XML 57 R47.htm IDEA: XBRL DOCUMENT v2.4.0.8
Valuation And Qualifying Accounts (Tables)
12 Months Ended
Dec. 31, 2013
Valuation And Qualifying Accounts  
Allowance For Doubtful Accounts
           
           
COL. A COL. BCOL. CCOL. D COL. E
    Additions    
    (1)(2)(3)    
  Balance atCharged toCharged to     
  Beginning ofCosts andOther   Balance at End
  PeriodExpenses (a)Accounts (b)AcquisitionsDeductions (c) of Period
           
Year 2013 $547954(30) -988 $483
Year 2012 $8781,11748 -1,496 $547
Year 2011 $9571,13638 -1,253 $878
           
           
(a) Includes amounts previously written off which were credited directly to this account when recovered.
Excludes direct charges and credits to expense for nontrade receivables on the consolidated statements of income.
(b) Includes amounts related to long-distance carrier receivables which were billed by AT&T.
(c) Amounts written off as uncollectible, or related to divested entities.