Disclosure Of Fair Value Measurement [Text Block]
| Concept |
2023-01-01 to 2023-12-31 |
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 |
As at 2023-12-31 |
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As at 2022-12-31 |
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As at 2022-12-31 |
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As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
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As at 2021-12-31 |
As at 2021-12-31 |
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| Disclosure of fair value measurement [text block] |
Fair value measurements recognised in the Balance Sheet
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 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 | — |
6,929,000,000
GBP
|
— | — | — | — | — | — | — | — | — |
13,987,000,000
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 | — |
3,362,000,000
GBP
|
— | — | — | — | — | — | — | — | — |
6,819,000,000
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 | — |
3,567,000,000
GBP
|
1,182,000,000
GBP
|
753,000,000
GBP
|
2,330,000,000
GBP
|
–
GBP
|
3,271,000,000
GBP
|
309,000,000
GBP
|
273,000,000
GBP
|
109,000,000
GBP
|
3,567,000,000
GBP
|
7,168,000,000
GBP
|
2,330,000,000
GBP
|
39,000,000
GBP
|
3,271,000,000
GBP
|
753,000,000
GBP
|
4,379,000,000
GBP
|
309,000,000
GBP
|
638,000,000
GBP
|
7,129,000,000
GBP
|
109,000,000
GBP
|
5,319,000,000
GBP
|
729,000,000
GBP
|
2,330,000,000
GBP
|
7,540,000,000
GBP
|
109,000,000
GBP
|
7,507,000,000
GBP
|
33,000,000
GBP
|
3,271,000,000
GBP
|
76,000,000
GBP
|
333,000,000
GBP
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |