Common Stock (Share Repurchases) (Tables)

12 Months Ended

Jan. 31, 2015

Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract]

Share Repurchase Activity

Share repurchase activity is as follows:

	Fiscal Year
($ and shares in millions except average per share cost)	2014		2013		2012
Number of shares repurchased	30		26		34
Total cost	$	1,164	$	1,009	$	1,026
Average per share cost including commissions	$	39.28	$	38.42	$	29.89