Other Income (Expense), Net (Schedule Of Other Income (Expense)) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jul. 02, 2011	Jun. 30, 2012	Jul. 02, 2011
Other Nonoperating Income (Expense) [Abstract]
Interest income	$ 1	$ 1	$ 2	$ 2
Interest expense	(19)	(17)	(37)	(35)
Other	(7)	(9)	(13)	(19)
Total other income (expense), net	$ (25)	$ (25)	$ (48)	$ (52)