Earnings per share (Tables)

9 Months Ended

Oct. 28, 2011

Earnings per share

Schedule of computation of earnings per share

	13 Weeks Ended October 28, 2011					13 Weeks Ended October 29, 2010
	Net Income		Shares	Per Share Amount		Net Income		Shares	Per Share Amount
Basic earnings per share	$	171,164	341,955	$	0.50	$	128,120	341,062	$	0.38
Effect of dilutive share-based awards			3,822					3,677
Diluted earnings per share	$	171,164	345,777	$	0.50	$	128,120	344,739	$	0.37

	39 Weeks Ended October 28, 2011					39 Weeks Ended October 29, 2010
	Net Income		Shares	Per Share Amount		Net Income		Shares	Per Share Amount
Basic earnings per share	$	474,175	341,670	$	1.39	$	405,311	340,961	$	1.19
Effect of dilutive share-based awards			3,928					3,667
Diluted earnings per share	$	474,175	345,598	$	1.37	$	405,311	344,628	$	1.18