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Commitments And Contingencies (Schedule Of Product Warranty Liability) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 30, 2013	Mar. 31, 2012
Commitments and Contingencies Disclosure [Abstract]
Balance at beginning of period	$ 38	$ 36
Warranty expense recognized	2	2
Warranty credits issued	(3)	(1)
Balance at end of period	$ 37	$ 37

- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers.

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