| Line |
Label |
Object Class (Data type) |
Period Type |
Balance |
Report Element Name |
| 1 |
Equity Method Investments |
Abstract |
|
|
us-gaap:EquityMethodInvestmentsAndJointVenturesAbstract |
| 2 |
Beginning of year |
Concept (Monetary) |
As Of |
Debit |
us-gaap:EquityMethodInvestments |
| 3 |
Additional investments |
Concept (Monetary) |
For Period |
Debit |
t:EquityMethodInvestmentAdditionalInvestments |
| 4 |
Equity in net income of affiliates |
Concept (Monetary) |
For Period |
Credit |
us-gaap:IncomeLossFromEquityMethodInvestments |
| 5 |
Dividends and Distributions received |
Concept (Monetary) |
For Period |
Debit |
us-gaap:EquityMethodInvestmentDividendsOrDistributions |
| 6 |
Currency translation adjustments |
Concept (Monetary) |
For Period |
Debit |
t:EquityMethodInvestmentCurrencyTranslationAdjustments |
| 7 |
Sale of America Movil Shares |
Concept (Monetary) |
For Period |
Debit |
us-gaap:EquityMethodInvestmentSoldCarryingAmount |
| 8 |
Return of advances to and investments in YP Holdings |
Concept (Monetary) |
For Period |
Debit |
us-gaap:ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital |
| 9 |
America Movil equity adjustments |
Concept (Monetary) |
For Period |
Debit |
t:EquityAdjustments |
| 10 |
Gain on Internacional exchange |
Concept (Monetary) |
For Period |
Credit |
t:GainOnEquityMethodInvestmentExchangedSharesExistingInvestee |
| 11 |
Other adjustments |
Concept (Monetary) |
For Period |
Debit |
t:EquityMethodInvestmentOther |
| 12 |
End of year |
Concept (Monetary) |
As Of |
Debit |
us-gaap:EquityMethodInvestments |