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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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INVESTMENTS IN JOINT VENTURES - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	May 31, 2020	May 26, 2019	May 27, 2018
Schedule of Equity Method Investments [Line Items]
Dividends received from equity method investments	$ 51.4	$ 55.0	$ 62.5
Equity method investments
Schedule of Equity Method Investments [Line Items]
Purchases from equity method investees	$ 32.5	39.4	$ 34.9
Ardent Mills
Schedule of Equity Method Investments [Line Items]
Ownership interest (as a percent)	44.00%
Others
Schedule of Equity Method Investments [Line Items]
Ownership interest (as a percent)	50.00%
Other assets
Schedule of Equity Method Investments [Line Items]
Carrying value of equity method investments	$ 798.7	$ 796.3