Reportable Segments (Details 2) - USD ($) $ in Millions		3 Months Ended
		Jul. 31, 2022	Jul. 31, 2021
Product category information [Line Items]
Net sales		$ 1,873.0	$ 1,858.0
Percent of product sales attributable to primary reportable segment		75.00%
U.S. Retail Coffee [Member]
Product category information [Line Items]
Net sales		$ 597.9	543.2
U.S. Retail Coffee [Member] | Coffee [Member]
Product category information [Line Items]
Net sales	[1]	679.9	613.1
U.S. Retail Pet Foods [Member]
Product category information [Line Items]
Net sales		729.0	648.0
U.S. Retail Pet Foods [Member] | Cat food [Member]
Product category information [Line Items]
Net sales	[1]	265.4	221.0
U.S. Retail Pet Foods [Member] | Pet snacks [Member]
Product category information [Line Items]
Net sales	[1]	244.2	215.8
U.S. Retail Pet Foods [Member] | Dog food [Member]
Product category information [Line Items]
Net sales	[1]	241.7	228.3
U.S. Retail Consumer Foods [Member]
Product category information [Line Items]
Net sales		311.1	435.6
U.S. Retail Consumer Foods [Member] | Frozen handheld [Member]
Product category information [Line Items]
Net sales	[1]	160.5	121.6
U.S. Retail Consumer Foods [Member] | Fruit spreads [Member]
Product category information [Line Items]
Net sales	[1]	100.1	90.8
U.S. Retail Consumer Foods [Member] | Peanut butter [Member]
Product category information [Line Items]
Net sales	[1]	60.6	211.3
U.S. Retail Consumer Foods [Member] | Juices and beverages [Member]
Product category information [Line Items]
Net sales	[1],[2]		33.2
Other
Product category information [Line Items]
Net sales		235.0	231.2
Other | Portion control [Member]
Product category information [Line Items]
Net sales	[1],[3]	27.8	34.4
Other | Baking mixes and ingredients [Member]
Product category information [Line Items]
Net sales	[1],[3]	16.3	12.4
Other | Juices and beverages [Member]
Product category information [Line Items]
Net sales	[1],[2],[3]	0.8
Other | Other [Member]
Product category information [Line Items]
Net sales	[1],[3]	$ 75.7	$ 76.1

[1] The primary reportable segment generally represents at least 75 percent of total net sales for each respective product category.

[2] During the three months ended July 31, 2021, the net sales within this category were primarily related to the divested natural beverage business included in the U.S. Retail Consumer Foods segment. For more information, see Note 4: Divestitures.

[3] Represents the International and Away From Home operating segments, which are combined for segment reporting purposes.