v3.25.4
Tax - Schedule of tax charges (Details) - GBP (£)
£ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
TAX EXPENSE (Details) - Schedule of Tax Charges [Line Items]      
Adjustments in respect of prior years £ 106 £ 94 £ 0
Current tax expense (1,429) (1,189) (1,348)
Deferred tax (expense) credit (475) (305) (637)
Tax expense (1,904) (1,494) [1] (1,985) [1]
UK corporation tax:      
TAX EXPENSE (Details) - Schedule of Tax Charges [Line Items]      
Current tax on profit for the year (1,367) (1,159) (1,301)
Adjustments in respect of prior years 86 89 51
Current tax expense (1,281) (1,070) (1,250)
Foreign tax:      
TAX EXPENSE (Details) - Schedule of Tax Charges [Line Items]      
Current tax on profit for the year (139) (122) (101)
Adjustments in respect of prior years (9) 3 3
Current tax expense (148) (119) (98)
Deferred tax:      
TAX EXPENSE (Details) - Schedule of Tax Charges [Line Items]      
Deferred tax (expense) credit (504) (307) (583)
Adjustments in respect of prior years £ 29 £ 2 £ (54)
[1] 1Comparative periods have been represented for presentational changes. See note 1.