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Provisions (Tables)
12 Months Ended
Dec. 31, 2023
Disclosure of other provisions [abstract]  
Schedule of Assumptions for Other Provisions
Provisions
for financial
commitments
and guarantees
£m
Regulatory
and legal
provisions
£m
Other1
£m
Total
£m
At 1 January 2023
323 803 677 1,803 
Exchange and other adjustments(1)5 3 7 
Provisions applied (378)(372)(750)
Charge for the year 675 342 1,017 
At 31 December 2023322 1,105 650 2,077 
1    Restated for the adoption of IFRS 17; see notes 1 and 54.