The amounts of loans payable, resulting from related party transactions, classified as current.

No definition available.

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

- Definition

The amounts of trade and other loans receivable, resulting from related party transactions, classified as current.

+ References

No definition available.

+ Details

Name:	ec_CurrentTradeAndOtherLoanReceivablesRelatedPartyTransactions
Namespace Prefix:	ec_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amounts of trade and other accounts payable, resulting from related party transactions, classified as current.

+ References

No definition available.

+ Details

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

- Definition

The amounts of trade and other receivables, resulting from related party transactions, classified as current.

+ References

No definition available.

+ Details

Name:	ec_CurrentTradeAndOtherReceivablesRelatedPartyTransactions
Namespace Prefix:	ec_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amounts of loans payable, resulting from related party transactions.

+ References

No definition available.

+ Details

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

- Definition

The amounts of trade and other loans receivable, resulting from related party transactions, classified as non-current.

+ References

No definition available.

+ Details

Name:	ec_NonCurrentTradeAndOtherLoanReceivablesRelatedPartyTransactions
Namespace Prefix:	ec_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amounts of trade and other payables, resulting from related party transactions, classified as non-current.

+ References

No definition available.

+ Details

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

- Definition

The amounts of trade and other receivables, resulting from related party transactions, classified as non-current.

+ References

No definition available.

+ Details

Name:	ec_NonCurrentTradeAndOtherReceivablesRelatedPartyTransactions
Namespace Prefix:	ec_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amounts of loans payable, resulting from related party transactions, classified as non-current.

+ References

No definition available.

+ Details

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

- Definition

The amount of liabilities Related parties that the entity does not separately disclose in the same statement or note. [Refer: Other Liabilities Related parties]

+ References

No definition available.

+ Details

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

- Definition

The amount of current liabilities Related parties that the entity does not separately disclose in the same statement or note. [Refer: Other Liabilities Related parties Current]

+ References

No definition available.

+ Details

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

- Definition

The amount of Non current liabilities Related parties that the entity does not separately disclose in the same statement or note. [Refer: Other Liabilities Related parties Non Current]

+ References

No definition available.

+ Details

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

- Definition

The amounts of trade and other loans receivable, resulting from related party transactions.

+ References

No definition available.

+ Details

Name:	ec_TradeAndOtherLoanReceivablesRelatedPartyTransactions
Namespace Prefix:	ec_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amounts of trade and other payables, resulting from related party transactions.

+ References

No definition available.

+ Details

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

- Definition

The amounts of trade and other receivables, resulting from related party transactions.

+ References

No definition available.

+ Details

Name:	ec_TradeAndOtherReceivablesRelatedPartyTransactions
Namespace Prefix:	ec_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- References

No definition available.

+ Details

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

- Details

Name:	ifrs-full_SignificantInvestmentsInAssociatesAxis=ec_GasesDelCaribeS.a.E.s.p.Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_CategoriesOfRelatedPartiesAxis=ifrs-full_AssociatesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_SignificantInvestmentsInAssociatesAxis=ec_ExtrucolS.a.Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_SignificantInvestmentsInAssociatesAxis=ec_E2EnergaEficienteS.a.E.s.p.Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_JointVenturesAxis=ec_EquionEnergyLimitedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_CategoriesOfRelatedPartiesAxis=ifrs-full_JointVenturesWhereEntityIsVenturerMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_JointVenturesAxis=ec_EcodieselColombiaSaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_JointVenturesAxis=ec_InterligaoEltricaDoMadeiraS.a.Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_JointVenturesAxis=ec_InterligacaoEletricaGaranhunsS.aMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_JointVenturesAxis=ec_InterligacaoEletricaParaguacuS.aMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_JointVenturesAxis=ec_InterligacaoEletricaAimoresS.aMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_JointVenturesAxis=ec_InterligacaoEletricaIvaiS.a.Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_JointVenturesAxis=ec_TransmissoraAlianaDeEnergiaEltricaS.a.Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_JointVenturesAxis=ec_ConsorcioElectricoYapayS.aMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_JointVenturesAxis=ec_ConexionKimalLoAguirreS.a.Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: