{
 "documentInfo": {
  "documentType": "https://xbrl.org/2021/xbrl-json",
  "features": {
   "xbrl:canonicalValues": true
  },
  "namespaces": {
   "NAT": "https://nab.com.au/taxonomy/2022-09-30",
   "ifrs-full": "http://xbrl.ifrs.org/taxonomy/2021-03-24/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://nab.com.au/taxonomy/2022-09-30/F8SB4JFBSYQFRQEH3Z21-2022-09-30.xsd"
  ]
 },
 "facts": {
  "ixv-9": {
   "value": "The principal activities of the Group during the year were banking services, credit and access card facilities, leasing, housing and general finance, international, investment and private banking and wealth management services, funds management and custodian, trustee and nominee services.",
   "dimensions": {
    "concept": "ifrs-full:DescriptionOfNatureOfEntitysOperationsAndPrincipalActivities",
    "language": "en",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00"
   }
  },
  "ixv-12": {
   "value": "21465000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:InterestRevenueCalculatedUsingEffectiveInterestMethod",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-13": {
   "value": "17148000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:InterestRevenueCalculatedUsingEffectiveInterestMethod",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-14": {
   "value": "913000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:InterestIncomeOnFinancialAssetsDesignatedAtFairValueThroughProfitOrLoss",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-15": {
   "value": "886000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:InterestIncomeOnFinancialAssetsDesignatedAtFairValueThroughProfitOrLoss",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-16": {
   "value": "7538000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:InterestExpense",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-17": {
   "value": "4241000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:InterestExpense",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-18": {
   "value": "14840000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:InterestRevenueExpense",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-19": {
   "value": "13793000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:InterestRevenueExpense",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-20": {
   "value": "3730000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherIncome",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-21": {
   "value": "2936000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherIncome",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-22": {
   "value": "8702000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OperatingExpense",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-23": {
   "value": "7863000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OperatingExpense",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-24": {
   "value": "124000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ImpairmentLossImpairmentGainAndReversalOfImpairmentLossDeterminedInAccordanceWithIFRS9",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-25": {
   "value": "-202000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ImpairmentLossImpairmentGainAndReversalOfImpairmentLossDeterminedInAccordanceWithIFRS9",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-26": {
   "value": "9744000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossBeforeTax",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-27": {
   "value": "9068000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossBeforeTax",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-28": {
   "value": "2684000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxExpenseContinuingOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-29": {
   "value": "2597000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxExpenseContinuingOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-30": {
   "value": "7060000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromContinuingOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-31": {
   "value": "6471000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromContinuingOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-32": {
   "value": "-169000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromDiscontinuedOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-33": {
   "value": "-104000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromDiscontinuedOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-34": {
   "value": "6891000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-35": {
   "value": "6367000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLoss",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-36": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossAttributableToNoncontrollingInterests",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-37": {
   "value": "3000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossAttributableToNoncontrollingInterests",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-38": {
   "value": "6891000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossAttributableToOwnersOfParent",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-39": {
   "value": "6364000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossAttributableToOwnersOfParent",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-40": {
   "value": "2.141",
   "decimals": 3,
   "dimensions": {
    "concept": "ifrs-full:BasicEarningsLossPerShare",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD/xbrli:shares"
   }
  },
  "ixv-41": {
   "value": "1.93",
   "decimals": 3,
   "dimensions": {
    "concept": "ifrs-full:BasicEarningsLossPerShare",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD/xbrli:shares"
   }
  },
  "ixv-42": {
   "value": "2.056",
   "decimals": 3,
   "dimensions": {
    "concept": "ifrs-full:DilutedEarningsLossPerShare",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD/xbrli:shares"
   }
  },
  "ixv-43": {
   "value": "1.852",
   "decimals": 3,
   "dimensions": {
    "concept": "ifrs-full:DilutedEarningsLossPerShare",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD/xbrli:shares"
   }
  },
  "ixv-44": {
   "value": "2.193",
   "decimals": 3,
   "dimensions": {
    "concept": "ifrs-full:BasicEarningsLossPerShareFromContinuingOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD/xbrli:shares"
   }
  },
  "ixv-45": {
   "value": "1.963",
   "decimals": 3,
   "dimensions": {
    "concept": "ifrs-full:BasicEarningsLossPerShareFromContinuingOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD/xbrli:shares"
   }
  },
  "ixv-46": {
   "value": "2.105",
   "decimals": 3,
   "dimensions": {
    "concept": "ifrs-full:DilutedEarningsLossPerShareFromContinuingOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD/xbrli:shares"
   }
  },
  "ixv-47": {
   "value": "1.882",
   "decimals": 3,
   "dimensions": {
    "concept": "ifrs-full:DilutedEarningsLossPerShareFromContinuingOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD/xbrli:shares"
   }
  },
  "ixv-48": {
   "value": "7060000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromContinuingOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-49": {
   "value": "6471000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromContinuingOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-50": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-51": {
   "value": "1000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-52": {
   "value": "149000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeBeforeTaxChangeInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiability",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-53": {
   "value": "-78000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeBeforeTaxChangeInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiability",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-54": {
   "value": "1000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeBeforeTaxGainsLossesOnRevaluation",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-55": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeBeforeTaxGainsLossesOnRevaluation",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-56": {
   "value": "11000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeBeforeTaxGainsLossesFromInvestmentsInEquityInstruments",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-57": {
   "value": "3000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeBeforeTaxGainsLossesFromInvestmentsInEquityInstruments",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-58": {
