CONSOLIDATED BALANCE SHEET (Parenthetical) (USD $) In Millions, except Share data	Jun. 30, 2011	Dec. 31, 2010
Federal funds sold and securities borrowed or purchased under agreements to resell, at fair value	$ 147,401	$ 87,512
Trading account assets, pledged to creditors	139,080	117,554
Investments, pledged to creditors	16,229	12,546
Investments	286,642	281,174
Consumer loans, at fair value	1,422	1,745
Corporate loans, at fair value	3,418	2,627
Other assets, at fair value	14,317	19,319
Interest-bearing deposits in U.S. offices, at fair value	960	665
Interest-bearing deposits in offices outside the U.S., at fair value	791	600
Federal funds purchased and securities loaned or sold under agreements to repurchase, at fair value	125,072	121,193
Short-term borrowings, at fair value	1,938	2,429
Long-term debt, at fair value	26,999	25,997
Other liabilities, at fair value	8,008	9,710
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)	12,038	12,038
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, authorized shares (in shares)	60,000,000,000	60,000,000,000
Common stock, issued shares (in shares)	2,931,850,680	2,922,401,623
Treasury stock, shares (in shares)	13,901,565	16,565,572
Consolidated VIEs
Consumer loans, at fair value	1,395	1,718
Corporate loans, at fair value	303	425
Long-term debt, at fair value	$ 1,756	$ 3,942