Goodwill and Purchased Intangible Assets, Net - Summary of Goodwill by Reportable Segment (Detail) - USD ($) $ in Millions	Jan. 28, 2022	Apr. 30, 2021
Goodwill [Line Items]
Total goodwill	$ 2,330	$ 2,039
Public Cloud
Goodwill [Line Items]
Total goodwill	616
Hybrid Cloud
Goodwill [Line Items]
Total goodwill	$ 1,714

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(10)(1))
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
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Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 852
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-Section 55
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