Net Sales by Product Category (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Oct. 31, 2024	Oct. 31, 2023	Oct. 31, 2024	Oct. 31, 2023
Disaggregation of Revenue [Line Items]
Net sales		$ 1,095	$ 1,107	$ 2,046	$ 2,145
Whiskey [Member]
Disaggregation of Revenue [Line Items]
Net sales	[1]	769	739	1,428	1,436
Ready-to-Drink
Disaggregation of Revenue [Line Items]
Net sales	[2]	133	132	254	270
Tequila [Member]
Disaggregation of Revenue [Line Items]
Net sales	[3]	72	81	134	162
Non-branded and bulk [Member]
Disaggregation of Revenue [Line Items]
Net sales	[4]	30	20	56	40
Rest of portfolio [Member]
Disaggregation of Revenue [Line Items]
Net sales	[5]	$ 91	$ 135	$ 174	$ 237

[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, Slane Irish Whiskey, and Coopers’ Craft.

[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 Sonoma-Cutrer (which was divested on April 30, 2024), Korbel California Champagnes, Diplomático, Gin Mare, Chambord, Finlandia Vodka (which was divested on November 1, 2023), Fords Gin, and Korbel Brandy.