Commitments and Contingencies (Changes in Product Warranty Liabilities) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2018 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total warranty liability, beginning balance	$ (109.9)
Warranty claims paid	(5.0)
Changes resulting from issuance of new warranties	7.4
Changes in estimates associated with pre-existing liabilities	(2.6)
Changes in foreign currency translation rates and other	0.0
Total warranty liability, ending balance	(108.8)
Australia, New Zealand and Asia Businesses [Member] | Discontinued Operations, Held-for-sale [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total warranty liability, ending balance	$ (0.9)