{
 "documentInfo": {
  "documentType": "https://xbrl.org/2021/xbrl-json",
  "features": {
   "xbrl:canonicalValues": true
  },
  "namespaces": {
   "ifrs-full": "http://xbrl.ifrs.org/taxonomy/2020-03-16/ifrs-full",
   "iso4217": "http://www.xbrl.org/2003/iso4217",
   "mBank": "http://www.mbank.pl/xbrl/2021",
   "scheme": "http://standards.iso.org/iso/17442",
   "xbrl": "https://xbrl.org/2021",
   "xbrli": "http://www.xbrl.org/2003/instance"
  },
  "taxonomy": [
   "http://www.mbank.pl/xbrl/2021/259400DZXF7UJKK2AY35-2021-12-31.xsd"
  ]
 },
 "facts": {
  "Tag1": {
   "value": "4431737000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:RevenueFromInterest",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag2": {
   "value": "4688353000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:RevenueFromInterest",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag3": {
   "value": "3947950000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:InterestRevenueCalculatedUsingEffectiveInterestMethod",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag4": {
   "value": "4207276000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:InterestRevenueCalculatedUsingEffectiveInterestMethod",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag5": {
   "value": "483787000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:IncomeSimilarToInterestOnFinancialAssetsAtFairValueThroughProfitOrLoss",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag6": {
   "value": "481077000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:IncomeSimilarToInterestOnFinancialAssetsAtFairValueThroughProfitOrLoss",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag7": {
   "value": "327694000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:InterestExpense",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag8": {
   "value": "679053000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:InterestExpense",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag9": {
   "value": "4104043000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:InterestRevenueExpense",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag10": {
   "value": "4009300000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:InterestRevenueExpense",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag11": {
   "value": "2714896000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:FeeAndCommissionIncome",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag12": {
   "value": "2244561000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:FeeAndCommissionIncome",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag13": {
   "value": "824875000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:FeeAndCommissionExpense",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag14": {
   "value": "736276000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:FeeAndCommissionExpense",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag15": {
   "value": "1890021000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:FeeAndCommissionIncomeExpense",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag16": {
   "value": "1508285000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:FeeAndCommissionIncomeExpense",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag17": {
   "value": "5046000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:RevenueFromDividends",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag18": {
   "value": "4926000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:RevenueFromDividends",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag19": {
   "value": "96890000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:NetTradingIncomeExpense",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag20": {
   "value": "184752000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:NetTradingIncomeExpense",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag21": {
   "value": "4608000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:GainsLossesOnNonTradingFinancialAssetsMandatorilyAtFairValueThroughProfitOrLoss",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag22": {
   "value": "15572000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:GainsLossesOnNonTradingFinancialAssetsMandatorilyAtFairValueThroughProfitOrLoss",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag23": {
   "value": "93690000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:GainsLossesArisingFromDerecognitionOfFinancialAssetsAndLiabilitiesNotMeasuredAtFairValueThroughProfitOrLoss",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag24": {
   "value": "93527000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:GainsLossesArisingFromDerecognitionOfFinancialAssetsAndLiabilitiesNotMeasuredAtFairValueThroughProfitOrLoss",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag25": {
   "value": "232384000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherIncome",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag26": {
   "value": "218052000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherIncome",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag27": {
   "value": "873226000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ImpairmentLossImpairmentGainAndReversalOfImpairmentLossDeterminedInAccordanceWithIFRS9",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag28": {
   "value": "1225642000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ImpairmentLossImpairmentGainAndReversalOfImpairmentLossDeterminedInAccordanceWithIFRS9",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag29": {
   "value": "2758079000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:CostOfLegalRiskRelatedToForeignCurrencyLoans",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag30": {
   "value": "1021714000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:CostOfLegalRiskRelatedToForeignCurrencyLoans",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag31": {
   "value": "2020629000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdministrativeExpense",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag32": {
   "value": "1980500000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdministrativeExpense",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag33": {
   "value": "436254000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DepreciationAndAmortisationExpense",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag34": {
   "value": "430628000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DepreciationAndAmortisationExpense",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag35": {
   "value": "320898000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherExpenseByNature",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag36": {
   "value": "234820000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherExpenseByNature",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag37": {
   "value": "17596000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromOperatingActivities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag38": {
   "value": "1141110000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromOperatingActivities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag39": {
   "value": "608627000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:TaxExpenseOtherThanIncomeTaxExpense",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag40": {
   "value": "531379000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:TaxExpenseOtherThanIncomeTaxExpense",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag41": {
   "value": "-591031000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossBeforeTax",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag42": {
   "value": "609731000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossBeforeTax",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag43": {
   "value": "587782000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxExpenseContinuingOperations",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag44": {
   "value": "505974000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxExpenseContinuingOperations",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag45": {
   "value": "-1178813000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag46": {
   "value": "103757000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag47": {
   "value": "-1178753000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossAttributableToOwnersOfParent",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag48": {
   "value": "103831000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossAttributableToOwnersOfParent",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag49": {
   "value": "-60000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossAttributableToNoncontrollingInterests",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag50": {
   "value": "-74000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossAttributableToNoncontrollingInterests",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag51": {
