Tax - Schedule of Statutory Position and Tax Disclosure (Details) - GBP (£) £ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
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| DEFERRED TAX (Details) - Schedule of Statutory Position and Tax Disclosure [Line Items] | ||
| Deferred tax assets | £ 3,990 | £ 5,005 |
| Deferred tax liabilities | (146) | (125) |
| Statutory position | ||
| DEFERRED TAX (Details) - Schedule of Statutory Position and Tax Disclosure [Line Items] | ||
| Deferred tax assets | 3,990 | 5,005 |
| Deferred tax liabilities | (146) | (125) |
| Net deferred tax asset at 31 December | 3,844 | 4,880 |
| Tax disclosure | ||
| DEFERRED TAX (Details) - Schedule of Statutory Position and Tax Disclosure [Line Items] | ||
| Deferred tax assets | 5,734 | 6,900 |
| Deferred tax liabilities | (1,890) | (2,020) |
| Net deferred tax asset at 31 December | £ 3,844 | £ 4,880 |
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- Definition The amounts of income taxes recoverable in future periods in respect of: (a) deductible temporary differences; (b) the carryforward of unused tax losses; and (c) the carryforward of unused tax credits. [Refer: Temporary differences [member]; Unused tax credits [member]; Unused tax losses [member]] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amounts of income taxes payable in future periods in respect of taxable temporary differences. [Refer: Temporary differences [member]] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amount of deferred tax assets net of deferred tax liabilities, when the absolute amount of deferred tax assets is greater than the absolute amount of deferred tax liabilities. [Refer: Deferred tax assets; Deferred tax liabilities] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- References No definition available.
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