Commitments and Contingencies (Change in Product Warranty Liabilities) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Changes in the total warranty liabilities
Total warranty liability as of beginning of period	$ 109.9	$ 101.1
Payments made	(31.6)	(28.8)
Changes resulting from issuance of new warranties	36.8	41.1
Changes in estimates associated with pre-existing liabilities	(1.5)	(4.8)
Changes in foreign currency translation rates and other	(0.8)	1.3
Total warranty liability as of end of period	111.6	$ 109.9
Standard and Extended Product Warranty Accrual, Divestiture of Businesses	$ (1.2)