Basis of Presentation (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2022	Jul. 31, 2021
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total net revenue	$ 1,237	$ 1,060	$ 2,407	$ 2,049
Subscription
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total net revenue	1,160	997	2,249	1,924
Other
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total net revenue	$ 60	46	$ 123	89
Previously Reported
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total net revenue		1,060		2,049
Previously Reported | Subscription
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total net revenue		1,017		1,964
Previously Reported | Other
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total net revenue		26		49
Effect of Change in Presentation
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total net revenue		0		0
Effect of Change in Presentation | Subscription
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total net revenue		(20)		(40)
Effect of Change in Presentation | Other
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total net revenue		$ 20		$ 40