Reportable Segments (Details) - USD ($) $ in Millions		12 Months Ended
		Apr. 30, 2023	Apr. 30, 2022	Apr. 30, 2021
Segment Reporting Information [Line Items]
Net sales		$ 8,529.2	$ 7,998.9	$ 8,002.7
Segment profit		1,728.5	1,698.8	1,852.7
Amortization		(206.9)	(223.6)	(233.0)
Other intangible assets impairment charges		0.0	(150.4)	(3.8)
Gain (loss) on divestitures - net		(1,018.5)	9.6	25.3
Interest expense – net		(152.0)	(160.9)	(177.1)
Change in net cumulative unallocated derivative gains and losses		(21.4)	(23.4)	93.6
Cost of products sold – special project costs (B)	[1]	(6.4)	(20.5)	(3.4)
Other special project costs (A)	[1],[2]	(4.7)	(8.0)	(20.7)
Corporate administrative expenses		(313.1)	(258.7)	(323.9)
Other income (expense) – net		(14.7)	(19.1)	(37.8)
Income (Loss) Before Income Taxes		(9.2)	843.8	1,171.9
Assets		14,991.4	16,055.0	16,284.2
Depreciation, amortization, and impairment charges		431.0	609.5	456.3
Additions to property, plant, and equipment		477.4	417.5	306.7
Unallocated [Member]
Segment Reporting Information [Line Items]
Assets	[3]	1,237.2	329.8	442.3
Depreciation, amortization, and impairment charges	[4]	42.7	55.7	39.2
U.S. Retail Pet Foods [Member]
Segment Reporting Information [Line Items]
Net sales	[5]	3,038.1	2,764.3	2,844.5
Segment profit	[5]	494.9	395.9	487.0
Assets	[5]	4,994.3	7,167.4	7,480.8
Depreciation, amortization, and impairment charges	[5]	178.7	342.8	194.8
Additions to property, plant, and equipment	[5]	64.3	74.0	72.4
U.S. Retail Coffee [Member]
Segment Reporting Information [Line Items]
Net sales		2,735.3	2,497.3	2,374.6
Segment profit		737.7	736.7	769.1
Assets		4,808.9	4,891.8	4,793.9
Depreciation, amortization, and impairment charges		101.6	100.2	96.7
Additions to property, plant, and equipment		49.0	49.8	42.5
U.S. Retail Consumer Foods [Member]
Segment Reporting Information [Line Items]
Net sales		1,630.9	1,707.2	1,835.7
Segment profit		352.6	424.2	472.5
Assets		2,972.7	2,692.1	2,553.4
Depreciation, amortization, and impairment charges		76.3	64.6	75.4
Additions to property, plant, and equipment		341.6	274.8	167.4
International and Away From Home
Segment Reporting Information [Line Items]
Net sales		1,124.9	1,030.1	947.9
Segment profit		143.3	142.0	124.1
Assets		978.3	973.9	1,013.8
Depreciation, amortization, and impairment charges		31.7	46.2	50.2
Additions to property, plant, and equipment		$ 22.5	$ 18.9	$ 24.4

[1] Special project costs include certain restructuring costs, which are recognized in cost of products sold and other special project costs in the Statements of Consolidated Income. For more information, see Note 2: Special Project Costs.

[2] Special project costs include certain restructuring costs, which are recognized in cost of products sold and other special project costs. For more information, see Note 2: Special Project Costs and Note 4: Reportable Segments.

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

[4] (D)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. In addition, the net assets disposed of during 2023 were primarily included in the U.S. Retail Pet Foods segment. For more information, see Note 3: Divestitures.