Risk management - Financial assets and liabilities denominated in foreign currency (Details) $ in Millions	12 Months Ended
Dec. 31, 2023 COP ($)
Risk management
Scenario / variation in the exchange rate	1.00%
variation in the exchange rate	5.00%
USD$ Million
Risk management
variation in the exchange rate	5.00%
Currency risk
Risk management
One Percent variations in exchange rate, Effect on income before income taxes	$ 34,326
One percent variations in exchange rate, effect on other comprehensive income	631,972
Five Percent variations in exchange rate, Effect on income before income taxes	171,630
Five Percent variations in exchange rate, effect on other comprehensive income	$ 3,159,860

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Amount of change in comprehensive income due to 5% change in exchange rate.

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Amount of change in income before income taxes due to 5% change in exchange rate.

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The percentage of maximum investment in terms of cash provided by entity in portfolio, current.

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The percentage of maximum investment in terms of cash provided by entity in portfolio, non current.

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Amount of change in income before income taxes due to 1% change in exchange rate.

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Amount of change in comprehensive income due to 1% change in exchange rate.

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