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Fair Value Measurements - Fair Value Measurement (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Assets |  |
Derivative contracts, at fair value (asset) | $ 64 | $ 805
Liabilities |  |
Securities sold, not yet purchased, at fair value | 3,473 | 6,495
Derivative contracts, at fair value (liability) | 979 | 691
Recurring measurement |  |
Assets |  |
Investments | 2,901 | 6,722
Derivative contracts, at fair value (asset) | 64 | 805
Assets, Fair Value Disclosure | 2,965 | 7,527
Liabilities |  |
Securities sold, not yet purchased, at fair value | 3,473 | 6,495
Derivative contracts, at fair value (liability) | 979 | 691
Other liabilities | 329 | 692
Financial and Nonfinancial Liabilities, Fair Value Disclosure | 4,781 | 7,878
Recurring measurement | Level 1 |  |
Assets |  |
Investments | 2,730 | 5,538
Assets, Fair Value Disclosure | 2,730 | 5,538
Liabilities |  |
Securities sold, not yet purchased, at fair value | 3,288 | 6,326
Financial and Nonfinancial Liabilities, Fair Value Disclosure | 3,288 | 6,326
Recurring measurement | Level 2 |  |
Assets |  |
Investments | 129 | 1,142
Derivative contracts, at fair value (asset) | 64 | 805
Assets, Fair Value Disclosure | 193 | 1,947
Liabilities |  |
Securities sold, not yet purchased, at fair value | 185 | 169
Derivative contracts, at fair value (liability) | 979 | 691
Other liabilities | 329 | 692
Financial and Nonfinancial Liabilities, Fair Value Disclosure | 1,493 | 1,552
Recurring measurement | Level 3 |  |
Assets |  |
Investments | 42 | 42
Assets, Fair Value Disclosure | 42 | $ 42
Fair value, nonrecurring | Level 3 |  |
Liabilities |  |
Estimated fair value | 46 |
Fair value of related party note receivable | $ 11 |

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