Rendering

Component: (Network and Table)
Network
040703 - Disclosure - Goodwill And Other Intangible Assets (Schedule Of Amortized Intangible Assets) (Details)
(http://att.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfAmortizedIntangibleAssetsDetails)
TableSchedule of Finite-Lived Intangible Assets by Major Class [Table]
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0000732717 (http://www.sec.gov/CIK)
Finite Lived Intangible Assets [Line Items]Period [Axis]
2013-12-31
2012-12-31
Finite-Lived Intangible Assets by Major Class [Axis]Finite-Lived Intangible Assets by Major Class [Axis]
At T Mobility Llc[ Member]Bellsouth Corporation [Member]At T Corp [Member]Other Customer Lists And Relationships [Member]Other Intangible Assets Subtotal [Member]Other Intangible Assets [Member]Customer Lists And Relationships [Member]At T Mobility Llc[ Member]Bellsouth Corporation [Member]At T Corp [Member]Other Customer Lists And Relationships [Member]Other Intangible Assets Subtotal [Member]Other Intangible Assets [Member]Customer Lists And Relationships [Member]
Gross carrying amount
982,000,000  
5,825,000,000  
2,482,000,000  
0  
9,289,000,000  
284,000,000  
9,573,000,000  
6,760,000,000  
5,825,000,000  
2,490,000,000  
351,000,000  
15,426,000,000  
304,000,000  
15,730,000,000  
Accumulated amortization
771,000,000  
5,317,000,000  
2,438,000,000  
0  
8,526,000,000  
169,000,000  
8,695,000,000  
6,335,000,000  
4,994,000,000  
2,356,000,000  
350,000,000  
14,035,000,000  
174,000,000  
14,209,000,000