Reportable Segments (Details) - USD ($) $ in Millions		3 Months Ended
		Jul. 31, 2020	Jul. 31, 2019
Net sales:
Net sales		$ 1,971.8	$ 1,778.9
Segment profit:
Segment profit		470.3	362.3
Amortization		(59.6)	(58.8)
Interest expense – net		(46.1)	(49.4)
Unallocated derivative gains (losses)		16.2	29.0
Other special project costs (A)	[1]	0.0	(3.3)
Corporate administrative expenses		(65.8)	(71.6)
Other income (expense) – net		(1.4)	(1.5)
Income Before Income Taxes		313.6	206.7
U.S. Retail Pet Foods [Member]
Net sales:
Net sales		692.6	669.9
Segment profit:
Segment profit		125.3	120.1
U.S. Retail Coffee [Member]
Net sales:
Net sales		570.9	465.7
Segment profit:
Segment profit		182.6	128.9
U.S. Retail Consumer Foods [Member]
Net sales:
Net sales		489.2	402.2
Segment profit:
Segment profit		131.5	81.0
International and Away From Home
Net sales:
Net sales		219.1	241.1
Segment profit:
Segment profit		$ 30.9	$ 32.3

[1] Other special project costs includes integration and restructuring costs. For more information, see Note 3: Integration and Restructuring Costs.