v3.25.2
Fair values of financial instruments carried at fair value - Transfers between Level 1 and Level 2 fair values (Details) - GBP (£)
£ in Millions
6 Months Ended 12 Months Ended
Jun. 30, 2025
Dec. 31, 2024
Trading liabilities    
Liabilities    
Transfers from Level 1 to Level 2 £ 61 £ 84
Transfers from Level 2 to Level 1 109 54
Designated at fair value    
Liabilities    
Transfers from Level 1 to Level 2 0 0
Transfers from Level 2 to Level 1 0 0
Derivatives    
Liabilities    
Transfers from Level 1 to Level 2 0 0
Transfers from Level 2 to Level 1 0 0
Financial investments    
Assets    
Transfers from Level 1 to Level 2 0 10
Transfers from Level 2 to Level 1 0 30
Trading assets    
Assets    
Transfers from Level 1 to Level 2 217 320
Transfers from Level 2 to Level 1 352 577
Designated and otherwise mandatorily measured at fair value through profit or loss    
Assets    
Transfers from Level 1 to Level 2 0 0
Transfers from Level 2 to Level 1 0 0
Derivatives    
Assets    
Transfers from Level 1 to Level 2 0 0
Transfers from Level 2 to Level 1 £ 0 £ 0