Receivables (Details 3) (USD $) In Millions, unless otherwise specified	6 Months Ended		12 Months Ended
	Apr. 30, 2014	Apr. 30, 2013	Oct. 31, 2013
Recorded Investment
Receivables with specific allowance	$ 10.0	$ 18.9	$ 18.1
Receivables without specific allowance	5.6	8.2	7.2
Total	15.6	27.1	25.3
Unpaid Principal Balance
Receivables with specific allowance	9.9	18.9	18.0
Receivables without specific allowance	5.5	8.0	7.1
Total	15.4	26.9	25.1
Specific Allowance	1.9	3.9	3.8
Average Recorded Investment
Receivables with specific allowance	11.5	19.3	19.0
Receivables without specific allowance	6.4	8.4	8.0
Total	17.9	27.7	27.0
Agriculture and turf
Recorded Investment
Total	13.8	24.6	23.2
Unpaid Principal Balance
Total	13.6	24.5	23.0
Specific Allowance	1.9	3.9	3.8
Average Recorded Investment
Total	16.0	25.1	24.6
Construction and forestry
Recorded Investment
Total	1.8	2.5	2.1
Unpaid Principal Balance
Total	1.8	2.4	2.1
Average Recorded Investment
Total	1.9	2.6	2.4
Retail notes
Recorded Investment
Receivables without specific allowance	5.6	8.2	7.2
Unpaid Principal Balance
Receivables without specific allowance	5.5	8.0	7.1
Average Recorded Investment
Receivables without specific allowance	6.4	8.4	8.0
Wholesale receivables
Recorded Investment
Receivables with specific allowance	0.1	0.2	0.1
Unpaid Principal Balance
Receivables with specific allowance	0.1	0.2	0.1
Specific Allowance	0.1	0.2	0.1
Average Recorded Investment
Receivables with specific allowance	0.1	0.2	0.2
Operating loans
Recorded Investment
Receivables with specific allowance	9.9	18.7	18.0
Unpaid Principal Balance
Receivables with specific allowance	9.8	18.7	17.9
Specific Allowance	1.8	3.7	3.7
Average Recorded Investment
Receivables with specific allowance	$ 11.4	$ 19.1	$ 18.8