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. 28, 2017			391,893
Beginning 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]					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]
Cash dividends declared per share (in dollars per share)	$ 0.64
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)	0	2,298,762
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends declared per share (in dollars per share)	$ 0.90
Net earnings	$ 1,660,928						1,660,928
Unrealized investment loss, net	0
Common stock issued under stock plans, net of shares used for tax withholding (in shares)			793
Common stock issued under stock plans, net of shares used for tax withholding, value	(38,456)		$ 8	22,201	(60,665)
Stock-based compensation	$ 95,438			95,438
Common stock repurchased (in shares)	(12,300)		(12,260)
Common stock repurchased	$ (1,275,000)		$ (122)	(35,297)			(1,239,581)
Dividends declared	(369,793)						(369,793)
Ending balance (in shares) at Feb. 01, 2020			356,775
Ending balance, value at Feb. 01, 2020	$ 3,359,249		$ 3,568	$ 1,458,307	$ (433,328)	$ 0	$ 2,330,702
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends declared per share (in dollars per share)	$ 1.02

[1] As the result of the adoption of ASU 2016-18, Statement of Cash Flow (Topic 230): Restricted Cash, in fiscal 2018, the prior year amounts were retrospectively adjusted to include restricted cash and cash equivalents. See Note A.