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. 31, 2012	Apr. 02, 2011
Gain (Loss) on Derivative Instruments
Derivatives not designated as hedging instruments	$ (8)	$ (9)
Interest Rate Contracts [Member] | Other Income [Member]
Gain (Loss) on Derivative Instruments
Derivatives not designated as hedging instruments	(4)	(2)
Foreign Exchange Contracts [Member] | Other Income [Member]
Gain (Loss) on Derivative Instruments
Derivatives not designated as hedging instruments	(4)	(7)
Foreign Exchange Contracts [Member] | Cost Of Sales [Member]
Gain (Loss) on Derivative Instruments
Gain (loss) reclassified from Accumulated other comprehensive loss into Net earnings (effective portion)	(1)	1
Foreign Exchange Contracts [Member] | Accumulated Other Comprehensive Loss [Member]
Gain (Loss) on Derivative Instruments
Gain recognized in Accumulated other comprehensive loss	$ 3	$ 3