The applicable special tax rate.

No definition available.

Name:	ec_ApplicableSpecialTaxRate
Namespace Prefix:	ec_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The applicable stamp tax rate.

+ References

No definition available.

+ Details

Name:	ec_ApplicableStampTaxRate
Namespace Prefix:	ec_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the number of installments for payments of dividend to majority shareholders.

+ References

No definition available.

+ Details

Name:	ec_NumberOfInstallmentsForPaymentsOfDividendToMajorityShareholders
Namespace Prefix:	ec_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the number of installments for payments of dividend to minority shareholders.

+ References

No definition available.

+ Details

Name:	ec_NumberOfInstallmentsForPaymentsOfDividendToMinorityShareholders
Namespace Prefix:	ec_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of ownership interests held in the project.

+ References

No definition available.

+ Details

Name:	ec_PercentageOfOwnershipInterestHeld
Namespace Prefix:	ec_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents percentage of reduction in conversion cost for the purchase and sale of ADRs in the United States

+ References

No definition available.

+ Details

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

- Definition

Amount of reserve created for the purpose of financial sustainability and strategy execution.

+ References

No definition available.

+ Details

Name:	ec_SpecialReserveForFinancialSustainabilityAndStrategyExecution
Namespace Prefix:	ec_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

No definition available.

+ Details

Name:	ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of dividends recognised as distributions to owners of the parent. [Refer: Parent [member]]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 106
-Subparagraph d
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_106_d&doctype=Standard
-URIDate 2024-03-27

+ Details

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

- Definition

The amount, per share, of dividends recognised as distributions to owners.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 107
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_107&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_DividendsRecognisedAsDistributionsToOwnersPerShare
Namespace Prefix:	ifrs-full_
Data Type:	dtr-2022:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of income recognised in relation to government grants. [Refer: Government grants]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 20
-IssueDate 2024-01-01
-Paragraph 39
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=20&code=ifrs-tx-2024-en-r&anchor=para_39_b&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_RevenueFromGovernmentGrants
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	ifrs-full_SignificantInvestmentsInSubsidiariesAxis=ec_EcopetrolMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_SignificantInvestmentsInSubsidiariesAxis=ec_ReficarMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_NonadjustingEventsAfterReportingPeriodAxis=ec_ApplicationOfNewDecreeOnTaxesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_NonadjustingEventsAfterReportingPeriodAxis=ec_FuelPriceStabilizationFundMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_NonadjustingEventsAfterReportingPeriodAxis=ec_EcopetrolShareholdersGeneralAssemblyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_NonadjustingEventsAfterReportingPeriodAxis=ec_TemporaryReductionInConversionCostMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_NonadjustingEventsAfterReportingPeriodAxis=ec_InvestmentFrameworkAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Subsequent and relevant events (Details)							1 Months Ended	12 Months Ended
Subsequent and relevant events (Details)	Jun. 27, 2025 COP ($) installment	Apr. 29, 2025 COP ($) installment $ / shares	Apr. 14, 2025	Apr. 04, 2025 COP ($) installment $ / shares	Mar. 28, 2025 USD ($)	Feb. 14, 2025	Aug. 31, 2023 COP ($)	Dec. 31, 2024 COP ($)	Dec. 31, 2023 COP ($)	Mar. 28, 2025 COP ($)	Jan. 15, 2025
Subsequent and relevant events
Contribution from Ministry of Finance and Public Credit									$ 26,346,530,000,000
Ecopetrol
Subsequent and relevant events
Contribution from Ministry of Finance and Public Credit								$ 16,449,821,000,000	$ 2,876,149,000,000
Reficar
Subsequent and relevant events
Contribution from Ministry of Finance and Public Credit							$ 1,894,202,000,000
Application of new decree on taxes
Subsequent and relevant events
Applicable special tax rate						1.00%
Applicable stamp tax rate						1.00%
Fuel Price stabilization fund
Subsequent and relevant events
Contribution from Ministry of Finance and Public Credit					$ 2,229,051
Fuel Price stabilization fund \| Ecopetrol
Subsequent and relevant events
Contribution from Ministry of Finance and Public Credit					1,727,183
Fuel Price stabilization fund \| Reficar
Subsequent and relevant events
Contribution from Ministry of Finance and Public Credit					$ 501,868
Shareholders' General Assembly in Ecopetrol S.A.
Subsequent and relevant events
Dividends recognised as distributions to owners per share \| $ / shares		$ 214		$ 214
Number of installments for payments of dividend to minority shareholders \| installment		2		2
Number of installments for payments of dividend to majority shareholders \| installment	3	3		3
Dividends distributed	$ 3,286,344,378,880	$ 2,300,000,000,000		$ 2,200,000,000,000
Amount of special reserve										$ 16,635,492,094,077
Temporal reduction in the conversion cost of Ecopetrols ADR
Subsequent and relevant events
Percentage of reduction in conversion cost											50.00%
Investment framework agreement with AES Colombia & CIA SCA E.S.P.
Subsequent and relevant events
Percentage of ownership			49.00%