Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Effective Income Tax Rate [Abstract]
Effective income tax rate, continuing operations	35.00%	36.90%	38.70%	40.90%
Income tax of equity in earnings of affiliates	$ (3.5)	$ (5.2)	$ (14.8)	$ 18.7