EARNINGS PER SHARE - Variable Interest Entity - Consolidated - Acquisition - Additional Information (Details) - Lamb Weston BSW, LLC $ / shares in Units, $ in Millions	12 Months Ended
	May 26, 2019 USD ($) $ / shares
Pro Forma Information
Net income available to common stockholders | $	$ (9.4)
Basic and diluted earning per share (in dollars per share) | $ / shares	$ (0.06)