Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Jul. 31, 2020	Jul. 31, 2019
Income Statement [Abstract]
Sales	$ 987	$ 978
Excise taxes	234	212
Net sales	753	766
Cost of sales	288	268
Gross profit	465	498
Advertising expenses	62	92
Selling, general, and administrative expenses	148	164
Gain on sale of business	(127)	0
Other expense (income), net	(5)	(6)
Operating income	387	248
Non-operating postretirement expense	1	1
Interest income	0	(2)
Interest expense	20	21
Income before income taxes	366	228
Income taxes	42	42
Net income	$ 324	$ 186
Earnings per share:
Basic (dollars per share)	$ 0.68	$ 0.39
Diluted (dollars per share)	$ 0.67	$ 0.39