Commitments and Contingencies - Commitments (Details) $ in Millions	Oct. 29, 2017 USD ($)
Commitments
Restricted other assets	$ 40.0
Limited Liability Company John Deere Financial
Commitments
Unused commitments	38.9
John Deere dealers
Commitments
Unused commitments	8,900.0
Customers
Commitments
Unused commitments	$ 26,700.0
Minimum percentage of unused commitments to extend credit to customers that relate to revolving charge accounts	95.00%