Commitments And Contingencies (Schedule Of Changes In Carrying Amount Of Warranty Liabilities) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Apr. 01, 2012		Apr. 03, 2011
Commitments And Contingencies [Abstract]
Beginning balance	$ 293		$ 260
Warranty expense	19		12
Payments	(15)		(13)
Adjustments	(5)	[1]	(1)	[1]
Ending balance	$ 292		$ 258

[1] Includes reclassifications and foreign exchange translation adjustments.