Name:	ec_ProvedDevelopedReserves
Namespace Prefix:	ec_
Data Type:	dtr-types:volumeItemType
Balance Type:	na
Period Type:	instant

The net quantity of proved reserves as of the balance sheet date. Proved oil reserves are the estimated quantities of crude oil and natural gas liquids which geological and engineering data demonstrate with reasonable certainty to be recoverable.

No definition available.

Name:	ec_ProvedOilAndGasReservesNet
Namespace Prefix:	ec_
Data Type:	dtr-types:volumeItemType
Balance Type:	na
Period Type:	instant

Additions to proved reserves that result from (1) extension of the proved acreage of previously discovered (old) reservoirs through additional drilling in periods after discovery and (2) discovery of new fields with proved reserves or of new reservoirs of proved reserves in old fields.

No definition available.

Name:	ec_ProvedReservesExtensionsDiscoveriesAndAdditions
Namespace Prefix:	ec_
Data Type:	dtr-types:volumeItemType
Balance Type:	na
Period Type:	duration

Changes in proved reserve estimates resulting from application of improved recovery techniques.

No definition available.

Name:	ec_ProvedReservesImprovedRecovery
Namespace Prefix:	ec_
Data Type:	dtr-types:volumeItemType
Balance Type:	na
Period Type:	duration

Production of proved reserves.

No definition available.

Name:	ec_ProvedReservesProduction
Namespace Prefix:	ec_
Data Type:	dtr-types:volumeItemType
Balance Type:	na
Period Type:	duration

Purchases of proved reserves.

No definition available.

Name:	ec_ProvedReservesPurchases
Namespace Prefix:	ec_
Data Type:	dtr-types:volumeItemType
Balance Type:	na
Period Type:	duration

Revisions represent changes in previous estimates of proved reserves, either upward or downward, resulting from new information (except for an increase in proved acreage) normally obtained from development drilling and production history or resulting from change in economic factors.

No definition available.

Name:	ec_ProvedReservesRevisionsOfPreviousEstimates
Namespace Prefix:	ec_
Data Type:	dtr-types:volumeItemType
Balance Type:	na
Period Type:	duration

Sales of proved reserves.

No definition available.

Name:	ec_ProvedReservesSales
Namespace Prefix:	ec_
Data Type:	dtr-types:volumeItemType
Balance Type:	na
Period Type:	duration

Net quantities of an enterprise's interests in proved undeveloped reserves of either crude oil (including condensate and natural gas liquids), natural gas, synthetic oil and gas, or other renewable natural resource that is intended to be upgraded into synthetic oil and gas as of the beginning and the end of the year. "Net" quantities of reserves include those relating to the enterprise's operating and nonoperating interests in properties. Quantities of reserves relating to royalty interests owned are included in "net" quantities if the necessary information is available to the enterprise. "Net" quantities does not include reserves relating to interests of others in properties owned by the enterprise. The unit of measure for reserve quantities is defined as "barrels" for oil and synthetic oil reserves or "cubic feet" or "cubic meters" for natural gas and synthetic gas reserves.

No definition available.

Name:	ec_ProvedUndevelopedReserve
Namespace Prefix:	ec_
Data Type:	dtr-types:volumeItemType
Balance Type:	na
Period Type:	instant

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

No definition available.