v3.26.1
Investments in associates and joint ventures - Composition and movements (Details) - COP ($)
$ in Billions
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Joint ventures        
Investments in joint ventures $ 5,585 $ 6,073    
Associates        
Investments in associates 2,463 2,579    
Total investments in subsidiaries, joint ventures and associates 8,048 8,652 $ 8,419 $ 9,497
Cost        
Joint ventures        
Investments in joint ventures 5,987 6,475    
Associates        
Investments in associates 2,472 2,588    
Accumulated impairment        
Associates        
Investments in associates (9) (9)    
Gases del Caribe S.A. E.S.P. | Cost        
Associates        
Investments in associates 1,518 1,529    
ATP Tower Holdings | Cost        
Associates        
Investments in associates 655 756    
Gas Natural del Oriente S.A. E.S.P. | Cost        
Associates        
Investments in associates 153 155    
Gases de la Guajira S.A. E.S.P. | Cost        
Associates        
Investments in associates 72 71    
E2 Energia Eficiente S.A. E.S.P. | Cost        
Associates        
Investments in associates 33 32    
Extrucol S.A. | Cost        
Associates        
Investments in associates 29 32    
Serviport S.A. | Cost        
Associates        
Investments in associates 9 9    
Sociedad Portuaria Olefinas y Derivados S.A. | Cost        
Associates        
Investments in associates 3 4    
Interligao Eltrica do Madeira S.A. | Cost        
Joint ventures        
Investments in joint ventures 1,658 1,698    
Transmissora Aliana de Energia Eltrica S.A. | Cost        
Joint ventures        
Investments in joint ventures 1,434 1,514    
Equion Energa Limited        
Joint ventures        
Investments in joint ventures 1,389 1,597    
Equion Energa Limited | Cost        
Joint ventures        
Investments in joint ventures 1,077 1,178    
Equion Energa Limited | Accumulated impairment        
Joint ventures        
Investments in joint ventures (393) (393)    
Interligao Eltrica Iva S.A. | Cost        
Joint ventures        
Investments in joint ventures 473 488    
Interligao Eltrica Garanhuns S.A | Cost        
Joint ventures        
Investments in joint ventures 466 479    
Interligao Eltrica Paraguau S.A | Cost        
Joint ventures        
Investments in joint ventures 347 515    
Interligao Eltrica Aimors S.A. | Cost        
Joint ventures        
Investments in joint ventures 235 323    
Conexion Kimal Lo Aguirre S.A. | Cost        
Joint ventures        
Investments in joint ventures 164 163    
Ecodiesel Colombia S.A. | Cost        
Joint ventures        
Investments in joint ventures 83 69    
Consorcio Elctrico Yapay S.A. | Cost        
Joint ventures        
Investments in joint ventures 25 24    
Transnexa S.A. E.M.A. | Cost        
Joint ventures        
Investments in joint ventures 9 9    
Transnexa S.A. E.M.A. | Accumulated impairment        
Joint ventures        
Investments in joint ventures (9) (9)    
PA Energa para la paz | Cost        
Joint ventures        
Investments in joint ventures 9 9    
Interconexion Electrica Colombia Panama S.A. | Cost        
Joint ventures        
Investments in joint ventures 6 5    
Derivex S.A. | Cost        
Joint ventures        
Investments in joint ventures $ 1 $ 1