Commitments and Contingencies (Details 2) (USD $)	Jan. 31, 2014
Commitments
Restricted other assets	$ 44,000,000
John Deere dealers
Commitments
Unused commitments	7,400,000,000
Customers
Commitments
Unused commitments	$ 29,600,000,000
Minimum percentage of unused commitments to extend credit to customers that relate to revolving charge accounts	95.00%