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Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Jul. 31, 2020	Apr. 24, 2020
Income Tax Disclosure [Abstract]
Effective tax rate excluding acquisition integration-related taxes	16.00%
Gross unrecognized tax benefits	$ 220
Gross unrecognized tax benefits included in other long-term liabilities	142	$ 136
Unrecognized tax benefits that would affect provision for income taxes	$ 142

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- Definition

Effective income tax rate excluding acquisition integration-related taxes.

+ References

No definition available.

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- Definition

Amount recognized for uncertainty in income taxes classified as noncurrent.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.24)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Amount of unrecognized tax benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 45
-Paragraph 10B
-URI http://asc.fasb.org/extlink&oid=116821951&loc=SL37586934-109318

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-Topic 740
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-Section 50
-Paragraph 15A
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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15A
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