Income Taxes	9 Months Ended
Sep. 30, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Note 14: Income Taxes At the end of each quarter, we estimate the effective tax rate expected to be applied for the full year. The effective income tax rate is determined by the level and composition of pre-tax income or loss, which is subject to federal, foreign, state and local income taxes. The effective income tax rate for the nine months ended September 30, 2018 and 2017 was approximately 27 percent and 38 percent, respectively, which decreased primarily due to a decrease in the federal corporate income tax rate as a result of the Tax Cut and Jobs Act (the “Act”) that was passed on December 22, 2017. We are applying the guidance in SEC Staff Accounting Bulletin 118 (“SAB 118”) when accounting for the enactment-date effects of the Act. As of September 30, 2018, there has been no adjustment to the provisional amounts of the Act’s effects on the one-time repatriation tax as we continue to expect to report approximately $1 million or less (net of applicable foreign tax credit) as the one-time deemed repatriation transition tax on unrepatriated foreign earnings upon our filing of the 2017 federal income tax return. Upon the enactment of the Act on December 22, 2017, we have re-measured certain deferred tax assets and liabilities using the new corporate tax rate of 21 percent, rather than the previous corporate tax rate of 35 percent, resulting in a $132 million decrease in our income tax expense for the year ended December 31, 2017. As of September 30, 2018, the re-measurement of our deferred tax balances continues to remain provisional without additional change as we continue to monitor additional guidance from the U.S. Department of the Treasury. Furthermore, we have not yet elected an accounting policy to account for the tax upon Global Intangible Low-Taxed Income (“GILTI”) in either of the following ways: 1) as a period charge in the future period the tax arises or 2) as part of deferred taxes related to the investment or subsidiary, given the complexities of the GILTI taxation. As of September 30, 2018, we have an insignificant amount of GILTI tax net of applicable foreign tax credit.

Note 14: Income Taxes

At the end of each quarter, we estimate the effective tax rate expected to be applied for the full year. The effective income tax rate is determined by the level and composition of pre-tax income or loss, which is subject to federal, foreign, state and local income taxes. The effective income tax rate for the nine months ended September 30, 2018 and 2017 was approximately 27 percent and 38 percent, respectively, which decreased primarily due to a decrease in the federal corporate income tax rate as a result of the Tax Cut and Jobs Act (the “Act”) that was passed on December 22, 2017.

We are applying the guidance in SEC Staff Accounting Bulletin 118 (“SAB 118”) when accounting for the enactment-date effects of the Act. As of September 30, 2018, there has been no adjustment to the provisional amounts of the Act’s effects on the one-time repatriation tax as we continue to expect to report approximately $1 million or less (net of applicable foreign tax credit) as the one-time deemed repatriation transition tax on unrepatriated foreign earnings upon our filing of the 2017 federal income tax return. Upon the enactment of the Act on December 22, 2017, we have re-measured certain deferred tax assets and liabilities using the new corporate tax rate of 21 percent, rather than the previous corporate tax rate of 35 percent, resulting in a $132 million decrease in our income tax expense for the year ended December 31, 2017. As of September 30, 2018, the re-measurement of our deferred tax balances continues to remain provisional without additional change as we continue to monitor additional guidance from the U.S. Department of the Treasury.

Furthermore, we have not yet elected an accounting policy to account for the tax upon Global Intangible Low-Taxed Income (“GILTI”) in either of the following ways: 1) as a period charge in the future period the tax arises or 2) as part of deferred taxes related to the investment or subsidiary, given the complexities of the GILTI taxation. As of September 30, 2018, we have an insignificant amount of GILTI tax net of applicable foreign tax credit.