FAIR VALUE MEASUREMENTS - Nonrecurring, Level 3 Measurements (Details) - USD ($) $ in Millions	9 Months Ended
	Jul. 31, 2016	Oct. 31, 2015	Jul. 31, 2015
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis
Equipment on operating leases - net	$ 5,602.7	$ 4,970.4	$ 4,426.0
Fair Value, Nonrecurring Measurements | Level 3
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis
Equipment on operating leases - net		479.0
Losses, Equipment on operating leases - net	30.0
Property and equipment - net		33.0
Other assets		$ 112.0
Losses, Other assets	$ 20.0