Rendering

Component: (Network and Table)
Network
040704 - Disclosure - Goodwill And Other Intangible Assets (Schedule Of Indefinite-Life Intangible Assets Not Subject To Amortization) (Details)
(http://att.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfIndefiniteLifeIntangibleAssetsNotSubjectToAmortizationDetails)
TableSchedule of Acquired Indefinite-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)
Indefinite-lived Intangible Assets [Line Items]Period [Axis]
2013-12-31
2012-12-31
Indefinite-lived Intangible Assets by Major Class [Axis]Indefinite-lived Intangible Assets by Major Class [Axis]
Spectrum Licenses [Member]Trade Name [Member]Indefinite-lived Intangible Assets, Major Class Name [Domain]Spectrum Licenses [Member]Trade Name [Member]Indefinite-lived Intangible Assets, Major Class Name [Domain]
Gross carrying amount
56,433,000,000  
4,901,000,000  
61,334,000,000  
52,352,000,000  
4,902,000,000  
57,254,000,000