Income Taxes	6 Months Ended
Jun. 30, 2021
Income Tax Disclosure [Abstract]
Income Taxes	5. Income Taxes During the 2021 second quarter, the United Kingdom enacted an increase in its corporate income tax rates from 19% to 25% effective April 1, 2023, which resulted in a one-time adjustment to our net deferred tax liabilities of approximately $43 million.

- 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.

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