XML 58 R51.htm IDEA: XBRL DOCUMENT v3.24.2
Financial instruments: valuation - Level 3 Sensitivities of Liabilities (Details) - GBP (£)
£ in Millions
6 Months Ended 12 Months Ended
Jun. 30, 2024
Dec. 31, 2023
Jun. 30, 2023
Dec. 31, 2022
Fair value of liabilities        
Specified target level of certainty for assumptions of unobservable inputs 90.00%      
At fair value        
Fair value of liabilities        
Liabilities £ 118,533 £ 129,156    
At fair value | Trading deposits        
Fair value of liabilities        
Liabilities 44,151 43,127    
At fair value | Short positions, trading        
Fair value of liabilities        
Liabilities 9,709 9,803    
At fair value | Interest rate        
Fair value of liabilities        
Liabilities 35,138 38,483    
At fair value | Foreign exchange        
Fair value of liabilities        
Liabilities 25,441 33,586    
At fair value | Other derivatives        
Fair value of liabilities        
Liabilities 270 326    
At fair value | Debt securities in issue        
Fair value of liabilities        
Liabilities 1,639 1,608    
At fair value | Other deposits        
Fair value of liabilities        
Liabilities 1,649 1,280    
At fair value | Level 3        
Fair value of liabilities        
Liabilities 686 691 £ 897 £ 976
Sensitivity favourable 20 20    
Sensitivity unfavourable (40) 20    
At fair value | Level 3 | Trading deposits        
Fair value of liabilities        
Liabilities   1    
At fair value | Level 3 | Short positions, trading        
Fair value of liabilities        
Liabilities 2 2    
At fair value | Level 3 | Derivatives        
Fair value of liabilities        
Liabilities 658 685 £ 895 £ 975
At fair value | Level 3 | Interest rate        
Fair value of liabilities        
Liabilities 440 439    
Sensitivity favourable 10 10    
Sensitivity unfavourable (10) (10)    
At fair value | Level 3 | Foreign exchange        
Fair value of liabilities        
Liabilities 67 58    
At fair value | Level 3 | Other derivatives        
Fair value of liabilities        
Liabilities 151 188    
Sensitivity favourable 10 10    
Sensitivity unfavourable (10) (10)    
At fair value | Level 3 | Debt securities in issue        
Fair value of liabilities        
Liabilities 3 £ 3    
At fair value | Level 3 | Other deposits        
Fair value of liabilities        
Liabilities 23      
Sensitivity unfavourable £ (20)