GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS - Schedule of change in carrying amount of goodwill (Details) - USD ($) $ in Millions	3 Months Ended			12 Months Ended
	Nov. 24, 2024	May 26, 2024	Aug. 28, 2022	May 25, 2025	May 26, 2024	May 28, 2023
GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS
Balance				$ 10,325.9	$ 10,852.6
Currency translation				(0.3)	(0.2)
Acquisitions				176.3
Impairment	$ 0.0				(526.5)	$ (141.7)
Balance		$ 10,325.9		10,501.9	10,325.9	10,852.6
Grocery & Snacks
GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS
Balance				4,486.8	4,486.8
Acquisitions				176.3
Balance		4,486.8		4,663.1	4,486.8	4,486.8
Refrigerated & Frozen
GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS
Balance				4,916.6	5,443.1
Impairment		(526.5)	$ (141.7)		(526.5)	(141.7)
Balance		4,916.6		4,916.6	4,916.6	5,443.1
International
GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS
Balance				202.4	202.6
Currency translation				(0.3)	(0.2)
Balance		202.4		202.1	202.4	202.6
Food service
GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS
Balance				720.1	720.1
Balance		$ 720.1		$ 720.1	$ 720.1	$ 720.1