Revenue Recognition - Schedule of Contract Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 31, 2024	Jul. 31, 2023	Jul. 31, 2024	Jul. 31, 2023
Disaggregation of Revenue [Line Items]
Total net revenue	$ 1,505	$ 1,345	$ 2,922	$ 2,614
Design
Disaggregation of Revenue [Line Items]
Total net revenue	1,257	1,154	2,453	2,240
Make
Disaggregation of Revenue [Line Items]
Total net revenue	162	130	307	251
Other
Disaggregation of Revenue [Line Items]
Total net revenue	86	61	162	123
Indirect
Disaggregation of Revenue [Line Items]
Total net revenue	908	850	1,788	1,670
Direct
Disaggregation of Revenue [Line Items]
Total net revenue	597	495	1,134	944
Total Americas
Disaggregation of Revenue [Line Items]
Total net revenue	662	589	1,281	1,142
U.S.
Disaggregation of Revenue [Line Items]
Total net revenue	543	485	1,052	941
Other Americas
Disaggregation of Revenue [Line Items]
Total net revenue	119	104	229	201
Europe, Middle East, and Africa
Disaggregation of Revenue [Line Items]
Total net revenue	570	506	1,104	980
Asia Pacific
Disaggregation of Revenue [Line Items]
Total net revenue	273	250	537	492
Architecture, Engineering and Construction
Disaggregation of Revenue [Line Items]
Total net revenue	713	627	1,387	1,209
AutoCAD and AutoCAD LT
Disaggregation of Revenue [Line Items]
Total net revenue	389	364	765	713
Manufacturing
Disaggregation of Revenue [Line Items]
Total net revenue	296	256	564	502
Media and Entertainment
Disaggregation of Revenue [Line Items]
Total net revenue	77	74	148	145
Other
Disaggregation of Revenue [Line Items]
Total net revenue	$ 30	$ 24	$ 58	$ 45