FAIR VALUE MEASUREMENTS - Schedule of Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Millions	Feb. 26, 2017	May 29, 2016
Assets:
Derivative assets	$ 2.1	$ 24.1
Available-for-sale securities	3.7	3.0
Total assets	5.8	27.1
Liabilities:
Derivative liabilities	0.7	0.6
Deferred compensation liabilities	47.1	40.0
Total liabilities	47.8	40.6
Level 1
Assets:
Derivative assets	1.5	3.3
Available-for-sale securities	3.7	3.0
Total assets	5.2	6.3
Liabilities:
Derivative liabilities	0.0	0.0
Deferred compensation liabilities	47.1	40.0
Total liabilities	47.1	40.0
Level 2
Assets:
Derivative assets	0.6	20.8
Available-for-sale securities	0.0	0.0
Total assets	0.6	20.8
Liabilities:
Derivative liabilities	0.7	0.6
Deferred compensation liabilities	0.0	0.0
Total liabilities	0.7	0.6
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