Risk Management (Summary Of Derivative Instruments And The Effect On The Condensed Consolidated Statements Of Operations) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	$ 0	$ (1)	$ 3
Gain (Loss) on Derivative Instruments
Gains (losses) reclassified from Accumulated other comprehensive loss into Net earnings (loss)	(1,678)	(1,808)	(1,795)
Foreign exchange contracts | Cost of sales
Gain (Loss) on Derivative Instruments
Gains (losses) reclassified from Accumulated other comprehensive loss into Net earnings (loss)	(1)	1	(1)
Foreign exchange contracts | Accumulated other comprehensive loss
Gain (Loss) on Derivative Instruments
Other comprehensive gains (losses) before reclassifications	0	(1)	3
Not Designated As Hedging Instruments
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	(4)	8	(14)
Not Designated As Hedging Instruments | Interest agreements | Other income (expense)
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	1	2	(1)
Not Designated As Hedging Instruments | Foreign exchange contracts | Other income (expense)
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	$ (5)	$ 6	$ (13)