Quarterly report pursuant to Section 13 or 15(d)


6 Months Ended
Jun. 30, 2023
Income Tax Disclosure [Abstract]  
Our effective tax rate increased to 23.5% in the second quarter from 22.9% in the same period of 2022 (24.2% year to date compared to 22.3% in 2022). The year-over-year increase was driven by lower excess tax benefits related to share-based compensation, unfavorable changes in jurisdictional earnings mix and uncertain tax positions.
We have recognized liabilities for uncertain tax positions and we reevaluate these uncertain tax positions on a quarterly basis. A number of years may elapse before an uncertain tax position is audited and ultimately settled. It is difficult to predict the ultimate outcome or the timing of resolution for uncertain tax positions. Items that may cause changes to unrecognized tax benefits include the allowance or disallowance of deductions, the timing of deductions and the allocation of income and expense between tax jurisdictions. These changes could result from the settlement of ongoing litigation, the completion of ongoing examinations, the expiration of the statute of limitations or other unforeseen circumstances. Over the next twelve months, it is reasonably possible that the amount of unrecognized tax benefits may decrease by up to $186 million.