v3.26.1
OTHER EQUITY INSTRUMENTS (Details)
£ in Millions
6 Months Ended
Jun. 30, 2026
GBP (£)
Dec. 31, 2025
GBP (£)
Debt Securities In Issue [Line Items]    
Other equity interest £ 2,060 £ 1,860
- £210m Perpetual Capital Securities    
Debt Securities In Issue [Line Items]    
Capital securities £ 210  
Interest rate 0.0425  
Other equity interest £ 0 210
- £750m Perpetual Capital Securities    
Debt Securities In Issue [Line Items]    
Capital securities £ 750  
Interest rate 0.0650  
Other equity interest £ 750 750
- £400m Perpetual Capital Securities    
Debt Securities In Issue [Line Items]    
Capital securities £ 400  
Interest rate 0.0875  
Other equity interest £ 400 400
- £500m Fixed Rate Reset Perpetual Capital Securities    
Debt Securities In Issue [Line Items]    
Capital securities £ 500  
Interest rate 0.0763  
Other equity interest £ 500 500
- £410m Perpetual Capital Securities    
Debt Securities In Issue [Line Items]    
Capital securities £ 410  
Interest rate 0.0675  
Other equity interest £ 410 £ 0