| Cover Page Cover Page | Aug. 20, 2020 |
| Document Information [Line Items] | |
| Document Type | 8-K |
| Document Period End Date | Aug. 20, 2020 |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-12930 |
| Entity Tax Identification Number | 58-1960019 |
| Entity Address, Address Line One | 4205 River Green Parkway |
| Entity Address, City or Town | Duluth |
| Entity Address, State or Province | GA |
| Entity Address, Postal Zip Code | 30096 |
| City Area Code | 770 |
| Local Phone Number | 813-9200 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common stock |
| Trading Symbol | AGCO |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0000880266 |
| Current Fiscal Year End Date | --12-31 |
| Amendment Flag | false |
| Entity Registrant Name | AGCO CORP /DE |
