Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate			35.00%
Continuing operations tax benefit	$ (20.9)	$ (16.4)	$ (36.1)	$ (14.0)
Discontinued operations tax benefit	(4.0)	(0.5)	(5.6)	(1.4)
Total tax benefit	$ (24.9)	$ (16.9)	$ (41.7)	$ (15.4)
Continuing operations effective tax rate	26.00%	35.00%	24.00%	32.00%
Discontinued operation effective tax rate	39.00%	39.00%	39.00%	39.00%
Total effective tax rate	28.00%	35.00%	25.00%	32.00%

Tax effect allocated to a disposal group that is classified as a component of the entity reported as a separate component of income before extraordinary items. Includes the tax effects of the following: income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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+ Details