Revenue Recognition - Contract Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 30, 2023	Apr. 30, 2022
Disaggregation of Revenue [Line Items]
Total net revenue	$ 1,269	$ 1,170
Design
Disaggregation of Revenue [Line Items]
Total net revenue	1,086	1,004
Make
Disaggregation of Revenue [Line Items]
Total net revenue	121	103
Other
Disaggregation of Revenue [Line Items]
Total net revenue	62	63
Indirect
Disaggregation of Revenue [Line Items]
Total net revenue	820	769
Direct
Disaggregation of Revenue [Line Items]
Total net revenue	449	401
Americas
Disaggregation of Revenue [Line Items]
Total net revenue	553	484
U.S.
Disaggregation of Revenue [Line Items]
Total net revenue	456	398
Other Americas
Disaggregation of Revenue [Line Items]
Total net revenue	97	86
Europe, Middle East and Africa
Disaggregation of Revenue [Line Items]
Total net revenue	474	449
Asia Pacific
Disaggregation of Revenue [Line Items]
Total net revenue	242	237
Architecture, Engineering and Construction
Disaggregation of Revenue [Line Items]
Total net revenue	582	537
AutoCAD and AutoCAD LT
Disaggregation of Revenue [Line Items]
Total net revenue	349	327
Manufacturing
Disaggregation of Revenue [Line Items]
Total net revenue	246	225
Media and Entertainment
Disaggregation of Revenue [Line Items]
Total net revenue	71	68
Other
Disaggregation of Revenue [Line Items]
Total net revenue	$ 21	$ 13