Disclosure Of Fair Value Measurement [Text Block]
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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 | — |
513,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
5 0 0. 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 | — |
3 5 0. 8
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
324. 5
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 |
1,000,000
GBP
|
162 . 2
GBP
|
700,000
GBP
|
1. 9
GBP
|
25,800,000
GBP
|
135,400,000
GBP
|
0 . 4
GBP
|
2 . 2
GBP
|
1 .0
GBP
|
1 4 7. 6
GBP
|
1,900,000
GBP
|
25,800,000
GBP
|
0. 7
GBP
|
175 .7
GBP
|
0. 2
GBP
|
1. 5
GBP
|
184,600,000
GBP
|
1,900,000
GBP
|
25,800,000
GBP
|
0. 7
GBP
|
0. 3
GBP
|
156. 2
GBP
|
1,000,000
GBP
|
1. 3
GBP
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |