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Reporting entity (Details)	Jun. 30, 2024
Reporting entity
Proportion of shares available for public trade held privately	11.51%
Proportion of shares held by majority share holders	88.49%

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- References

No definition available.

+ Details

Name:	ec_DisclosureOfReportingEntityAbstract
Namespace Prefix:	ec_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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- Definition

The percentage of shares which is publicly available to trade in stock exchange.

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No definition available.

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Name:	ec_ProportionOfSharesAvailableForPublicTrade
Namespace Prefix:	ec_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

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- Definition

The percentage of shares which are held by majority share holders not available for public trade.

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No definition available.

+ Details

Name:	ec_ProportionOfSharesHeldByMajorityShareHolders
Namespace Prefix:	ec_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant