{
 "documentInfo": {
  "documentType": "https://xbrl.org/2021/xbrl-json",
  "features": {
   "xbrl:canonicalValues": true
  },
  "namespaces": {
   "ACK": "http://avh.be/2021-12-31",
   "ifrs-full": "http://xbrl.ifrs.org/taxonomy/2020-03-16/ifrs-full",
   "iso4217": "http://www.xbrl.org/2003/iso4217",
   "scheme": "http://standards.iso.org/iso/17442",
   "xbrl": "https://xbrl.org/2021",
   "xbrli": "http://www.xbrl.org/2003/instance"
  },
  "taxonomy": [
   "http://avh.be/2021-12-31/5493005E2GHATS0Z6J59-2021-12-31.xsd"
  ]
 },
 "facts": {
  "f15257": {
   "value": "4312374000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Revenue",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15261": {
   "value": "3910250000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Revenue",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15272": {
   "value": "99279000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:RevenueFromRenderingOfServices",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15277": {
   "value": "95880000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:RevenueFromRenderingOfServices",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15289": {
   "value": "225495000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:RevenueFromRealEstate",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15294": {
   "value": "226468000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:RevenueFromRealEstate",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15304": {
   "value": "103801000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:RevenueFromInterestBankingOperations",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15308": {
   "value": "102803000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:RevenueFromInterestBankingOperations",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15317": {
   "value": "98566000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:FeeAndCommissionIncomeExpenseBankingOperations",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15321": {
   "value": "77857000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:FeeAndCommissionIncomeExpenseBankingOperations",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15333": {
   "value": "3664508000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:RevenueFromConstructionContracts",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15337": {
   "value": "3264108000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:RevenueFromConstructionContracts",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15345": {
   "value": "120726000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherRevenue",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15349": {
   "value": "143134000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherRevenue",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15361": {
   "value": "4023991000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OperatingExpense",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15367": {
   "value": "3773047000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OperatingExpense",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15381": {
   "value": "2673943000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:RawMaterialsAndConsumablesUsedServicesExpenseAndSubcontractedWork",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15386": {
   "value": "2532009000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:RawMaterialsAndConsumablesUsedServicesExpenseAndSubcontractedWork",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15399": {
   "value": "22759000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:InterestExpenseBankingOperations",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15404": {
   "value": "22710000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:InterestExpenseBankingOperations",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15416": {
   "value": "877690000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:EmployeeBenefitsExpense",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15421": {
   "value": "816589000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:EmployeeBenefitsExpense",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15431": {
   "value": "350553000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DepreciationExpense",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15436": {
   "value": "350772000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DepreciationExpense",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15446": {
   "value": "45810000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15451": {
   "value": "9592000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15461": {
   "value": "52687000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:MiscellaneousOtherOperatingExpense",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15465": {
   "value": "39797000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:MiscellaneousOtherOperatingExpense",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15474": {
   "value": "550000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:ChangesInProvisionsRecognisedInProfitOrLoss",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15478": {
   "value": "1579000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:ChangesInProvisionsRecognisedInProfitOrLoss",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15495": {
   "value": "34048000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLossAndGainsLossesOnFairValueAdjustmentInvestmentProperty",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15500": {
   "value": "-3805000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLossAndGainsLossesOnFairValueAdjustmentInvestmentProperty",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15514": {
   "value": "41077000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15520": {
   "value": "-35201000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15533": {
   "value": "-7029000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:GainsLossesOnFairValueAdjustmentInvestmentProperty",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15537": {
   "value": "31396000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:GainsLossesOnFairValueAdjustmentInvestmentProperty",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15550": {
   "value": "34699000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:GainsLossesOnDisposalsOfAssets",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15556": {
   "value": "90666000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:GainsLossesOnDisposalsOfAssets",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15569": {
   "value": "7182000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:GainsLossesOnDisposalsOfPropertyPlantAndEquipmentAndIntangibleAssetsOtherThanGoodwill",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15574": {
   "value": "12172000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:GainsLossesOnDisposalsOfPropertyPlantAndEquipmentAndIntangibleAssetsOtherThanGoodwill",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15586": {
   "value": "4403000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:GainsLossesOnDisposalsOfInvestmentProperties",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15591": {
   "value": "2211000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:GainsLossesOnDisposalsOfInvestmentProperties",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15603": {
   "value": "22951000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:GainsLossesOnDisposalsOfInvestments",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15608": {
   "value": "75837000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:GainsLossesOnDisposalsOfInvestments",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15622": {
   "value": "163000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:GainsLossesOnDisposalsOfOtherAssets",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15627": {
   "value": "446000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:GainsLossesOnDisposalsOfOtherAssets",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15642": {
   "value": "357130000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromOperatingActivities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15648": {
   "value": "224063000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromOperatingActivities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15661": {
   "value": "-27227000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:FinanceIncomeCost",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15666": {
   "value": "-73718000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:FinanceIncomeCost",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15676": {
   "value": "11941000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:RevenueFromInterest",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15681": {
   "value": "13737000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:RevenueFromInterest",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15694": {
   "value": "33694000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:InterestExpense",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15699": {
   "value": "39576000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:InterestExpense",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15710": {
   "value": "7056000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15716": {
   "value": "-16698000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15725": {
   "value": "-12530000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherFinanceIncomeCost",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15729": {
   "value": "-31182000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherFinanceIncomeCost",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15745": {
   "value": "6018000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:GainsLossesOnChangeInFairValueOfDerivatives",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15750": {
   "value": "-5242000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:GainsLossesOnChangeInFairValueOfDerivatives",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15764": {
   "value": "255191000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15769": {
   "value": "179253000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15781": {
   "value": "548000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:OtherNonOperatingIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15785": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:OtherNonOperatingIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15799": {
