Balance Sheet and Other Details - Deferred Revenue (Details) - USD ($) $ in Millions	Oct. 28, 2023	Jul. 29, 2023
Disaggregation of Revenue [Line Items]
Total deferred revenue	$ 25,659	$ 25,550
Current	13,812	13,908
Noncurrent	11,847	11,642
Product
Disaggregation of Revenue [Line Items]
Total deferred revenue	11,689	11,505
Service
Disaggregation of Revenue [Line Items]
Total deferred revenue	$ 13,970	$ 14,045