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Exhibit 2. Consolidated companies, associates, and joint ventures - Interconexion Electrica S.A. ESP (Unaudited) (Details) - COP ($)
$ in Millions
 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Dec. 31, 2023
Dec. 31, 2022
Consolidated companies, associates, and joint ventures        
Assets $ 283,484,766   $ 280,141,090  
Liabilities 188,248,347   179,888,610  
Equity 95,236,419 $ 98,242,364 $ 100,252,480 $ 113,903,089
Profit (loss) $ 8,717,774 $ 14,471,587    
Interconexion Electrica S.A. E.S.P. | ATP Tower Holdings        
Consolidated companies, associates, and joint ventures        
Activity, associate Telecommunications transport      
Country/Domicile, associate United States of America      
Ownership Interest, associate 24.70%      
Assets $ 4,276,363      
Liabilities 2,823,125      
Equity 1,453,238      
Profit (loss) $ (68,415)      
Interconexion Electrica S.A. E.S.P. | Interligacao Eletrica do Madeira [Member]        
Consolidated companies, associates, and joint ventures        
Activity, joint venture Energy transport      
Country/Domicile, joint venture Brazil      
% of Ecopetrol's ownership 51.00%      
Assets $ 5,469,756      
Liabilities 2,292,356      
Equity 3,177,400      
Profit (loss) $ 196,142      
Interconexion Electrica S.A. E.S.P. | Interligacao Electrica Garanhuns        
Consolidated companies, associates, and joint ventures        
Activity, joint venture Energy transport      
Country/Domicile, joint venture Brazil      
% of Ecopetrol's ownership 51.00%      
Assets $ 1,157,915      
Liabilities 302,574      
Equity 855,341      
Profit (loss) $ 46,355      
Interconexion Electrica S.A. E.S.P. | Interligacao Electrica Paraguacu        
Consolidated companies, associates, and joint ventures        
Activity, joint venture Energy transport      
Country/Domicile, joint venture Brazil      
% of Ecopetrol's ownership 50.00%      
Assets $ 1,306,171      
Liabilities 415,300      
Equity 890,871      
Profit (loss) $ 61,069      
Interconexion Electrica S.A. E.S.P. | Interligacao Electrica Aimores        
Consolidated companies, associates, and joint ventures        
Activity, joint venture Energy transport      
Country/Domicile, joint venture Brazil      
% of Ecopetrol's ownership 50.00%      
Assets $ 831,490      
Liabilities 282,872      
Equity 548,618      
Profit (loss) $ 44,955      
Interconexion Electrica S.A. E.S.P. | Interligacao Eletrica Ivai        
Consolidated companies, associates, and joint ventures        
Activity, joint venture Energy transport      
Country/Domicile, joint venture Brazil      
% of Ecopetrol's ownership 50.00%      
Assets $ 3,508,464      
Liabilities 2,675,895      
Equity 832,569      
Profit (loss) $ 80,123      
Interconexion Electrica S.A. E.S.P. | Transmissora Alianca de Energia Eletrica        
Consolidated companies, associates, and joint ventures        
Activity, joint venture Energy transport      
Country/Domicile, joint venture Brazil      
% of Ecopetrol's ownership 14.88%      
Assets $ 13,606,292      
Liabilities 8,447,917      
Equity 5,158,375      
Profit (loss) $ 590,956      
Interconexion Electrica S.A. E.S.P. | Interconexion Electrica Colombia Panama-Panama        
Consolidated companies, associates, and joint ventures        
Activity, joint venture Energy transport      
Country/Domicile, joint venture Panama      
% of Ecopetrol's ownership 50.00%      
Assets $ 21,693      
Liabilities 3,534      
Equity 18,159      
Profit (loss) $ (7,430)      
Interconexion Electrica S.A. E.S.P. | Interconexion Electrica Colombia Panama-Colombia        
Consolidated companies, associates, and joint ventures        
Activity, joint venture Energy transport      
Country/Domicile, joint venture Colombia      
% of Ecopetrol's ownership 1.17%      
Assets $ 264      
Liabilities 1      
Equity 263      
Profit (loss) $ (2)      
Interconexion Electrica S.A. E.S.P. | Transnexa        
Consolidated companies, associates, and joint ventures        
Activity, joint venture Telecommunications transport      
Country/Domicile, joint venture Ecuador      
% of Ecopetrol's ownership 49.85%      
Interconexion Electrica S.A. E.S.P. | Derivex        
Consolidated companies, associates, and joint ventures        
Activity, joint venture Manage the negotiation system of operations on derivative financial instruments of electrical energy      
Country/Domicile, joint venture Colombia      
% of Ecopetrol's ownership 39.88%      
Assets $ 3,025      
Equity 3,025      
Profit (loss) $ (293)      
Interconexion Electrica S.A. E.S.P. | Parques de Rio        
Consolidated companies, associates, and joint ventures        
Activity, joint venture Roads      
Country/Domicile, joint venture Colombia      
% of Ecopetrol's ownership 33.00%      
Assets $ 49      
Equity 49      
Profit (loss) $ (19)      
Interconexion Electrica S.A. E.S.P. | Conexion Kimal Lo Aguirre S.A.        
