Allowance for Credit Losses and Credit Quality of Receivables (Details 5) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Oct. 31, 2014	Oct. 31, 2013	Oct. 31, 2012
Dollars
Total write-offs	$ (45.7)	$ (31.4)	$ (40.7)
Total recoveries	20.2	22.5	29.1
Total net write-offs	(25.5)	(8.9)	(11.6)
Percent
Total write-offs (as a percent)	(0.16%)	(0.12%)	(0.18%)
Total recoveries (as a percent)	0.07%	0.09%	0.13%
Total net write-offs (as a percent)	(0.09%)	(0.03%)	(0.05%)
Retail notes
Dollars
Total write-offs	(12.7)	(9.4)	(7.4)
Total recoveries	5.5	5.9	6.8
Percent
Total write-offs (as a percent)	(0.07%)	(0.06%)	(0.05%)
Total recoveries (as a percent)	0.03%	0.04%	0.05%
Retail notes | Agriculture and turf equipment
Dollars
Total write-offs	(6.1)	(4.3)	(3.4)
Total recoveries	3.3	3.6	3.9
Percent
Total write-offs (as a percent)	(0.04%)	(0.03%)	(0.03%)
Total recoveries (as a percent)	0.02%	0.03%	0.03%
Retail notes | Construction and forestry equipment
Dollars
Total write-offs	(6.6)	(5.1)	(4.0)
Total recoveries	2.2	2.3	2.9
Percent
Total write-offs (as a percent)	(0.33%)	(0.33%)	(0.32%)
Total recoveries (as a percent)	0.11%	0.15%	0.23%
Revolving charge accounts
Dollars
Total write-offs	(24.6)	(19.8)	(28.8)
Total recoveries	14.3	15.3	21.4
Percent
Total write-offs (as a percent)	(1.11%)	(0.89%)	(1.29%)
Total recoveries (as a percent)	0.65%	0.69%	0.96%
Wholesale receivables
Dollars
Total write-offs	(7.7)	(0.3)	(1.0)
Total recoveries	0.1	0.2	0.1
Percent
Total write-offs (as a percent)	(0.09%)	0.00%	(0.02%)
Total recoveries (as a percent)	0.00%	0.00%	0.00%
Financing leases
Dollars
Total write-offs	(0.5)	(1.8)	(1.6)
Total recoveries	0.2	0.5	0.3
Percent
Total write-offs (as a percent)	(0.09%)	(0.34%)	(0.34%)
Total recoveries (as a percent)	0.04%	0.09%	0.06%
Operating loans
Dollars
Total write-offs	(0.2)	(0.1)	(1.9)
Total recoveries	$ 0.1	$ 0.6	$ 0.5
Percent
Total write-offs (as a percent)	(1.45%)	(0.25%)	(3.12%)
Total recoveries (as a percent)	0.73%	1.50%	0.82%