ACQUISITIONS (Assets Acquired) (Details) (USD $) In Millions, unless otherwise specified	Feb. 24, 2013	May 27, 2012
Business Acquisition [Line Items]
Goodwill	$ 8,369.3	$ 4,015.4
Ralcorp [Member]
Business Acquisition [Line Items]
Cash and cash equivalents	321.8
Other current assets	899.0
Property, plant and equipment	1,028.2
Goodwill	4,264.5
Brands, trademarks and other intangibles	2,188.3
Other assets	27.7
Total assets acquired	8,729.5
Current liabilities	601.7
Noncurrent liabilities	3,056.9
Total liabilities assumed	3,658.6
Net assets acquired	$ 5,070.9

Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets

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Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities

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The net amount recognized as of the acquisition date for the aggregate identifiable assets acquired in excess of or less than the aggregate liabilities assumed.

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The amount of property, plant, and equipment recognized as of the acquisition date.

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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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