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 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 acquired		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
Cumulative Effect of New Accounting Principle in Period of Adoption | Accounting Standards Update 2014-09 [Member]	[1]	(8)				(8)
Cumulative Effect of New Accounting Principle in Period of Adoption | Accounting Standards Update 2018-02 [Member]	[1]	0				(9)	9	[2]
Net earnings (loss)		211				211			0
Other comprehensive income (loss)		(89)					(89)		0
Dividends		$ (425)				(425)
Dividends per share		$ 1.40
Treasury stock purchased, shares				0
Treasury stock purchased, value		$ 0		$ 0
Treasury stock issued under management incentive and stock option plans, shares				0
Treasury stock issued under management incentive and stock option plans, value		50		$ 27	23
Capital stock, shares at Jul. 28, 2019			323
Treasury Stock, Shares at Jul. 28, 2019				(22)
Balance, value at Jul. 28, 2019		$ 1,112	$ 12	$ (1,076)	$ 372	$ 1,993	$ (198)		$ 9

[1] See Note 2 for additional detail.

[2] Reflects the adoption of the FASB guidance on stranded tax effects. See Note 2 for additional information.