   "value": "-1178753000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossAttributableToOwnersOfParent",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag52": {
   "value": "103831000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossAttributableToOwnersOfParent",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag53": {
   "value": "42369790",
   "decimals": 0,
   "dimensions": {
    "concept": "ifrs-full:WeightedAverageShares",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "xbrli:shares"
   }
  },
  "Tag54": {
   "value": "42355695",
   "decimals": 0,
   "dimensions": {
    "concept": "ifrs-full:WeightedAverageShares",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "xbrli:shares"
   }
  },
  "Tag55": {
   "value": "-27.82",
   "decimals": 2,
   "dimensions": {
    "concept": "ifrs-full:BasicEarningsLossPerShare",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN/xbrli:shares"
   }
  },
  "Tag56": {
   "value": "2.45",
   "decimals": 2,
   "dimensions": {
    "concept": "ifrs-full:BasicEarningsLossPerShare",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN/xbrli:shares"
   }
  },
  "Tag57": {
   "value": "42450509",
   "decimals": 0,
   "dimensions": {
    "concept": "ifrs-full:AdjustedWeightedAverageShares",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "xbrli:shares"
   }
  },
  "Tag58": {
   "value": "42379726",
   "decimals": 0,
   "dimensions": {
    "concept": "ifrs-full:AdjustedWeightedAverageShares",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "xbrli:shares"
   }
  },
  "Tag59": {
   "value": "-27.77",
   "decimals": 2,
   "dimensions": {
    "concept": "ifrs-full:DilutedEarningsLossPerShare",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN/xbrli:shares"
   }
  },
  "Tag60": {
   "value": "2.45",
   "decimals": 2,
   "dimensions": {
    "concept": "ifrs-full:DilutedEarningsLossPerShare",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN/xbrli:shares"
   }
  },
  "Tag61": {
   "value": "-1178813000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag62": {
   "value": "103757000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag63": {
   "value": "-1788889000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncome",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag64": {
   "value": "407791000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncome",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag65": {
   "value": "4898000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationNetOfTax",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag66": {
   "value": "3043000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationNetOfTax",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag67": {
   "value": "-919332000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeNetOfTaxCashFlowHedges",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag68": {
   "value": "299988000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeNetOfTaxCashFlowHedges",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag69": {
   "value": "-892950000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeNetOfTaxFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag70": {
   "value": "111012000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeNetOfTaxFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag71": {
   "value": "7059000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag72": {
   "value": "-6252000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag73": {
   "value": "11436000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRevaluation",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag74": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRevaluation",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag75": {
   "value": "-2967702000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag76": {
   "value": "511548000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag77": {
   "value": "-2967642000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag78": {
   "value": "511622000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag79": {
   "value": "-60000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncomeAttributableToNoncontrollingInterests",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag80": {
   "value": "-74000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncomeAttributableToNoncontrollingInterests",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag81": {
   "value": "12202266000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashAndBankBalancesAtCentralBanks",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag82": {
   "value": "3968691000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashAndBankBalancesAtCentralBanks",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag83": {
   "value": "7897010000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashAndBankBalancesAtCentralBanks",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag84": {
   "value": "2589076000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:FinancialAssetsHeldForTradingAndHedgingDerivatives",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag85": {
   "value": "2586721000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:FinancialAssetsHeldForTradingAndHedgingDerivatives",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag86": {
   "value": "2866034000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:FinancialAssetsHeldForTradingAndHedgingDerivatives",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag87": {
   "value": "1417191000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValue",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag88": {
   "value": "1784691000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValue",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag89": {
   "value": "2267922000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValue",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag90": {
   "value": "224389000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:EquityInstrumentsMandatorilyMeasuredAtFairValue",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag91": {
   "value": "202304000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:EquityInstrumentsMandatorilyMeasuredAtFairValue",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag92": {
   "value": "162616000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:EquityInstrumentsMandatorilyMeasuredAtFairValue",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag93": {
   "value": "81128000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:DebtSecuritiesMandatorilyMeasuredAtFairValue",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag94": {
   "value": "76068000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:DebtSecuritiesMandatorilyMeasuredAtFairValue",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag95": {
   "value": "133774000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:DebtSecuritiesMandatorilyMeasuredAtFairValue",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag96": {
   "value": "1111674000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:LoansAndAdvancesToCustomersMandatorilyMeasuredAtFairValue",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag97": {
   "value": "1506319000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:LoansAndAdvancesToCustomersMandatorilyMeasuredAtFairValue",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag98": {
   "value": "1971532000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:LoansAndAdvancesToCustomersMandatorilyMeasuredAtFairValue",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag99": {
   "value": "36206059000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag100": {
   "value": "35498061000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag101": {
   "value": "22773921000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag102": {
   "value": "140296538000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:FinancialAssetsAtAmortisedCost",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag103": {
   "value": "130179902000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:FinancialAssetsAtAmortisedCost",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag104": {
   "value": "118412330000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:FinancialAssetsAtAmortisedCost",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag105": {
   "value": "16164103000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:DebtSecuritiesMeasuredAtAmortisedCost",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag106": {
   "value": "15952501000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:DebtSecuritiesMeasuredAtAmortisedCost",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag107": {
   "value": "11234873000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:DebtSecuritiesMeasuredAtAmortisedCost",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag108": {
   "value": "7229681000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:LoansAndAdvancesToBanks",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag109": {
