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 |
1 , 8 1 7. 7
GBP
|
— | — | — | — | — | — | — |
1,948 .0
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 |
501 .8
GBP
|
— | — | — | — | — | — | — |
5 11 .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 |
1, 315. 9
GBP
|
1,030,000,000
GBP
|
1,200,000
GBP
|
2 31.4
GBP
|
5,300,000
GBP
|
4 3.0
GBP
|
3 .1
GBP
|
1,900,000
GBP
|
1,436. 9
GBP
|
231,400,000
GBP
|
1,000,000
GBP
|
1 ,113 .0
GBP
|
5,500,000
GBP
|
86 .0
GBP
|
3 .1
GBP
|
3 .1
GBP
|
9 5 7. 6
GBP
|
0 .7
GBP
|
1,26 1. 3
GBP
|
3. 5
GBP
|
3,100,000
GBP
|
2 31.4
GBP
|
66,200,000
GBP
|
5,800,000
GBP
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |