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SIGNIFICANT ACCOUNTING POLICIES - Revenue (Details) - ARS ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Disclosure of Detailed Information About Significant Accounting Policies [line items]
inventories on construction contracts recognized	$ 2,737	$ 136
Fixed Telephony and Data services
Disclosure of Detailed Information About Significant Accounting Policies [line items]
Revenue on construction contracts recognized	160
Cost of construction contracts	155
Deferred Revenues on construction contracts	322
inventories on construction contracts recognized	$ 537

X

- Definition

The amount of expenditure capitalised during the construction of non-current assets that are not yet available for use. [Refer: Non-current assets]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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X

- Definition

The amount of current inventories. [Refer: Inventories]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

The amount of revenue arising from construction contracts. Construction contracts are contracts specifically negotiated for the construction of an asset or a combination of assets that are closely interrelated or interdependent in terms of their design, technology and function or their ultimate purpose or use. [Refer: Revenue]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-IssueDate 2018-01-01
-Paragraph 112
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-URIDate 2018-03-16

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- Definition

The amount of construction contracts related to deferred revenues.

+ References

No definition available.

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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.

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