Acquisition (Details Textual) $ / shares in Units, $ in Millions			3 Months Ended		12 Months Ended
		Nov. 07, 2023 USD ($) numberOfEmployees $ / shares shares	Apr. 30, 2025 USD ($)	Jan. 31, 2025 USD ($)	Apr. 30, 2025 USD ($)		Apr. 30, 2024 USD ($)	Apr. 30, 2023 USD ($)	Sep. 08, 2023 $ / shares shares	Apr. 30, 2020 USD ($)
Asset Acquisition [Line Items]
Business acquired, net of cash acquired					$ 0.0		$ 3,920.6	$ 0.0
Debt instrument face amount			$ 7,103.2		7,103.2		7,850.0
Short-term borrowings			640.8		640.8		591.0
Net sales					8,726.1		8,178.7	8,529.2
Operating Income (Loss)					673.9		(1,305.8)	(157.5)
Goodwill, ending balance			5,710.0		5,710.0		7,649.9	5,216.9
Gain (loss) on divestitures - net					(310.1)		(12.9)	(1,018.5)
Asset Impairment Charges			980.0	$ 1,000.0	1,982.5
Goodwill impairment charges			867.3	794.3	1,661.6	[1]	0.0	0.0
Other intangible assets impairment charges			112.7	$ 208.2	320.9		0.0	0.0
Sweet Baked Snacks Value Brands
Asset Acquisition [Line Items]
Gain (loss) on divestitures - net					(44.2)
Voortman
Asset Acquisition [Line Items]
Gain (loss) on divestitures - net					(265.9)
Sweet Baked Snacks
Asset Acquisition [Line Items]
Operating Income (Loss)					2,162.3
Goodwill, ending balance			507.5		507.5		2,447.2	0.0
Goodwill impairment charges	[1]				1,661.6
Operating Segments | Sweet Baked Snacks
Asset Acquisition [Line Items]
Net sales					1,178.8		637.3	$ 0.0
Commercial Paper [Member]
Asset Acquisition [Line Items]
Short-term borrowings			641.0		641.0		591.0
Senior Notes [Member]
Asset Acquisition [Line Items]
Debt instrument face amount										$ 800.0
Hostess Brands
Asset Acquisition [Line Items]
Business Combination, Consideration Transferred		$ 5,400.0
Business Acquisition, Share Price | $ / shares		$ 34.25
Business Acquisition, Price Paid Per Share in Cash | $ / shares									$ 30.00
Business Acquisition, Equity Interest Issued or Issuable, Fraction of Common Shares Issued | shares									0.03002
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares | shares		4,000,000.0
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned		$ 450.2
Business acquired, net of cash acquired		3,900.0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-Term Debt		991.0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other Debt-Like Item		$ 67.8
Acquisition, Number of Employees Acquired | numberOfEmployees		3,000
Goodwill, ending balance		$ 2,446.8
Goodwill deductible for tax purposes		196.6	$ 164.8		$ 164.8
Finite Lived Intangible Assets Expected Annual Amortization Expense		71.6
Hostess Brands | Sweet Baked Snacks
Asset Acquisition [Line Items]
Goodwill, ending balance		2,400.0
Hostess Brands | Commercial Paper [Member]
Asset Acquisition [Line Items]
Short-term borrowings		$ 700.0
Hostess Brands | Senior Notes [Member]
Asset Acquisition [Line Items]
Proceeds from Issuance of Debt							5,000.0
Debt instrument face amount							3,500.0
Hostess Brands | Term Loan Credit Agreement
Asset Acquisition [Line Items]
Maximum borrowing capacity							$ 800.0

[1] Included in goodwill as of April 30, 2025, are accumulated goodwill impairment charges of $1,904.5.