DERIVATIVE FINANCIAL INSTRUMENTS - Schedule of Derivative Assets and Liabilities Representing a Right to Reclaim Cash Collateral or Obligation to Return Cash Collateral (Details) - USD ($) $ in Millions	May 26, 2019	May 27, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Prepaid expenses and other current assets	$ 5.9	$ 4.4
Other accrued liabilities	$ 1.4	$ 0.1