Contingencies (Details) (USD $) In Millions, unless otherwise specified	1 Months Ended	12 Months Ended			24 Months Ended			12 Months Ended			12 Months Ended
	Jul. 31, 2010	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2008	Feb. 28, 2011	Nov. 30, 2010	Dec. 31, 2009 UAW Litigation [Member]	Dec. 31, 2012 Estimated future settlement of existing claims [Member]	Dec. 31, 2011 Estimated future settlement of existing claims [Member]	Dec. 31, 2012 Asbestos Issue [Member]	Dec. 31, 2011 Asbestos Issue [Member]
Accrual for Environmental Loss Contingencies Disclosure [Abstract]
Waste disposal sites with potential liability under the Comprehensive Environmental Response, Compensation and Liability Act		32
Accrual for indicated environmental liabilities		$ 3.9
Number of plaintiffs					340
Number of claimants settled and dismissed	2,700										2,400	1,800
Amount agreed to pay against settlement of unfiled claimants			28
First settlement payment made							13.9
Final settlement payment made						13.9
Contingencies [Abstract]
Loss as a result of the September 2008 DTP ruling		0	29.1	0				4.0
Number of pending claims											16,000	16,000
Payment being made to a claimant by or on behalf of the Company											308	288
Payment being made to a claimant by or on behalf of the company, percentage											13.00%	16.00%
Company paid in defense and indemnity in advance of insurers reimbursement											235.8
Cash and notes received from insurers											124.8
Outstanding balance to be fully recovered											111.0	109.8
Payments for Legal Settlements	40.7
Outstanding balance expected to recovered in next twelve months											20
Assets
Prepayments and other current assets		0	28.8						0	28.8
Other non-current assets		85.6	32.9						85.6	32.9
Total insurance assets									85.6	61.7
Liabilities [Abstract]
Accounts payable and accrued expenses		36.5	28.8						36.5	28.8
Other non-current liabilities		49.1	32.9						49.1	32.9
Total accrued liabilities									$ 85.6	$ 61.7