Reportable Segments (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2014	Jan. 31, 2013
Net sales:
Net sales	$ 1,465.5	$ 1,559.6	$ 4,376.3	$ 4,558.0
Segment profit:
Segment profit	332.7	331.2	945.7	933.6
Interest expense - net	(18.4)	(23.8)	(62.7)	(71.3)
Cost of products sold - restructuring and merger and integration	(2.9)	(1.2)	(6.7)	(7.6)
Other restructuring and merger and integration costs	(7.1)	(6.8)	(19.8)	(35.5)
Other special project costs	0	0	0	(6.7)
Corporate administrative expenses	(59.2)	(64.9)	(191.6)	(187.4)
Other income (expense) - net	1.4	(0.5)	1.1	0.4
Income before income taxes	246.5	234.0	666.0	625.5
U.S. Retail Coffee [Member]
Net sales:
Net sales	578.9	627.7	1,688.2	1,771.0
Segment profit:
Segment profit	182.3	175.2	508.9	459.8
U.S. Retail Consumer Foods [Member]
Net sales:
Net sales	557.8	581.3	1,706.8	1,729.0
Segment profit:
Segment profit	105.6	106.2	301.2	325.1
International, Foodservice, and Natural Foods [Member]
Net sales:
Net sales	328.8	350.6	981.3	1,058.0
Segment profit:
Segment profit	$ 44.8	$ 49.8	$ 135.6	$ 148.7