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Net trading income (Table)
 12 Months Ended
Dec. 31, 2022
Trading income (expense) [abstract]  
Net trading income
202220212020
£m£m£m
Net gains on financial instruments held for trading5,6033,9995,392
Net gains on financial instruments designated at fair value501682695
Net gains on financial instruments mandatorily at fair value1,5201,107989
Net trading income7,6245,7887,076