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Debt (Tables)
6 Months Ended
Jun. 30, 2011
Debt  
Combined Schedule of Current and Noncurrent Debt and Capital Lease Obligations
                         
(dollars in millions)    Debt Maturing
within One Year
   

Long-term

Debt

    Total  

Balance at January 1, 2011

   $ 7,542     $   45,252     $   52,794  

Proceeds from long-term borrowings

            6,440       6,440  

Repayments of long-term borrowings and capital leases obligations

     (7,356            (7,356

Increase in short-term obligations, excluding current maturities

     1,012              1,012  

Reclassifications of long-term debt

     3,850       (3,850       

Debt acquired (Note 2)

     748              748  

Other

     259       85       344  
          

Balance at June 30, 2011

   $ 6,055     $ 47,927     $ 53,982