{
 "documentInfo": {
  "documentType": "https://xbrl.org/2021/xbrl-json",
  "features": {
   "xbrl:canonicalValues": true
  },
  "namespaces": {
   "bbbiotech": "https://bbbiotech.ch/xbrl/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": [
   "https://bbbiotech.ch/xbrl/2021-12-31/391200MBZQNPFHIVKO34-2021-12-31.xsd"
  ]
 },
 "facts": {
  "id-NameOfReportingEntityOrOtherMeansOfIdentification": {
   "value": "BB Biotech AG",
   "dimensions": {
    "concept": "ifrs-full:NameOfReportingEntityOrOtherMeansOfIdentification",
    "language": "en",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  },
  "id-NameOfParentEntity": {
   "value": "BB Biotech AG",
   "dimensions": {
    "concept": "ifrs-full:NameOfParentEntity",
    "language": "en",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  },
  "id-NameOfUltimateParentOfGroup": {
   "value": "BB Biotech AG",
   "dimensions": {
    "concept": "ifrs-full:NameOfUltimateParentOfGroup",
    "language": "en",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  },
  "id-LegalFormOfEntity": {
   "value": "AG",
   "dimensions": {
    "concept": "ifrs-full:LegalFormOfEntity",
    "language": "en",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  },
  "f301": {
   "value": "2835000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalents",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f304": {
   "value": "6816000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalents",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f311": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "bbbiotech:ReceivablesFromBrokers",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f314": {
   "value": "1521000",
   "decimals": -3,
   "dimensions": {
    "concept": "bbbiotech:ReceivablesFromBrokers",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f321": {
   "value": "3641112000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentFinancialAssetsAtFairValueThroughProfitOrLoss",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f324": {
   "value": "3954659000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentFinancialAssetsAtFairValueThroughProfitOrLoss",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f331": {
   "value": "135000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherCurrentNonfinancialAssets",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f334": {
   "value": "139000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherCurrentNonfinancialAssets",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f341": {
   "value": "3644082000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentAssets",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f344": {
   "value": "3963135000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentAssets",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f351": {
   "value": "3644082000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Assets",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f354": {
   "value": "3963135000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Assets",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f377": {
   "value": "355000000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:SecuredBankLoansReceived",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f380": {
   "value": "63000000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:SecuredBankLoansReceived",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f387": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "bbbiotech:PayablesToBrokers",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f390": {
   "value": "6576000",
   "decimals": -3,
   "dimensions": {
    "concept": "bbbiotech:PayablesToBrokers",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f397": {
   "value": "5431000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherCurrentLiabilities",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f400": {
   "value": "5709000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherCurrentLiabilities",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f407": {
   "value": "158000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentTaxLiabilitiesCurrent",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f410": {
   "value": "303000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentTaxLiabilitiesCurrent",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f417": {
   "value": "360589000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentLiabilities",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f420": {
   "value": "75588000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CurrentLiabilities",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f427": {
   "value": "360589000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Liabilities",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f430": {
   "value": "75588000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Liabilities",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f453": {
   "value": "11080000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IssuedCapital",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f456": {
   "value": "11080000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IssuedCapital",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f463": {
   "value": "9205000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:TreasuryShares",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f466": {
   "value": "8241000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:TreasuryShares",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f473": {
   "value": "3281618000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:RetainedEarnings",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f476": {
   "value": "3884708000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:RetainedEarnings",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f483": {
   "value": "3283493000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f486": {
   "value": "3887547000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f493": {
   "value": "3644082000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:EquityAndLiabilities",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f496": {
   "value": "3963135000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:EquityAndLiabilities",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f511": {
   "value": "59.4",
   "decimals": 2,
   "dimensions": {
    "concept": "bbbiotech:NetAssetValuePerShare",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:CHF/xbrli:shares"
   }
  },
  "f514": {
   "value": "70.3",
   "decimals": 2,
   "dimensions": {
    "concept": "bbbiotech:NetAssetValuePerShare",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:CHF/xbrli:shares"
   }
  },
  "f547": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "bbbiotech:NetGainsFromSecurities",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f550": {
   "value": "741511000",
   "decimals": -3,
   "dimensions": {
    "concept": "bbbiotech:NetGainsFromSecurities",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f557": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:FinanceIncome",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f560": {
   "value": "7000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:FinanceIncome",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f567": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:RevenueFromDividends",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f570": {
   "value": "243000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:RevenueFromDividends",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f577": {
   "value": "4000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherIncome",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f580": {
   "value": "23000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherIncome",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f587": {
   "value": "4000",
   "decimals": -3,
   "dimensions": {
    "concept": "bbbiotech:OperatingIncome",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f590": {
   "value": "741784000",
   "decimals": -3,
   "dimensions": {
    "concept": "bbbiotech:OperatingIncome",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f613": {
   "value": "343595000",
   "decimals": -3,
   "dimensions": {
    "concept": "bbbiotech:NetLossesFromSecurities",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f616": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "bbbiotech:NetLossesFromSecurities",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f623": {
   "value": "986000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:FinanceCosts",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f626": {
   "value": "883000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:FinanceCosts",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f633": {
   "value": "962000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NetForeignExchangeLoss",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f636": {
   "value": "1857000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:NetForeignExchangeLoss",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f643": {
   "value": "52595000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdministrativeExpense",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f646": {
   "value": "41755000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:AdministrativeExpense",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f653": {
   "value": "6607000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherExpenseByFunction",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f656": {
   "value": "6040000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:OtherExpenseByFunction",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f663": {
   "value": "404745000",
   "decimals": -3,
   "dimensions": {
    "concept": "bbbiotech:OperatingExpenses",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f666": {
   "value": "50535000",
   "decimals": -3,
   "dimensions": {
    "concept": "bbbiotech:OperatingExpenses",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f673": {
   "value": "-404741000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossBeforeTax",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f676": {
   "value": "691249000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossBeforeTax",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f691": {
   "value": "67000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxExpenseContinuingOperations",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f694": {
   "value": "75000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxExpenseContinuingOperations",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f701": {
   "value": "-404808000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f704": {
   "value": "691174000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f719": {
   "value": "-404808000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f722": {
   "value": "691174000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f737": {
   "value": "-7.31",
   "decimals": 2,
   "dimensions": {
    "concept": "ifrs-full:BasicEarningsLossPerShare",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:CHF/xbrli:shares"
   }
  },
  "f740": {
   "value": "12.48",
   "decimals": 2,
   "dimensions": {
    "concept": "ifrs-full:BasicEarningsLossPerShare",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:CHF/xbrli:shares"
   }
  },
  "f747": {
   "value": "-7.31",
   "decimals": 2,
   "dimensions": {
    "concept": "ifrs-full:DilutedEarningsLossPerShare",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:CHF/xbrli:shares"
   }
  },
  "f750": {
   "value": "12.48",
   "decimals": 2,
   "dimensions": {
    "concept": "ifrs-full:DilutedEarningsLossPerShare",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:CHF/xbrli:shares"
   }
  },
  "f774": {
   "value": "11080000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:CHF"
   }
  },
  "f777": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:CHF"
   }
  },
  "f780": {
   "value": "3381893000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:CHF"
   }
  },
  "f783": {
   "value": "3392973000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f788": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:CHF"
   }
  },
  "f791": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:CHF"
   }
  },
  "f794": {
   "value": "188360000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:CHF"
   }
  },
  "f797": {
   "value": "188360000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f802": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTreasuryShareTransactions",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:CHF"
   }
  },
  "f805": {
   "value": "-8241000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTreasuryShareTransactions",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:CHF"
   }
  },
  "f808": {
   "value": "1000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTreasuryShareTransactions",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:CHF"
   }
  },
  "f811": {
   "value": "-8240000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTreasuryShareTransactions",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f816": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:CHF"
   }
  },
  "f819": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:CHF"
   }
  },
  "f822": {
   "value": "691174000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:CHF"
   }
  },
  "f825": {
   "value": "691174000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f830": {
   "value": "11080000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:CHF"
   }
  },
  "f833": {
   "value": "-8241000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:CHF"
   }
  },
  "f836": {
   "value": "3884708000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:CHF"
   }
  },
  "f839": {
   "value": "3887547000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f864": {
   "value": "11080000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:CHF"
   }
  },
  "f867": {
   "value": "-8241000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:CHF"
   }
  },
  "f870": {
   "value": "3884708000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:CHF"
   }
  },
  "f873": {
   "value": "3887547000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f878": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:CHF"
   }
  },
  "f881": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:CHF"
   }
  },
  "f884": {
   "value": "199440000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:CHF"
   }
  },
  "f887": {
   "value": "199440000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f892": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTreasuryShareTransactions",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:CHF"
   }
  },
  "f895": {
   "value": "-964000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTreasuryShareTransactions",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:CHF"
   }
  },
  "f898": {
   "value": "1158000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTreasuryShareTransactions",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:CHF"
   }
  },
  "f901": {
   "value": "194000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTreasuryShareTransactions",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f906": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:CHF"
   }
  },
  "f909": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:CHF"
   }
  },
  "f912": {
   "value": "-404808000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:CHF"
   }
  },
  "f915": {
   "value": "-404808000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f920": {
   "value": "11080000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:CHF"
   }
  },
  "f923": {
   "value": "-9205000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:CHF"
   }
  },
  "f926": {
   "value": "3281618000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:CHF"
   }
  },
  "f929": {
   "value": "3283493000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f961": {
   "value": "926988000",
   "decimals": -3,
   "dimensions": {
    "concept": "bbbiotech:ProceedsFromSalesOfSecurities",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f964": {
   "value": "1008571000",
   "decimals": -3,
   "dimensions": {
    "concept": "bbbiotech:ProceedsFromSalesOfSecurities",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f971": {
   "value": "962091000",
   "decimals": -3,
   "dimensions": {
    "concept": "bbbiotech:PurchaseOfSecurities",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f974": {
   "value": "699354000",
   "decimals": -3,
   "dimensions": {
    "concept": "bbbiotech:PurchaseOfSecurities",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f981": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DividendsReceivedClassifiedAsOperatingActivities",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f984": {
   "value": "243000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DividendsReceivedClassifiedAsOperatingActivities",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f991": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:InterestReceivedClassifiedAsOperatingActivities",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f994": {
   "value": "7000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:InterestReceivedClassifiedAsOperatingActivities",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f1001": {
   "value": "59545000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:PaymentsToSuppliersForGoodsAndServices",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f1004": {
   "value": "46973000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:PaymentsToSuppliersForGoodsAndServices",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f1011": {
   "value": "139000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxesPaidRefundClassifiedAsOperatingActivities",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f1014": {
   "value": "45000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxesPaidRefundClassifiedAsOperatingActivities",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f1021": {
   "value": "-94787000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInOperatingActivities",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f1024": {
   "value": "262449000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInOperatingActivities",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f1047": {
   "value": "199440000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaidClassifiedAsFinancingActivities",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f1050": {
   "value": "188360000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaidClassifiedAsFinancingActivities",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f1057": {
   "value": "9653000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProceedsFromSaleOrIssueOfTreasuryShares",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f1060": {
   "value": "20000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ProceedsFromSaleOrIssueOfTreasuryShares",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f1067": {
   "value": "9459000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:PaymentsToAcquireOrRedeemEntitysShares",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f1070": {
   "value": "8260000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:PaymentsToAcquireOrRedeemEntitysShares",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f1077": {
   "value": "292000000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInIncreaseDecreaseInCurrentBorrowings",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f1080": {
   "value": "-87000000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInIncreaseDecreaseInCurrentBorrowings",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f1087": {
   "value": "986000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:InterestPaidClassifiedAsFinancingActivities",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f1090": {
   "value": "883000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:InterestPaidClassifiedAsFinancingActivities",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f1097": {
   "value": "91768000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f1100": {
   "value": "-284483000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f1115": {
   "value": "-962000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f1118": {
   "value": "-1857000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f1125": {
   "value": "-3981000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseInCashAndCashEquivalents",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f1128": {
   "value": "-23891000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseInCashAndCashEquivalents",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f1143": {
   "value": "6816000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalents",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f1146": {
   "value": "30707000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalents",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f1161": {
   "value": "2835000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalents",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f1164": {
   "value": "6816000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalents",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "id-DomicileOfEntity": {
   "value": "Schaffhausen",
   "dimensions": {
    "concept": "ifrs-full:DomicileOfEntity",
    "language": "en",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  },
  "id-PrincipalPlaceOfBusiness": {
   "value": "Schaffhausen",
   "dimensions": {
    "concept": "ifrs-full:PrincipalPlaceOfBusiness",
    "language": "en",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  },
  "id-AddressOfRegisteredOfficeOfEntity": {
   "value": "Schwertstrasse 6",
   "dimensions": {
    "concept": "ifrs-full:AddressOfRegisteredOfficeOfEntity",
    "language": "en",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  },
  "id-DescriptionOfNatureOfEntitysOperationsAndPrincipalActivities": {
   "value": "Its principal activity is to invest in companies active in the biotechnology industry for the purpose of capital appreciation.",
   "dimensions": {
    "concept": "ifrs-full:DescriptionOfNatureOfEntitysOperationsAndPrincipalActivities",
    "language": "en",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  },
  "f5137": {
   "value": "11080000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:CHF"
   }
  },
  "f5140": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:CHF"
   }
  },
  "f5143": {
   "value": "3381893000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:CHF"
   }
  },
  "f5146": {
   "value": "3392973000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f5151": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:CHF"
   }
  },
  "f5154": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:CHF"
   }
  },
  "f5157": {
   "value": "188360000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:CHF"
   }
  },
  "f5160": {
   "value": "188360000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f5165": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTreasuryShareTransactions",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:CHF"
   }
  },
  "f5168": {
   "value": "-8241000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTreasuryShareTransactions",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:CHF"
   }
  },
  "f5171": {
   "value": "1000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTreasuryShareTransactions",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:CHF"
   }
  },
  "f5174": {
   "value": "-8240000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTreasuryShareTransactions",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f5179": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:CHF"
   }
  },
  "f5182": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:CHF"
   }
  },
  "f5185": {
   "value": "691174000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:CHF"
   }
  },
  "f5188": {
   "value": "691174000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2020-01-01T00:00:00/2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f5193": {
   "value": "11080000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:CHF"
   }
  },
  "f5196": {
   "value": "-8241000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:CHF"
   }
  },
  "f5199": {
   "value": "3884708000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:CHF"
   }
  },
  "f5202": {
   "value": "3887547000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f5227": {
   "value": "11080000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:CHF"
   }
  },
  "f5230": {
   "value": "-8241000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:CHF"
   }
  },
  "f5233": {
   "value": "3884708000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:CHF"
   }
  },
  "f5236": {
   "value": "3887547000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f5241": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:CHF"
   }
  },
  "f5244": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:CHF"
   }
  },
  "f5247": {
   "value": "199440000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:CHF"
   }
  },
  "f5250": {
   "value": "199440000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f5255": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTreasuryShareTransactions",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:CHF"
   }
  },
  "f5258": {
   "value": "-964000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTreasuryShareTransactions",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:CHF"
   }
  },
  "f5261": {
   "value": "1158000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTreasuryShareTransactions",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:CHF"
   }
  },
  "f5264": {
   "value": "194000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughTreasuryShareTransactions",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f5269": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:CHF"
   }
  },
  "f5272": {
   "value": "0",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:CHF"
   }
  },
  "f5275": {
   "value": "-404808000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:CHF"
   }
  },
  "f5278": {
   "value": "-404808000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "f5283": {
   "value": "11080000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:CHF"
   }
  },
  "f5286": {
   "value": "-9205000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:TreasurySharesMember",
    "unit": "iso4217:CHF"
   }
  },
  "f5289": {
   "value": "3281618000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2022-01-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:CHF"
   }
  },
  "f5292": {
   "value": "3283493000",
   "decimals": -3,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2022-01-01T00:00:00",
    "unit": "iso4217:CHF"
   }
  },
  "id-CountryOfIncorporation": {
   "value": "Switzerland",
   "dimensions": {
    "concept": "ifrs-full:CountryOfIncorporation",
    "language": "en",
    "entity": "scheme:391200MBZQNPFHIVKO34",
    "period": "2021-01-01T00:00:00/2022-01-01T00:00:00"
   }
  }
 }
}