Revenue Recognition - Contract Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 31, 2023	Jul. 31, 2022	Jul. 31, 2023	Jul. 31, 2022
Disaggregation of Revenue [Line Items]
Total net revenue	$ 1,345	$ 1,237	$ 2,614	$ 2,407
Design
Disaggregation of Revenue [Line Items]
Total net revenue	1,154	1,064	2,240	2,068
Make
Disaggregation of Revenue [Line Items]
Total net revenue	130	113	251	216
Other
Disaggregation of Revenue [Line Items]
Total net revenue	61	60	123	123
Indirect
Disaggregation of Revenue [Line Items]
Total net revenue	850	816	1,670	1,585
Direct
Disaggregation of Revenue [Line Items]
Total net revenue	495	421	944	822
Total Americas
Disaggregation of Revenue [Line Items]
Total net revenue	589	515	1,142	999
U.S.
Disaggregation of Revenue [Line Items]
Total net revenue	485	424	941	822
Other Americas
Disaggregation of Revenue [Line Items]
Total net revenue	104	91	201	177
Europe, Middle East and Africa
Disaggregation of Revenue [Line Items]
Total net revenue	506	473	980	922
Asia Pacific
Disaggregation of Revenue [Line Items]
Total net revenue	250	249	492	486
Architecture, Engineering and Construction
Disaggregation of Revenue [Line Items]
Total net revenue	627	564	1,209	1,101
AutoCAD and AutoCAD LT
Disaggregation of Revenue [Line Items]
Total net revenue	364	344	713	671
Manufacturing
Disaggregation of Revenue [Line Items]
Total net revenue	256	242	502	467
Media and Entertainment
Disaggregation of Revenue [Line Items]
Total net revenue	74	71	145	139
Other
Disaggregation of Revenue [Line Items]
Total net revenue	$ 24	$ 16	$ 45	$ 29