LOANS (Details 9) (Corporate, USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Financing receivable impaired
Carrying Value	$ 42	$ 54	$ 107	$ 132
TDRs involving changes in the amount and/or timing of principal payments	14	7	55	84
TDRs involving changes in the amount and/or timing of interest payments	28	4	42	4
TDRs involving changes in the amount and/or timing of both principal and interest payments		43	10	44
Net P&L Impact				1
Carrying Value	825	1,143	825	1,143
TDR in payment default	2	7	17	7
Commercial and industrial
Financing receivable impaired
Carrying Value	42	22	89	39
TDRs involving changes in the amount and/or timing of principal payments	14	7	55	24
TDRs involving changes in the amount and/or timing of interest payments	28	4	28	4
TDRs involving changes in the amount and/or timing of both principal and interest payments		11	6	11
Net P&L Impact				1
Carrying Value	173	388	173	388
TDR in payment default		7	15	7
Financial institutions
Financing receivable impaired
Carrying Value	16	30	16	30
Mortgage and real estate
Financing receivable impaired
Carrying Value		32	14	93
TDRs involving changes in the amount and/or timing of principal payments				60
TDRs involving changes in the amount and/or timing of interest payments			14
TDRs involving changes in the amount and/or timing of both principal and interest payments		32		33
Carrying Value	218	153	218	153
TDR in payment default	2		2
Other
Financing receivable impaired
Carrying Value			4
TDRs involving changes in the amount and/or timing of both principal and interest payments			4
Carrying Value	$ 418	$ 572	$ 418	$ 572