FAIR VALUE MEASUREMENTS - Schedule of Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Millions	Aug. 25, 2019	May 26, 2019
Assets:
Derivative assets	$ 2.6	$ 5.9
Marketable securities	16.3	15.7
Deferred compensation assets	10.5	10.7
Total assets	29.4	32.3
Liabilities:
Derivative liabilities	1.2	1.4
Deferred compensation liabilities	73.3	70.4
Total liabilities	74.5	71.8
Level 1
Assets:
Derivative assets	1.9	3.0
Marketable securities	16.3	15.7
Deferred compensation assets	10.5	10.7
Total assets	28.7	29.4
Liabilities:
Derivative liabilities	0.0	0.0
Deferred compensation liabilities	73.3	70.4
Total liabilities	73.3	70.4
Level 2
Assets:
Derivative assets	0.7	2.9
Marketable securities	0.0	0.0
Deferred compensation assets	0.0	0.0
Total assets	0.7	2.9
Liabilities:
Derivative liabilities	1.2	1.4
Deferred compensation liabilities	0.0	0.0
Total liabilities	1.2	1.4
Level 3
Assets:
Derivative assets	0.0	0.0
Marketable securities	0.0	0.0
Deferred compensation assets	0.0	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