CONSOLIDATED BALANCE SHEET (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2018	Dec. 31, 2017
Federal funds sold and securities borrowed or purchased under agreements to resell, at fair value	$ 280,941	$ 232,478
Trading account assets, pledged to creditors	107,753	99,460
Available-for-sale securities, pledged to creditors	7,854	9,493
Held-to-maturity securities, pledged to creditors	1,073	435
Equity securities, available for sale		189
Loans, net of unearned income	674,909	667,034
Other assets, at fair value	111,268	103,926
Interest-bearing deposits in U.S. offices	351,291	318,613
Interest-bearing deposits in offices outside the U.S.	459,239	426,889
Federal funds purchased and securities loaned or sold under agreements to repurchase, at fair value	175,915	156,277
Short-term borrowings, at fair value	33,770	44,452
Long-term debt, at fair value	235,270	236,709
Other liabilities	$ 56,173	$ 57,021
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)	761,400	770,120
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)	3,099,567,177	3,099,523,273
Treasury stock (in shares)	657,430,364	529,614,728
Consumer
Loans, net of unearned income	$ 325,469	$ 333,656
Corporate
Loans, net of unearned income	349,440	333,378
Fair value
Federal funds sold and securities borrowed or purchased under agreements to resell, at fair value	178,442	132,949
Non-marketable equity securities, pledged to creditors	1,388	1,395
Other assets, at fair value	25,151	18,559
Interest-bearing deposits in U.S. offices	354	303
Interest-bearing deposits in offices outside the U.S.	1,086	1,162
Federal funds purchased and securities loaned or sold under agreements to repurchase, at fair value	48,148	40,638
Short-term borrowings, at fair value	5,041	4,627
Long-term debt, at fair value	36,771	31,392
Other liabilities	19,947	13,961
Fair value | Consumer
Loans, net of unearned income	21	25
Fair value | Corporate
Loans, net of unearned income	$ 4,218	$ 4,349