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Basis of Preparation (Tables) | 12 Months Ended
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Dec. 31, 2017
Text block1 [abstract] |
Estimated Effects Arising from Adoption of the Pronouncement | The estimated effects at January 1, 2018 arising from adoption of IFRS 9, resulted in an increase in the provision for doubtful accounts and a corresponding effect in Equity, as follows:
|  | Jan. 1, 2018
Customers and Traders; Transport of energy |  | 195
|  | 195

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- Definition The disclosure of the known or reasonably estimable information relevant to assessing the possible impact that the application of a new IFRS, that has been issued but is not yet effective, will have. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 8 -IssueDate 2017-01-01 -Paragraph 30 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=8&date=2017-03-01&anchor=para_30_b&doctype=Standard -URIDate 2017-03-09 + Details
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