CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Millions, $ in Millions	Total	Common stock and additional paid-in capital	Accumulated other comprehensive loss	Accumulated deficit
Beginning Balance (in shares) at Jan. 31, 2023		215
Beginning balance at Jan. 31, 2023	$ 1,145	$ 3,325	$ (185)	$ (1,995)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common shares issued under stock plans (in shares)		3
Common shares issued under stock plans	(60)	$ (60)
Stock-based compensation expense	693	693
Settlement of liability-classified restricted common shares	15	$ 15
Net income	906			906
Other comprehensive gain (loss)	$ (49)		(49)
Repurchase and retirement of common shares (in shares)	(4)	(4)
Repurchase and retirement of common shares	$ (795)	$ (171)		(624)
Ending Balance (in shares) at Jan. 31, 2024		214
Ending balance at Jan. 31, 2024	1,855	$ 3,802	(234)	(1,713)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common shares issued under stock plans (in shares)		3
Common shares issued under stock plans	(135)	$ (135)
Stock-based compensation expense	694	694
Settlement of liability-classified restricted common shares	4	$ 4
Net income	1,112			1,112
Other comprehensive gain (loss)	$ (51)		(51)
Repurchase and retirement of common shares (in shares)	(3)	(3)
Repurchase and retirement of common shares	$ (858)	$ (126)		(732)
Ending Balance (in shares) at Jan. 31, 2025	214	214
Ending balance at Jan. 31, 2025	$ 2,621	$ 4,239	(285)	(1,333)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common shares issued under stock plans (in shares)		3
Common shares issued under stock plans	(152)	$ (152)
Stock-based compensation expense	802	$ 802
Settlement of liability-classified restricted common shares	0
Net income	1,124			1,124
Other comprehensive gain (loss)	$ 53		53
Repurchase and retirement of common shares (in shares)	(5)	(5)
Repurchase and retirement of common shares	$ (1,403)	$ (180)		(1,223)
Ending Balance (in shares) at Jan. 31, 2026	212	212
Ending balance at Jan. 31, 2026	$ 3,045	$ 4,709	$ (232)	$ (1,432)