v3.26.1
Credit Risk - Disclosure of loans and advances at amortised cost by product (Details)
£ in Millions
Jun. 30, 2026
GBP (£)
Dec. 31, 2025
GBP (£)
Gross exposure | Retail mortgages    
Disclosure of financial assets [line items]    
Loans and advances £ 181,669 £ 177,450
Gross exposure | Retail credit cards    
Disclosure of financial assets [line items]    
Loans and advances 41,103 40,281
Gross exposure | Retail other    
Disclosure of financial assets [line items]    
Loans and advances 14,771 14,431
Gross exposure | Corporate loans    
Disclosure of financial assets [line items]    
Loans and advances 139,274 134,650
Impairment allowance    
Disclosure of financial assets [line items]    
Loans and advances (5,969) (5,727)
Impairment allowance | Retail mortgages    
Disclosure of financial assets [line items]    
Loans and advances (127) (117)
Impairment allowance | Retail credit cards    
Disclosure of financial assets [line items]    
Loans and advances (3,436) (3,329)
Impairment allowance | Retail other    
Disclosure of financial assets [line items]    
Loans and advances (536) (517)
Impairment allowance | Corporate loans    
Disclosure of financial assets [line items]    
Loans and advances (1,417) (1,326)
Financial assets at amortised cost | Loans and advances    
Disclosure of financial assets [line items]    
Loans and advances £ 371,301 £ 361,523
Coverage ratio 0.015 0.014
Financial assets at amortised cost | Retail mortgages    
Disclosure of financial assets [line items]    
Loans and advances £ 181,542 £ 177,333
Coverage ratio 0.001 0.001
Financial assets at amortised cost | Retail credit cards    
Disclosure of financial assets [line items]    
Loans and advances £ 37,667 £ 36,952
Coverage ratio 0.084 0.083
Financial assets at amortised cost | Retail other    
Disclosure of financial assets [line items]    
Loans and advances £ 14,235 £ 13,914
Coverage ratio 0.036 0.036
Financial assets at amortised cost | Corporate loans    
Disclosure of financial assets [line items]    
Loans and advances £ 137,857 £ 133,324
Coverage ratio 0.010 0.010
Financial assets at amortised cost | Gross exposure | Loans and advances    
Disclosure of financial assets [line items]    
Loans and advances £ 376,817 £ 366,812
Financial assets at amortised cost | Gross exposure | Retail mortgages    
Disclosure of financial assets [line items]    
Loans and advances 181,669 177,450
Financial assets at amortised cost | Gross exposure | Retail credit cards    
Disclosure of financial assets [line items]    
Loans and advances 41,103 40,281
Financial assets at amortised cost | Gross exposure | Retail other    
Disclosure of financial assets [line items]    
Loans and advances 14,771 14,431
Financial assets at amortised cost | Gross exposure | Corporate loans    
Disclosure of financial assets [line items]    
Loans and advances 139,274 134,650
Financial assets at amortised cost | Impairment allowance | Loans and advances    
Disclosure of financial assets [line items]    
Loans and advances (5,516) (5,289)
Financial assets at amortised cost | Impairment allowance | Retail mortgages    
Disclosure of financial assets [line items]    
Loans and advances (127) (117)
Financial assets at amortised cost | Impairment allowance | Retail credit cards    
Disclosure of financial assets [line items]    
Loans and advances (3,436) (3,329)
Financial assets at amortised cost | Impairment allowance | Retail other    
Disclosure of financial assets [line items]    
Loans and advances (536) (517)
Financial assets at amortised cost | Impairment allowance | Corporate loans    
Disclosure of financial assets [line items]    
Loans and advances (1,417) (1,326)
Stage 1 | Gross exposure | Retail mortgages    
Disclosure of financial assets [line items]    
Loans and advances 165,632 161,654
Stage 1 | Gross exposure | Retail credit cards    
Disclosure of financial assets [line items]    
Loans and advances 34,108 33,723
Stage 1 | Gross exposure | Retail other    
Disclosure of financial assets [line items]    
Loans and advances 12,297 12,349
Stage 1 | Gross exposure | Corporate loans    
Disclosure of financial assets [line items]    
Loans and advances 125,692 120,853
Stage 1 | Impairment allowance | Retail mortgages    
Disclosure of financial assets [line items]    
Loans and advances (19) (17)
Stage 1 | Impairment allowance | Retail credit cards    
Disclosure of financial assets [line items]    
Loans and advances (582) (566)
Stage 1 | Impairment allowance | Retail other    
Disclosure of financial assets [line items]    
Loans and advances (110) (101)
Stage 1 | Impairment allowance | Corporate loans    
Disclosure of financial assets [line items]    
Loans and advances (189) (207)
Stage 1 | Financial assets at amortised cost | Loans and advances    
Disclosure of financial assets [line items]    
Loans and advances £ 336,829 £ 327,688
Coverage ratio 0.003 0.003
Stage 1 | Financial assets at amortised cost | Retail mortgages    
Disclosure of financial assets [line items]    
Loans and advances £ 165,613 £ 161,637
Coverage ratio 0 0
Stage 1 | Financial assets at amortised cost | Retail credit cards    
Disclosure of financial assets [line items]    
Loans and advances £ 33,526 £ 33,157
Coverage ratio 0.017 0.017
Stage 1 | Financial assets at amortised cost | Retail other    
Disclosure of financial assets [line items]    
Loans and advances £ 12,187 £ 12,248
Coverage ratio 0.009 0.008
Stage 1 | Financial assets at amortised cost | Corporate loans    
Disclosure of financial assets [line items]    
Loans and advances £ 125,503 £ 120,646
Coverage ratio 0.002 0.002
Stage 1 | Financial assets at amortised cost | Gross exposure | Loans and advances    
Disclosure of financial assets [line items]    
Loans and advances £ 337,729 £ 328,579
Stage 1 | Financial assets at amortised cost | Gross exposure | Retail mortgages    
Disclosure of financial assets [line items]    
Loans and advances 165,632 161,654
Stage 1 | Financial assets at amortised cost | Gross exposure | Retail credit cards    
Disclosure of financial assets [line items]    
Loans and advances 34,108 33,723
Stage 1 | Financial assets at amortised cost | Gross exposure | Retail other    
Disclosure of financial assets [line items]    
Loans and advances 12,297 12,349
Stage 1 | Financial assets at amortised cost | Gross exposure | Corporate loans    
Disclosure of financial assets [line items]    
Loans and advances 125,692 120,853
Stage 1 | Financial assets at amortised cost | Impairment allowance | Loans and advances    
Disclosure of financial assets [line items]    
Loans and advances (900) (891)
Stage 1 | Financial assets at amortised cost | Impairment allowance | Retail mortgages    
Disclosure of financial assets [line items]    
Loans and advances (19) (17)
Stage 1 | Financial assets at amortised cost | Impairment allowance | Retail credit cards    
Disclosure of financial assets [line items]    
Loans and advances (582) (566)
Stage 1 | Financial assets at amortised cost | Impairment allowance | Retail other    
Disclosure of financial assets [line items]    
Loans and advances (110) (101)
Stage 1 | Financial assets at amortised cost | Impairment allowance | Corporate loans    
Disclosure of financial assets [line items]    
Loans and advances (189) (207)
Lifetime expected credit losses | Stage 2 | Gross exposure | Retail mortgages    
Disclosure of financial assets [line items]    
Loans and advances 14,100 13,829
Lifetime expected credit losses | Stage 2 | Gross exposure | Retail credit cards    
Disclosure of financial assets [line items]    
Loans and advances 4,865 4,479
Lifetime expected credit losses | Stage 2 | Gross exposure | Retail other    
Disclosure of financial assets [line items]    
Loans and advances 2,041 1,718
Lifetime expected credit losses | Stage 2 | Gross exposure | Corporate loans    
Disclosure of financial assets [line items]    
Loans and advances 10,388 10,638
Lifetime expected credit losses | Stage 2 | Impairment allowance | Retail mortgages    
Disclosure of financial assets [line items]    
Loans and advances (21) (16)
Lifetime expected credit losses | Stage 2 | Impairment allowance | Retail credit cards    
Disclosure of financial assets [line items]    
Loans and advances (1,215) (1,194)
Lifetime expected credit losses | Stage 2 | Impairment allowance | Retail other    
Disclosure of financial assets [line items]    
Loans and advances (190) (183)
Lifetime expected credit losses | Stage 2 | Impairment allowance | Corporate loans    
Disclosure of financial assets [line items]    
Loans and advances (315) (315)
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Loans and advances    
Disclosure of financial assets [line items]    
Loans and advances £ 29,653 £ 28,956
Coverage ratio 0.055 0.056
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Retail mortgages    
Disclosure of financial assets [line items]    
Loans and advances £ 14,079 £ 13,813
Coverage ratio 0.001 0.001
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Retail credit cards    
Disclosure of financial assets [line items]    
Loans and advances £ 3,650 £ 3,285
Coverage ratio 0.250 0.267
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Retail other    
Disclosure of financial assets [line items]    
Loans and advances £ 1,851 £ 1,535
Coverage ratio 0.093 0.107
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Corporate loans    
Disclosure of financial assets [line items]    
Loans and advances £ 10,073 £ 10,323
Coverage ratio 0.030 0.030
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Not past due | Loans and advances    
Disclosure of financial assets [line items]    
Loans and advances £ 26,175 £ 25,438
Coverage ratio 0.048 0.048
