Disclosure Of Analysis Of Other Comprehensive Income By Item [Text Block]
| Concept |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
|---|---|---|---|---|---|---|
| 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 |
4,000,000
GBP
|
— |
4,000,000
GBP
|
— |
1,000,000
GBP
|
1,000,000
GBP
|
| Other comprehensive income, net of tax, gains (losses) on remeasurements of defined benefit plans | — |
8,000,000
GBP
|
8,000,000
GBP
|
2,000,000
GBP
|
— |
2,000,000
GBP
|