Segments - Schedule of Segments (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 31, 2026	Jan. 31, 2025	Jan. 31, 2024
Revenue from External Customer [Line Items]
Total net revenue	$ 7,206	$ 6,131	$ 5,497
Amortization of developed technologies	97	85	48
Marketing and sales	2,373	2,000	1,823
Research and development	1,643	1,485	1,373
General and administrative	693	650	620
Amortization of purchased intangibles	53	49	42
Restructuring, other exit costs, and facility reductions	216	15	0
Stock-based compensation	788	686	703
Interest and other (income) expense, net	(25)	(30)	(8)
Provision for income taxes	479	272	230
Net income	1,124	1,112	906
Reportable Segment
Revenue from External Customer [Line Items]
Total net revenue	7,206	6,131	5,497
Cost of subscription and maintenance revenue	420	376	344
Cost of other revenue	74	67	68
Amortization of developed technologies	97	85	48
Marketing and sales	1,666	1,670	1,548
Research and development	1,304	1,181	1,065
General and administrative	563	541	524
Amortization of purchased intangibles	53	49	42
Restructuring, other exit costs, and facility reductions	216	15	0
New transaction model	447	107	27
Stock-based compensation	788	686	703
Interest and other (income) expense, net	(25)	(30)	(8)
Provision for income taxes	479	272	230
Net income	$ 1,124	$ 1,112	$ 906