Registration of securities issued in business combination transactions

Schedule II-Valuation and Qualifying Accounts

v2.4.0.6
Schedule II-Valuation and Qualifying Accounts
 12 Months Ended
Dec. 31, 2012
Schedule II-Valuation and Qualifying Accounts  
Schedule II-Valuation and Qualifying Accounts

Schedule II—Valuation and Qualifying Accounts
(Dollars in Millions)

Column A
  Column B   Column C    
   Column D   Column E  
 
    
   Additions    
    
    
  
Description
  Balance at
Beginning of
Period		   Charges
(Credits)
to cost and
expenses		   Charged to
other
accounts		   Deductions   Balance at
End of
Period		  

Allowance for Doubtful Accounts:

                                

Year ended December 31, 2012

   $ 46   $ 4   $ (3 ) $ —   $ 47  

Year ended December 31, 2011

     52     (4 )   (2 )   —     46  

Year ended December 31, 2010

     56     6     (10 )   —     52