GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS - Schedule of Change in Carrying Amount of Goodwill (Details) $ in Millions	6 Months Ended
Nov. 26, 2017 USD ($)
Goodwill
Balance as of May 28, 2017	$ 4,301.1
Acquisitions	156.5
Purchase accounting adjustments	(1.5)
Currency translation	0.9
Balance as of November 26, 2017	4,457.0
Grocery & Snacks
Goodwill
Balance as of May 28, 2017	2,439.1
Acquisitions	156.5
Purchase accounting adjustments	(1.5)
Currency translation	0.0
Balance as of November 26, 2017	2,594.1
Refrigerated & Frozen
Goodwill
Balance as of May 28, 2017	1,037.3
Acquisitions	0.0
Purchase accounting adjustments	0.0
Currency translation	0.9
Balance as of November 26, 2017	1,038.2
International
Goodwill
Balance as of May 28, 2017	253.6
Acquisitions	0.0
Purchase accounting adjustments	0.0
Currency translation	0.0
Balance as of November 26, 2017	253.6
Foodservice
Goodwill
Balance as of May 28, 2017	571.1
Acquisitions	0.0
Purchase accounting adjustments	0.0
Currency translation	0.0
Balance as of November 26, 2017	$ 571.1

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.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975

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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 foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits 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 adjustments after acquisition date under purchase accounting 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 25
-Paragraph 16
-URI http://asc.fasb.org/extlink&oid=84229725&loc=d3e961-128460

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
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-Section 50
-Paragraph 1
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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