Revenue Recognition - Schedule of Contract 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 net revenue	$ 1,570	$ 1,414	$ 4,492	$ 4,028
Design
Disaggregation of Revenue [Line Items]
Total net revenue	1,295	1,192	3,748	3,432
Make
Disaggregation of Revenue [Line Items]
Total net revenue	171	134	478	385
Other
Disaggregation of Revenue [Line Items]
Total net revenue	104	88	266	211
Indirect
Disaggregation of Revenue [Line Items]
Total net revenue	908	876	2,696	2,546
Direct
Disaggregation of Revenue [Line Items]
Total net revenue	662	538	1,796	1,482
Total Americas
Disaggregation of Revenue [Line Items]
Total net revenue	705	640	1,986	1,782
U.S.
Disaggregation of Revenue [Line Items]
Total net revenue	579	520	1,631	1,461
Other Americas
Disaggregation of Revenue [Line Items]
Total net revenue	126	120	355	321
Europe, Middle East, and Africa
Disaggregation of Revenue [Line Items]
Total net revenue	580	516	1,684	1,496
Asia Pacific
Disaggregation of Revenue [Line Items]
Total net revenue	285	258	822	750
Architecture, Engineering and Construction
Disaggregation of Revenue [Line Items]
Total net revenue	751	675	2,138	1,884
AutoCAD and AutoCAD LT
Disaggregation of Revenue [Line Items]
Total net revenue	398	372	1,163	1,085
Manufacturing
Disaggregation of Revenue [Line Items]
Total net revenue	307	269	871	771
Media and Entertainment
Disaggregation of Revenue [Line Items]
Total net revenue	83	73	231	218
Other
Disaggregation of Revenue [Line Items]
Total net revenue	$ 31	$ 25	$ 89	$ 70