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Acquisitions and Divestitures - Summary of Allocation of Total Purchase Consideration (Details) $ in Millions | 12 Months Ended
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Jul. 30, 2022 USD ($) acquisition | Jul. 31, 2021 USD ($) acquisition | Jul. 25, 2020 USD ($) acquisition
Business Acquisition [Line Items] |  |  |
Number of business combinations (acquisition) | acquisition | 3 |  | 6
Purchase Consideration | $ 364 | $ 7,455 | $ 359
Net Tangible Assets Acquired (Liabilities Assumed) | 12 | 312 |
Purchased Intangible Assets | 20 | 2,914 |
Goodwill | $ 332 | 4,229 |
Acacia |  |  |
Business Acquisition [Line Items] |  |  |
Purchase Consideration |  | 4,983 |
Net Tangible Assets Acquired (Liabilities Assumed) |  | 442 |
Purchased Intangible Assets |  | 2,160 |
Goodwill |  | $ 2,381 |
Others |  |  |
Business Acquisition [Line Items] |  |  |
Number of business combinations (acquisition) | acquisition |  | 12 |
Purchase Consideration |  | $ 2,472 |
Net Tangible Assets Acquired (Liabilities Assumed) |  | (130) |
Purchased Intangible Assets |  | 754 |
Goodwill |  | $ 1,848 |

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