Net Income Per Share - Schedule of Computation of Net Income Per Share Amounts (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended				6 Months Ended
	Jul. 31, 2024	Apr. 30, 2024	Jul. 31, 2023	Apr. 30, 2023	Jul. 31, 2024	Jul. 31, 2023
Numerator:
Net income	$ 282	$ 252	$ 222	$ 161	$ 534	$ 383
Denominator:
Denominator for basic net income per share—weighted average shares (in shares)	216		214		215	214
Effect of dilutive securities (in shares)	1		1		2	2
Denominator for dilutive net income per share (in shares)	217		215		217	216
Basic net income per share (in usd per share)	$ 1.31		$ 1.04		$ 2.48	$ 1.79
Diluted net income per share (in usd per share)	$ 1.30		$ 1.03		$ 2.46	$ 1.77