Guarantees (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Movement in Standard Product Warranty Accrual [Roll Forward]
Beginning balance	$ 13.2	$ 13.7
Provision	9.7	10.0
Expenditures/other	(9.1)	(10.5)
Ending balance	$ 13.8	$ 13.2