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. 30, 2013	Mar. 31, 2012
Foreign Exchange Contracts [Member] | Costs Of Sales [Member]
Gain (Loss) on Derivative Instruments
Gain (loss) reclassified from Accumulated other comprehensive loss into Net earnings	$ 1	$ (1)
Foreign Exchange Contracts [Member] | Accumulated Other Comprehensive Loss [Member]
Gain (Loss) on Derivative Instruments
Gain recognized in Accumulated other comprehensive loss	0	3
Not Designated As Hedging Instruments [Member]
Gain (Loss) on Derivative Instruments
Total derivatives not designated as hedging instruments	(17)	(4)
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	0
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	$ (17)	$ (4)