v3.25.4
Fair value of financial instruments - Disclosure of assets and liabilities held at fair value disaggregated by valuation technique (Details) - GBP (£)
£ in Millions
Dec. 31, 2025
Dec. 31, 2024
Assets    
Trading portfolio assets £ 189,743 £ 166,244
Financial assets at fair value through the income statement 185,002 191,845
Derivative financial assets 252,192 292,356
Financial assets at fair value through other comprehensive income 42,818 51,010
Liabilities    
Trading Portfolio Liabilities (56,829) (56,182)
Financial liabilities designated at fair value (293,527) (279,777)
Derivative financial liabilities (240,757) (279,331)
At fair value    
Assets    
Trading portfolio assets 189,743 166,244
Financial assets at fair value through the income statement 185,002 191,845
Derivative financial assets 252,192 292,356
Financial assets at fair value through other comprehensive income 42,818 51,010
Investment property 43 9
Total assets 669,798 701,464
Liabilities    
Trading Portfolio Liabilities (56,829) (56,182)
Financial liabilities designated at fair value (293,527) (279,777)
Derivative financial liabilities (240,757) (279,331)
Total liabilities (591,113) (615,290)
Level 1 | At fair value    
Assets    
Trading portfolio assets 110,773 77,581
Financial assets at fair value through the income statement 5,015 3,463
Derivative financial assets 108 101
Financial assets at fair value through other comprehensive income 31,640 19,021
Investment property 0 0
Total assets 147,536 100,166
Liabilities    
Trading Portfolio Liabilities (42,009) (27,033)
Financial liabilities designated at fair value (1,702) (181)
Derivative financial liabilities (93) (86)
Total liabilities (43,804) (27,300)
Level 2 | At fair value    
Assets    
Trading portfolio assets 68,623 78,548
Financial assets at fair value through the income statement 173,801 182,391
Derivative financial assets 250,374 290,182
Financial assets at fair value through other comprehensive income 8,110 28,315
Investment property 0 0
Total assets 500,908 579,436
Liabilities    
Trading Portfolio Liabilities (14,733) (28,754)
Financial liabilities designated at fair value (286,972) (276,355)
Derivative financial liabilities (237,599) (276,064)
Total liabilities (539,304) (581,173)
Level 3    
Assets    
Trading portfolio assets 10,347 10,115
Financial assets at fair value through the income statement 6,186 5,991
Derivative financial assets 1,710 2,073
Financial assets at fair value through other comprehensive income 3,068 3,674
Investment property 43 9
Total assets 21,354 21,862
Liabilities    
Trading Portfolio Liabilities (87) (395)
Financial liabilities designated at fair value (4,853) (3,241)
Derivative financial liabilities (3,065) (3,181)
Total liabilities (8,005) (6,817)
Level 3 | At fair value    
Assets    
Trading portfolio assets 10,347 10,115
Financial assets at fair value through the income statement 6,186 5,991
Derivative financial assets 1,710 2,073
Financial assets at fair value through other comprehensive income 3,068 3,674
Investment property 43 9
Total assets 21,354 21,862
Liabilities    
Trading Portfolio Liabilities (87) (395)
Financial liabilities designated at fair value (4,853) (3,241)
Derivative financial liabilities (3,065) (3,181)
Total liabilities £ (8,005) £ (6,817)