Revenue - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Oct. 28, 2023	Oct. 29, 2022	Jul. 29, 2023
Disaggregation of Revenue [Line Items]
Allowance for future sales returns	$ 37		$ 39
Payment terms	30 days
Accounts receivable, net	$ 4,833		5,854
Deferred revenue	25,659		25,550
Revenue recognized	4,700
Total deferred sales commissions	1,200		1,100
Amortization of sales commissions, expense	158	$ 176
Software and Service Agreements
Disaggregation of Revenue [Line Items]
Contract assets, net of allowances	$ 1,700		$ 1,600