   "value": "-0",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:OtherNonOperatingExpense",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15803": {
   "value": "-0",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:OtherNonOperatingExpense",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15815": {
   "value": "591659000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossBeforeTax",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15821": {
   "value": "324356000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossBeforeTax",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15832": {
   "value": "79449000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxExpenseContinuingOperations",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15836": {
   "value": "46742000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxExpenseContinuingOperations",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15845": {
   "value": "5624000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15849": {
   "value": "44693000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15859": {
   "value": "85073000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentTaxExpenseIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15863": {
   "value": "91435000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentTaxExpenseIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15878": {
   "value": "512210000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromContinuingOperations",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15884": {
   "value": "277614000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromContinuingOperations",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15899": {
   "value": "-150000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromDiscontinuedOperations",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15902": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromDiscontinuedOperations",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15913": {
   "value": "512060000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15919": {
   "value": "277614000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15932": {
   "value": "105246000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossAttributableToNoncontrollingInterests",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15937": {
   "value": "47823000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossAttributableToNoncontrollingInterests",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15947": {
   "value": "406814000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossAttributableToOwnersOfParent",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15952": {
   "value": "229791000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossAttributableToOwnersOfParent",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f15991": {
   "value": "12.27",
   "decimals": 2,
   "dimensions": {
    "concept": "ifrs-full:BasicEarningsLossPerShare",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR/xbrli:shares"
   }
  },
  "f15995": {
   "value": "6.93",
   "decimals": 2,
   "dimensions": {
    "concept": "ifrs-full:BasicEarningsLossPerShare",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR/xbrli:shares"
   }
  },
  "f16007": {
   "value": "12.28",
   "decimals": 2,
   "dimensions": {
    "concept": "ifrs-full:BasicEarningsLossPerShareFromContinuingOperations",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR/xbrli:shares"
   }
  },
  "f16011": {
   "value": "6.93",
   "decimals": 2,
   "dimensions": {
    "concept": "ifrs-full:BasicEarningsLossPerShareFromContinuingOperations",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR/xbrli:shares"
   }
  },
  "f16037": {
   "value": "12.26",
   "decimals": 2,
   "dimensions": {
    "concept": "ifrs-full:DilutedEarningsLossPerShare",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR/xbrli:shares"
   }
  },
  "f16041": {
   "value": "6.93",
   "decimals": 2,
   "dimensions": {
    "concept": "ifrs-full:DilutedEarningsLossPerShare",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR/xbrli:shares"
   }
  },
  "f16054": {
   "value": "12.26",
   "decimals": 2,
   "dimensions": {
    "concept": "ifrs-full:DilutedEarningsLossPerShareFromContinuingOperations",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR/xbrli:shares"
   }
  },
  "f16059": {
   "value": "6.93",
   "decimals": 2,
   "dimensions": {
    "concept": "ifrs-full:DilutedEarningsLossPerShareFromContinuingOperations",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR/xbrli:shares"
   }
  },
  "f16121": {
   "value": "512060000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16127": {
   "value": "277614000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16138": {
   "value": "105246000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossAttributableToNoncontrollingInterests",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16143": {
   "value": "47823000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossAttributableToNoncontrollingInterests",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16152": {
   "value": "406814000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossAttributableToOwnersOfParent",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16158": {
   "value": "229791000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossAttributableToOwnersOfParent",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16176": {
   "value": "67061000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16183": {
   "value": "-44382000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16213": {
   "value": "-8456000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeBeforeTaxFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16217": {
   "value": "5333000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeBeforeTaxFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16228": {
   "value": "-2114000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxRelatingToFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16234": {
   "value": "1330000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxRelatingToFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16243": {
   "value": "-6341000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeNetOfTaxFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16247": {
   "value": "4003000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeNetOfTaxFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16267": {
   "value": "41063000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeBeforeTaxCashFlowHedges",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16271": {
   "value": "6543000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeBeforeTaxCashFlowHedges",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16281": {
   "value": "7657000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16285": {
   "value": "-1241000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16292": {
   "value": "33405000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeNetOfTaxCashFlowHedges",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16296": {
   "value": "7783000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeNetOfTaxCashFlowHedges",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16315": {
   "value": "36941000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16321": {
   "value": "-50418000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16360": {
   "value": "137000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeBeforeTaxGainsLossesFromInvestmentsInEquityInstruments",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16364": {
   "value": "7000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeBeforeTaxGainsLossesFromInvestmentsInEquityInstruments",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16373": {
   "value": "34000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxRelatingToInvestmentsInEquityInstrumentsOfOtherComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16376": {
   "value": "2000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxRelatingToInvestmentsInEquityInstrumentsOfOtherComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16383": {
   "value": "103000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesFromInvestmentsInEquityInstruments",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16387": {
   "value": "5000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesFromInvestmentsInEquityInstruments",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16407": {
   "value": "3820000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16413": {
   "value": "-7510000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16424": {
   "value": "866000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxRelatingToRemeasurementsOfDefinedBenefitPlansOfOtherComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16428": {
   "value": "-1754000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxRelatingToRemeasurementsOfDefinedBenefitPlansOfOtherComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16437": {
   "value": "2954000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16443": {
   "value": "-5756000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16463": {
   "value": "579122000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16469": {
   "value": "233232000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16482": {
   "value": "125981000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncomeAttributableToNoncontrollingInterests",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16487": {
   "value": "51741000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncomeAttributableToNoncontrollingInterests",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16497": {
   "value": "453141000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16503": {
   "value": "181491000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16727": {
   "value": "11301905000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentAssets",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16732": {
   "value": "10952870000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentAssets",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16741": {
   "value": "149391000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IntangibleAssetsOtherThanGoodwill",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16746": {
   "value": "147762000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IntangibleAssetsOtherThanGoodwill",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16757": {
