GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS (Change in Carrying Amount of Goodwill) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
May 26, 2013	May 27, 2012
Goodwill [Roll Forward]
Goodwill, Beginning Balance	$ 4,015.4	$ 3,609.4
Acquisitions	4,450.6	418.8
Currency translation and purchase accounting adjustments	(15.3)	(12.8)
Goodwill, Ending Balance	8,450.7	4,015.4
Consumer Foods
Goodwill [Roll Forward]
Goodwill, Beginning Balance	3,886.7	3,479.7
Acquisitions	100.1	418.8
Currency translation and purchase accounting adjustments	(13.8)	(11.8)
Goodwill, Ending Balance	3,973.0	3,886.7
Commercial Foods
Goodwill [Roll Forward]
Goodwill, Beginning Balance	128.7	129.7
Acquisitions	0	0
Currency translation and purchase accounting adjustments	0.2	(1.0)
Goodwill, Ending Balance	128.9	128.7
Ralcorp
Goodwill [Roll Forward]
Goodwill, Beginning Balance	0	0
Acquisitions	4,350.5	0
Currency translation and purchase accounting adjustments	(1.7)	0
Goodwill, Ending Balance	$ 4,348.8	$ 0

Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions.

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- Definition

The aggregate amount of goodwill acquired in the period and allocated to the reportable segment. The value is stated at fair value based on the purchase price allocation.

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- Definition

The increase (decrease) in the recorded value of goodwill for foreign currency translation adjustments and purchase accounting adjustments needed to revise the carrying amount of goodwill to fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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