Receivables (Details 2) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Apr. 30, 2015	Apr. 30, 2014	Apr. 30, 2015	Apr. 30, 2014	Oct. 31, 2014
Allowance:
Beginning of period balance	$ 111.5	$ 111.0	$ 112.4	$ 111.4
Provision (credit) for credit losses	11.2	4.6	12.1	6.9
Write-offs	(16.8)	(10.8)	(22.9)	(17.9)
Recoveries	5.5	4.7	10.7	9.5
Other changes (primarily translation adjustments)	(0.2)	0.2	(1.1)	(0.2)
End of period balance	111.2	109.7	111.2	109.7
Balance individually evaluated	2.0	1.9	2.0	1.9
Receivables:
End of period balance	30,134.4	30,357.6	30,134.4	30,357.6	30,505.9
Balance individually evaluated	22.0	35.3	22.0	35.3
Retail notes
Allowance:
Beginning of period balance	55.5	50.4	56.1	50.7
Provision (credit) for credit losses	3.7	6.6	4.6	7.6
Write-offs	(5.0)	(4.8)	(7.4)	(7.1)
Recoveries	1.6	1.1	3.0	2.4
Other changes (primarily translation adjustments)	(0.1)	0.1	(0.6)	(0.2)
End of period balance	55.7	53.4	55.7	53.4
Balance individually evaluated	1.7		1.7
Receivables:
End of period balance	18,452.3	18,382.3	18,452.3	18,382.3
Balance individually evaluated	19.1	21.3	19.1	21.3
Revolving charge accounts
Allowance:
Beginning of period balance	39.9	39.7	39.9	39.7
Provision (credit) for credit losses	7.7	2.2	7.5	3.3
Write-offs	(11.2)	(5.7)	(14.8)	(10.2)
Recoveries	3.5	3.5	7.3	6.9
End of period balance	39.9	39.7	39.9	39.7
Balance individually evaluated	0.2		0.2
Receivables:
End of period balance	2,290.7	2,158.4	2,290.7	2,158.4
Balance individually evaluated	0.2	2.8	0.2	2.8
Wholesale receivables
Allowance:
Beginning of period balance	7.3	6.4	7.6	6.4
Provision (credit) for credit losses	(0.5)	0.3	(0.4)	0.3
Write-offs		(0.2)	(0.2)	(0.2)
Recoveries	0.4		0.4	0.1
Other changes (primarily translation adjustments)		0.1	(0.2)
End of period balance	7.2	6.6	7.2	6.6
Balance individually evaluated	0.1	0.1	0.1	0.1
Receivables:
End of period balance	8,856.2	9,258.6	8,856.2	9,258.6
Balance individually evaluated	2.7	0.3	2.7	0.3
Other
Allowance:
Beginning of period balance	8.8	14.5	8.8	14.6
Provision (credit) for credit losses	0.3	(4.5)	0.4	(4.3)
Write-offs	(0.6)	(0.1)	(0.5)	(0.4)
Recoveries		0.1		0.1
Other changes (primarily translation adjustments)	(0.1)		(0.3)
End of period balance	8.4	10.0	8.4	10.0
Balance individually evaluated		1.8		1.8
Receivables:
End of period balance	535.2	558.3	535.2	558.3
Balance individually evaluated		$ 10.9		$ 10.9