Pledged Assets and Collateral - Collateral (Details) - USD ($) $ in Billions |
Jun. 30, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Commitments and Contingencies Disclosure [Abstract] | ||
| Collateral permitted to be sold or repledged, delivered, or otherwise used | $ 1,726.4 | $ 1,544.0 |
| Collateral sold, repledged, delivered or otherwise used | $ 1,350.2 | $ 1,210.7 |