Disclosure Of Fair Value Measurement [Text Block]
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As at 2022-06-30 |
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| Disclosure of fair value measurement [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of fair value measurement of assets [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of fair value measurement of assets [abstract] | |||||||||||||||||||
| Disclosure of fair value measurement of assets [line items] | |||||||||||||||||||
| Assets | — | — |
1,861,419,000
GBP
|
— | — | — | — | — | — |
1,933,727,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Reconciliation of changes in fair value measurement, assets [abstract] | |||||||||||||||||||
| Disclosure of fair value measurement of liabilities [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of fair value measurement of liabilities [abstract] | |||||||||||||||||||
| Disclosure of fair value measurement of liabilities [line items] | |||||||||||||||||||
| Liabilities | — | — |
741,945,000
GBP
|
— | — | — | — | — | — |
716,001,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Reconciliation of changes in fair value measurement, liabilities [abstract] | |||||||||||||||||||
| Disclosure of fair value measurement of equity [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of fair value measurement of equity [abstract] | |||||||||||||||||||
| Disclosure of fair value measurement of equity [line items] | |||||||||||||||||||
| Equity |
500,386,000
GBP
|
24,141,000
GBP
|
1,119,474,000
GBP
|
1,539,000
GBP
|
32,000
GBP
|
629,196,000
GBP
|
12,462,000
GBP
|
2,957,000
GBP
|
500,386,000
GBP
|
1,217,726,000
GBP
|
3,304,000
GBP
|
704,531,000
GBP
|
12,462,000
GBP
|
778,859,000
GBP
|
141,909,000
GBP
|
494,174,000
GBP
|
1,432,455,000
GBP
|
5,114,000
GBP
|
12,399,000
GBP
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |