XML 41 R40.htm IDEA: XBRL DOCUMENT v2.4.0.6
Other Financial Information (Tables)
12 Months Ended
Dec. 31, 2012
Other Financial Information  
Schedule of other current assets reflected on the entity's balance sheets

 

 
  Other Current Assets  
 
  December 31,
2012
  December 31,
2011
 
 
  (Dollars in millions)
 

Prepaid expenses

  $ 64     57  

Other

    50     41  
           

Total other current assets

  $ 114     98