Revenues - Summary of Subscription and Support and Geographic Location Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 31, 2025	Jul. 31, 2024	Jul. 31, 2025	Jul. 31, 2024
Disaggregation of Revenue [Line Items]
Total revenues	$ 10,236	$ 9,325	$ 20,065	$ 18,458
Americas
Disaggregation of Revenue [Line Items]
Total revenues	6,736	6,201	13,205	12,263
Europe
Disaggregation of Revenue [Line Items]
Total revenues	2,429	2,184	4,766	4,329
Asia Pacific
Disaggregation of Revenue [Line Items]
Total revenues	1,071	940	2,094	1,866
Subscription and support
Disaggregation of Revenue [Line Items]
Total revenues	9,690	8,764	18,987	17,349
Sales
Disaggregation of Revenue [Line Items]
Total revenues	2,267	2,071	4,398	4,069
Service
Disaggregation of Revenue [Line Items]
Total revenues	2,458	2,257	4,792	4,439
Platform and Other
Disaggregation of Revenue [Line Items]
Total revenues	2,084	1,786	4,047	3,504
Marketing and Commerce
Disaggregation of Revenue [Line Items]
Total revenues	1,365	1,308	2,690	2,590
Integration and Analytics
Disaggregation of Revenue [Line Items]
Total revenues	$ 1,516	$ 1,342	$ 3,060	$ 2,747