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Commitments and Contingencies - Additional Information (Detail) - USD ($) | 12 Months Ended
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Apr. 30, 2021 | Apr. 24, 2020 | Apr. 26, 2019
Commitments and Contingencies Disclosure [Line Items] |  |  |
Purchase orders and other commitments | $ 800,000,000 |  |
Accrued purchase commitments with contract manufacturers | 15,000,000 | $ 6,000,000 |
Purchase orders and other commitments due in fiscal 2022 | 584,000,000 |  |
Sale of finance receivables | $ 102,000,000 | $ 59,000,000 | $ 87,000,000
Lawsuit commencement date | August 14, 2019 |  |
Lawsuit action domicile | United States District Court for the Northern District of California |  |
Name of defendant | NetApp and certain of our executive officers. |  |
Loss contingency, laws affected | The complaint alleges that the defendants violated Section 10(b) and 20(a) of the Securities Exchange Act of 1934, as amended, and SEC Rule 10b-5, by making materially false or misleading statements with respect to our financial guidance for fiscal 2020, as provided on May 22, 2019. |  |
Legal proceedings and claims | $ 0 |  |
Management estimation of loss contingency | Although management at present believes that the ultimate outcome of these proceedings, individually and in the aggregate, will not materially harm our financial position, results of operations, cash flows, or overall trends, legal proceedings are subject to inherent uncertainties, and unfavorable rulings or other events could occur. Unfavorable resolutions could include significant monetary damages. In addition, in matters for which injunctive relief or other conduct remedies are sought, unfavorable resolutions could include an injunction or other order prohibiting us from selling one or more products at all or in particular ways or requiring other remedies. An unfavorable outcome may result in a material adverse impact on our business, results of operations, financial position, and overall trends. |  |
Maximum |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |
Terms of recourse leases | 3 years |  |
Inventory |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |
Purchase orders and other commitments | $ 576,000,000 |  |
Other |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |
Purchase orders and other commitments | $ 224,000,000 |  |

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