EARNINGS PER SHARE - Schedule of basic and diluted earnings per share (Details) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Aug. 25, 2024	Aug. 27, 2023
EARNINGS PER SHARE
Net income attributable to Conagra Brands, Inc. common stockholders:	$ 466.8	$ 319.7
Basic weighted average shares outstanding (in shares)	478.8	478.2
Add: Dilutive effect of stock options, restricted stock unit awards, and other dilutive securities	1.5	1.6
Diluted weighted average shares outstanding (in shares)	480.3	479.8