XML 420 R125.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Financial instruments: valuation - Valuation techniques (Details) - Level 3 | Dec. 31, 2023 | Dec. 31, 2023 GBP (£) | Dec. 31, 2022 | Dec. 31, 2022 GBP (£)
--- | --- | --- | --- | ---
Loans | Price | Maximum |  |  |  |
Disclosure of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs, Assets and Liabilities |  |  |  |
Significant unobservable input, financial instruments | 1.23 |  | 1.13 |
Loans | Discount margin | Minimum |  |  |  |
Disclosure of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs, Assets and Liabilities |  |  |  |
Significant unobservable input, financial instruments | 0.0174 |  | 0.0174 |
Loans | Discount margin | Maximum |  |  |  |
Disclosure of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs, Assets and Liabilities |  |  |  |
Significant unobservable input, financial instruments | 0.0228 |  | 0.0222 |
Loans | Credit spreads | Minimum |  |  |  |
Disclosure of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs, Assets and Liabilities |  |  |  |
Significant unobservable input, financial instruments | 0.0049 |  | 0.0056 |
Loans | Credit spreads | Maximum |  |  |  |
Disclosure of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs, Assets and Liabilities |  |  |  |
Significant unobservable input, financial instruments | 0.0119 |  | 0.0114 |
Debt securities [member] | Price | Maximum |  |  |  |
Disclosure of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs, Assets and Liabilities |  |  |  |
Significant unobservable input, financial instruments | 1.19 |  | 2.55 |
Equity shares | Price | Maximum |  |  |  |
Disclosure of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs, Assets and Liabilities |  |  |  |
Significant unobservable input, financial instruments | 0.30 | 32,142 | 0.30 | 34,027
Equity shares | Discount margin | Minimum |  |  |  |
Disclosure of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs, Assets and Liabilities |  |  |  |
Significant unobservable input, financial instruments | 0.07 |  | 0.06 |
Equity shares | Discount margin | Maximum |  |  |  |
Disclosure of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs, Assets and Liabilities |  |  |  |
Significant unobservable input, financial instruments | 0.09 |  | 0.08 |
Equity shares | Fund NAV | Minimum |  |  |  |
Disclosure of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs, Assets and Liabilities |  |  |  |
Significant unobservable input, financial instruments | 0.80 |  | 0.80 |
Equity shares | Fund NAV | Maximum |  |  |  |
Disclosure of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs, Assets and Liabilities |  |  |  |
Significant unobservable input, financial instruments | 1.20 |  | 1.20 |
Credit derivatives | Correlation | Minimum |  |  |  |
Disclosure of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs, Assets and Liabilities |  |  |  |
Significant unobservable input, financial instruments | (0.15) |  | (0.15) |
Credit derivatives | Correlation | Maximum |  |  |  |
Disclosure of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs, Assets and Liabilities |  |  |  |
Significant unobservable input, financial instruments | 0.95 |  | 0.95 |
Credit derivatives | Credit spreads | Minimum |  |  |  |
Disclosure of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs, Assets and Liabilities |  |  |  |
Significant unobservable input, financial instruments | 0.0013 |  | 0.0007 |
Credit derivatives | Credit spreads | Maximum |  |  |  |
Disclosure of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs, Assets and Liabilities |  |  |  |
Significant unobservable input, financial instruments | 0.0600 |  | 0.0530 |
Credit derivatives | Volatility | Minimum |  |  |  |
Disclosure of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs, Assets and Liabilities |  |  |  |
Significant unobservable input, financial instruments | 0.30 |  | 0.30 |
Credit derivatives | Volatility | Maximum |  |  |  |
Disclosure of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs, Assets and Liabilities |  |  |  |
Significant unobservable input, financial instruments | 0.80 |  | 0.80 |
Credit derivatives | Upfront points | Maximum |  |  |  |
Disclosure of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs, Assets and Liabilities |  |  |  |
Significant unobservable input, financial instruments | 0.99 |  | 0.99 |
Credit derivatives | Recovery rate | Maximum |  |  |  |
Disclosure of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs, Assets and Liabilities |  |  |  |
Significant unobservable input, financial instruments | 0.60 |  | 0.60 |
Interest rate and FX derivatives | Correlation | Minimum |  |  |  |
Disclosure of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs, Assets and Liabilities |  |  |  |
Significant unobservable input, financial instruments | (0.50) |  | (0.50) |