   "value": "7354268000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:LoansAndAdvancesToBanks",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag110": {
   "value": "4341758000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:LoansAndAdvancesToBanks",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag111": {
   "value": "116902754000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:LoansAndAdvancesToCustomersMeasuredAtAmortisedCost",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag112": {
   "value": "106873133000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:LoansAndAdvancesToCustomersMeasuredAtAmortisedCost",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag113": {
   "value": "102835699000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:LoansAndAdvancesToCustomersMeasuredAtAmortisedCost",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag114": {
   "value": "1055478000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountAssets",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag115": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountAssets",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag116": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountAssets",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag117": {
   "value": "31247000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag118": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag119": {
   "value": "10651000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag120": {
   "value": "1283953000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IntangibleAssetsAndGoodwill",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag121": {
   "value": "1178698000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IntangibleAssetsAndGoodwill",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag122": {
   "value": "955440000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IntangibleAssetsAndGoodwill",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag123": {
   "value": "1542250000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:PropertyPlantAndEquipmentAndRightOfUse",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag124": {
   "value": "1514577000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:PropertyPlantAndEquipmentAndRightOfUse",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag125": {
   "value": "1262397000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:PropertyPlantAndEquipmentAndRightOfUse",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag126": {
   "value": "127510000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:InvestmentProperty",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag127": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:InvestmentProperty",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag128": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:InvestmentProperty",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag129": {
   "value": "28147000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentTaxAssets",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag130": {
   "value": "23957000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentTaxAssets",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag131": {
   "value": "12662000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentTaxAssets",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag132": {
   "value": "1392350000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DeferredTaxAssets",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag133": {
   "value": "853880000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DeferredTaxAssets",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag134": {
   "value": "937712000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DeferredTaxAssets",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag135": {
   "value": "1366820000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherAssets",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag136": {
   "value": "1282439000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherAssets",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag137": {
   "value": "956949000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherAssets",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag138": {
   "value": "199538885000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Assets",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag139": {
   "value": "178871617000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Assets",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag140": {
   "value": "158353028000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Assets",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag141": {
   "value": "2011182000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:FinancialLiabilitiesHeldForTradingAndHedgingDerivatives",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag142": {
   "value": "1338564000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:FinancialLiabilitiesHeldForTradingAndHedgingDerivatives",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag143": {
   "value": "948764000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:FinancialLiabilitiesHeldForTradingAndHedgingDerivatives",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag144": {
   "value": "179348925000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:FinancialLiabilitiesAtAmortisedCost",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag145": {
   "value": "156673052000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:FinancialLiabilitiesAtAmortisedCost",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag146": {
   "value": "137763369000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:FinancialLiabilitiesAtAmortisedCost",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag147": {
   "value": "3359558000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:AmountsDueToBanksMeasuredAtAmortisedCost",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag148": {
   "value": "2399740000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:AmountsDueToBanksMeasuredAtAmortisedCost",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag149": {
   "value": "1166871000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:AmountsDueToBanksMeasuredAtAmortisedCost",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag150": {
   "value": "159935129000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:AmountsDueToCustomersMeasuredAtAmortisedCost",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag151": {
   "value": "137698668000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:AmountsDueToCustomersMeasuredAtAmortisedCost",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag152": {
   "value": "116661138000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:AmountsDueToCustomersMeasuredAtAmortisedCost",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag153": {
   "value": "13429782000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DebtSecurities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag154": {
   "value": "13996317000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DebtSecurities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag155": {
   "value": "17435143000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DebtSecurities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag156": {
   "value": "2624456000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:SubordinatedLiabilities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag157": {
   "value": "2578327000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:SubordinatedLiabilities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag158": {
   "value": "2500217000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:SubordinatedLiabilities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag159": {
   "value": "110033000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountLiabilities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag160": {
   "value": "59624000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountLiabilities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag161": {
   "value": "136000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountLiabilities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag162": {
   "value": "7425000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag163": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag164": {
   "value": "1315000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag165": {
   "value": "811455000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherProvisions",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag166": {
   "value": "501691000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherProvisions",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag167": {
   "value": "371741000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherProvisions",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag168": {
