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Other Financial Information (Tables)
6 Months Ended
Jun. 30, 2013
Other Financial Information  
Schedule of other current assets

 

 

 
  Other Current Assets
 
  June 30,
2013
  December 31,
2012
 
  (Dollars in millions)

Prepaid expenses

    $ 206       195  

Other

    171       125  
         

Total other current assets

    $ 377       320