PENSION AND POSTRETIREMENT BENEFITS - Schedule of Contributions for Plans That Are Not Individually Significant (Details) - USD ($) $ in Millions	12 Months Ended
	May 26, 2024	May 28, 2023	May 29, 2022
PENSION AND POSTRETIREMENT BENEFITS
Total Contributions	$ 9.0	$ 9.2	$ 8.1
Central States Southeast and Southwest Areas Pension Fund [Member]
PENSION AND POSTRETIREMENT BENEFITS
Total Contributions	2.4	2.6	2.5
Western Conference Of Teamsters Pension Plan [Member]
PENSION AND POSTRETIREMENT BENEFITS
Total Contributions	4.3	4.4	3.8
Retirement Plan Name, Other [Member]
PENSION AND POSTRETIREMENT BENEFITS
Total Contributions	$ 2.3	$ 2.2	$ 1.8