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Discontinued operations and assets and liabilities of disposal groups - Profit (loss) from discontinued operations, net of tax (Details) - GBP (£) £ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Disclosure of analysis of single amount of discontinued operations [line items] |  |  |  |  |  |
Interest receivable |  | £ 12,637 | £ 9,234 | [1] | £ 9,711 | [1]
Net interest income |  | 9,842 | 7,535 | [1] | 7,389 | [1]
Non-interest income |  | 3,314 | 2,894 | [1] | 3,014 | [1]
Total income |  | 13,156 | 10,429 | [1] | 10,403 | [1]
Operating expenses |  | (7,687) | (7,758) | [1] | (7,858) | [1]
Profit before impairment losses/releases |  | 5,469 | 2,671 | [1] | 2,545 | [1]
Impairment releases |  | 337 | (1,173) | [1] | 3,098 | [1]
Operating (loss)/profit before tax |  | 5,132 | 3,844 | [1] | (553) | [1]
(Loss)/profit from discontinued operations, net of tax | [2] | (262) | 464 | [1] | 193 | [1]
Discontinued operations |  |  |  |  |  |
Disclosure of analysis of single amount of discontinued operations [line items] |  |  |  |  |  |
Interest receivable |  | 177 | 339 |  | 360 |
Net interest income |  | 177 | 339 |  | 360 |
Non-interest income |  | (472) | 13 |  | 33 |
Total income |  | (295) | 352 |  | 393 |
Operating expenses |  | (38) | (47) |  | (47) |
Profit before impairment losses/releases |  | (333) | 305 |  | 346 |
Impairment releases |  | (71) | (162) |  | 144 |
Operating (loss)/profit before tax |  | (262) | 467 |  | 202 |
Tax charge |  |  | (3) |  | (9) |
(Loss)/profit from discontinued operations, net of tax |  | £ (262) | £ 464 |  | £ 193 |
[1] | Comparative results have been re-presented from those previously published to reclassify certain items as discontinued operations as described in Note 8 to the consolidated financial statements.
[2] | The results of discontinued operations, comprising the post-tax profit, is shown as a single amount on the face of the income statement. An analysis of this amount is presented in Note 8 to the consolidated financial statements.

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