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Total costs accrued as of the balance sheet date for environmental loss contingencies.

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Indicates line item in statement of financial position that includes accrual for environmental loss contingency.

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Amount due in settlement of a claim for reimbursement from an insurance company when the Company has suffered a loss covered under an insurance policy.

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No definition available.

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Amount awarded to other party in judgment or settlement of litigation.

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No definition available.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of loss contingency liability.

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Amount of cash outflow reducing loss contingency liability.

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Amount of damages awarded to the plaintiff in the legal matter.

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The value (monetary amount) of the award the plaintiff seeks in the legal matter.

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The amount of cash paid for the settlement of litigation or for other legal issues during the period.

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CONTINGENCIES (Details) - USD ($) $ in Millions	3 Months Ended			12 Months Ended
CONTINGENCIES (Details) - USD ($) $ in Millions	May 31, 2026	Feb. 22, 2026	Nov. 23, 2025	May 31, 2026	May 25, 2025	May 31, 2020
CONTINGENCIES
Insurance Settlements Receivable	$ 1.6			$ 1.6	$ 81.8
Threshold amount for Environmental Matters				1.0
Threatened Litigation
CONTINGENCIES
Loss contingency accrual	47.7			47.7	204.5
Settled Litigation
CONTINGENCIES
Litigation settlement amount						$ 101.7
Payments for Legal Settlements			$ 16.7		12.0
Receivables
CONTINGENCIES
Insurance Settlements Receivable					78.4
Other assets
CONTINGENCIES
Insurance Settlements Receivable					3.4
Other accrued liabilities \| Threatened Litigation
CONTINGENCIES
Loss contingency accrual					160.2
Other noncurrent liabilities \| Threatened Litigation
CONTINGENCIES
Loss contingency accrual					44.3
Beatrice
CONTINGENCIES
Accrual for environmental loss contingencies	39.4			39.4	36.0
Beatrice \| Other accrued liabilities
CONTINGENCIES
Accrual for environmental loss contingencies	$ 3.0			$ 3.0	$ 3.2
Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration]	Other Accrued Liabilities, Current			Other Accrued Liabilities, Current	Other Accrued Liabilities, Current
Beatrice \| Other noncurrent liabilities
CONTINGENCIES
Accrual for environmental loss contingencies	$ 36.4			$ 36.4	$ 32.8
Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration]	Other Liabilities, Noncurrent			Other Liabilities, Noncurrent	Other Liabilities, Noncurrent
Reese V Conagra Brands Inc
CONTINGENCIES
Loss contingency accrual payments				$ 141.1	$ 25.0
Reese V Conagra Brands Inc \| Scenario, Plan [Member]
CONTINGENCIES
Litigation settlement additional amount payable	$ 44.3			$ 44.3
Esparza v. Conagra Brands, Inc.
CONTINGENCIES
Loss contingency		$ 25.0
Loss contingency damages value	$ 22.9