Auditor's remuneration - Fees payable by HSBC to PwC (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Additional information [abstract] | |||
| Fees for HSBC Holdings’ statutory audit | $ 25.1 | $ 22.0 | $ 24.1 |
| Fees for other services provided to HSBC | 134.0 | 124.6 | 131.8 |
| – audit of HSBC’s subsidiaries | 83.8 | 80.8 | 85.7 |
| – audit-related assurance services | 28.2 | 25.0 | 26.0 |
| – other assurance services | 22.0 | 18.8 | 20.1 |
| Year ended 31 Dec | 159.1 | $ 146.6 | $ 155.9 |
| Auditor's renumeration, expenses reimbursed | $ 2.1 | ||