Disclosure Of Fair Value Measurement [Text Block]
| Concept |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
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As at 2022-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
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| Disclosure of fair value measurement [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 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 |
1,175,712,000
GBP
|
23,865,000
GBP
|
2,089,965,000
GBP
|
372,224,000
GBP
|
1,258,000
GBP
|
11,443,000
GBP
|
505,463,000
GBP
|
1,248,000
GBP
|
2,005,724,000
GBP
|
712,188,000
GBP
|
885,821,000
GBP
|
35,114,000
GBP
|
359,971,000
GBP
|
11,382,000
GBP
|
240,712,000
GBP
|
10,400,000
GBP
|
219,722,000
GBP
|
1,291,016,000
GBP
|
1,248,000
GBP
|
19,946,000
GBP
|
798,988,000
GBP
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |