GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS (Change in Carrying Amount of Goodwill) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
Feb. 22, 2015	Feb. 22, 2015
Goodwill [Line Items]
Balance as of		$ 7,828.5us-gaap_Goodwill
Impairment	(1,290.0)us-gaap_GoodwillImpairmentLoss	(1,502.1)us-gaap_GoodwillImpairmentLoss
Acquisitions		20.3us-gaap_GoodwillAcquiredDuringPeriod
Currency translation adjustments		(41.7)
Balance as of	6,305.0us-gaap_Goodwill	6,305.0us-gaap_Goodwill
Consumer Foods
Goodwill [Line Items]
Balance as of		3,748.5
Impairment		0
Acquisitions		0
Currency translation adjustments		(23.5)
Balance as of	3,725.0	3,725.0
Commercial Foods
Goodwill [Line Items]
Balance as of		865.4
Impairment		0
Acquisitions		20.3
Currency translation adjustments		(1.5)
Balance as of	884.2	884.2
Private Brands
Goodwill [Line Items]
Balance as of		3,214.6
Impairment	(1,290.0)	(1,502.1)
Acquisitions		0
Currency translation adjustments		(16.7)
Balance as of	$ 1,695.8	$ 1,695.8

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of increase (decrease) from foreign currency translation adjustments and purchase accounting adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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