   "value": "327829000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Goodwill",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16763": {
   "value": "325937000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Goodwill",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16775": {
   "value": "2762846000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:PropertyPlantAndEquipment",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16780": {
   "value": "2825552000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:PropertyPlantAndEquipment",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16790": {
   "value": "426584000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:LandAndBuildings",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16795": {
   "value": "415415000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:LandAndBuildings",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16805": {
   "value": "1944209000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:PlantMachineryAndEquipment",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16810": {
   "value": "1835423000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:PlantMachineryAndEquipment",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16820": {
   "value": "55051000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:FurnitureAndVehicles",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16825": {
   "value": "53525000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:FurnitureAndVehicles",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16835": {
   "value": "7009000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherPropertyPlantAndEquipment",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16840": {
   "value": "4736000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherPropertyPlantAndEquipment",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16848": {
   "value": "329992000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ConstructionInProgress",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16852": {
   "value": "516454000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ConstructionInProgress",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16862": {
   "value": "1267150000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:InvestmentProperty",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16866": {
   "value": "1414057000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:InvestmentProperty",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16880": {
   "value": "1647196000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:InvestmentAccountedForUsingEquityMethod",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16884": {
   "value": "1456070000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:InvestmentAccountedForUsingEquityMethod",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16899": {
   "value": "336038000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentFinancialAssets",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16905": {
   "value": "260413000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentFinancialAssets",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16919": {
   "value": "177351000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentFinancialAssetsAtFairValueThroughProfitOrLoss",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16924": {
   "value": "131391000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentFinancialAssetsAtFairValueThroughProfitOrLoss",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16932": {
   "value": "158687000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:NonCurrentReceivablesAndWarranties",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16936": {
   "value": "129022000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:NonCurrentReceivablesAndWarranties",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16949": {
   "value": "1816000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentDerivativeFinancialAssets",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16954": {
   "value": "3279000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentDerivativeFinancialAssets",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16963": {
   "value": "150279000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DeferredTaxAssets",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16968": {
   "value": "140439000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DeferredTaxAssets",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16983": {
   "value": "4659360000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:NonCurrentLoansAndAdvancesToBanksAndNonCurrentLoansAndAdvancesToCustomers",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16987": {
   "value": "4379362000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:NonCurrentLoansAndAdvancesToBanksAndNonCurrentLoansAndAdvancesToCustomers",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f16998": {
   "value": "4634354000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:NonCurrentLoansAndAdvancesToCustomers",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17002": {
   "value": "4327706000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:NonCurrentLoansAndAdvancesToCustomers",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17014": {
   "value": "25007000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:ChangesInFairValueOfTheHedgedCreditPortfolioNonCurrent",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17019": {
   "value": "51656000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:ChangesInFairValueOfTheHedgedCreditPortfolioNonCurrent",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17032": {
   "value": "5700443000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentAssets",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17037": {
   "value": "5274000000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentAssets",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17046": {
   "value": "376218000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Inventories",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17051": {
   "value": "382451000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Inventories",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17065": {
   "value": "478499000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentReceivablesFromContractsWithCustomers",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17070": {
   "value": "400034000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentReceivablesFromContractsWithCustomers",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17079": {
   "value": "575982000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentFinancialAssets",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17084": {
   "value": "546322000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentFinancialAssets",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17095": {
   "value": "48190000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentFinancialAssetsAtFairValueThroughProfitOrLoss",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17099": {
   "value": "51155000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentFinancialAssetsAtFairValueThroughProfitOrLoss",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17113": {
   "value": "507529000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17117": {
   "value": "474991000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17128": {
   "value": "259000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentInvestmentsInEquityInstrumentsDesignatedAtFairValueThroughOtherComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17132": {
   "value": "173000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentInvestmentsInEquityInstrumentsDesignatedAtFairValueThroughOtherComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17145": {
   "value": "20005000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentFinancialAssetsAtAmortisedCost",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17149": {
   "value": "20003000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentFinancialAssetsAtAmortisedCost",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17160": {
   "value": "4129000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentDerivativeFinancialAssets",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17165": {
   "value": "8399000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentDerivativeFinancialAssets",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17177": {
   "value": "775043000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:TradeAndOtherCurrentReceivables",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17182": {
   "value": "765168000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:TradeAndOtherCurrentReceivables",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17191": {
   "value": "628710000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentTradeReceivables",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17195": {
   "value": "616808000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentTradeReceivables",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17205": {
   "value": "146332000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherCurrentReceivables",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17210": {
   "value": "148361000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherCurrentReceivables",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17222": {
   "value": "42595000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentTaxAssetsCurrent",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17228": {
   "value": "34554000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentTaxAssetsCurrent",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17244": {
   "value": "2477238000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:CurrentLoansAndAdvancesToBanksAndCurrentLoansAndAdvancesToCustomers",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17248": {
   "value": "2242735000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:CurrentLoansAndAdvancesToBanksAndCurrentLoansAndAdvancesToCustomers",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17261": {
   "value": "138014000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:CurrentLoansAndAdvancesToBanks",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17266": {
   "value": "163712000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:CurrentLoansAndAdvancesToBanks",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17278": {