Consolidated companies, associates, and joint ventures        
Activity, joint venture Energy transport      
Country/Domicile, joint venture Chile      
% of Ecopetrol's ownership 33.33%      
Assets $ 1,124,648      
Liabilities 702,382      
Equity 422,266      
Profit (loss) $ (2,283)      
Interconexion Electrica S.A. E.S.P. | Consorcio Electrico Yapay S.A        
Consolidated companies, associates, and joint ventures        
Activity, joint venture Electric power      
Country/Domicile, joint venture Peru      
% of Ecopetrol's ownership 50.00%      
Assets $ 245,054      
Liabilities 249,065      
Equity (4,011)      
Profit (loss) $ (2,927)      
Interconexion Electrica S.A. E.S.P. | Consorcio Transmantaro        
Consolidated companies, associates, and joint ventures        
Activity Electric power      
Country/Domicile Peru      
Ownership Interest 60.00%      
Assets $ 8,115,427      
Liabilities 6,368,687      
Equity 1,746,740      
Profit (loss) $ 195,072      
Interconexion Electrica S.A. E.S.P. | Interligacao Electrica Evrecy        
Consolidated companies, associates, and joint ventures        
Activity Electric power      
Country/Domicile Brazil      
Ownership Interest 35.82%      
Assets $ 368,486      
Liabilities 38,151      
Equity 330,335      
Profit (loss) $ (10,739)      
Interconexion Electrica S.A. E.S.P. | Fundo De Investimento Assis        
Consolidated companies, associates, and joint ventures        
Activity Trust - Special Purpose Entity      
Country/Domicile Brazil      
Ownership Interest 35.82%      
Assets $ 447,909      
Equity 447,909      
Profit (loss) $ 11,245      
Interconexion Electrica S.A. E.S.P. | Fundo de Investimento Barra Bonita Renda Fixa Referenciado        
Consolidated companies, associates, and joint ventures        
Activity Trust - Special Purpose Entity      
Country/Domicile Brazil      
Ownership Interest 35.82%      
Assets $ 36,782      
Equity 36,782      
Profit (loss) $ 1,449      
Interconexion Electrica S.A. E.S.P. | Fundo de Investimento Referenciado di Bandeirantes        
Consolidated companies, associates, and joint ventures        
Activity Trust - Special Purpose Entity      
Country/Domicile Brazil      
Ownership Interest 29.81%      
Assets $ 617,011      
Equity 617,011      
Profit (loss) $ 15,057      
Interconexion Electrica S.A. E.S.P. | Fundo de Investimento Xavantes Referenciado di        
Consolidated companies, associates, and joint ventures        
Activity Trust - Special Purpose Entity      
Country/Domicile Brazil      
Ownership Interest 24.15%      
Assets $ 802,638      
Equity 802,638      
Profit (loss) $ 32,583      
Interconexion Electrica S.A. E.S.P. | Interconexiones Viales        
Consolidated companies, associates, and joint ventures        
Activity Roads      
Country/Domicile Chile      
Ownership Interest 100.00%      
Assets $ 149      
Liabilities 35      
Equity 114      
Profit (loss) $ 53      
Interconexion Electrica S.A. E.S.P. | Interligacao Eletrica Aguapei        
Consolidated companies, associates, and joint ventures        
Activity Electric power      
Country/Domicile Brazil      
Ownership Interest 35.82%      
Assets $ 580,786      
Liabilities 85,893      
Equity 494,893      
Profit (loss) $ 16,961      
Interconexion Electrica S.A. E.S.P. | Interligacao Eletrica Biguacu        
Consolidated companies, associates, and joint ventures        
Activity Electric power      
Country/Domicile Brazil      
Ownership Interest 35.82%      
Assets $ 409,667      
Liabilities 58,995      
