Balance Sheet and Other Details - Deferred Revenue (Details) - USD ($) $ in Millions	Oct. 29, 2022	Jul. 30, 2022
Disaggregation of Revenue [Line Items]
Total deferred revenue	$ 23,019	$ 23,264
Current	12,578	12,784
Noncurrent	10,441	10,480
Product
Disaggregation of Revenue [Line Items]
Total deferred revenue	10,404	10,427
Service
Disaggregation of Revenue [Line Items]
Total deferred revenue	$ 12,615	$ 12,837