Income Taxes	6 Months Ended
Income Taxes	Jun. 30, 2021
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes We recognized total income tax expense from continuing operations of $143 million and $354 million for the three months and six months ended June 30, 2021, respectively, compared to income tax expense of $95 million and $3 million for the same periods in 2020. The increases in income tax expense for the three months and six months ended June 30, 2021, compared to the same periods in 2020, were primarily due to the tax effects of an increase in pretax earnings, partially offset by a nonrecurring tax benefit from the release of valuation allowance on foreign tax credit carryforwards during the second quarter of 2021, and a nondeductible goodwill impairment in the second quarter of 2020. The valuation allowance release during the three months ended June 30, 2021, was primarily driven by our current capacity to engage in certain securitization transactions and the market demand from investors related to these transactions, coupled with the anticipated timing of the forecasted expiration of foreign tax credit carryforwards. This release of valuation allowance in continuing operations of approximately $78 million resulted in a significant variation in the customary relationship between pretax income and income tax expense for the six months ended June 30, 2021. The nondeductible goodwill impairment resulted in a significant variation in the customary relationship between pretax income and income tax expense for the six months ended June 30, 2020. Additionally, we recognized total income tax benefit from discontinued operations of $2 million during the second quarter of 2021. This amount includes a $78 million income tax benefit related to our tax election change from deducting foreign taxes paid to claiming the foreign tax credit carryforwards on a prior tax return substantially offset by income tax expense of $76 million related to the establishment of a partial valuation allowance against these tax credit carryforwards. As of each reporting date, we consider existing evidence, both positive and negative, that could impact our view with regard to future realization of deferred tax assets. Following the changes to the aforementioned valuation allowance, we continue to believe it is more likely than not that the benefit for certain foreign tax credit carryforwards and state net operating loss carryforwards will not be realized. In recognition of this risk, we continue to provide a partial valuation allowance on the deferred tax assets relating to these carryforwards and it is reasonably possible that the valuation allowance may change in the next 12 months.

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.