Earnings Per Share (Details) - $ / shares shares in Thousands	3 Months Ended		9 Months Ended
	Oct. 29, 2016	Oct. 31, 2015	Oct. 29, 2016	Oct. 31, 2015
Earnings Per Share [Abstract]
Basic EPS (in shares)	390,870	401,494	393,412	404,636
Basic EPS (in dollars per share)	$ 0.63	$ 0.54	$ 2.08	$ 1.87
Effect of dilutive common stock equivalents, (in shares)	2,502	3,010	2,644	3,252
Effect of dilutive common stock equivalents, (in dollars per share)	$ (0.01)	$ (0.01)	$ (0.02)	$ (0.02)
Diluted EPS (in shares)	393,372	404,504	396,056	407,888
Diluted EPS (in dollars per share)	$ 0.62	$ 0.53	$ 2.06	$ 1.85