COMMISSIONS AND FEES (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Commissions and fees
Total commissions and fees	$ 13,113	$ 12,732	$ 12,665
Transaction Services
Commissions and fees
Total commissions and fees	1,847	1,733	1,821
Credit cards and bank cards
Commissions and fees
Total commissions and fees	2,472	2,775	3,360
Investment banking
Commissions and fees
Total commissions and fees	3,315	2,991	2,451
Trading-related
Commissions and fees
Total commissions and fees	2,532	2,296	2,587
Other Consumer
Commissions and fees
Total commissions and fees	911	908	990
Checking-related
Commissions and fees
Total commissions and fees	551	615	624
Loan servicing
Commissions and fees
Total commissions and fees	500	313	251
Corporate finance
Commissions and fees
Total commissions and fees	516	516	519
Other
Commissions and fees
Total commissions and fees	$ 469	$ 585	$ 62