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Description of Business and Significant Accounting Policies - Additional Information (Detail) $ in Millions | 3 Months Ended
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Jul. 27, 2018 USD ($)
ASU 2016-16 |
Description Of Business And Significant Accounting Policies [Line Items] |
Cumulative-effect adjustment to decrease retained earnings | $ (51)

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- Definition Description of Business and Significant Accounting Policies. + References No definition available. + Details
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- Definition Amount of the related income tax effect of a cumulative effect on retained earnings. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22663-107794 + Details
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- Details
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