Fair Value Measurements - Fair Value Measurement (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Assets
Derivative contracts, at fair value (asset)	$ 812	$ 612
Liabilities
Securities sold, not yet purchased, at fair value	6,495	5,340
Derivative contracts, at fair value (liability)	691	787
Recurring measurement
Assets
Investments	6,722	9,060
Derivative contracts, at fair value (asset)	805	612
Assets, Fair Value Disclosure	7,527	9,672
Liabilities
Securities sold, not yet purchased, at fair value	6,495	5,340
Derivative contracts, at fair value (liability)	691	787
Other liabilities	692	494
Financial and Nonfinancial Liabilities, Fair Value Disclosure	7,878	6,621
Recurring measurement \| Level 1
Assets
Investments	5,538	8,905
Assets, Fair Value Disclosure	5,538	8,905
Liabilities
Securities sold, not yet purchased, at fair value	6,326	5,340
Financial and Nonfinancial Liabilities, Fair Value Disclosure	6,326	5,340
Recurring measurement \| Level 2
Assets
Investments	1,142	113
Derivative contracts, at fair value (asset)	805	612
Assets, Fair Value Disclosure	1,947	725
Liabilities
Securities sold, not yet purchased, at fair value	169
Derivative contracts, at fair value (liability)	691	787
Other liabilities	692	494
Financial and Nonfinancial Liabilities, Fair Value Disclosure	1,552	1,281
Recurring measurement \| Level 3
Assets
Investments	42	42
Assets, Fair Value Disclosure	$ 42	$ 42

Investments measured at fair value

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- Definition

Unrealized Gain On Derivative Contracts.

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- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (c)
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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-Section 55
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
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-URI http://asc.fasb.org/extlink&oid=123594938&loc=d3e13433-108611

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- Definition

Fair value of obligations incurred from short sales.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 940
-SubTopic 320
-Section 35
-Paragraph 1
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Fair value of financial and nonfinancial obligations.

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- Definition

Fair value portion of other liabilities.

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