v3.26.1
Risk management - Schedule of Detailed Information About Hedging Instruments Explanatory (Details) - Currency swap contract - COP ($)
$ in Billions
Dec. 31, 2025
Dec. 31, 2024
Intervial Chile    
Risk management    
Hedging instrument assets $ 37 $ 36
ISA CTEP    
Risk management    
Hedging instrument assets   $ 223
Hedging instrument liabilities $ (2)