LOANS (Details 5) (USD $) In Millions, unless otherwise specified	Jun. 30, 2014		Dec. 31, 2013
Loans
Loans, net of unearned income	$ 667,504		$ 665,472
Corporate
Loans
Total loans	283,715		272,203
Net unearned income (loss)	(556)		(562)
Loans, net of unearned income	283,159	[1]	271,641	[1]
Corporate | Commercial and industrial
Loans
Loans, net of unearned income	116,918	[1]	113,831	[1]
Corporate | Financial institutions
Loans
Loans, net of unearned income	67,732	[1]	62,069	[1]
Corporate | Mortgage and real estate
Loans
Loans, net of unearned income	37,622	[1]	34,900	[1]
Corporate | Lease financing
Loans
Loans, net of unearned income	2,096	[1]	2,174	[1]
In U.S. offices | Corporate
Loans
Total loans	131,219		123,312
In U.S. offices | Corporate | Commercial and industrial
Loans
Total loans	36,293		32,704
In U.S. offices | Corporate | Financial institutions
Loans
Total loans	29,195		25,102
In U.S. offices | Corporate | Mortgage and real estate
Loans
Total loans	31,417	[2]	29,425	[2]
In U.S. offices | Corporate | Installment, revolving credit and other
Loans
Total loans	32,646		34,434
In U.S. offices | Corporate | Lease financing
Loans
Total loans	1,668		1,647
In offices outside the U.S. | Corporate
Loans
Total loans	152,496		148,891
In offices outside the U.S. | Corporate | Commercial and industrial
Loans
Total loans	82,945		82,663
In offices outside the U.S. | Corporate | Financial institutions
Loans
Total loans	40,541		38,372
In offices outside the U.S. | Corporate | Mortgage and real estate
Loans
Total loans	6,309	[2]	6,274	[2]
In offices outside the U.S. | Corporate | Installment, revolving credit and other
Loans
Total loans	20,095		18,714
In offices outside the U.S. | Corporate | Lease financing
Loans
Total loans	430		527
In offices outside the U.S. | Corporate | Government and official institutions
Loans
Total loans	$ 2,176		$ 2,341

[1] Total loans include loans at fair value, which are not included in the various delinquency columns.

[2] Loans secured primarily by real estate.