FAIR VALUE MEASUREMENT (Details 6) (USD $)	Sep. 30, 2014		Jun. 30, 2014	Dec. 31, 2013		Sep. 30, 2013	Jun. 30, 2013	Dec. 31, 2012
Assets
Loans	$ 4,411,000,000			$ 5,029,000,000
Liabilities
Deposits	942,655,000,000			968,273,000,000
Allowance for loan losses	16,915,000,000		17,890,000,000	19,648,000,000		20,605,000,000	21,580,000,000	25,455,000,000
Lease finance receivables	2,800,000,000			2,900,000,000
Corporate
Assets
Loans	4,366,000,000	[1]		4,072,000,000	[1]
Fair value
Assets
Investments	32,200,000,000			19,300,000,000
Federal funds sold and securities borrowed or purchased under agreements to resell	104,500,000,000			115,600,000,000
Loans	627,200,000,000	[2],[3]		635,100,000,000	[2],[3]
Other financial assets	247,100,000,000	[2]		250,700,000,000	[2],[4]
Liabilities
Deposits	938,500,000,000			965,600,000,000
Federal funds purchased and securities loaned or sold under agreements to repurchase, selected portfolios of securities sold under agreements to repurchase and securities loaned	131,100,000,000			152,000,000,000
Long-term debt	204,400,000,000	[5]		201,300,000,000	[5]
Other financial liabilities	153,900,000,000	[6]		136,200,000,000	[6]
Fair value | Level 1
Assets
Investments	5,000,000,000			5,300,000,000
Other financial assets	9,000,000,000	[7]		9,400,000,000	[2],[4]
Fair value | Level 2
Assets
Investments	24,800,000,000			11,900,000,000
Federal funds sold and securities borrowed or purchased under agreements to resell	94,800,000,000			107,200,000,000
Loans	6,500,000,000	[2],[3]		5,600,000,000	[2],[3]
Other financial assets	170,000,000,000	[2]		189,500,000,000	[2],[4]
Liabilities
Deposits	644,800,000,000			776,400,000,000
Federal funds purchased and securities loaned or sold under agreements to repurchase, selected portfolios of securities sold under agreements to repurchase and securities loaned	131,000,000,000			151,800,000,000
Long-term debt	170,400,000,000	[5]		175,600,000,000	[5]
Other financial liabilities	43,200,000,000	[6]		41,200,000,000	[6]
Fair value | Level 3
Assets
Investments	2,400,000,000			2,100,000,000
Federal funds sold and securities borrowed or purchased under agreements to resell	9,700,000,000			8,400,000,000
Loans	620,700,000,000	[2],[3]		629,500,000,000	[2],[3]
Other financial assets	68,100,000,000	[2]		51,800,000,000	[2],[4]
Liabilities
Deposits	293,700,000,000			189,200,000,000
Federal funds purchased and securities loaned or sold under agreements to repurchase, selected portfolios of securities sold under agreements to repurchase and securities loaned	100,000,000			200,000,000
Long-term debt	34,000,000,000	[5]		25,700,000,000	[5]
Other financial liabilities	110,700,000,000	[6]		95,000,000,000	[6]
Fair value | Level 3 | Corporate
Fair value measurements additional disclosures
Unfunded lending commitments	4,800,000,000			5,200,000,000
Carrying value
Assets
Investments	30,900,000,000			17,800,000,000
Federal funds sold and securities borrowed or purchased under agreements to resell	104,500,000,000			115,600,000,000
Loans	629,700,000,000	[2],[3]		637,900,000,000	[2],[3]
Other financial assets	247,100,000,000	[2]		250,700,000,000	[2],[4]
Liabilities
Deposits	940,900,000,000			966,600,000,000
Federal funds purchased and securities loaned or sold under agreements to repurchase, selected portfolios of securities sold under agreements to repurchase and securities loaned	131,100,000,000			152,000,000,000
Long-term debt	197,400,000,000	[5]		194,200,000,000	[5]
Other financial liabilities	$ 153,900,000,000	[6]		$ 136,200,000,000	[6]

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

[2] Includes items measured at fair value on a nonrecurring basis.

[3] The carrying value of loans is net of the Allowance for loan losses of $16.9 billion for September 30, 2014 and $19.6 billion for December 31, 2013. In addition, the carrying values exclude $2.8 billion and $2.9 billion of lease finance receivables at September 30, 2014 and December 31, 2013, respectively.

[4] Includes cash and due from banks, deposits with banks, brokerage receivables, reinsurance recoverable and other financial instruments included in Other assets on the Consolidated Balance Sheet, for all of which the carrying value is a reasonable estimate of fair value.

[5] The carrying value includes long-term debt balances under qualifying fair value hedges.

[6] Includes brokerage payables, separate and variable accounts, short-term borrowings (carried at cost) and other financial instruments included in Other liabilities on the Consolidated Balance Sheet, for all of which the carrying value is a reasonable estimate of fair value.

[7] Includes estimated costs to sell.