LOANS (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
LOANS
Number of loan categories	2		2
Loans
Loans, net of unearned income	$ 657,551,000,000		$ 657,551,000,000		$ 655,464,000,000
Consumer
Loans
Total loans	388,345,000,000		388,345,000,000		409,089,000,000
Net unearned income	(523,000,000)		(523,000,000)		(418,000,000)
Loans, net of unearned income	387,822,000,000		387,822,000,000		408,671,000,000
Loans sold and/or reclassified to held-for-sale	1,500,000,000	1,300,000,000	11,300,000,000	2,700,000,000
Loans acquired related to acquisition	7,000,000,000
In U.S. offices | Consumer
Loans
Total loans	241,161,000,000		241,161,000,000		256,763,000,000
In U.S. offices | Consumer | Mortgage and real estate
Loans
Total loans	110,813,000,000		110,813,000,000		125,946,000,000
In U.S. offices | Consumer | Installment, revolving credit and other
Loans
Total loans	13,265,000,000		13,265,000,000		14,070,000,000
In U.S. offices | Consumer | Credit cards
Loans
Total loans	110,734,000,000		110,734,000,000		111,403,000,000
In U.S. offices | Consumer | Commercial and industrial
Loans
Total loans	6,349,000,000		6,349,000,000		5,344,000,000
In offices outside the U.S. | Consumer
Loans
Total loans	147,184,000,000		147,184,000,000		152,326,000,000
In offices outside the U.S. | Consumer | Mortgage and real estate
Loans
Total loans	54,428,000,000		54,428,000,000		54,709,000,000
In offices outside the U.S. | Consumer | Installment, revolving credit and other
Loans
Total loans	32,306,000,000		32,306,000,000		33,958,000,000
In offices outside the U.S. | Consumer | Credit cards
Loans
Total loans	35,966,000,000		35,966,000,000		40,653,000,000
In offices outside the U.S. | Consumer | Commercial and industrial
Loans
Total loans	23,741,000,000		23,741,000,000		22,225,000,000
In offices outside the U.S. | Consumer | Lease financing
Loans
Total loans	$ 743,000,000		$ 743,000,000		$ 781,000,000