Other Assets (Schedule of Other Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Other Assets [Abstract]
Property and equipment at cost	$ 2,352	$ 2,139
Accumulated depreciation	(1,076)	(955)
Net property and equipment	1,276	1,184
Investment in qualified affordable housing projects	1,596	1,378
Net deferred tax assets	1,087	254
Nonmarketable equity investments	842	998
Goodwill	822	822	$ 343
Accrued interest, fees, and rent receivables	786	600
Equity-method investments	608	472
Restricted cash held for securitization trusts	585	516
Other accounts receivable	164	127
Operating lease right-of-use assets	111	148
Net intangible assets	98	129
Restricted cash and cash equivalents	66	92
Other assets	1,097	1,337
Total other assets	$ 9,138	$ 8,057
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Total other assets	Total other assets