Revenue - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Oct. 26, 2024	Oct. 28, 2023	Jul. 27, 2024
Disaggregation of Revenue [Line Items]
Allowance for future sales returns	$ 42		$ 37
Payment terms	30 days
Accounts receivable, net	$ 4,457		6,685
Deferred revenue	27,502		28,475
Amortization of sales commissions, expense	208	$ 158
Revenue recognized	5,300
Total deferred sales commissions	1,400		1,300
Software and Service Agreements
Disaggregation of Revenue [Line Items]
Contract assets, net of allowances	$ 2,900		$ 2,700