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Income Taxes (Notes)
6 Months Ended
Jun. 30, 2016
Income Tax Disclosure [Abstract]  
Income Taxes [Text Block]
Income Taxes
For interim income tax reporting we estimate our annual effective tax rate and apply it to our year to date ordinary income (loss). Tax jurisdictions with a projected or year to date loss for which a tax benefit cannot be realized are excluded. The tax effects of unusual or infrequently occurring items, including changes in judgment about valuation allowances and effects of changes in tax laws or rates, are reported in the interim period in which they occur. We have open tax years from 2006 to 2015 with various significant tax jurisdictions.

In the three months ended June 30, 2016 income tax expense of $871 million primarily resulted from tax expense attributable to entities included in our effective tax rate calculation of $1.2 billion, partially offset by tax benefits related to foreign currency losses. In the three months ended June 30, 2015 income tax expense of $577 million resulted from tax expense attributable to entities included in our effective tax rate calculation of $793 million, partially offset by net favorable discrete adjustments related to uncertain tax positions and other items.

In the six months ended June 30, 2016 income tax expense of $1.4 billion primarily resulted from tax expense attributable to entities included in our effective tax rate calculation of $2.0 billion, partially offset by tax benefits related to foreign currency losses, tax audit settlements and deduction taken for stock investments in non-U.S. affiliates. In the six months ended June 30, 2015 income tax expense of $1.1 billion resulted from tax expense attributable to entities included in our effective tax rate calculation of $1.3 billion, partially offset by net favorable discrete adjustments related to uncertain tax positions and other items.

At June 30, 2016 we had $35.0 billion of net deferred tax assets consisting of: (1) net operating losses and income tax credits; (2) capitalized research expenditures; and (3) other timing differences that are available to offset future income tax liabilities.