Annual report pursuant to Section 13 and 15(d)

Assets And Liabilities Measured At Fair Value Non-recurring basis (details) (Details)

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Assets And Liabilities Measured At Fair Value Non-recurring basis (details) (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Goodwill and Intangible Asset Impairment $ 33 $ 92 $ 0