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Not past due | Retail mortgages    
Disclosure of financial assets [line items]    
Loans and advances £ 11,377 £ 11,063
Coverage ratio 0.001 0.001
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Not past due | Retail credit cards    
Disclosure of financial assets [line items]    
Loans and advances £ 3,362 £ 2,992
Coverage ratio 0.210 0.219
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Not past due | Retail other    
Disclosure of financial assets [line items]    
Loans and advances £ 1,589 £ 1,272
Coverage ratio 0.071 0.090
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Not past due | Corporate loans    
Disclosure of financial assets [line items]    
Loans and advances £ 9,847 £ 10,111
Coverage ratio 0.029 0.029
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Not later than 30 days past due | Loans and advances    
Disclosure of financial assets [line items]    
Loans and advances £ 2,454 £ 2,451
Coverage ratio 0.071 0.067
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Not later than 30 days past due | Retail mortgages    
Disclosure of financial assets [line items]    
Loans and advances £ 2,026 £ 2,029
Coverage ratio 0.002 0.002
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Not later than 30 days past due | Retail credit cards    
Disclosure of financial assets [line items]    
Loans and advances £ 192 £ 179
Coverage ratio 0.422 0.435
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Not later than 30 days past due | Retail other    
Disclosure of financial assets [line items]    
Loans and advances £ 154 £ 179
Coverage ratio 0.172 0.135
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Not later than 30 days past due | Corporate loans    
Disclosure of financial assets [line items]    
Loans and advances £ 82 £ 64
Coverage ratio 0.109 0.099
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | >30 days past due | Loans and advances    
Disclosure of financial assets [line items]    
Loans and advances £ 1,024 £ 1,067
Coverage ratio 0.180 0.195
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | >30 days past due | Retail mortgages    
Disclosure of financial assets [line items]    
Loans and advances £ 676 £ 721
Coverage ratio 0.003 0.004
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | >30 days past due | Retail credit cards    
Disclosure of financial assets [line items]    
Loans and advances £ 96 £ 114
Coverage ratio 0.651 0.655
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | >30 days past due | Retail other    
Disclosure of financial assets [line items]    
Loans and advances £ 108 £ 84
Coverage ratio 0.250 0.257
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | >30 days past due | Corporate loans    
Disclosure of financial assets [line items]    
Loans and advances £ 144 £ 148
Coverage ratio 0.053 0.063
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Gross exposure | Loans and advances    
Disclosure of financial assets [line items]    
Loans and advances £ 31,394 £ 30,664
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Gross exposure | Retail mortgages    
Disclosure of financial assets [line items]    
Loans and advances 14,100 13,829
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Gross exposure | Retail credit cards    
Disclosure of financial assets [line items]    
Loans and advances 4,865 4,479
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Gross exposure | Retail other    
Disclosure of financial assets [line items]    
Loans and advances 2,041 1,718
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Gross exposure | Corporate loans    
Disclosure of financial assets [line items]    
Loans and advances 10,388 10,638
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Gross exposure | Not past due | Loans and advances    
Disclosure of financial assets [line items]    
Loans and advances 27,504 26,711
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Gross exposure | Not past due | Retail mortgages    
Disclosure of financial assets [line items]    
Loans and advances 11,391 11,072
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Gross exposure | Not past due | Retail credit cards    
Disclosure of financial assets [line items]    
Loans and advances 4,258 3,832
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Gross exposure | Not past due | Retail other    
Disclosure of financial assets [line items]    
Loans and advances 1,711 1,398
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Gross exposure | Not past due | Corporate loans    
Disclosure of financial assets [line items]    
Loans and advances 10,144 10,409
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Gross exposure | Not later than 30 days past due | Loans and advances    
Disclosure of financial assets [line items]    
