Consolidated Statements Of Equity (USD $) In Millions, except Per Share data, unless otherwise specified	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 Aug. 01, 2010	$ 929	$ 20	$ (7,459)	$ 341	$ 8,760	$ (736)	$ 3
Balance, shares at Aug. 01, 2010		542	(206)
Purchase of investments in noncontrolling interest	7						7
Comprehensive income (loss)
Net earnings (loss)	704				705		(1)
Foreign currency translation adjustments, net of tax	278					278	0
Cash-flow hedges, net of tax	(3)					(3)
Pension and postretirement benefits, net of tax	28					28
Other comprehensive income (loss)	303					303	0
Total comprehensive income	1,007
Dividends	(285)				(285)
Common Stock, Dividends, Per Share, Declared	$ 0.855
Treasury stock purchased, shares			(20)
Treasury stock purchased, value	(696)		(696)
Treasury stock issued under management incentive and stock option plans, shares			3
Treasury stock issued under management incentive and stock option plans, value	109		115	(6)
Balance, value at May. 01, 2011	1,071	20	(8,040)	335	9,180	(433)	9
Balance, shares at May. 01, 2011		542	(223)
Balance, value at Jul. 31, 2011	1,096	20	(8,021)	331	9,185	(427)	8
Balance, shares at Jul. 31, 2011		542	(222)
Comprehensive income (loss)
Net earnings (loss)	639				647		(8)
Foreign currency translation adjustments, net of tax	(108)					(108)	0
Cash-flow hedges, net of tax	7					7
Pension and postretirement benefits, net of tax	43					43
Other comprehensive income (loss)	(58)					(58)	0
Total comprehensive income	581
Dividends	(282)				(282)
Common Stock, Dividends, Per Share, Declared	$ 0.87
Treasury stock purchased, shares			(8)
Treasury stock purchased, value	(272)		(272)
Treasury stock issued under management incentive and stock option plans, shares			4
Treasury stock issued under management incentive and stock option plans, value	149		149	0
Balance, value at Apr. 29, 2012	$ 1,272	$ 20	$ (8,144)	$ 331	$ 9,550	$ (485)	$ 0
Balance, shares at Apr. 29, 2012		542	(226)