Fair Value Hierarchy - Fair Value Option, Additional Information (Details) $ in Millions	12 Months Ended
	Dec. 31, 2022 USD ($) yr	Dec. 31, 2021 USD ($) yr
Other Financial Liabilities
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Net realized and unrealized gains/(losses) on liabilities	$ 4,150	$ 424
Net realized gains/(losses)	(311)	(401)
Net Unrealized Gains / (Losses)	4,459	825
Net realized gains/(losses) included in earnings	(311)	(401)
Other Financial Liabilities | Debt valuation adjustment
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Net realized gains/(losses) included in comprehensive income	503	57
Other Financial Liabilities | Market making
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Net realized gains/(losses) included in earnings	3,600	355
Other Financial Liabilities | Other principal transactions
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Net realized gains/(losses) included in earnings	64	32
Other Financial Liabilities | Interest expense
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Net realized gains/(losses) included in earnings	(21)	(20)
Other secured financings | Other Financial Liabilities
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Net Unrealized Gains / (Losses)	31	63
Net realized gains/(losses) included in earnings	$ (12)	$ (27)
Minimum | Level 3 | Other secured financings | Yield
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Other secured financing measurement input	0.045	0.013
Minimum | Level 3 | Other secured financings | Duration (years)
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Other secured financing measurement input | yr	0.6	0.6
Maximum | Level 3 | Other secured financings | Yield
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Other secured financing measurement input	0.094	0.064
Maximum | Level 3 | Other secured financings | Duration (years)
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Other secured financing measurement input | yr	5.1	7.1
Weighted Average | Level 3 | Other secured financings | Yield
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Other secured financing measurement input	0.059	0.021
Weighted Average | Level 3 | Other secured financings | Duration (years)
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Other secured financing measurement input | yr	2.2	3.7