Loans and advances 2,641 2,628
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Gross exposure | Not later than 30 days past due | Retail mortgages    
Disclosure of financial assets [line items]    
Loans and advances 2,031 2,033
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Gross exposure | Not later than 30 days past due | Retail credit cards    
Disclosure of financial assets [line items]    
Loans and advances 332 317
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Gross exposure | Not later than 30 days past due | Retail other    
Disclosure of financial assets [line items]    
Loans and advances 186 207
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Gross exposure | Not later than 30 days past due | Corporate loans    
Disclosure of financial assets [line items]    
Loans and advances 92 71
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Gross exposure | >30 days past due | Loans and advances    
Disclosure of financial assets [line items]    
Loans and advances 1,249 1,325
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Gross exposure | >30 days past due | Retail mortgages    
Disclosure of financial assets [line items]    
Loans and advances 678 724
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Gross exposure | >30 days past due | Retail credit cards    
Disclosure of financial assets [line items]    
Loans and advances 275 330
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Gross exposure | >30 days past due | Retail other    
Disclosure of financial assets [line items]    
Loans and advances 144 113
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Gross exposure | >30 days past due | Corporate loans    
Disclosure of financial assets [line items]    
Loans and advances 152 158
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Impairment allowance | Loans and advances    
Disclosure of financial assets [line items]    
Loans and advances (1,741) (1,708)
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Impairment allowance | Retail mortgages    
Disclosure of financial assets [line items]    
Loans and advances (21) (16)
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Impairment allowance | Retail credit cards    
Disclosure of financial assets [line items]    
Loans and advances (1,215) (1,194)
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Impairment allowance | Retail other    
Disclosure of financial assets [line items]    
Loans and advances (190) (183)
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Impairment allowance | Corporate loans    
Disclosure of financial assets [line items]    
Loans and advances (315) (315)
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Impairment allowance | Not past due | Loans and advances    
Disclosure of financial assets [line items]    
Loans and advances (1,329) (1,273)
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Impairment allowance | Not past due | Retail mortgages    
Disclosure of financial assets [line items]    
Loans and advances (14) (9)
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Impairment allowance | Not past due | Retail credit cards    
Disclosure of financial assets [line items]    
Loans and advances (896) (840)
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Impairment allowance | Not past due | Retail other    
Disclosure of financial assets [line items]    
Loans and advances (122) (126)
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Impairment allowance | Not past due | Corporate loans    
Disclosure of financial assets [line items]    
Loans and advances (297) (298)
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Impairment allowance | Not later than 30 days past due | Loans and advances    
Disclosure of financial assets [line items]    
Loans and advances (187) (177)
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Impairment allowance | Not later than 30 days past due | Retail mortgages    
Disclosure of financial assets [line items]    
Loans and advances (5) (4)
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Impairment allowance | Not later than 30 days past due | Retail credit cards    
Disclosure of financial assets [line items]    
Loans and advances (140) (138)
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Impairment allowance | Not later than 30 days past due | Retail other    
Disclosure of financial assets [line items]    
Loans and advances (32) (28)
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Impairment allowance | Not later than 30 days past due | Corporate loans    
Disclosure of financial assets [line items]    
Loans and advances (10) (7)
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Impairment allowance | >30 days past due | Loans and advances    
Disclosure of financial assets [line items]    
Loans and advances (225) (258)
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Impairment allowance | >30 days past due | Retail mortgages    
Disclosure of financial assets [line items]    
Loans and advances (2) (3)
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Impairment allowance | >30 days past due | Retail credit cards    
Disclosure of financial assets [line items]    
Loans and advances (179) (216)
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Impairment allowance | >30 days past due | Retail other    
Disclosure of financial assets [line items]    
Loans and advances (36) (29)
Lifetime expected credit losses | Stage 2 | Financial assets at amortised cost | Impairment allowance | >30 days past due | Corporate loans    
Disclosure of financial assets [line items]    
Loans and advances (8) (10)
Lifetime expected credit losses | Stage 3 excluding POCI | Gross exposure | Retail mortgages    
Disclosure of financial assets [line items]    
Loans and advances 1,937 1,967
Lifetime expected credit losses | Stage 3 excluding POCI | Gross exposure | Retail credit cards    
Disclosure of financial assets [line items]    
Loans and advances 2,117 2,055
Lifetime expected credit losses | Stage 3 excluding POCI | Gross exposure | Retail other    
Disclosure of financial assets [line items]    
Loans and advances 425 349
Lifetime expected credit losses | Stage 3 excluding POCI | Gross exposure | Corporate loans    
Disclosure of financial assets [line items]    
Loans and advances 3,194 3,159
Lifetime expected credit losses | Stage 3 excluding POCI | Impairment allowance | Retail mortgages    
Disclosure of financial assets [line items]    
Loans and advances (87) (84)
Lifetime expected credit losses | Stage 3 excluding POCI | Impairment allowance | Retail credit cards    
Disclosure of financial assets [line items]    
Loans and advances (1,639) (1,569)
Lifetime expected credit losses | Stage 3 excluding POCI | Impairment allowance | Retail other    
Disclosure of financial assets [line items]    
Loans and advances (236) (233)
Lifetime expected credit losses | Stage 3 excluding POCI | Impairment allowance | Corporate loans    
Disclosure of financial assets [line items]    
Loans and advances (913) (804)
Lifetime expected credit losses | Stage 3 excluding POCI | Financial assets at amortised cost | Loans and advances    
Disclosure of financial assets [line items]    
Loans and advances £ 4,798 £ 4,840
Coverage ratio 0.375 0.357
Lifetime expected credit losses | Stage 3 excluding POCI | Financial assets at amortised cost | Retail mortgages    
Disclosure of financial assets [line items]    
Loans and advances £ 1,850 £ 1,883
Coverage ratio 0.045 0.043
Lifetime expected credit losses | Stage 3 excluding POCI | Financial assets at amortised cost | Retail credit cards    
Disclosure of financial assets [line items]    
Loans and advances £ 478 £ 486
Coverage ratio 0.774 0.764
Lifetime expected credit losses | Stage 3 excluding POCI | Financial assets at amortised cost | Retail other    
Disclosure of financial assets [line items]    
Loans and advances £ 189 £ 116
Coverage ratio 0.555 0.668
Lifetime expected credit losses | Stage 3 excluding POCI | Financial assets at amortised cost | Corporate loans    
Disclosure of financial assets [line items]    
Loans and advances £ 2,281 £ 2,355
Coverage ratio 0.286 0.255
Lifetime expected credit losses | Stage 3 excluding POCI | Financial assets at amortised cost | Gross exposure | Loans and advances    
Disclosure of financial assets [line items]    
Loans and advances £ 7,673 £ 7,530
Lifetime expected credit losses | Stage 3 excluding POCI | Financial assets at amortised cost | Gross exposure | Retail mortgages    
Disclosure of financial assets [line items]    
Loans and advances 1,937 1,967
Lifetime expected credit losses | Stage 3 excluding POCI | Financial assets at amortised cost | Gross exposure | Retail credit cards    
Disclosure of financial assets [line items]    
Loans and advances 2,117 2,055
Lifetime expected credit losses | Stage 3 excluding POCI | Financial assets at amortised cost | Gross exposure | Retail other    
Disclosure of financial assets [line items]    
Loans and advances 425 349
Lifetime expected credit losses | Stage 3 excluding POCI | Financial assets at amortised cost | Gross exposure | Corporate loans    
Disclosure of financial assets [line items]    
Loans and advances 3,194 3,159
Lifetime expected credit losses | Stage 3 excluding POCI | Financial assets at amortised cost | Impairment allowance | Loans and advances    
Disclosure of financial assets [line items]    
Loans and advances (2,875) (2,690)
Lifetime expected credit losses | Stage 3 excluding POCI | Financial assets at amortised cost | Impairment allowance | Retail mortgages    
Disclosure of financial assets [line items]    
Loans and advances (87) (84)
Lifetime expected credit losses | Stage 3 excluding POCI | Financial assets at amortised cost | Impairment allowance | Retail credit cards    
Disclosure of financial assets [line items]    
Loans and advances (1,639) (1,569)
Lifetime expected credit losses | Stage 3 excluding POCI | Financial assets at amortised cost | Impairment allowance | Retail other    
Disclosure of financial assets [line items]    
Loans and advances (236) (233)
Lifetime expected credit losses | Stage 3 excluding POCI | Financial assets at amortised cost | Impairment allowance | Corporate loans    
Disclosure of financial assets [line items]    
Loans and advances (913) (804)
Lifetime expected credit losses | Stage 3 POCI | Gross exposure | Retail mortgages    
Disclosure of financial assets [line items]    
Loans and advances 0 0
Lifetime expected credit losses | Stage 3 POCI | Gross exposure | Retail credit cards    
Disclosure of financial assets [line items]    
Loans and advances 13 24
Lifetime expected credit losses | Stage 3 POCI | Gross exposure | Retail other    
Disclosure of financial assets [line items]    
Loans and advances 8 15
Lifetime expected credit losses | Stage 3 POCI | Gross exposure | Corporate loans    
Disclosure of financial assets [line items]    
Loans and advances 0 0
Lifetime expected credit losses | Stage 3 POCI | Impairment allowance | Retail mortgages    
Disclosure of financial assets [line items]    
Loans and advances 0 0
Lifetime expected credit losses | Stage 3 POCI | Impairment allowance | Retail credit cards    
Disclosure of financial assets [line items]    
Loans and advances 0 0
Lifetime expected credit losses | Stage 3 POCI | Impairment allowance | Retail other    
Disclosure of financial assets [line items]    
Loans and advances 0 0
Lifetime expected credit losses | Stage 3 POCI | Impairment allowance | Corporate loans    
Disclosure of financial assets [line items]    
Loans and advances 0 0
Lifetime expected credit losses | Stage 3 POCI | Financial assets at amortised cost | Loans and advances    
Disclosure of financial assets [line items]    
Loans and advances £ 21 £ 39
Coverage ratio 0 0
Lifetime expected credit losses | Stage 3 POCI | Financial assets at amortised cost | Retail mortgages    
Disclosure of financial assets [line items]    
Loans and advances £ 0 £ 0
Coverage ratio 0 0
Lifetime expected credit losses | Stage 3 POCI | Financial assets at amortised cost | Retail credit cards    
Disclosure of financial assets [line items]    
Loans and advances £ 13 £ 24
Coverage ratio 0 0
Lifetime expected credit losses | Stage 3 POCI | Financial assets at amortised cost | Retail other    
Disclosure of financial assets [line items]    
Loans and advances £ 8 £ 15
Coverage ratio 0 0
Lifetime expected credit losses | Stage 3 POCI | Financial assets at amortised cost | Corporate loans    
Disclosure of financial assets [line items]    
Loans and advances £ 0 £ 0
Coverage ratio 0 0
Lifetime expected credit losses | Stage 3 POCI | Financial assets at amortised cost | Gross exposure | Loans and advances    
Disclosure of financial assets [line items]    
Loans and advances £ 21 £ 39
Lifetime expected credit losses | Stage 3 POCI | Financial assets at amortised cost | Gross exposure | Retail mortgages    
Disclosure of financial assets [line items]    
Loans and advances 0 0
Lifetime expected credit losses | Stage 3 POCI | Financial assets at amortised cost | Gross exposure | Retail credit cards    
Disclosure of financial assets [line items]    
Loans and advances 13 24
Lifetime expected credit losses | Stage 3 POCI | Financial assets at amortised cost | Gross exposure | Retail other    
Disclosure of financial assets [line items]    
Loans and advances 8 15
Lifetime expected credit losses | Stage 3 POCI | Financial assets at amortised cost | Gross exposure | Corporate loans    
Disclosure of financial assets [line items]    
Loans and advances 0 0
Lifetime expected credit losses | Stage 3 POCI | Financial assets at amortised cost | Impairment allowance | Loans and advances    
Disclosure of financial assets [line items]    
Loans and advances 0 0
Lifetime expected credit losses | Stage 3 POCI | Financial assets at amortised cost | Impairment allowance | Retail mortgages    
Disclosure of financial assets [line items]    
Loans and advances 0 0
Lifetime expected credit losses | Stage 3 POCI | Financial assets at amortised cost | Impairment allowance | Retail credit cards    
Disclosure of financial assets [line items]    
Loans and advances 0 0
Lifetime expected credit losses | Stage 3 POCI | Financial assets at amortised cost | Impairment allowance | Retail other    
Disclosure of financial assets [line items]    
Loans and advances 0 0
Lifetime expected credit losses | Stage 3 POCI | Financial assets at amortised cost | Impairment allowance | Corporate loans    
Disclosure of financial assets [line items]    
Loans and advances £ 0 £ 0