Receivables - Impaired Receivables (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
Jul. 31, 2016	Jul. 31, 2015	Oct. 31, 2015
Recorded Investment
Receivables with specific allowance	$ 23.4	$ 4.6	$ 10.5
Receivables without specific allowance	6.8	11.5	10.1
Total	30.2	16.1	20.6
Unpaid Principal Balance
Receivables with specific allowance	22.7	4.4	10.4
Receivables without specific allowance	6.7	11.3	10.1
Total	29.4	15.7	20.5
Specific Allowance	4.2	0.8	1.2
Average Recorded Investment
Receivables with specific allowance	24.2	7.8	10.4
Receivables without specific allowance	8.3	12.7	12.5
Total	32.5	20.5	22.9
Agriculture and turf
Recorded Investment
Total	24.5	11.7	16.9
Unpaid Principal Balance
Total	23.8	11.3	16.8
Specific Allowance	3.8	0.8	1.0
Average Recorded Investment
Total	26.4	15.9	18.0
Construction and forestry
Recorded Investment
Total	5.7	4.4	3.7
Unpaid Principal Balance
Total	5.6	4.4	3.7
Specific Allowance	0.4		0.2
Average Recorded Investment
Total	6.1	4.6	4.9
Retail notes
Recorded Investment
Receivables with specific allowance	13.0	4.6
Receivables without specific allowance	6.5	10.9	9.5
Unpaid Principal Balance
Receivables with specific allowance	12.3	4.4
Receivables without specific allowance	6.4	10.7	9.5
Specific Allowance	2.9	0.8
Average Recorded Investment
Receivables with specific allowance	13.2	7.8
Receivables without specific allowance	7.8	12.1	11.8
Wholesale receivables
Recorded Investment
Receivables with specific allowance	10.4		9.7
Receivables without specific allowance	0.3	0.6	0.6
Unpaid Principal Balance
Receivables with specific allowance	10.4		9.7
Receivables without specific allowance	0.3	0.6	0.6
Specific Allowance	1.3		1.0
Average Recorded Investment
Receivables with specific allowance	11.0		9.7
Receivables without specific allowance	$ 0.5	$ 0.6	0.7
Financing leases
Recorded Investment
Receivables with specific allowance			0.8
Unpaid Principal Balance
Receivables with specific allowance			0.7
Specific Allowance			0.2
Average Recorded Investment
Receivables with specific allowance			$ 0.7

Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5212-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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-Publisher FASB
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