Goodwill and Other Intangible Assets - Carrying Amount and Accumulated Amortization of Intangible Assets (Details) - USD ($) $ in Millions	Jan. 28, 2022	Apr. 30, 2021
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 28,376	$ 28,879
Accumulated Amortization	(12,609)	(11,533)
IPR&D
Indefinite-lived Intangible Assets [Line Items]
Gross Carrying Amount, Indefinite-lived	311	394
Customer-related
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	16,990	17,036
Accumulated Amortization	(6,775)	(6,058)
Purchased technology and patents
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	10,834	11,286
Accumulated Amortization	(5,506)	(5,156)
Trademarks and tradenames
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	474	475
Accumulated Amortization	(262)	(251)
Other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	78	82
Accumulated Amortization	$ (66)	$ (68)