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Summary of Significant Accounting Policies - Additional Information (Details) - USD ($) $ in Millions | 12 Months Ended
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Jul. 29, 2023 | Jul. 30, 2022 | Jul. 31, 2021
Summary Of Significant Accounting Policies [Line Items] |  |  |
Average lease term | 4 years |  |
Financing receivable, threshold period past due | 31 days |  |
Financing receivable, threshold for not accruing interest | 120 days |  |
Depreciation and amortization expenses | $ 700 | $ 800 | $ 800
Allowance for future sales returns | 39 | 43 |
Advertising costs | $ 205 | $ 219 | $ 268
Minimum |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Loan receivables term | 1 year |  |
Channel partners revolving short-term financing payment term | 60 days |  |
Maximum |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Loan receivables term | 3 years |  |
Channel partners revolving short-term financing payment term | 90 days |  |

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- Definition Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 720 -SubTopic 35 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483406/720-35-50-1 + Details
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- Definition Amount of liability for consideration received or receivable from customer which is not included in transaction price, when consideration is expected to be refunded to customer. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 27 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479777/606-10-55-27 + Details
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- Definition Threshold period for when financing receivable is considered past due, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Excludes threshold period past due to write off as uncollectible. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 14 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-14 + Details
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