Goodwill and Other Intangible Assets (Details) - USD ($) $ in Millions	6 Months Ended
	Oct. 31, 2025	Apr. 30, 2025
Goodwill [Roll Forward]
Balance at April 30, 2025	$ 1,505
Foreign currency translation adjustment	5
Balance at October 31, 2025	1,510
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Definite-lived supply contract, Gross Carrying Amount	88	$ 0
Definite-lived supply contract, Net Carrying Amount	88	0
Indefinite-lived trademarks and brand names, Gross Carrying Amount	987	981
Indefinite-lived trademarks and brand names, Net Carrying Amount	987	981
Total other intangible assets, Gross Carrying Amount	1,075	981
Total other intangible assets, Net Carrying Amount	$ 1,075	$ 981