Income Taxes	6 Months Ended
Income Taxes	Jun. 30, 2021
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES For interim periods, we recognize income tax expense by applying the estimated annual effective income tax rate to year-to-date results unless this method does not result in a reliable estimate of year-to-date income tax expense. Each period, the income tax accrual is adjusted to the latest estimate, and the difference from the previously accrued year-to-date balance is adjusted in the current quarter. Changes in profitability estimates in various jurisdictions will impact our quarterly effective income tax rates. The tax provision for income taxes for the six months ended June 30, 2021 and 2020, reflected an estimated annual tax rate of 24% and 26%, respectively, excluding discrete items discussed below. The total effective tax rate for the three and six months ended June 30, 2021, was 23%, compared to 37% and 30% for the comparable periods in 2020, respectively. We recognized a net discrete tax benefit of $9 million during the six months ended June 30, 2021, primarily related to stock-based compensation and adjustments to prior year, including an adjustment to the deferred tax rate. We recognized a net discrete tax expense of $4 million during the six months ended June 30, 2020, primarily related to the surrender of a corporate-owned life insurance contract and a sales of ARS, offset by a benefit related to stock-based compensation.

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.