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Revenue - Additional Information (Details) - USD ($) $ in Millions | 12 Months Ended
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Jul. 27, 2024 | Jul. 29, 2023 | Jul. 30, 2022
Disaggregation of Revenue [Line Items] |  |  |
Payment terms | 30 days |  |
Accounts receivable, net | $ 6,685 | $ 5,854 |
Deferred revenue | 28,475 | 25,550 |
Revenue recognized | 13,800 |  |
Total deferred sales commissions | 1,300 | 1,100 |
Amortization of sales commissions, expense | 742 | 723 | $ 679
Software and Service Agreements |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Contract assets, net of allowances | $ 2,700 | $ 1,600 |

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