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Income taxes (Details 2) - CLP ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Income Taxes [Line Items] |  |
Current tax liabilities, current | $ 35,066,792 | $ 21,251,222
Chilean income taxes |  |
Income Taxes [Line Items] |  |
Current tax liabilities, current | 21,256,053 | 12,798,390
Monthly provisional payments |  |
Income Taxes [Line Items] |  |
Current tax liabilities, current | 12,699,115 | 7,554,292
Chilean Unique Taxes [Member] |  |
Income Taxes [Line Items] |  |
Current tax liabilities, current | 66,617 | 64,561
Others |  |
Income Taxes [Line Items] |  |
Current tax liabilities, current | $ 1,045,007 | $ 833,979

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