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Other Income, Net (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jan. 25, 2019	Jan. 26, 2018	Jan. 25, 2019	Jan. 26, 2018
Nonoperating Income Expense [Abstract]
Interest income	$ 22	$ 20	$ 68	$ 55
Interest expense	(16)	(17)	(44)	(47)
Other income, net	2	11	9	17
Total other income, net	$ 8	$ 14	$ 33	$ 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.

+ References

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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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No definition available.

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- Definition

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

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