v3.25.4

Liquidity risk - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments (Details) - GBP (£) £ in Millions | Dec. 31, 2025 | Dec. 31, 2024
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FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Contingent liabilities | £ 3,009 | £ 2,605
Commitments | 157,574 | 148,619
Total contingents, commitments and financial guarantees | 160,583 | 151,224
Lending commitments and financial guarantees |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Commitments | 157,479 | 148,508
Other commitments |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Commitments | 95 | 111
Up to 1 month £m |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Contingent liabilities | 312 | 232
Commitments | 143,601 | 134,377
Total contingents, commitments and financial guarantees | 143,913 | 134,609
Up to 1 month £m | Lending commitments and financial guarantees |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Commitments | 143,506 | 134,283
Up to 1 month £m | Other commitments |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Commitments | 95 | 94
1 to 3 months £m |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Contingent liabilities | 561 | 368
Commitments | 1,553 | 1,422
Total contingents, commitments and financial guarantees | 2,114 | 1,790
1 to 3 months £m | Lending commitments and financial guarantees |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Commitments | 1,553 | 1,416
1 to 3 months £m | Other commitments |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Commitments | 0 | 6
3 to 6 months £m |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Contingent liabilities | 368 | 228
Commitments | 1,057 | 1,740
Total contingents, commitments and financial guarantees | 1,425 | 1,968
3 to 6 months £m | Lending commitments and financial guarantees |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Commitments | 1,057 | 1,729
3 to 6 months £m | Other commitments |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Commitments | 0 | 11
6 to 9 months £m |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Contingent liabilities | 86 | 116
Commitments | 2,061 | 1,562
Total contingents, commitments and financial guarantees | 2,147 | 1,678
6 to 9 months £m | Lending commitments and financial guarantees |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Commitments | 2,061 | 1,562
6 to 9 months £m | Other commitments |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Commitments | 0 | 0
9 to 12 months £m |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Contingent liabilities | 290 | 370
Commitments | 2,341 | 3,367
Total contingents, commitments and financial guarantees | 2,631 | 3,737
9 to 12 months £m | Lending commitments and financial guarantees |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Commitments | 2,341 | 3,367
9 to 12 months £m | Other commitments |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Commitments | 0 | 0
1 to 3 years £m |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Contingent liabilities | 691 | 547
Commitments | 3,468 | 2,755
Total contingents, commitments and financial guarantees | 4,159 | 3,302
1 to 3 years £m | Lending commitments and financial guarantees |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Commitments | 3,468 | 2,755
1 to 3 years £m | Other commitments |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Commitments | 0 | 0
3 to 5 years £m |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Contingent liabilities | 364 | 211
Commitments | 3,058 | 3,140
Total contingents, commitments and financial guarantees | 3,422 | 3,351
3 to 5 years £m | Lending commitments and financial guarantees |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Commitments | 3,058 | 3,140
3 to 5 years £m | Other commitments |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Commitments | 0 | 0
Over 5 years £m |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Contingent liabilities | 337 | 533
Commitments | 435 | 256
Total contingents, commitments and financial guarantees | 772 | 789
Over 5 years £m | Lending commitments and financial guarantees |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Commitments | 435 | 256
Over 5 years £m | Other commitments |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Commitments | 0 | 0
Acceptances and endorsements |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Contingent liabilities | 105 | 39
Acceptances and endorsements | Up to 1 month £m |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Contingent liabilities | 97 | 24
Acceptances and endorsements | 1 to 3 months £m |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Contingent liabilities | 6 | 11
Acceptances and endorsements | 3 to 6 months £m |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Contingent liabilities | 2 | 3
Acceptances and endorsements | 6 to 9 months £m |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Contingent liabilities | 0 | 1
Acceptances and endorsements | 9 to 12 months £m |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Contingent liabilities | 0 | 0
Acceptances and endorsements | 1 to 3 years £m |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Contingent liabilities | 0 | 0
Acceptances and endorsements | 3 to 5 years £m |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Contingent liabilities | 0 | 0
Acceptances and endorsements | Over 5 years £m |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Contingent liabilities | 0 | 0
Other contingent liabilities |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Contingent liabilities | 2,904 | 2,566
Other contingent liabilities | Up to 1 month £m |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Contingent liabilities | 215 | 208
Other contingent liabilities | 1 to 3 months £m |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Contingent liabilities | 555 | 357
Other contingent liabilities | 3 to 6 months £m |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Contingent liabilities | 366 | 225
Other contingent liabilities | 6 to 9 months £m |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Contingent liabilities | 86 | 115
Other contingent liabilities | 9 to 12 months £m |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Contingent liabilities | 290 | 370
Other contingent liabilities | 1 to 3 years £m |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Contingent liabilities | 691 | 547
Other contingent liabilities | 3 to 5 years £m |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Contingent liabilities | 364 | 211
Other contingent liabilities | Over 5 years £m |  |
FINANCIAL RISK MANAGEMENT (Details) - Schedule of Amounts and Residual Maturities of the Group's Off Balance Sheet Contingent Liabilities and Commitments [Line Items] |  |
Contingent liabilities | £ 337 | £ 533

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