Reportable Segments (Details 2) - USD ($) $ in Millions		12 Months Ended
		Apr. 30, 2024	Apr. 30, 2023	Apr. 30, 2022
Revenue from External Customer [Line Items]
Net sales		$ 8,178.7	$ 8,529.2	$ 7,998.9
Percent of product sales attributable to primary reportable segment		75.00%
Operating Segments | U.S. Retail Coffee
Revenue from External Customer [Line Items]
Net sales		$ 2,704.4	2,735.3	2,497.3
Operating Segments | U.S. Retail Coffee | Coffee [Member]
Revenue from External Customer [Line Items]
Net sales	[1]	3,063.0	3,088.8	2,804.7
Operating Segments | U.S. Retail Frozen Handheld and Spreads
Revenue from External Customer [Line Items]
Net sales		1,815.6	1,630.9	1,707.2
Operating Segments | U.S. Retail Frozen Handheld and Spreads | Peanut butter [Member]
Revenue from External Customer [Line Items]
Net sales	[1]	814.1	635.6	801.1
Operating Segments | U.S. Retail Frozen Handheld and Spreads | Frozen handheld [Member]
Revenue from External Customer [Line Items]
Net sales	[1]	791.1	686.4	510.7
Operating Segments | U.S. Retail Frozen Handheld and Spreads | Fruit spreads [Member]
Revenue from External Customer [Line Items]
Net sales	[1]	427.2	426.2	386.5
Operating Segments | U.S. Retail Frozen Handheld and Spreads | Topping and syrups [Member]
Revenue from External Customer [Line Items]
Net sales	[1]	88.4	88.9	82.5
Operating Segments | U.S. Retail Pet Foods
Revenue from External Customer [Line Items]
Net sales	[2]	1,822.8	3,038.1	2,764.3
Operating Segments | U.S. Retail Pet Foods | Pet snacks [Member]
Revenue from External Customer [Line Items]
Net sales	[1]	1,024.8	1,052.4	944.9
Operating Segments | U.S. Retail Pet Foods | Cat food [Member]
Revenue from External Customer [Line Items]
Net sales	[1]	792.4	1,101.1	969.9
Operating Segments | U.S. Retail Pet Foods | Dog food [Member]
Revenue from External Customer [Line Items]
Net sales	[1]	76.4	980.0	926.5
Operating Segments | Sweet Baked Snacks
Revenue from External Customer [Line Items]
Net sales		637.3	0.0	0.0
Operating Segments | Sweet Baked Snacks | Sweet baked goods [Member]
Revenue from External Customer [Line Items]
Net sales	[1]	572.5	0.0	0.0
Operating Segments | Sweet Baked Snacks | Cookies [Member]
Revenue from External Customer [Line Items]
Net sales	[1]	64.8	0.0	0.0
Operating Segments | Other
Revenue from External Customer [Line Items]
Net sales		1,198.6	1,124.9	1,030.1
Operating Segments | Other | Portion control [Member]
Revenue from External Customer [Line Items]
Net sales	[1],[3]	207.9	163.7	158.2
Operating Segments | Other | Baking mixes and ingredients [Member]
Revenue from External Customer [Line Items]
Net sales	[1],[3]	90.3	94.3	85.5
Operating Segments | Other | Other [Member]
Revenue from External Customer [Line Items]
Net sales	[1],[3]	$ 165.8	$ 211.8	$ 328.4

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

[2] On April 28, 2023, we sold certain pet food brands to Post, and the divested net sales were primarily included in the U.S. Retail Pet Foods segment. For more information, see Note 3: Divestitures.

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