EARNINGS PER SHARE - Schedule of basic and diluted earnings per share (Details) - USD ($) shares in Millions, $ in Millions	3 Months Ended				6 Months Ended
	Nov. 24, 2024	Aug. 25, 2024	Nov. 26, 2023	Aug. 27, 2023	Nov. 24, 2024	Nov. 26, 2023
EARNINGS PER SHARE
Net income attributable to Conagra Brands, Inc. common stockholders:	$ 284.5	$ 466.8	$ 286.2	$ 319.7	$ 751.3	$ 605.9
Basic weighted average shares outstanding (in shares)	478.0		478.7		478.5	478.4
Add: Dilutive effect of stock options, restricted stock unit awards, and other dilutive securities	1.3		1.1		1.4	1.4
Diluted weighted average shares outstanding (in shares)	479.3		479.8		479.9	479.8