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Financial Instruments - Cost and Fair Value of Financial Instruments (Details) (USD $) In Millions, unless otherwise specified | Jan. 31, 2015 | Jan. 31, 2014 | Jan. 31, 2013 | Jan. 31, 2012
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Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Cash equivalents | $ 1,410.6 us-gaap_CashAndCashEquivalentsAtCarryingValue |  | $ 1,853.0 us-gaap_CashAndCashEquivalentsAtCarryingValue |  | $ 1,612.2 us-gaap_CashAndCashEquivalentsAtCarryingValue | $ 1,156.9 us-gaap_CashAndCashEquivalentsAtCarryingValue
Derivative Instruments And Hedges at Amortized Cost | 3.5 adsk_DerivativeInstrumentsAndHedgesNet | [1] | 10.8 adsk_DerivativeInstrumentsAndHedgesNet | [1] |  |
Unrealized Gain on Foreign Currency Derivatives | 19.5 adsk_DerivativeAssetsAccumulatedGrossUnrealizedGainbeforeTax | [1] | 14.8 adsk_DerivativeAssetsAccumulatedGrossUnrealizedGainbeforeTax | [1] |  |
Unrealized Loss on Foreign Currency Derivatives | (7.0)adsk_DerivativeAssetsAccumulatedGrossUnrealizedLossbeforeTax | [1] | (6.0)adsk_DerivativeAssetsAccumulatedGrossUnrealizedLossbeforeTax | [1] |  |
Derivative Contracts, Fair Value | 16.0 adsk_DerivativeContractsFairValueDisclosure | [1] | 19.6 adsk_DerivativeContractsFairValueDisclosure | [1] |  |
Amortized Cost Securities | 1,592.6 adsk_AmortizedCostSecurities |  | 1,545.3 adsk_AmortizedCostSecurities |  |  |
Unrealized Gain on Securities | 26.6 adsk_SecuritiesAccumulatedGrossUnrealizedGainbeforeTax |  | 22.4 adsk_SecuritiesAccumulatedGrossUnrealizedGainbeforeTax |  |  |
Unrealized Loss on Securities | (9.4)adsk_SecuritiesAccumulatedGrossUnrealizedLossbeforeTax |  | (10.5)adsk_SecuritiesAccumulatedGrossUnrealizedLossbeforeTax |  |  |
Total | 1,609.8 us-gaap_AssetsFairValueDisclosure |  | 1,557.2 us-gaap_AssetsFairValueDisclosure |  |  |
Marketable Securities, Current |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Trading Securities, Cost | 36.9 us-gaap_TradingSecuritiesCost / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember |  | 35.6 us-gaap_TradingSecuritiesCost / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember |  |  |
Trading Securities, Unrealized Holding Gain | 3.4 adsk_TradingSecuritiesAccumulatedGrossUnrealizedGainbeforeTax / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember |  | 3.3 adsk_TradingSecuritiesAccumulatedGrossUnrealizedGainbeforeTax / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember |  |  |
Trading Securities, Unrealized Holding Loss | 0 adsk_TradingSecuritiesAccumulatedGrossUnrealizedLossbeforeTax / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember |  | 0 adsk_TradingSecuritiesAccumulatedGrossUnrealizedLossbeforeTax / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember |  |  |
Trading Securities | 40.3 us-gaap_TradingSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember |  | 38.9 us-gaap_TradingSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember |  |  |
Other Assets |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Amortized Cost |  |  | 21.4 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherAssetsMember | [2] |  |
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain |  |  | 3.2 us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherAssetsMember | [2] |  |
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss |  |  | (4.4)us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherAssetsMember | [2] |  |
Available-for-sale Securities, Fair Value |  |  | 20.2 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherAssetsMember | [2] |  |
Convertible Debt Securities, Amortized Cost | 4.7 adsk_ConvertibleDebtSecuritiesAmortizedCost / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherAssetsMember | [3] |  |  |  |
Convertible Debt Securities, Unrealized Gains | 2.5 adsk_ConvertibleDebtSecuritiesUnrealizedGains / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherAssetsMember | [3] |  |  |  |
Convertible Debt Securities, Unrealized Losses | (2.1)adsk_ConvertibleDebtSecuritiesUnrealizedLosses / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherAssetsMember | [3] |  |  |  |
Convertible Debt Securities, Fair Value | 5.1 adsk_ConvertibleDebtSecuritiesFairValueDisclosure / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherAssetsMember | [3] |  |  |  |
Level 1 |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Derivative Contracts, Fair Value | 0 adsk_DerivativeContractsFairValueDisclosure / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member | [1] | 0 adsk_DerivativeContractsFairValueDisclosure / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member | [1] |  |
Total | 1,042.0 us-gaap_AssetsFairValueDisclosure / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member |  | 521.1 us-gaap_AssetsFairValueDisclosure / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member |  |  |
Level 1 | Marketable Securities, Current |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Trading Securities | 40.3 us-gaap_TradingSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member |  | 38.9 us-gaap_TradingSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member |  |  |
Level 1 | Other Assets |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Fair Value |  |  | 0 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherAssetsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member | [2] |  |
Convertible Debt Securities, Fair Value | 0 adsk_ConvertibleDebtSecuritiesFairValueDisclosure / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherAssetsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member | [3] |  |  |  |
