Risk Management (Summary Of Derivative Instruments And The Effect On The Condensed Consolidated Statements Of Operations) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013
Gain (Loss) on Derivative Instruments
Gains (losses) reclassified from Accumulated other comprehensive loss into Net earnings	$ (400)	$ (435)	$ (751)	$ (840)
Foreign Exchange Contracts [Member] | Costs Of Sales [Member]
Gain (Loss) on Derivative Instruments
Gains (losses) reclassified from Accumulated other comprehensive loss into Net earnings	(1)	0	(1)	1
Not Designated As Hedging Instruments [Member]
Gain (Loss) on Derivative Instruments
Total derivatives not designated as hedging instruments	(1)	9	(2)	(8)
Not Designated As Hedging Instruments [Member] | Interest Rate Contracts [Member] | Other Income (Expense) [Member]
Gain (Loss) on Derivative Instruments
Total derivatives not designated as hedging instruments	0	1	0	1
Not Designated As Hedging Instruments [Member] | Foreign Exchange Contracts [Member] | Other Income (Expense) [Member]
Gain (Loss) on Derivative Instruments
Total derivatives not designated as hedging instruments	$ (1)	$ 8	$ (2)	$ (9)