Commodity and Other Repurchase Agreements and Collateralized Transactions Schedule of Collateralized Financings by Collateral Type (Tables)

3 Months Ended

Dec. 31, 2018

Financial Instruments Owned and Pledged as Collateral [Line Items]

Schedule of Financial Instruments Owned and Pledged as Collateral [Table Text Block]

Securities sold under agreements to repurchase:	December 31, 2018		September 30, 2018
U.S. Treasury obligations	$	103.1	$	39.6
U.S. government agency obligations	449.9		461.7
Asset-backed obligations	65.0		50.0
Agency mortgage-backed obligations	1,621.3		1,385.4
Total securities sold under agreements to repurchase	$	2,239.3	$	1,936.7
Securities loaned:
Equity securities	1,031.0		277.9
Total securities loaned	1,031.0		277.9
Gross amount of secured financing	$	3,270.3	$	2,214.6