Fair Value Measurements (Details) - USD ($) $ in Millions	Jul. 31, 2015	Oct. 31, 2014	Jul. 31, 2014
Fair Values of Financial Instruments
Securitization borrowings	$ 4,595.4	$ 4,558.5	$ 4,142.8
Current maturities of long-term borrowings	3,730.3	3,899.0	4,255.4
Long-term borrowings	16,659.0	17,056.3	16,367.4
Level 3
Fair Values of Financial Instruments
Receivables financed - net	25,455.9	25,716.9	26,909.7
Retail notes securitized - net	4,709.1	4,573.4	4,221.6
Level 2
Fair Values of Financial Instruments
Securitization borrowings	4,596.0	4,561.6	4,145.4
Current maturities of long-term borrowings	3,736.7	3,910.1	4,270.8
Long-term borrowings	16,756.8	17,212.9	16,576.0
Carrying Value
Fair Values of Financial Instruments
Receivables financed - net	25,525.1	25,791.2	27,032.7
Retail notes securitized - net	4,737.8	4,602.3	4,264.2
Securitization borrowings	4,595.4	4,558.5	4,142.8
Current maturities of long-term borrowings	3,730.3	3,899.0	4,255.4
Long-term borrowings	$ 16,659.0	$ 17,056.3	$ 16,367.4