Disclosure Of Fair Value Measurement [Text Block]
| Concept |
2023-01-01 to 2023-12-31 |
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As at 2021-12-31 |
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| Disclosure of fair value measurement [text block] |
|
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| 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 | — |
189,622,000,000
GBP
|
— | — | — | — | — | — | — | — |
191,158,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
219,383,000,000
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 | — |
185,538,000,000
GBP
|
— | — | — | — | — | — | — | — |
186,847,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
212,119,000,000
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 | — |
4,084,000,000
GBP
|
15,223,000,000
GBP
|
11,633,000,000
GBP
|
43,000,000
GBP
|
379,000,000
GBP
|
119,000,000
GBP
|
21,000,000
GBP
|
4,041,000,000
GBP
|
26,000,000
GBP
|
4,311,000,000
GBP
|
11,613,000,000
GBP
|
48,000,000
GBP
|
370,000,000
GBP
|
15,504,000,000
GBP
|
47,000,000
GBP
|
119,000,000
GBP
|
4,263,000,000
GBP
|
70,000,000
GBP
|
7,215,000,000
GBP
|
18,469,000,000
GBP
|
370,000,000
GBP
|
130,000,000
GBP
|
49,000,000
GBP
|
7,264,000,000
GBP
|
1,000,000
GBP
|
11,660,000,000
GBP
|
93,000,000
GBP
|
1,000,000
GBP
|
5,345,000,000
GBP
|
1,919,000,000
GBP
|
—
GBP
|
1,919,000,000
GBP
|
—
GBP
|
1,919,000,000
GBP
|
7,264,000,000
GBP
|
—
GBP
|
370,000,000
GBP
|
11,660,000,000
GBP
|
16,550,000,000
GBP
|
5,296,000,000
GBP
|
49,000,000
GBP
|
130,000,000
GBP
|
—
GBP
|
—
GBP
|
—
GBP
|
93,000,000
GBP
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |