XML 102 R85.htm IDEA: XBRL DOCUMENT
v3.8.0.1

FINANCIAL RISK MANAGEMENT, Credit Risk, Cash and Financial Placement Maturities (Details) - ARS ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
--- | --- | --- | --- | ---
Maturities of financial assets [Abstract] |  |  |  |  |
Cash and cash equivalents |  | $ 2,652,803 | $ 1,555,089 | $ 872,537 | $ 789,420
Other financial assets |  | 1,680,130 | 198,380 |  |
Receivables | [1],[2] | 2,229,322 | 1,430,062 |  |
Without Specified Maturity [Member] |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |
Cash and cash equivalents |  | 1,993,355 | 724,725 |  |
Other financial assets |  | 0 | 0 |  |
Receivables | [1],[2] | 464 | 461 |  |
With Specified Maturity Over Due [Member] |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |
Cash and cash equivalents |  | 0 | 0 |  |
Other financial assets |  | 0 | 0 |  |
Receivables | [1],[2] | 165,735 | 304,386 |  |
With Specified Maturity Over Due [Member] | Until 12-31-2016 [Member] |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |
Cash and cash equivalents |  | 0 |  |  |
Other financial assets |  | 0 |  |  |
Receivables | [1],[2] | 2,025 |  |  |
With Specified Maturity Over Due [Member] | From 01-01-17 to 03-31-17 [Member] |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |
Cash and cash equivalents |  | 0 |  |  |
Other financial assets |  | 0 |  |  |
Receivables | [1],[2] | 137 |  |  |
With Specified Maturity Over Due [Member] | From 04-01-17 to 06-30-17 [Member] |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |
Cash and cash equivalents |  | 0 |  |  |
Other financial assets |  | 0 |  |  |
Receivables | [1],[2] | 1,786 |  |  |
With Specified Maturity Over Due [Member] | From 07-01-17 to 09-30-17 [Member] |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |
Cash and cash equivalents |  | 0 |  |  |
Other financial assets |  | 0 |  |  |
Receivables | [1],[2] | 12,690 |  |  |
With Specified Maturity Over Due [Member] | From 10-01-17 to 12-31-17 [Member] |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |
Cash and cash equivalents |  | 0 |  |  |
Other financial assets |  | 0 |  |  |
Receivables | [1],[2] | 149,097 |  |  |
With Specified Maturity Over Due [Member] | Until 12-31-2015 [Member] |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |
Cash and cash equivalents |  |  | 0 |  |
Other financial assets |  |  | 0 |  |
Receivables | [1],[2] |  | 37,023 |  |
With Specified Maturity Over Due [Member] | From 01-01-16 to 03-31-16 [Member] |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |
Cash and cash equivalents |  |  | 0 |  |
Other financial assets |  |  | 0 |  |
Receivables | [1],[2] |  | 2,274 |  |
With Specified Maturity Over Due [Member] | From 04-01-16 to 06-30-16 [Member] |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |
Cash and cash equivalents |  |  | 0 |  |
Other financial assets |  |  | 0 |  |
Receivables | [1],[2] |  | 8,224 |  |
With Specified Maturity Over Due [Member] | From 07-01-16 to 09-30-16 [Member] |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |
Cash and cash equivalents |  |  | 0 |  |
Other financial assets |  |  | 0 |  |
Receivables | [1],[2] |  | 21,209 |  |
With Specified Maturity Over Due [Member] | From 10-01-16 to 12-31-16 [Member] |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |
Cash and cash equivalents |  |  | 0 |  |
Other financial assets |  |  | 0 |  |
Receivables | [1],[2] |  | 235,656 |  |
With Specified Maturity Non-Due [Member] |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |
Cash and cash equivalents |  | 659,448 | 830,364 |  |
Other financial assets |  | 1,680,130 | 198,380 |  |
Receivables | [1],[2] | 2,063,123 | 1,125,215 |  |
With Specified Maturity Non-Due [Member] | From 01-01-18 to 03-31-18 [Member] |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |
Cash and cash equivalents |  | 659,448 |  |  |
Other financial assets |  | 400,639 |  |  |
Receivables | [1],[2] | 2,043,919 |  |  |
With Specified Maturity Non-Due [Member] | From 04-01-18 to 06-30-18 [Member] |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |
Cash and cash equivalents |  | 0 |  |  |
Other financial assets |  | 1,038,397 |  |  |
Receivables | [1],[2] | 2,508 |  |  |
