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Goodwill And Other Intangible Assets (Tables)
12 Months Ended
Dec. 31, 2011
Goodwill And Other Intangible Assets  
Summary Of Changes In Carrying Amount Of Goodwill, By Segment
                
   Wireless  Wireline  Advertising Solutions  Other  Total
                
Balance as of January 1, 2010 $ 35,037 $ 31,608 $ 5,731 $ 406 $ 72,782
Goodwill acquired   937   -   -   43   980
Other   (219)   62   -   (4)   (161)
Balance as of December 31, 2010   35,755   31,670   5,731   445   73,601
Goodwill acquired   5   -   -   -   5
Impairments   -   -   (2,745)   -   (2,745)
Other   (5)   1,968   (1,927)   (55)   (19)
Balance as of December 31, 2011 $ 35,755 $ 33,638 $ 1,059 $ 390 $ 70,842
Schedule Of Amortized Intangible Assets
  December 31, 2011  December 31, 2010
Other Intangible Assets  Gross Carrying Amount  Accumulated Amortization  Gross Carrying Amount  Accumulated Amortization
Amortized intangible assets:            
Customer lists and relationships:            
AT&T Mobility LLC $ 6,845 $ 5,906 $ 6,987 $ 5,240
BellSouth   9,205   7,686   9,215   6,807
AT&T Corp.   2,483   2,205   3,134   2,647
Other   350   329   350   284
Subtotal   18,883   16,126   19,686   14,978
Other   485   258   525   239
Total $ 19,368 $ 16,384 $ 20,211 $ 15,217
Schedule Of Indefinite-Life Intangible Assets Not Subject To Amortization
Indefinite-lived intangible assets not subject to amortization:       
Licenses $ 51,374    $ 50,372   
Trade names   4,985      5,154   
Total $ 56,359    $ 55,526