Equity 350,672      
Profit (loss) $ 30,923      
Interconexion Electrica S.A. E.S.P. | Interligacao Eletrica De Minas Gerais        
Consolidated companies, associates, and joint ventures        
Activity Electric power      
Country/Domicile Brazil      
Ownership Interest 35.82%      
Assets $ 450,953      
Liabilities 36,402      
Equity 414,551      
Profit (loss) $ 20,009      
Interconexion Electrica S.A. E.S.P. | Interligacao Eletrica Itapura        
Consolidated companies, associates, and joint ventures        
Activity Electric power      
Country/Domicile Brazil      
Ownership Interest 35.82%      
Assets $ 168,222      
Liabilities 18,524      
Equity 149,698      
Profit (loss) $ 6,301      
Interconexion Electrica S.A. E.S.P. | Interligacao Eletrica Itaquere        
Consolidated companies, associates, and joint ventures        
Activity Electric power      
Country/Domicile Brazil      
Ownership Interest 35.82%      
Assets $ 499,001      
Liabilities 56,129      
Equity 442,872      
Profit (loss) $ 27,671      
Interconexion Electrica S.A. E.S.P. | Interligacao Eletrica Itaunes        
Consolidated companies, associates, and joint ventures        
Activity Electric power      
Country/Domicile Brazil      
Ownership Interest 35.82%      
Assets $ 488,299      
Liabilities 62,556      
Equity 425,743      
Profit (loss) $ 31,705      
Interconexion Electrica S.A. E.S.P. | Interligacao Eletrica Norte E Nordeste        
Consolidated companies, associates, and joint ventures        
Activity Electric power      
Country/Domicile Brazil      
Ownership Interest 35.82%      
Assets $ 431,180      
Liabilities 112,065      
Equity 319,115      
Profit (loss) $ 19,060      
Interconexion Electrica S.A. E.S.P. | Interligacao Eletrica Pinheiros        
Consolidated companies, associates, and joint ventures        
Activity Electric power      
Country/Domicile Brazil      
Ownership Interest 35.82%      
Assets $ 59,381      
Liabilities 13,395      
Equity 45,986      
Profit (loss) $ 2,320      
Interconexion Electrica S.A. E.S.P. | Interligacao Eletrica Riacho Grande        
Consolidated companies, associates, and joint ventures        
Activity Electric power      
Country/Domicile Brazil      
Ownership Interest 35.82%      
Assets $ 233,166      
Liabilities 29,962      
Equity 203,204      
Profit (loss) $ 2,520      
Interconexion Electrica S.A. E.S.P. | Interligacao Eletrica Serra Do Japi        
Consolidated companies, associates, and joint ventures        
Activity Electric power      
Country/Domicile Brazil      
Ownership Interest 35.82%      
Assets $ 367,765      
Liabilities 42,364      
Equity 325,401      
Profit (loss) $ 23,735      
Interconexion Electrica S.A. E.S.P. | Interligacao Eletrica Sul        
Consolidated companies, associates, and joint ventures        
Activity Electric power      
Country/Domicile Brazil      
Ownership Interest 35.82%      
Assets $ 196,429      
Liabilities 23,781      
Equity 172,648      
Profit (loss) $ 7,785      
Interconexion Electrica S.A. E.S.P. | Interligacao Eletrica Tibagi        
Consolidated companies, associates, and joint ventures        
Activity Electric power      
Country/Domicile Brazil      
Ownership Interest 35.82%      
Assets $ 233,500      
Liabilities 21,736      
Equity 211,764      
Profit (loss) $ 14,815      
Interconexion Electrica S.A. E.S.P. | Internexa        
Consolidated companies, associates, and joint ventures        
Activity Information and communications technologies      
Country/Domicile Colombia      
