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Income Taxes
3 Months Ended
Mar. 31, 2024
Income Tax Disclosure [Abstract]  
Income Taxes
Note 6 - Income Taxes
The Company's provision for income taxes in interim periods is computed by applying the estimated annual effective tax rates to income or loss before income taxes for the period. In addition, non-recurring or discrete items are recorded during the period(s) in which they occur.
 Three Months Ended
March 31,
 20242023
Provision for income taxes$42.7 $42.5 
Effective tax rate27.9 %25.3 %
Income tax expense for the three months ended March 31, 2024 was calculated using forecasted multi-jurisdictional annual effective tax rates to determine a blended annual effective tax rate. The effective tax rate differs from the U.S. federal statutory rate of 21% primarily due to the actual and projected mix of earnings in non-U.S. jurisdictions with relatively higher tax rates.

The effective tax rate of 27.9% for the three months ended March 31, 2024 was higher than the effective tax rate for the three months ended March 31, 2023 primarily due to an increase in the mix of earnings in non-U.S. jurisdictions with relatively higher tax rates and the net favorable impact of discrete items in the year ago period.
On December 20, 2021, the Organization for Economic Co-operation and Development (“OECD”) released Pillar Two model rules defining the global minimum tax, which calls for the taxation of large corporations at a minimum rate of 15%. Certain jurisdictions, in which the Company operates, enacted, or announced their intention to enact, legislation consistent with one or more OECD Pillar Two model rules. The model rules include minimum domestic top-up taxes, income inclusion rules, and undertaxed profit rules all aimed to ensure that multinational companies pay a minimum effective corporate tax rate of 15% in each jurisdiction in which they operate, with some rules effective in 2024. Management does not expect Pillar Two legislation to materially impact the Company's annual effective tax rate in 2024.