Income Taxes (Details 3) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Components of Deferred Tax Assets and Liabilities [Abstract]
Deferred Tax Assets, Other postretirement liabilities	$ 5.6	$ 26.6
Deferred tax assets, product warranty and self-insured risk	2.7	2.8
Deferred Tax Assets, Tax Carryforwards	305.2	393.6
Deferred Tax Assets, Other Accruals and miscellaneous	26.9	14.1
Deferred Tax Assets, Gross	340.4	437.1
Deferred Tax Assets, Valuation Allowance	(307.3)	(395.8)
Deferred Tax Assets, Net of Valuation Allowance	33.1	41.3
Deferred Tax Liabilities, Property, Plant and Equipment	14.0	21.0
Deferred tax liabilities, Pension	13.9	15.5
Deferred Tax Liabilities, Unrealized gains on securities	1.6	3.4
Deferred Tax Liabilities, Other	3.5	1.3
Deferred Tax Liabilities, Gross	33.0	41.2
Net deferred tax assets (liabilities)	0.1	0.1
Deferred Tax Asset Current and NonCurrent	0.3	0.1
Deferred Tax Liability, Current and NonCurrent	$ 0.2	$ 0