Supplemental Financial Information - Other Income (Expense) Net (Detail) - USD ($) $ in Millions	12 Months Ended
Apr. 24, 2020	Apr. 26, 2019	Apr. 27, 2018
Nonoperating Income Expense [Abstract]
Interest income	$ 48	$ 88	$ 79
Interest expense	(55)	(58)	(62)
Other income, net	6	17	24
Other income (expense), net	$ (1)	$ 47	$ 41

Amount of the cost of borrowed funds accounted for as interest expense.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section S99
-Paragraph 2
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- Definition

The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).

+ References

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No definition available.

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Amount of income (expense) related to nonoperating activities, classified as other.

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