Financial instruments - Credit risk - Additional information (Details) - GBP (£) £ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
|---|---|---|---|---|
| Disclosure of detailed information about financial instruments | ||||
| Cash and cash equivalents | £ 131 | £ 119 | £ 155 | £ 334 |
| Percentage of cash and cash equivalents held with banks rated A-/A3 or better | 93.00% | 91.00% | ||
| Trade receivables | £ 2,162 | £ 2,184 | ||
| Total past due | ||||
| Disclosure of detailed information about financial instruments | ||||
| Trade receivables | 413 | 428 | 480 | |
| Up to one month | ||||
| Disclosure of detailed information about financial instruments | ||||
| Trade receivables | 210 | 217 | 259 | |
| Two to three months | ||||
| Disclosure of detailed information about financial instruments | ||||
| Trade receivables | 132 | 130 | 130 | |
| Four to six months | ||||
| Disclosure of detailed information about financial instruments | ||||
| Trade receivables | 52 | 57 | 56 | |
| Greater than six months | ||||
| Disclosure of detailed information about financial instruments | ||||
| Trade receivables | £ 19 | £ 24 | £ 35 |