Disclosure Of Fair Value Measurement [Text Block]
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As at 2022-12-31 |
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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 | — | — | — | — | — | — |
3 8 ,1 4 2
GBP
|
32 ,0 6 4
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 | — | — | — | — | — | — |
26 , 3 65
GBP
|
2 1, 3 4 1
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 |
3, 836
GBP
|
1, 2 53
GBP
|
80,000,000
GBP
|
161,000,000
GBP
|
11 , 6 1 6
GBP
|
6 , 4 47
GBP
|
1 1 ,777
GBP
|
10,723,000,000
GBP
|
2, 822
GBP
|
6 , 4 03
GBP
|
16 4
GBP
|
1, 2 5 3
GBP
|
81,000,000
GBP
|
10, 559
GBP
|
11, 4 0 0
GBP
|
6 , 9 51
GBP
|
18 5
GBP
|
1, 2 5 2
GBP
|
2, 93 0
GBP
|
82,000,000
GBP
|
11 , 2 1 5
GBP
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |