Component: (Network and Table) | |
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Network | 040704 - Disclosure - Goodwill And Other Intangible Assets (Schedule Of Indefinite-Life Intangible Assets Not Subject To Amortization) (Details) (http://att.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfIndefiniteLifeIntangibleAssetsNotSubjectToAmortizationDetails) |
Table | Schedule of Acquired Indefinite-lived Intangible Assets by Major Class [Table] |
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 |