Goodwill and Purchased Intangible Assets - Schedule of Goodwill by Reportable Segments (Details) $ in Millions	9 Months Ended
	Apr. 27, 2024 USD ($)
Goodwill [Roll Forward]
Beginning Balance	$ 38,535
Foreign Currency Translation and Other	(155)
Ending Balance	58,633
Splunk
Goodwill [Roll Forward]
Other Acquisitions	19,301
Other Acquisitions
Goodwill [Roll Forward]
Other Acquisitions	952
Americas
Goodwill [Roll Forward]
Beginning Balance	24,035
Foreign Currency Translation and Other	(96)
Ending Balance	36,152
Americas | Splunk
Goodwill [Roll Forward]
Other Acquisitions	11,619
Americas | Other Acquisitions
Goodwill [Roll Forward]
Other Acquisitions	594
EMEA
Goodwill [Roll Forward]
Beginning Balance	9,118
Foreign Currency Translation and Other	(37)
Ending Balance	14,277
EMEA | Splunk
Goodwill [Roll Forward]
Other Acquisitions	4,980
EMEA | Other Acquisitions
Goodwill [Roll Forward]
Other Acquisitions	216
APJC
Goodwill [Roll Forward]
Beginning Balance	5,382
Foreign Currency Translation and Other	(22)
Ending Balance	8,204
APJC | Splunk
Goodwill [Roll Forward]
Other Acquisitions	2,702
APJC | Other Acquisitions
Goodwill [Roll Forward]
Other Acquisitions	$ 142