Reportable Segments (Details 2) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Oct. 31, 2025	Oct. 31, 2024	Oct. 31, 2025	Oct. 31, 2024
Product category information [Line Items]
Net sales		$ 2,330.1	$ 2,271.2	$ 4,443.4	$ 4,396.3
Percent of product sales attributable to primary reportable segment				75.00%	75.00%
U.S. Retail Coffee
Product category information [Line Items]
Net sales		848.9	704.0	$ 1,566.1	$ 1,327.4
U.S. Retail Coffee | Coffee
Product category information [Line Items]
Net sales	[1]	966.5	797.0	1,782.6	1,508.9
U.S. Retail Frozen Handheld and Spreads
Product category information [Line Items]
Net sales		461.1	485.2	945.8	982.0
U.S. Retail Frozen Handheld and Spreads | Frozen handheld
Product category information [Line Items]
Net sales	[1]	262.9	246.5	507.0	469.1
U.S. Retail Frozen Handheld and Spreads | Peanut butter
Product category information [Line Items]
Net sales	[1]	187.1	213.8	394.1	432.4
U.S. Retail Frozen Handheld and Spreads | Fruit spreads
Product category information [Line Items]
Net sales	[1]	92.2	101.7	187.5	208.2
U.S. Retail Frozen Handheld and Spreads | Toppings and syrups
Product category information [Line Items]
Net sales	[1]	26.5	20.3	56.2	48.6
U.S. Retail Pet Foods
Product category information [Line Items]
Net sales		413.2	445.4	781.2	845.1
U.S. Retail Pet Foods | Pet snacks
Product category information [Line Items]
Net sales	[1]	232.0	255.2	435.4	482.0
U.S. Retail Pet Foods | Cat food
Product category information [Line Items]
Net sales	[1]	197.2	200.8	376.5	383.9
Sweet Baked Snacks
Product category information [Line Items]
Net sales		256.1	315.5	509.3	649.2
Sweet Baked Snacks | Sweet Baked Goods
Product category information [Line Items]
Net sales	[1]	256.1	279.2	509.3	575.8
Sweet Baked Snacks | Cookies
Product category information [Line Items]
Net sales	[1]	0.0	36.3	0.0	73.4
Other
Product category information [Line Items]
Net sales		350.8	321.1	641.0	592.6
Other | Portion control
Product category information [Line Items]
Net sales	[1],[2]	50.1	56.8	100.5	110.9
Other | Baking mixes and ingredients
Product category information [Line Items]
Net sales	[1],[2]	28.6	28.9	43.1	43.1
Other | Other
Product category information [Line Items]
Net sales	[1],[2]	$ 30.9	$ 34.7	$ 51.2	$ 60.0

[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.