Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Jan. 28, 2022	Jan. 29, 2021	Jan. 28, 2022	Jan. 29, 2021	Apr. 30, 2021
Income Tax Disclosure [Abstract]
Effective tax rate	6.70%	(4.80%)	8.80%	2.80%
Charge (benefit), settlements	$ (106)		$ (106)
Benefit related to capitalization of certain research and development costs		$ (83)		$ (83)
Tax benefit associated with step up in tax basis for Swiss Cantonal purposes	(82)		(82)
Gross unrecognized tax benefits	1,700		1,700		$ 1,700
Accrued gross interest and penalties	114		114
Unrecognized tax benefits that would impact effective tax rate	1,600		1,600
Gross unrecognized tax benefits, net of cash advance, recorded as noncurrent liability	$ 820		$ 820		$ 809

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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-Name Accounting Standards Codification
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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to income tax settlements. Including, but not limited to, domestic tax settlement, foreign tax settlement, state and local tax settlement, and other tax settlements.

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Amount recognized for uncertainty in income taxes classified as noncurrent.

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Amount of unrecognized tax benefits.

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Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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