As discussed further under “Critical Accounting Policies and Estimates—Deferred Tax Assets” and “Note 10, Income Taxes,” in evaluating the recoverability of our deferred tax assets, as of December 31, 2012, we again determined that the negative evidence outweighed the positive evidence. Therefore we did not release any of our valuation allowance as of December 31, 2012. The valuation allowance as of December 31, 2012 was $58.9 billion. |