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DERIVATIVES FINANCIAL INSTRUMENTS (Gains) Losses Recognized in Earnings on Mark-to-Market Contracts (Details) (Not Designated as Hedging Instrument [Member], USD $)
In Millions, unless otherwise specified
12 Months Ended
Apr. 29, 2012
May 01, 2011
May 02, 2010
Derivative Instruments, Gain (Loss) [Line Items]      
Derivative Instruments, Gain (Loss) Recognized in Income, Net $ 14.1 $ 54.4 $ (103.5)
Commodity Contract [Member] | Cost of Sales [Member]
     
Derivative Instruments, Gain (Loss) [Line Items]      
Derivative Instruments, Gain (Loss) Recognized in Income, Net 6.4 63.4 (92.4)
Foreign Exchange Contract [Member] | Operating Expense [Member]
     
Derivative Instruments, Gain (Loss) [Line Items]      
Derivative Instruments, Gain (Loss) Recognized in Income, Net $ 7.7 $ (9.0) $ (11.1)