   "value": "61910000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentTaxLiabilities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag169": {
   "value": "225796000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentTaxLiabilities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag170": {
   "value": "161534000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentTaxLiabilities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag171": {
   "value": "89000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DeferredTaxLiabilities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag172": {
   "value": "690000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DeferredTaxLiabilities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag173": {
   "value": "82000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DeferredTaxLiabilities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag174": {
   "value": "3469950000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherLiabilities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag175": {
   "value": "3397133000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherLiabilities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag176": {
   "value": "2952782000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherLiabilities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag177": {
   "value": "185820969000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Liabilities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag178": {
   "value": "162196550000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Liabilities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag179": {
   "value": "142199723000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Liabilities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag180": {
   "value": "13716050000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:EquityAttributableToOwnersOfParent",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag181": {
   "value": "16673133000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:EquityAttributableToOwnersOfParent",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag182": {
   "value": "16151303000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:EquityAttributableToOwnersOfParent",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag183": {
   "value": "3593944000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:ShareCapital",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag184": {
   "value": "3587035000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:ShareCapital",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag185": {
   "value": "3579818000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:ShareCapital",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag186": {
   "value": "169540000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IssuedCapital",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag187": {
   "value": "169468000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IssuedCapital",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag188": {
   "value": "169401000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IssuedCapital",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag189": {
   "value": "3424404000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:SharePremium",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag190": {
   "value": "3417567000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:SharePremium",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag191": {
   "value": "3410417000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:SharePremium",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag192": {
   "value": "11326494000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:RetainedEarnings",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag193": {
   "value": "12501597000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:RetainedEarnings",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag194": {
   "value": "12394775000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:RetainedEarnings",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag195": {
   "value": "12505247000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:ProfitFromThePreviousYears",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag196": {
   "value": "12397766000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:ProfitFromThePreviousYears",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag197": {
   "value": "12394775000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:ProfitFromThePreviousYears",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag198": {
   "value": "-1178753000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:ProfitForTheCurrentYear",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag199": {
   "value": "103831000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:ProfitForTheCurrentYear",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag200": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:ProfitForTheCurrentYear",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag201": {
   "value": "-1204388000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherReserves",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag202": {
   "value": "584501000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherReserves",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag203": {
   "value": "176710000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherReserves",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag204": {
   "value": "1866000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncontrollingInterests",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag205": {
   "value": "1934000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncontrollingInterests",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag206": {
   "value": "2002000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncontrollingInterests",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag207": {
   "value": "13717916000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag208": {
   "value": "16675067000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag209": {
   "value": "16153305000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag210": {
   "value": "199538885000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:EquityAndLiabilities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag211": {
   "value": "178871617000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:EquityAndLiabilities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag212": {
   "value": "158353028000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:EquityAndLiabilities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag213": {
   "value": "16.58",
   "decimals": 2,
   "dimensions": {
    "concept": "mBank:TotalCapitalRatio",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag214": {
   "value": "19.86",
   "decimals": 2,
   "dimensions": {
    "concept": "mBank:TotalCapitalRatio",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag215": {
   "value": "19.46",
   "decimals": 2,
   "dimensions": {
    "concept": "mBank:TotalCapitalRatio",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag216": {
   "value": "14.16",
   "decimals": 2,
   "dimensions": {
    "concept": "mBank:CommonEquityTierICapitalRatio",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag217": {
   "value": "16.99",
   "decimals": 2,
   "dimensions": {
    "concept": "mBank:CommonEquityTierICapitalRatio",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag218": {
   "value": "16.51",
   "decimals": 2,
   "dimensions": {
    "concept": "mBank:CommonEquityTierICapitalRatio",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag219": {
   "value": "13716050000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:EquityAttributableToOwnersOfParent",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag220": {
   "value": "16673133000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:EquityAttributableToOwnersOfParent",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag221": {
   "value": "16151303000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:EquityAttributableToOwnersOfParent",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag222": {
   "value": "42384884",
   "decimals": 0,
   "dimensions": {
    "concept": "ifrs-full:NumberOfSharesIssuedAndFullyPaid",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "xbrli:shares"
   }
  },
  "Tag223": {
   "value": "42367040",
   "decimals": 0,
   "dimensions": {
    "concept": "ifrs-full:NumberOfSharesIssuedAndFullyPaid",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "xbrli:shares"
   }
  },
  "Tag224": {
   "value": "42350367",
   "decimals": 0,
   "dimensions": {
    "concept": "ifrs-full:NumberOfSharesIssuedAndFullyPaid",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "xbrli:shares"
   }
  },
  "Tag225": {
