Income Taxes	9 Months Ended
Sep. 30, 2013
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes For our continuing operations, we had income tax expense of $2 million and an effective tax rate of 7.7% in the third quarter of 2013. In the United States, we are in a net operating loss carryforward position and our deferred income tax assets are subject to a valuation allowance. Therefore, any income or loss before income taxes does not generate a corresponding income tax expense or benefit. For our continuing operations, for the first nine months of 2013, we had an effective tax rate of 1.9% as we recorded income tax expense of $1 million on pre-tax income of $52 million. An income tax benefit of $3 million during the first quarter of 2013 primarily related to the release of the valuation allowance against a portion of our alternative minimum tax, or AMT, credits. This change in the realizability of those credits was due to the enactment of the American Taxpayer Relief Act of 2012. In assessing the requirement for, and amount of, a valuation allowance in accordance with the more-likely-than-not standard, we give appropriate consideration to all positive and negative evidence related to the realization of the deferred tax assets. As of September 30, 2013, we had federal net operating loss, or NOL, carryforwards of approximately $2.079 billion that are available to offset future federal taxable income and will expire in the years 2026 through 2033, none of which are subject to Internal Revenue Code limitations under Section 382. In addition, as of that date, we had federal AMT credit carryforwards of approximately $45 million that are available to reduce future regular federal income taxes over an indefinite period. In order to fully realize these U.S. federal net deferred tax assets, taxable income of approximately $2.208 billion would need to be generated during the period before their expiration. In addition, we have federal foreign tax credit carryforwards of $8 million that will expire in 2015. As of September 30, 2013, we had a gross deferred tax asset related to our state NOLs and tax credit carryforwards of $269 million, of which $1 million will expire in 2013. The remainder will expire if unused in years 2014 through 2033. We also had NOL and tax credit carryforwards in various foreign jurisdictions in the amount of $2 million as of September 30, 2013, against which we have maintained a valuation allowance. During periods prior to 2013, we established a valuation allowance against our deferred tax assets totaling $1.125 billion. Based upon an evaluation of all available evidence, we recorded a decrease in the valuation allowance against our deferred tax assets of $4 million during the first quarter of 2013. Approximately $3 million of the decrease related to the realizability of our deferred tax assets; therefore, we recorded a related $3 million income tax benefit in our consolidated statement of operations. The other $1 million of the decrease resulted from a reduction in the gross value of our deferred tax assets and, as a result, we recorded a corresponding reduction in the valuation allowance, resulting in no net impact to our consolidated statement of operations. In the second quarter of 2013, we recorded an additional decrease in the valuation allowance of $16 million. The decrease resulted from a reduction in the gross value of our deferred tax assets and, as a result, there was no net impact to our consolidated statement of operations. In the third quarter of 2013, we recorded an additional decrease in the valuation allowance of $13 million. The decrease resulted from a reduction in the gross value of our deferred tax assets and, as a result, there was no net impact to our consolidated statement of operations. The decreases in the valuation allowance in 2013 resulted in a deferred tax asset valuation allowance of $1.092 billion as of September 30, 2013. The Internal Revenue Code imposes limitations on a corporation’s ability to utilize NOLs if it experiences an “ownership change.” In general terms, an ownership change may result from transactions increasing the ownership of certain stockholders in the stock of a corporation by more than 50 percentage points over a three-year period. If we were to experience an ownership change, utilization of our NOLs would be subject to an annual limitation determined by multiplying the market value of our outstanding shares of stock at the time of the ownership change by the applicable long-term tax-exempt rate, which was 3.28% for September 2013. Any unused annual limitation may be carried over to later years within the allowed NOL carryforward period. The amount of the limitation may, under certain circumstances, be increased or decreased by built-in gains or losses held by us at the time of the change that are recognized in the five-year period after the change. Many states have similar limitations. If an ownership change had occurred as of September 30, 2013, our annual U.S. federal NOL utilization would have been limited to approximately $102 million per year. See Note 15 for a description of our recent actions to protect these NOL carryforwards.

