Condensed Consolidated Statements Of Earnings (store, USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Oct. 27, 2012	Oct. 29, 2011	Oct. 27, 2012	Oct. 29, 2011
Income Statement [Abstract]
Sales	$ 2,262,723	$ 2,046,427	$ 6,960,419	$ 6,210,413
Costs and Expenses
Costs of goods sold	1,648,997	1,490,213	5,017,767	4,495,726
Selling, general and administrative	357,983	332,226	1,047,883	962,271
Interest expense, net	1,643	2,565	5,961	7,629
Total costs and expenses	2,008,623	1,825,004	6,071,611	5,465,626
Earnings before taxes	254,100	221,423	888,808	744,787
Provision for taxes on earnings	94,576	77,454	338,647	279,569
Net earnings	$ 159,524	$ 143,969	$ 550,161	$ 465,218
Earnings per share
Basic	$ 0.73	$ 0.64	$ 2.50	$ 2.05
Diluted	$ 0.72	$ 0.63	$ 2.46	$ 2.01
Weighted average shares outstanding (000)
Basic	218,583	224,540	219,917	227,125
Diluted	222,185	228,460	223,596	231,105
Dividends
Cash dividends declared per share	$ 0.14	$ 0.11	$ 0.28	$ 0.22
Stores open at end of period (in number of stores)	1,205	1,126	1,205	1,126