Segment Information and Major Customers - Summary of Reportable Segments (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Apr. 27, 2024	Apr. 29, 2023	Apr. 27, 2024	Apr. 29, 2023
Segment Reporting Information [Line Items]
Revenue	$ 12,702	$ 14,571	$ 40,161	$ 41,795
Gross margin	8,273	9,232	26,047	26,005
Operating segments
Segment Reporting Information [Line Items]
Gross margin	8,673	9,495	27,046	26,764
Operating segments | Americas
Segment Reporting Information [Line Items]
Revenue	7,372	8,634	23,904	24,372
Gross margin	5,006	5,545	15,906	15,449
Operating segments | EMEA
Segment Reporting Information [Line Items]
Revenue	3,458	3,806	10,606	11,209
Gross margin	2,406	2,536	7,324	7,330
Operating segments | APJC
Segment Reporting Information [Line Items]
Revenue	1,873	2,131	5,652	6,214
Gross margin	1,262	1,415	3,816	3,986
Unallocated corporate items
Segment Reporting Information [Line Items]
Gross margin	$ (400)	$ (263)	$ (999)	$ (759)