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Segment Information and Major Customers - Summary of Reportable Segments (Details) - USD ($) $ in Millions	12 Months Ended
	Jul. 29, 2023	Jul. 30, 2022	Jul. 31, 2021
Segment Reporting Information [Line Items]
Total revenue	$ 56,998	$ 51,557	$ 49,818
Gross margin	35,753	32,248	31,894
Operating Segments
Segment Reporting Information [Line Items]
Gross margin	36,788	33,326	32,914
Operating Segments | Americas
Segment Reporting Information [Line Items]
Total revenue	33,447	29,814	29,161
Gross margin	21,350	19,117	19,499
Operating Segments | EMEA
Segment Reporting Information [Line Items]
Total revenue	15,135	13,715	12,951
Gross margin	10,016	8,969	8,466
Operating Segments | APJC
Segment Reporting Information [Line Items]
Total revenue	8,417	8,027	7,706
Gross margin	5,424	5,241	4,949
Unallocated corporate items
Segment Reporting Information [Line Items]
Gross margin	$ (1,035)	$ (1,078)	$ (1,020)

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