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Supplemental Financial Information - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Jul. 25, 2025	Jul. 26, 2024	Apr. 25, 2025
Property Plant And Equipment [Line Items]
Revenue recognized	$ 714	$ 670
Lenovo NetApp Technology Limited (“LNTL”)
Property Plant And Equipment [Line Items]
Non-controlling equity interest, ownership percentage	49.00%
Other non current assets	$ 93		$ 92

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