Income Taxes (Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Deferred Tax Assets, Net [Abstract]
Net unrealized losses on securities and financial instruments	$ 3,107
Allowance for loan and lease losses	1,152	1,170
Lease obligations	548	563
Compensation and benefits	369	290
Allowance for unfunded lending related commitments	170	161
Loss and credit carryforward	98	140
Accrued expenses	78	151
Other	252	311
Total gross deferred tax assets	5,774	2,786
Valuation allowance	(27)	(33)
Total deferred tax assets	5,747	2,753
Deferred tax liabilities
Leasing	1,034	1,023
Fixed assets	589	704
Right of Use Assets	472	488
Mortgage servicing rights	325	89
Goodwill and intangibles	270	278
Net unrealized gains on securities and financial instruments		120
Other	405	254
Total deferred tax liabilities	3,095	2,956
Net deferred tax asset (liability)	$ 2,652
Net deferred tax asset (liability)		$ (203)