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Investment Portfolio - Government and Corporate Securities - Summary of Investments In Argentine And Other Governments And Corporate Securities (Details) - ARS ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
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Government Securities [Abstract] |  |
Government debt instruments held | $ 683,599,770 | $ 369,408,733
Investment Funds [Abstract] |  |
Investment Funds Equity | 3,926,704 | 3,710,885
Listed Securities [Member] |  |
Corporate Securities [Abstract] |  |
Corporate debt instruments held | 60,468 | 70,288
Unlisted Securities [Member] |  |
Corporate Securities [Abstract] |  |
Corporate debt instruments held | 3,722,935 | 2,649,764
Pesos [Member] |  |
Government Securities [Abstract] |  |
Government debt instruments held | 677,686,030 | 366,256,274
Foreign Currency [Member] |  |
Government Securities [Abstract] |  |
Government debt instruments held | 5,913,740 | 3,152,459
Argentine Government bonds [Member] | Pesos [Member] |  |
Government Securities [Abstract] |  |
Government debt instruments held | 156,496,037 | 128,559,737
Argentine Government bonds [Member] | Foreign Currency [Member] |  |
Government Securities [Abstract] |  |
Government debt instruments held | 3,788,200 | 3,152,459
Argentine Treasury bills [Member] | Pesos [Member] |  |
Government Securities [Abstract] |  |
Government debt instruments held | 37,679,304 | 27,917,365
Liquidity Bills issued by the BCRA [Member] | Pesos [Member] |  |
Government Securities [Abstract] |  |
Government debt instruments held | 483,510,689 | 209,779,172
Liquidity Bills issued by the BCRA [Member] | Foreign Currency [Member] |  |
Government Securities [Abstract] |  |
Government debt instruments held | 2,125,540 | 0
Trading equity securities [member] | Listed Securities [Member] |  |
Corporate Securities [Abstract] |  |
Corporate debt instruments held | 60,468 | 70,288
Debt securities [member] | Unlisted Securities [Member] |  |
Corporate Securities [Abstract] |  |
Corporate debt instruments held | $ 3,722,935 | $ 2,649,764

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