued expenses			$ 70.6	$ 70.6
Other non-current liabilities			46.3	37.3
Total product warranty liability	$ 107.9	$ 132.0	$ 116.9	$ 107.9
Minimum warranty term (in years)	1 year
Maximum warranty term (in years)	3 years
Warranty accrual reversal from contract expiration	$ 5.2