{
 "documentInfo": {
  "documentType": "https://xbrl.org/2021/xbrl-json",
  "features": {
   "xbrl:canonicalValues": true
  },
  "namespaces": {
   "ifrs-full": "http://xbrl.ifrs.org/taxonomy/2020-03-16/ifrs-full",
   "iso4217": "http://www.xbrl.org/2003/iso4217",
   "nnit": "http://nnit.com",
   "scheme": "http://standards.iso.org/iso/17442",
   "xbrl": "https://xbrl.org/2021",
   "xbrli": "http://www.xbrl.org/2003/instance"
  },
  "taxonomy": [
   "http://nnit.com/nnit-2021-12-31.xsd"
  ]
 },
 "facts": {
  "fact1001": {
   "value": "NNIT A/S",
   "dimensions": {
    "concept": "ifrs-full:NameOfReportingEntityOrOtherMeansOfIdentification",
    "language": "en",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  },
  "fact1000": {
   "value": "Oestmarken 3A, DK-2860 Soeborg",
   "dimensions": {
    "concept": "ifrs-full:AddressOfRegisteredOfficeOfEntity",
    "language": "en",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  },
  "fact1002": {
   "value": "NNIT is a leading provider of digital transformation services and solutions to international life sciences companies and for the Danish private and public sector.",
   "dimensions": {
    "concept": "ifrs-full:DescriptionOfNatureOfEntitysOperationsAndPrincipalActivities",
    "language": "en",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  },
  "fact1005": {
   "value": "Denmark",
   "dimensions": {
    "concept": "ifrs-full:CountryOfIncorporation",
    "language": "en",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  },
  "fact1006": {
   "value": "Denmark",
   "dimensions": {
    "concept": "ifrs-full:DomicileOfEntity",
    "language": "en",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  },
  "fact1020": {
   "value": "-7000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1007": {
   "value": "2877000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Revenue",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1008": {
   "value": "2533000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CostOfSales",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1009": {
   "value": "344000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:GrossProfit",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2233": {
   "value": "2830000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Revenue",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2234": {
   "value": "2443000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CostOfSales",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2235": {
   "value": "387000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:GrossProfit",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2246": {
   "value": "76000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1010": {
   "value": "122000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:SalesAndMarketingExpense",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1011": {
   "value": "80000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:AdministrativeExpense",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1012": {
   "value": "142000000",
   "decimals": -6,
   "dimensions": {
    "concept": "nnit:OperatingProfitBeforeSpecialItems",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2236": {
   "value": "127000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:SalesAndMarketingExpense",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2237": {
   "value": "95000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:AdministrativeExpense",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2238": {
   "value": "165000000",
   "decimals": -6,
   "dimensions": {
    "concept": "nnit:OperatingProfitBeforeSpecialItems",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1025": {
   "value": "3000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2251": {
   "value": "-5000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1013": {
   "value": "153000000",
   "decimals": -6,
   "dimensions": {
    "concept": "nnit:NnitSpecialItemsExpense",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1014": {
   "value": "-11000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromOperatingActivities",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2239": {
   "value": "43000000",
   "decimals": -6,
   "dimensions": {
    "concept": "nnit:NnitSpecialItemsExpense",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2240": {
   "value": "122000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromOperatingActivities",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1026": {
   "value": "42000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationBeforeTax",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1027": {
   "value": "5000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxRelatingToExchangeDifferencesOnTranslationOfOtherComprehensiveIncome",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2252": {
   "value": "-25000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationBeforeTax",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2253": {
   "value": "-4000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxRelatingToExchangeDifferencesOnTranslationOfOtherComprehensiveIncome",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1015": {
   "value": "15000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:FinanceIncome",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1016": {
   "value": "29000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:FinanceCosts",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1017": {
   "value": "-25000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossBeforeTax",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2241": {
   "value": "11000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:FinanceIncome",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2242": {
   "value": "31000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:FinanceCosts",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2243": {
   "value": "102000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossBeforeTax",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1028": {
   "value": "-11000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1029": {
   "value": "3000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1030": {
   "value": "14000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeBeforeTaxCashFlowHedges",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2254": {
   "value": "-10000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2255": {
   "value": "-22000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2256": {
   "value": "-12000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeBeforeTaxCashFlowHedges",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1018": {
   "value": "-18000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxExpenseContinuingOperations",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1019": {
   "value": "-7000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2244": {
   "value": "26000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxExpenseContinuingOperations",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2245": {
   "value": "76000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1031": {
   "value": "3000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncome",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1032": {
   "value": "51000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncome",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2257": {
   "value": "-2000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncome",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2258": {
   "value": "-36000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncome",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1023": {
   "value": "-0.3",
   "decimals": 2,
   "dimensions": {
    "concept": "ifrs-full:BasicEarningsLossPerShare",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK/xbrli:shares"
   }
  },
  "fact1024": {
   "value": "-0.3",
   "decimals": 2,
   "dimensions": {
