CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2023	Oct. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 241	$ 198	$ 624	$ 530
Other comprehensive income (loss), net of reclassifications:
Net gain (loss) on derivative instruments (net of tax effect of zero, $(5), $3, and $(17), respectively)	4	26	(22)	99
Change in net unrealized (loss) gain on available-for-sale debt securities (net of tax effect of zero for all periods presented)	(1)	0	(2)	3
Net change in cumulative foreign currency translation loss (net of tax effect of zero, zero, $5, and $1, respectively)	(62)	(64)	(48)	(185)
Total other comprehensive loss	(59)	(38)	(72)	(83)
Total comprehensive income	$ 182	$ 160	$ 552	$ 447