v3.25.4
Retirement benefit obligations - Schedule of Retirement Benefits Recognised in Balance Sheet (Details) - GBP (£)
£ in Millions
Dec. 31, 2025
Dec. 31, 2024
Disclosure of employee benefits [Abstract]    
Retirement benefit assets £ 2,695 £ 3,028
Retirement benefit obligations (120) (122)
Total amounts recognised in the balance sheet £ 2,575 £ 2,906