Commodity and Other Repurchase Agreements Gross Obligations Collateral Types (Tables)

12 Months Ended

Sep. 30, 2017

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:
U.S. Treasury obligations	$	7.0
U.S. government agency obligations	332.6
Asset-backed obligations	36.4
Agency mortgage-backed obligations	1,017.1
Total securities sold under agreements to repurchase	$	1,393.1
Securities loaned:
Common stock	111.1
Total securities loaned	111.1
Gross amount of secured financing	$	1,504.2