CONSOLIDATED BALANCE SHEET (UNAUDITED) (Parenthetical) - USD ($) $ in Millions	Jun. 30, 2017	Dec. 31, 2016
Federal funds sold and securities borrowed or purchased under agreements to resell, at fair value	$ 234,065	$ 236,813
Trading account assets, pledged to creditors	98,974	80,986
Available-for-sale securities, pledged to creditors	8,512	8,239
Held-to-maturity securities, pledged to creditors	311	843
Loans, net of unearned income	644,695	624,369
Other assets, at fair value	131,647	128,008
Interest-bearing deposits in U.S. offices	311,361	300,972
Interest-bearing deposits in offices outside the U.S.	438,083	414,120
Federal funds purchased and securities loaned or sold under agreements to repurchase, at fair value	154,780	141,821
Short-term borrowings, at fair value	36,519	30,701
Long-term debt, at fair value	225,179	206,178
Other liabilities	$ 58,043	$ 61,631
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)	770,120	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)	3,099,523,273	3,099,482,042
Treasury stock (in shares)	374,967,178	327,090,192
Consumer
Loans, net of unearned income	$ 325,261	$ 325,063
Corporate
Loans, net of unearned income	319,434	299,306
Fair value
Federal funds sold and securities borrowed or purchased under agreements to resell, at fair value	142,831	133,204
Non-marketable equity securities, pledged to creditors	1,384	1,774
Other assets, at fair value	18,993	15,729
Interest-bearing deposits in U.S. offices	334	434
Interest-bearing deposits in offices outside the U.S.	1,006	778
Federal funds purchased and securities loaned or sold under agreements to repurchase, at fair value	44,881	33,663
Short-term borrowings, at fair value	4,833	2,700
Long-term debt, at fair value	29,001	26,524
Other liabilities	14,335	10,796
Fair value | Consumer
Loans, net of unearned income	27	29
Fair value | Corporate
Loans, net of unearned income	$ 4,189	$ 3,457