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FAIR VALUE MEASUREMENTS Schedule of Fair Value and Carrying Value of Debt (Details) (USD $)
In Millions, unless otherwise specified
Apr. 28, 2013
Apr. 29, 2012
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term Debt, Fair Value $ 2,732.9 $ 2,176.5
Total debt $ 2,479.1 $ 1,937.3