v3.26.1
OPERATING EXPENSES BEFORE CREDIT IMPAIRMENT CHARGES, RESTRUCTURING AND SPECIFIC PROVISIONS - Summary of Operating Expenses Before Credit Impairment Losses, Provisions and Charges (Details) - GBP (£)
£ in Millions
 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Expenses by nature [abstract]    
Staff costs £ 590 £ 596
Operational losses 48 42
Other administration expenses 533 503
Depreciation, amortisation and impairment 168 174
Total operating expenses before impairment losses, provisions and charges [1] £ 1,339 £ 1,315
[1] 1 Restated to reflect the change in accounting policy, as set out in Note 1.