Income Taxes	6 Months Ended
Jun. 30, 2015
Income Tax Disclosure [Abstract]
Income Tax Disclosure [Text Block]	Income Taxes We recognized total income tax expense from continuing operations of $94 million and $197 million for the three months and six months ended June 30, 2015, compared to income tax expense of $64 million and $158 million for the same periods in 2014. The increase in income tax expense for the three months and six months ended June 30, 2015, compared to the same periods in 2014, was primarily driven by a non-recurring tax benefit in the second quarter of 2014 related to the reduction in the liability for unrecognized tax benefits as a result of the completion of the U.S. federal audit related to our 2009 through 2011 tax years. As of each reporting date, we consider existing evidence, both positive and negative, that could impact our view with regard to future realization of deferred tax assets. We continue to believe it is more likely than not that the benefit for certain foreign tax credits and state net operating loss carryforwards will not be realized. In recognition of this risk, we continue to provide a partial valuation allowance on the deferred tax assets relating to these carryforwards. It is reasonably possible the unrecognized tax benefits disclosed in our 2014 Annual Report will decrease by up to $180 million over the next 12 months if certain tax matters ultimately settle with the applicable taxing jurisdiction as anticipated.

Income Taxes

6 Months Ended

Jun. 30, 2015

Income Taxes

We recognized total income tax expense from continuing operations of $94 million and $197 million for the three months and six months ended June 30, 2015, compared to income tax expense of $64 million and $158 million for the same periods in 2014. The increase in income tax expense for the three months and six months ended June 30, 2015, compared to the same periods in 2014, was primarily driven by a non-recurring tax benefit in the second quarter of 2014 related to the reduction in the liability for unrecognized tax benefits as a result of the completion of the U.S. federal audit related to our 2009 through 2011 tax years.

As of each reporting date, we consider existing evidence, both positive and negative, that could impact our view with regard to future realization of deferred tax assets. We continue to believe it is more likely than not that the benefit for certain foreign tax credits and state net operating loss carryforwards will not be realized. In recognition of this risk, we continue to provide a partial valuation allowance on the deferred tax assets relating to these carryforwards.

It is reasonably possible the unrecognized tax benefits disclosed in our 2014 Annual Report will decrease by up to $180 million over the next 12 months if certain tax matters ultimately settle with the applicable taxing jurisdiction as anticipated.