Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Oct. 31, 2022	Oct. 31, 2021	Oct. 31, 2022	Oct. 31, 2021
Income Statement [Abstract]
Sales	$ 1,384	$ 1,283	$ 2,672	$ 2,466
Excise taxes	290	289	571	566
Net sales	1,094	994	2,101	1,900
Cost of sales	481	404	866	757
Gross profit	613	590	1,235	1,143
Advertising expenses	121	104	231	194
Selling, general, and administrative expenses	180	165	355	333
Other expense (income), net	(1)	(1)	(7)	5
Operating income	313	322	656	611
Non-operating postretirement expense	0	2	0	2
Interest income	(3)	(1)	(5)	(2)
Interest expense	18	20	37	41
Income before income taxes	298	301	624	570
Income taxes	71	65	148	142
Net income	$ 227	$ 236	$ 476	$ 428
Earnings per share:
Basic (dollars per share)	$ 0.47	$ 0.49	$ 0.99	$ 0.89
Diluted (dollars per share)	$ 0.47	$ 0.49	$ 0.99	$ 0.89