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Investments in associates and joint ventures - Reconciliation of equity (Details) - COP ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Investments in associates and joint ventures
Equity of the joint venture	$ 6,073,255	$ 5,875,015
Interligao Eltrica do Madeira
Investments in associates and joint ventures
Equity of the joint venture	$ 3,119,012	$ 3,160,818
% of Ecopetrol's ownership	51.00%	51.00%
Ecopetrol's ownership	$ 1,590,696	$ 1,612,017
Carrying amount of the investment	1,590,696	1,612,017
Transmissora Aliana de Energia Eltrica
Investments in associates and joint ventures
Equity of the joint venture	$ 4,942,790	$ 5,273,100
% of Ecopetrol's ownership	14.88%	14.88%
Ecopetrol's ownership	$ 735,487	$ 784,637
Additional value of the investment	142,820	177,988
Carrying amount of the investment	878,307	962,625
Equion Energa Limited
Investments in associates and joint ventures
Equity of the joint venture	$ 1,597,163	$ 1,329,394
% of Ecopetrol's ownership	51.00%	51.00%
Ecopetrol's ownership	$ 814,553	$ 677,991
Additional value of the investment	375,694	375,694
Impairment	(392,809)	(408,183)
Unrealized gain	(11,968)	(16,267)
Carrying amount of the investment	$ 785,470	$ 629,235

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The amount accumulated of additional investment in joint ventures as on the date.

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The portion of entity's ownership interest in joint venture's equity.

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The amount of unrealized gain in joint venture.

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The amount of investments in joint ventures in an entity's separate financial statements. [Refer: Total for all joint ventures [member]]

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The amount of investments in joint ventures accounted for using the equity method. [Refer: Total for all joint ventures [member]; Investments accounted for using equity method]

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The proportion of ownership interest in a joint venture attributable to the entity. [Refer: Total for all joint ventures [member]]

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The amount recognised as an increase of the carrying amount of an asset or cash-generating unit to its recoverable amount when an impairment loss had been previously recognised. [Refer: Impairment loss]

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