Revenues - Summary of Subscription and Support and Geographic Location Revenue (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 31, 2024	Oct. 31, 2023	Oct. 31, 2024	Oct. 31, 2023
Disaggregation of Revenue [Line Items]
Total revenues	$ 9,444	$ 8,720	$ 27,902	$ 25,570
Americas
Disaggregation of Revenue [Line Items]
Total revenues	$ 6,220	$ 5,862	$ 18,483	$ 17,113
Untied States \| Geographic concentration risk \| Revenue
Disaggregation of Revenue [Line Items]
Concentration risk percentage	93.00%	93.00%	93.00%	93.00%
Europe
Disaggregation of Revenue [Line Items]
Total revenues	$ 2,228	$ 1,998	$ 6,557	$ 5,923
Asia Pacific
Disaggregation of Revenue [Line Items]
Total revenues	996	860	2,862	2,534
Subscription and support
Disaggregation of Revenue [Line Items]
Total revenues	8,879	8,141	26,228	23,789
Sales
Disaggregation of Revenue [Line Items]
Total revenues	2,119	1,906	6,188	5,611
Service
Disaggregation of Revenue [Line Items]
Total revenues	2,288	2,074	6,727	6,087
Platform and Other
Disaggregation of Revenue [Line Items]
Total revenues	1,825	1,686	5,329	4,891
Marketing and Commerce
Disaggregation of Revenue [Line Items]
Total revenues	1,334	1,230	3,924	3,638
Integration and Analytics
Disaggregation of Revenue [Line Items]
Total revenues	$ 1,313	$ 1,245	$ 4,060	$ 3,562