Disclosure Of Analysis Of Other Comprehensive Income By Item [Text Block]
| Concept |
2021-01-01 to 2021-12-31 |
2020-01-01 to 2020-12-31 |
|---|---|---|
| Disclosure of analysis of other comprehensive income by item [text block] | — | — |
| Disclosure of analysis of other comprehensive income by item [abstract] | ||
| Disclosure of analysis of other comprehensive income by item [line items] | ||
| Other comprehensive income, net of tax, exchange differences on translation of foreign operations |
1 3
GBP
|
3,000,000
GBP
|
| Other comprehensive income, net of tax, gains (losses) on remeasurements of defined benefit plans |
52,000,000
GBP
|
9 4
GBP
|