v2.4.0.6
Schedule II: Valuation and Qualifying Accounts
 12 Months Ended
Dec. 31, 2011
Schedule II: Valuation and Qualifying Accounts

Schedule II: Valuation and Qualifying Accounts

 

Allowance for Doubtful Accounts and Sales Credits

    Balance at
Beginning of
Year		      Charged to
Expenses/
Against
Revenue		      Write-Offs,
Net of
Recoveries		     Balance at
End of Year		  
     (In millions)  

Year ended December 31, 2009

    $ 80       $ 149       $ (150 )    $ 79   

Year ended December 31, 2010

    $ 79       $ 200       $ (178 )    $ 101   

Year ended December 31, 2011

    $ 101       $ 214       $ (182 )    $ 133   

 

Note: Additions to the allowance for doubtful accounts are charged to expense. Additions to the allowance for sales credits are charged against revenues.