Revenue - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Jul. 27, 2024	Jul. 29, 2023	Jul. 30, 2022
Disaggregation of Revenue [Line Items]
Payment terms	30 days
Accounts receivable, net	$ 6,685	$ 5,854
Deferred revenue	28,475	25,550
Revenue recognized	13,800
Total deferred sales commissions	1,300	1,100
Amortization of sales commissions, expense	742	723	$ 679
Software and Service Agreements
Disaggregation of Revenue [Line Items]
Contract assets, net of allowances	$ 2,700	$ 1,600