    "concept": "ifrs-full:DilutedEarningsLossPerShare",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK/xbrli:shares"
   }
  },
  "fact2249": {
   "value": "3.07",
   "decimals": 2,
   "dimensions": {
    "concept": "ifrs-full:BasicEarningsLossPerShare",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK/xbrli:shares"
   }
  },
  "fact2250": {
   "value": "3.04",
   "decimals": 2,
   "dimensions": {
    "concept": "ifrs-full:DilutedEarningsLossPerShare",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK/xbrli:shares"
   }
  },
  "fact1034": {
   "value": "44000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2260": {
   "value": "40000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2282": {
   "value": "945000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IntangibleAssetsAndGoodwill",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2283": {
   "value": "483000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:PropertyPlantAndEquipment",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2284": {
   "value": "173000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:RightofuseAssets",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2285": {
   "value": "39000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentContractAssets",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2286": {
   "value": "13000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:DeferredTaxAssets",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2287": {
   "value": "34000000",
   "decimals": -6,
   "dimensions": {
    "concept": "nnit:NonCurrentDepositsForRent",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2324": {
   "value": "781000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IntangibleAssetsAndGoodwill",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2325": {
   "value": "552000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:PropertyPlantAndEquipment",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2326": {
   "value": "227000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:RightofuseAssets",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2327": {
   "value": "75000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentContractAssets",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2328": {
   "value": "32000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:DeferredTaxAssets",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2329": {
   "value": "33000000",
   "decimals": -6,
   "dimensions": {
    "concept": "nnit:NonCurrentDepositsForRent",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2301": {
   "value": "250000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IssuedCapital",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2302": {
   "value": "2000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:TreasuryShares",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2303": {
   "value": "863000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:RetainedEarnings",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2304": {
   "value": "31000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherReserves",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2343": {
   "value": "250000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IssuedCapital",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2344": {
   "value": "3000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:TreasuryShares",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2345": {
   "value": "879000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:RetainedEarnings",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2346": {
   "value": "-17000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherReserves",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2347": {
   "value": "25000000",
   "decimals": -6,
   "dimensions": {
    "concept": "nnit:ProposedDividends",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2348": {
   "value": "1134000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2305": {
   "value": "1142000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2288": {
   "value": "1687000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentAssets",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2330": {
   "value": "1700000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentAssets",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2307": {
   "value": "123000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentLeaseLiabilities",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2308": {
   "value": "18000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentProvisionsForEmployeeBenefits",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2309": {
   "value": "82000000",
   "decimals": -6,
   "dimensions": {
    "concept": "nnit:NonCurrentContingentConsideration",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2350": {
   "value": "171000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentLeaseLiabilities",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2351": {
   "value": "29000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentProvisionsForEmployeeBenefits",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2352": {
   "value": "112000000",
   "decimals": -6,
   "dimensions": {
    "concept": "nnit:NonCurrentContingentConsideration",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2353": {
   "value": "24000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentProvisions",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2289": {
   "value": "3000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Inventories",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2290": {
   "value": "31000000",
   "decimals": -6,
   "dimensions": {
    "concept": "nnit:TransitionCostCurrent",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2291": {
   "value": "578000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CurrentTradeReceivables",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2292": {
   "value": "107000000",
   "decimals": -6,
   "dimensions": {
    "concept": "nnit:CurrentWorkInProgress",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2293": {
   "value": "11000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherCurrentReceivables",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2294": {
   "value": "101000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CurrentPrepayments",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2295": {
   "value": "36000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CurrentTaxAssetsCurrent",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2296": {
   "value": "13000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CurrentDerivativeFinancialAssets",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2331": {
   "value": "2000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Inventories",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2332": {
   "value": "36000000",
   "decimals": -6,
   "dimensions": {
    "concept": "nnit:TransitionCostCurrent",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2333": {
   "value": "497000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CurrentTradeReceivables",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2334": {
   "value": "145000000",
   "decimals": -6,
   "dimensions": {
    "concept": "nnit:CurrentWorkInProgress",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2335": {
   "value": "21000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherCurrentReceivables",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2336": {
   "value": "87000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CurrentPrepayments",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2337": {
   "value": "30000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CurrentTaxAssetsCurrent",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2338": {
   "value": "1000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CurrentDerivativeFinancialAssets",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2339": {
