Income Taxes Income Taxes

3 Months Ended

Mar. 31, 2019

Income Tax Disclosure [Abstract]

Income Tax Disclosure

Income Taxes

We recognized total income tax expense from continuing operations of $111 million for the three months endedMarch 31, 2019, compared to income tax expense of $76 million for the same period in 2018. The increase in income tax expense for the three months endedMarch 31, 2019, compared to the same period in 2018, was primarily driven by the tax effects of an increase in pretax earnings.

As of each reporting date, we consider existing evidence, both positive and negative, that could impact our view with regard to future realization of deferred tax assets. We continue to believe it is more likely than not that the benefit for certain foreign tax credit carryforwards and state net operating loss carryforwards will not be realized. In recognition of this risk, we continue to provide a partial valuation allowance on the deferred tax assets relating to these carryforwards and it is reasonably possible that the valuation allowance may change in the next twelve months.