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HEDGE ACCOUNTING - Financial instruments for hedging - liabilities (Details) - COP ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
Disclosure of financial liabilities [line items]    
Liabilities $ 217,566 $ 3,568
Forward contracts    
Disclosure of financial liabilities [line items]    
Liabilities 204,202 1,553
Forward contracts, Foreign currency to buy    
Disclosure of financial liabilities [line items]    
Liabilities 204,202 1,416
Forward contracts, Foreign currency to sell    
Disclosure of financial liabilities [line items]    
Liabilities   137
Swap    
Disclosure of financial liabilities [line items]    
Liabilities 13,364 2,015
Interest rate swap contract [member]    
Disclosure of financial liabilities [line items]    
Liabilities $ 13,364 $ 2,015