Disclosure Of Fair Value Measurement [Text Block]
| Concept |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
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 |
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As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
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 |
34,055,000,000
GBP
|
— | — | — | — | — | — |
34,815,000,000
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 |
17,326,000,000
GBP
|
— | — | — | — | — | — |
18,358,000,000
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 |
16,729,000,000
GBP
|
27,474,000,000
GBP
|
10,960,000,000
GBP
|
123,000,000
GBP
|
—
GBP
|
92,000,000
GBP
|
16,606,000,000
GBP
|
16,457,000,000
GBP
|
10,491,000,000
GBP
|
126,000,000
GBP
|
—
GBP
|
26,730,000,000
GBP
|
92,000,000
GBP
|
16,331,000,000
GBP
|
37,538,000,000
GBP
|
11,184,000,000
GBP
|
26,480,000,000
GBP
|
26,355,000,000
GBP
|
—
GBP
|
125,000,000
GBP
|
1,000,000
GBP
|
37,281,000,000
GBP
|
111,000,000
GBP
|
26,112,000,000
GBP
|
1,000,000
GBP
|
11,170,000,000
GBP
|
—
GBP
|
26,223,000,000
GBP
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |