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2. Presentation of Financial Statements and Summary of Significant Accounting Policies (Details)	12 Months Ended
	Dec. 31, 2017
Oxiteno Mexico
DisclosureOfForeignSubsidiariesLineItems [Line Items]
Functional currency	Mexican Peso
Location	Mexico
Oxiteno Servicios Corporativos
DisclosureOfForeignSubsidiariesLineItems [Line Items]
Functional currency	Mexican Peso
Location	Mexico
Oxiteno Servicios Industriales
DisclosureOfForeignSubsidiariesLineItems [Line Items]
Functional currency	Mexican Peso
Location	Mexico
Oxiteno USA
DisclosureOfForeignSubsidiariesLineItems [Line Items]
Functional currency	U.S. Dollar
Location	United States
Oxiteno Andina
DisclosureOfForeignSubsidiariesLineItems [Line Items]
Functional currency	Bolivar
Location	Venezuela
Oxiteno Uruguay
DisclosureOfForeignSubsidiariesLineItems [Line Items]
Functional currency	U.S. Dollar
Location	Uruguay

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 21
-IssueDate 2016-01-13
-Paragraph 53
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-URIDate 2016-03-31

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 21
-IssueDate 2016-01-13
-Paragraph 57
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=21&date=2016-03-30&anchor=para_57_c&doctype=Standard
-URIDate 2016-03-31

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