   "value": "323.61",
   "decimals": 2,
   "dimensions": {
    "concept": "mBank:BookValuePerShare",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag226": {
   "value": "393.54",
   "decimals": 2,
   "dimensions": {
    "concept": "mBank:BookValuePerShare",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag227": {
   "value": "381.37",
   "decimals": 2,
   "dimensions": {
    "concept": "mBank:BookValuePerShare",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag228": {
   "value": "169468000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-02T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag229": {
   "value": "3417567000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-02T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag230": {
   "value": "12501597000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-02T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "mBank:RetainedEarningsProfitFromThePreviousYearsMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag231": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-02T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "mBank:RetainedEarningsProfitForTheCurrentYearAattributableToOwnersOfBankMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag232": {
   "value": "584501000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-02T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:AccumulatedOtherComprehensiveIncomeMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag233": {
   "value": "16673133000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-02T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag234": {
   "value": "1934000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-02T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag235": {
   "value": "16675067000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag236": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag237": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag238": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "mBank:RetainedEarningsProfitFromThePreviousYearsMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag239": {
   "value": "-1178753000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "mBank:RetainedEarningsProfitForTheCurrentYearAattributableToOwnersOfBankMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag240": {
   "value": "-1788889000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:AccumulatedOtherComprehensiveIncomeMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag241": {
   "value": "-2967642000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag242": {
   "value": "-60000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag243": {
   "value": "-2967702000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag244": {
   "value": "72000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag245": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag246": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "mBank:RetainedEarningsProfitFromThePreviousYearsMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag247": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "mBank:RetainedEarningsProfitForTheCurrentYearAattributableToOwnersOfBankMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag248": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:AccumulatedOtherComprehensiveIncomeMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag249": {
   "value": "72000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag250": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag251": {
   "value": "72000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag252": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesEquity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag253": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesEquity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag254": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesEquity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "mBank:RetainedEarningsProfitFromThePreviousYearsMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag255": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesEquity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "mBank:RetainedEarningsProfitForTheCurrentYearAattributableToOwnersOfBankMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag256": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesEquity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:AccumulatedOtherComprehensiveIncomeMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag257": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesEquity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag258": {
   "value": "-8000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesEquity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag259": {
   "value": "-8000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesEquity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag260": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag261": {
   "value": "6837000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag262": {
   "value": "3650000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "mBank:RetainedEarningsProfitFromThePreviousYearsMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag263": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "mBank:RetainedEarningsProfitForTheCurrentYearAattributableToOwnersOfBankMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag264": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:AccumulatedOtherComprehensiveIncomeMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag265": {
   "value": "10487000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag266": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag267": {
   "value": "10487000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag268": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:SharebasedPaymentTransactionsValueOfServicesProvidedByEmployees",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag269": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:SharebasedPaymentTransactionsValueOfServicesProvidedByEmployees",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag270": {
   "value": "10487000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:SharebasedPaymentTransactionsValueOfServicesProvidedByEmployees",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "mBank:RetainedEarningsProfitFromThePreviousYearsMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag271": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:SharebasedPaymentTransactionsValueOfServicesProvidedByEmployees",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "mBank:RetainedEarningsProfitForTheCurrentYearAattributableToOwnersOfBankMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag272": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:SharebasedPaymentTransactionsValueOfServicesProvidedByEmployees",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:AccumulatedOtherComprehensiveIncomeMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag273": {
   "value": "10487000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:SharebasedPaymentTransactionsValueOfServicesProvidedByEmployees",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag274": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:SharebasedPaymentTransactionsValueOfServicesProvidedByEmployees",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag275": {
   "value": "10487000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:SharebasedPaymentTransactionsValueOfServicesProvidedByEmployees",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag276": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:SharebasedPaymentTransactionsSettlementOfExercisedOptions",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag277": {
   "value": "6837000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:SharebasedPaymentTransactionsSettlementOfExercisedOptions",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag278": {
   "value": "-6837000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:SharebasedPaymentTransactionsSettlementOfExercisedOptions",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "mBank:RetainedEarningsProfitFromThePreviousYearsMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag279": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:SharebasedPaymentTransactionsSettlementOfExercisedOptions",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "mBank:RetainedEarningsProfitForTheCurrentYearAattributableToOwnersOfBankMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag280": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:SharebasedPaymentTransactionsSettlementOfExercisedOptions",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:AccumulatedOtherComprehensiveIncomeMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag281": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:SharebasedPaymentTransactionsSettlementOfExercisedOptions",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag282": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:SharebasedPaymentTransactionsSettlementOfExercisedOptions",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag283": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:SharebasedPaymentTransactionsSettlementOfExercisedOptions",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag284": {
