Income Taxes (Notes)	6 Months Ended
Jun. 30, 2015
Income Tax Disclosure [Abstract]
Income Tax Disclosure [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. 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 three months ended June 30, 2014 income tax benefit of $254 million primarily resulted from tax benefit attributable to entities included in our effective tax rate calculation. 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. In the six months ended June 30, 2014 income tax benefit of $478 million primarily resulted from tax benefit attributable to entities included in our effective tax rate calculation and deductions taken for stock investments in non-US affiliates. At June 30, 2015 we had $33.4 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.

Income Taxes (Notes)

6 Months Ended

Jun. 30, 2015

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.

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 three months ended June 30, 2014 income tax benefit of $254 million primarily resulted from tax benefit attributable to entities included in our effective tax rate calculation.

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. In the six months ended June 30, 2014 income tax benefit of $478 million primarily resulted from tax benefit attributable to entities included in our effective tax rate calculation and deductions taken for stock investments in non-US affiliates.

At June 30, 2015 we had $33.4 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.