Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2012	Sep. 30, 2011
Income Tax Disclosure [Abstract]
Effective income tax rate, continuing operations		31.00%	24.00%
Tax benefit (expense) associated with disposal activities and restructuring	$ (3.5)	$ 2.0
Tax expense associated with disposal	11.2
Tax benefit associated with restructuring	7.7
Tax impact of other tax adjustments		15.9	6.2
Tax expense associated with tax settlements		8.2
Repatriation of foreign earnings		7.7
Tax impact of patent infringement settlement			$ 11.0