Consolidated Statements Of Equity (USD $) In Millions, except Share data	Total	Capital Stock Issued [Member]	Capital Stock In Treasury [Member]	Additional Paid-In Capital [Member]	Earnings Retained In The Business [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Noncontrolling Interests [Member]
Balance, value at Jul. 31, 2011	$ 1,096	$ 20	$ (8,021)	$ 331	$ 9,185	$ (427)	$ 8
Balance, shares at Jul. 31, 2011		542,000,000	(222,000,000)
Net earnings (loss)	263				265		(2)
Other comprehensive income (loss)	(39)					(39)	0
Dividends	(95)				(95)
Dividends	$ 0.29
Treasury stock purchased, shares			(3,000,000)
Treasury stock purchased, value	(85)		(85)
Treasury stock issued under management incentive and stock option plans, shares			1,000,000
Treasury stock issued under management incentive and stock option plans, value	27		45	(18)
Balance, value at Oct. 30, 2011	1,167	20	(8,061)	313	9,355	(466)	6
Balance, shares at Oct. 30, 2011		542,000,000	(224,000,000)
Balance, value at Jul. 29, 2012	898	20	(8,259)	329	9,584	(776)	0
Balance, shares at Jul. 29, 2012		542,000,000	(230,000,000)
Net earnings (loss)	243				245		(2)
Other comprehensive income (loss)	31					31	0
Dividends	(93)				(93)
Dividends	$ 0.29
Treasury stock purchased, shares			0
Treasury stock purchased, value	(17)		(17)
Treasury stock issued under management incentive and stock option plans, shares			1,000,000
Treasury stock issued under management incentive and stock option plans, value	35		53	(18)
Balance, value at Oct. 28, 2012	$ 1,097	$ 20	$ (8,223)	$ 311	$ 9,736	$ (745)	$ (2)
Balance, shares at Oct. 28, 2012		542,000,000	(229,000,000)