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NET INCOME PER SHARE (Tables)
3 Months Ended
Jun. 30, 2011
NET INCOME PER SHARE  
Schedule Computations of Basic and Diluted Earnings Per Share
    Three Months Ended  
      June 30,    
(In millions, except per share data)   2011   2010  
 
Net income $ 221 $   96
Shares used to compute net income per share:          
Weighted-average common stock outstanding - basic   331     328
Dilutive potential common shares   6     4
 
Weighted-average common stock outstanding - diluted   337     332
Net income per share:          
Basic $ 0.67 $   0.29
Diluted $ 0.66 $   0.29