   "value": "43000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-59": {
   "value": "-22000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-60": {
   "value": "118000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-61": {
   "value": "-52000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-62": {
   "value": "-2510000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeBeforeTaxCashFlowHedges",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-63": {
   "value": "-318000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeBeforeTaxCashFlowHedges",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-64": {
   "value": "488000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:OtherComprehensiveIncomeBeforeTaxCostOfHedging",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-65": {
   "value": "185000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:OtherComprehensiveIncomeBeforeTaxCostOfHedging",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-66": {
   "value": "-776000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-67": {
   "value": "301000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-68": {
   "value": "29000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ReclassificationAdjustmentsOnExchangeDifferencesOnTranslationBeforeTax",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-69": {
   "value": "14000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ReclassificationAdjustmentsOnExchangeDifferencesOnTranslationBeforeTax",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-70": {
   "value": "-125000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:GainsLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTax",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-71": {
   "value": "377000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:GainsLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTax",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-72": {
   "value": "199000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTax",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-73": {
   "value": "102000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTax",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-74": {
   "value": "-705000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-75": {
   "value": "47000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-76": {
   "value": "-2446000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-77": {
   "value": "382000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-78": {
   "value": "-2328000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:OtherComprehensiveIncomeFromContinuingOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-79": {
   "value": "330000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:OtherComprehensiveIncomeFromContinuingOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-80": {
   "value": "4732000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncomeFromContinuingOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-81": {
   "value": "6801000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncomeFromContinuingOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-82": {
   "value": "-169000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncomeFromDiscontinuedOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-83": {
   "value": "-104000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncomeFromDiscontinuedOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-84": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:OtherComprehensiveIncomeFromDiscontinuedOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-85": {
   "value": "8000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:OtherComprehensiveIncomeFromDiscontinuedOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-86": {
   "value": "4563000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-87": {
   "value": "6705000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-88": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncomeAttributableToNoncontrollingInterests",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-89": {
   "value": "3000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncomeAttributableToNoncontrollingInterests",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-90": {
   "value": "4563000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-91": {
   "value": "6702000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-92": {
   "value": "56451000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CashAndBankBalancesAtCentralBanks",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-93": {
   "value": "50832000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CashAndBankBalancesAtCentralBanks",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-94": {
   "value": "141861000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:LoansAndAdvancesToBanks",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-95": {
   "value": "107546000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:LoansAndAdvancesToBanks",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-96": {
   "value": "13115000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-97": {
   "value": "6430000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-98": {
   "value": "40573000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-99": {
   "value": "50020000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-100": {
   "value": "42080000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:DebtInstrumentsHeld",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-101": {
   "value": "41878000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:DebtInstrumentsHeld",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-102": {
   "value": "2061000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherFinancialAssets",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-103": {
   "value": "2794000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherFinancialAssets",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-104": {
   "value": "61016000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:DerivativeFinancialAssets",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-105": {
   "value": "27474000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:DerivativeFinancialAssets",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-106": {
   "value": "680434000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:LoansAndAdvancesToCustomers",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-107": {
   "value": "621156000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:LoansAndAdvancesToCustomers",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-108": {
   "value": "16000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CurrentTaxAssets",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-109": {
   "value": "36000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CurrentTaxAssets",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-110": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:ReceivablesDueFromSubsidiaries",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-111": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:ReceivablesDueFromSubsidiaries",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-112": {
   "value": "3385000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:DeferredTaxAssets",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-113": {
   "value": "2953000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:DeferredTaxAssets",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-114": {
   "value": "3009000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:PropertyPlantAndEquipment",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-115": {
   "value": "2814000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:PropertyPlantAndEquipment",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-116": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:InvestmentsInSubsidiaries",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-117": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:InvestmentsInSubsidiaries",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-118": {
   "value": "4652000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IntangibleAssetsAndGoodwill",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-119": {
   "value": "4113000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IntangibleAssetsAndGoodwill",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-120": {
