Income taxes	9 Months Ended
Income taxes	May 31, 2020
Income Tax Disclosure [Abstract]
Income taxes	Income taxes The effective tax rate for the three and nine months ended May 31, 2020 was 2.3% and 73.8%, respectively, compared to 13.0% and 14.7% for the three and nine months ended May 31, 2019, respectively. The decrease in the effective tax rate for the three months ended May 31, 2020 reflects a tax benefit on a pretax loss and was primarily due to non-deductible goodwill impairment charge. The increase in the effective tax rate for the nine months ended May 31, 2020 reflects a tax expense on pretax income and was primarily due to non-deductible goodwill impairment charge. Income taxes paid for the nine months ended May 31, 2020 were $604 million, compared to $824 million for the nine months ended May 31, 2019. On December 2, 2019, the Internal Revenue Service issued final regulations relating to the base erosion and anti-avoidance tax (“BEAT”) provisions and the foreign tax credit regime under the U.S. tax law changes enacted in December 2017. The Company has evaluated the impact of the regulations and determined that there is no material impact to its financial statements. The Coronavirus Aid, Relief, and Economic Security Act (“CARES Act”) was enacted on March 27, 2020 in the United States, which includes several provisions related to income taxes. The Company has evaluated the impact of the legislation and determined that while there is an impact on the timing of cash flow, there is no material impact to its financial results.

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.