Product Warranty (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Dec. 31, 2016
Product warranty rollforward
Beginning balance, January 1	$ 95.3	$ 107.9
Provisions	51.3	47.4
Acquisitions	0.4	6.9
Warranty accruals held for sale	0.0	(9.2)
Payments	(45.7)	(36.7)
Translation adjustment	5.4	2.1
Ending balance, September 30	106.7	118.4
Product warranty liability
Accounts payable and accrued expenses			$ 64.8	$ 63.9
Other non-current liabilities			41.9	31.4
Total product warranty liability	$ 95.3	$ 107.9	$ 106.7	$ 95.3
Minimum warranty term (in years)	1 year
Maximum warranty term (in years)	3 years