Income Taxes (Details 2) (USD $) In Millions, unless otherwise specified	Oct. 31, 2013	Oct. 31, 2012
Deferred Tax Assets
Allowance for credit losses	$ 43.1	$ 45.9
Unrealized gain/loss on derivatives	2.0	6.1
Accrual for retirement and other benefits	22.2	8.0
Federal taxes on deferred state tax deductions	12.6	12.2
Tax loss and tax credit carryforwards	5.4	3.9
Miscellaneous accruals and other	5.3	0.2
Less valuation allowances	(0.8)	(0.4)
Deferred income tax assets	89.8	75.9
Deferred Tax Liabilities
Lease transactions	406.2	345.6
Tax over book depreciation	2.9	2.0
Deferred retail note finance income	3.9	3.0
Deferred income tax liabilities	413.0	350.6
Additional Deferred income Tax Information
Tax loss and tax credit carryforwards, expiring from 2014 through 2033	4.5
Tax loss and tax credit carryforwards with an indefinite carryforward period	$ 0.9