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Income Taxes
6 Months Ended
Jun. 30, 2013
Income Tax Disclosure [Abstract]  
INCOME TAXES
INCOME TAXES

For interim tax reporting we estimate one single effective tax rate for tax jurisdictions not subject to a valuation allowance, which is applied to the year-to-date ordinary income/(loss). Tax effects of significant unusual or extraordinary items are excluded from the estimated annual effective tax rate calculation and recognized in the interim period in which they occur.

The American Taxpayer Relief Act of 2012 (the "Act") was signed into law on January 2, 2013. The Act reinstated the U.S. federal research and development tax credit and U.S. tax deferral of certain foreign source income, retroactive to January 1, 2012. As a result, the tax provision for the period ended June 30, 2013 reflects a $221 million tax benefit related to the retroactive provisions of the Act.