Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Jun. 30, 2013	Sep. 30, 2013	Sep. 30, 2012
Effective income tax rate			33.80%	33.80%
Current Taxes Payable, Conversion of Debt		$ 52.7
Adjustment to Additional Paid-In Capital, Conversion of Debt		34.5
Taxes Paid, Conversion of Debt	40
Unrecognized tax benefits	141.5		141.5
Unrecognized tax benefits that would impact effective tax rate	$ 62.8		$ 62.8