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Income taxes (Details) - CLP ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Income Taxes [Line Items] |  |
Current tax assets, current | $ 46,707,525 | $ 26,062,856
Refundable tax previous year |  |
Income Taxes [Line Items] |  |
Current tax assets, current | 2,566,562 | 2,114,087
Tax payments in advance |  |
Income Taxes [Line Items] |  |
Current tax assets, current | 34,996,163 | 15,510,712
Other credits [Member] |  |
Income Taxes [Line Items] |  |
Current tax assets, current | 599,765 | 953,366
Payment of absorbed profit provision [Member] |  |
Income Taxes [Line Items] |  |
Current tax assets, current | $ 8,545,035 | $ 7,484,691

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