Commodity and Other Repurchase Agreements Gross Obligations Contractual Maturities (Tables)

12 Months Ended

Sep. 30, 2017

Assets Sold under Agreements to Repurchase [Line Items]

Schedule of Underlying Assets of Repurchase Agreements when Amount of Repurchase Agreements Exceeds 10 Percent of Assets [Table Text Block]

	Overnight and Open	Less than 30 Days	30-90 Days	Over 90 Days	Total
Securities sold under agreements to repurchase	$640.2	$432.9	$320.0	—	$1,393.1
Securities loaned	111.1	—	—	—	111.1
Gross amount of secured financing	$751.3	$432.9	$320.0	—	$1,504.2