Commitments and Contingencies (Details 2) (USD $)	Apr. 30, 2014
Commitments
Restricted other assets	$ 6,000,000
John Deere dealers
Commitments
Unused commitments	6,500,000,000
Customers
Commitments
Unused commitments	$ 28,000,000,000
Minimum percentage of unused commitments to extend credit to customers that relate to revolving charge accounts	95.00%