With Specified Maturity Non-Due [Member] | From 07-01-18 to 09-30-18 [Member] |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |
Cash and cash equivalents |  | 0 |  |  |
Other financial assets |  | 225,020 |  |  |
Receivables | [1],[2] | 2,159 |  |  |
With Specified Maturity Non-Due [Member] | From 10-01-18 to 12-31-18 [Member] |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |
Cash and cash equivalents |  | 0 |  |  |
Other financial assets |  | 1,495 |  |  |
Receivables | [1],[2] | 2,600 |  |  |
With Specified Maturity Non-Due [Member] | From 01-01-17 to 03-31-17 [Member] |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |
Cash and cash equivalents |  |  | 830,364 |  |
Other financial assets |  |  | 13,877 |  |
Receivables | [1],[2] |  | 1,102,024 |  |
With Specified Maturity Non-Due [Member] | From 04-01-17 to 06-30-17 [Member] |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |
Cash and cash equivalents |  |  | 0 |  |
Other financial assets |  |  | 13,877 |  |
Receivables | [1],[2] |  | 5,704 |  |
With Specified Maturity Non-Due [Member] | From 07-01-17 to 09-30-17 [Member] |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |
Cash and cash equivalents |  |  | 0 |  |
Other financial assets |  |  | 13,877 |  |
Receivables | [1],[2] |  | 1,546 |  |
With Specified Maturity Non-Due [Member] | From 10-01-17 to 12-31-17 [Member] |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |
Cash and cash equivalents |  |  | 0 |  |
Other financial assets |  |  | 13,877 |  |
Receivables | [1],[2] |  | 1,501 |  |
With Specified Maturity Non-Due [Member] | During 2019 [member] |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |
Cash and cash equivalents |  | 0 |  |  |
Other financial assets |  | 5,714 |  |  |
Receivables | [1],[2] | 11,937 |  |  |
With Specified Maturity Non-Due [Member] | During 2020 [member] |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |
Cash and cash equivalents |  | 0 |  |  |
Other financial assets |  | 3,355 |  |  |
Receivables | [1],[2] | 0 |  |  |
With Specified Maturity Non-Due [Member] | During 2021 [member] |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |
Cash and cash equivalents |  | 0 |  |  |
Other financial assets |  | 3,044 |  |  |
Receivables | [1],[2] | 0 |  |  |
With Specified Maturity Non-Due [Member] | During 2022 [member] |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |
Cash and cash equivalents |  | 0 |  |  |
Other financial assets |  | 1,911 |  |  |
Receivables | [1],[2] | 0 |  |  |
With Specified Maturity Non-Due [Member] | From 2023 onwards [member] |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |
Cash and cash equivalents |  | 0 |  |  |
Other financial assets |  | 555 |  |  |
Receivables | [1],[2] | 0 |  |  |
With Specified Maturity Non-Due [Member] | During 2018 [Member] |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |
Cash and cash equivalents |  |  | 0 |  |
Other financial assets |  |  | 142,872 |  |
Receivables | [1],[2] |  | 11,893 |  |
With Specified Maturity Non-Due [Member] | During 2019 [Member] |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |
Cash and cash equivalents |  |  | 0 |  |
Other financial assets |  |  | 0 |  |
Receivables | [1],[2] |  | 2,547 |  |
With Specified Maturity Non-Due [Member] | During 2020 [Member] |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |
Cash and cash equivalents |  |  | 0 |  |
Other financial assets |  |  | 0 |  |
Receivables | [1],[2] |  | 0 |  |
With Specified Maturity Non-Due [Member] | During 2021 [Member] |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |
Cash and cash equivalents |  |  | 0 |  |
Other financial assets |  |  | 0 |  |
Receivables | [1],[2] |  | 0 |  |
With Specified Maturity Non-Due [Member] | From 2022 onwards [Member] |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |
Cash and cash equivalents |  |  | 0 |  |
Other financial assets |  |  | 0 |  |
Receivables | [1],[2] |  | 0 |  |
With Specified Maturity [Member] |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |
Cash and cash equivalents |  | 659,448 | 830,364 |  |
Other financial assets |  | 1,680,130 | 198,380 |  |
Receivables | [1],[2] | $ 2,228,858 | $ 1,429,601 |  |
[1] | Includes trade receivables and other receivables.
