Parent Company (Balance Sheet) (Details) - USD ($) $ in Millions		Dec. 31, 2024	Dec. 31, 2023
Condensed Financial Statements, Captions [Line Items]
Other assets	[1]	$ 36,981	$ 37,903
Total assets		560,038	561,580
Subordinated debt		4,104	4,875
Total liabilities		505,569	510,439
Shareholders’ equity		54,425	51,105
Total liabilities and equity		560,038	561,580
Parent Company
Condensed Financial Statements, Captions [Line Items]
Cash held at banking subsidiary		5,817	6,599
Restricted deposits with banking subsidiary		175	175
Loans with affiliates		2,322	1,687
Other assets		1,212	1,297
Total assets		85,060	76,882
Subordinated debt		982	1,749
Senior debt		27,345	22,213
Accrued expenses and other liabilities		2,308	1,815
Total liabilities		30,635	25,777
Shareholders’ equity		54,425	51,105
Total liabilities and equity		85,060	76,882
Bank Subsidiaries And Bank Holding Company | Parent Company
Condensed Financial Statements, Captions [Line Items]
Investments in subsidiaries		72,450	64,104
Non Bank Subsidiaries | Parent Company
Condensed Financial Statements, Captions [Line Items]
Investments in subsidiaries		$ 3,084	$ 3,020

[1] Our consolidated assets included the following for which we have elected the fair value option: Loans held for sale of $0.8 billion, Loans of $1.2 billion and Other assets of $0.1 billion at December 31, 2024. Comparable amounts at December 31, 2023 were $0.7 billion, $1.2 billion and $0.1 billion, respectively.