   "value": "169540000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag285": {
   "value": "3424404000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag286": {
   "value": "12505247000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "mBank:RetainedEarningsProfitFromThePreviousYearsMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag287": {
   "value": "-1178753000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "mBank:RetainedEarningsProfitForTheCurrentYearAattributableToOwnersOfBankMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag288": {
   "value": "-1204388000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:AccumulatedOtherComprehensiveIncomeMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag289": {
   "value": "13716050000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag290": {
   "value": "1866000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag291": {
   "value": "13717916000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag292": {
   "value": "169401000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag293": {
   "value": "3410417000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag294": {
   "value": "12394775000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "mBank:RetainedEarningsProfitFromThePreviousYearsMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag295": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "mBank:RetainedEarningsProfitForTheCurrentYearAattributableToOwnersOfBankMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag296": {
   "value": "176710000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:AccumulatedOtherComprehensiveIncomeMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag297": {
   "value": "16151303000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag298": {
   "value": "2002000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag299": {
   "value": "16153305000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag300": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag301": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag302": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "mBank:RetainedEarningsProfitFromThePreviousYearsMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag303": {
   "value": "103831000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "mBank:RetainedEarningsProfitForTheCurrentYearAattributableToOwnersOfBankMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag304": {
   "value": "407791000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:AccumulatedOtherComprehensiveIncomeMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag305": {
   "value": "511622000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag306": {
   "value": "-74000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag307": {
   "value": "511548000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag308": {
   "value": "67000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag309": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag310": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "mBank:RetainedEarningsProfitFromThePreviousYearsMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag311": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "mBank:RetainedEarningsProfitForTheCurrentYearAattributableToOwnersOfBankMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag312": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:AccumulatedOtherComprehensiveIncomeMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag313": {
   "value": "67000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag314": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag315": {
   "value": "67000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag316": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesEquity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag317": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesEquity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag318": {
   "value": "-18000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesEquity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "mBank:RetainedEarningsProfitFromThePreviousYearsMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag319": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesEquity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "mBank:RetainedEarningsProfitForTheCurrentYearAattributableToOwnersOfBankMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag320": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesEquity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:AccumulatedOtherComprehensiveIncomeMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag321": {
   "value": "-18000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesEquity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag322": {
   "value": "6000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesEquity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag323": {
   "value": "-12000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesEquity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag324": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag325": {
   "value": "7150000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag326": {
   "value": "3009000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "mBank:RetainedEarningsProfitFromThePreviousYearsMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag327": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "mBank:RetainedEarningsProfitForTheCurrentYearAattributableToOwnersOfBankMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag328": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:AccumulatedOtherComprehensiveIncomeMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag329": {
   "value": "10159000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag330": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag331": {
   "value": "10159000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag332": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:SharebasedPaymentTransactionsValueOfServicesProvidedByEmployees",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag333": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:SharebasedPaymentTransactionsValueOfServicesProvidedByEmployees",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag334": {
   "value": "10159000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:SharebasedPaymentTransactionsValueOfServicesProvidedByEmployees",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "mBank:RetainedEarningsProfitFromThePreviousYearsMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag335": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:SharebasedPaymentTransactionsValueOfServicesProvidedByEmployees",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "mBank:RetainedEarningsProfitForTheCurrentYearAattributableToOwnersOfBankMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag336": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:SharebasedPaymentTransactionsValueOfServicesProvidedByEmployees",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:AccumulatedOtherComprehensiveIncomeMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag337": {
   "value": "10159000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:SharebasedPaymentTransactionsValueOfServicesProvidedByEmployees",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag338": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:SharebasedPaymentTransactionsValueOfServicesProvidedByEmployees",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag339": {
   "value": "10159000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:SharebasedPaymentTransactionsValueOfServicesProvidedByEmployees",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag340": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:SharebasedPaymentTransactionsSettlementOfExercisedOptions",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag341": {
   "value": "7150000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:SharebasedPaymentTransactionsSettlementOfExercisedOptions",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag342": {
