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Consolidated Statements of Operations (Parenthetical) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Statement [Abstract]
Earnings (loss) from discontinued operations, income taxes	$ 0.2	$ (2.6)	$ 1.7
Loss on sale of discontinued operations, income taxes	$ 0	$ 29.9	$ 0

Income tax expense or benefit attributable to Income or Loss from discontinued operations during the phase-out period.

Amount of tax expense or benefit on gain (loss), not previously recognized, resulting from the sale of a business component.