v3.26.1
RISK MANAGEMENT - Credit quality of financial assets (excluding loan portfolio) - Other accounts receivable at amortized cost - Evaluated using general approach - By segment (Details) - COP ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Disclosure of financial assets [line items]    
Financial assets $ 305,457,293 $ 304,853,883
Financial assets at amortised cost, category [member]    
Disclosure of financial assets [line items]    
Financial assets 243,432,271 251,981,889
Other accounts receivable at amortized cost [member] | Gross carrying amount [member]    
Disclosure of financial assets [line items]    
Financial assets 22,216,161 24,138,538
Other accounts receivable at amortized cost [member] | Financial assets at amortised cost, category [member] | Gross carrying amount [member]    
Disclosure of financial assets [line items]    
Financial assets 22,216,161 24,138,538
Other accounts receivable at amortized cost [member] | Financial assets at amortised cost, category [member] | Gross carrying amount [member] | 12-month expected credit losses [member]    
Disclosure of financial assets [line items]    
Financial assets 16,524,025 17,460,928
Other accounts receivable at amortized cost [member] | Financial assets at amortised cost, category [member] | Gross carrying amount [member] | Lifetime expected credit losses [member] | Financial instruments not credit-impaired [member]    
Disclosure of financial assets [line items]    
Financial assets 144,086 130,745
Other accounts receivable at amortized cost [member] | Financial assets at amortised cost, category [member] | Gross carrying amount [member] | Lifetime expected credit losses [member] | Financial instruments credit-impaired [member]    
Disclosure of financial assets [line items]    
Financial assets 173,848 145,932
Other accounts receivable, general approach, other accounts receivables related to gas, energy services, contributions and others | Financial assets at amortised cost, category [member] | Gross carrying amount [member]    
Disclosure of financial assets [line items]    
Financial assets 1,661,022 1,773,325
Other accounts receivable, general approach, other accounts receivables related to gas, energy services, contributions and others | Financial assets at amortised cost, category [member] | Gross carrying amount [member] | 12-month expected credit losses [member]    
Disclosure of financial assets [line items]    
Financial assets 1,343,088 1,497,946
Other accounts receivable, general approach, other accounts receivables related to gas, energy services, contributions and others | Financial assets at amortised cost, category [member] | Gross carrying amount [member] | Lifetime expected credit losses [member] | Financial instruments not credit-impaired [member]    
Disclosure of financial assets [line items]    
Financial assets 144,086 130,745
Other accounts receivable, general approach, other accounts receivables related to gas, energy services, contributions and others | Financial assets at amortised cost, category [member] | Gross carrying amount [member] | Lifetime expected credit losses [member] | Financial instruments credit-impaired [member]    
Disclosure of financial assets [line items]    
Financial assets 173,848 144,634
Other accounts receivable, general approach, other accounts receivables related to contributions [member] | Financial assets at amortised cost, category [member] | Gross carrying amount [member]    
Disclosure of financial assets [line items]    
Financial assets 322,655 308,014
Other accounts receivable, general approach, other accounts receivables related to contributions [member] | Financial assets at amortised cost, category [member] | Gross carrying amount [member] | 12-month expected credit losses [member]    
Disclosure of financial assets [line items]    
Financial assets 322,655 308,014
Other accounts receivable, general approach, other accounts receivables related to gas [member] | Financial assets at amortised cost, category [member] | Gross carrying amount [member]    
Disclosure of financial assets [line items]    
Financial assets 1,037,943 1,054,061
Other accounts receivable, general approach, other accounts receivables related to gas [member] | Financial assets at amortised cost, category [member] | Gross carrying amount [member] | 12-month expected credit losses [member]    
Disclosure of financial assets [line items]    
Financial assets 796,782 843,852
Other accounts receivable, general approach, other accounts receivables related to gas [member] | Financial assets at amortised cost, category [member] | Gross carrying amount [member] | Lifetime expected credit losses [member] | Financial instruments not credit-impaired [member]    
Disclosure of financial assets [line items]    
Financial assets 129,623 119,622
Other accounts receivable, general approach, other accounts receivables related to gas [member] | Financial assets at amortised cost, category [member] | Gross carrying amount [member] | Lifetime expected credit losses [member] | Financial instruments credit-impaired [member]    
Disclosure of financial assets [line items]    
Financial assets 111,538 90,587
Other accounts receivable, general approach, other accounts receivables related to energy services [member] | Financial assets at amortised cost, category [member] | Gross carrying amount [member]    
Disclosure of financial assets [line items]    
Financial assets 195,250 175,964
Other accounts receivable, general approach, other accounts receivables related to energy services [member] | Financial assets at amortised cost, category [member] | Gross carrying amount [member] | 12-month expected credit losses [member]    
Disclosure of financial assets [line items]    
Financial assets 118,477 110,794
Other accounts receivable, general approach, other accounts receivables related to energy services [member] | Financial assets at amortised cost, category [member] | Gross carrying amount [member] | Lifetime expected credit losses [member] | Financial instruments not credit-impaired [member]    
Disclosure of financial assets [line items]    
Financial assets 14,463 11,123
Other accounts receivable, general approach, other accounts receivables related to energy services [member] | Financial assets at amortised cost, category [member] | Gross carrying amount [member] | Lifetime expected credit losses [member] | Financial instruments credit-impaired [member]    
Disclosure of financial assets [line items]    
Financial assets 62,310 54,047
Other accounts receivable, general approach, other accounts receivables related to others [member] | Financial assets at amortised cost, category [member] | Gross carrying amount [member]    
Disclosure of financial assets [line items]    
Financial assets 105,174 235,286
Other accounts receivable, general approach, other accounts receivables related to others [member] | Financial assets at amortised cost, category [member] | Gross carrying amount [member] | 12-month expected credit losses [member]    
Disclosure of financial assets [line items]    
Financial assets $ 105,174 $ 235,286