Earnings Per Share (Details) (USD $)	3 Months Ended		9 Months Ended
	Oct. 27, 2012	Oct. 29, 2011	Oct. 27, 2012	Oct. 29, 2011
Earnings Per Share [Abstract]
Weighted average shares excluded from calculation of diluted EPS	7,700	800	35,200	2,600
Basic EPS, Shares	218,583,000	224,540,000	219,917,000	227,125,000
Basic EPS, Amount	$ 0.73	$ 0.64	$ 2.50	$ 2.05
Effect of dilutive common stock equivalents, Shares	3,602,000	3,920,000	3,679,000	3,980,000
Effect of dilutive common stock equivalents, Amount	$ (0.01)	$ (0.01)	$ (0.04)	$ (0.04)
Diluted EPS, Shares	222,185,000	228,460,000	223,596,000	231,105,000
Diluted EPS, Amount	$ 0.72	$ 0.63	$ 2.46	$ 2.01