Reportable Segments (Details 2) - USD ($) $ in Millions		3 Months Ended
		Jul. 31, 2025	Jul. 31, 2024
Product category information [Line Items]
Net sales		$ 2,113.3	$ 2,125.1
Percent of product sales attributable to primary reportable segment		75.00%	75.00%
U.S. Retail Coffee
Product category information [Line Items]
Net sales		$ 717.2	$ 623.4
U.S. Retail Coffee | Coffee
Product category information [Line Items]
Net sales	[1]	816.1	711.9
U.S. Retail Frozen Handheld and Spreads
Product category information [Line Items]
Net sales		484.7	496.8
U.S. Retail Frozen Handheld and Spreads | Frozen handheld
Product category information [Line Items]
Net sales	[1]	244.1	222.6
U.S. Retail Frozen Handheld and Spreads | Peanut butter
Product category information [Line Items]
Net sales	[1]	207.0	218.6
U.S. Retail Frozen Handheld and Spreads | Fruit spreads
Product category information [Line Items]
Net sales	[1]	95.3	106.5
U.S. Retail Frozen Handheld and Spreads | Toppings and syrups
Product category information [Line Items]
Net sales	[1]	29.7	28.3
U.S. Retail Pet Foods
Product category information [Line Items]
Net sales		368.0	399.7
U.S. Retail Pet Foods | Pet snacks
Product category information [Line Items]
Net sales	[1]	203.4	226.8
U.S. Retail Pet Foods | Cat food
Product category information [Line Items]
Net sales	[1]	179.3	183.1
Sweet Baked Snacks
Product category information [Line Items]
Net sales		253.2	333.7
Sweet Baked Snacks | Sweet Baked Goods
Product category information [Line Items]
Net sales	[1]	253.2	296.6
Sweet Baked Snacks | Cookies
Product category information [Line Items]
Net sales	[1]	0.0	37.1
Other
Product category information [Line Items]
Net sales		290.2	271.5
Other | Portion control
Product category information [Line Items]
Net sales	[1],[2]	50.4	54.1
Other | Baking mixes and ingredients
Product category information [Line Items]
Net sales	[1],[2]	14.5	14.2
Other | Other
Product category information [Line Items]
Net sales	[1],[2]	$ 20.3	$ 25.3

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

[2] Represents the combined International and Away From Home operating segments.