Net Sales by Geography (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jan. 31, 2022	Jan. 31, 2021	Jan. 31, 2022		Jan. 31, 2021
Disaggregation of Revenue [Line Items]
Net sales	$ 1,037	$ 911	$ 2,937		$ 2,649
United States [Member]
Disaggregation of Revenue [Line Items]
Net sales	488	425	1,400		1,334
Developed International [Member]
Disaggregation of Revenue [Line Items]
Net sales	318	292	884	[1]	789	[1]
Emerging [Member]
Disaggregation of Revenue [Line Items]
Net sales	196	171	533	[2]	438	[2]
Travel Retail [Member]
Disaggregation of Revenue [Line Items]
Net sales	25	12	74	[3]	47	[3]
Non-branded and bulk [Member]
Disaggregation of Revenue [Line Items]
Net sales	$ 10	$ 11	$ 46	[4]	$ 41	[4]

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

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

[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, bulk whiskey and wine, and contract bottling regardless of customer location.