| Document and Entity Information | Nov. 27, 2019 |
| Document Type | 8-K |
| Document Period End Date | Nov. 27, 2019 |
| Entity File Number | 1-4121 |
| Entity Registrant Name | DEERE & CO |
| Entity Incorporation, State or Country Code | DE |
| Entity Tax Identification Number | 36-2382580 |
| Entity Address, Address Line One | One John Deere Place |
| Entity Address, City or Town | Moline |
| Entity Address, State or Province | IL |
| Entity Address, Postal Zip Code | 61265 |
| City Area Code | 309 |
| Local Phone Number | 765-8000 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0000315189 |
| Amendment Flag | false |
| Common Stock | |
| Title of 12(b) Security | Common stock, $1 par value |
| Trading Symbol | DE |
| Security Exchange Name | NYSE |
| 8-1/2% Debentures Due 2022 | |
| Title of 12(b) Security | 8½% Debentures Due 2022 |
| Trading Symbol | DE22 |
| Security Exchange Name | NYSE |
| 6.55% Debentures Due 2028 | |
| Title of 12(b) Security | 6.55% Debentures Due 2028 |
| Trading Symbol | DE28 |
| Security Exchange Name | NYSE |
