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Financial Instruments and Fair Value Measurements - Summary of Investments at Cost or Amortized Cost (Detail) - USD ($) $ in Millions	Apr. 30, 2021	Apr. 24, 2020
Schedule of Available-for-sale Securities [Line Items]
Cost or amortized cost	$ 167	$ 414
Corporate Bonds
Schedule of Available-for-sale Securities [Line Items]
Cost or amortized cost	58	155
U.S. Treasury and Government Debt Securities
Schedule of Available-for-sale Securities [Line Items]
Cost or amortized cost	8	68
Certificates of Deposit
Schedule of Available-for-sale Securities [Line Items]
Cost or amortized cost	61	158
Mutual Funds
Schedule of Available-for-sale Securities [Line Items]
Cost or amortized cost	$ 40	$ 33

X

- Definition

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=121558606&loc=SL82898722-210454

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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