Disclosure Of Fair Value Measurement [Text Block]
| Concept |
As at 2021-12-31 |
As at 2020-12-31 |
As at 2019-12-31 |
|---|---|---|---|
| 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 |
2,538,500,000
GBP
|
2,461,000,000
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 |
1,207,800,000
GBP
|
1,190,400,000
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 |
1,330,700,000
GBP
|
1,270,600,000
GBP
|
1,202,400,000
GBP
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |