Financial Instruments (Effect Of Derivative Instruments On Consolidated Financial Statements) (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
Derivative Instruments, Gain (Loss)
Derivative Instruments, Gain Reclassified from Accumulated OCI into Income, Effective Portion	$ (3.7)		$ 2.0
Operating Expense [Member]
Derivative Instruments, Gain (Loss)
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	(13.5)	14.0	(53.0)	30.0
Derivative Instruments, Gain Reclassified from Accumulated OCI into Income, Effective Portion	$ (3.7)	$ 4.3	$ 2.0	$ 10.0