CONSOLIDATED BALANCE SHEET (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Securities borrowed or purchased under agreements to resell, at fair value	$ 285,928	$ 345,700
Trading account assets, pledged to creditors	215,744	197,156
Available-for-sale securities, pledged to creditors	2,579	11,868
Held-to-maturity debt securities, fair value	234,310	235,001
Held-to-maturity debt securities, pledged to creditors	76	71
Equity securities, at fair value	855	766
Loans, net of unearned income, at fair value	688,922	689,362
Mortgage servicing rights, at fair value	683	691
Other assets, at fair value	104,771	95,963
Securities loaned or sold under agreements to repurchase, at fair value	278,377	278,107
Brokerage payables, at fair value	81,186	63,539
Short-term borrowings, at fair value	41,340	37,457
Long-term debt, at fair value	$ 299,081	$ 286,619
Preferred stock, par value (in dollars per share)	$ 1.00	$ 1.00
Preferred stock, authorized shares (in shares)	30,000,000	30,000,000
Preferred stock, issued shares, at aggregate liquidation value (in shares)	654,000	704,000
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, authorized shares (in shares)	6,000,000,000	6,000,000,000
Common stock, issued shares (in shares)	3,099,718,745	3,099,691,704
Treasury stock (in shares)	1,208,453,942	1,196,577,865
Recurring
Deposits, at fair value	$ 4,112	$ 2,440
Consumer loans
Loans, net of unearned income, at fair value	389,151	389,197
Corporate loans
Loans, net of unearned income, at fair value	299,771	300,165
Fair value
Securities borrowed or purchased under agreements to resell, at fair value	147,955	206,059
Other assets, at fair value	15,230	12,290
Securities loaned or sold under agreements to repurchase, at fair value	62,858	62,485
Brokerage payables, at fair value	6,329	4,321
Short-term borrowings, at fair value	11,896	6,545
Long-term debt, at fair value	117,286	116,338
Fair value | Consumer loans
Loans, net of unearned income, at fair value	302	313
Fair value | Corporate loans
Loans, net of unearned income, at fair value	$ 7,804	$ 7,281