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]	AOCI Attributable to Parent [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)	292				292		0
Other comprehensive income (loss)	(2)					(3)	1
Dividends	$ (107)				(107)
Dividends per share	$ 0.35
Treasury stock purchased, shares			(2)
Treasury stock purchased, value	$ (112)		$ (112)
Treasury stock issued under management incentive and stock option plans, shares			1
Treasury stock issued under management incentive and stock option plans, value	(6)		$ 31	(37)
Capital stock, shares at Oct. 30, 2016		323
Treasury stock, shares at Oct. 30, 2016			(16)
Balance, value at Oct. 30, 2016	1,598	$ 12	$ (745)	317	2,112	(107)	9
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
Net earnings (loss)	275				275		0
Other comprehensive income (loss)	(32)					(32)	0
Dividends	$ (105)				(105)
Dividends per share	$ 0.35
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	(8)		$ 46	(54)
Capital stock, shares at Oct. 29, 2017		323
Treasury stock, shares at Oct. 29, 2017			(22)
Balance, value at Oct. 29, 2017	$ 1,689	$ 12	$ (1,106)	$ 305	$ 2,555	$ (85)	$ 8