Segment Information and Major Customers - Summary of Reportable Segments (Details) - USD ($) $ in Millions	3 Months Ended
	Oct. 29, 2022	Oct. 30, 2021
Segment Reporting Information [Line Items]
Revenue	$ 13,632	$ 12,900
Gross margin	8,346	8,053
Operating segments
Segment Reporting Information [Line Items]
Gross margin	8,582	8,321
Operating segments | Americas
Segment Reporting Information [Line Items]
Revenue	7,914	7,561
Gross margin	4,984	4,875
Operating segments | EMEA
Segment Reporting Information [Line Items]
Revenue	3,675	3,303
Gross margin	2,325	2,128
Operating segments | APJC
Segment Reporting Information [Line Items]
Revenue	2,043	2,036
Gross margin	1,274	1,317
Unallocated corporate items
Segment Reporting Information [Line Items]
Gross margin	$ (236)	$ (268)