Disclosure Of Financial Instruments [Text Block]
| Concept |
2022-04-05 to 2023-04-04 |
2021-04-05 to 2022-04-04 |
|---|---|---|
| Disclosure of financial instruments [text block] | — | — |
| Description of accounting policy for financial instruments [text block] |
|
— |
| Income, expense, gains or losses of financial instruments [abstract] | ||
| Gains (losses) on financial instruments [abstract] | ||
| Other comprehensive income, before tax, gains (losses) from investments in equity instruments |
3,000,000
GBP
|
10,000,000
GBP
|
| Other comprehensive income, before tax, financial assets measured at fair value through other comprehensive income | — | — |
| Gains (losses) on financial assets measured at fair value through other comprehensive income, before tax |
66,000,000
GBP
|
12,000,000
GBP
|
| Reclassification adjustments on financial assets measured at fair value through other comprehensive income, before tax |
74,000,000
GBP
|
48,000,000
GBP
|
| Disclosure of general hedge accounting [text block] | — | — |
| Disclosure of information about amounts that affected statement of comprehensive income as result of hedge accounting [text block] | — | — |
| Disclosure of information about amounts that affected statement of comprehensive income as result of hedge accounting [abstract] | ||
| Disclosure of information about amounts that affected statement of comprehensive income as result of hedge accounting [line items] | ||
| Hedging gains (losses) for hedge of group of items with offsetting risk positions |
4,000,000
GBP
|
7,000,000
GBP
|