Financial Instruments Schedule of Gains and Losses of Derivative Financial Instruments Not Designated as Hedges (Details) (Currency Derivatives, Nondesignated [Member], USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Income	$ (14.3)	$ 22.6
Other, net [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Income	$ (14.3)	$ 22.6