v2.4.0.8
Schedule II Valuation and Qualifying Accounts (Tables)
12 Months Ended
Dec. 31, 2013
Schedule II-Valuation and Qualifying Accounts
Comcast Corporation and Subsidiaries        
Schedule II — Valuation and Qualifying Accounts        
Year ended December 31, 2013, 2012 and 2011        
          
Year Ended December 31 (in millions) Balance at Beginning of Year Additions Charged to Costs and Expenses Deductions from Reserves Balance at End of Year
          
2013        
 Allowance for doubtful accounts$ 198$ 317$ 294$ 221
 Allowance for returns and customer incentives  307  528  460  375
 Valuation allowance on deferred tax assets  355  71  21  405
2012        
 Allowance for doubtful accounts$ 202$293$297$ 198
 Allowance for returns and customer incentives  425  599  717  307
 Valuation allowance on deferred tax assets  297  61  3  355
2011        
 Allowance for doubtful accounts$ 173$306$277$ 202
 Allowance for returns and customer incentives  -  536  111  425
 Valuation allowance on deferred tax assets  207  103  13  297
NBCUniversal Media, LLC [Member]
 
Schedule II-Valuation and Qualifying Accounts
NBCUniversal Media, LLC        
Schedule II — Valuation and Qualifying Accounts        
          
(in millions) Balance at Beginning of Period Additions Charged to Costs and Expenses Deductions from Reserves Balance at End of Period
Successor        
Year ended December 31, 2013        
 Allowance for doubtful accounts$ 46$ 33$ 14$ 65
 Allowance for returns and customer incentives  307  525  460  372
 Valuation allowance on deferred tax assets  73  8  21  60
Year ended December 31, 2012        
 Allowance for doubtful accounts$ 34$19$7$ 46
 Allowance for returns and customer incentives  425  599  717  307
 Valuation allowance on deferred tax assets  53  23  3  73
Period January 29, 2011 through December 31, 2011        
 Allowance for doubtful accounts$ 7$35$8$ 34
 Allowance for returns and customer incentives  -  536  111  425
 Valuation allowance on deferred tax assets  57  9  13  53