[2] | The total amount of the receivables without specified maturity is recorded in Non-current assets.

X
- Definition The amount of cash on hand and demand deposits, along with short-term, highly liquid investments that are readily convertible to known amounts of cash and that are subject to an insignificant risk of changes in value. [Refer: Cash; Cash equivalents] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2017-01-01 -Paragraph 45 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2017-03-01&anchor=para_45&doctype=Standard -URIDate 2017-03-09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2017-01-01 -Paragraph B13 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=12&date=2017-03-01&anchor=para_B13_a&doctype=Appendix&seq=2 -URIDate 2017-03-09 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 54 -Subparagraph i -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_54_i&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_CashAndCashEquivalents
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of financial assets that the entity does not separately disclose in the same statement or note. [Refer: Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 54 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_54_d&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_OtherFinancialAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of trade receivables and other receivables. [Refer: Trade receivables; Other receivables] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 54 -Subparagraph h -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_54_h&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 b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_78_b&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_TradeAndOtherReceivables
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Details
Name: | ifrs-full_PastDueStatusAxis=tgs_WithoutSpecifiedMaturityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_PastDueStatusAxis=tgs_WithSpecifiedMaturityOverDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=tgs_MaturitiesPriorYear2016Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=tgs_MaturityCurrentYear2017PeriodOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=tgs_MaturityCurrentYear2017PeriodTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=tgs_MaturityCurrentYear2017PeriodThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=tgs_MaturityCurrentYear2017PeriodFourMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=tgs_MaturitiesPriorYear2015Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=tgs_MaturityCurrentYear2016PeriodOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=tgs_MaturityCurrentYear2016PeriodTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=tgs_MaturityCurrentYear2016PeriodThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=tgs_MaturityCurrentYear2016PeriodFourMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_PastDueStatusAxis=tgs_WithSpecifiedMaturityNonDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=tgs_MaturityNextYear2018PeriodOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=tgs_MaturityNextYear2018PeriodTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=tgs_MaturityNextYear2018PeriodThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=tgs_MaturityNextYear2018PeriodFourMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=tgs_MaturityNextYear2017PeriodOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=tgs_MaturityNextYear2017PeriodTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=tgs_MaturityNextYear2017PeriodThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=tgs_MaturityNextYear2017PeriodFourMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanTwoYearsAndNotLaterThanThreeYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanThreeYearsAndNotLaterThanFourYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanFourYearsAndNotLaterThanFiveYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanFiveYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=tgs_LaterThanOneYearAndNotLaterThanTwoYears2016Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=tgs_LaterThanTwoYearsAndNotLaterThanThreeYears2016Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=tgs_LaterThanThreeYearsAndNotLaterThanFourYears2016Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=tgs_LaterThanFourYearsAndNotLaterThanFiveYears2016Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=tgs_LaterThanFiveYears2016Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_PastDueStatusAxis=tgs_WithSpecifiedMaturityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |