Revenue Recognition - Schedule of Contract Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 30, 2024	Apr. 30, 2023
Disaggregation of Revenue [Line Items]
Total net revenue	$ 1,417	$ 1,269
Design
Disaggregation of Revenue [Line Items]
Total net revenue	1,196	1,086
Make
Disaggregation of Revenue [Line Items]
Total net revenue	145	121
Other
Disaggregation of Revenue [Line Items]
Total net revenue	76	62
Indirect
Disaggregation of Revenue [Line Items]
Total net revenue	880	820
Direct
Disaggregation of Revenue [Line Items]
Total net revenue	537	449
Total Americas
Disaggregation of Revenue [Line Items]
Total net revenue	619	553
U.S.
Disaggregation of Revenue [Line Items]
Total net revenue	509	456
Other Americas
Disaggregation of Revenue [Line Items]
Total net revenue	110	97
Europe, Middle East, and Africa
Disaggregation of Revenue [Line Items]
Total net revenue	534	474
Asia Pacific
Disaggregation of Revenue [Line Items]
Total net revenue	264	242
Architecture, Engineering and Construction
Disaggregation of Revenue [Line Items]
Total net revenue	674	582
AutoCAD and AutoCAD LT
Disaggregation of Revenue [Line Items]
Total net revenue	376	349
Manufacturing
Disaggregation of Revenue [Line Items]
Total net revenue	268	246
Media and Entertainment
Disaggregation of Revenue [Line Items]
Total net revenue	71	71
Other
Disaggregation of Revenue [Line Items]
Total net revenue	$ 28	$ 21