   "value": "1113898000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:CurrentLoansAndAdvancesToCustomers",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17283": {
   "value": "1086948000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:CurrentLoansAndAdvancesToCustomers",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17295": {
   "value": "698000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:ChangesInFairValueOfTheHedgedCreditPortfolioCurrent",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17300": {
   "value": "269000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:ChangesInFairValueOfTheHedgedCreditPortfolioCurrent",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17312": {
   "value": "1224628000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashAndBankBalancesAtCentralBanks",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17317": {
   "value": "991806000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashAndBankBalancesAtCentralBanks",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17330": {
   "value": "883730000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalents",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17336": {
   "value": "842408000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalents",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17351": {
   "value": "87010000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentPrepaymentsAndCurrentAccruedIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17356": {
   "value": "51930000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentPrepaymentsAndCurrentAccruedIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17371": {
   "value": "230679000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17377": {
   "value": "1874000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17387": {
   "value": "17233026000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Assets",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17391": {
   "value": "16228744000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Assets",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17523": {
   "value": "5235002000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17528": {
   "value": "4782169000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17542": {
   "value": "3957228000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:EquityAttributableToOwnersOfParent",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17547": {
   "value": "3562038000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:EquityAttributableToOwnersOfParent",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17558": {
   "value": "113907000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IssuedCapital",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17564": {
   "value": "113907000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IssuedCapital",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17575": {
   "value": "2295000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:ShareCapital",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17580": {
   "value": "2295000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:ShareCapital",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17590": {
   "value": "111612000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:SharePremium",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17595": {
   "value": "111612000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:SharePremium",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17605": {
   "value": "3943016000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:RetainedEarnings",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17610": {
   "value": "3592273000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:RetainedEarnings",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17621": {
   "value": "-66445000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:RevaluationSurplus",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17626": {
   "value": "-112772000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:RevaluationSurplus",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17637": {
   "value": "1620000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBonds",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17641": {
   "value": "6614000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBonds",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17654": {
   "value": "126000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeShares",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17659": {
   "value": "45000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeShares",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17671": {
   "value": "-31050000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ReserveOfCashFlowHedges",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17676": {
   "value": "-46080000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ReserveOfCashFlowHedges",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17688": {
   "value": "-24458000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ReserveOfRemeasurementsOfDefinedBenefitPlans",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17693": {
   "value": "-27236000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ReserveOfRemeasurementsOfDefinedBenefitPlans",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17705": {
   "value": "-12682000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ReserveOfExchangeDifferencesOnTranslation",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17710": {
   "value": "-46115000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ReserveOfExchangeDifferencesOnTranslation",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17722": {
   "value": "33251000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:TreasuryShares",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17727": {
   "value": "31370000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:TreasuryShares",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17741": {
   "value": "1277774000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncontrollingInterests",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17746": {
   "value": "1220131000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncontrollingInterests",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17762": {
   "value": "2537913000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentLiabilities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17767": {
   "value": "3414785000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentLiabilities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17779": {
   "value": "45149000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentProvisions",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17785": {
   "value": "46175000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentProvisions",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17797": {
   "value": "81739000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentRecognisedLiabilitiesDefinedBenefitPlan",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17803": {
   "value": "83250000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentRecognisedLiabilitiesDefinedBenefitPlan",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17815": {
   "value": "161849000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DeferredTaxLiabilities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17821": {
   "value": "159777000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DeferredTaxLiabilities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17833": {
   "value": "1419899000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:LongtermBorrowings",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17838": {
   "value": "1869486000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:LongtermBorrowings",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17846": {
   "value": "1025574000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentPortionOfNoncurrentLoansReceived",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17850": {
   "value": "1395608000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentPortionOfNoncurrentLoansReceived",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17860": {
   "value": "171345000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentPortionOfNoncurrentBondsIssued",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17865": {
   "value": "241934000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentPortionOfNoncurrentBondsIssued",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17875": {
   "value": "61625000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:NonCurrentSubordinatedLiabilities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17880": {
   "value": "44680000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:NonCurrentSubordinatedLiabilities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17890": {
   "value": "149514000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentLeaseLiabilities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17895": {
   "value": "138093000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentLeaseLiabilities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17905": {
   "value": "11841000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentPortionOfOtherNoncurrentBorrowings",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17910": {
   "value": "49170000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentPortionOfOtherNoncurrentBorrowings",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17926": {
   "value": "74034000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentDerivativeFinancialLiabilities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17932": {
   "value": "97324000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentDerivativeFinancialLiabilities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17944": {
   "value": "70598000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherNoncurrentPayables",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17950": {
   "value": "52713000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherNoncurrentPayables",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17977": {
   "value": "684646000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:NonCurrentDebtsToCreditInstitutionsClientsAndSecurities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17983": {
   "value": "1106061000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:NonCurrentDebtsToCreditInstitutionsClientsAndSecurities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17994": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:NonCurrentDepositsFromBanks",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f17998": {
