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
	Mar. 29, 2014	Mar. 30, 2013
Gain (Loss) on Derivative Instruments
Gains reclassified from Accumulated other comprehensive loss into Net earnings	$ (583)	$ (651)
Foreign Exchange Contracts [Member] | Costs Of Sales [Member]
Gain (Loss) on Derivative Instruments
Gains reclassified from Accumulated other comprehensive loss into Net earnings	0	1
Not Designated As Hedging Instruments [Member]
Gain (Loss) on Derivative Instruments
Total derivatives not designated as hedging instruments	(1)	(17)
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)	$ (17)