Income Taxes (Notes)

6 Months Ended

Jun. 30, 2018

Income Tax Disclosure [Abstract]

INCOME TAXES

INCOME TAXES

For interim tax reporting, we estimate one single effective tax rate for tax jurisdictions not subject to a valuation allowance, which is applied to the year-to-date ordinary income/(loss). Tax effects of significant unusual or infrequently occurring items are excluded from the estimated annual effective tax rate calculation and recognized in the interim period in which they occur.

For the second quarter and first half of 2018, our effective tax rates were 20.8% and 13.9%, respectively. During the first quarter of 2018, we recognized $235 million of benefit for non-U.S. capital loss carryforwards expected to be realized in the foreseeable future.