Stockholders' Equity (Stock Award Activity) (Details) - Stock Awards shares in Thousands	12 Months Ended
	Jan. 31, 2026 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Unvested at beginning of period (in shares) | shares	4,157,000
Awarded (in shares) | shares	1,222,000
Released (in shares) | shares	(1,406,000)
Forfeited (in shares) | shares	(159,000)
Unvested at end of period (in shares) | shares	3,814,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Unvested at beginning of period (in dollars per share) | $ / shares	$ 117.02
Awarded (in dollars per share) | $ / shares	139.63
Released (in dollars per share) | $ / shares	113.65
Forfeited (in dollars per share) | $ / shares	120.05
Unvested at end of period (in dollars per share) | $ / shares	$ 125.38