Commitments and Contingencies (Details 2) (USD $)	Oct. 31, 2012
Commitments
Restricted other assets	$ 22,000,000
Miscellaneous contingent liabilities	2,000,000
John Deere dealers
Commitments
Unused commitments	3,800,000,000
Customers
Commitments
Unused commitments	$ 28,100,000,000
Minimum percentage of unused commitments to extend credit that relate to revolving charge accounts	95.00%