Fair Value Measurements (Details 3) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Oct. 31, 2012	Oct. 31, 2011	Oct. 31, 2010
Assets and liabilities measured at fair value
Total Receivables	$ 25,090.3	$ 21,952.3
Fair Value, Nonrecurring Measurements | Level 3
Assets and liabilities measured at fair value
Total Receivables	0.1	4.8
Loss on fair value of receivables	0.6	0.3	4.7
Fair Value, Nonrecurring Measurements | Level 3 | Retail notes
Assets and liabilities measured at fair value
Total Receivables		0.3
Loss on fair value of receivables			0.1
Fair Value, Nonrecurring Measurements | Level 3 | Revolving charge accounts
Assets and liabilities measured at fair value
Loss on fair value of receivables	0.5
Fair Value, Nonrecurring Measurements | Level 3 | Wholesale receivables
Assets and liabilities measured at fair value
Total Receivables	0.1	4.3
Loss on fair value of receivables	0.1	0.3	1.9
Fair Value, Nonrecurring Measurements | Level 3 | Operating loans
Assets and liabilities measured at fair value
Total Receivables		0.2
Loss on fair value of receivables			$ 2.7