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Contractual Commitments - Contractual Commitments - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2017 ARS ($)
Disclosure of geographical areas [abstract]
Obligation with third parties to buy goods and services	$ 54,466
Termination of investment and expense commitments	$ 228,860

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- References

No definition available.

+ Details

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- Definition

The cash outflow to suppliers for goods and services.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 7
-IssueDate 2017-01-01
-Paragraph 14
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2017-03-01&anchor=para_14_c&doctype=Standard
-URIDate 2017-03-09

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- Definition

The amount of expense in relation to termination benefits. Termination benefits are employee benefits provided in exchange for the termination of an employee's employment as a result of either: (a) an entity's decision to terminate an employee's employment before the normal retirement date; or (b) an employee's decision to accept an offer of benefits in exchange for the termination of employment. [Refer: Employee benefits expense]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 19
-IssueDate 2017-01-01
-Paragraph 171
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=19&date=2017-03-01&anchor=para_171&doctype=Standard
-URIDate 2017-03-09

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