Warranties (Tables)

6 Months Ended

Jun. 30, 2011

Warranties (Tables) [Abstract]

Changes in the accruals for warranties

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2011			2010			2011			2010
				(in millions)
Beginning balance	$	12.7		$	19.6		$	13.2		$	19.6
Warranty costs incurred		(1.4	)		(1.3	)		(2.7	)		(2.2	)
Warranty originations and revisions		0.9			1.3			2.5			2.9
Warranty expirations		(0.2	)		(1.0	)		(1.0	)		(1.7	)
Ending balance	$	12.0		$	18.6		$	12.0		$	18.6