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

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as noncurrent.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479837/606-10-45-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 8
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-8

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479837/606-10-45-2

Name:	us-gaap_ContractWithCustomerLiabilityNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant