Condensed Consolidated Statements of Earnings shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 29, 2017 USD ($) stores $ / shares shares	Jul. 30, 2016 USD ($) stores $ / shares shares	Jul. 29, 2017 USD ($) stores $ / shares shares	Jul. 30, 2016 USD ($) stores $ / shares shares
Income Statement [Abstract]
Sales	$ 3,431,603	$ 3,180,917	$ 6,738,032	$ 6,269,912
Costs and Expenses
Cost of goods sold	2,420,942	2,251,845	4,750,908	4,428,050
Selling, general and administrative	498,276	469,511	973,095	906,435
Interest expense, net	2,341	4,213	5,510	8,577
Total costs and expenses	2,921,559	2,725,569	5,729,513	5,343,062
Earnings before taxes	510,044	455,348	1,008,519	926,850
Provision for taxes on earnings	193,505	173,442	370,962	354,310
Net earnings	$ 316,539	$ 281,906	$ 637,557	$ 572,540
Earnings per share
Basic (in dollars per share) | $ / shares	$ 0.83	$ 0.72	$ 1.66	$ 1.45
Diluted (in dollars per share) | $ / shares	$ 0.82	$ 0.71	$ 1.64	$ 1.44
Weighted average shares outstanding
Basic (in shares) | shares	383,011	393,568	384,722	394,684
Diluted (in shares) | shares	385,571	395,930	387,657	397,381
Dividends
Cash dividends declared per share (in dollars per share) | $ / shares	$ 0.1600	$ 0.1350	$ 0.3200	$ 0.2700
Stores open at end of period (in number of stores) | stores	1,589	1,501	1,589	1,501