Ownership Interest 99.60%      
Assets $ 580,946      
Liabilities 408,637      
Equity 172,309      
Profit (loss) $ 10,759      
Interconexion Electrica S.A. E.S.P. | Internexa Chile        
Consolidated companies, associates, and joint ventures        
Activity Information and communications technologies      
Country/Domicile Chile      
Ownership Interest 98.60%      
Assets $ 49,797      
Liabilities 35,641      
Equity 14,156      
Profit (loss) $ (1,463)      
Interconexion Electrica S.A. E.S.P. | Interligacao Eletrica JAGUAR 6 S.A.        
Consolidated companies, associates, and joint ventures        
Activity Electric power      
Country/Domicile Brazil      
Ownership Interest 35.82%      
Assets $ 177,972      
Liabilities 21,737      
Equity 156,235      
Profit (loss) $ 10,198      
Interconexion Electrica S.A. E.S.P. | Interligacao Eletrica JAGUAR 8 S.A        
Consolidated companies, associates, and joint ventures        
Activity Electric power      
Country/Domicile Brazil      
Ownership Interest 35.82%      
Assets $ 112,382      
Liabilities 11,914      
Equity 100,468      
Profit (loss) $ 1,891      
Interconexion Electrica S.A. E.S.P. | Interligacao Eletrica JAGUAR 9 S.A.        
Consolidated companies, associates, and joint ventures        
Activity Electric power      
Country/Domicile Brazil      
Ownership Interest 35.82%      
Assets $ 412,067      
Liabilities 38,984      
Equity 373,083      
Profit (loss) $ 26,073      
Interconexion Electrica S.A. E.S.P. | Internexa Participacoes        
Consolidated companies, associates, and joint ventures        
Activity Investment vehicle      
Country/Domicile Brazil      
Ownership Interest 99.60%      
Assets $ 1,755      
Liabilities 155      
Equity 1,600      
Profit (loss) $ 696      
Interconexion Electrica S.A. E.S.P. | Internexa Peru        
Consolidated companies, associates, and joint ventures        
Activity Information and communications technologies      
Country/Domicile Peru      
Ownership Interest 99.71%      
Assets $ 327,394      
Liabilities 272,272      
Equity 55,122      
Profit (loss) $ 6,504      
Interconexion Electrica S.A. E.S.P. | ISA Bolivia        
Consolidated companies, associates, and joint ventures        
Activity Electric power      
Country/Domicile Bolivia      
Ownership Interest 100.00%      
Assets $ 86,239      
Liabilities 8,561      
Equity 77,678      
Profit (loss) $ 5,044      
Interconexion Electrica S.A. E.S.P. | ISA Capital Do Brasil        
Consolidated companies, associates, and joint ventures        
Activity Investment vehicle      
Country/Domicile Brazil      
Ownership Interest 100.00%      
Assets $ 5,062,971      
Liabilities 148      
Equity 5,062,823      
Profit (loss) $ 390,749      
Interconexion Electrica S.A. E.S.P. | ISA CTEEP        
Consolidated companies, associates, and joint ventures        
Activity Electric power      
Country/Domicile Brazil      
Ownership Interest 35.82%      
Assets $ 27,794,304      
Liabilities 13,737,606      
Equity 14,056,698      
Profit (loss) $ 1,089,255      
Interconexion Electrica S.A. E.S.P. | ISA Interchile        
Consolidated companies, associates, and joint ventures        
Activity Electric power      
Country/Domicile Chile      
Ownership Interest 100.00%      
Assets $ 5,984,688      
Liabilities 4,561,883      
Equity 1,422,805      
Profit (loss) $ 27,924      
Interconexion Electrica S.A. E.S.P. | ISA Intercolombia        
Consolidated companies, associates, and joint ventures        
