COMMISSIONS AND FEES (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014		Jun. 30, 2013
Commissions and fees
Total commissions and fees	$ 3,491		$ 3,293		$ 6,625		$ 6,728
Transaction Services
Commissions and fees
Total commissions and fees	473		536		926		920
Investment banking
Commissions and fees
Total commissions and fees	1,084		841		1,917		1,767
Credit cards and bank cards
Commissions and fees
Total commissions and fees	564		632		1,128		1,256
Trading-related
Commissions and fees
Total commissions and fees	695		671		1,346		1,372
Other Consumer
Commissions and fees
Total commissions and fees	229	[1]	230	[1]	442	[1]	458	[1]
Checking-related
Commissions and fees
Total commissions and fees	135		72		270		278
Corporate finance
Commissions and fees
Total commissions and fees	152	[2]	132	[2]	276	[2]	291	[2]
Loan servicing
Commissions and fees
Total commissions and fees	98		115		186		252
Other
Commissions and fees
Total commissions and fees	$ 61		$ 64		$ 134		$ 134

[1] Primarily consists of fees for investment fund administration and management, third-party collections, commercial demand deposit accounts and certain credit card services.

[2] Consists primarily of fees earned from structuring and underwriting loan syndications