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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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- Definition The amount of investments in joint ventures in an entity's separate financial statements. [Refer: Total for all joint ventures [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2024-01-01 -Paragraph 10 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2024-en-r&anchor=para_10&doctype=Standard -URIDate 2024-03-27 + Details
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