Disclosure Of Fair Value Measurement [Text Block]
| Concept |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
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As at 2023-12-31 |
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As at 2022-12-31 |
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As at 2022-12-31 |
As at 2022-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
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As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
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| Disclosure of fair value measurement [text block] |
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— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 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 | — |
32, 064
GBP
|
— | — | — | — | — | — |
31, 4 6 2
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 | — |
21, 3 41
GBP
|
— | — | — | — | — | — |
20,0 62
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 | — |
10 ,72 3
GBP
|
2 ,822
GBP
|
6,403,000,000
GBP
|
16 4
GBP
|
1, 253
GBP
|
81,000,000
GBP
|
10,559,000,000
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
|
212,000,000
GBP
|
5,8 87
GBP
|
7, 6 6 8
GBP
|
7, 4 3 6
GBP
|
1, 2 5 2
GBP
|
232,000,000
GBP
|
85,000,000
GBP
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |