OTHER BORROWINGS (Details) (USD $)	12 Months Ended
	Sep. 30, 2011		Sep. 30, 2010
Other borrowings:
Total other borrowings	$ 0		2,557,000,000
Other collateralized financings [Abstract]
Other collateralized financings included in securities sold under agreements to repurchase	188,800,000		233,300,000
Argentine joint venture [Member] | Borrowings on unsecured lines of credit [Member]
Lines of credit [Abstract]
Borrowings outstanding	0
Effective interest rate, minimum (in hundredths)	4.25%		4.25%
Effective interest rate, maximum (in hundredths)	25.00%		17.00%
Days per year basis for interest rate disclosures	360		360
FHLB advances [Member]
Other borrowings:
Total other borrowings	0		2,445,000,000	[1]
FHLB advances [Abstract]
FHLB overnight advance			2,400,000,000
Borrowings on secured lines of credit [Member]
Other borrowings:
Total other borrowings	0	[2]	62,000,000	[2]
Borrowings on unsecured lines of credit [Member]
Other borrowings:
Total other borrowings	$ 0	[3]	50,000,000	[3]
U.S. and Canadian secured and unsecured financing facilities [Member]
Lines of credit [Abstract]
Effective interest rate, minimum (in hundredths)	0.19%		0.39%
Effective interest rate, maximum (in hundredths)	3.00%		2.75%
Days per year basis for interest rate disclosures	360		360

[1] FHLB advances outstanding as of September 30, 2010 consisted of several short-term fixed-rate advances and one $2.4 billion overnight advance to meet point-in-time regulatory balance sheet composition requirements related to RJ Bank qualifying as a thrift institution. The overnight advance was repaid on October 1, 2010. See Note 22 for further discussion of these point-in-time requirements.

[2] Any borrowings on secured lines of credit are day-to-day and are generally utilized to finance certain fixed income securities.

[3] Any borrowings on unsecured lines of credit are day-to-day and are generally utilized for cash management purposes.