Segmental analysis - Notable items (Details) - USD ($) $ in Millions |
6 Months Ended | 12 Months Ended | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Jun. 30, 2026 |
Dec. 31, 2025 |
Jun. 30, 2025 |
Dec. 31, 2025 |
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| Revenue | |||||||||||||
| Disposals, wind-downs, acquisitions and related costs | $ (426) | $ (139) | |||||||||||
| Operating expenses | |||||||||||||
| Disposals, wind-downs, acquisitions and related costs | (129) | (227) | |||||||||||
| Expense of restructuring activities | (318) | (616) | |||||||||||
| Impairment losses of interest in BoCom associate | [1],[2] | 0 | (1,000) | ||||||||||
| – foreign exchange losses reclassified to the income statement on disposal or dilution of a foreign operation | 174 | [3] | $ (16) | 224 | |||||||||
| Gain/(loss) recognised on assets held for sale | [4] | (433) | (34) | ||||||||||
| – other reserves reclassified to income statement on disposal or dilution of a foreign operation | $ 58 | (56) | |||||||||||
| UK Life Insurance Business | |||||||||||||
| Operating expenses | |||||||||||||
| – foreign exchange losses reclassified to the income statement on disposal or dilution of a foreign operation | 200 | ||||||||||||
| Gain/(loss) recognised on assets held for sale | (200) | ||||||||||||
| HSBC Bank Malta p.l.c. | |||||||||||||
| Operating expenses | |||||||||||||
| Gain/(loss) recognised on assets held for sale | (300) | ||||||||||||
| HSBC Argentina Holdings S.A. | |||||||||||||
| Operating expenses | |||||||||||||
| – other reserves reclassified to income statement on disposal or dilution of a foreign operation | (100) | ||||||||||||
| Bank of Communications Co., Limited | |||||||||||||
| Revenue | |||||||||||||
| Dilution loss of interest in BoCom associate | 0 | (1,136) | |||||||||||
| Operating expenses | |||||||||||||
| Impairment losses of interest in BoCom associate | 0 | (1,000) | |||||||||||
| Impairment loss recognised in profit or loss | $ 0 | $ 1,000 | $ 1,000 | ||||||||||
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