v3.25.4

Retirement benefit obligations - Schedule of Defined Benefit Pension Expense (Details) - GBP (£) £ in Millions | 12 Months Ended
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Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
RETIREMENT BENEFIT OBLIGATIONS (Details) - Schedule of Retirement Benefit Charges to Income Statement [Line Items] |  |  |
Charge for the year | £ 64 | £ 85 | £ 88
Net interest amount | (165) | (166) | (208)
Past service cost – plan amendments | 30 | 35 | 5
Plan administration costs incurred during the year | 32 | 33 | 35
Total defined benefit pension credit | (37) | (11) | (79)
Defined benefit pension schemes |  |  |
RETIREMENT BENEFIT OBLIGATIONS (Details) - Schedule of Retirement Benefit Charges to Income Statement [Line Items] |  |  |
Total defined benefit pension credit | £ (39) | £ (13) | £ (80)

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