XML 96 R79.htm IDEA: XBRL DOCUMENT
v3.8.0.1

PROVISIONS (Details) - ARS ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Legal Claims and Others [Member] |  |  |  |  |  |  |
Reconciliation of changes in other provisions [abstract] |  |  |  |  |  |  |
Beginning balance |  | $ 221,433 |  | $ 150,586 |  | $ 150,347 |
Additions | [1] | 133,745 |  | 115,056 |  | 51,929 |
Uses |  | (153,220) |  | (27,986) |  | (45,963) |
Reversals |  | (5,609) | [2] | (16,223) | [3] | (5,727) | [3]
Ending balance |  | 196,349 |  | 221,433 |  | 150,586 |
Other Operating Expenses [Member] |  |  |  |  |  |  |
Reconciliation of changes in other provisions [abstract] |  |  |  |  |  |  |
Additions |  | 62,458 |  | 76,603 |  | 21,625 |
Reversals |  | (1,420) |  | (14,852) |  | (5,727) |
Financial Expenses [Member] |  |  |  |  |  |  |
Reconciliation of changes in other provisions [abstract] |  |  |  |  |  |  |
Additions |  | 71,287 |  | 38,453 |  | $ 30,304 |
Reversals |  | $ (4,189) |  | $ (1,371) |  |  |
[1] | Ps. 62,458, Ps. 76,603 and Ps. 21,625 are included in "Other operating expenses" and Ps. 71,287, Ps. 38,453 and Ps. 30,304 in "Financial expenses" for the years ended on December 31, 2017, 2016 and 2015, respectively.
[2] | Ps. 1,420, Ps. 14,852 and Ps. 5,727 are included in "Other operating expenses" and Ps. 4,189 and Ps. 1,371 in "Financial expenses" for the years 2017, 2016 and 2015.
[3] | The total amount is recorded in "Other operating income"

X
- Definition The amount of additional other provisions made. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 37 -IssueDate 2017-01-01 -Paragraph 84 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=37&date=2017-03-01&anchor=para_84_b&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_AdditionalProvisionsOtherProvisions
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of provisions other than provisions for employee benefits. [Refer: Provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 37 -IssueDate 2017-01-01 -Paragraph 84 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=37&date=2017-03-01&anchor=para_84_a&doctype=Standard -URIDate 2017-03-09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 78 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_78_d&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_OtherProvisions
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount used (ie incurrent and charged against the provision) for other provisions. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 37 -IssueDate 2017-01-01 -Paragraph 84 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=37&date=2017-03-01&anchor=para_84_c&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_ProvisionUsedOtherProvisions
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | ifrs-full_ReconciliationOfChangesInOtherProvisionsAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount reversed for unused other provisions. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 37 -IssueDate 2017-01-01 -Paragraph 84 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=37&date=2017-03-01&anchor=para_84_d&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_UnusedProvisionReversedOtherProvisions
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | ifrs-full_ClassesOfProvisionsAxis=tgs_LegalClaimsAndOthersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfProvisionsAxis=tgs_OtherOperatingExpensesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfProvisionsAxis=tgs_FinancialExpensesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |