Fair Value Hierarchy - Derivatives, Additional Information (Details) - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
|
| Derivative [Line Items] | ||
| Net realized and unrealized gains (losses) on level 3 derivatives | $ (943) | $ 627 |
| Net realized gains (losses) on derivative assets and liabilities | (92) | 15 |
| Net unrealized gains/(losses) | (851) | 612 |
| Market making | ||
| Derivative [Line Items] | ||
| Net realized and unrealized gains (losses) on level 3 derivatives | (930) | 623 |
| Other principal transactions | ||
| Derivative [Line Items] | ||
| Net realized and unrealized gains (losses) on level 3 derivatives | $ (13) | $ 4 |