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Share Repurchases (Tables)
3 Months Ended
Apr. 30, 2013
Share Repurchases [Abstract]  
Schedule Of Company's Share Repurchases
Cash paid for share repurchases for the three months ended April 30, 2013 and 2012, under the recently replaced share repurchase program, was as follows:

 
Three Months Ended April 30,
(Amounts in millions, except per share data)
 
2013
 
2012
Total number of shares repurchased
 
30.8
 
26.3
Average price paid per share
 
$72.87
 
$60.43
Total share repurchases
 
$2,246
 
$1,589