GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS (Change in Carrying Amount of Goodwill) (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Feb. 23, 2014
Goodwill [Line Items]
Goodwill, Beginning Balance	$ 8,426.7
Currency translation and purchase accounting adjustments	0.5
Goodwill, Ending Balance	8,427.2
Consumer Foods
Goodwill [Line Items]
Goodwill, Beginning Balance	3,760.5
Currency translation and purchase accounting adjustments	(21.7)
Goodwill, Ending Balance	3,738.8
Commercial Foods
Goodwill [Line Items]
Goodwill, Beginning Balance	857.4
Currency translation and purchase accounting adjustments	0.4
Goodwill, Ending Balance	857.8
Private Brands
Goodwill [Line Items]
Goodwill, Beginning Balance	3,808.8
Currency translation and purchase accounting adjustments	21.8
Goodwill, Ending Balance	$ 3,830.6