SIGNIFICANT ACCOUNTING POLICIES, Regulatory Framework (Details)	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Regulatory framework [Abstract]
Inflation rate	94.79%	50.94%	36.14%

The quantitative measure of the rate at which the average price level of a basket of selected goods and services in an economy increases over a period of time.

No definition available.

Name:	tgs_InflationRatePercentage
Namespace Prefix:	tgs_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration