Trading Assets and Liabilities - Summary of Trading Assets and Liabilities (Detail) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Trading assets	$ 448,060	$ 301,245
Trading liabilities	195,123	191,324
Trading cash instruments
Trading Cash Instruments	398,998	241,832
Trading liabilities	140,306	136,589
Derivatives
Trading Assets at Fair Value	49,062	59,413
Trading liabilities	$ 54,817	$ 54,735

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.

No definition available.

Name:	us-gaap_TradingLiabilities
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant