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FAIR VALUE MEASUREMENTS Fair Value and Carrying Value of Debt (Details) (USD $)
In Millions, unless otherwise specified
Oct. 28, 2012
Apr. 29, 2012
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term Debt, Fair Value $ 2,437.3 $ 2,176.5
Long-term Debt $ 2,323.9 $ 1,937.3