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Fair Value Disclosure (Tables)
9 Months Ended
Sep. 30, 2011
Fair Value Disclosure 
Fair Value, By Balance Sheet Grouping
     Input Level      Successor
September 30, 2011
           Predecessor
December 31, 2010
 
        Carrying Amount      Fair Value            Carrying Amount      Fair Value  
            (Dollars in millions)  

Assets—Investment securities

     3       $                      92         92   

Liabilities—Long-term debt excluding, capital lease obligations

     2       $ 12,570         12,087              11,583         12,480   
Rollforward Of Auction Rate Securities
     Auction Rate Securities  
     (Dollars in millions)  

Balance at December 31, 2010 (Predecessor)

   $ 92   

Dispositions and settlements

       

Included in other income (expense)

       
  

 

 

 

Balance at March 31, 2011 (Predecessor)

   $ 92   
  

 

 

 
  
  

Fair value adjustment

     (13
  

 

 

 

Balance at April 1, 2011 (Successor)

     79   
  

 

 

 

Assignments to CenturyLink

     (79
  

 

 

 

Balance at September 30, 2011 (Successor)

   $             —