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Supplemental Financial Information - Additional Information (Detail) - USD ($) $ in Millions |  | 9 Months Ended |
--- | --- | --- | ---
Aug. 29, 2019 | Jan. 24, 2020 | Jan. 25, 2019 | Apr. 26, 2019
Property Plant And Equipment [Line Items] |  |  |  |
Net book value |  | $ 740 |  | $ 759
Cash proceeds from properties sold |  | $ 96 | $ 0 |
Lenovo NetApp Technology Limited (“LNTL”) |  |  |  |
Property Plant And Equipment [Line Items] |  |  |  |
Non-controlling equity interest, ownership percentage |  | 49.00% |  |
Other non current assets |  | $ 78 |  | $ 78
Properties Sold |  |  |  |
Property Plant And Equipment [Line Items] |  |  |  |
Cash proceeds from properties sold | $ 96 |  |  |
Gain on sale of properties, net of direct selling costs | 38 |  |  |
Other Current Assets |  |  |  |
Property Plant And Equipment [Line Items] |  |  |  |
Net book value | $ 53 |  |  |

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