   "value": "298417000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:NonCurrentDepositsFromBanks",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18009": {
   "value": "644663000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentDepositsFromCustomers",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18014": {
   "value": "767701000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentDepositsFromCustomers",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18026": {
   "value": "39983000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentDebtInstrumentsIssued",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18031": {
   "value": "39943000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentDebtInstrumentsIssued",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18044": {
   "value": "9460112000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentLiabilities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18049": {
   "value": "8031790000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentLiabilities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18060": {
   "value": "35670000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentProvisions",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18066": {
   "value": "38083000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentProvisions",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18078": {
   "value": "305000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentRecognisedLiabilitiesDefinedBenefitPlan",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18083": {
   "value": "342000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentRecognisedLiabilitiesDefinedBenefitPlan",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18094": {
   "value": "961720000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ShorttermBorrowings",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18100": {
   "value": "689864000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ShorttermBorrowings",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18111": {
   "value": "527129000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentLoansReceivedAndCurrentPortionOfNoncurrentLoansReceived",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18116": {
   "value": "319771000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentLoansReceivedAndCurrentPortionOfNoncurrentLoansReceived",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18126": {
   "value": "74819000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentBondsIssuedAndCurrentPortionOfNoncurrentBondsIssued",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18131": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentBondsIssuedAndCurrentPortionOfNoncurrentBondsIssued",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18140": {
   "value": "33527000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:CurrentSubordinatedLiabilities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18145": {
   "value": "20974000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:CurrentSubordinatedLiabilities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18155": {
   "value": "36198000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentLeaseLiabilities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18160": {
   "value": "33939000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentLeaseLiabilities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18170": {
   "value": "290047000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherCurrentBorrowingsAndCurrentPortionOfOtherNoncurrentBorrowings",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18175": {
   "value": "315181000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherCurrentBorrowingsAndCurrentPortionOfOtherNoncurrentBorrowings",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18189": {
   "value": "16315000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentDerivativeFinancialLiabilities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18195": {
   "value": "8914000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentDerivativeFinancialLiabilities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18213": {
   "value": "341883000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentContractLiabilities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18219": {
   "value": "309192000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentContractLiabilities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18233": {
   "value": "1564689000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:TradeAndOtherCurrentPayables",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18238": {
   "value": "1454021000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:TradeAndOtherCurrentPayables",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18247": {
   "value": "1145112000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:TradeAndOtherCurrentPayablesToTradeSuppliers",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18252": {
   "value": "1092826000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:TradeAndOtherCurrentPayablesToTradeSuppliers",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18261": {
   "value": "101080000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentAdvances",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18266": {
   "value": "60643000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentAdvances",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18275": {
   "value": "220085000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentPayablesOnSocialSecurityAndTaxesOtherThanIncomeTax",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18279": {
   "value": "207031000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentPayablesOnSocialSecurityAndTaxesOtherThanIncomeTax",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18289": {
   "value": "98411000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherCurrentPayables",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18294": {
   "value": "93521000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherCurrentPayables",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18306": {
   "value": "109196000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentTaxLiabilitiesCurrent",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18312": {
   "value": "94895000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentTaxLiabilitiesCurrent",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18337": {
   "value": "6354225000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:CurrentDebtsToCreditInstitutionsClientsAndSecurities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18342": {
   "value": "5378292000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:CurrentDebtsToCreditInstitutionsClientsAndSecurities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18354": {
   "value": "425353000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:CurrentDepositsFromBanks",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18359": {
   "value": "28875000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:CurrentDepositsFromBanks",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18371": {
   "value": "5723461000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentDepositsFromCustomers",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18376": {
   "value": "5139401000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentDepositsFromCustomers",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18388": {
   "value": "205412000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentDebtInstrumentsIssued",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18393": {
   "value": "210016000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentDebtInstrumentsIssued",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18406": {
   "value": "76108000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AccrualsAndDeferredIncomeClassifiedAsCurrent",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18412": {
   "value": "58187000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AccrualsAndDeferredIncomeClassifiedAsCurrent",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18428": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18432": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18445": {
   "value": "17233026000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:EquityAndLiabilities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18450": {
   "value": "16228744000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:EquityAndLiabilities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18498": {
   "value": "842408000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalents",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18504": {
   "value": "887985000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalents",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18514": {
   "value": "357130000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromOperatingActivities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18518": {
   "value": "224063000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromOperatingActivities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18527": {
   "value": "-34699000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:ReclassificationProfitLossOnDisposalOfAssetsToCashFlowFromDivestments",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18531": {
   "value": "-90666000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:ReclassificationProfitLossOnDisposalOfAssetsToCashFlowFromDivestments",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18539": {
   "value": "112496000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DividendsReceivedClassifiedAsOperatingActivities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18543": {
   "value": "38042000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DividendsReceivedClassifiedAsOperatingActivities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18553": {
   "value": "548000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:OtherNonOperatingIncomeExpense",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18557": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:OtherNonOperatingIncomeExpense",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18564": {
   "value": "78797000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxesPaidRefundClassifiedAsOperatingActivities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18568": {
