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Financial Instruments - maturity analysis - Residual Maturity (Details) - GBP (£) £ in Millions | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Deposits by banks |  |
Financial instruments |  |
Financial Liabilities | £ 20,441 | £ 26,279
Derivatives [Member] |  |
Financial instruments |  |
Financial Liabilities | 94,047 | 100,835
Customer accounts |  |
Financial instruments |  |
Financial Liabilities | 450,318 | 479,810
Settlement balances and short positions |  |
Financial instruments |  |
Financial Liabilities | 2,012 | 2,068
Trading liabilities |  |
Financial instruments |  |
Financial Liabilities | 52,808 | 64,598
Financial liabilities (other) |  |
Financial instruments |  |
Financial Liabilities | 49,107 | 49,326
Financial liabilities, subordinated |  |
Financial instruments |  |
Financial Liabilities | 6,260 | 8,429
Notes in circulation |  |
Financial instruments |  |
Financial Liabilities | 3,218 | 3,047
Lease liabilities. |  |
Financial instruments |  |
Financial Liabilities | 1,118 | 1,263
Less than 12 months | Deposits by banks |  |
Financial instruments |  |
Financial Liabilities | 7,799 | 13,715
Less than 12 months | Derivatives [Member] |  |
Financial instruments |  |
Financial Liabilities | 39,331 | 34,593
Less than 12 months | Customer accounts |  |
Financial instruments |  |
Financial Liabilities | 448,821 | 478,801
Less than 12 months | Settlement balances and short positions |  |
Financial instruments |  |
Financial Liabilities | 2,012 | 2,068
Less than 12 months | Trading liabilities |  |
Financial instruments |  |
Financial Liabilities | 42,760 | 41,664
Less than 12 months | Financial liabilities (other) |  |
Financial instruments |  |
Financial Liabilities | 13,796 | 16,060
Less than 12 months | Financial liabilities, subordinated |  |
Financial instruments |  |
Financial Liabilities | 973 | 1,375
Less than 12 months | Notes in circulation |  |
Financial instruments |  |
Financial Liabilities | 3,218 | 3,047
Less than 12 months | Lease liabilities. |  |
Financial instruments |  |
Financial Liabilities | 137 | 238
More than 12 months | Deposits by banks |  |
Financial instruments |  |
Financial Liabilities | 12,642 | 12,564
More than 12 months | Derivatives [Member] |  |
Financial instruments |  |
Financial Liabilities | 54,716 | 66,242
More than 12 months | Customer accounts |  |
Financial instruments |  |
Financial Liabilities | 1,497 | 1,009
More than 12 months | Trading liabilities |  |
Financial instruments |  |
Financial Liabilities | 10,048 | 22,934
More than 12 months | Financial liabilities (other) |  |
Financial instruments |  |
Financial Liabilities | 35,311 | 33,266
More than 12 months | Financial liabilities, subordinated |  |
Financial instruments |  |
Financial Liabilities | 5,287 | 7,054
More than 12 months | Lease liabilities. |  |
Financial instruments |  |
Financial Liabilities | 981 | 1,025
Cash and balances at central banks |  |
Financial instruments |  |
Financial Assets | 144,832 | 177,757
Cash and balances at central banks | Less than 12 months |  |
Financial instruments |  |
Financial Assets | 144,832 | 177,757
Trading assets |  |
Financial instruments |  |
Financial Assets | 45,577 | 59,158
Trading assets | Less than 12 months |  |
Financial instruments |  |
Financial Assets | 35,944 | 40,263
Trading assets | More than 12 months |  |
Financial instruments |  |
Financial Assets | 9,633 | 18,895
Derivatives [Member] |  |
Financial instruments |  |
Financial Assets | 99,545 | 106,139
Derivatives [Member] | Less than 12 months |  |
Financial instruments |  |
Financial Assets | 38,107 | 34,538
Derivatives [Member] | More than 12 months |  |
Financial instruments |  |
Financial Assets | 61,438 | 71,601
Settlement balances |  |
Financial instruments |  |
Financial Assets | 2,572 | 2,141
Settlement balances | Less than 12 months |  |
Financial instruments |  |
Financial Assets | 2,572 | 2,141
Loans and advances to banks [Member] | Financial assets at amortised cost |  |
Financial instruments |  |
Financial Assets | 7,139 | 7,682
Loans and advances to banks [Member] | Less than 12 months | Financial assets at amortised cost |  |
Financial instruments |  |
Financial Assets | 6,872 | 7,425
Loans and advances to banks [Member] | More than 12 months | Financial assets at amortised cost |  |
Financial instruments |  |
Financial Assets | 267 | 257
Loans and advances to customers [Member] | Financial assets at amortised cost |  |
Financial instruments |  |
Financial Assets | 366,340 | 358,990
Loans and advances to customers [Member] | Less than 12 months | Financial assets at amortised cost |  |
Financial instruments |  |
Financial Assets | 84,289 | 103,689
Loans and advances to customers [Member] | More than 12 months | Financial assets at amortised cost |  |
Financial instruments |  |
Financial Assets | 282,051 | 255,301
Financial assets (Other) |  |
Financial instruments |  |
Financial Assets | 30,895 | 46,145
Financial assets (Other) | Less than 12 months |  |
Financial instruments |  |
Financial Assets | 6,128 | 11,151
Financial assets (Other) | More than 12 months |  |
Financial instruments |  |
Financial Assets | £ 24,767 | £ 34,994

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