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Income Taxes
6 Months Ended
Jun. 30, 2024
Income Tax Disclosure [Abstract]  
Income Taxes Income Taxes
At the end of each interim period, we estimate our annual effective tax rate and apply that rate to our interim earnings. We also record the tax impact of certain unusual or infrequently occurring items, including changes in judgment about valuation allowances and the effects of changes in tax laws or rates, in the interim period in which they occur.

The computation of the annual estimated effective tax rate at each interim period requires certain estimates and significant judgment including, but not limited to, the expected operating income for the year, projections of the proportion of income earned and taxed in state and foreign jurisdictions, permanent and temporary differences between book and taxable income, and the likelihood of recovering deferred tax assets generated in the current year. The accounting estimates used to compute the provision for income taxes may change as new events occur, additional information is obtained or as the tax environment changes.

Our effective income tax rate for the six months ended June 30, 2024 was 30.8%, compared to 27.1% for the six months ended June 30, 2023. The increase in the effective tax rate for the six months ended June 30, 2024 compared to the six months ended June 30, 2023 was primarily attributable to the 3.9% unfavorable impact of discrete items, mostly related to the 2024 Global Restructuring Plan impairments. Refer to Note 8, "Restructuring and Transaction Related Expenses" for further information on the impairments.
The Organisation for Economic Co-operation and Development ("OECD") released a framework, referred to as Pillar Two, to implement a global minimum corporate tax rate of 15% on certain multinational enterprises. Certain countries have enacted legislation to adopt the Pillar Two framework while several countries are considering or still announcing changes to their tax laws to implement the minimum tax directive. While we do not currently estimate Pillar Two to have a material impact on our effective tax rate, our analysis will continue as the OECD continues to release additional guidance and countries implement legislation.