Quarterly report pursuant to Section 13 or 15(d)


$ in Millions
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Income Tax Disclosure [Abstract]    
Our effective tax rate for both the three months ended March 31, 2020 and March 31, 2019 was approximately 22.8%. The recognition in income tax of excess tax benefits related to share-based compensation reduced our effective rate by 0.7% for the three months ended March 31, 2020 compared to 0.4% in the same period of 2019. Other items that impacted our effective tax rate in the first quarter of 2020 compared to 2019 include unfavorable changes in uncertain tax positions.
As discussed in our Annual Report on Form 10-K for the year ended December 31, 2019, we have recognized liabilities for uncertain tax positions. 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. It is reasonably possible that the amount of unrecognized tax benefits could significantly increase or decrease within the next twelve months. However, an estimate of the range of reasonably possible outcomes cannot be made. Items that may cause changes to unrecognized tax benefits include the timing of interest 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 statutes of limitations, additional regulatory guidance on the Tax Cuts and Jobs Act or other unforeseen circumstances.
As discussed in note 17, we recognized pre-tax transformation strategy costs of $45 million in the first quarter of 2020 compared to $123 million in the first quarter of 2019. As a result, we recorded an additional income tax benefit of $10 million in the first quarter of 2020 compared to $30 million in the first quarter of 2019. This benefit was generated at a higher average tax rate than the U.S. federal statutory tax rate primarily due to the effect of U.S. state and local taxes and foreign taxes.
Transformation cost $ 45 $ 123