Level 2 |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Derivative Contracts, Fair Value | 15.1 adsk_DerivativeContractsFairValueDisclosure / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member | [1] | 10.5 adsk_DerivativeContractsFairValueDisclosure / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member | [1] |  |
Total | 561.8 us-gaap_AssetsFairValueDisclosure / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member |  | 1,006.8 us-gaap_AssetsFairValueDisclosure / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member |  |  |
Level 2 | Marketable Securities, Current |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Trading Securities | 0 us-gaap_TradingSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member |  | 0 us-gaap_TradingSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member |  |  |
Level 2 | Other Assets |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Fair Value |  |  | 0 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherAssetsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member | [2] |  |
Convertible Debt Securities, Fair Value | 0 adsk_ConvertibleDebtSecuritiesFairValueDisclosure / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherAssetsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member | [3] |  |  |  |
Level 3 |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Derivative Contracts, Fair Value | 0.9 adsk_DerivativeContractsFairValueDisclosure / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member | [1] | 9.1 adsk_DerivativeContractsFairValueDisclosure / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member | [1] |  |
Total | 6.0 us-gaap_AssetsFairValueDisclosure / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member |  | 29.3 us-gaap_AssetsFairValueDisclosure / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member |  |  |
Level 3 | Marketable Securities, Current |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Trading Securities | 0 us-gaap_TradingSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member |  | 0 us-gaap_TradingSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member |  |  |
Level 3 | Other Assets |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Fair Value |  |  | 20.2 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherAssetsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member | [2] |  |
Convertible Debt Securities, Fair Value | 5.1 adsk_ConvertibleDebtSecuritiesFairValueDisclosure / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherAssetsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member | [3] |  |  |  |
Agency bond | Marketable Securities, Current |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Amortized Cost | 37.9 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = adsk_AgencyBondsMember |  | 42.7 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = adsk_AgencyBondsMember |  |  |
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain | 0 us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = adsk_AgencyBondsMember |  | 0 us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = adsk_AgencyBondsMember |  |  |
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss | 0 us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = adsk_AgencyBondsMember |  | 0 us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = adsk_AgencyBondsMember |  |  |
Available-for-sale Securities, Fair Value | 37.9 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = adsk_AgencyBondsMember |  | 42.7 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = adsk_AgencyBondsMember |  |  |
Agency bond | Marketable Securities, Noncurrent |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Amortized Cost | 50.6 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = adsk_AgencyBondsMember |  | 43.3 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = adsk_AgencyBondsMember |  |  |
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain | 0.2 us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = adsk_AgencyBondsMember |  | 0.1 us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = adsk_AgencyBondsMember |  |  |
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss | 0 us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = adsk_AgencyBondsMember |  | 0 us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = adsk_AgencyBondsMember |  |  |
Available-for-sale Securities, Fair Value | 50.8 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = adsk_AgencyBondsMember |  | 43.4 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = adsk_AgencyBondsMember |  |  |
Agency bond | Level 1 | Marketable Securities, Current |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Fair Value | 37.9 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = adsk_AgencyBondsMember |  | 42.7 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = adsk_AgencyBondsMember |  |  |
Agency bond | Level 1 | Marketable Securities, Noncurrent |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Fair Value | 50.8 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = adsk_AgencyBondsMember |  | 43.4 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = adsk_AgencyBondsMember |  |  |
Agency bond | Level 2 | Marketable Securities, Current |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Fair Value | 0 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = adsk_AgencyBondsMember |  | 0 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = adsk_AgencyBondsMember |  |  |
