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Goodwill and Purchased Intangible Assets - Schedule of Amortization of Purchased Intangible Assets (Details) - USD ($) $ in Millions | 3 Months Ended
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Oct. 25, 2025 | Oct. 26, 2024
Intangible Asset, Acquired, Finite-Lived [Line Items] |  |
Amortization of purchased intangible assets | $ 231 | $ 265
Total |  |
Intangible Asset, Acquired, Finite-Lived [Line Items] |  |
Amortization of purchased intangible assets | 471 | 590
Cost of sales |  |
Intangible Asset, Acquired, Finite-Lived [Line Items] |  |
Amortization of purchased intangible assets | 240 | 325
Operating expenses |  |
Intangible Asset, Acquired, Finite-Lived [Line Items] |  |
Amortization of purchased intangible assets | $ 231 | $ 265

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