Activity Electric power      
Country/Domicile Colombia      
Ownership Interest 100.00%      
Assets $ 449,835      
Liabilities 335,018      
Equity 114,817      
Profit (loss) $ 28,843      
Interconexion Electrica S.A. E.S.P. | ISA Intervial Chile        
Consolidated companies, associates, and joint ventures        
Activity Roads      
Country/Domicile Chile      
Ownership Interest 100.00%      
Assets $ 4,510,022      
Liabilities 674,176      
Equity 3,835,846      
Profit (loss) $ 259,266      
Interconexion Electrica S.A. E.S.P. | ISA Intervial Colombia        
Consolidated companies, associates, and joint ventures        
Activity Roads      
Country/Domicile Colombia      
Ownership Interest 100.00%      
Assets $ 652      
Equity 652      
Profit (loss) $ 13      
Interconexion Electrica S.A. E.S.P. | ISA Inversiones Chile SpA        
Consolidated companies, associates, and joint ventures        
Activity Investment vehicle      
Country/Domicile Chile      
Ownership Interest 100.00%      
Assets $ 2,197,015      
Liabilities 349,286      
Equity 1,847,729      
Profit (loss) $ 29,407      
Interconexion Electrica S.A. E.S.P. | ISA Inversiones Chile Vias SpA        
Consolidated companies, associates, and joint ventures        
Activity Investment vehicle      
Country/Domicile Chile      
Ownership Interest 100.00%      
Assets $ 3,857,162      
Liabilities 12,724      
Equity 3,844,438      
Profit (loss) $ 259,144      
Interconexion Electrica S.A. E.S.P. | ISA Inversiones Costera Chile        
Consolidated companies, associates, and joint ventures        
Activity Investment vehicle      
Country/Domicile Chile      
Ownership Interest 100.00%      
Assets $ 75,543      
Liabilities 193,522      
Equity (117,979)      
Profit (loss) $ (1,220)      
Interconexion Electrica S.A. E.S.P. | ISA Inversiones Tolten        
Consolidated companies, associates, and joint ventures        
Activity Investment vehicle      
Country/Domicile Chile      
Ownership Interest 100.00%      
Assets $ 21      
Liabilities 1      
Equity 20      
Profit (loss) $ (7)      
Interconexion Electrica S.A. E.S.P. | ISA Investimentos E Participacoes        
Consolidated companies, associates, and joint ventures        
Activity Investment vehicle      
Country/Domicile Brazil      
Ownership Interest 100.00%      
Assets $ 946,234      
Liabilities 12,921      
Equity 933,313      
Profit (loss) $ 78,002      
Interconexion Electrica S.A. E.S.P. | ISA Peru        
Consolidated companies, associates, and joint ventures        
Activity Electric power      
Country/Domicile Peru      
Ownership Interest 99.98%      
Assets $ 979,638      
Liabilities 772,307      
Equity 207,331      
Profit (loss) $ 19,339      
Interconexion Electrica S.A. E.S.P. | ISA REP        
Consolidated companies, associates, and joint ventures        
Activity Electric power      
Country/Domicile Peru      
Ownership Interest 60.00%      
Assets $ 1,784,303      
Liabilities 1,312,250      
Equity 472,053      
Profit (loss) $ 149,430      
Interconexion Electrica S.A. E.S.P. | ISA Transelca        
Consolidated companies, associates, and joint ventures        
Activity Electric power      
Country/Domicile Colombia      
Ownership Interest 100.00%      
Assets $ 1,987,327      
Liabilities 1,163,142      
Equity 824,185      
Profit (loss) $ 108,748      
Interconexion Electrica S.A. E.S.P. | Linear Systems RE        
Consolidated companies, associates, and joint ventures        
Activity Other businesses      
Country/Domicile Bermudas      