Interest rate and FX derivatives | Correlation | Maximum |  |  |  |
Disclosure of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs, Assets and Liabilities |  |  |  |
Significant unobservable input, financial instruments | 0.99 |  | 1 |
Interest rate and FX derivatives | Volatility | Minimum |  |  |  |
Disclosure of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs, Assets and Liabilities |  |  |  |
Significant unobservable input, financial instruments | 0.30 |  | 0.30 |
Interest rate and FX derivatives | Volatility | Maximum |  |  |  |
Disclosure of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs, Assets and Liabilities |  |  |  |
Significant unobservable input, financial instruments | 1.11 |  | 1.27 |
Interest rate and FX derivatives | Constant Prepayment Rate | Minimum |  |  |  |
Disclosure of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs, Assets and Liabilities |  |  |  |
Significant unobservable input, financial instruments | 0.02 |  | 0.02 |
Interest rate and FX derivatives | Constant Prepayment Rate | Maximum |  |  |  |
Disclosure of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs, Assets and Liabilities |  |  |  |
Significant unobservable input, financial instruments | 0.22 |  | 0.21 |
Interest rate and FX derivatives | Mean Reversal | Maximum |  |  |  |
Disclosure of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs, Assets and Liabilities |  |  |  |
Significant unobservable input, financial instruments | 0.20 |  | 0.92 |
Interest rate and FX derivatives | Inflation volatility | Minimum |  |  |  |
Disclosure of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs, Assets and Liabilities |  |  |  |
Significant unobservable input, financial instruments | 0.02 |  | 0.01 |
Interest rate and FX derivatives | Inflation volatility | Maximum |  |  |  |
Disclosure of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs, Assets and Liabilities |  |  |  |
Significant unobservable input, financial instruments | 0.02 |  | 0.02 |
Interest rate and FX derivatives | Inflation rate | Minimum |  |  |  |
Disclosure of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs, Assets and Liabilities |  |  |  |
Significant unobservable input, financial instruments | 0.02 |  | 0.02 |
Interest rate and FX derivatives | Inflation rate | Maximum |  |  |  |
Disclosure of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs, Assets and Liabilities |  |  |  |
Significant unobservable input, financial instruments | 0.03 |  | 0.03 |

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
Name: | nwg_DisclosureOfSensitivityAnalysisOfFairValueMeasurementToChangesInUnobservableInputsAssetsAndLiabilitiesLineItems
Namespace Prefix: | nwg_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The value of significant unobservable input used in the measurement of the fair value of financial instruments. + References No definition available. + Details
Name: | nwg_SignificantUnobservableInputFinancialInstruments
Namespace Prefix: | nwg_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | ifrs-full_LevelsOfFairValueHierarchyAxis=ifrs-full_Level3OfFairValueHierarchyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=nwg_IfrsLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_UnobservableInputsAxis=nwg_PriceMeasurementInputMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_UnobservableInputsAxis=nwg_DiscountMarginMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_UnobservableInputsAxis=ifrs-full_CreditSpreadMeasurementInputMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=ifrs-full_DebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=ifrs-full_TradingEquitySecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_UnobservableInputsAxis=ifrs-full_CapitalisationRateMeasurementInputMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=nwg_CreditDerivativesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_UnobservableInputsAxis=nwg_CorrelationMeasurementInputMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_UnobservableInputsAxis=nwg_VolatilityMeasurementInputMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_UnobservableInputsAxis=nwg_UpfrontPointsMeasurementInputMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_UnobservableInputsAxis=nwg_RecoveryRateMeasurementInputMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=nwg_InterestAndForeignExchangeContractsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_UnobservableInputsAxis=ifrs-full_ConstantPrepaymentRateMeasurementInputMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_UnobservableInputsAxis=nwg_MeanReversalMeasurementInputMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_UnobservableInputsAxis=nwg_InflationVolatilityMeasurementInputMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_UnobservableInputsAxis=nwg_InflationRateMeasurementInputMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |