Fair Value Measurements And Financial Instruments (Tables)

12 Months Ended

Dec. 29, 2012

Fair Value Disclosures [Abstract]

Summary Of Financial Assets Measured At Fair Value On A Recurring Basis

A summary of financial assets measured at fair value on a recurring basis at December 29, 2012 and December 31, 2011 is as follows (in millions):

	Balance Sheet Classification	December 29, 2012		Quoted Prices In Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Money-market securities	Cash and cash equivalents	$	964	$	964	$	—	$	—
Available-for-sale securities	Other current assets	41		41		—		—
Trading securities	Other assets	231		231		—		—
Total assets		$	1,236	$	1,236	$	—	$	—

	Balance Sheet Classification	December 31, 2011		Quoted Prices In Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Money-market securities	Cash and cash equivalents	$	745	$	745	$	—	$	—
Available-for-sale securities	Other current assets	39		39		—		—
Trading securities	Other assets	205		205		—		—
Interest rate swap	Other assets	18		—		18		—
Total assets		$	1,007	$	989	$	18	$	—