Earnings per share (Tables)

12 Months Ended

Jan. 31, 2014

Earnings per share

Schedule of computation of earnings per share

Earnings per share is computed as follows (in thousands except per share data):

	2013
	Net Income		Weighted Average Shares		Per Share Amount
Basic earnings per share	$	1,025,116		322,886	$	3.17
Effect of dilutive share-based awards				968
Diluted earnings per share	$	1,025,116		323,854	$	3.17

	2012
	Net Income		Weighted Average Shares		Per Share Amount
Basic earnings per share	$	952,662		332,254	$	2.87
Effect of dilutive share-based awards				2,215
Diluted earnings per share	$	952,662		334,469	$	2.85

	2011
	Net Income		Weighted Average Shares		Per Share Amount
Basic earnings per share	$	766,685		341,234	$	2.25
Effect of dilutive share-based awards				3,883
Diluted earnings per share	$	766,685		345,117	$	2.22