PENSION AND POSTRETIREMENT BENEFITS - Schedule of Contributions for Plans That Are Not Individually Significant (Details) - USD ($) $ in Millions	12 Months Ended
May 31, 2026	May 25, 2025	May 26, 2024
PENSION AND POSTRETIREMENT BENEFITS
Contributions by the Company	$ 9.1	$ 9.5	$ 9.0
Central States Southeast and Southwest Areas Pension Fund [Member]
PENSION AND POSTRETIREMENT BENEFITS
Contributions by the Company	2.5	2.5	2.4
Western Conference Of Teamsters Pension Plan [Member]
PENSION AND POSTRETIREMENT BENEFITS
Contributions by the Company	4.5	4.7	4.3
Retirement Plan Name, Other [Member]
PENSION AND POSTRETIREMENT BENEFITS
Contributions by the Company	$ 2.1	$ 2.3	$ 2.3

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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