Consolidated Statements of Equity - USD ($) shares in Millions, $ in Millions	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]
Capital stock, shares at Aug. 02, 2015		323
Treasury Stock, Shares at Aug. 02, 2015			(13)
Balance, value at Aug. 02, 2015	$ 1,377	$ 12	$ (556)	$ 339	$ 1,754	$ (168)	$ (4)
Contribution from noncontrolling interest	9						9
Net earnings (loss)	563				563		0
Other comprehensive income (loss)	67					64	3
Dividends	$ (390)				(390)
Dividends per share	$ 1.248
Treasury stock purchased, shares			(3)
Treasury stock purchased, value	$ (143)		$ (143)
Treasury stock issued under management incentive and stock option plans, shares			1
Treasury stock issued under management incentive and stock option plans, value	50		$ 35	15
Capital stock, shares at Jul. 31, 2016		323
Treasury Stock, Shares at Jul. 31, 2016			(15)
Balance, value at Jul. 31, 2016	1,533	$ 12	$ (664)	354	1,927	(104)	8
Net earnings (loss)	887				887		0
Other comprehensive income (loss)	51					51	0
Dividends	$ (429)				(429)
Dividends per share	$ 1.40
Treasury stock purchased, shares			(8)
Treasury stock purchased, value	$ (437)		$ (437)
Treasury stock issued under management incentive and stock option plans, shares			1
Treasury stock issued under management incentive and stock option plans, value	40		$ 35	5
Capital stock, shares at Jul. 30, 2017		323
Treasury Stock, Shares at Jul. 30, 2017			(22)
Balance, value at Jul. 30, 2017	1,645	$ 12	$ (1,066)	359	2,385	(53)	8
Noncontrolling Interest, Increase from Business Combination	47						47
Repurchases of noncontrolling interest	(47)						(47)
Net earnings (loss)	261				261		0
Other comprehensive income (loss)	(64)					(65)	1
Dividends	$ (422)				(422)
Dividends per share	$ 1.40
Treasury stock purchased, shares			(2)
Treasury stock purchased, value	$ (86)		$ (86)
Treasury stock issued under management incentive and stock option plans, shares			2
Treasury stock issued under management incentive and stock option plans, value	39		$ 49	(10)
Capital stock, shares at Jul. 29, 2018		323
Treasury Stock, Shares at Jul. 29, 2018			(22)
Balance, value at Jul. 29, 2018	$ 1,373	$ 12	$ (1,103)	$ 349	$ 2,224	$ (118)	$ 9