Fair value option - Assets and Liabilities (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Assets of consolidated investment management funds:
Trading assets	$ 10,759	$ 16,577
Other assets	1,268	1,187
Liabilities of consolidated investment management funds:
Other liabilities	31	496
Investment Management funds
Assets of consolidated investment management funds:
Trading assets	191	443
Other assets	5	19
Total assets	196	462
Liabilities of consolidated investment management funds:
Other liabilities	1	3
Total liabilities	$ 1	$ 3

Assets of Consolidated Investment Management Funds [Abstract]

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Liabilities of Consolidated Investment Management Funds [Abstract]

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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.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
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Fair value of financial and nonfinancial obligations.

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Fair value portion of other assets.

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Fair value portion of other liabilities.

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- Definition

Amount of investment in debt security measured at fair value with change in fair value recognized in net income (trading) and investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
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