Income Taxes	9 Months Ended
Sep. 30, 2016
Income Tax Disclosure [Abstract]
Income Taxes [Text Block]	Note 8: Income Taxes The U.S. examination of tax years 2010-2012 commenced during the fourth quarter of 2013. In December 2015, we executed a closing agreement with the Internal Revenue Service which effectively settled certain matters for tax years 2010-2012. Accordingly, we reduced our gross uncertain tax positions by approximately $320 million in 2015. During the first quarter of 2016, we effectively settled the remaining matters related to tax years 2010-2012. As a result of this resolution, our gross uncertain tax positions were further reduced by approximately $140 million, and our consolidated condensed results of operations benefited from an immaterial reduction in income tax expense. During the nine months ended September 30, 2016, we made cash payments of approximately $150 million related to tax years 2010-2012 after application of available tax credit carryforwards and carrybacks. The U.S. examination of tax years 2013-2014 and tax year 2015 commenced during the first and third quarters of 2016, respectively.

Income Taxes

9 Months Ended

Sep. 30, 2016

Note 8: Income Taxes

The U.S. examination of tax years 2010-2012 commenced during the fourth quarter of 2013. In December 2015, we executed a closing agreement with the Internal Revenue Service which effectively settled certain matters for tax years 2010-2012. Accordingly, we reduced our gross uncertain tax positions by approximately $320 million in 2015. During the first quarter of 2016, we effectively settled the remaining matters related to tax years 2010-2012. As a result of this resolution, our gross uncertain tax positions were further reduced by approximately $140 million, and our consolidated condensed results of operations benefited from an immaterial reduction in income tax expense. During the nine months ended September 30, 2016, we made cash payments of approximately $150 million related to tax years 2010-2012 after application of available tax credit carryforwards and carrybacks. The U.S. examination of tax years 2013-2014 and tax year 2015 commenced during the first and third quarters of 2016, respectively.