Condensed Consolidated Statements Of Earnings (store, USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jul. 28, 2012	Jul. 30, 2011	Jul. 28, 2012	Jul. 30, 2011
Condensed Consolidated Statements Of Earnings [Abstract]
Sales	$ 2,340,855	$ 2,089,410	$ 4,697,696	$ 4,163,986
Costs and Expenses
Costs of goods sold	1,689,643	1,524,307	3,368,770	3,005,513
Selling, general and administrative	352,089	320,885	689,900	630,045
Interest expense, net	2,086	2,569	4,318	5,064
Total costs and expenses	2,043,818	1,847,761	4,062,988	3,640,622
Earnings before taxes	297,037	241,649	634,708	523,364
Provision for taxes on earnings	115,013	93,373	244,071	202,115
Net earnings	$ 182,024	$ 148,276	$ 390,637	$ 321,249
Earnings per share
Basic	$ 0.83	$ 0.65	$ 1.77	$ 1.41
Diluted	$ 0.81	$ 0.64	$ 1.74	$ 1.38
Weighted average shares outstanding (000)
Basic	220,065	227,305	220,585	228,417
Diluted	223,605	231,176	224,289	232,407
Dividends
Cash dividends declared per share	$ 0.14	$ 0.11	$ 0.14	$ 0.11
Stores open at end of period (in number of stores)	1,174	1,091	1,174	1,091