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v3.25.0.1

Segment Geographic and Significant Customer Information - Schedule of Financial Information by Segment (Parenthetical) (Detail) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jan. 24, 2025 | Jan. 26, 2024 | Jan. 24, 2025 | Jan. 26, 2024
Segment Reporting [Abstract] |  |  |  |
Unallocated cost of revenue stock-based compensation expense | $ 8 | $ 7 | $ 23 | $ 21
Unallocated cost of revenue amortization of intangible assets | $ 8 | $ 9 | $ 25 | $ 26

X
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Period Type: | duration

X
- Definition Unallocated cost of revenue stock-based compensation expense. + References No definition available. + Details
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Namespace Prefix: | ntap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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X
- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
Period Type: | duration