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REGULATORY FRAMEWORK - Spectrum (Details) $ in Millions |  |  |  |  |  |  |  | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 06, 2018 | Jan. 04, 2018 USD ($) item | Jul. 05, 2017 USD ($) area item | May 12, 2017 item | Mar. 07, 2017 item | Feb. 20, 2017 item | Jan. 14, 2015 | Dec. 31, 2018 item | Feb. 27, 2018 USD ($) | Dec. 31, 2017 USD ($)
Regulatory framework |  |  |  |  |  |  |  |  |  |
Usage period of the auctioned frequency bands |  |  |  |  |  |  |  | 15 years |  |
Spectrum allocation period |  |  | 15 years |  |  |  |  |  |  |
Number of areas free of interference in spectrum allocation | area |  |  | 13 |  |  |  |  |  |  |
Number of provincial capitals in spectrum allocation |  |  | 18 |  |  |  |  |  |  |
Amount payable for spectrum allocation | $ |  |  | $ 55.9 |  |  |  |  |  |  |
Penalty percentage on spectrum allocation |  |  | 15 |  |  |  |  |  |  |
License period for Cellular Mobile Telephony and Internet Access and Data Transmission Services | 5 years |  |  |  |  |  |  |  |  |
Number of licensees for subscription television services |  |  |  |  |  |  |  | 2 |  |
Term non-satellite audiovisual communication services spectrum |  |  |  |  |  |  | 15 years |  |  |
1033-E/17 | Minimum |  |  |  |  |  |  |  |  |  |
Regulatory framework |  |  |  |  |  |  |  |  |  |
Frequency band awarded, one (in MHz) |  |  |  |  |  | 905 |  |  |  |
Frequency band awarded, two (in MHz) |  |  |  |  |  | 950 |  |  |  |
1033-E/17 | Maximum |  |  |  |  |  |  |  |  |  |
Regulatory framework |  |  |  |  |  |  |  |  |  |
Frequency band awarded, one (in MHz) |  |  |  |  |  | 915 |  |  |  |
Frequency band awarded, two (in MHz) |  |  |  |  |  | 960 |  |  |  |
1034-E/17 | Minimum |  |  |  |  |  |  |  |  |  |
Regulatory framework |  |  |  |  |  |  |  |  |  |
Frequency band awarded, one (in MHz) |  |  |  |  |  | 2,500 |  |  |  |
1034-E/17 | Maximum |  |  |  |  |  |  |  |  |  |
Regulatory framework |  |  |  |  |  |  |  |  |  |
Frequency band awarded, one (in MHz) |  |  |  |  |  | 2,690 |  |  |  |
1299-E/17 |  |  |  |  |  |  |  |  |  |
Regulatory framework |  |  |  |  |  |  |  |  |  |
Migration period |  |  |  |  | 2 years |  |  |  |  |
1299-E/17 | Minimum |  |  |  |  |  |  |  |  |  |
Regulatory framework |  |  |  |  |  |  |  |  |  |
Frequency band awarded, one (in MHz) |  |  |  |  | 2,550 |  |  |  |  |
Frequency band awarded, two (in MHz) |  |  |  |  | (2,670) |  |  |  |  |
1299-E/17 | Maximum |  |  |  |  |  |  |  |  |  |
Regulatory framework |  |  |  |  |  |  |  |  |  |
Frequency band awarded, one (in MHz) |  |  |  |  | 2,560 |  |  |  |  |
Frequency band awarded, two (in MHz) |  |  |  |  | 2,680 |  |  |  |  |
3687-E/17 | Minimum |  |  |  |  |  |  |  |  |  |
Regulatory framework |  |  |  |  |  |  |  |  |  |
Frequency band awarded, one (in MHz) |  |  |  | 2,500 |  |  |  |  |  |
3687-E/17 | Maximum |  |  |  |  |  |  |  |  |  |
Regulatory framework |  |  |  |  |  |  |  |  |  |
Frequency band awarded, one (in MHz) |  |  |  | 2,690 |  |  |  |  |  |
Nucleo |  |  |  |  |  |  |  |  |  |
Regulatory framework |  |  |  |  |  |  |  |  |  |
Deposit to be paid | $ |  |  |  |  |  |  |  |  |  | $ 15.0
Number of sub-bands awarded |  | 2 |  |  |  |  |  |  |  |
Consideration paid for each sub-bands | $ |  | $ 12.0 |  |  |  |  |  |  |  |
Auction price cancellation | $ |  |  |  |  |  |  |  |  | $ 9.0 |

X
- Definition The amount to be paid on demand for spectrum allocation. + References No definition available. + Details
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X
- Definition Represents the period of usage for the auctioned frequency bands awarded, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Includes, but not limited to, weeks in a year or quarter. + References No definition available. + Details
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- Definition The cancellation amount of the sub-band auction paid. + References No definition available. + Details
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- Definition The amount to be paid as deposit to acquire license on the entity getting prequalified. + References No definition available. + Details
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Balance Type: | credit
Period Type: | instant

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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- Definition Represents the first frequency band awarded to the company by the SC. + References No definition available. + Details
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- Definition Represents the second frequency band awarded to the company by the SC. + References No definition available. + Details
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- Definition The amount of consideration for each sub-band paid for acquisition of licenses. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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- Definition The number of areas that are free of interference in spectrum allocation. + References No definition available. + Details
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Namespace Prefix: | teo_
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- Definition The number of licensees providing subscription television services. + References No definition available. + Details
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- Definition The number of provincial capitals covered in spectrum allocation. + References No definition available. + Details
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Namespace Prefix: | teo_
Data Type: | xbrli:integerItemType
Balance Type: | na
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- Definition The number of sub-bands awarded under the license acquisitions. + References No definition available. + Details
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Namespace Prefix: | teo_
Data Type: | xbrli:integerItemType
Balance Type: | na
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X
- Definition The percentage of penalty on spectrum value. + References No definition available. + Details
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Namespace Prefix: | teo_
Data Type: | xbrli:pureItemType
Balance Type: | na
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- Definition The period for migration of users from pre-existing services. + References No definition available. + Details
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Namespace Prefix: | teo_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The period granted for spectrum allocation. + References No definition available. + Details
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Namespace Prefix: | teo_
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Balance Type: | na
Period Type: | duration

X
- Definition The period grated for license of Cellular Mobile Telephony and Internet Access and Data Transmission Services. + References No definition available. + Details
Name: | teo_PeriodOfLicenseForCellularMobileTelephonyAndInternetAccessAndDataTransmissionServices
Namespace Prefix: | teo_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The term of non satellite audiovisual communication services spectrum. + References No definition available. + Details
Name: | teo_TermOfNonSatelliteAudiovisualCommunicationServicesSpectrum
Namespace Prefix: | teo_
Data Type: | xbrli:durationItemType
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Period Type: | duration

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- Details
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