Income Taxes (Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Deferred Tax Assets, Net [Abstract]
Allowance for loan and lease losses	$ 1,170	$ 1,288
Allowance for unfunded lending related commitments	161	141
Compensation and benefits	290	227
Partnership investments	73	121
Loss and credit carryforward	140	162
Accrued expenses	151	107
Lease obligations	563	528
Other	238	163
Total gross deferred tax assets	2,786	2,737
Valuation allowance	(33)	(26)
Total deferred tax assets	2,753	2,711
Deferred Tax Liabilities, Gross [Abstract]
Leasing	1,023	1,179
Right of Use Assets	488	476
Goodwill and intangibles	278	193
Fixed assets	704	592
Net unrealized gains on securities and financial instruments	120	929
Other	343	143
Total deferred tax liabilities	2,956	3,512
Net deferred tax liability	$ 203	$ 801