Trading Assets and Liabilities (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Trading Assets and Liabilities [Line Items]
Trading debt securities	$ 85,766	$ 88,265
Equity securities, carried at fair value	24,698	39,098
Loans held for sale	9,434	23,617
Gross derivative asset	88,751	45,876
Derivative assets	29,253	21,478
Total trading assets	137,656	139,162
Short sale	26,057	20,685
Gross trading derivative liabilities	84,263	41,238
Derivative liabilities	23,400	9,424
Total trading liabilities	48,926	29,156
Other liabilities [Member]
Trading Assets and Liabilities [Line Items]
Total trading liabilities	915	0
Related to trading activities [Member]
Trading Assets and Liabilities [Line Items]
Equity securities, carried at fair value	23,111	27,476
Loans held for sale	1,525	3,242
Gross derivative asset	92,103	48,325
Netting	(64,849)	(28,146)
Derivative assets	27,254	20,179
Short sale	26,057	20,685
Gross trading derivative liabilities	86,228	42,449
Netting	(64,274)	(33,978)
Derivative liabilities	$ 21,954	$ 8,471

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Fair value of obligations incurred from short sales.

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The carrying amount of liabilities as of the balance sheet date that pertain to principal and customer trading transactions, or which may be incurred with the objective of generating a profit from short-term fluctuations in price as part of an entity's market-making, hedging and proprietary trading. Examples include short positions in securities, derivatives and commodities, obligations under repurchase agreements, and securities borrowed arrangements.

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Total debt and equity financial instruments classified as (1) trading securities and (2) derivative assets. (1) The total of financial instruments that are bought and held principally for the purpose of selling them in the near term (thus held for only a short period of time) or for debt and equity securities formerly categorized as available-for-sale or held-to-maturity which the entity held as of the date it opted to account for such securities at fair value. An enterprise may also categorize such a security as trading without the intent to sell it in the near term assuming the decision to categorize the security as trading occurred at acquisition; this is the reason why the trading category of investments in debt and equity securities are bought and sold "principally" for sale in the near term. Transfers into and out of the trading category should be rare. Such financial instruments that are held as of the reporting date are measured at fair value with unrealized holding gains and losses (the difference between fair value and the previously reported carrying amount) included in earnings. (2) Fair values as of the balance sheet date of all assets resulting from contracts that meet the criteria of being accounted for as derivative instruments, net of the effects of master netting arrangements.

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Trading Assets and Liabilities [Line Items]

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