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Goodwill and Purchased Intangible Assets - Schedule of Amortization of Purchased Intangible Assets (Details) - USD ($) $ in Millions | 12 Months Ended
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Jul. 29, 2023 | Jul. 30, 2022 | Jul. 31, 2021
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Amortization of purchased intangible assets | $ 282 | $ 313 | $ 215
Cost of sales |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Amortization of purchased intangible assets | 649 | 749 | 716
Operating expenses |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Amortization of purchased intangible assets | 282 | 328 | 215
Total |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Amortization of purchased intangible assets | $ 931 | $ 1,077 | $ 931

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482686/350-30-45-2 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-2 + Details
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