LOANS (Details 9) (Corporate, USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Financing receivable impaired
Carrying Value	$ 13	$ 48	$ 120	$ 180
TDRs involving changes in the amount and/or timing of principal payments		47	55	131
TDRs involving changes in the amount and/or timing of interest payments			42	4
TDRs involving changes in the amount and/or timing of both principal and interest payments	13	1	23	45
Net P&L Impact				1
Carrying Value	778	1,100	778	1,100
TDR in payment default		45	17	52
Period within which default occurred post-modification	1 year		1 year
Commercial and industrial
Financing receivable impaired
Carrying Value	11	47	100	86
TDRs involving changes in the amount and/or timing of principal payments		47	55	71
TDRs involving changes in the amount and/or timing of interest payments			28	4
TDRs involving changes in the amount and/or timing of both principal and interest payments	11		17	11
Net P&L Impact				1
Carrying Value	167	395	167	395
TDR in payment default		45	15	52
Financial institutions
Financing receivable impaired
Carrying Value	16	21	16	21
Mortgage and real estate
Financing receivable impaired
Carrying Value	1	1	15	94
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	1	1	1	34
Carrying Value	202	127	202	127
TDR in payment default			2
Other
Financing receivable impaired
Carrying Value	1		5
TDRs involving changes in the amount and/or timing of both principal and interest payments	1		5
Carrying Value	$ 393	$ 557	$ 393	$ 557