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Income Taxes
 6 Months Ended
Jun. 30, 2023
Income Tax Disclosure [Abstract]  
Income Taxes
Note 19—Income Taxes
Our effective tax rate for the three-month periods ended June 30, 2023 and 2022 was 33.6 percent and 32.8 percent, respectively, and our effective tax rate for the six-month periods ended June 30, 2023 and 2022, was 35.0 percent and 29.9 percent, respectively. The change in our effective tax rate for the six-month period ended June 30, 2023 is primarily due to the absence of a release of tax reserves as described below and a shift in our mix of income among our tax jurisdictions.

In the first quarter of 2022, the IRS closed the 2017 audit of our U.S. federal income tax return. As a result, we recognized federal and state tax benefits totaling $515 million relating to the recovery of outside tax basis previously offset by a full reserve.

The Company has ongoing income tax audits in a number of jurisdictions. The government agents in charge of these audits regularly request additional time to complete audits, which we generally grant, and conversely occasionally close audits unpredictably. Within the next twelve months, we may have audit periods close that could significantly impact our total unrecognized tax benefits. The amount of such change is not estimable but could be significant when compared with our total unrecognized tax benefits.