   "value": "-7150000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:SharebasedPaymentTransactionsSettlementOfExercisedOptions",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "mBank:RetainedEarningsProfitFromThePreviousYearsMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag343": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:SharebasedPaymentTransactionsSettlementOfExercisedOptions",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "mBank:RetainedEarningsProfitForTheCurrentYearAattributableToOwnersOfBankMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag344": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:SharebasedPaymentTransactionsSettlementOfExercisedOptions",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:AccumulatedOtherComprehensiveIncomeMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag345": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:SharebasedPaymentTransactionsSettlementOfExercisedOptions",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag346": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:SharebasedPaymentTransactionsSettlementOfExercisedOptions",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag347": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:SharebasedPaymentTransactionsSettlementOfExercisedOptions",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag348": {
   "value": "169468000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag349": {
   "value": "3417567000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:SharePremiumMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag350": {
   "value": "12397766000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "mBank:RetainedEarningsProfitFromThePreviousYearsMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag351": {
   "value": "103831000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "mBank:RetainedEarningsProfitForTheCurrentYearAattributableToOwnersOfBankMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag352": {
   "value": "584501000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:AccumulatedOtherComprehensiveIncomeMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag353": {
   "value": "16673133000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag354": {
   "value": "1934000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:PLN"
   }
  },
  "Tag355": {
   "value": "16675067000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag356": {
   "value": "-591031000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossBeforeTax",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag357": {
   "value": "609731000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossBeforeTax",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag358": {
   "value": "11394965000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForReconcileProfitLoss",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag359": {
   "value": "718274000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForReconcileProfitLoss",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag360": {
   "value": "837687000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxesPaidRefundClassifiedAsOperatingActivities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag361": {
   "value": "444196000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxesPaidRefundClassifiedAsOperatingActivities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag362": {
   "value": "468584000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForDepreciationAndAmortisationExpense",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag363": {
   "value": "466724000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForDepreciationAndAmortisationExpense",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag364": {
   "value": "205130000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForUnrealisedForeignExchangeLossesGains",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag365": {
   "value": "942252000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForUnrealisedForeignExchangeLossesGains",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag366": {
   "value": "14965000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:GainsLossesOnInvestingActivities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag367": {
   "value": "-94232000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:GainsLossesOnInvestingActivities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag368": {
   "value": "5046000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForDividendIncome",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag369": {
   "value": "4926000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForDividendIncome",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag370": {
   "value": "4431737000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForInterestIncome",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag371": {
   "value": "4688353000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForInterestIncome",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag372": {
   "value": "327694000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForInterestExpense",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag373": {
   "value": "679053000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForInterestExpense",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag374": {
   "value": "4676029000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:InterestReceivedClassifiedAsOperatingActivities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag375": {
   "value": "5446532000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:InterestReceivedClassifiedAsOperatingActivities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag376": {
   "value": "234411000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:InterestPaidClassifiedAsOperatingActivities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag377": {
   "value": "694825000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:InterestPaidClassifiedAsOperatingActivities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag378": {
   "value": "96423000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForDecreaseIncreaseInLoansAndAdvancesToBanks",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag379": {
   "value": "-3157249000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForDecreaseIncreaseInLoansAndAdvancesToBanks",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag380": {
   "value": "-1452131000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:ChangesInFinancialAssetsAndLiabilitiesHeldForTradingAndHedgingDerivatives",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag381": {
   "value": "1166492000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:ChangesInFinancialAssetsAndLiabilitiesHeldForTradingAndHedgingDerivatives",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag382": {
   "value": "-9529116000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForDecreaseIncreaseInLoansAndAdvancesToCustomers",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag383": {
   "value": "-3773745000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForDecreaseIncreaseInLoansAndAdvancesToCustomers",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag384": {
   "value": "-2054013000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:ChangesInFinancialAssetsAtFairValueThroughOtherComprehensiveIncome",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag385": {
   "value": "-13167129000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:ChangesInFinancialAssetsAtFairValueThroughOtherComprehensiveIncome",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag386": {
   "value": "-284047000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:ChangesInSecuritiesAtAmortisedCost",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag387": {
   "value": "-4716586000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:ChangesInSecuritiesAtAmortisedCost",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag388": {
   "value": "-17617000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:ChangesOfNonTradingSecuritiesMandatorilyAtFairValueThroughProfitOrLoss",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag389": {
   "value": "10211000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:ChangesOfNonTradingSecuritiesMandatorilyAtFairValueThroughProfitOrLoss",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag390": {
   "value": "-61058000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForDecreaseIncreaseInOtherAssets",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag391": {
   "value": "-396254000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForDecreaseIncreaseInOtherAssets",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag392": {
   "value": "991300000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:AdjustmentsForIncreaseDecreaseInAmountsDueToBanksMeasuredAtAmortisedCost",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag393": {
   "value": "1448331000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:AdjustmentsForIncreaseDecreaseInAmountsDueToBanksMeasuredAtAmortisedCost",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag394": {
   "value": "23322323000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:AdjustmentsForIncreaseDecreaseInAmountsDueToCustomersMeasuredAtAmortisedCost",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag395": {
   "value": "20784682000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:AdjustmentsForIncreaseDecreaseInAmountsDueToCustomersMeasuredAtAmortisedCost",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag396": {
