Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jul. 28, 2012	Jul. 30, 2011
Cash Flows From Operating Activities
Net earnings	$ 390,637	$ 321,249
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	87,684	77,416
Stock-based compensation	24,241	19,280
Deferred income taxes	93	19,818
Tax benefit from equity issuance	24,577	12,336
Excess tax benefit from stock-based compensation	(23,984)	(11,829)
Change in assets and liabilities:
Merchandise inventory	(89,022)	(102,606)
Other current assets	(24,845)	(22,264)
Accounts payable	156,026	(32,338)
Other current liabilities	(44,081)	(119,906)
Other long-term, net	2,837	509
Net cash provided by operating activities	504,163	161,665
Cash Flows From Investing Activities
Additions to property and equipment	(152,105)	(145,720)
Increase in restricted cash and investments	(4,970)	(73,465)
Purchases of investments	(424)
Proceeds from investments	704	10,168
Net cash used in investing activities	(156,795)	(209,017)
Cash Flows From Financing Activities
Excess tax benefit from stock-based compensation	23,984	11,829
Issuance of common stock related to stock plans	11,467	10,322
Treasury stock purchased	(24,603)	(14,157)
Repurchase of common stock	(223,743)	(230,227)
Dividends paid	(63,262)	(51,623)
Net cash used in financing activities	(276,157)	(273,856)
Net increase (decrease) in cash and cash equivalents	71,211	(321,208)
Cash and cash equivalents:
Beginning of period	649,835	833,924
End of period	721,046	512,716
Supplemental Cash Flow Disclosures
Interest paid	4,834	4,834
Income taxes paid	235,260	225,265
Non-Cash Investing Activities
Increase in fair value of investment securities	$ 25	$ 128