Income Taxes (Tables)

6 Months Ended

Jun. 30, 2011

Income Taxes [Abstract]

Net Deferred Taxes Recognized in the Balance Sheet

	June			December
	30, 2011			31, 2010
	(in millions)
Other current assets	$	115.2		$	76.0
Other noncurrent assets		—			42.1
Other long-term liabilities		(156.9	)		—
Net deferred tax assets (liabilities)	$	(41.7	)	$	118.1