FAIR VALUE MEASUREMENTS - Schedule of Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Millions	Nov. 26, 2017	May 28, 2017
Assets:
Derivative assets	$ 4.2	$ 2.3
Available-for-sale securities	4.3	3.5
Total assets	8.5	5.8
Liabilities:
Derivative liabilities	2.0	1.3
Deferred compensation liabilities	53.7	47.2
Total liabilities	55.7	48.5
Level 1
Assets:
Derivative assets	3.3	2.0
Available-for-sale securities	4.3	3.5
Total assets	7.6	5.5
Liabilities:
Derivative liabilities	0.0	0.0
Deferred compensation liabilities	53.7	47.2
Total liabilities	53.7	47.2
Level 2
Assets:
Derivative assets	0.9	0.3
Available-for-sale securities	0.0	0.0
Total assets	0.9	0.3
Liabilities:
Derivative liabilities	2.0	1.3
Deferred compensation liabilities	0.0	0.0
Total liabilities	2.0	1.3
Level 3
Assets:
Derivative assets	0.0	0.0
Available-for-sale securities	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