v3.25.4

Derivative financial instruments - Schedule of Movements in Cash Flow Hedges (Details) - Cash flow hedges - GBP (£) £ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
DERIVATIVE FINANCIAL INSTRUMENTS (Details) - Schedule of amounts reclassified from reserves to income statement [Line Items] |  |  |
Gain (loss) recognised in other comprehensive income £m | £ 482 | £ (2,577) |
Hedged cash flows that will no longer occur £m | 0 | 0 |
Hedged item affected income statement £m | 1,869 | 2,597 |
Reserve of exchange differences on translation, continuing hedges | (743) | (2,815) |
Cash flow hedge/currency translation reserve, discontinued hedges | (2,121) | (2,401) |
Change in fair value of hedged item for ineffectiveness assessment £m | (1,210) | 1,255 |
Hedge ineffectiveness recognised in the income statement £m | 54 | (60) | £ 19
Interest rate | Customer deposits |  |  |
DERIVATIVE FINANCIAL INSTRUMENTS (Details) - Schedule of amounts reclassified from reserves to income statement [Line Items] |  |  |
Gain (loss) recognised in other comprehensive income £m | (14) | 842 |
Hedged cash flows that will no longer occur £m | 0 | 0 |
Hedged item affected income statement £m | (55) | (794) |
Reserve of exchange differences on translation, continuing hedges | 1,527 | 1,592 |
Cash flow hedge/currency translation reserve, discontinued hedges | 38 | 42 |
Change in fair value of hedged item for ineffectiveness assessment £m | 72 | (51) |
Hedge ineffectiveness recognised in the income statement £m | (12) | 8 |
Interest rate | Customer loans |  |  |
DERIVATIVE FINANCIAL INSTRUMENTS (Details) - Schedule of amounts reclassified from reserves to income statement [Line Items] |  |  |
Gain (loss) recognised in other comprehensive income £m | 294 | (2,700) |
Hedged cash flows that will no longer occur £m | 0 | 0 |
Hedged item affected income statement £m | 1,131 | 2,458 |
Reserve of exchange differences on translation, continuing hedges | (2,159) | (3,470) |
Cash flow hedge/currency translation reserve, discontinued hedges | (1,475) | (1,590) |
Change in fair value of hedged item for ineffectiveness assessment £m | (802) | 982 |
Hedge ineffectiveness recognised in the income statement £m | 63 | (61) |
Interest rate | Central bank balances |  |  |
DERIVATIVE FINANCIAL INSTRUMENTS (Details) - Schedule of amounts reclassified from reserves to income statement [Line Items] |  |  |
Gain (loss) recognised in other comprehensive income £m | 205 | (780) |
Hedged cash flows that will no longer occur £m | 0 | 0 |
Hedged item affected income statement £m | 793 | 937 |
Reserve of exchange differences on translation, continuing hedges | (100) | (1,012) |
Cash flow hedge/currency translation reserve, discontinued hedges | (831) | (917) |
Change in fair value of hedged item for ineffectiveness assessment £m | (487) | 384 |
Hedge ineffectiveness recognised in the income statement £m | 3 | (7) |
Foreign currency issuance | Foreign exchange |  |  |
DERIVATIVE FINANCIAL INSTRUMENTS (Details) - Schedule of amounts reclassified from reserves to income statement [Line Items] |  |  |
Gain (loss) recognised in other comprehensive income £m |  | 61 |
Hedged item affected income statement £m |  | (4) |
Hedge ineffectiveness recognised in the income statement £m |  | 0 |
Foreign currency issuance | Foreign exchange | Foreign currency issuance |  |  |
DERIVATIVE FINANCIAL INSTRUMENTS (Details) - Schedule of amounts reclassified from reserves to income statement [Line Items] |  |  |
Gain (loss) recognised in other comprehensive income £m | (3) |  |
Hedged cash flows that will no longer occur £m | 0 | 0 |
Hedged item affected income statement £m | (4) |  |
Reserve of exchange differences on translation, continuing hedges | (11) | 75 |
Cash flow hedge/currency translation reserve, discontinued hedges | 138 | 59 |
Change in fair value of hedged item for ineffectiveness assessment £m | 7 | (60) |
Hedge ineffectiveness recognised in the income statement £m | 0 |  |
Customer deposits | Foreign exchange | Customer deposits |  |  |
DERIVATIVE FINANCIAL INSTRUMENTS (Details) - Schedule of amounts reclassified from reserves to income statement [Line Items] |  |  |
Gain (loss) recognised in other comprehensive income £m | 0 | 0 |
Hedged cash flows that will no longer occur £m | 0 | 0 |
Hedged item affected income statement £m | 4 | 0 |
Reserve of exchange differences on translation, continuing hedges | 0 | 0 |
Cash flow hedge/currency translation reserve, discontinued hedges | 9 | 5 |
Change in fair value of hedged item for ineffectiveness assessment £m | 0 | 0 |
Hedge ineffectiveness recognised in the income statement £m | £ 0 | £ 0 |

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