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Contingent liabilities and commitments (Details) - GBP (£) £ in Millions | Jun. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Contingent liabilities and commitments |  |
Standby facilities, credit lines and other commitments | £ 142,157 | £ 135,405
Total | 146,320 | 139,961
Guarantees |  |
Contingent liabilities and commitments |  |
Estimated net exposure | 2,801 | 3,060
Other contingent liabilities |  |
Contingent liabilities and commitments |  |
Estimated net exposure | £ 1,362 | £ 1,496

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