CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 31, 2024	Oct. 31, 2023	Oct. 31, 2024	Oct. 31, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 275	$ 241	$ 809	$ 624
Other comprehensive income (loss), net of reclassifications:
Net (loss) gain on derivative instruments (net of tax effect of $2, zero, $3, and $3, respectively)	(12)	4	(15)	(22)
Change in net unrealized loss on available-for-sale debt securities (net of tax effect of zero for all periods presented)	(2)	(1)	(1)	(2)
Net change in cumulative foreign currency translation gain (loss) (net of tax effect of $(1), zero, $(1), and $5, respectively)	3	(62)	(10)	(48)
Total other comprehensive loss	(11)	(59)	(26)	(72)
Total comprehensive income	$ 264	$ 182	$ 783	$ 552