Other Income and Administrative and Operating Expenses (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2016	Oct. 31, 2015	Oct. 31, 2014
Other income - net
Fees from John Deere	$ 6.5	$ 15.9	$ 43.2
Fees from customers	27.5	21.4	16.7
Other	9.8	(4.9)	10.4
Total	43.8	32.4	70.3
Administrative and operating expenses
Compensation and benefits	222.9	231.4	261.2
Other	244.0	143.3	149.4
Total	$ 466.9	$ 374.7	$ 410.6