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. 02, 2009	$ 731	$ 20	$ (7,194)	$ 332	$ 8,288	$ (718)	$ 3
Balance, shares at Aug. 02, 2009		542	(199)
Comprehensive income (loss)
Net earnings (loss)	844				844		0
Foreign currency translation adjustments, net of tax	39					39	0
Foreign currency translation adjustment, tax						(8)
Cash-flow hedges, net of tax	2					2
Cash-flow hedges, tax						1
Pension and postretirement benefits, net of tax	(59)					(59)
Pension and postretirement benefits, tax						(47)
Other comprehensive income (loss)	(18)					(18)	0
Total comprehensive income	826
Dividends	(372)				(372)
Common Stock, Dividends, Per Share, Declared	$ 1.075
Treasury stock purchased, shares			14
Treasury stock purchased, value	(472)		(472)
Treasury stock issued under management incentive and stock option plans, shares			7
Treasury stock issued under management incentive and stock option plans, value	216		207	9
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	8						8
Comprehensive income (loss)
Net earnings (loss)	802				805		(3)
Foreign currency translation adjustments, net of tax	264					264	0
Foreign currency translation adjustment, tax						5
Cash-flow hedges, net of tax	(2)					(2)
Cash-flow hedges, tax						(1)
Pension and postretirement benefits, net of tax	47					47
Pension and postretirement benefits, tax						30
Other comprehensive income (loss)	309					309	0
Total comprehensive income	1,111
Dividends	(380)				(380)
Common Stock, Dividends, Per Share, Declared	$ 1.145
Treasury stock purchased, shares			21
Treasury stock purchased, value	(728)		(728)
Treasury stock issued under management incentive and stock option plans, shares			5
Treasury stock issued under management incentive and stock option plans, value	156		166	(10)
Balance, value at Jul. 31, 2011	1,096	20	(8,021)	331	9,185	(427)	8
Balance, shares at Jul. 31, 2011		542	(222)
Purchase of investments in noncontrolling interest	2						2
Comprehensive income (loss)
Net earnings (loss)	764				774		(10)
Foreign currency translation adjustments, net of tax	(135)					(135)	0
Foreign currency translation adjustment, tax						8
Cash-flow hedges, net of tax	10					10
Cash-flow hedges, tax						5
Pension and postretirement benefits, net of tax	(224)					(224)
Pension and postretirement benefits, tax						(122)
Other comprehensive income (loss)	(349)					(349)	0
Total comprehensive income	415
Dividends	(375)				(375)
Common Stock, Dividends, Per Share, Declared	$ 1.16
Treasury stock purchased, shares			13
Treasury stock purchased, value	(412)		(412)
Treasury stock issued under management incentive and stock option plans, shares			5
Treasury stock issued under management incentive and stock option plans, value	172		174	(2)
Balance, value at Jul. 29, 2012	$ 898	$ 20	$ (8,259)	$ 329	$ 9,584	$ (776)	$ 0
Balance, shares at Jul. 29, 2012		542	(230)