Net Sales by Geography (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Jan. 31, 2026	Jan. 31, 2025	Jan. 31, 2026	Jan. 31, 2025
Disaggregation of Revenue [Line Items]
Net sales		$ 1,056	$ 1,035	$ 3,016	$ 3,081
United States [Member]
Disaggregation of Revenue [Line Items]
Net sales		427	459	1,257	1,367
Developed International [Member]
Disaggregation of Revenue [Line Items]
Net sales	[1]	307	298	851	867
Emerging [Member]
Disaggregation of Revenue [Line Items]
Net sales	[2]	276	220	748	647
Travel Retail [Member]
Disaggregation of Revenue [Line Items]
Net sales	[3]	39	35	131	121
Non-branded and bulk [Member]
Disaggregation of Revenue [Line Items]
Net sales	[4]	$ 7	$ 23	$ 29	$ 79

[1] Represents net sales of branded products to “advanced economies” as defined by the International Monetary Fund (IMF), excluding the United States. Our top developed international markets are Germany, Australia, the United Kingdom, France, and Canada.

[2] Represents net sales of branded products to “emerging and developing economies” as defined by the IMF. Our top emerging markets are Mexico, Poland, Brazil, and Türkiye.

[3] Represents net sales of branded products to global duty-free customers, other travel retail customers, and the U.S. military, regardless of customer location.

[4] Includes net sales of used barrels, contract bottling services, and non-branded bulk whiskey, regardless of customer location.