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DISCONTINUED OPERATIONS, OTHER ASSETS HELD FOR SALE, AND THE FORMATION OF ARDENT MILLS (Assets and Liabilities Classified as Held for Sale) (Parenthetical) (Details) (USD $)
In Millions, unless otherwise specified
Nov. 23, 2014
May 25, 2014
Discontinued Operations and Disposal Groups [Abstract]    
Allowance for doubtful accounts $ 0cag_DisposalGroupIncludingDiscontinuedOperationAllowanceforDoubtfulAccountsReceivable $ 1.2cag_DisposalGroupIncludingDiscontinuedOperationAllowanceforDoubtfulAccountsReceivable