Agency bond | Level 2 | Marketable Securities, Noncurrent |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Fair Value | 0 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = adsk_AgencyBondsMember |  | 0 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = adsk_AgencyBondsMember |  |  |
Agency bond | Level 3 | Marketable Securities, Current |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Fair Value | 0 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = adsk_AgencyBondsMember |  | 0 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = adsk_AgencyBondsMember |  |  |
Agency bond | Level 3 | Marketable Securities, Noncurrent |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Fair Value | 0 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = adsk_AgencyBondsMember |  | 0 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = adsk_AgencyBondsMember |  |  |
Corporate debt securities | Marketable Securities, Current |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Amortized Cost | 148.0 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember |  |  |  |  |
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain | 0.1 us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember |  |  |  |  |
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss | (0.1)us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember |  |  |  |  |
Available-for-sale Securities, Fair Value | 148.0 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember |  |  |  |  |
Corporate debt securities | Marketable Securities, Noncurrent |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Amortized Cost | 199.4 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember |  | 179.7 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember |  |  |
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain | 0.6 us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember |  | 0.7 us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember |  |  |
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss | (0.2)us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember |  | (0.1)us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember |  |  |
Available-for-sale Securities, Fair Value | 199.8 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember |  | 180.3 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember |  |  |
Corporate debt securities | Level 1 | Marketable Securities, Current |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Fair Value | 148.0 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember |  |  |  |  |
Corporate debt securities | Level 1 | Marketable Securities, Noncurrent |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Fair Value | 199.8 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember |  | 180.3 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember |  |  |
Corporate debt securities | Level 2 | Marketable Securities, Current |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Fair Value | 0 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember |  |  |  |  |
Corporate debt securities | Level 2 | Marketable Securities, Noncurrent |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Fair Value | 0 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember |  | 0 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember |  |  |
Corporate debt securities | Level 3 | Marketable Securities, Current |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Fair Value | 0 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember |  |  |  |  |
Corporate debt securities | Level 3 | Marketable Securities, Noncurrent |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Fair Value | 0 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember |  | 0 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember |  |  |
Municipal bond | Marketable Securities, Current |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Amortized Cost | 29.2 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember |  | 11.7 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember |  |  |
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain | 0.1 us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember |  | 0 us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember |  |  |
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss | 0 us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember |  | 0 us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember |  |  |
Available-for-sale Securities, Fair Value | 29.3 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember |  | 11.7 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember |  |  |
Municipal bond | Marketable Securities, Noncurrent |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Amortized Cost | 13.3 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember |  | 43.5 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember |  |  |
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain | 0.1 us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember |  | 0.3 us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember |  |  |
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss | 0 us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember |  | 0 us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember |  |  |
Available-for-sale Securities, Fair Value | 13.4 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember |  | 43.8 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember |  |  |
Municipal bond | Level 1 | Marketable Securities, Current |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Fair Value | 29.3 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember |  | 11.7 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember |  |  |
