Financial Instruments and Risk Management (Effect Of Derivative Instruments on the Condensed Consolidated Statements of Operations Derivatives in Fair Value Hedging Relationships) (Details) (Fair Value Hedging Relationships, 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	$ 23.7	$ (8.0)	$ 47.8	$ (9.8)
Amount of (Loss) or Gain Recognized in Earnings on Hedged Items	(15.3)	11.4	(30.7)	16.7
Interest expense | Interest rate swaps
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Recognized in Earnings on Derivatives	23.7	(8.0)	47.8	(9.8)
Interest expense | 2016 Senior Notes (1.800% coupon)
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (Loss) or Gain Recognized in Earnings on Hedged Items	(0.9)	2.6	(0.9)	2.6
Interest expense | 2018 Senior Notes (6.000% coupon)
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (Loss) or Gain Recognized in Earnings on Hedged Items	0	8.8	1.1	14.1
Interest expense | 2023 Senior Notes (3.125% coupon)
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (Loss) or Gain Recognized in Earnings on Hedged Items	$ (14.4)	$ 0	$ (30.9)	$ 0