FAIR VALUE ELECTIONS (Details 3) (USD $)	Sep. 30, 2014	Dec. 31, 2013
Carrying value of structured notes, disaggregated by type of embedded derivative instrument
Carrying value of structured notes	$ 23,100,000,000	$ 22,600,000,000
Consolidated VIEs
Carrying value of structured notes, disaggregated by type of embedded derivative instrument
Aggregate unpaid principal balance in excess of (less than) fair value	(357,000,000)	(866,000,000)
Long-term debt | Carrying amount | Consolidated VIEs
Carrying value of structured notes, disaggregated by type of embedded derivative instrument
Carrying amount reported on the Consolidated Balance Sheet	26,453,000,000	25,968,000,000
Short-term borrowings
Carrying value of structured notes, disaggregated by type of embedded derivative instrument
Aggregate unpaid principal balance in excess of (less than) fair value	32,000,000	(38,000,000)
Short-term borrowings | Carrying amount
Carrying value of structured notes, disaggregated by type of embedded derivative instrument
Carrying amount reported on the Consolidated Balance Sheet	1,454,000,000	3,692,000,000
Interest Rate Linked
Carrying value of structured notes, disaggregated by type of embedded derivative instrument
Carrying value of structured notes	10,700,000,000	9,800,000,000
Foreign Exchange Linked
Carrying value of structured notes, disaggregated by type of embedded derivative instrument
Carrying value of structured notes	300,000,000	500,000,000
Equity Linked
Carrying value of structured notes, disaggregated by type of embedded derivative instrument
Carrying value of structured notes	7,400,000,000	7,000,000,000
Commodity Linked
Carrying value of structured notes, disaggregated by type of embedded derivative instrument
Carrying value of structured notes	2,000,000,000	1,800,000,000
Credit Linked
Carrying value of structured notes, disaggregated by type of embedded derivative instrument
Carrying value of structured notes	$ 2,700,000,000	$ 3,500,000,000