Debt Instrument, Covenant, Interest Coverage Ratio, Minimum

No definition available.

Name:	adsk_DebtInstrumentCovenantInterestCoverageRatioMinimum
Namespace Prefix:	adsk_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt Instrument, Covenant, Leverage Ratio, Maximum

+ References

No definition available.

+ Details

Name:	adsk_DebtInstrumentCovenantLeverageRatioMaximum
Namespace Prefix:	adsk_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt Issuance Redemption Discount Premium Percentage Of Principal Amount

+ References

No definition available.

+ Details

Name:	adsk_DebtIssuanceRedemptionDiscountPremiumPercentageOfPrincipalAmount
Namespace Prefix:	adsk_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Line Of Credit Facility, Accordion Feature, Increase Limit

+ References

No definition available.

+ Details

Name:	adsk_LineOfCreditFacilityAccordionFeatureIncreaseLimit
Namespace Prefix:	adsk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28551-108399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

+ Details

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, after accumulated amortization, of debt discount.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28541-108399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

+ Details

Name:	us-gaap_DebtInstrumentUnamortizedDiscount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28555-108399

+ Details

Name:	us-gaap_DeferredFinanceCostsGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

+ Details

Name:	us-gaap_LineOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585

+ Details

Name:	us-gaap_ProceedsFromDebtNetOfIssuanceCosts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3291-108585

+ Details

Name:	us-gaap_RepaymentsOfDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=adsk_A2.85NotesdueJanuary152030Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=adsk_SeniorNotesdue2020Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=adsk_SeniorNotesdue2017Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=adsk_A3.5NotesdueJune152027Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=adsk_SeniorNotesdue2025Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=adsk_A2012SeniorNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=adsk_A2015SeniorNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=adsk_December172018CreditAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	adsk_DebtInstrumentCovenantPeriodAxis=adsk_DebtInstrumentCovenantPeriodFiscalQuarterEndingJanuary312019Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	adsk_DebtInstrumentCovenantPeriodAxis=adsk_DebtInstrumentCovenantPeriodFiscalQuarterEndingApril302019Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	adsk_DebtInstrumentCovenantPeriodAxis=adsk_DebtInstrumentCovenantPeriodFiscalQuarterEndingJuly312019Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	adsk_DebtInstrumentCovenantPeriodAxis=adsk_DebtInstrumentCovenantPeriodFiscalQuarterEndingJanuary312020Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_BaseRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Borrowing Arrangements (Details)		1 Months Ended					9 Months Ended
Borrowing Arrangements (Details)	Mar. 04, 2020 USD ($)	Jan. 31, 2020 USD ($)	Dec. 31, 2018 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2015 USD ($)	Dec. 31, 2012 USD ($)	Oct. 31, 2020 USD ($)	Dec. 15, 2017 USD ($)
Debt Instrument [Line Items]
Maximum borrowing capacity			$ 650,000,000.0
Senior Notes
Debt Instrument [Line Items]
Repayments of debt	$ 452,100,000
Senior Notes \| 2.85 Notes due January 15 2030
Debt Instrument [Line Items]
Aggregate principal amount		$ 500,000,000.0					$ 500,000,000.0
Stated interest rate		2.85%
Unamortized discount		$ 1,100,000
Debt issuance costs		4,800,000
Proceeds from debt, net of issuance costs		$ 494,100,000
Senior Notes \| Senior Notes due 2020
Debt Instrument [Line Items]
Aggregate principal amount					$ 450,000,000.0
Stated interest rate					3.125%
Unamortized discount					$ 600,000
Debt issuance costs					3,800,000
Proceeds from debt, net of issuance costs					445,600,000
Senior Notes \| 2017 Senior Notes
Debt Instrument [Line Items]
Aggregate principal amount				$ 500,000,000.0			500,000,000.0	$ 400,000,000.0
Senior Notes \| 2017 Notes
Debt Instrument [Line Items]
Stated interest rate				3.50%
Unamortized discount				$ 3,100,000
Debt issuance costs				4,900,000
Proceeds from debt, net of issuance costs				$ 492,000,000.0
Senior Notes \| Senior Notes due 2025
Debt Instrument [Line Items]
Aggregate principal amount					$ 300,000,000		300,000,000.0
Stated interest rate					4.375%
Unamortized discount					$ 1,100,000
Debt issuance costs					2,500,000
Proceeds from debt, net of issuance costs					$ 296,400,000
Senior Notes \| 2012 Senior Notes
Debt Instrument [Line Items]
Aggregate principal amount						$ 350,000,000.0	350,000,000.0
Stated interest rate						3.60%
Unamortized discount						$ 500,000
Debt issuance costs						2,800,000
Proceeds from debt, net of issuance costs						$ 346,700,000
Senior Notes \| 2015 Notes
Debt Instrument [Line Items]
Debt redemption percentage of principle amount (as a percent)					101.00%
Revolving Credit Facility \| December 17, 2018 Credit Agreement
Debt Instrument [Line Items]
Line of credit facility, increase limit			$ 350,000,000.0
Line of credit facility, outstanding borrowings							$ 0
Fiscal quarter ending January 31, 2019 \| Revolving Credit Facility \| December 17, 2018 Credit Agreement
Debt Instrument [Line Items]
Debt covenant, interest coverage ratio, minimum			2.50
Fiscal quarter ending April 30, 2019 \| Revolving Credit Facility \| December 17, 2018 Credit Agreement
Debt Instrument [Line Items]
Debt covenant, interest coverage ratio, minimum			3.00
Fiscal quarter ending July 31, 2019 \| Revolving Credit Facility \| December 17, 2018 Credit Agreement
Debt Instrument [Line Items]
Debt covenant, leverage ratio, maximum			3.50
Fiscal quarter ending January 31, 2020 \| Revolving Credit Facility \| December 17, 2018 Credit Agreement
Debt Instrument [Line Items]
Debt covenant, leverage ratio, maximum			3.00
Minimum \| Base Rate \| Revolving Credit Facility \| December 17, 2018 Credit Agreement
Debt Instrument [Line Items]
Basis spread on variable rate							0.00%
Minimum \| London Interbank Offered Rate (LIBOR) \| Revolving Credit Facility \| December 17, 2018 Credit Agreement
Debt Instrument [Line Items]
Basis spread on variable rate							0.90%
Maximum \| Base Rate \| Revolving Credit Facility \| December 17, 2018 Credit Agreement
Debt Instrument [Line Items]
Basis spread on variable rate							0.50%
Maximum \| London Interbank Offered Rate (LIBOR) \| Revolving Credit Facility \| December 17, 2018 Credit Agreement
Debt Instrument [Line Items]
Basis spread on variable rate							1.50%