Income Taxes - Income Tax (Benefit) Provision (Details) - USD ($) $ in Millions	12 Months Ended
	Apr. 24, 2020	Apr. 26, 2019	Apr. 27, 2018
Current tax expense:
U.S.	$ 151	$ 579	$ 2,899
International	375	406	796
Total current tax expense	526	985	3,695
Deferred tax expense (benefit):
U.S.	(138)	(310)	45
International	(1,139)	(128)	(1,160)
Net deferred tax benefit	(1,277)	(438)	(1,115)
Income tax (benefit) provision	$ (751)	$ 547	$ 2,580