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FAIR VALUE MEASUREMENTS - Narrative (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Aug. 27, 2017	Feb. 26, 2017	Feb. 25, 2018	May 28, 2017
Goodwill [Line Items]
Charge recognized for the impairment of certain long-lived assets	$ 4.7
Carrying amount of long-term debt (including current installments)			$ 3,310.0	$ 2,970.0
Estimated fair value of debt			$ 3,570.0	$ 3,320.0
International
Goodwill [Line Items]
Goodwill impairment charges		$ 183.1
Impairments of non-amortizing intangible assets		24.4
Grocery & Snacks
Goodwill [Line Items]
Impairments of non-amortizing intangible assets		$ 1.1