FAIR VALUE MEASUREMENTS - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
Aug. 29, 2021	Aug. 30, 2020	May 30, 2021
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Asset impairment charges	$ 0.7	$ 3.4
Carrying amount of long-term debt (including current installments)	8,800.0		$ 8,300.0
Estimated fair value of debt	$ 10,320.0		$ 9,760.0
Grocery & Snacks
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Asset impairment charges		$ 3.0

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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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, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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