FAIR VALUE MEASUREMENTS - Schedule of Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Millions	Feb. 24, 2019	May 27, 2018
Assets:
Derivative assets	$ 5.6	$ 4.4
Equity securities	5.3	4.8
Deferred compensation assets	11.1
Total assets	22.0	9.2
Liabilities:
Derivative liabilities	2.7	0.1
Deferred compensation liabilities	68.9	51.6
Total liabilities	71.6	51.7
Level 1
Assets:
Derivative assets	3.1	1.7
Equity securities	5.3	4.8
Deferred compensation assets	11.1
Total assets	19.5	6.5
Liabilities:
Derivative liabilities	0.0	0.0
Deferred compensation liabilities	68.9	51.6
Total liabilities	68.9	51.6
Level 2
Assets:
Derivative assets	2.5	2.7
Equity securities	0.0	0.0
Deferred compensation assets	0.0
Total assets	2.5	2.7
Liabilities:
Derivative liabilities	2.7	0.1
Deferred compensation liabilities	0.0	0.0
Total liabilities	2.7	0.1
Level 3
Assets:
Derivative assets	0.0	0.0
Equity securities	0.0	0.0
Deferred compensation assets	0.0
Total assets	0.0	0.0
Liabilities:
Derivative liabilities	0.0	0.0
Deferred compensation liabilities	0.0	0.0
Total liabilities	$ 0.0	$ 0.0