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Reserves (Table)
 12 Months Ended
Dec. 31, 2022
Disclosure of reserves within equity [abstract]  
Other reserves
Barclays Bank Group
20222021
£m£m
Currency translation reserve4,9922,581
Fair value through other comprehensive income reserve(1,342)(118)
Cash flow hedging reserve(5,557)(618)
Own credit reserve467(960)
Other reserves(24)(24)
Total(1,464)861