Reportable Segments (Details) - USD ($) $ in Millions		12 Months Ended
		Apr. 30, 2024	Apr. 30, 2023	Apr. 30, 2022
Segment Reporting Information [Line Items]
Net sales		$ 8,178.7	$ 8,529.2	$ 7,998.9
Segment profit		1,941.7	1,728.5	1,698.8
Amortization		(191.1)	(206.9)	(223.6)
Other intangible assets impairment charges		0.0	0.0	(150.4)
Gain (loss) on divestitures - net		(12.9)	(1,018.5)	9.6
Interest expense – net		(264.3)	(152.0)	(160.9)
Change in net cumulative unallocated derivative gains and losses		6.7	(21.4)	(23.4)
Cost of products sold – special project costs (B)	[1]	(2.9)	(6.4)	(20.5)
Other special project costs (A)	[1],[2]	(130.2)	(4.7)	(8.0)
Other debt costs	[1],[2]	(19.5)	0.0	0.0
Corporate administrative expenses		(305.5)	(313.1)	(258.7)
Other income (expense) – net	[1]	(25.6)	(14.7)	(19.1)
Income (Loss) Before Income Taxes		996.4	(9.2)	843.8
Assets		20,273.7	14,991.4	16,055.0
Depreciation, amortization, and impairment charges		430.8	431.0	609.5
Additions to property, plant, and equipment		586.5	477.4	417.5
Unallocated
Segment Reporting Information [Line Items]
Assets	[3]	149.5	1,237.2	329.8
Depreciation, amortization, and impairment charges	[4]	38.0	42.7	55.7
U.S. Retail Coffee | Operating Segments
Segment Reporting Information [Line Items]
Net sales		2,704.4	2,735.3	2,497.3
Segment profit		759.2	737.7	736.7
Assets		4,826.3	4,808.9	4,891.8
Depreciation, amortization, and impairment charges		101.1	101.6	100.2
Additions to property, plant, and equipment by segment		79.7	49.0	49.8
U.S. Retail Frozen Handheld and Spreads | Operating Segments
Segment Reporting Information [Line Items]
Net sales		1,815.6	1,630.9	1,707.2
Segment profit		434.1	352.6	424.2
Assets		3,257.1	2,972.7	2,692.1
Depreciation, amortization, and impairment charges		81.6	76.3	64.6
Additions to property, plant, and equipment by segment		334.5	341.6	274.8
U.S. Retail Pet Foods | Operating Segments
Segment Reporting Information [Line Items]
Net sales	[5]	1,822.8	3,038.1	2,764.3
Segment profit	[5]	402.1	494.9	395.9
Assets	[5]	4,784.1	4,994.3	7,167.4
Depreciation, amortization, and impairment charges	[5]	118.1	178.7	342.8
Additions to property, plant, and equipment by segment	[5]	83.4	64.3	74.0
Sweet Baked Snacks | Operating Segments
Segment Reporting Information [Line Items]
Net sales		637.3	0.0	0.0
Segment profit		138.2	0.0	0.0
Assets		6,267.1	0.0	0.0
Depreciation, amortization, and impairment charges		59.6	0.0	0.0
Additions to property, plant, and equipment by segment		41.2	0.0	0.0
International and Away From Home | Operating Segments
Segment Reporting Information [Line Items]
Net sales		1,198.6	1,124.9	1,030.1
Segment profit		208.1	143.3	142.0
Assets		989.6	978.3	973.9
Depreciation, amortization, and impairment charges		32.4	31.7	46.2
Additions to property, plant, and equipment by segment		$ 47.7	$ 22.5	$ 18.9

[1] Includes special project costs related to certain divestiture, acquisition, integration, and restructuring activities. For more information, see Note 4: Special Project Costs and Note 8: Debt and Financing Arrangements.

[2] Includes special project costs related to certain divestiture, acquisition, integration, and restructuring activities. For more information, see Note 4: Special Project Costs, Note 5: Reportable Segments, and Note 8: Debt and Financing Arrangements.

[3] Primarily represents unallocated cash and cash equivalents and corporate-held investments.

[4] Primarily represents unallocated corporate administrative expenses, mainly consisting of depreciation and software amortization.

[5] 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.