Receivables (Details 3) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
Apr. 30, 2016	Apr. 30, 2015	Oct. 31, 2015
Recorded Investment
Receivables with specific allowance	$ 22.0	$ 3.1	$ 10.5
Receivables without specific allowance	11.2	11.4	10.1
Total	33.2	14.5	20.6
Unpaid Principal Balance
Receivables with specific allowance	21.4	3.0	10.4
Receivables without specific allowance	11.1	11.2	10.1
Total	32.5	14.2	20.5
Specific Allowance	3.0	2.0	1.2
Average Recorded Investment
Receivables with specific allowance	21.8	5.5	10.4
Receivables without specific allowance	9.9	11.9	12.5
Total	31.7	17.4	22.9
Agriculture and turf
Recorded Investment
Total	26.8	8.6	16.9
Unpaid Principal Balance
Total	26.2	8.3	16.8
Specific Allowance	2.9	2.0	1.0
Average Recorded Investment
Total	27.3	11.4	18.0
Construction and forestry
Recorded Investment
Total	6.4	5.9	3.7
Unpaid Principal Balance
Total	6.3	5.9	3.7
Specific Allowance	0.1		0.2
Average Recorded Investment
Total	4.4	6.0	4.9
Retail notes
Recorded Investment
Receivables with specific allowance	9.7	2.8
Receivables without specific allowance	10.9	11.4	9.5
Unpaid Principal Balance
Receivables with specific allowance	9.2	2.7
Receivables without specific allowance	10.8	11.2	9.5
Specific Allowance	1.6	1.7
Average Recorded Investment
Receivables with specific allowance	9.7	5.2
Receivables without specific allowance	9.4	11.9	11.8
Revolving charge accounts
Recorded Investment
Receivables with specific allowance		0.2
Unpaid Principal Balance
Receivables with specific allowance		0.2
Specific Allowance		0.2
Average Recorded Investment
Receivables with specific allowance		0.2
Wholesale receivables
Recorded Investment
Receivables with specific allowance	11.8	0.1	9.7
Receivables without specific allowance	0.3		0.6
Unpaid Principal Balance
Receivables with specific allowance	11.8	0.1	9.7
Receivables without specific allowance	0.3		0.6
Specific Allowance	1.3	0.1	1.0
Average Recorded Investment
Receivables with specific allowance	11.8	$ 0.1	9.7
Receivables without specific allowance	0.5		0.7
Financing leases
Recorded Investment
Receivables with specific allowance	0.5		0.8
Unpaid Principal Balance
Receivables with specific allowance	0.4		0.7
Specific Allowance	0.1		0.2
Average Recorded Investment
Receivables with specific allowance	$ 0.3		$ 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=49124121&loc=d3e5212-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5258-111524

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-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5258-111524

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