Commitments and Contingencies (Details) (USD $) In Millions, unless otherwise specified	Apr. 30, 2013
John Deere Financial Inc. | Guarantees of debt and derivatives | Commercial paper
Guarantee Obligations
Guarantee obligations maximum exposure	$ 147
John Deere Financial Inc. | Guarantees of debt and derivatives | Medium-term notes
Guarantee Obligations
Guarantee obligations maximum exposure	1,349
John Deere Financial Inc. | Guarantees of debt and derivatives | Derivative Instruments
Guarantee Obligations
Guarantee obligations maximum exposure	6
Notional amount	1,790
John Deere Canada Funding Inc. (JDCFI) | VIE-Not Primary Beneficiary
Guarantee Obligations
Carrying value of assets or liabilities related to JDCFI	0
John Deere Canada Funding Inc. (JDCFI) | VIE-Not Primary Beneficiary | Guarantees of debt and derivatives | Medium-term notes
Guarantee Obligations
Guarantee obligations maximum exposure	$ 834