The cash inflow from sales of equity or debt instruments of other entities (other than receipts for those instruments considered to be cash equivalents and those held for dealing or trading purposes), classified as investing activities.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 7
-IssueDate 2016-01-13
-Paragraph 16
-Subparagraph d
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2016-03-30&anchor=para_16_d&doctype=Standard
-URIDate 2016-03-31

Name:	ifrs-full_OtherCashReceiptsFromSalesOfEquityOrDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Cash and Cash Equivalents - Summary of Proceeds Received from Sale of Ownership Interest in Associate (Detail) - CLP ($) $ in Thousands		12 Months Ended
	Feb. 07, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure Of Cash And Cash Equivalents [Line Items]
Loss of significant influence in Associate		$ 115,582,806	$ 133,206,429	$ 20,000,882
Electrogas S.A. [Member]
Disclosure Of Cash And Cash Equivalents [Line Items]
Amounts received for the sale of Electrogas S.A.	$ 115,582,806	$ 115,582,806