COMMISSIONS AND FEES (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Commissions and fees
Total commissions and fees	$ 3,280		$ 3,061		$ 9,905		$ 9,789
Transaction Services
Commissions and fees
Total commissions and fees	469		462		1,396		1,381
Investment banking
Commissions and fees
Total commissions and fees	931		715		2,848		2,483
Credit cards and bank cards
Commissions and fees
Total commissions and fees	570		606		1,698		1,862
Trading-related
Commissions and fees
Total commissions and fees	664		609		2,010		1,981
Other Consumer
Commissions and fees
Total commissions and fees	237	[1]	208	[1]	679	[1]	666	[1]
Checking-related
Commissions and fees
Total commissions and fees	138		132		408		410
Corporate finance
Commissions and fees
Total commissions and fees	113	[2]	124	[2]	389	[2]	415	[2]
Loan servicing
Commissions and fees
Total commissions and fees	93		136		279		388
Other
Commissions and fees
Total commissions and fees	$ 65		$ 69		$ 198		$ 203

[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