ACQUISITIONS (Narrative) (Details) - USD ($) $ in Millions	1 Months Ended			12 Months Ended
	May 31, 2015	Jul. 31, 2014	Sep. 30, 2013	May 29, 2016	May 31, 2015	May 25, 2014
Business Acquisitions [Line Items]
Purchase price allocated to goodwill	$ 4,544.6			$ 4,533.8	$ 4,544.6	$ 4,548.6
Consideration paid for the merger				0.0	$ 95.7	$ 39.9
Blake's All Natural Foods
Business Acquisitions [Line Items]
Payments to acquire a business	$ 20.7
Purchase price allocated to goodwill				$ 20.0
TaiMei Potato Industry Limited
Business Acquisitions [Line Items]
Payments to acquire a business		$ 92.2
Purchase price allocated to goodwill		23.8
Consideration paid for the merger		74.9
Brands, trademarks and other intangibles		$ 3.5
Harlan Bakeries
Business Acquisitions [Line Items]
Payments to acquire a business			$ 39.9