Ownership Interest 100.00%      
Assets $ 228,231      
Liabilities 185,489      
Equity 42,742      
Profit (loss) $ 3,848      
Interconexion Electrica S.A. E.S.P. | Proyectos De Infraestructura Del Peru        
Consolidated companies, associates, and joint ventures        
Activity Electric power      
Country/Domicile Peru      
Ownership Interest 100.00%      
Assets $ 20,913      
Liabilities 998      
Equity 19,915      
Profit (loss) $ (686)      
Interconexion Electrica S.A. E.S.P. | Ruta Costera        
Consolidated companies, associates, and joint ventures        
Activity Roads      
Country/Domicile Colombia      
Ownership Interest 100.00%      
Assets $ 2,565,131      
Liabilities 2,385,936      
Equity 179,195      
Profit (loss) $ 6,183      
Interconexion Electrica S.A. E.S.P. | Ruta De La Araucania        
Consolidated companies, associates, and joint ventures        
Activity Roads      
Country/Domicile Chile      
Ownership Interest 100.00%      
Assets $ 597,983      
Liabilities 300,907      
Equity 297,076      
Profit (loss) $ 18,795      
Interconexion Electrica S.A. E.S.P. | Ruta De Los Rios        
Consolidated companies, associates, and joint ventures        
Activity Roads      
Country/Domicile Chile      
Ownership Interest 75.00%      
Assets $ 198,450      
Liabilities 130,250      
Equity 68,200      
Profit (loss) $ 8,929      
Interconexion Electrica S.A. E.S.P. | Ruta del Bosque        
Consolidated companies, associates, and joint ventures        
Activity Roads      
Country/Domicile Chile      
Ownership Interest 100.00%      
Assets $ 11,000      
Liabilities 1,363      
Equity 9,637      
Profit (loss) $ (1,445)      
Interconexion Electrica S.A. E.S.P. | Ruta del Loa        
Consolidated companies, associates, and joint ventures        
Activity Roads      
Country/Domicile Chile      
Ownership Interest 100.00%      
Assets $ 1,599,722      
Liabilities 1,249,225      
Equity 350,497      
Profit (loss) $ 35,157      
Interconexion Electrica S.A. E.S.P. | Ruta del Maipo        
Consolidated companies, associates, and joint ventures        
Activity Roads      
Country/Domicile Chile      
Ownership Interest 100.00%      
Assets $ 7,096,772      
Liabilities 4,402,331      
Equity 2,694,441      
Profit (loss) $ 199,754      
Interconexion Electrica S.A. E.S.P. | Ruta del Maule        
Consolidated companies, associates, and joint ventures        
Activity Roads      
Country/Domicile Panama      
Ownership Interest 100.00%      
Assets $ 25,865      
Liabilities 2,222      
Equity 23,643      
Profit (loss) $ (2,222)      
Interconexion Electrica S.A. E.S.P. | Sistemas Inteligentes en Red        
Consolidated companies, associates, and joint ventures        
Activity Other businesses      
Country/Domicile Colombia      
Ownership Interest 99.77%      
Assets $ 25,092      
Liabilities 12,286      
Equity 12,806      
Profit (loss) $ 1,439      
Interconexion Electrica S.A. E.S.P. | XM        
Consolidated companies, associates, and joint ventures        
Activity Electric power      
Country/Domicile Colombia      
Ownership Interest 99.73%      
Assets $ 450,179      
Liabilities 399,639      
Equity 50,540      
Profit (loss) $ 9,307      
Interconexion Electrica S.A. E.S.P. | INTERCONEXIONES DEL NORTE S.A.        
Consolidated companies, associates, and joint ventures        
Activity Electric power      
Country/Domicile Colombia      
Ownership Interest 100.00%      
Assets $ 65,453      
Liabilities 65,586      
Equity (133)      
Profit (loss) $ (281)