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Income Taxes | 6 Months Ended
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Jun. 30, 2018
Income Tax Disclosure [Abstract] |
Income Taxes | (10) Income Taxes Our effective income tax rates were 23.5% and 35.3% during the three-month periods ended June 30, 2018 and 2017, respectively, and 23.2% and 34.6% during the six-month periods ended June 30, 2018 and 2017, respectively. The decreases in the effective tax rates during the three and six-month periods ended June 30, 2018, as compared to the comparable periods in 2017, were primarily due to the Tax Cuts and Jobs Act of 2017 (the “TCJA-17”), which reduced the U.S. federal corporate tax rate from 35% to 21% effective January 1, 2018. Partially offsetting the favorable impact of the TCJA-17 during the 2018 periods, as compared to the comparable 2017 periods, were unfavorable changes of $1 million during the three-month period ended June 30, 2018 and $6 million during the six-month period ended June 30, 2018, resulting from our January 1, 2017 adoption of ASU 2016-09,“Compensation – Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting”. The adoption of ASU 2016-09 resulted in no significant impact to our provision for income taxes during the second quarter of 2018, as compared to a $1 million reduction during the second quarter of 2017, and decreased our provision for income taxes by $2 million during the first six months of 2018 as compared to an $8 million decrease during the first six months of 2017. The TCJA-17 enacted on December 22, 2017 makes broad and complex changes to the U.S. tax code, including, but not limited to, (1) reducing the U.S. federal corporate tax rate from 35% to 21%; (2) requiring companies to pay a one-time transition tax on certain unrepatriated earnings of foreign subsidiaries; (3) generally eliminating U.S. federal income taxes on dividends from foreign subsidiaries; (4) requiring a current inclusion in U.S. federal taxable income of certain earnings of controlled foreign corporations through the implementation of a territorial tax system; and (5) creating a new limitation on deductible interest expense. Due to the complexities involved in accounting for the TCJA-17, the SEC issued Staff Accounting Bulletin No. 118 (“SAB 118"), which allows a measurement period of up to one year after the enactment date of the TCJA-17 to finalize the recording of the related tax impacts. We applied the guidance in SAB 118 and at December 31, 2017, recorded provisional estimates to re-measure our deferred taxes using the new 21% rate ($30 million tax benefit) and to record an estimated transition tax ($11.3 million expense). During the six months ended June 30, 2018, we have not made any additional measurement period adjustments related to the provisional estimates recorded at December 31, 2017. However, we are continuing to gather additional information to complete our accounting for these items and expect to complete our accounting within the prescribed measurement period. The global intangible low-taxed income (“GILTI”) provisions from the TCJA-17 require the inclusion of the earnings of certain foreign subsidiaries in excess of an acceptable rate of return on certain assets of the respective subsidiaries in our U.S. tax return for tax years beginning after December 31, 2017. We recorded an estimate in our effective tax rate for the six months ended June 30, 2018. Due to the complexities around the calculation we have not recorded any provisional deferred tax effects related to the GILTI tax and will not make an accounting policy election at this time with respect to deferred tax effects of GILTI for our consolidated financial statements six months ended June 30, 2018. As of January 1, 2018, our unrecognized tax benefits were approximately $1 million. The amount, if recognized, that would favorably affect the effective tax rate is approximately $1 million. During the six months ended June 30, 2018, changes to the estimated liabilities for uncertain tax positions (including accrued interest) relating to tax positions taken during prior and current periods did not have a material impact on our financial statements. We recognize accrued interest and penalties associated with uncertain tax positions as part of the tax provision. As of June 30, 2018, we have less than $1 million of accrued interest and penalties. The U.S. federal statute of limitations remains open for 2014 and subsequent years. Foreign and U.S. state and local jurisdictions have statutes of limitations generally ranging from 3 to 4 years. The statute of limitations on certain jurisdictions could expire within the next twelve months. It is reasonably possible that the amount of uncertain tax benefits will change during the next 12 months, however, it is anticipated that any such change, if it were to occur, would not have a material impact on our results of operations. We operate in multiple jurisdictions with varying tax laws. We are subject to audits by any of these taxing authorities. Our tax returns have been examined by the Internal Revenue Service (“IRS”) through the year ended December 31, 2006. We believe that adequate accruals have been provided for federal, foreign and state taxes.

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- Definition The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -URI http://asc.fasb.org/topic&trid=2144680 + Details
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