v2.4.0.6
Financing Arrangements (Narrative) (Details) (USD $)
3 Months Ended 9 Months Ended 12 Months Ended 9 Months Ended
Jan. 27, 2012
Jan. 27, 2012
Apr. 29, 2011
Sep. 30, 2011
Jan. 27, 2012
Convertible Senior Notes 1.75% [Member]
Apr. 29, 2011
Convertible Senior Notes 1.75% [Member]
Jun. 10, 2008
Convertible Senior Notes 1.75% [Member]
Jan. 27, 2012
Warrants [Member]
Apr. 29, 2011
Warrants [Member]
Debt Instrument [Line Items]                  
Senior notes         $ 1,265,000,000 $ 1,265,000,000 $ 1,265,000,000    
Senior notes, stated annual interest rate percentage             1.75%    
Senior notes, maturity date         Jun. 01, 2013        
Number of business days after measurement period   5              
Convertible notes, measurement period for conversion, days   5              
Trading price of convertible notes during measurement period, maximum percentage   98.00%              
Trading price of convertible notes during measurement period, percentage 130.00%                
Note repurchase price, percentage of principal amount of notes   100.00%              
Numerator of common stock ratio for convertible notes         31.40        
Denominator of principal amount upon which conversion rate is based         1,000        
Conversion price of notes to shares of common stock $ 31.85 $ 31.85     $ 31.85        
Common stock price exceeded the conversion threshold price       $ 41.41          
Closing price of common stock 37.28 37.28              
Debt instrument, convertible, if-converted value in excess of principal         215,600,000        
Note hedges number of shares contracted to sell   31,800,000 31,800,000            
Note hedge exercise price $ 31.85 $ 31.85 $ 31.85            
Outstanding warrants, number of shares to acquire               39,700,000 39,700,000
Exercise price of warrants               41.28 41.28
Unhedged portion of notes 20.00% 20.00%              
Fair value of notes $ 1,630,800,000 $ 1,630,800,000              
Fair value percentage of face value of senior debt 129.00% 129.00%              
Approximate fair value of the principal amount of Notes  

As of January 27, 2012, the approximate fair value of the principal amount of the Notes, which includes the debt and equity components, was approximately $1,630.8 million, or 129% of the face value of the Notes, based upon quoted market information.