Net Sales by Product Category (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Oct. 31, 2025	Oct. 31, 2024	Oct. 31, 2025	Oct. 31, 2024
Disaggregation of Revenue [Line Items]
Net sales		$ 1,036	$ 1,095	$ 1,960	$ 2,046
Whiskey [Member]
Disaggregation of Revenue [Line Items]
Net sales	[1]	771	769	1,430	1,428
Ready-to-Drink [Member]
Disaggregation of Revenue [Line Items]
Net sales	[2]	138	133	266	254
Tequila [Member]
Disaggregation of Revenue [Line Items]
Net sales	[3]	67	72	129	134
Non-branded and bulk [Member]
Disaggregation of Revenue [Line Items]
Net sales	[4]	8	30	22	56
Rest of portfolio [Member]
Disaggregation of Revenue [Line Items]
Net sales	[5]	$ 52	$ 91	$ 113	$ 174

[1] Includes all whiskey spirits and whiskey-based flavored liqueurs. The brands included in this category are the Jack Daniel’s family of brands (excluding the “ready-to-drink” products outlined below), the Woodford Reserve family of brands, the Old Forester family of brands, The GlenDronach, Benriach, Glenglassaugh, and Slane Irish Whiskey.

[2] Includes the Jack Daniel’s ready-to-drink (RTD) and ready-to-pour (RTP) products, New Mix, and other RTD/RTP products.

[3] Includes el Jimador, the Herradura family of brands, and other tequilas.

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

[5] Includes Korbel California Champagnes and Korbel Brandy (the sales, marketing, and distribution relationship ended on June 30, 2025), Diplomático, Chambord, Gin Mare, Sonoma-Cutrer (which was divested on April 30, 2024), Finlandia Vodka (which was divested on November 1, 2023), Fords Gin, and other agency brands (brands we do not own, but sell in certain markets).