Municipal bond | Level 1 | Marketable Securities, Noncurrent |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Fair Value | 13.4 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember |  | 43.8 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember |  |  |
Municipal bond | Level 2 | Marketable Securities, Current |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Fair Value | 0 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember |  | 0 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember |  |  |
Municipal bond | Level 2 | Marketable Securities, Noncurrent |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Fair Value | 0 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember |  | 0 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember |  |  |
Municipal bond | Level 3 | Marketable Securities, Current |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Fair Value | 0 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember |  | 0 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember |  |  |
Municipal bond | Level 3 | Marketable Securities, Noncurrent |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Fair Value | 0 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember |  | 0 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember |  |  |
Certificate of deposit | Marketable Securities, Current |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Amortized Cost | 101.9 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CertificatesOfDepositMember |  |  |  |  |
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain | 0 us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CertificatesOfDepositMember |  |  |  |  |
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss | 0 us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CertificatesOfDepositMember |  |  |  |  |
Available-for-sale Securities, Fair Value | 101.9 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CertificatesOfDepositMember |  |  |  |  |
Certificate of deposit | Level 1 | Marketable Securities, Current |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Fair Value | 101.9 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CertificatesOfDepositMember |  |  |  |  |
Commercial paper | Marketable Securities, Current |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Amortized Cost | 258.4 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CommercialPaperMember |  |  |  |  |
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain | 0 us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CommercialPaperMember |  |  |  |  |
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss | 0 us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CommercialPaperMember |  |  |  |  |
Available-for-sale Securities, Fair Value | 258.4 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CommercialPaperMember |  |  |  |  |
Commercial paper | Level 1 | Marketable Securities, Current |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Fair Value | 0 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CommercialPaperMember |  |  |  |  |
Commercial paper | Level 2 | Marketable Securities, Current |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Fair Value | 258.4 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CommercialPaperMember |  |  |  |  |
Commercial paper | Level 3 | Marketable Securities, Current |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Fair Value | 0 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CommercialPaperMember |  |  |  |  |
U.S. government agency securities | Marketable Securities, Current |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Amortized Cost |  |  | 11.3 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USGovernmentAgenciesDebtSecuritiesMember |  |  |
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain |  |  | 0 us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USGovernmentAgenciesDebtSecuritiesMember |  |  |
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss |  |  | 0 us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USGovernmentAgenciesDebtSecuritiesMember |  |  |
Available-for-sale Securities, Fair Value |  |  | 11.3 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USGovernmentAgenciesDebtSecuritiesMember |  |  |
U.S. government agency securities | Marketable Securities, Noncurrent |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Amortized Cost | 8.9 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USGovernmentAgenciesDebtSecuritiesMember |  | 9.8 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USGovernmentAgenciesDebtSecuritiesMember |  |  |
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain | 0.1 us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USGovernmentAgenciesDebtSecuritiesMember |  | 0 us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USGovernmentAgenciesDebtSecuritiesMember |  |  |
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss | 0 us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USGovernmentAgenciesDebtSecuritiesMember |  | 0 us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USGovernmentAgenciesDebtSecuritiesMember |  |  |
Available-for-sale Securities, Fair Value | 9.0 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USGovernmentAgenciesDebtSecuritiesMember |  | 9.8 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USGovernmentAgenciesDebtSecuritiesMember |  |  |
U.S. government agency securities | Level 1 | Marketable Securities, Current |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Fair Value |  |  | 11.3 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USGovernmentAgenciesDebtSecuritiesMember |  |  |
U.S. government agency securities | Level 1 | Marketable Securities, Noncurrent |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Fair Value | 9.0 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USGovernmentAgenciesDebtSecuritiesMember |  | 9.8 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USGovernmentAgenciesDebtSecuritiesMember |  |  |
U.S. government agency securities | Level 2 | Marketable Securities, Current |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Fair Value |  |  | 0 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USGovernmentAgenciesDebtSecuritiesMember |  |  |
U.S. government agency securities | Level 2 | Marketable Securities, Noncurrent |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Fair Value | 0 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USGovernmentAgenciesDebtSecuritiesMember |  | 0 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USGovernmentAgenciesDebtSecuritiesMember |  |  |
U.S. government agency securities | Level 3 | Marketable Securities, Current |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Fair Value |  |  | 0 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USGovernmentAgenciesDebtSecuritiesMember |  |  |
U.S. government agency securities | Level 3 | Marketable Securities, Noncurrent |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Fair Value | 0 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USGovernmentAgenciesDebtSecuritiesMember |  | 0 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesNoncurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USGovernmentAgenciesDebtSecuritiesMember |  |  |
Commercial paper and corporate debt securities | Marketable Securities, Current |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Amortized Cost |  |  | 261.0 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = adsk_CommercialPaperAndCorporateSecuritiesMember |  |  |
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain |  |  | 0 us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = adsk_CommercialPaperAndCorporateSecuritiesMember |  |  |
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss |  |  | 0 us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = adsk_CommercialPaperAndCorporateSecuritiesMember |  |  |
Available-for-sale Securities, Fair Value |  |  | 261.0 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = adsk_CommercialPaperAndCorporateSecuritiesMember |  |  |
Commercial paper and corporate debt securities | Level 1 | Marketable Securities, Current |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Fair Value |  |  | 95.4 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = adsk_CommercialPaperAndCorporateSecuritiesMember |  |  |
Commercial paper and corporate debt securities | Level 2 | Marketable Securities, Current |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Fair Value |  |  | 165.6 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = adsk_CommercialPaperAndCorporateSecuritiesMember |  |  |
Commercial paper and corporate debt securities | Level 3 | Marketable Securities, Current |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Fair Value |  |  | 0 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = adsk_CommercialPaperAndCorporateSecuritiesMember |  |  |
Time deposits | Marketable Securities, Current |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Amortized Cost |  |  | 37.1 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_BankTimeDepositsMember |  |  |
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain |  |  | 0 us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_BankTimeDepositsMember |  |  |
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss |  |  | 0 us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_BankTimeDepositsMember |  |  |
Available-for-sale Securities, Fair Value |  |  | 37.1 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_BankTimeDepositsMember |  |  |
Time deposits | Level 1 | Marketable Securities, Current |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Fair Value |  |  | 0 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_BankTimeDepositsMember |  |  |
Time deposits | Level 2 | Marketable Securities, Current |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Fair Value |  |  | 37.1 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_BankTimeDepositsMember |  |  |
Time deposits | Level 3 | Marketable Securities, Current |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Fair Value |  |  | 0 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_BankTimeDepositsMember |  |  |
Other securities | Marketable Securities, Current |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Amortized Cost |  |  | 11.4 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = adsk_OtherSecuritiesMember |  |  |
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain |  |  | 0 us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = adsk_OtherSecuritiesMember |  |  |
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss |  |  | 0 us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = adsk_OtherSecuritiesMember |  |  |
Available-for-sale Securities, Fair Value |  |  | 11.4 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = adsk_OtherSecuritiesMember |  |  |
Other securities | Level 1 | Marketable Securities, Current |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Fair Value |  |  | 11.4 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = adsk_OtherSecuritiesMember |  |  |
Other securities | Level 2 | Marketable Securities, Current |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Fair Value |  |  | 0 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = adsk_OtherSecuritiesMember |  |  |
