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v3.25.2

Related party transactions (Details) | 6 Months Ended
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Jun. 30, 2025
Related party transactions |
Threshold period considered to disclose as related party even after percentage of ownership | 12 months
Threshold percentage of ownership in other entity or third party holding interests in reporting entity | 20.00%

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- References No definition available. + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Threshold percentage of ownership in other entity or third party holding interests in reporting entity for disclosure as a related party + References No definition available. + Details
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Namespace Prefix: | nwg_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Threshold period considered to disclose as related party even after percentage of ownership in other entity or third party holding interests in reporting entity falls below threshold percentage. + References No definition available. + Details
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Namespace Prefix: | nwg_
Data Type: | xbrli:durationItemType
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