Condensed 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
Total common stock, beginning balance (in shares) at Feb. 03, 2018		379,618
Total stockholders’ equity, beginning balance 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	418,252					418,252
Unrealized investment loss, net	(20)				(20)
Common stock issued under stock planes, net of shares used for tax withholding (in shares)		732
Common stock issued under stock planes, net of shares used for tax withholding	(40,116)	$ 8	4,674	(44,798)
Stock-based compensation	23,760		23,760	0
Common stock repurchased (in shares)		(3,271)
Common stock repurchased	(255,370)	$ (33)	(8,093)			(247,244)
Dividends declared	(85,410)					(85,410)
Total common stock, ending balance (in shares) at May. 05, 2018		377,079
Total stockholders’ equity, ending balance at May. 05, 2018	$ 3,130,288	$ 3,771	1,312,705	(363,077)	7	2,176,882
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends declared per share (in dollars per share)	$ 225
Total common stock, beginning balance (in shares) at Feb. 03, 2018		379,618
Total stockholders’ equity, beginning balance 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	1,145,764
Unrealized investment loss, net	(27)
Total common stock, ending balance (in shares) at Nov. 03, 2018		371,058
Total stockholders’ equity, ending balance at Nov. 03, 2018	3,187,163	$ 3,711	1,354,669	(371,959)	0	2,200,742
Total common stock, beginning balance (in shares) at May. 05, 2018		377,079
Total stockholders’ equity, beginning balance at May. 05, 2018	3,130,288	$ 3,771	1,312,705	(363,077)	7	2,176,882
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	389,404					389,404
Unrealized investment loss, net	(3)				(3)
Common stock issued under stock planes, net of shares used for tax withholding (in shares)		20
Common stock issued under stock planes, net of shares used for tax withholding	(1,128)		5,135	(6,263)
Stock-based compensation	23,820		23,820	0
Common stock repurchased (in shares)		(3,231)
Common stock repurchased	(273,210)	$ (32)	(8,331)			(264,847)
Dividends declared	(84,561)					(84,561)
Total common stock, ending balance (in shares) at Aug. 04, 2018		373,868
Total stockholders’ equity, ending balance at Aug. 04, 2018	$ 3,184,610	$ 3,739	1,333,329	(369,340)	4	2,216,878
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends declared per share (in dollars per share)	$ 225
Net earnings	$ 338,108					338,108
Unrealized investment loss, net	(4)				(4)
Common stock issued under stock planes, net of shares used for tax withholding (in shares)		85
Common stock issued under stock planes, net of shares used for tax withholding	2,479	$ 1	5,097	(2,619)
Stock-based compensation	23,782		23,782	0
Common stock repurchased (in shares)		(2,895)
Common stock repurchased	(277,920)	$ (29)	(7,539)			(270,352)
Dividends declared	(83,892)					(83,892)
Total common stock, ending balance (in shares) at Nov. 03, 2018		371,058
Total stockholders’ equity, ending balance at Nov. 03, 2018	$ 3,187,163	$ 3,711	1,354,669	(371,959)	0	2,200,742
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends declared per share (in dollars per share)	$ 225
Total common stock, beginning balance (in shares) at Feb. 02, 2019		368,242
Total stockholders’ equity, beginning balance 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]
Net earnings	421,142					421,142
Common stock issued under stock planes, net of shares used for tax withholding (in shares)		390
Common stock issued under stock planes, net of shares used for tax withholding	(45,585)	$ 4	5,291	(50,880)
Stock-based compensation	19,689		19,689
Common stock repurchased (in shares)		(3,372)
Common stock repurchased	(320,130)	$ (33)	(9,387)			(310,710)
Dividends declared	(93,722)					(93,722)
Total common stock, ending balance (in shares) at May. 04, 2019		365,260
Total stockholders’ equity, ending balance at May. 04, 2019	$ 3,267,526	$ 3,653	1,391,558	(423,543)	0	2,295,858
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends declared per share (in dollars per share)	$ 255
Total common stock, beginning balance (in shares) at Feb. 02, 2019		368,242
Total stockholders’ equity, beginning balance 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]
Net earnings	1,204,795
Unrealized investment loss, net	0
Total common stock, ending balance (in shares) at Nov. 02, 2019		359,378
Total stockholders’ equity, ending balance at Nov. 02, 2019	$ 3,276,779	$ 3,594	1,435,713	(429,583)	0	2,267,055
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends declared per share (in dollars per share)	$ 255
Total common stock, beginning balance (in shares) at May. 04, 2019		365,260
Total stockholders’ equity, beginning balance at May. 04, 2019	$ 3,267,526	$ 3,653	1,391,558	(423,543)	0	2,295,858
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	412,721					412,721
Common stock issued under stock planes, net of shares used for tax withholding (in shares)		98
Common stock issued under stock planes, net of shares used for tax withholding	4,142	$ 1	5,610	(1,469)
Stock-based compensation	24,924		24,924
Common stock repurchased (in shares)		(3,192)
Common stock repurchased	(320,129)	$ (32)	(9,116)			(310,981)
Dividends declared	(92,920)					(92,920)
Total common stock, ending balance (in shares) at Aug. 03, 2019		362,166
Total stockholders’ equity, ending balance at Aug. 03, 2019	$ 3,296,264	$ 3,622	1,412,976	(425,012)	0	2,304,678
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends declared per share (in dollars per share)	$ 255
Net earnings	$ 370,932					370,932
Unrealized investment loss, net	0
Common stock issued under stock planes, net of shares used for tax withholding (in shares)		227
Common stock issued under stock planes, net of shares used for tax withholding	974	$ 2	5,543	(4,571)
Stock-based compensation	25,987		25,987
Common stock repurchased (in shares)		(3,015)
Common stock repurchased	(325,650)	$ (30)	(8,793)			(316,827)
Dividends declared	(91,728)					(91,728)
Total common stock, ending balance (in shares) at Nov. 02, 2019		359,378
Total stockholders’ equity, ending balance at Nov. 02, 2019	$ 3,276,779	$ 3,594	$ 1,435,713	$ (429,583)	$ 0	$ 2,267,055