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Reconciliation of The Differences Between Basic and Diluted EPS (Tables)
12 Months Ended
Mar. 31, 2011
Reconciliation of The Differences Between Basic and Diluted EPS (Tables) [Abstract]  
Reconciliation of the differences between basic and diluted EPS
 
Reconciliation of the differences between basic and diluted EPS for the fiscal years ended March 31, 2009, 2010 and 2011 is as follows:
 
                         
    Yen in millions
    Fiscal year ended March 31
    2009   2010   2011
 
Net loss attributable to Sony Corporation’s stockholders for basic and diluted EPS computation
    (98,938 )     (40,802 )     (259,585 )
                         
     
    Thousands of shares
     
Weighted-average shares outstanding
    1,003,499       1,003,520       1,003,559  
Effect of dilutive securities:
                       
Stock acquisition rights
                 
Convertible bonds
                 
                         
Weighted-average shares for diluted EPS computation
    1,003,499       1,003,520       1,003,559  
                         
     
    Yen
     
Basic EPS
    (98.59 )     (40.66 )     (258.66 )
                         
Diluted EPS
    (98.59 )     (40.66 )     (258.66 )