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]	Cumulative Effect, Period of Adoption, Adjustment [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Earnings Retained In The Business [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Accumulated Other Comprehensive Income (Loss) [Member]
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
Balance, value (Accounting Standards Update 2014-09 [Member]) at Jul. 29, 2018	[1]								$ (8)	$ (8)
Balance, value (Accounting Standards Update 2018-02 [Member]) at Jul. 29, 2018	[1]								$ 0	$ (9)	$ 9
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
Net earnings (loss)		1,628				1,628		0
Noncontrolling Interest, Period Increase (Decrease)		(4)						(4)
Other comprehensive income (loss)		189					188	1
Dividends		$ (428)				(428)
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				1
Treasury stock issued under management incentive and stock option plans, value		72		$ 53	22	(3)
Capital stock, shares at Aug. 02, 2020			323
Treasury Stock, Shares at Aug. 02, 2020				(21)
Balance, value at Aug. 02, 2020		$ 2,569	$ 12	$ (1,023)	$ 394	$ 3,190	$ (10)	$ 6

[1] See Note 2 for additional detail.