   "value": "70441000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxesPaidRefundClassifiedAsOperatingActivities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18584": {
   "value": "350553000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForDepreciationExpense",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18588": {
   "value": "350772000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForDepreciationExpense",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18595": {
   "value": "45861000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18599": {
   "value": "9652000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18606": {
   "value": "4896000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForSharebasedPayments",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18610": {
   "value": "-2566000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForSharebasedPayments",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18619": {
   "value": "34048000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:AdjustmentsForGainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLossAndGainsLossesOnFairValueAdjustmentInvestmentProperty",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18623": {
   "value": "-3805000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:AdjustmentsForGainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLossAndGainsLossesOnFairValueAdjustmentInvestmentProperty",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18631": {
   "value": "-4268000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForProvisions",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18635": {
   "value": "2142000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForProvisions",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18642": {
   "value": "1197000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherAdjustmentsForNoncashItems",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18647": {
   "value": "3711000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherAdjustmentsForNoncashItems",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18654": {
   "value": "720869000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18659": {
   "value": "468514000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18667": {
   "value": "-60876000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseInWorkingCapital",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18672": {
   "value": "-118570000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseInWorkingCapital",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18683": {
   "value": "18796000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForDecreaseIncreaseInInventories",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18688": {
   "value": "68001000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForDecreaseIncreaseInInventories",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18698": {
   "value": "-62748000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18702": {
   "value": "97678000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18713": {
   "value": "-538081000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:AdjustmentsForDecreaseIncreaseInOtherOperatingReceivablesCreditInstitutionsAndClientsBankingOperations",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18717": {
   "value": "-746754000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:AdjustmentsForDecreaseIncreaseInOtherOperatingReceivablesCreditInstitutionsAndClientsBankingOperations",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18724": {
   "value": "109076000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:AdjustmentsForIncreaseDecreaseInOtherOperatingPayablesOtherThanBorrowings",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18728": {
   "value": "-85915000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:AdjustmentsForIncreaseDecreaseInOtherOperatingPayablesOtherThanBorrowings",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18739": {
   "value": "555645000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:AdjustmentsForIncreaseDecreaseInOtherOperatingPayablesToCreditInstitutionsClientsAndSecuritiesBankingOperations",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18743": {
   "value": "769629000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:AdjustmentsForIncreaseDecreaseInOtherOperatingPayablesToCreditInstitutionsClientsAndSecuritiesBankingOperations",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18752": {
   "value": "-21812000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherAdjustmentsToReconcileProfitLoss",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18756": {
   "value": "15931000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherAdjustmentsToReconcileProfitLoss",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18764": {
   "value": "781745000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInOperatingActivities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18768": {
   "value": "587084000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInOperatingActivities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18776": {
   "value": "637527000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:PurchasesClassifiedAsInvestingActivities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18780": {
   "value": "780577000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:PurchasesClassifiedAsInvestingActivities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18789": {
   "value": "319018000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:PurchaseOfPropertyPlantAndEquipmentAndIntangibleAssetsOtherThanGoodwill",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18793": {
   "value": "236598000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:PurchaseOfPropertyPlantAndEquipmentAndIntangibleAssetsOtherThanGoodwill",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18801": {
   "value": "36479000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:PurchaseOfInvestmentProperty",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18805": {
   "value": "46388000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:PurchaseOfInvestmentProperty",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18813": {
   "value": "66523000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:AcquisitionOfFinancialFixedAssetsBusinessCombinationsIncluded",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18817": {
   "value": "240476000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:AcquisitionOfFinancialFixedAssetsBusinessCombinationsIncluded",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18824": {
   "value": "-1187000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:CashAcquiredThroughBusinessCombinationsClassifiedAsInvestingActivities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18828": {
   "value": "-2274000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:CashAcquiredThroughBusinessCombinationsClassifiedAsInvestingActivities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18836": {
   "value": "20059000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:InvestmentsInFinancialReceivables",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18840": {
   "value": "15849000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:InvestmentsInFinancialReceivables",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18847": {
   "value": "196635000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:PurchaseOfInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18851": {
   "value": "243539000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:PurchaseOfInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18860": {
   "value": "266205000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:ProceedsClassifiedAsInvestingActivities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18865": {
   "value": "385295000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:ProceedsClassifiedAsInvestingActivities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18872": {
   "value": "34687000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:ProceedsFromDisposalsOfPropertyPlantAndEquipmentAndIntangibleAssetsOtherThanGoodwill",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18876": {
   "value": "21071000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:ProceedsFromDisposalsOfPropertyPlantAndEquipmentAndIntangibleAssetsOtherThanGoodwill",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18885": {
   "value": "26987000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProceedsFromSalesOfInvestmentProperty",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18889": {
   "value": "35404000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProceedsFromSalesOfInvestmentProperty",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18897": {
   "value": "28169000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:DisposalOfFinancialFixedAssetsBusinessDisposalsIncluded",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18901": {
   "value": "141357000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:DisposalOfFinancialFixedAssetsBusinessDisposalsIncluded",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18911": {
   "value": "-517000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:CashDisposedOfThroughBusinessDisposals",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18914": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:CashDisposedOfThroughBusinessDisposals",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18922": {
   "value": "13192000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:DisposalOfFinancialReceivables",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18926": {
   "value": "10240000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:DisposalOfFinancialReceivables",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18933": {
   "value": "163687000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProceedsFromSalesOfInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18937": {
   "value": "177223000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProceedsFromSalesOfInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18947": {
   "value": "-371322000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInInvestingActivities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18951": {
   "value": "-395282000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInInvestingActivities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18965": {
