BUSINESS SEGMENTS AND RELATED INFORMATION - Narrative (Details) $ in Millions	3 Months Ended		12 Months Ended
	Aug. 25, 2019 USD ($) segment	Aug. 26, 2018 USD ($)	May 26, 2019 USD ($)
Revenue, Major Customer [Line Items]
Number of reportable segments | segment	4
Cumulative net derivative losses from economic hedges recognized in general corporate expenses	$ 5.8
Net losses incurred	6.9
Net gain incurred in prior fiscal years			$ 1.1
Losses expected to be reclassified in fiscal 2020	(4.7)
Gains expected to be reclassified in fiscal 2021 and thereafter	1.1
Total depreciation expense	81.7	$ 55.4
Net sales	2,390.7	$ 1,834.4
Accounts payable to suppliers who utilize third-party service	$ 196.6
Customer concentration risk | Wal-Mart Stores, Inc. and affiliates | Net sales
Revenue, Major Customer [Line Items]
Concentration risk (as a percent)	26.00%	25.00%
Customer concentration risk | Wal-Mart Stores, Inc. and affiliates | Net receivables
Revenue, Major Customer [Line Items]
Concentration risk (as a percent)	30.00%		30.00%
Non-US
Revenue, Major Customer [Line Items]
Net sales	$ 211.7	$ 211.9