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The amount of income or expense relating to fees and commissions.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
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The gain (loss) arising from the derecognition of financial assets measured at amortised cost. [Refer: Financial assets at amortised cost]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
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The gain (loss) on hedge ineffectiveness. Hedge ineffectiveness is the extent to which the changes in the fair value or the cash flows of the hedging instrument are greater or less than those on the hedged item.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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The gains (losses) on financial assets at fair value through profit or loss. [Refer: Financial assets at fair value through profit or loss]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
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The gains (losses) recognised in other comprehensive income on financial assets measured at fair value through other comprehensive income applying paragraph 4.1.2A of IFRS 9, before tax, before reclassification adjustments. [Refer: Financial assets measured at fair value through other comprehensive income; Other comprehensive income]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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The gain on the disposal of property, plant and equipment. [Refer: Property, plant and equipment]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
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The nominal or face amount of a financial instrument, used to calculate payments made on that instrument.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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The amount of operating income (expense) that the entity does not separately disclose in the same statement or note.

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The amount of reclassification adjustments related to exchange differences when the financial statements of foreign operations are translated, before tax. Reclassification adjustments are amounts reclassified to profit (loss) in the current period that were recognised in other comprehensive income in the current or previous periods. [Refer: Other comprehensive income]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
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The entity's share of the profit (loss) of associates accounted for using the equity method. [Refer: Associates [member]; Investments accounted for using equity method; Profit (loss)]

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The amount of income (expense) relating to trading assets and liabilities.

Name:	ifrs-full_TradingIncomeExpense
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Data Type:	xbrli:monetaryItemType
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- References

No definition available.

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The amount of trading income (expense) relating to equity instruments. [Refer: Equity instruments held; Trading income (expense)]

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Data Type:	xbrli:monetaryItemType
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The amount of trading income (expense) relating to foreign exchange contracts. [Refer: Trading income (expense)]

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Data Type:	xbrli:monetaryItemType
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n/a.

No definition available.

Name:	nwg_DebtSecuritiesInterestIncome
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Balance Type:	debit
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n/a

No definition available.

Name:	nwg_DerivativeFinancialLiabilitiesInterestIncome
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Data Type:	xbrli:monetaryItemType
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Amount of gain (loss) on acquisition of financial assets.

No definition available.

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Gains (losses) on disposals of subsidiaries and associates.

No definition available.

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Amount of gain loss purchase of freeholds for properties.

No definition available.

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The amount of gains (losses) on assets and liabilities held at fair value through profit or loss and related derivatives.

No definition available.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

No definition available.

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The amount of income or expenses that the entity does not separately disclose in the same statement or note when the entity uses the 'function of expense' form for its analysis of income or expenses.

No definition available.

Name:	nwg_IfrsOtherIncomeExpense
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Data Type:	xbrli:monetaryItemType
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Amount of legacy liability release.

No definition available.

Name:	nwg_LegacyLiabilityReleaseAmount
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Data Type:	xbrli:monetaryItemType
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n/a.

No definition available.

Name:	nwg_NonInterestIncomeExpense
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Data Type:	xbrli:monetaryItemType
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The amount of operating lease and other rental income.

No definition available.

Name:	nwg_OperatingLeaseAndOtherRentalIncome
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Data Type:	xbrli:monetaryItemType
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The amount of capital in subsidiaries repaid during the period.

No definition available.

Name:	nwg_RepaymentsOfCapitalInSubsidiaries
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Data Type:	xbrli:monetaryItemType
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The amount of trading income (expense) relating to credit.

No definition available.

Name:	nwg_TradingIncomeExpenseOnCredit
Namespace Prefix:	nwg_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

The amount of trading income (expense) relating to interest rate.

No definition available.

Name:	nwg_TradingIncomeExpenseOnInterestRate
Namespace Prefix:	nwg_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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Balance Type:
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Name:	ifrs-full_SignificantInvestmentsInSubsidiariesAxis=nwg_RfsHoldingsMember
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Data Type:	na
Balance Type:
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Name:	ifrs-full_SignificantInvestmentsInSubsidiariesAxis=nwg_UbiDacMember
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