Derivatives - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Derivative Instruments, Gain (Loss) [Line Items]
Collateral cash	$ 380	$ 184
Total trading revenues	157	360	$ 371
Hedged amount of foreign currency denominated loans	9	7
Derivative liabilities, other	929	103
Derivative asset	458	323
Derivative Instruments With Adjustable Collateral Posting Thresholds | Additional Derivative Agreements
Derivative Instruments, Gain (Loss) [Line Items]
Net fair value of derivative assets with adjustable posting thresholds	5	67
Net fair value of derivative liabilities with adjustable posting thresholds	268	26
Collateral received	106	205
Securities posted collateral	61	14
Derivative Instruments With Accelerated Termination Provisions | Additional Derivative Agreements
Derivative Instruments, Gain (Loss) [Line Items]
Net fair value of derivative assets with adjustable posting thresholds	378	74
Net fair value of derivative liabilities with adjustable posting thresholds	268	30
Collateral received	479	213
Securities posted collateral	61	18
Credit Risk Contract
Derivative Instruments, Gain (Loss) [Line Items]
Derivative asset, notional amount	242	257
Derivative liability, notional amount	742	500
Embedded Derivative Financial Instruments
Derivative Instruments, Gain (Loss) [Line Items]
Derivative liabilities, other	0	0
Derivative asset	0	0
Visa Class B Shares
Derivative Instruments, Gain (Loss) [Line Items]
Derivative liabilities related to sale	27	23
Derivative valuation adjustment	22	19
Counterparties
Derivative Instruments, Gain (Loss) [Line Items]
Collateral cash receivables	159	181
Collateral cash	$ 42	$ 102