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Supplemental Financial Information - Other Income Net (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Oct. 25, 2019	Oct. 26, 2018	Oct. 25, 2019	Oct. 26, 2018
Nonoperating Income Expense [Abstract]
Interest income	$ 12	$ 21	$ 31	$ 46
Interest expense	(12)	(14)	(27)	(28)
Other income, net	3	0	14	7
Total other income, net	$ 3	$ 7	$ 18	$ 25

X

- Definition

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

+ References

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X

- Definition

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

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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).

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

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