   "value": "8441000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:DividendsReceivedClassifiedAsFinancingActivities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18969": {
   "value": "7838000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:DividendsReceivedClassifiedAsFinancingActivities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18977": {
   "value": "11941000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:InterestReceivedClassifiedAsFinancingActivities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18982": {
   "value": "11654000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:InterestReceivedClassifiedAsFinancingActivities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18990": {
   "value": "32651000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:InterestPaidClassifiedAsFinancingActivities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f18994": {
   "value": "39313000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:InterestPaidClassifiedAsFinancingActivities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f19003": {
   "value": "-13343000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f19007": {
   "value": "-54864000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f19018": {
   "value": "-3132000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:DecreaseIncreaseOfTreasuryShares",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f19022": {
   "value": "-1635000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:DecreaseIncreaseOfTreasuryShares",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f19028": {
   "value": "218432000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f19032": {
   "value": "436630000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f19041": {
   "value": "447831000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f19045": {
   "value": "460145000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f19053": {
   "value": "1174000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:ProceedsFromChangesInOwnershipInterestsInSubsidiariesAndPaymentsFromChangesInOwnershipInterestsInSubsidiaries",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f19057": {
   "value": "-17830000",
   "decimals": -3,
   "dimensions": {
    "concept": "ACK:ProceedsFromChangesInOwnershipInterestsInSubsidiariesAndPaymentsFromChangesInOwnershipInterestsInSubsidiaries",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f19065": {
   "value": "77890000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaidToEquityHoldersOfParentClassifiedAsFinancingActivities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f19069": {
   "value": "76813000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaidToEquityHoldersOfParentClassifiedAsFinancingActivities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f19078": {
   "value": "35649000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaidToNoncontrollingInterestsClassifiedAsFinancingActivities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f19082": {
   "value": "36234000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaidToNoncontrollingInterestsClassifiedAsFinancingActivities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f19091": {
   "value": "-370508000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f19095": {
   "value": "-230712000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f19111": {
   "value": "39915000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f19118": {
   "value": "-38910000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f19125": {
   "value": "1406000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f19131": {
   "value": "-6667000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f19148": {
   "value": "883730000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalents",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f19154": {
   "value": "842408000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalents",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f19270": {
   "value": "113907000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ACK:IssuedCapitalAndSharePremiumMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19273": {
   "value": "3439322000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19276": {
   "value": "3469000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ACK:ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBondsMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19280": {
   "value": "41000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ACK:ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeSharesMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19284": {
   "value": "-43889000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfCashFlowHedgesMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19289": {
   "value": "-23019000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfRemeasurementsOfDefinedBenefitPlansMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19293": {
   "value": "-1074000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19297": {
   "value": "-32648000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19300": {
   "value": "3456109000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19303": {
   "value": "1225725000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19307": {
   "value": "4681834000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f19315": {
   "value": "229791000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19331": {
   "value": "229791000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19335": {
   "value": "47823000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19339": {
   "value": "277614000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f19349": {
   "value": "3145000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ACK:ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBondsMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19353": {
   "value": "4000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ACK:ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeSharesMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19356": {
   "value": "-2191000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfCashFlowHedgesMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19360": {
   "value": "-4217000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfRemeasurementsOfDefinedBenefitPlansMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19364": {
   "value": "-45041000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19371": {
   "value": "-48300000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19375": {
   "value": "3918000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19379": {
   "value": "-44382000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f19388": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ACK:IssuedCapitalAndSharePremiumMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19392": {
   "value": "229791000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19396": {
   "value": "3145000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ACK:ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBondsMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19400": {
   "value": "4000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ACK:ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeSharesMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19403": {
   "value": "-2191000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfCashFlowHedgesMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19408": {
   "value": "-4217000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfRemeasurementsOfDefinedBenefitPlansMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19412": {
   "value": "-45041000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19416": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19420": {
   "value": "181491000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19424": {
   "value": "51741000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19428": {
   "value": "233232000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f19436": {
   "value": "76813000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DividendsRecognisedAsDistributionsToOwnersOfParentRelatingToPriorYears",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19446": {
   "value": "76813000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DividendsRecognisedAsDistributionsToOwnersOfParentRelatingToPriorYears",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19450": {
   "value": "36234000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DividendsRecognisedAsDistributionsToOwnersOfParentRelatingToPriorYears",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19454": {
   "value": "113047000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DividendsRecognisedAsDistributionsToOwnersOfParentRelatingToPriorYears",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f19475": {
   "value": "1278000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTreasuryShareTransactions",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19479": {
   "value": "1278000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTreasuryShareTransactions",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19485": {
   "value": "1278000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTreasuryShareTransactions",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f19499": {
   "value": "-27000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesEquity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19509": {
   "value": "-27000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesEquity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19513": {
   "value": "-21100000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesEquity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19517": {
   "value": "-21128000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesEquity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f19524": {
   "value": "113907000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ACK:IssuedCapitalAndSharePremiumMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19527": {
   "value": "3592273000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19530": {
   "value": "6614000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ACK:ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBondsMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19534": {
   "value": "45000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ACK:ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeSharesMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19538": {
