Share Repurchases (Tables)

3 Months Ended

Apr. 30, 2015

Share Repurchases [Abstract]

Schedule of Company's share repurchases

The following table provides, on a trade date basis, the number of shares repurchased, average price paid per share and total amount paid for share repurchases for the three months endedApril 30, 2015 and 2014:

	Three Months Ended April 30,
(Amounts in millions, except per share data)	2015		2014
Total number of shares repurchased	3.5		8.3
Average price paid per share	$	80.74	$	75.37
Total amount paid for share repurchases	$	280	$	626