BUSINESS SEGMENTS AND RELATED INFORMATION (Narrative) (Details) $ in Millions	3 Months Ended
	Aug. 30, 2015 USD ($) segment	Aug. 24, 2014	May. 31, 2015
Segment Reporting [Abstract]
Number of reportable segments | segment	2
Cumulative net derivative losses from economic hedges recognized in corporate	$ 17.1
Net derivative losses recognized in general corporate expenses	8.9
Derivative loss to be reclassified to segment operating results thereafter	8.2
Reclassify losses in 2016	16.8
Reclassify losses in 2017 and thereafter	$ 0.3
Percentage of consolidated net sales in consumer food segment accounted by Wal-Mart Stores, Inc. and its affiliates	21.00%	20.00%
Percentage of consolidated net receivables in commercial foods accounted by Wal-Mart Stores, Inc. and its affiliates	15.00%		16.00%