v3.26.1
RISK MANAGEMENT - Credit quality of financial assets (excluding loan portfolio) - Other accounts receivable at amortized cost - Evaluated using general approach - Other accounts receivable and contract assets for corporate customers (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] | 12-month expected credit losses [member] | Financial assets at amortised cost, category [member] | Gross carrying amount [member]    
Disclosure of financial assets [line items]    
Financial assets 16,524,025 17,460,928
Other accounts receivable at amortized cost [member] | Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | Financial assets at amortised cost, category [member] | Gross carrying amount [member]    
Disclosure of financial assets [line items]    
Financial assets 144,086 130,745
Other accounts receivable at amortized cost [member] | Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | Financial assets at amortised cost, category [member] | Gross carrying amount [member]    
Disclosure of financial assets [line items]    
Financial assets 173,848 145,932
Other accounts receivable, general approach, other accounts receivables and contract assets for government and corporate customers | Financial assets at amortised cost, category [member] | Gross carrying amount [member]    
Disclosure of financial assets [line items]    
Financial assets 15,180,937 15,964,280
Other accounts receivable, general approach, other accounts receivables and contract assets for government and corporate customers | 12-month expected credit losses [member] | Financial assets at amortised cost, category [member] | Gross carrying amount [member]    
Disclosure of financial assets [line items]    
Financial assets 15,180,937 15,962,982
Other accounts receivable, general approach, other accounts receivables and contract assets for government and corporate customers | Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | Financial assets at amortised cost, category [member] | Gross carrying amount [member]    
Disclosure of financial assets [line items]    
Financial assets   1,298
Other accounts receivable, general approach, other accounts receivables and contract assets for government and corporate customers, sovereign [member] | Financial assets at amortised cost, category [member] | Gross carrying amount [member]    
Disclosure of financial assets [line items]    
Financial assets 15,180,937 15,962,982
Other accounts receivable, general approach, other accounts receivables and contract assets for government and corporate customers, sovereign [member] | 12-month expected credit losses [member] | Financial assets at amortised cost, category [member] | Gross carrying amount [member]    
Disclosure of financial assets [line items]    
Financial assets $ 15,180,937 15,962,982
Other accounts receivable, general approach, other accounts receivables and contract assets for government and corporate customers, corporate [member] | Financial assets at amortised cost, category [member] | Gross carrying amount [member]    
Disclosure of financial assets [line items]    
Financial assets   1,298
Other accounts receivable, general approach, other accounts receivables and contract assets for government and corporate customers, corporate [member] | Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | Financial assets at amortised cost, category [member] | Gross carrying amount [member]    
Disclosure of financial assets [line items]    
Financial assets   $ 1,298