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COMMON STOCK AND DIVIDENDS (Tables) | 12 Months Ended
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Dec. 31, 2017
COMMON STOCK AND DIVIDENDS [Abstract] |
Common Stock | As of December 31, 2017, 2016 and 2015, TGS’ common stock was as follows:
Common Shares Class (Face value $ 1, 1 vote) | Amount of common stock, subscribed, issued, paid in, and authorized for public offer
Class “A” | 405,192,594
Class “B” | 389,302,689
| 794,495,283

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- Definition The disclosure of classes of share capital. [Refer: Share capital [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 79 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_79_a&doctype=Standard -URIDate 2017-03-09 + Details
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