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Financial instruments: valuation - Movement in Level 3 portfolios - Assets (Details) - GBP (£) £ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Movement in level 3 assets |  |
At 1 January | £ 202,880 |
At 31 December | 162,882 | £ 202,880
Level 3 |  |
Movement in level 3 assets |  |
At 1 January | 2,052 | 1,723
Amounts recorded in the income statement | 143 | (122)
Amounts recorded in the statement of comprehensive income | (20) | 23
Level 3 transfers in | 726 | 128
Level 3 transfers out | (337) | (109)
Purchases/Originations | 814 | 1,416
Settlements/Other decreases | (115) | (411)
Sales | (958) | (590)
Foreign exchange and other adjustments | 28 | (6)
At 31 December | 2,333 | 2,052
Level 3 | Financial assets, class [member] |  |
Movement in level 3 assets |  |
Amounts recorded in the income statement in respect of balances held at year end - unrealised | 141 | (126)
Level 3 | Trading assets |  |
Movement in level 3 assets |  |
At 1 January | 1,658 | 1,388
Amounts recorded in the income statement | 157 | (93)
Amounts recorded in the statement of comprehensive income | 0 | 0
Level 3 transfers in | 194 | 125
Level 3 transfers out | (269) | (104)
Purchases/Originations | 629 | 965
Settlements/Other decreases | (115) | (47)
Sales | (857) | (573)
Foreign exchange and other adjustments | 6 | (3)
At 31 December | 1,403 | 1,658
Amounts recorded in the income statement in respect of balances held at year end - unrealised | 157 | (93)
Level 3 | Financial assets, other |  |
Movement in level 3 assets |  |
At 1 January | 394 | 335
Amounts recorded in the income statement | (14) | (29)
Amounts recorded in the statement of comprehensive income | (20) | 23
Level 3 transfers in | 532 | 3
Level 3 transfers out | (68) | (6)
Purchases/Originations | 185 | 452
Settlements/Other decreases |  | (364)
Sales | (101) | (17)
Foreign exchange and other adjustments | 22 | (3)
At 31 December | 930 | 394
Amounts recorded in the income statement in respect of balances held at year end - unrealised | £ (16) | £ (32)

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