   "value": "6473000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherNonfinancialAssets",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-121": {
   "value": "7922000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherNonfinancialAssets",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-122": {
   "value": "1055126000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Assets",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-123": {
   "value": "925968000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Assets",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-124": {
   "value": "74679000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:DepositsFromBanks",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-125": {
   "value": "74160000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:DepositsFromBanks",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-126": {
   "value": "17245000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:RepurchaseAgreementsAndCashCollateralOnSecuritiesLent",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-127": {
   "value": "4664000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:RepurchaseAgreementsAndCashCollateralOnSecuritiesLent",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-128": {
   "value": "23286000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherFinancialLiabilities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-129": {
   "value": "27046000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherFinancialLiabilities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-130": {
   "value": "57486000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:DerivativeFinancialLiabilities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-131": {
   "value": "24031000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:DerivativeFinancialLiabilities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-132": {
   "value": "683526000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:DepositsFromCustomers",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-133": {
   "value": "605043000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:DepositsFromCustomers",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-134": {
   "value": "1011000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CurrentTaxLiabilities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-135": {
   "value": "271000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CurrentTaxLiabilities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-136": {
   "value": "2096000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Provisions",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-137": {
   "value": "2834000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Provisions",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-138": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:PayablesToSubsidiaries",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-139": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:PayablesToSubsidiaries",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-140": {
   "value": "119283000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:BondsIssuedNotesAndDebenturesIssuedAndSubordinatedLiabilities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-141": {
   "value": "109154000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:BondsIssuedNotesAndDebenturesIssuedAndSubordinatedLiabilities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-142": {
   "value": "7318000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherBorrowings",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-143": {
   "value": "6831000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherBorrowings",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-144": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:DeferredTaxLiabilities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-145": {
   "value": "29000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:DeferredTaxLiabilities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-146": {
   "value": "10164000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherNonfinancialLiabilities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-147": {
   "value": "9126000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherNonfinancialLiabilities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-148": {
   "value": "996094000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Liabilities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-149": {
   "value": "863189000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Liabilities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-150": {
   "value": "59032000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:NetAssetsLiabilities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-151": {
   "value": "62779000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:NetAssetsLiabilities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-152": {
   "value": "39399000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IssuedCapital",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-153": {
   "value": "43247000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IssuedCapital",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-154": {
   "value": "-1839000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherReserves",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-155": {
   "value": "550000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherReserves",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-156": {
   "value": "21472000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:RetainedEarnings",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-157": {
   "value": "18982000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:RetainedEarnings",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-158": {
   "value": "59032000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-159": {
   "value": "62779000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-160": {
   "value": "21518000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:InterestReceivedClassifiedAsOperatingActivities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-161": {
   "value": "18194000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:InterestReceivedClassifiedAsOperatingActivities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-162": {
   "value": "6544000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:InterestPaidClassifiedAsOperatingActivities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-163": {
   "value": "4589000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:InterestPaidClassifiedAsOperatingActivities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-164": {
   "value": "28000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:DividendsReceivedClassifiedAsOperatingActivities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-165": {
   "value": "22000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:DividendsReceivedClassifiedAsOperatingActivities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-166": {
   "value": "5370000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:TradingIncomeExpenseReceivedPaidClassifiedAsOperatingActivities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-167": {
   "value": "107000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:TradingIncomeExpenseReceivedPaidClassifiedAsOperatingActivities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-168": {
   "value": "2527000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:OtherIncomeReceivedClassifiedAsOperatingActivities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-169": {
   "value": "3210000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:OtherIncomeReceivedClassifiedAsOperatingActivities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-170": {
   "value": "6207000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:OperatingExpensePaidClassifiedAsOperatingActivities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-171": {
   "value": "6130000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:OperatingExpensePaidClassifiedAsOperatingActivities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-172": {
   "value": "1641000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxesPaidClassifiedAsOperatingActivities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-173": {
   "value": "1833000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncomeTaxesPaidClassifiedAsOperatingActivities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-174": {
   "value": "15051000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:CashFlowsFromUsedInOperationsBeforeChangesInOperatingAssetsAndLiabilitiesDebit",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-175": {
   "value": "8981000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:CashFlowsFromUsedInOperationsBeforeChangesInOperatingAssetsAndLiabilitiesDebit",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-176": {
   "value": "-6720000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForDecreaseIncreaseInReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-177": {
   "value": "-2813000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForDecreaseIncreaseInReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-178": {
   "value": "-19703000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:AdjustmentsForDecreaseIncreaseInCashAndBankBalancesAtCentralBanksAndOtherRegulatoryAuthorities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-179": {
   "value": "-62430000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:AdjustmentsForDecreaseIncreaseInCashAndBankBalancesAtCentralBanksAndOtherRegulatoryAuthorities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-180": {
   "value": "6273000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForDecreaseIncreaseInFinancialAssetsHeldForTrading",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-181": {
   "value": "12453000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForDecreaseIncreaseInFinancialAssetsHeldForTrading",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-182": {
   "value": "624000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:AdjustmentsForDecreaseIncreaseInOtherFinancialAssetsAtFairValue",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-183": {
   "value": "1166000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:AdjustmentsForDecreaseIncreaseInOtherFinancialAssetsAtFairValue",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-184": {
   "value": "-53384000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForDecreaseIncreaseInLoansAndAdvancesToCustomers",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-185": {
   "value": "-34370000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForDecreaseIncreaseInLoansAndAdvancesToCustomers",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-186": {
   "value": "3173000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForDecreaseIncreaseInOtherAssets",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-187": {
   "value": "-985000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForDecreaseIncreaseInOtherAssets",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-188": {
   "value": "12624000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForIncreaseDecreaseInRepurchaseAgreementsAndCashCollateralOnSecuritiesLent",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-189": {
   "value": "3100000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForIncreaseDecreaseInRepurchaseAgreementsAndCashCollateralOnSecuritiesLent",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-190": {
   "value": "75530000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForIncreaseDecreaseInDepositsFromCustomers",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-191": {
   "value": "55944000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForIncreaseDecreaseInDepositsFromCustomers",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-192": {
   "value": "-352000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:AdjustmentsForIncreaseDecreaseInOtherFinancialLiabilitiesAtFairValue",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-193": {
   "value": "1173000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:AdjustmentsForIncreaseDecreaseInOtherFinancialLiabilitiesAtFairValue",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-194": {
   "value": "-2667000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForIncreaseDecreaseInOtherLiabilities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-195": {
   "value": "-1133000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:AdjustmentsForIncreaseDecreaseInOtherLiabilities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-196": {
   "value": "5121000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:AdjustmentsForDecreaseIncreaseInLoansAndAdvancesToBanksAndAdjustmentsForIncreaseDecreaseInDepositsFromBanks",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-197": {
   "value": "21027000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:AdjustmentsForDecreaseIncreaseInLoansAndAdvancesToBanksAndAdjustmentsForIncreaseDecreaseInDepositsFromBanks",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-198": {
   "value": "-7349000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:AdjustmentsForDecreaseIncreaseInDerivativeFinancialAssetsAndAdjustmentsForIncreaseDecreaseInDerivativeFinancialLiabilities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-199": {
   "value": "-1354000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:AdjustmentsForDecreaseIncreaseInDerivativeFinancialAssetsAndAdjustmentsForIncreaseDecreaseInDerivativeFinancialLiabilities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-200": {
   "value": "13170000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:AdjustmentsForDecreaseIncreaseInOperatingAssetsAndLiabilities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-201": {
   "value": "-8222000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:AdjustmentsForDecreaseIncreaseInOperatingAssetsAndLiabilities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-202": {
   "value": "28221000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInOperatingActivities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-203": {
   "value": "759000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInOperatingActivities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-204": {
   "value": "33697000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:PurchaseOfDebtInstrumentsClassifiedAsInvestingActivities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-205": {
   "value": "29740000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:PurchaseOfDebtInstrumentsClassifiedAsInvestingActivities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-206": {
   "value": "29084000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:ProceedsFromSalesOrMaturityOfDebtInstrumentsClassifiedAsInvestingActivities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-207": {
   "value": "26301000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:ProceedsFromSalesOrMaturityOfDebtInstrumentsClassifiedAsInvestingActivities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-208": {
   "value": "2000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:IncreaseDecreaseInOtherDebtAndEquityInstrumentsClassifiedAsInvestingActivities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-209": {
   "value": "-190000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:IncreaseDecreaseInOtherDebtAndEquityInstrumentsClassifiedAsInvestingActivities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-210": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:CashAdvancesAndLoansMadeToSubsidiariesAndCashReceiptsFromRepaymentOfAdvancesAndLoansMadeToSubsidiaries",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-211": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:CashAdvancesAndLoansMadeToSubsidiariesAndCashReceiptsFromRepaymentOfAdvancesAndLoansMadeToSubsidiaries",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-212": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:ProceedsFromChangesInOwnershipInterestsInSubsidiariesAndPaymentsFromChangesInOwnershipInterestsInSubsidiaries",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-213": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:ProceedsFromChangesInOwnershipInterestsInSubsidiariesAndPaymentsFromChangesInOwnershipInterestsInSubsidiaries",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-214": {
   "value": "-4000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:ProceedsFromSalesOfInvestmentsAccountedForUsingEquityMethodAndPurchaseOfInterestsInInvestmentsAccountedForUsingEquityMethod",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-215": {
   "value": "-124000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:ProceedsFromSalesOfInvestmentsAccountedForUsingEquityMethodAndPurchaseOfInterestsInInvestmentsAccountedForUsingEquityMethod",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-216": {
