Basis of Presentation of the Consolidated Financial Statements - Basis of consolidation and business combinations (Detail)	12 Months Ended
Dec. 31, 2024
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BASIS OF PRESENTATION OF THE CONSOLIDATED FINANCIAL STATEMENTS
Fair value of assets acquired and liabilities assumed, measurement period	1 year

Fair value of assets acquired and liabilities assumed measurement period.

No definition available.

Name:	enic_FairValueOfAssetsAcquiredAndLiabilitiesAssumedMeasurementPeriod
Namespace Prefix:	enic_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration