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BUSINESS DESCRIPTION (Details) - Extension | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2017 | Dec. 07, 2016 | Jul. 27, 2016
Business Overview [Abstract] |  |  |
Term of transportation license granted | 35 years |  |
Number of extension entitled | 1 |  |
Term of the extension | 10 years |  |
CIESA [Member] |  |  |
Major Shareholders [Abstract] |  |  |
Percentage of ownership | 51.00% |  |
Petrobras Argentina S.A. [Member] | CIESA [Member] |  |  |
Major Shareholders [Abstract] |  |  |
Percentage of ownership | 10.00% |  |
Trust [Member] | CIESA [Member] |  |  |
Major Shareholders [Abstract] |  |  |
Percentage of ownership | 40.00% |  |
GIP [Member] | CIESA [Member] |  |  |
Major Shareholders [Abstract] |  |  |
Percentage of ownership | 27.10% |  | 51.00%
GIP [Member] | CIESA [Member] | Transaction [Member] |  |  |
Major Shareholders [Abstract] |  |  |
Percentage of ownership |  |  | 55.00%
WST [Member] | CIESA [Member] |  |  |
Major Shareholders [Abstract] |  |  |
Percentage of ownership | 4.58% |  | 45.80%
PCT [Member] | CIESA [Member] |  |  |
Major Shareholders [Abstract] |  |  |
Percentage of ownership | 18.32% |  | 3.20%
PCT [Member] | CIESA [Member] | Transaction [Member] |  |  |
Major Shareholders [Abstract] |  |  |
Percentage of ownership |  |  | 45.00%
GIP and PCT [Member] | CIESA [Member] |  |  |
Major Shareholders [Abstract] |  |  |
Percentage of ownership | 50.00% |  |
GIP and PCT [Member] | CIESA [Member] | Exchange [Member] |  |  |
Major Shareholders [Abstract] |  |  |
Percentage of ownership |  | 40.00% |
GIP, WST and PCT [Member] | CIESA [Member] |  |  |
Major Shareholders [Abstract] |  |  |
Percentage of ownership | 50.00% |  |
Pampa Group [Member] | CIESA [Member] |  |  |
Major Shareholders [Abstract] |  |  |
Percentage of ownership | 50.00% |  |

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