   "value": "3183000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-217": {
   "value": "211000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-218": {
   "value": "176000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-219": {
   "value": "747000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-220": {
   "value": "1076000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:PurchaseOfPropertyPlantAndEquipmentAndComputerSoftware",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-221": {
   "value": "858000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:PurchaseOfPropertyPlantAndEquipmentAndComputerSoftware",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-222": {
   "value": "-1000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:ProceedsFromDisposalsOfPropertyPlantAndEquipmentAndComputerSoftwareClassifiedAsInvestingActivities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-223": {
   "value": "1000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:ProceedsFromDisposalsOfPropertyPlantAndEquipmentAndComputerSoftwareClassifiedAsInvestingActivities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-224": {
   "value": "-8703000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInInvestingActivities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-225": {
   "value": "-3694000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInInvestingActivities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-226": {
   "value": "27640000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:RepaymentsOfBondsNotesAndDebenturesAndRepaymentsOfSubordinatedLiabilities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-227": {
   "value": "30062000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:RepaymentsOfBondsNotesAndDebenturesAndRepaymentsOfSubordinatedLiabilities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-228": {
   "value": "41932000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:ProceedsFromIssueOfBondsNotesAndDebenturesAndProceedsFromIssueOfSubordinatedLiabilities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-229": {
   "value": "13098000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:ProceedsFromIssueOfBondsNotesAndDebenturesAndProceedsFromIssueOfSubordinatedLiabilities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-230": {
   "value": "3917000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:PaymentsToAcquireOrRedeemEntitysSharesForShareBuyBackProgramme",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-231": {
   "value": "486000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:PaymentsToAcquireOrRedeemEntitysSharesForShareBuyBackProgramme",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-232": {
   "value": "500000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:PaymentsToAcquireOrRedeemEntitysSharesForDividendReinvestmentPlanNeutralisation",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-233": {
   "value": "164000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:PaymentsToAcquireOrRedeemEntitysSharesForDividendReinvestmentPlanNeutralisation",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-234": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:RepaymentsOfOtherContributedEquityClassifiedAsFinancingActivities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-235": {
   "value": "2000000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:RepaymentsOfOtherContributedEquityClassifiedAsFinancingActivities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-236": {
   "value": "1983000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:ProceedsFromOtherBorrowingsClassifiedAsFinancingActivities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-237": {
   "value": "2365000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:ProceedsFromOtherBorrowingsClassifiedAsFinancingActivities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-238": {
   "value": "1504000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:RepaymentsOfOtherBorrowingsClassifiedAsFinancingActivities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-239": {
   "value": "1731000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:RepaymentsOfOtherBorrowingsClassifiedAsFinancingActivities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-240": {
   "value": "4006000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:DividendsPaidAndDistributionsPaidExcludingDividendReinvestmentPlanClassifiedAsFinancingActivities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-241": {
   "value": "2682000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:DividendsPaidAndDistributionsPaidExcludingDividendReinvestmentPlanClassifiedAsFinancingActivities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-242": {
   "value": "-339000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-243": {
   "value": "-383000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-244": {
   "value": "6009000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-245": {
   "value": "-22045000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CashFlowsFromUsedInFinancingActivities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-246": {
   "value": "25527000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-247": {
   "value": "-24980000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-248": {
   "value": "37881000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalents",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-249": {
   "value": "62041000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalents",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-250": {
   "value": "-1229000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-251": {
   "value": "820000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-252": {
   "value": "62179000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalents",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-253": {
   "value": "37881000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:CashAndCashEquivalents",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-254": {
   "value": "45476000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-255": {
   "value": "99000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:OtherReservesMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-256": {
   "value": "15717000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-257": {
   "value": "61292000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-258": {
   "value": "1000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-259": {
   "value": "61293000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-260": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromContinuingOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-261": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromContinuingOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:OtherReservesMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-262": {
   "value": "6471000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromContinuingOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-263": {
   "value": "6471000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromContinuingOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-264": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromContinuingOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-265": {
   "value": "6471000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromContinuingOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-266": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromDiscontinuedOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-267": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromDiscontinuedOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:OtherReservesMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-268": {
   "value": "-107000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromDiscontinuedOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-269": {
   "value": "-107000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromDiscontinuedOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-270": {
   "value": "3000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromDiscontinuedOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-271": {
   "value": "-104000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromDiscontinuedOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-272": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:OtherComprehensiveIncomeFromContinuingOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-273": {
   "value": "385000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:OtherComprehensiveIncomeFromContinuingOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:OtherReservesMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-274": {
   "value": "-55000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:OtherComprehensiveIncomeFromContinuingOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-275": {
   "value": "330000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:OtherComprehensiveIncomeFromContinuingOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-276": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:OtherComprehensiveIncomeFromContinuingOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-277": {
   "value": "330000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:OtherComprehensiveIncomeFromContinuingOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-278": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:OtherComprehensiveIncomeFromDiscontinuedOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-279": {
   "value": "3000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:OtherComprehensiveIncomeFromDiscontinuedOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:OtherReservesMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-280": {
   "value": "5000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:OtherComprehensiveIncomeFromDiscontinuedOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-281": {
   "value": "8000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:OtherComprehensiveIncomeFromDiscontinuedOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-282": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:OtherComprehensiveIncomeFromDiscontinuedOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-283": {
   "value": "8000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:OtherComprehensiveIncomeFromDiscontinuedOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-284": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-285": {
   "value": "388000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:OtherReservesMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-286": {
   "value": "6314000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-287": {
   "value": "6702000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-288": {
   "value": "3000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-289": {
   "value": "6705000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-290": {
   "value": "274000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-291": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:OtherReservesMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-292": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-293": {
   "value": "274000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-294": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-295": {
   "value": "274000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-296": {
   "value": "13000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:IncreaseDecreaseThroughTaxOnDeductibleTransactionCosts",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-297": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:IncreaseDecreaseThroughTaxOnDeductibleTransactionCosts",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:OtherReservesMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-298": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:IncreaseDecreaseThroughTaxOnDeductibleTransactionCosts",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-299": {
   "value": "13000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:IncreaseDecreaseThroughTaxOnDeductibleTransactionCosts",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-300": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:IncreaseDecreaseThroughTaxOnDeductibleTransactionCosts",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-301": {
   "value": "13000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:IncreaseDecreaseThroughTaxOnDeductibleTransactionCosts",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-302": {
   "value": "-164000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:IncreaseDecreaseThroughOnMarketPurchaseOfSharesForDividendReinvestmentPlanNeutralisation",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-303": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:IncreaseDecreaseThroughOnMarketPurchaseOfSharesForDividendReinvestmentPlanNeutralisation",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:OtherReservesMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-304": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:IncreaseDecreaseThroughOnMarketPurchaseOfSharesForDividendReinvestmentPlanNeutralisation",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-305": {
   "value": "-164000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:IncreaseDecreaseThroughOnMarketPurchaseOfSharesForDividendReinvestmentPlanNeutralisation",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-306": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:IncreaseDecreaseThroughOnMarketPurchaseOfSharesForDividendReinvestmentPlanNeutralisation",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-307": {
   "value": "-164000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:IncreaseDecreaseThroughOnMarketPurchaseOfSharesForDividendReinvestmentPlanNeutralisation",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-308": {
   "value": "486000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:PurchaseOfTreasuryShares",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-309": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:PurchaseOfTreasuryShares",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:OtherReservesMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-310": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:PurchaseOfTreasuryShares",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-311": {
   "value": "486000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:PurchaseOfTreasuryShares",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-312": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:PurchaseOfTreasuryShares",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-313": {
   "value": "486000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:PurchaseOfTreasuryShares",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-314": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughAppropriationOfRetainedEarnings",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-315": {
   "value": "27000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughAppropriationOfRetainedEarnings",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:OtherReservesMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-316": {
   "value": "-27000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughAppropriationOfRetainedEarnings",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-317": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughAppropriationOfRetainedEarnings",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-318": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughAppropriationOfRetainedEarnings",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-319": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughAppropriationOfRetainedEarnings",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-320": {
   "value": "79000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:IncreaseDecreaseThroughTransferFromReserveOfShareBasedPayments",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-321": {
   "value": "-79000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:IncreaseDecreaseThroughTransferFromReserveOfShareBasedPayments",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:OtherReservesMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-322": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:IncreaseDecreaseThroughTransferFromReserveOfShareBasedPayments",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-323": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:IncreaseDecreaseThroughTransferFromReserveOfShareBasedPayments",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-324": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:IncreaseDecreaseThroughTransferFromReserveOfShareBasedPayments",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-325": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:IncreaseDecreaseThroughTransferFromReserveOfShareBasedPayments",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-326": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-327": {
   "value": "100000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:OtherReservesMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-328": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-329": {
   "value": "100000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-330": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-331": {
   "value": "100000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-332": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-333": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:OtherReservesMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-334": {
   "value": "2939000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-335": {
   "value": "2939000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-336": {
   "value": "4000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-337": {
   "value": "2943000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-338": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughOtherDistributionsToOwners",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-339": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughOtherDistributionsToOwners",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:OtherReservesMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-340": {
   "value": "13000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughOtherDistributionsToOwners",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-341": {
   "value": "13000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughOtherDistributionsToOwners",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-342": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughOtherDistributionsToOwners",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-343": {
   "value": "13000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughOtherDistributionsToOwners",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-344": {
   "value": "-1945000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:IncreaseDecreaseThroughRedemptionOfNationalIncomeSecurities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-345": {
   "value": "15000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:IncreaseDecreaseThroughRedemptionOfNationalIncomeSecurities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:OtherReservesMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-346": {
   "value": "-70000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:IncreaseDecreaseThroughRedemptionOfNationalIncomeSecurities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-347": {
   "value": "-2000000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:IncreaseDecreaseThroughRedemptionOfNationalIncomeSecurities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-348": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:IncreaseDecreaseThroughRedemptionOfNationalIncomeSecurities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-349": {
   "value": "-2000000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:IncreaseDecreaseThroughRedemptionOfNationalIncomeSecurities",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2020-10-01T00:00:00/2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-350": {
   "value": "43247000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-351": {
   "value": "550000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:OtherReservesMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-352": {
   "value": "18982000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-353": {
   "value": "62779000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-354": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-355": {
   "value": "62779000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-356": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromContinuingOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-357": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromContinuingOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:OtherReservesMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-358": {
   "value": "7060000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromContinuingOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-359": {
   "value": "7060000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromContinuingOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-360": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromContinuingOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-361": {
   "value": "7060000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromContinuingOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-362": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromDiscontinuedOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-363": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromDiscontinuedOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:OtherReservesMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-364": {
   "value": "-169000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromDiscontinuedOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-365": {
   "value": "-169000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromDiscontinuedOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-366": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromDiscontinuedOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-367": {
   "value": "-169000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ProfitLossFromDiscontinuedOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-368": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:OtherComprehensiveIncomeFromContinuingOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-369": {
   "value": "-2429000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:OtherComprehensiveIncomeFromContinuingOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:OtherReservesMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-370": {
   "value": "101000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:OtherComprehensiveIncomeFromContinuingOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-371": {
   "value": "-2328000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:OtherComprehensiveIncomeFromContinuingOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-372": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:OtherComprehensiveIncomeFromContinuingOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-373": {
   "value": "-2328000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:OtherComprehensiveIncomeFromContinuingOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-374": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:OtherComprehensiveIncomeFromDiscontinuedOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-375": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:OtherComprehensiveIncomeFromDiscontinuedOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:OtherReservesMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-376": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:OtherComprehensiveIncomeFromDiscontinuedOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-377": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:OtherComprehensiveIncomeFromDiscontinuedOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-378": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:OtherComprehensiveIncomeFromDiscontinuedOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-379": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:OtherComprehensiveIncomeFromDiscontinuedOperations",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-380": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-381": {
   "value": "-2429000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:OtherReservesMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-382": {
   "value": "6992000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-383": {
   "value": "4563000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-384": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-385": {
   "value": "4563000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:ComprehensiveIncome",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-386": {
   "value": "500000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-387": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:OtherReservesMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-388": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-389": {
   "value": "500000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-390": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-391": {
   "value": "500000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IssueOfEquity",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-392": {
   "value": "-500000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:IncreaseDecreaseThroughOnMarketPurchaseOfSharesForDividendReinvestmentPlanNeutralisation",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-393": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:IncreaseDecreaseThroughOnMarketPurchaseOfSharesForDividendReinvestmentPlanNeutralisation",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:OtherReservesMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-394": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:IncreaseDecreaseThroughOnMarketPurchaseOfSharesForDividendReinvestmentPlanNeutralisation",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-395": {
   "value": "-500000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:IncreaseDecreaseThroughOnMarketPurchaseOfSharesForDividendReinvestmentPlanNeutralisation",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-396": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:IncreaseDecreaseThroughOnMarketPurchaseOfSharesForDividendReinvestmentPlanNeutralisation",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-397": {
   "value": "-500000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:IncreaseDecreaseThroughOnMarketPurchaseOfSharesForDividendReinvestmentPlanNeutralisation",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-398": {
   "value": "3917000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:PurchaseOfTreasuryShares",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-399": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:PurchaseOfTreasuryShares",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:OtherReservesMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-400": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:PurchaseOfTreasuryShares",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-401": {
   "value": "3917000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:PurchaseOfTreasuryShares",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-402": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:PurchaseOfTreasuryShares",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-403": {
   "value": "3917000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:PurchaseOfTreasuryShares",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-404": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughAppropriationOfRetainedEarnings",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-405": {
   "value": "-4000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughAppropriationOfRetainedEarnings",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:OtherReservesMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-406": {
   "value": "4000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughAppropriationOfRetainedEarnings",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-407": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughAppropriationOfRetainedEarnings",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-408": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughAppropriationOfRetainedEarnings",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-409": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughAppropriationOfRetainedEarnings",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-410": {
   "value": "69000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:IncreaseDecreaseThroughTransferFromReserveOfShareBasedPayments",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-411": {
   "value": "-69000000",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:IncreaseDecreaseThroughTransferFromReserveOfShareBasedPayments",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:OtherReservesMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-412": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:IncreaseDecreaseThroughTransferFromReserveOfShareBasedPayments",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-413": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:IncreaseDecreaseThroughTransferFromReserveOfShareBasedPayments",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-414": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:IncreaseDecreaseThroughTransferFromReserveOfShareBasedPayments",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-415": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "NAT:IncreaseDecreaseThroughTransferFromReserveOfShareBasedPayments",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-416": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-417": {
   "value": "113000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:OtherReservesMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-418": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-419": {
   "value": "113000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-420": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-421": {
   "value": "113000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-422": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-423": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:OtherReservesMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-424": {
   "value": "4506000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-425": {
   "value": "4506000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-426": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-427": {
   "value": "4506000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:DividendsPaid",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-428": {
   "value": "39399000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:IssuedCapitalMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-429": {
   "value": "-1839000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:OtherReservesMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-430": {
   "value": "21472000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:RetainedEarningsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-431": {
   "value": "59032000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:EquityAttributableToOwnersOfParentMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-432": {
   "value": "0",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2022-10-01T00:00:00",
    "ifrs-full:ComponentsOfEquityAxis": "ifrs-full:NoncontrollingInterestsMember",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-433": {
   "value": "59032000000",
   "decimals": -6,
   "dimensions": {
    "concept": "ifrs-full:Equity",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2022-10-01T00:00:00",
    "unit": "iso4217:AUD"
   }
  },
  "ixv-1": {
   "value": "Australia,",
   "dimensions": {
    "concept": "ifrs-full:DomicileOfEntity",
    "language": "en",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00"
   }
  },
  "ixv-2": {
   "value": "for-profit company limited by shares which are publicly traded on the Australian Securities Exchange.",
   "dimensions": {
    "concept": "ifrs-full:LegalFormOfEntity",
    "language": "en",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00"
   }
  },
  "ixv-0": {
   "value": "National Australia Bank Limited",
   "dimensions": {
    "concept": "ifrs-full:NameOfReportingEntityOrOtherMeansOfIdentification",
    "language": "en",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00"
   }
  },
  "ixv-4": {
   "value": "Level 28395 Bourke StreetMELBOURNE VIC 3000Australia",
   "dimensions": {
    "concept": "ifrs-full:AddressOfRegisteredOfficeOfEntity",
    "language": "en",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00"
   }
  },
  "ixv-11": {
   "value": "National Australia Bank Limited",
   "dimensions": {
    "concept": "ifrs-full:NameOfUltimateParentOfGroup",
    "language": "en",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00"
   }
  },
  "ixv-3": {
   "value": "Australia",
   "dimensions": {
    "concept": "ifrs-full:CountryOfIncorporation",
    "language": "en",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00"
   }
  },
  "ixv-10": {
   "value": "National Australia Bank Limited",
   "dimensions": {
    "concept": "ifrs-full:NameOfParentEntity",
    "language": "en",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00"
   }
  },
  "ixv-8": {
   "value": "Australia",
   "dimensions": {
    "concept": "ifrs-full:PrincipalPlaceOfBusiness",
    "language": "en",
    "entity": "scheme:F8SB4JFBSYQFRQEH3Z21",
    "period": "2021-10-01T00:00:00/2022-10-01T00:00:00"
   }
  }
 }
}