XML 100 R83.htm IDEA: XBRL DOCUMENT v3.8.0.1

FINANCIAL RISK MANAGEMENT, Credit Risk, Trade and Other Receivables (Details) - ARS ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017		Dec. 31, 2016		Dec. 31, 2015
Trade and other receivables [abstract]
Current trade receivables	$ 2,033,540		$ 1,246,142
Non-current trade receivables	3,055		8,122
Allowance for doubtful accounts	0	[1]	(19,703)	[1]	$ (1,389)
Revenues	12,246,664		7,402,172		4,226,569
Trade receivables	2,036,595		1,234,561
Natural Gas Transportation [Member] | MetroGas [Member]
Trade and other receivables [abstract]
Revenues	1,188,059		597,041		268,626
Trade receivables	209,426		70,319
Natural Gas Transportation [Member] | Camuzzi Gas Pampeana S.A. [Member]
Trade and other receivables [abstract]
Revenues	873,176		358,756		154,209
Trade receivables	153,163		51,908
Natural Gas Transportation [Member] | Gas Natural BAN S.A. ("BAN") [Member]
Trade and other receivables [abstract]
Revenues	627,356		268,043		110,259
Trade receivables	116,946		38,635
Natural Gas Transportation [Member] | CAMMESA [Member]
Trade and other receivables [abstract]
Revenues	545,023		335,751		0
Trade receivables	157,252		16,920
Natural Gas Transportation [Member] | Pampa Energia [Member]
Trade and other receivables [abstract]
Revenues	28,643		27,353		27,681
Trade receivables	882		5,943
Natural Gas Transportation [Member] | Camuzzi Gas del Sur S.A. [Member]
Trade and other receivables [abstract]
Revenues	192,200		58,056		36,614
Trade receivables	31,372		50,001
Liquids Production and Commercialization [Member] | Polisur [Member]
Trade and other receivables [abstract]
Revenues	2,226,179		1,949,460		1,298,152
Trade receivables	352,632		223,938
Liquids Production and Commercialization [Member] | Petredec [Member]
Trade and other receivables [abstract]
Revenues	910,633		0		254,061
Trade receivables	293,890		0
Liquids Production and Commercialization [Member] | Petroleo Brasileiro [Member]
Trade and other receivables [abstract]
Revenues	62,254		513,912		95,618
Trade receivables	0		57,335
Liquids Production and Commercialization [Member] | Petrobras Global [Member]
Trade and other receivables [abstract]
Revenues	0		0		44,058
Trade receivables	0		0
Liquids Production and Commercialization [Member] | Braskem Netherlands B.V. [Member]
Trade and other receivables [abstract]
Revenues	0		19,706		135,971
Trade receivables	0		0
Liquids Production and Commercialization [Member] | Trafigura Beheer B.V. [Member]
Trade and other receivables [abstract]
Revenues	0		0		159,911
Trade receivables	0		0
Liquids Production and Commercialization [Member] | Geogas Trading S.A. [Member]
Trade and other receivables [abstract]
Revenues	324,540		460,234		112,392
Trade receivables	54,014		125,303
Liquids Production and Commercialization [Member] | Shell Trading (US) Company [Member]
Trade and other receivables [abstract]
Revenues	892,086		0		$ 0
Trade receivables	$ 0		$ 0
[1] Corresponds to the best estimate made by TGS according to what is mentioned in note 5.b.

X

- Definition

The amount of an allowance account used to record impairments to financial assets due to credit losses. [Refer: Financial assets]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Expiry date 2018-01-01
-Name IFRS
-Number 7
-IssueDate 2017-01-01
-Paragraph 16
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-02&anchor=para_16&doctype=Standard&book=B
-URIDate 2017-03-09

+ Details

Name:	ifrs-full_AllowanceAccountForCreditLossesOfFinancialAssets
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

The amount of non-current trade receivables. [Refer: Trade receivables]

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-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_NoncurrentTradeReceivables
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The income arising in the course of an entity's ordinary activities. Income is increases in economic benefits during the accounting period in the form of inflows or enhancements of assets or decreases of liabilities that result in an increase in equity, other than those relating to contributions from equity participants.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 8
-IssueDate 2017-01-01
-Paragraph 28
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=8&date=2017-03-01&anchor=para_28_a&doctype=Standard
-URIDate 2017-03-09

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 8
-IssueDate 2017-01-01
-Paragraph 23
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=8&date=2017-03-01&anchor=para_23_a&doctype=Standard
-URIDate 2017-03-09

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 8
-IssueDate 2017-01-01
-Paragraph 32
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=8&date=2017-03-01&anchor=para_32&doctype=Standard
-URIDate 2017-03-09

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 8
-IssueDate 2017-01-01
-Paragraph 33
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=8&date=2017-03-01&anchor=para_33_a&doctype=Standard
-URIDate 2017-03-09

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 8
-IssueDate 2017-01-01
-Paragraph 34
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=8&date=2017-03-01&anchor=para_34&doctype=Standard
-URIDate 2017-03-09

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2017-01-01
-Paragraph 82
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_82_a&doctype=Standard
-URIDate 2017-03-09

Reference 7: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 1
-IssueDate 2017-01-01
-Paragraph 103
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_103&doctype=Standard
-URIDate 2017-03-09

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Note Expiry date 2018-01-01
-Name IAS
-Number 18
-IssueDate 2017-01-01
-Paragraph 35
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=18&date=2017-03-02&anchor=para_35_b&doctype=Standard&book=B
-URIDate 2017-03-09

Reference 9: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 1
-IssueDate 2017-01-01
-Paragraph 102
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_102&doctype=Standard
-URIDate 2017-03-09

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 12
-IssueDate 2017-01-01
-Paragraph B12
-Subparagraph b
-Clause v
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=12&date=2017-03-01&anchor=para_B12_b_v&doctype=Appendix&seq=2
-URIDate 2017-03-09

Reference 11: http://www.xbrl.org/2003/role/exampleRef
-Name IFRS
-Number 12
-IssueDate 2017-01-01
-Paragraph B10
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=12&date=2017-03-01&anchor=para_B10_b&doctype=Appendix&seq=2
-URIDate 2017-03-09

+ Details

Name:	ifrs-full_Revenue
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	ifrs-full_TradeAndOtherReceivablesAbstract
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount due from customers for goods and services sold.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-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_TradeReceivables
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The gross amount before allowance of current trade receivables.

+ References

No definition available.

+ Details

Name:	tgs_CurrentTradeReceivablesGross
Namespace Prefix:	tgs_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	ifrs-full_SegmentsAxis=tgs_NaturalGasTransportationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_MajorCustomersAxis=tgs_MetroGasMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_MajorCustomersAxis=tgs_CamuzziGasPampeanaSAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_MajorCustomersAxis=tgs_GasNaturalBANSABANMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_MajorCustomersAxis=tgs_CAMMESAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_MajorCustomersAxis=tgs_PampaEnergiaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_MajorCustomersAxis=tgs_CamuzziGasDelSurSAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_SegmentsAxis=tgs_ProductionAndCommercializationOfLiquidsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_MajorCustomersAxis=tgs_PolisurMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_MajorCustomersAxis=tgs_PetredecMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_MajorCustomersAxis=tgs_PetroleoBrasileiroMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_MajorCustomersAxis=tgs_PetrobrasGlobalMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_MajorCustomersAxis=tgs_BraskemNetherlandsBVMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_MajorCustomersAxis=tgs_TrafiguraBeheerBVMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_MajorCustomersAxis=tgs_GeogasTradingSAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_MajorCustomersAxis=tgs_ShellTradingUSCompanyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: