Disclosure Of Fair Value Measurement [Text Block]
| Concept |
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As at 2020-12-31 |
As at 2020-12-31 |
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As at 2020-12-31 |
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As at 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
4 6 , 4 17
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
5 0 , 74 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 |
44,869,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
49, 0 01
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, 5 4 8
GBP
|
1,000,000
GBP
|
58,000,000
GBP
|
346,000,000
GBP
|
41,000,000
GBP
|
989,000,000
GBP
|
11 5
GBP
|
–
GBP
|
–
GBP
|
1, 4 8 2
GBP
|
17,000,000
GBP
|
1,000,000
GBP
|
1,7 3 9
GBP
|
–
GBP
|
25,000,000
GBP
|
58,000,000
GBP
|
42,000,000
GBP
|
116,000,000
GBP
|
–
GBP
|
1, 49 5
GBP
|
12 5
GBP
|
149,000,000
GBP
|
1,000,000
GBP
|
58,000,000
GBP
|
42,000,000
GBP
|
1,87 8
GBP
|
8,000,000
GBP
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |