v3.20.4

INCOME TAXES (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Nov. 30, 2020 | Nov. 30, 2019
Income Tax Disclosure [Abstract] |  |
Effective Income Tax Rate Reconciliation, Percent | 23.40% | 23.60%
Gain on equity method investment | $ 119,700 | $ 60,492
Gain on equity method investment, tax impact | $ 22,906 | $ 10,183
Effective tax rate excluding equity method investment gain | 23.70% | 23.90%

X
- Definition Effective tax rate excluding equity method investment gain + References No definition available. + Details
Name: | acn_EffectiveTaxRateExcludingEquityMethodInvestmentGain
Namespace Prefix: | acn_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Gain on equity method investment + References No definition available. + Details
Name: | acn_GainOnEquityMethodInvestment
Namespace Prefix: | acn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Gain on equity method investment, tax impact + References No definition available. + Details
Name: | acn_GainOnEquityMethodInvestmentTaxImpact
Namespace Prefix: | acn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 + Details
Name: | us-gaap_EffectiveIncomeTaxRateContinuingOperations
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_IncomeTaxDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration