Income Taxes	3 Months Ended
Apr. 30, 2021
Income Tax Disclosure [Abstract]
Income Taxes	Income TaxesFor the three months ended April 30, 2021 and 2020, our effective tax rates were 13.1% and 4.8%, respectively. During the three months ended April 30, 2021 as compared to the prior year period, our effective tax rate increased primarily due to the increase in income before income taxes for the period combined with a decrease in excess tax benefits related to equity compensation. We recognized such excess tax benefits in our provision for income taxes of $17 million and $20 million for the three months ended April 30, 2021 and 2020, respectively.

- Definition

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.

+ References + Details