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Summary of Significant Accounting Policies - Additional Information (Details) - USD ($) $ in Millions | 12 Months Ended
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Jul. 27, 2024 | Jul. 29, 2023 | Jul. 30, 2022
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 | $ 700 | $ 800
Allowance for future sales returns | 37 | 39 |
Advertising costs | $ 210 | $ 205 | $ 219
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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