Other securities | Level 3 | Marketable Securities, Current |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Fair Value |  |  | 0 us-gaap_AvailableForSaleSecurities / us-gaap_BalanceSheetLocationAxis = adsk_MarketableSecuritiesCurrentMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = adsk_OtherSecuritiesMember |  |  |
Corporate debt securities |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Cash equivalents | 258.6 us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_CashAndCashEquivalentsAxis = us-gaap_CorporateDebtSecuritiesMember | [4] |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure | 258.6 us-gaap_CashAndCashEquivalentsFairValueDisclosure / us-gaap_CashAndCashEquivalentsAxis = us-gaap_CorporateDebtSecuritiesMember | [4] |  |  |  |
Corporate debt securities | Level 1 |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure | 258.6 us-gaap_CashAndCashEquivalentsFairValueDisclosure / us-gaap_CashAndCashEquivalentsAxis = us-gaap_CorporateDebtSecuritiesMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member | [4] |  |  |  |
Corporate debt securities | Level 2 |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure | 0 us-gaap_CashAndCashEquivalentsFairValueDisclosure / us-gaap_CashAndCashEquivalentsAxis = us-gaap_CorporateDebtSecuritiesMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member | [4] |  |  |  |
Corporate debt securities | Level 3 |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure | 0 us-gaap_CashAndCashEquivalentsFairValueDisclosure / us-gaap_CashAndCashEquivalentsAxis = us-gaap_CorporateDebtSecuritiesMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member | [4] |  |  |  |
Certificates of deposit and time deposits |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Cash equivalents |  |  | 280.7 us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_CashAndCashEquivalentsAxis = adsk_CertificatesOfDepositAndTimeDepositsMember | [4] |  |
Cash and Cash Equivalents, Fair Value Disclosure |  |  | 280.7 us-gaap_CashAndCashEquivalentsFairValueDisclosure / us-gaap_CashAndCashEquivalentsAxis = adsk_CertificatesOfDepositAndTimeDepositsMember | [4] |  |
Certificates of deposit and time deposits | Level 1 |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure |  |  | 30.4 us-gaap_CashAndCashEquivalentsFairValueDisclosure / us-gaap_CashAndCashEquivalentsAxis = adsk_CertificatesOfDepositAndTimeDepositsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member | [4] |  |
Certificates of deposit and time deposits | Level 2 |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure |  |  | 250.3 us-gaap_CashAndCashEquivalentsFairValueDisclosure / us-gaap_CashAndCashEquivalentsAxis = adsk_CertificatesOfDepositAndTimeDepositsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member | [4] |  |
Certificates of deposit and time deposits | Level 3 |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure |  |  | 0 us-gaap_CashAndCashEquivalentsFairValueDisclosure / us-gaap_CashAndCashEquivalentsAxis = adsk_CertificatesOfDepositAndTimeDepositsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member | [4] |  |
Custody cash deposit |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Cash equivalents | 141.5 us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_CashAndCashEquivalentsAxis = us-gaap_DepositsMember | [4] |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure | 141.5 us-gaap_CashAndCashEquivalentsFairValueDisclosure / us-gaap_CashAndCashEquivalentsAxis = us-gaap_DepositsMember | [4] |  |  |  |
Custody cash deposit | Level 1 |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure | 141.5 us-gaap_CashAndCashEquivalentsFairValueDisclosure / us-gaap_CashAndCashEquivalentsAxis = us-gaap_DepositsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member | [4] |  |  |  |
Custody cash deposit | Level 2 |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure | 0 us-gaap_CashAndCashEquivalentsFairValueDisclosure / us-gaap_CashAndCashEquivalentsAxis = us-gaap_DepositsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member | [4] |  |  |  |
Custody cash deposit | Level 3 |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure | 0 us-gaap_CashAndCashEquivalentsFairValueDisclosure / us-gaap_CashAndCashEquivalentsAxis = us-gaap_DepositsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member | [4] |  |  |  |
Commercial paper |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Cash equivalents | 161.0 us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_CashAndCashEquivalentsAxis = us-gaap_CommercialPaperMember | [4] | 280.5 us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_CashAndCashEquivalentsAxis = us-gaap_CommercialPaperMember | [4] |  |
Cash and Cash Equivalents, Fair Value Disclosure | 161.0 us-gaap_CashAndCashEquivalentsFairValueDisclosure / us-gaap_CashAndCashEquivalentsAxis = us-gaap_CommercialPaperMember | [4] | 280.5 us-gaap_CashAndCashEquivalentsFairValueDisclosure / us-gaap_CashAndCashEquivalentsAxis = us-gaap_CommercialPaperMember | [4] |  |
Commercial paper | Level 1 |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure | 0 us-gaap_CashAndCashEquivalentsFairValueDisclosure / us-gaap_CashAndCashEquivalentsAxis = us-gaap_CommercialPaperMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member | [4] | 0 us-gaap_CashAndCashEquivalentsFairValueDisclosure / us-gaap_CashAndCashEquivalentsAxis = us-gaap_CommercialPaperMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member | [4] |  |
