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Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2012

Changes in Company's Warranty Liabilities

Changes in the Company’s warranty liabilities for the years ended December 31, 2012 and 2011 were as follows ($ in millions):

		2012				2011
Balance at January 1		$	6.7			$	5.5
Provisions to expense			5.8				9.7
Actual costs incurred			(5.7	)			(8.5	)
Balance at December 31		$	6.8			$	6.7

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- Definition

Tabular disclosure of the changes in the guarantor's aggregate product warranty liability, including the beginning balance of the aggregate product warranty liability, the aggregate reductions in that liability for payments made (in cash or in kind) under the warranty, the aggregate changes in the liability for accruals related to product warranties issued during the reporting period, the aggregate changes in the liability for accruals related to preexisting warranties (including adjustments related to changes in estimates), and the ending balance of the aggregate product warranty liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 460

-SubTopic 10

-Section 50

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration