Disclosure Of Fair Value Measurement [Text Block]
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As at 2025-02-01 |
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As at 2024-02-03 |
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As at 2023-01-27 |
As at 2023-01-27 |
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| 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 |
9,954,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
8,048,000,000
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 |
6,582,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
5,179,000,000
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 |
3,372,000,000
GBP
|
3,000,000
GBP
|
468,000,000
GBP
|
2,633,000,000
GBP
|
2,922,000,000
GBP
|
450,000,000
GBP
|
277,000,000
GBP
|
4,000,000
GBP
|
91,000,000
GBP
|
468,000,000
GBP
|
2,214,000,000
GBP
|
3,000,000
GBP
|
71,000,000
GBP
|
2,457,000,000
GBP
|
302,000,000
GBP
|
3,000,000
GBP
|
2,869,000,000
GBP
|
412,000,000
GBP
|
1,975,000,000
GBP
|
425,000,000
GBP
|
468,000,000
GBP
|
97,000,000
GBP
|
2,118,000,000
GBP
|
–
GBP
|
3,000,000
GBP
|
514,000,000
GBP
|
2,632,000,000
GBP
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |