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Revenue - Summary of Components of Deferred Revenue and Financed Unearned Services Revenue (Detail) - USD ($) $ in Millions | Apr. 25, 2025 | Apr. 26, 2024
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Contract With Customer Liability [Line Items] |  |
Deferred revenue and financed unearned services revenue | $ 4,536 | $ 4,234
Short-term | 2,279 | 2,176
Long-term | 2,257 | 2,058
Deferred product revenue |  |
Contract With Customer Liability [Line Items] |  |
Deferred revenue and financed unearned services revenue | 66 | 59
Deferred services revenue |  |
Contract With Customer Liability [Line Items] |  |
Deferred revenue and financed unearned services revenue | 4,428 | 4,123
Financed unearned services revenue |  |
Contract With Customer Liability [Line Items] |  |
Deferred revenue and financed unearned services revenue | $ 42 | $ 52

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