Income Taxes

For our continuing operations, we had income tax expense of $2 million and an effective tax rate of 7.7% in the third quarter of 2013. In the United States, we are in a net operating loss carryforward position and our deferred income tax assets are subject to a valuation allowance. Therefore, any income or loss before income taxes does not generate a corresponding income tax expense or benefit.

For our continuing operations, for the first nine months of 2013, we had an effective tax rate of 1.9% as we recorded income tax expense of $1 million on pre-tax income of $52 million. An income tax benefit of $3 million during the first quarter of 2013 primarily related to the release of the valuation allowance against a portion of our alternative minimum tax, or AMT, credits. This change in the realizability of those credits was due to the enactment of the American Taxpayer Relief Act of 2012.

In assessing the requirement for, and amount of, a valuation allowance in accordance with the more-likely-than-not standard, we give appropriate consideration to all positive and negative evidence related to the realization of the deferred tax assets. As of September 30, 2013, we had federal net operating loss, or NOL, carryforwards of approximately $2.079 billion that are available to offset future federal taxable income and will expire in the years 2026 through 2033, none of which are subject to Internal Revenue Code limitations under Section 382. In addition, as of that date, we had federal AMT credit carryforwards of approximately $45 million that are available to reduce future regular federal income taxes over an indefinite period. In order to fully realize these U.S. federal net deferred tax assets, taxable income of approximately $2.208 billion would need to be generated during the period before their expiration. In addition, we have federal foreign tax credit carryforwards of $8 million that will expire in 2015.

As of September 30, 2013, we had a gross deferred tax asset related to our state NOLs and tax credit carryforwards of $269 million, of which $1 million will expire in 2013. The remainder will expire if unused in years 2014 through 2033. We also had NOL and tax credit carryforwards in various foreign jurisdictions in the amount of $2 million as of September 30, 2013, against which we have maintained a valuation allowance.

During periods prior to 2013, we established a valuation allowance against our deferred tax assets totaling $1.125 billion. Based upon an evaluation of all available evidence, we recorded a decrease in the valuation allowance against our deferred tax assets of $4 million during the first quarter of 2013. Approximately $3 million of the decrease related to the realizability of our deferred tax assets; therefore, we recorded a related $3 million income tax benefit in our consolidated statement of operations. The other $1 million of the decrease resulted from a reduction in the gross value of our deferred tax assets and, as a result, we recorded a corresponding reduction in the valuation allowance, resulting in no net impact to our consolidated statement of operations. In the second quarter of 2013, we recorded an additional decrease in the valuation allowance of $16 million. The decrease resulted from a reduction in the gross value of our deferred tax assets and, as a result, there was no net impact to our consolidated statement of operations. In the third quarter of 2013, we recorded an additional decrease in the valuation allowance of $13 million. The decrease resulted from a reduction in the gross value of our deferred tax assets and, as a result, there was no net impact to our consolidated statement of operations. The decreases in the valuation allowance in 2013 resulted in a deferred tax asset valuation allowance of $1.092 billion as of September 30, 2013.

The Internal Revenue Code imposes limitations on a corporation’s ability to utilize NOLs if it experiences an “ownership change.” In general terms, an ownership change may result from transactions increasing the ownership of certain stockholders in the stock of a corporation by more than 50 percentage points over a three-year period. If we were to experience an ownership change, utilization of our NOLs would be subject to an annual limitation determined by multiplying the market value of our outstanding shares of stock at the time of the ownership change by the applicable long-term tax-exempt rate, which was 3.28% for September 2013. Any unused annual limitation may be carried over to later years within the allowed NOL carryforward period. The amount of the limitation may, under certain circumstances, be increased or decreased by built-in gains or losses held by us at the time of the change that are recognized in the five-year period after the change. Many states have similar limitations. If an ownership change had occurred as of September 30, 2013, our annual U.S. federal NOL utilization would have been limited to approximately $102 million per year. See Note 15 for a description of our recent actions to protect these NOL carryforwards.