Accumulated Other Comprehensive Income (Loss) (Schedule of amounts reclassified from AOCI) (Details) - USD ($) $ in Millions		3 Months Ended	12 Months Ended
		May 02, 2021	Jul. 31, 2022	Aug. 01, 2021	Aug. 02, 2020
Accumulated Other Comprehensive Income (Loss) [Line Items]
Cost of Goods and Services Sold			$ (5,935)	$ (5,665)	$ (5,692)
Other Nonoperating Income (Expense)			(21)	254	(221)
Earnings (loss) from discontinued operations		$ 6	0	(6)	1,036
Interest Expense	[1]		(189)	(210)	(345)
Taxes on earnings			(218)	(328)	(174)
Net Income (Loss) Attributable to Parent			757	1,002	1,628
Accumulated Translation Adjustment [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Nonoperating Income (Expense)			0	0	(23)
Earnings (loss) from discontinued operations			0	0	(183)
Income (Loss), Including Portion Attributable to Noncontrolling Interest, before Tax			0	0	(206)
Taxes on earnings			0	0	(4)
Net Income (Loss) Attributable to Parent			0	0	(210)
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Cost of Goods and Services Sold			13	(6)	2
Other Nonoperating Income (Expense)				(1)
Earnings (loss) from discontinued operations					(1)
Interest Expense			(1)	(1)	(1)
Income (Loss), Including Portion Attributable to Noncontrolling Interest, before Tax			12	(8)	0
Taxes on earnings			(2)	1	0
Net Income (Loss) Attributable to Parent			10	(7)	0
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Commodity Derivative Contracts [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Cost of Goods and Services Sold			14	0	0
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Foreign Exchange Contract [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Cost of Goods and Services Sold			(1)	(6)	2
Other Nonoperating Income (Expense)			0	(1)	0
Earnings (loss) from discontinued operations			0	0	(1)
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Interest Rate Contract [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Interest Expense			(1)	(1)	(1)
Accumulated Defined Benefit Plans Adjustment, Net Prior Service Attributable to Parent [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Nonoperating Income (Expense)			1	5	28
Taxes on earnings			0	(1)	(6)
Net Income (Loss) Attributable to Parent			$ 1	$ 4	$ 22

[1] In 2022, we recognized a loss of $4 million (including $3 million of premium and other costs) on the extinguishment of debt. In 2020, we recognized a loss of $75 million (including $65 million of premium, fees and other costs paid with the tender offers and unamortized debt issuance costs). See Note 12 for additional information.