Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Jul. 31, 2013	Jul. 31, 2012
Income Statement [Abstract]
Net sales	$ 896	$ 878
Excise taxes	210	212
Cost of sales	209	202
Gross profit	477	464
Advertising expenses	103	92
Selling, general, and administrative expenses	156	148
Other expense, net	1	2
Operating income	217	222
Interest income	1	0
Interest expense	7	5
Income before income taxes	211	217
Income taxes	68	70
Net income	$ 143	$ 147
Earnings per share:
Basic	$ 0.67	$ 0.69
Diluted	$ 0.66	$ 0.69
Cash dividends per common share:
Declared	$ 0.510	$ 0.467
Paid	$ 0.255	$ 0.233