   "value": "-46080000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfCashFlowHedgesMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19542": {
   "value": "-27236000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfRemeasurementsOfDefinedBenefitPlansMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19546": {
   "value": "-46115000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19551": {
   "value": "-31370000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19555": {
   "value": "3562038000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19559": {
   "value": "1220131000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19562": {
   "value": "4782169000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f19594": {
   "value": "113907000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ACK:IssuedCapitalAndSharePremiumMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19599": {
   "value": "3592273000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19604": {
   "value": "6614000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ACK:ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBondsMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19610": {
   "value": "45000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ACK:ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeSharesMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19615": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis": "ifrs-full:IncreaseDecreaseDueToChangesInAccountingPolicyRequiredByIFRSsMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19617": {
   "value": "-46080000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfCashFlowHedgesMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19622": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis": "ifrs-full:IncreaseDecreaseDueToChangesInAccountingPolicyRequiredByIFRSsMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19624": {
   "value": "-27236000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfRemeasurementsOfDefinedBenefitPlansMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19629": {
   "value": "-46115000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19634": {
   "value": "-31370000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19640": {
   "value": "3562038000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19646": {
   "value": "1220131000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19651": {
   "value": "4782169000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f19661": {
   "value": "406814000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19679": {
   "value": "406814000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19685": {
   "value": "105246000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19691": {
   "value": "512060000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f19705": {
   "value": "-4994000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ACK:ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBondsMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19710": {
   "value": "81000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ACK:ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeSharesMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19716": {
   "value": "15030000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfCashFlowHedgesMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19722": {
   "value": "2778000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfRemeasurementsOfDefinedBenefitPlansMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19728": {
   "value": "33432000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19736": {
   "value": "46327000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19742": {
   "value": "20735000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19748": {
   "value": "67061000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f19759": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ACK:IssuedCapitalAndSharePremiumMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19764": {
   "value": "406814000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19768": {
   "value": "-4994000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ACK:ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBondsMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19774": {
   "value": "81000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ACK:ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeSharesMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19778": {
   "value": "15030000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfCashFlowHedgesMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19782": {
   "value": "2778000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfRemeasurementsOfDefinedBenefitPlansMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19787": {
   "value": "33432000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19792": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19797": {
   "value": "453141000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19802": {
   "value": "125981000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19807": {
   "value": "579122000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f19815": {
   "value": "77890000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DividendsRecognisedAsDistributionsToOwnersOfParentRelatingToPriorYears",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19826": {
   "value": "77890000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DividendsRecognisedAsDistributionsToOwnersOfParentRelatingToPriorYears",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19831": {
   "value": "34682000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DividendsRecognisedAsDistributionsToOwnersOfParentRelatingToPriorYears",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19836": {
   "value": "112572000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DividendsRecognisedAsDistributionsToOwnersOfParentRelatingToPriorYears",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f19859": {
   "value": "-1881000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTreasuryShareTransactions",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19864": {
   "value": "-1881000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTreasuryShareTransactions",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19871": {
   "value": "-1881000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTreasuryShareTransactions",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f19884": {
   "value": "21820000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesEquity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19894": {
   "value": "21820000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesEquity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19898": {
   "value": "-33656000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesEquity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19902": {
   "value": "-11836000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesEquity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "f19911": {
   "value": "113907000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ACK:IssuedCapitalAndSharePremiumMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19914": {
   "value": "3943016000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19917": {
   "value": "1620000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ACK:ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBondsMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19921": {
   "value": "126000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ACK:ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeSharesMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19925": {
   "value": "-31050000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfCashFlowHedgesMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19929": {
   "value": "-24458000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfRemeasurementsOfDefinedBenefitPlansMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19932": {
   "value": "-12682000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19937": {
   "value": "-33251000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19940": {
   "value": "3957228000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19943": {
   "value": "1277774000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:EUR"
   }
  },
  "f19946": {
   "value": "5235002000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:EUR"
   }
  },
  "pp-value-1": {
   "value": "Ackermans & van Haaren ",
   "dimensions": {
    "concept": "ifrs-full:NameOfReportingEntityOrOtherMeansOfIdentification",
    "language": "en",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  },
  "pp-value-2": {
   "value": "Belgium ",
   "dimensions": {
    "concept": "ifrs-full:DomicileOfEntity",
    "language": "en",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  },
  "pp-value-3": {
   "value": "Naamloze vennootschap ",
   "dimensions": {
    "concept": "ifrs-full:LegalFormOfEntity",
    "language": "en",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  },
  "pp-value-4": {
   "value": "Belgium ",
   "dimensions": {
    "concept": "ifrs-full:CountryOfIncorporation",
    "language": "en",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  },
  "pp-value-5": {
   "value": "2000 Antwerp, Begijnenvest 113 ",
   "dimensions": {
    "concept": "ifrs-full:AddressOfRegisteredOfficeOfEntity",
    "language": "en",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  },
  "pp-value-6": {
   "value": "Worldwide ",
   "dimensions": {
    "concept": "ifrs-full:PrincipalPlaceOfBusiness",
    "language": "en",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  },
  "pp-value-7": {
   "value": "Industrial Group ",
   "dimensions": {
    "concept": "ifrs-full:DescriptionOfNatureOfEntitysOperationsAndPrincipalActivities",
    "language": "en",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  },
  "pp-value-8": {
   "value": "Ackermans & van Haaren ",
   "dimensions": {
    "concept": "ifrs-full:NameOfParentEntity",
    "language": "en",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  },
  "pp-value-9": {
   "value": "Ackermans & van Haaren ",
   "dimensions": {
    "concept": "ifrs-full:NameOfUltimateParentOfGroup",
    "language": "en",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  },
  "pp-value-10": {
   "value": "N/A ",
   "dimensions": {
    "concept": "ifrs-full:ExplanationOfChangeInNameOfReportingEntityOrOtherMeansOfIdentificationFromEndOfPrecedingReportingPeriod",
    "language": "en",
    "entity": "scheme:5493005E2GHATS0Z6J59",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  }
 }
}