Other Expense, Net (Schedule Of Other Expense, Net) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 30, 2013	Mar. 31, 2012
Other Nonoperating Income (Expense) [Abstract]
Interest income	$ (1)	$ (1)
Interest expense	19	18
Other	30	6
Total other expense, net	$ 48	$ 23