Supplemental Financial Statement Data (Schedule Of Statement Of Earnings) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jul. 29, 2012		Jul. 31, 2011		Aug. 01, 2010
Foreign exchange (gains)/losses	$ (3)		$ 5		$ 1
Amortization/impairment of intangible and other assets	5	[1]	3	[1]	0	[1]
Business Combination, Acquisition Related Costs	5
Other	7		5		3
Other expenses / (income)	14		13		4
Advertising Expense	506	[2]	492	[2]	515	[2]
Interest expense	116		123		116
Less: Interest capitalized	(2)		(1)		(4)
Interest Expense	114		122		112
Fair Value, Inputs, Level 3 [Member]
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)	$ 3		$ 3

[1] A $3 impairment charge was recognized related to European trademarks in both 2012 and 2011. See also Note

[2] Included in Marketing and selling expenses.