Income Taxes - Deferred Income Taxes Included in Other Assets in the Consolidated Balance Sheets (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Deferred tax assets:
Other comprehensive income	$ 1,595	$ 0
Allowance for loan and lease losses	461	397
Deferred compensation	105	106
Reserves for unfunded commitments	45	38
Reserves	34	30
Federal net operating loss carryforwards	31	15
State deferred taxes	20	0
State net operating loss carryforwards	14	3
Other	231	187
Total deferred tax assets	2,536	776
Deferred tax liabilities:
Lease financing	561	553
MSRs and related economic hedges	120	116
Goodwill and intangible assets	78	68
Bank premises and equipment	66	65
Investments in joint ventures and partnership interests	61	61
Other comprehensive income	0	367
State deferred taxes	0	6
Other	101	51
Total deferred tax liabilities	987	1,287
Total net deferred tax asset (liability)	$ 1,549
Total net deferred tax asset (liability)		$ (511)