Stockholders' Equity - Information Related to Stock Options (Detail) - USD ($) $ in Millions	3 Months Ended
Jul. 30, 2021	Jul. 31, 2020
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Intrinsic value of exercises	$ 5	$ 0
Fair value of options vested	$ 1	$ 0

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (d)(2)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration