DIVIDENDS ON ORDINARY SHARES (Details) - GBP (£) £ in Millions	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025
Dividends On Ordinary Shares [Abstract]
Dividends paid	£ 0	£ 0

The amount of dividends paid by the entity on ordinary shares. [Refer: Ordinary shares [member]]

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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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Name:	ifrs-full_DividendsPaidOrdinaryShares
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration