Income Taxes (Deferred Tax Assets (Liabilities)) (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Gross deferred tax assets:
Warranties	$ 27.3	$ 36.3
Loss carryforwards (foreign, U.S. and state)	21.0	19.8
Post-retirement and pension benefits	23.3	33.9
Inventory reserves	7.5	9.6
Receivables allowance	3.5	4.5
Compensation liabilities	11.1	20.6
Deferred income	0.7	1.5
Insurance liabilities	5.1	6.5
Legal reserves	7.6	12.0
Tax credits, net of federal effect	21.3	18.4
Other	7.5	5.4
Total deferred tax assets	135.9	168.5
Valuation allowance	(24.9)	(17.1)
Total deferred tax assets, net of valuation allowance	111.0	151.4
Gross deferred tax liabilities:
Depreciation	(5.9)	(3.3)
Hedges	(3.6)	(3.2)
Intangibles	(4.9)	(4.9)
Other	(2.2)	(3.3)
Total deferred tax liabilities	(16.6)	(14.7)
Net deferred tax assets	$ 94.4	$ 136.7