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SIGNIFICANT ACCOUNTING POLICIES - Interests in Joint Operations (Details)	12 Months Ended
	Dec. 31, 2018
UTE
Interests in Joint Operations
Bid term of data transmission services for Single Provincial Data Communication Network	24 months
UTE Ertach - Cablevision
Interests in Joint Operations
Ownership interest in joint venture (in percentage)	50.00%

X

- 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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Namespace Prefix:	ifrs-full_
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X

- Definition

The proportion of ownership interest in a joint operation attributable to the entity. [Refer: Joint operations [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 12
-IssueDate 2018-01-01
-Paragraph 21
-Subparagraph a
-Clause iv
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=12&date=2018-03-01&anchor=para_21_a_iv&doctype=Standard
-URIDate 2018-03-16

+ Details

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X

- Definition

The bid term of data transmission services for the Single Provincial Data Communication Network.

+ References

No definition available.

+ Details

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- Details

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X

- Details

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