Income Taxes	6 Months Ended
Income Taxes	Jun. 30, 2021
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES We recorded a $12 million income tax expense on a $3 million loss from continuing operations for the three months ended June 30, 2021. The unusual relationship between income tax expense and the loss from continuing operations was due primarily to an $11 million income tax expense from the elimination of a disproportionate tax effect from accumulated other comprehensive income (loss), relating to the termination of our qualified domestic defined-benefit pension plans. Our effective tax rate was 36 percent for the six months ended June 30, 2021. The tax expense for the six months ended June 30, 2021 includes a $5 million and $11 million income tax expense from the elimination of disproportionate tax effects from accumulated other comprehensive income (loss) relating to our interest rate swap following the retirement of the related debt, and the termination of our qualified domestic defined-benefit pension plans, respectively. Our effective tax rate was 27 percent and 24 percent for the three months and six months ended June 30, 2020. The tax expense for the three months ended June 30, 2020 was impacted by the recording of a $2 million valuation allowance against deferred tax assets in certain jurisdictions. The tax expense for the six months ended June 30, 2020 also includes a $7 million income tax benefit on stock-based compensation and a $6 million state income tax benefit from a reduction in the liability for uncertain tax positions resulting from the expiration of statutes of limitation.

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.