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Includes deferred tax liabilities associated with the exchange of debt securities in 2010 (see Note 10) and 2006. 2
Includes net foreign current deferred tax liabilities, which are included on the Balance Sheets in other current liabilities. 215Income Taxes (Components of Federal and Foreign Deferred Income Tax Assets and Liabilities) (Details) (USD $)MillionsUnKnownUnKnownUnKnownfalsetrue
