v2.4.0.6
Financing Arrangements (Remaining Debt Discount And Issuance Costs) (Details) (Convertible Senior Notes 1.75% [Member], USD $)
In Millions, unless otherwise specified
Jan. 27, 2012
Apr. 29, 2011
Convertible Senior Notes 1.75% [Member]
   
Debt Instrument [Line Items]    
Remaining debt discount $ 76.2 $ 114.6
Remaining issuance costs $ 6.6  
Remaining life of the Notes (years) 1.3