Financial Instruments and Risk Management (Effect Of Derivative Instruments on the Condensed Consolidated Statements of Operations, Derivatives Not Designated as Hedging Instruments) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Recognized in Earnings on Derivatives	$ 3.0	$ 7.4	$ 7.6	$ (3.8)
Foreign currency forward contracts | Other expense, net
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Recognized in Earnings on Derivatives	3.0	7.4	7.6	(3.8)
Cash conversion feature of Cash Convertible Notes | Other expense, net
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Recognized in Earnings on Derivatives	(115.2)	(88.1)	(347.0)	(143.4)
Purchased cash convertible note hedge | Other expense, net
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Recognized in Earnings on Derivatives	$ 115.2	$ 88.1	$ 347.0	$ 143.4