   "value": "-246519000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:ChangesInIssuedDebtSecurities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag397": {
   "value": "354706000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:ChangesInIssuedDebtSecurities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag398": {
   "value": "309764000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForProvisions",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag399": {
   "value": "129950000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForProvisions",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag400": {
   "value": "136135000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForIncreaseDecreaseInOtherLiabilities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag401": {
   "value": "426836000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForIncreaseDecreaseInOtherLiabilities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag402": {
   "value": "10803934000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInOperatingActivities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag403": {
   "value": "1328005000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInOperatingActivities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag404": {
   "value": "5147000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherCashReceiptsFromSalesOfEquityOrDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag405": {
   "value": "7807000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherCashReceiptsFromSalesOfEquityOrDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag406": {
   "value": "85802000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProceedsFromDisposalsOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag407": {
   "value": "95620000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProceedsFromDisposalsOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag408": {
   "value": "5046000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DividendsReceivedClassifiedAsInvestingActivities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag409": {
   "value": "4926000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DividendsReceivedClassifiedAsInvestingActivities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag410": {
   "value": "14597000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag411": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag412": {
   "value": "589404000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag413": {
   "value": "552487000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag414": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag415": {
   "value": "-212000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag416": {
   "value": "-508006000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInInvestingActivities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag417": {
   "value": "-444346000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInInvestingActivities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag418": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:ProceedsFromLoansAndAdvancesFromBanks",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag419": {
   "value": "500000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:ProceedsFromLoansAndAdvancesFromBanks",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag420": {
   "value": "3497354000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProceedsFromIssueOfBondsNotesAndDebentures",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag421": {
   "value": "60000000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProceedsFromIssueOfBondsNotesAndDebentures",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag422": {
   "value": "72000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProceedsFromIssueOfOrdinaryShares",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag423": {
   "value": "67000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProceedsFromIssueOfOrdinaryShares",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag424": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:RepaymentsOfLoansAndAdvancesFromBanks",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag425": {
   "value": "196140000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:RepaymentsOfLoansAndAdvancesFromBanks",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag426": {
   "value": "1358250000",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:RepaymentsOfOtherLoansAndAdvances",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag427": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "mBank:RepaymentsOfOtherLoansAndAdvances",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag428": {
   "value": "3980595000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:RepaymentsOfBondsNotesAndDebentures",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag429": {
   "value": "4605077000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:RepaymentsOfBondsNotesAndDebentures",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag430": {
   "value": "93616000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag431": {
   "value": "119501000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag432": {
   "value": "59691000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:InterestPaidClassifiedAsFinancingActivities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag433": {
   "value": "84733000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:InterestPaidClassifiedAsFinancingActivities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag434": {
   "value": "-1994726000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag435": {
   "value": "-4944884000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag436": {
   "value": "8301202000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag437": {
   "value": "-4061225000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag438": {
   "value": "-9649000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag439": {
   "value": "30883000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag440": {
   "value": "4249046000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalents",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag441": {
   "value": "8279388000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalents",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag442": {
   "value": "12540599000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalents",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "Tag443": {
   "value": "4249046000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalents",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:PLN"
   }
  },
  "TextTag1": {
   "value": "mBank S.A.",
   "dimensions": {
    "concept": "ifrs-full:NameOfReportingEntityOrOtherMeansOfIdentification",
    "language": "pl",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  },
  "TextTag2": {
   "value": "n/d",
   "dimensions": {
    "concept": "ifrs-full:ExplanationOfChangeInNameOfReportingEntityOrOtherMeansOfIdentificationFromEndOfPrecedingReportingPeriod",
    "language": "pl",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  },
  "TextTag3": {
   "value": "00-850 Warszawa, ul. Prosta 18",
   "dimensions": {
    "concept": "ifrs-full:DomicileOfEntity",
    "language": "pl",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  },
  "TextTag4": {
   "value": "sp\u00f3\u0142ka akcyjna",
   "dimensions": {
    "concept": "ifrs-full:LegalFormOfEntity",
    "language": "pl",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  },
  "TextTag5": {
   "value": "Polska",
   "dimensions": {
    "concept": "ifrs-full:CountryOfIncorporation",
    "language": "pl",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  },
  "TextTag6": {
   "value": "00-850 Warszawa, ul. Prosta 18",
   "dimensions": {
    "concept": "ifrs-full:AddressOfRegisteredOfficeOfEntity",
    "language": "pl",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  },
  "TextTag7": {
   "value": "Polska",
   "dimensions": {
    "concept": "ifrs-full:PrincipalPlaceOfBusiness",
    "language": "pl",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  },
  "TextTag8": {
   "value": "\u015bwiadczenie us\u0142ug bankowych i konsultacyjno-doradczych w sprawach finansowych oraz prowadzenie dzia\u0142alno\u015bci gospodarczej w zakresie okre\u015blonym w Statucie",
   "dimensions": {
    "concept": "ifrs-full:DescriptionOfNatureOfEntitysOperationsAndPrincipalActivities",
    "language": "pl",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  },
  "TextTag9": {
   "value": "Commerzbank AG",
   "dimensions": {
    "concept": "ifrs-full:NameOfParentEntity",
    "language": "pl",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  },
  "TextTag10": {
   "value": "Commerzbank AG",
   "dimensions": {
    "concept": "ifrs-full:NameOfUltimateParentOfGroup",
    "language": "pl",
    "entity": "scheme:259400DZXF7UJKK2AY35",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  }
 }
}