Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total		Common stock	Additional paid-in capital	Treasury stock	Accumulated other comprehensive income (loss)	Retained earnings
Beginning balance (in shares) at Jan. 30, 2016			402,339
Beginning balance, value at Jan. 30, 2016	$ 2,471,991		$ 4,023	$ 1,122,329	$ (229,525)	$ 182	$ 1,574,982
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	1,117,654	[1]					1,117,654
Unrealized investment loss, net	(91)					(91)
Common stock issued under stock plans, net of shares used for tax withholding (in shares)			1,192
Common stock issued under stock plans, net of shares used for tax withholding, value	(24,782)		$ 12	18,527	(43,321)
Tax benefit from equity issuance	23,331			23,331
Stock-based compensation	$ 74,554			74,554
Common stock repurchased (in shares)	(11,600)		(11,638)
Common stock repurchased	$ (700,000)		$ (116)	(23,026)			(676,858)
Dividends declared	(214,640)						(214,640)
Ending balance (in shares) at Jan. 28, 2017			391,893
Ending balance, value at Jan. 28, 2017	2,748,017		$ 3,919	1,215,715	(272,846)	91	1,801,138
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	1,362,753						1,362,753
Unrealized investment loss, net	(64)					(64)
Common stock issued under stock plans, net of shares used for tax withholding (in shares)			1,214
Common stock issued under stock plans, net of shares used for tax withholding, value	(26,965)		$ 12	18,456	(45,433)
Stock-based compensation	$ 87,417			87,417
Common stock repurchased (in shares)	(13,500)		(13,489)
Common stock repurchased	$ (875,000)		$ (135)	(31,013)			(843,852)
Dividends declared	(247,526)						(247,526)
Ending balance (in shares) at Feb. 03, 2018			379,618
Ending balance, value at Feb. 03, 2018	3,049,308		$ 3,796	1,292,364	(318,279)	27	2,071,400
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	1,587,457						1,587,457
Unrealized investment loss, net	(27)					$ (27)
Common stock issued under stock plans, net of shares used for tax withholding (in shares)			1,097
Common stock issued under stock plans, net of shares used for tax withholding, value	(34,272)		$ 11	20,101	(54,384)
Stock-based compensation	$ 95,585			95,585
Common stock repurchased (in shares)	(12,500)		(12,473)
Common stock repurchased	$ (1,075,000)		$ (125)	(32,085)			(1,042,790)
Dividends declared	(337,189)						(337,189)
Ending balance (in shares) at Feb. 02, 2019			368,242
Ending balance, value at Feb. 02, 2019	$ 3,305,746		$ 3,682	$ 1,375,965	$ (372,663)		$ 2,298,762

[1] As the result of the adoption of ASU 2016-18, Statement of Cash Flow (Topic 230): Restricted Cash, the prior year amounts were retrospectively adjusted to include restricted cash and cash equivalents. See Note A.