CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 31, 2024	Jul. 31, 2023	Jul. 31, 2024	Jul. 31, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 282	$ 222	$ 534	$ 383
Other comprehensive income (loss), net of reclassifications:
Net loss on derivative instruments (net of tax effect of $1,$1, $1, and $3, respectively)	(5)	(13)	(3)	(26)
Change in net unrealized gain (loss) on available-for-sale debt securities (net of tax effect of zero for all periods presented)	3	(3)	1	(1)
Net change in cumulative foreign currency translation gain (loss) (net of tax effect of zero, zero, zero, and $5, respectively)	16	18	(13)	14
Total other comprehensive income (loss)	14	2	(15)	(13)
Total comprehensive income	$ 296	$ 224	$ 519	$ 370