Subsequent Events	9 Months Ended
Oct. 31, 2020
Subsequent Events [Abstract]
Subsequent Events	Subsequent EventsIn November 2020, Autodesk entered into a share purchase agreement to acquire all of the outstanding equity of Spacemaker AS (“Spacemaker”) in exchange for consideration of approximately $240 million, net of cash acquired. Spacemaker is a privately held company providing cloud-based artificial intelligence technology and generative design enabling architects, urban designers, and real estate developers to optimize and maximize the potential of a building site, especially during early-stage design and is expected to enable Autodesk’s ability to serve early-stage design market and accelerate outcome-based design capabilities. The transaction closed on November 23, 2020.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI http://asc.fasb.org/topic&trid=2122774

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662

Name:	us-gaap_SubsequentEventsTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration