Other Assets (Schedule of Other Assets) (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021	Dec. 31, 2020
Other Assets [Abstract]
Property and equipment at cost	$ 2,278	$ 2,139
Accumulated depreciation	(1,021)	(955)
Net property and equipment	1,257	1,184
Investment in qualified affordable housing projects	1,519	1,378
Nonmarketable equity investments	1,251	998
Net deferred tax assets	908	254
Goodwill	822	822	$ 343
Accrued interest, fees, and rent receivables	646	600
Equity-method investments	583	472
Restricted cash held for securitization trusts	497	516
Other accounts receivable	144	127
Net intangible assets	112	129
Operating lease right-of-use assets	112	148
Restricted cash and cash equivalents	95	92
Other assets	936	1,337
Total other assets	$ 8,882	$ 8,057
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Total other assets	Total other assets