Inventories and pre-publication costs - Additional information (Details) - GBP (£) £ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Inventories and pre-publication costs | ||
| Pre-publication costs capitalized | £ 102 | £ 92 |
| Pre-publication costs, amortization charge | £ 89 | £ 77 |