Reportable Segments (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Jul. 31, 2013	Jul. 31, 2012
Net sales:
Net sales	$ 1,350.9	$ 1,369.7
Segment profit:
Segment profit	285.8	274.9
Interest expense - net	(23.8)	(23.6)
Cost of products sold - restructuring and merger and integration	(1.5)	(4.0)
Other restructuring and merger and integration costs	(5.8)	(17.2)
Other special project costs	0	(6.7)
Corporate administrative expenses	(65.2)	(56.5)
Other income - net	0	0.4
Income before income taxes	189.5	167.3
[USRetailCoffeeMarketMember]
Net sales:
Net sales	514.4	520.8
Segment profit:
Segment profit	146.0	126.4
[UsRetailConsumerFoodsMarketMember]
Net sales:
Net sales	536.4	528.4
Segment profit:
Segment profit	96.4	107.8
[InternationalFoodserviceAndNaturalFoodsMember]
Net sales:
Net sales	300.1	320.5
Segment profit:
Segment profit	$ 43.4	$ 40.7