Consolidated Statements of Operations (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Apr. 30, 2014	Apr. 30, 2013	Apr. 30, 2012
Income Statement [Abstract]
Net sales	$ 3,946	$ 3,784	$ 3,614
Excise taxes	955	935	891
Cost of sales	913	894	928
Gross profit	2,078	1,955	1,795
Advertising expenses	436	408	395
Selling, general, and administrative expenses	686	650	610
Amortization expense	0	0	3
Other expense (income), net	(15)	(1)	(1)
Operating income	971	898	788
Interest income	2	3	3
Interest expense	26	36	31
Income before income taxes	947	865	760
Income taxes	288	274	247
Net income	$ 659	$ 591	$ 513
Earnings per share:
Basic (dollars per share)	$ 3.08	$ 2.77	$ 2.39
Diluted (dollars per share)	$ 3.06	$ 2.75	$ 2.37