Commercial paper | Level 2 |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure | 161.0 us-gaap_CashAndCashEquivalentsFairValueDisclosure / us-gaap_CashAndCashEquivalentsAxis = us-gaap_CommercialPaperMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member | [4] | 280.5 us-gaap_CashAndCashEquivalentsFairValueDisclosure / us-gaap_CashAndCashEquivalentsAxis = us-gaap_CommercialPaperMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member | [4] |  |
Commercial paper | Level 3 |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure | 0 us-gaap_CashAndCashEquivalentsFairValueDisclosure / us-gaap_CashAndCashEquivalentsAxis = us-gaap_CommercialPaperMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member | [4] | 0 us-gaap_CashAndCashEquivalentsFairValueDisclosure / us-gaap_CashAndCashEquivalentsAxis = us-gaap_CommercialPaperMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member | [4] |  |
Municipal securities |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Cash equivalents | 11.5 us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_CashAndCashEquivalentsAxis = us-gaap_CorporateBondSecuritiesMember | [4] | 2.0 us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_CashAndCashEquivalentsAxis = us-gaap_CorporateBondSecuritiesMember | [4] |  |
Cash and Cash Equivalents, Fair Value Disclosure | 11.5 us-gaap_CashAndCashEquivalentsFairValueDisclosure / us-gaap_CashAndCashEquivalentsAxis = us-gaap_CorporateBondSecuritiesMember | [4] | 2.0 us-gaap_CashAndCashEquivalentsFairValueDisclosure / us-gaap_CashAndCashEquivalentsAxis = us-gaap_CorporateBondSecuritiesMember | [4] |  |
Municipal securities | Level 1 |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure | 11.5 us-gaap_CashAndCashEquivalentsFairValueDisclosure / us-gaap_CashAndCashEquivalentsAxis = us-gaap_CorporateBondSecuritiesMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member | [4] | 2.0 us-gaap_CashAndCashEquivalentsFairValueDisclosure / us-gaap_CashAndCashEquivalentsAxis = us-gaap_CorporateBondSecuritiesMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member | [4] |  |
Municipal securities | Level 2 |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure | 0 us-gaap_CashAndCashEquivalentsFairValueDisclosure / us-gaap_CashAndCashEquivalentsAxis = us-gaap_CorporateBondSecuritiesMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member | [4] | 0 us-gaap_CashAndCashEquivalentsFairValueDisclosure / us-gaap_CashAndCashEquivalentsAxis = us-gaap_CorporateBondSecuritiesMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member | [4] |  |
Municipal securities | Level 3 |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure | 0 us-gaap_CashAndCashEquivalentsFairValueDisclosure / us-gaap_CashAndCashEquivalentsAxis = us-gaap_CorporateBondSecuritiesMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member | [4] | 0 us-gaap_CashAndCashEquivalentsFairValueDisclosure / us-gaap_CashAndCashEquivalentsAxis = us-gaap_CorporateBondSecuritiesMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member | [4] |  |
Money market funds |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Cash equivalents | 127.3 us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_CashAndCashEquivalentsAxis = us-gaap_MoneyMarketFundsMember | [4] | 262.8 us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_CashAndCashEquivalentsAxis = us-gaap_MoneyMarketFundsMember | [4] |  |
Cash and Cash Equivalents, Fair Value Disclosure | 127.3 us-gaap_CashAndCashEquivalentsFairValueDisclosure / us-gaap_CashAndCashEquivalentsAxis = us-gaap_MoneyMarketFundsMember | [4] | 262.8 us-gaap_CashAndCashEquivalentsFairValueDisclosure / us-gaap_CashAndCashEquivalentsAxis = us-gaap_MoneyMarketFundsMember | [4] |  |
Money market funds | Level 1 |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure | 0 us-gaap_CashAndCashEquivalentsFairValueDisclosure / us-gaap_CashAndCashEquivalentsAxis = us-gaap_MoneyMarketFundsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member | [4] | 0 us-gaap_CashAndCashEquivalentsFairValueDisclosure / us-gaap_CashAndCashEquivalentsAxis = us-gaap_MoneyMarketFundsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member | [4] |  |
Money market funds | Level 2 |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure | 127.3 us-gaap_CashAndCashEquivalentsFairValueDisclosure / us-gaap_CashAndCashEquivalentsAxis = us-gaap_MoneyMarketFundsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member | [4] | 262.8 us-gaap_CashAndCashEquivalentsFairValueDisclosure / us-gaap_CashAndCashEquivalentsAxis = us-gaap_MoneyMarketFundsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member | [4] |  |
Money market funds | Level 3 |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |
Cash and Cash Equivalents, Fair Value Disclosure | $ 0 us-gaap_CashAndCashEquivalentsFairValueDisclosure / us-gaap_CashAndCashEquivalentsAxis = us-gaap_MoneyMarketFundsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member | [4] | $ 0 us-gaap_CashAndCashEquivalentsFairValueDisclosure / us-gaap_CashAndCashEquivalentsAxis = us-gaap_MoneyMarketFundsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member | [4] |  |
[1] | Included in “Prepaid expenses and other current assets,” "Other assets," or “Other accrued liabilities” in the accompanying Consolidated Balance Sheets.
[2] | Considered "available for sale" securities and included in "Other assets" in the accompanying Consolidated Balance Sheets.
[3] | Considered "available for sale" and included in "Other assets" in the accompanying Consolidated Balance Sheets.
[4] | Included in “Cash and cash equivalents” in the accompanying Consolidated Balance Sheets.

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