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Income Taxes
6 Months Ended
Jun. 30, 2021
Income Tax Disclosure [Abstract]  
Income Taxes INCOME TAXES 
Our effective income tax rate was 19.5% for the three months ended June 30, 2021, as compared to 18.9% for the three months ended June 30, 2020, and 17.3% for the six months ended June 30, 2021, as compared to 18.6% for the six months ended June 30, 2020.The increase in our effective tax rate for the three months ended June 30, 2021, as compared to the same period in the prior year, was primarily due to changes in the regional earnings mix. The decrease in our effective tax rate for the six months ended June 30, 2021, as compared to the same period in the prior year, was primarily driven by an overall increase in tax benefits from share-based compensation.

The effective tax rate for the three and six months ended June 30, 2021, differed from the U.S. statutory tax rate of 21% primarily due to tax benefits from share-based compensation.