| Document and Entity Information | Nov. 07, 2023 |
| Cover [Abstract] | |
| Entity Registrant Name | FMC CORP |
| Amendment Flag | false |
| Entity Central Index Key | 0000037785 |
| Document Type | 8-K |
| Document Period End Date | Nov. 07, 2023 |
| Entity Incorporation State Country Code | DE |
| Entity File Number | 1-2376 |
| Entity Tax Identification Number | 94-0479804 |
| Entity Address, Address Line One | 2929 Walnut Street |
| Entity Address, City or Town | Philadelphia |
| Entity Address, State or Province | PA |
| Entity Address, Postal Zip Code | 19104 |
| City Area Code | 215 |
| Local Phone Number | 299-6000 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | Common Stock, par value $0.10 per share |
| Trading Symbol | FMC |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
