Revenue - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Jul. 26, 2025	Jul. 27, 2024	Jul. 29, 2023
Disaggregation of Revenue [Line Items]
Payment terms	30 days
Accounts receivable, net	$ 6,701	$ 6,685
Deferred revenue	28,779	28,475
Revenue recognized	16,100
Total deferred sales commissions	1,500	1,300
Amortization of sales commissions, expense	957	742	$ 723
Software and Service Agreements
Disaggregation of Revenue [Line Items]
Contract assets, net of allowances	3,200	2,700
Contract assets, net of allowance, current	$ 1,700	$ 1,400