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DEBT Debt Retirement (Details) (USD $)
In Millions, except Share data, unless otherwise specified
6 Months Ended
Oct. 27, 2013
Bank of America Term Loan
 
Debt Instrument [Line Items]  
Repayments of Long-term Debt $ 200.0
Senior Unsecured Notes, Seven Point Seven Five Percent, Due May 2013
 
Debt Instrument [Line Items]  
Repayments of Long-term Debt 55.0
Senior Unsecured Convertible Notes, Four Percent, Due June 2013
 
Debt Instrument [Line Items]  
Repayments of Long-term Debt $ 400.0
Stock Issued During Period, Shares, Conversion of Convertible Securities 3,894,476
Stock Repurchased and Retired During Period, Shares 34
Net Shares Retired, Settlement of Convertible Notes 3,894,510