Share Repurchases (Tables)

9 Months Ended

Oct. 31, 2015

Class of Stock Disclosures [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 nine months endedOctober 31, 2015 and 2014:

	Nine Months Ended October 31,
(Amounts in millions, except per share data)	2015		2014
Total number of shares repurchased	23.2		13.4
Average price paid per share	$	74.20	$	75.82
Total amount paid for share repurchases	$	1,720	$	1,015