XML 105 R84.htm IDEA: XBRL DOCUMENT v3.19.1

LOANS, 2014 and 2018 Notes (Details) $ in Thousands		12 Months Ended
		Dec. 31, 2018 ARS ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 ARS ($)
Issuance of notes [Abstract]
Repurchase of note	[1]	$ 1,328,029		$ 125,951
Cancellation and redemption of note		$ 4,796,243		$ 0
2014 EMTN Program [Member] | Top of Range [Member]
Issuance of notes [Abstract]
Maximum principal amount			$ 400,000,000
2014 Note [Member]
Issuance of notes [Abstract]
Principal amount			$ 255,451,506
Interest rate			9.625%
Frequency of interest payment		Semiannual, payable el May 14 and November 14 of each year	Semiannual, payable el May 14 and November 14 of each year
Guarantor		None	None
Percentage of cash flows discounted at an effective rate			10.126%
Repurchase of note			$ 86,511,165
Cancellation and redemption of note			$ 120,786,581
2014 Note [Member] | May 14, 2014 [Member]
Issuance of notes [Abstract]
Percentage of original principal amount			25.00%
2014 Note [Member] | May 14, 2018 [Member]
Issuance of notes [Abstract]
Percentage of original principal amount			25.00%
2014 Note [Member] | May 14, 2019 [Member]
Issuance of notes [Abstract]
Percentage of original principal amount			25.00%
2014 Note [Member] | May 14, 2020 [Member]
Issuance of notes [Abstract]
Percentage of original principal amount			25.00%
2018 Note [Member]
Issuance of notes [Abstract]
Principal amount			$ 500,000,000
Interest rate			6.75%
Issuance price			99.725%
Frequency of interest payment		Semiannual, payable el May 2 and November 2 of each year	Semiannual, payable el May 2 and November 2 of each year
Guarantor		None	None
Percentage of cash flows discounted at an effective rate			7.088%
2018 Note [Member] | May 2, 2025 [Member]
Issuance of notes [Abstract]
Percentage of original principal amount			100.00%
2018 Note [Member] | Top of Range [Member]
Issuance of notes [Abstract]
Maximum principal amount			$ 700,000,000
[1] For the years ended on December 31, 2018 and 2017, Ps. 101,968 and Ps. 66,075 respectively were cancelled through the offseting of debit balances maintained with the creditor (Pampa Energia).

X

- Definition

The interest rate on borrowings. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 7
-IssueDate 2018-01-01
-Paragraph 7
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2018-03-01&anchor=para_7&doctype=Standard
-URIDate 2018-03-16

+ Details

Name:	ifrs-full_BorrowingsInterestRate
Namespace Prefix:	ifrs-full_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The discount rate applied to cash flow projections for a cash-generating unit (group of units). [Refer: Cash-generating units [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 36
-IssueDate 2018-01-01
-Paragraph 134
-Subparagraph d
-Clause v
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=36&date=2018-03-01&anchor=para_134_d_v&doctype=Standard
-URIDate 2018-03-16

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 36
-IssueDate 2018-01-01
-Paragraph 134
-Subparagraph e
-Clause v
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=36&date=2018-03-01&anchor=para_134_e_v&doctype=Standard
-URIDate 2018-03-16

+ Details

Name:	ifrs-full_DescriptionOfDiscountRatesAppliedToCashFlowProjections
Namespace Prefix:	ifrs-full_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The nominal or face amount of a financial instrument, used to calculate payments made on that instrument.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2018-01-01
-Paragraph 112
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_112_c&doctype=Standard
-URIDate 2018-03-16

+ Details

Name:	ifrs-full_NotionalAmount
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The present value percentage of future cash flows for the face amount borrowed.

+ References

No definition available.

+ Details

Name:	tgs_BorrowingsPresentValueOfFaceAmountPercentage
Namespace Prefix:	tgs_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The description of the frequency of interest payment.

+ References

No definition available.

+ Details

Name:	tgs_DescriptionOfFrequencyOfInterestPayment
Namespace Prefix:	tgs_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Describes the guarantor for borrowings.

+ References

No definition available.

+ Details

Name:	tgs_DescriptionOfTheGuarantorForBorrowings
Namespace Prefix:	tgs_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Maximum borrowing capacity under the Euro Medium Term Note program.

+ References

No definition available.

+ Details

Name:	tgs_EuroMediumTermNoteMaximumBorrowingCapacity
Namespace Prefix:	tgs_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	tgs_IssuanceOfNotesAbstract
Namespace Prefix:	tgs_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Refers to percentage of borrowings on original principal amount.

+ References

No definition available.

+ Details

Name:	tgs_RepaymentOfBorrowingsOnOriginalPrincipalAmountPercentage
Namespace Prefix:	tgs_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The cash outflow to settle borrowings principal amount.

+ References

No definition available.

+ Details

Name:	tgs_RepaymentsOfBorrowingsPrincipal
Namespace Prefix:	tgs_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

The payment to redeem or settle outstanding borrowings.

+ References

No definition available.

+ Details

Name:	tgs_RepaymentsOfBorrowingsSettlementAmount
Namespace Prefix:	tgs_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=tgs_Two014EuroMediumTermNoteProgramMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=tgs_Two014NoteMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_TypesOfInterestRatesAxis=tgs_ScheduledPaymentDateOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_TypesOfInterestRatesAxis=tgs_ScheduledPaymentDateTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_TypesOfInterestRatesAxis=tgs_ScheduledPaymentDateThreeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_TypesOfInterestRatesAxis=tgs_ScheduledPaymentDateFourMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=tgs_Two018NoteMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_TypesOfInterestRatesAxis=tgs_ScheduledPaymentDateFiveMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: