General and administrative expenses (Detail) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2025 |
Mar. 31, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| General And Administrative Expenses [Line Items] | |||||
| Outsourcing costs | $ 381 | $ 378 | $ 463 | $ 760 | $ 886 |
| Technology costs | 592 | 573 | 567 | 1,166 | 1,154 |
| Consulting, legal and audit fees | 317 | 287 | 394 | 604 | 797 |
| Real estate and logistics costs | 284 | 239 | 302 | 523 | 590 |
| Market data services | 178 | 168 | 188 | 346 | 387 |
| Marketing and communication | 145 | 123 | 137 | 268 | 251 |
| Travel and entertainment | 89 | 74 | 87 | 163 | 159 |
| Litigation, regulatory and similar matters | (412) | 114 | (153) | (298) | (158) |
| Other | 306 | 475 | 334 | 781 | 665 |
| Total general and administrative expenses | $ 1,881 | $ 2,431 | $ 2,318 | 4,312 | $ 4,731 |
| Swisscard | |||||
| General And Administrative Expenses [Line Items] | |||||
| Other | $ 180 | ||||