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
Disclosure Of Cash And Cash Equivalents [Line Items]
Loss of significant influence in Associate		$ 115,582,806
Electrogas S.A. [Member]
Disclosure Of Cash And Cash Equivalents [Line Items]
Amounts received for the sale of Associates	$ 115,582,806	115,582,806
Loss of significant influence in Associate		$ 115,582,806

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 2019-01-01
-Paragraph 16
-Subparagraph d
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-URIDate 2019-03-27

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Balance Type:	debit
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