   "value": "143000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalents",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2341": {
   "value": "962000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CurrentAssets",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2310": {
   "value": "25000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentProvisions",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2311": {
   "value": "40000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentPortionOfNoncurrentLoansReceived",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2354": {
   "value": "21000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentPortionOfNoncurrentLoansReceived",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2312": {
   "value": "496000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentPortionOfOtherNoncurrentBorrowings",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2313": {
   "value": "784000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentLiabilities",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2355": {
   "value": "304000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentPortionOfOtherNoncurrentBorrowings",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2356": {
   "value": "661000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:NoncurrentLiabilities",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2314": {
   "value": "30000000",
   "decimals": -6,
   "dimensions": {
    "concept": "nnit:PrepaymentsReceivedTransitionCost",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2315": {
   "value": "116000000",
   "decimals": -6,
   "dimensions": {
    "concept": "nnit:PrepaymentsReceivedWorkInProgress",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2316": {
   "value": "84000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CurrentLeaseLiabilities",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2317": {
   "value": "86000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:TradeAndOtherCurrentPayablesToTradeSuppliers",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2318": {
   "value": "208000000",
   "decimals": -6,
   "dimensions": {
    "concept": "nnit:EmployeeCostsPayablesCurrent",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2319": {
   "value": "2000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CurrentTaxLiabilitiesCurrent",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2357": {
   "value": "16000000",
   "decimals": -6,
   "dimensions": {
    "concept": "nnit:PrepaymentsReceivedTransitionCost",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2358": {
   "value": "111000000",
   "decimals": -6,
   "dimensions": {
    "concept": "nnit:PrepaymentsReceivedWorkInProgress",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2359": {
   "value": "70000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CurrentLeaseLiabilities",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2360": {
   "value": "108000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:TradeAndOtherCurrentPayablesToTradeSuppliers",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2361": {
   "value": "277000000",
   "decimals": -6,
   "dimensions": {
    "concept": "nnit:EmployeeCostsPayablesCurrent",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2362": {
   "value": "4000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CurrentTaxLiabilitiesCurrent",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2297": {
   "value": "230000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalents",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2299": {
   "value": "1110000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CurrentAssets",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2300": {
   "value": "2797000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Assets",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2342": {
   "value": "2662000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Assets",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2320": {
   "value": "281000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherCurrentLiabilities",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2321": {
   "value": "64000000",
   "decimals": -6,
   "dimensions": {
    "concept": "nnit:CurrentContingentConsideration",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2363": {
   "value": "247000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherCurrentLiabilities",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2364": {
   "value": "5000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CurrentDerivativeFinancialLiabilities",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2365": {
   "value": "28000000",
   "decimals": -6,
   "dimensions": {
    "concept": "nnit:CurrentContingentConsideration",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2366": {
   "value": "1000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CurrentProvisions",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2322": {
   "value": "871000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CurrentLiabilities",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2367": {
   "value": "867000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CurrentLiabilities",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2323": {
   "value": "2797000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:EquityAndLiabilities",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2368": {
   "value": "2662000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:EquityAndLiabilities",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1021": {
   "value": "-7000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2247": {
   "value": "76000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1036": {
   "value": "335000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForReconcileProfitLoss",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1037": {
   "value": "17000000",
   "decimals": -6,
   "dimensions": {
    "concept": "nnit:InterestPaidReceived",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1038": {
   "value": "-4000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxesPaidRefundClassifiedAsOperatingActivities",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2262": {
   "value": "228000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForReconcileProfitLoss",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2263": {
   "value": "16000000",
   "decimals": -6,
   "dimensions": {
    "concept": "nnit:InterestPaidReceived",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2264": {
   "value": "42000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxesPaidRefundClassifiedAsOperatingActivities",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2265": {
   "value": "246000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1039": {
   "value": "315000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1040": {
   "value": "72000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseInWorkingCapital",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2266": {
   "value": "-282000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseInWorkingCapital",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1041": {
   "value": "243000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInOperatingActivities",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2267": {
   "value": "528000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInOperatingActivities",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1042": {
   "value": "34000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1043": {
   "value": "62000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1044": {
   "value": "79000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1045": {
   "value": "34000000",
   "decimals": -6,
   "dimensions": {
    "concept": "nnit:ContingentConsiderationPaymentClassifiedAsInvestingActivities",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1046": {
   "value": "-209000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInInvestingActivities",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2268": {
   "value": "40000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2269": {
   "value": "95000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2270": {
   "value": "188000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2271": {
   "value": "62000000",
   "decimals": -6,
   "dimensions": {
    "concept": "nnit:ContingentConsiderationPaymentClassifiedAsInvestingActivities",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2272": {
   "value": "-385000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInInvestingActivities",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1047": {
   "value": "25000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaidClassifiedAsFinancingActivities",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1048": {
   "value": "8000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:PaymentsToAcquireOrRedeemEntitysShares",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1049": {
   "value": "1000000",
   "decimals": -6,
   "dimensions": {
    "concept": "nnit:PaymentOfDeposit",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1050": {
   "value": "82000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1051": {
   "value": "23000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:RepaymentsOfNoncurrentBorrowings",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1052": {
   "value": "192000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1053": {
   "value": "53000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2273": {
   "value": "98000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaidClassifiedAsFinancingActivities",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2274": {
   "value": "89000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2275": {
   "value": "8000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:RepaymentsOfNoncurrentBorrowings",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2276": {
   "value": "73000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2277": {
   "value": "-122000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1054": {
   "value": "87000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseInCashAndCashEquivalents",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2278": {
   "value": "21000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseInCashAndCashEquivalents",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2369": {
   "value": "143000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalents",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-02T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2371": {
   "value": "122000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalents",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2298": {
   "value": "230000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalents",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2340": {
   "value": "143000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalents",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2375": {
   "value": "879000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-02T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2376": {
   "value": "-18000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-02T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2381": {
   "value": "-7000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2373": {
   "value": "250000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-02T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2374": {
   "value": "-3000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-02T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2377": {
   "value": "-3000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-02T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfCashFlowHedgesMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2378": {
   "value": "4000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-02T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "nnit:TaxIncludedInOtherReservesMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2379": {
   "value": "-17000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-02T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:OtherReservesMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2380": {
   "value": "25000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-02T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "nnit:ProposedDividendsMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2370": {
   "value": "1134000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-02T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2388": {
   "value": "42000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncome",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2389": {
   "value": "42000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2390": {
   "value": "14000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncome",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfCashFlowHedgesMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2391": {
   "value": "14000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfCashFlowHedgesMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2392": {
   "value": "-8000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncome",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "nnit:TaxIncludedInOtherReservesMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2393": {
   "value": "-8000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "nnit:TaxIncludedInOtherReservesMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2394": {
   "value": "48000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncome",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:OtherReservesMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2395": {
   "value": "48000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:OtherReservesMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact1022": {
   "value": "-7000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1033": {
   "value": "51000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncome",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1035": {
   "value": "44000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2382": {
   "value": "3000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncome",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2383": {
   "value": "-4000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2384": {
   "value": "11000000",
   "decimals": -6,
   "dimensions": {
    "concept": "nnit:AdjustmentRelatedToPreviousYears",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact1055": {
   "value": "11000000",
   "decimals": -6,
   "dimensions": {
    "concept": "nnit:AdjustmentRelatedToPreviousYears",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2396": {
   "value": "1000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:PurchaseOfTreasuryShares",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2397": {
   "value": "2000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:SaleOrIssueOfTreasuryShares",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2400": {
   "value": "-2000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2385": {
   "value": "7000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:PurchaseOfTreasuryShares",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2386": {
   "value": "-2000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:SaleOrIssueOfTreasuryShares",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2387": {
   "value": "8000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2402": {
   "value": "24000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2403": {
   "value": "11000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfCashFlowHedgesMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2404": {
   "value": "-4000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "nnit:TaxIncludedInOtherReservesMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2405": {
   "value": "31000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:OtherReservesMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact1056": {
   "value": "8000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:PurchaseOfTreasuryShares",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1057": {
   "value": "8000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2398": {
   "value": "25000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "nnit:ProposedDividendsMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact1058": {
   "value": "25000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2306": {
   "value": "1142000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2399": {
   "value": "250000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2401": {
   "value": "863000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2411": {
   "value": "-2000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-02T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "nnit:TaxIncludedInOtherReservesMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2406": {
   "value": "250000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-02T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2407": {
   "value": "-4000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-02T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2408": {
   "value": "860000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-02T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2409": {
   "value": "7000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-02T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2410": {
   "value": "9000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-02T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfCashFlowHedgesMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2412": {
   "value": "14000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-02T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:OtherReservesMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2413": {
   "value": "49000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-02T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "nnit:ProposedDividendsMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2372": {
   "value": "1169000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-02T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2414": {
   "value": "76000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2415": {
   "value": "-5000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncome",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2416": {
   "value": "71000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2425": {
   "value": "6000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncome",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "nnit:TaxIncludedInOtherReservesMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2426": {
   "value": "6000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "nnit:TaxIncludedInOtherReservesMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2248": {
   "value": "76000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2259": {
   "value": "-36000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncome",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2261": {
   "value": "40000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2421": {
   "value": "-25000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncome",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2422": {
   "value": "-25000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2423": {
   "value": "-12000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncome",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfCashFlowHedgesMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2424": {
   "value": "-12000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfCashFlowHedgesMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2427": {
   "value": "-31000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncome",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:OtherReservesMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2428": {
   "value": "-31000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:OtherReservesMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2429": {
   "value": "1000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:SaleOrIssueOfTreasuryShares",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2417": {
   "value": "9000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:SaleOrIssueOfTreasuryShares",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2418": {
   "value": "13000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2419": {
   "value": "49000000",
   "decimals": -6,
   "dimensions": {
    "concept": "nnit:InterimDividend",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2420": {
   "value": "25000000",
   "decimals": -6,
   "dimensions": {
    "concept": "nnit:ProposedDividend",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2435": {
   "value": "879000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2279": {
   "value": "10000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:SaleOrIssueOfTreasuryShares",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2280": {
   "value": "13000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2281": {
   "value": "98000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact2430": {
   "value": "98000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "nnit:ProposedDividendsMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2431": {
   "value": "-49000000",
   "decimals": -6,
   "dimensions": {
    "concept": "nnit:InterimDividend",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "nnit:ProposedDividendsMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2432": {
   "value": "-25000000",
   "decimals": -6,
   "dimensions": {
    "concept": "nnit:ProposedDividend",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "nnit:ProposedDividendsMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2440": {
   "value": "25000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "nnit:ProposedDividendsMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2433": {
   "value": "250000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2434": {
   "value": "-3000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2436": {
   "value": "-18000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2437": {
   "value": "-3000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:ReserveOfCashFlowHedgesMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2438": {
   "value": "4000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "nnit:TaxIncludedInOtherReservesMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2439": {
   "value": "-17000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:OtherReservesMember",
    "unit": "iso4217:DKK"
   }
  },
  "fact2349": {
   "value": "1134000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:DKK"
   }
  },
  "fact1059": {
   "value": "The Life sciences business unit delivers to both the Novo Nordisk Group and other life sciences clients in Den- mark as well as internationally.",
   "dimensions": {
    "concept": "ifrs-full:PrincipalPlaceOfBusiness",
    "language": "en",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  },
  "fact1061": {
   "value": "NNIT A/S is controlled by Novo Holdings A/S, of which the Novo Nordisk Foundation is the ultimate owner.",
   "dimensions": {
    "concept": "ifrs-full:NameOfUltimateParentOfGroup",
    "language": "en",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  },
  "fact1062": {
   "value": "Novo Holdings A/S",
   "dimensions": {
    "concept": "ifrs-full:NameOfParentEntity",
    "language": "en",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  },
  "fact1063": {
   "value": "A/S",
   "dimensions": {
    "concept": "ifrs-full:LegalFormOfEntity",
    "language": "en",
    "entity": "scheme:549300KM8QVF7WR40664",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  }
 }
}