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Costs of services and general and administrative costs (Tables)
6 Months Ended
Jun. 30, 2025
Costs of service and general and administrative costs [Abstract]  
Summary of Costs of Service and General and Administrative Costs
Costs of services and general and administrative costs include:
Six Months Ended
30 June 2025
Six Months Ended
30 June 2024
£m£m
Staff costs1
3,685 3,985 
Establishment costs219 242 
Media pass-through costs1,279 1,208 
Other costs of services and general and administrative costs2
1,259 1,369 
6,442 6,804 
Notes
1 Additional staff costs of £4 million (period ended 30 June 2024: £77 million) are included within Restructuring and transformation costs below.
2 Other costs of services and general and administrative costs include £358 million (period ended 30 June 2024: £420 million) of other pass-through costs.
2. Costs of services and general and administrative costs (continued)

Other costs of services and general and administrative costs include the following significant items:
Six Months Ended
30 June 2025
Six Months Ended
30 June 2024
£m£m
Goodwill impairment
116 — 
Amortisation and impairment of acquired intangible assets
32 57 
Restructuring and transformation costs32 131