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Basis for Preparation of Financial Statements and Applicable Accounting Standards - Summary of Total Assets, Liabilities and Net Shareholders Equity (Detail) - ARS ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
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Basis for preparation of financial statements and applicable accounting standards [line items] |  |
Assets | $ 999,299,463 | $ 1,169,086,869
Liabilities | 759,662,018 | 940,341,140
Equity attributable to the owners of the Bank | 239,599,563 | 228,742,907
Equity attributable to non-controlling interests | 37,882 | 2,822
Banco Macro SA [member] |  |
Basis for preparation of financial statements and applicable accounting standards [line items] |  |
Assets | 983,858,205 | 1,138,994,865
Liabilities | 744,258,642 | 910,251,958
Equity attributable to the owners of the Bank | 239,599,563 | 228,742,907
Macro Bank Limited [member] |  |
Basis for preparation of financial statements and applicable accounting standards [line items] |  |
Assets | 9,147,844 | 11,413,967
Liabilities | 6,178,147 | 7,482,320
Equity attributable to the owners of the Bank | 2,969,697 | 3,931,647
Macro Securities SA [member] |  |
Basis for preparation of financial statements and applicable accounting standards [line items] |  |
Assets | 15,084,713 | 29,081,800
Liabilities | 11,710,996 | 26,562,125
Equity attributable to the owners of the Bank | 3,201,429 | 2,403,681
Equity attributable to non-controlling interests | 172,288 | 115,994
Macro Fiducia SA [member] |  |
Basis for preparation of financial statements and applicable accounting standards [line items] |  |
Assets | 122,368 | 133,432
Liabilities | 2,874 | 8,123
Equity attributable to the owners of the Bank | 119,494 | 125,309
Argenpay SAU [Member] |  |
Basis for preparation of financial statements and applicable accounting standards [line items] |  |
Assets | 1,184,518 | 530,917
Liabilities | 694,678 | 256,184
Equity attributable to the owners of the Bank | 489,840 | 274,733
Fintech SGR [Member] |  |
Basis for preparation of financial statements and applicable accounting standards [line items] |  |
Assets | 1,395,123 |
Liabilities | 1,349,026 |
Equity attributable to the owners of the Bank | 46,097 |
Eliminations [member] |  |
Basis for preparation of financial statements and applicable accounting standards [line items] |  |
Assets | (11,493,308) | (11,068,112)
Liabilities | (4,532,345) | (4,219,570)
Equity attributable to the owners of the Bank | (6,826,557) | (6,735,370)
Equity attributable to non-controlling interests | $ (134,406) | $ (113,172)

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