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Supplemental Financial Information - Summary of Components of Deferred Revenue and Financed Unearned Services Revenue (Detail) - USD ($) $ in Millions | Jan. 24, 2025 | Apr. 26, 2024
--- | --- | ---
Contract With Customer Liability [Line Items] |  |
Total | $ 4,122 | $ 4,234
Short-term | 2,070 | 2,176
Long-term | 2,052 | 2,058
Deferred product revenue |  |
Contract With Customer Liability [Line Items] |  |
Total | 54 | 59
Deferred services revenue |  |
Contract With Customer Liability [Line Items] |  |
Total | 4,028 | 4,123
Financed unearned services revenue |  |
Contract With Customer Liability [Line Items] |  |
Total | $ 40 | $ 52

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