Basis of Presentation of the Consolidated Financial Statements - Investments in Associates (Detail)	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023
BASIS OF PRESENTATION OF THE CONSOLIDATED FINANCIAL STATEMENTS
Percentage of voting power considered to be significant influence	20.00%
GNL Chile S.A.
BASIS OF PRESENTATION OF THE CONSOLIDATED FINANCIAL STATEMENTS
Indirect	33.33%	33.33%
Total	33.33%	33.33%
Energa Marina S.P.A.
BASIS OF PRESENTATION OF THE CONSOLIDATED FINANCIAL STATEMENTS
Indirect	25.00%	25.00%
Total	25.00%	25.00%
Enel X Way Chile S.P.A.
BASIS OF PRESENTATION OF THE CONSOLIDATED FINANCIAL STATEMENTS
Direct		49.00%
Total	49.00%	49.00%

The proportion of ownership interest in an associate attributable to the entity. [Refer: Total for all associates [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 27
-IssueDate 2024-01-01
-Paragraph 17
-Subparagraph b
-Clause iii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2024-en-r&anchor=para_17_b_iii&doctype=Standard
-URIDate 2024-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 27
-IssueDate 2024-01-01
-Paragraph 16
-Subparagraph b
-Clause iii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2024-en-r&anchor=para_16_b_iii&doctype=Standard
-URIDate 2024-03-27

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 12
-IssueDate 2024-01-01
-Paragraph 21
-Subparagraph a
-Clause iv
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2024-en-r&anchor=para_21_a_iv&doctype=Standard
-URIDate 2024-03-27

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Namespace Prefix:	ifrs-full_
Data Type:	dtr-2022:percentItemType
Balance Type:	na
Period Type:	duration