FAIR VALUE MEASUREMENTS - Fair Value Hierarchy (Details) - Recurring - USD ($) $ in Millions	Nov. 24, 2019	May 26, 2019
Assets:
Deferred compensation assets	$ 0.5	$ 0.5
Derivative assets	2.4	0.4
Total assets	2.9	0.9
Liabilities:
Derivative liabilities		3.8
Deferred compensation liabilities	19.3	15.1
Total liabilities	19.3	18.9
Level 1
Assets:
Deferred compensation assets	0.5	0.5
Total assets	0.5	0.5
Level 2
Assets:
Derivative assets	2.4	0.4
Total assets	2.4	0.4
Liabilities:
Derivative liabilities		3.8
Deferred compensation liabilities	19.3	15.1
Total liabilities	$ 19.3	$ 18.9