| Document and Entity Information | Sep. 19, 2024 |
| Cover [Abstract] | |
| Entity Registrant Name | AVIENT CORP |
| Amendment Flag | false |
| Entity Central Index Key | 0001122976 |
| Document Type | 8-K |
| Document Period End Date | Sep. 19, 2024 |
| Entity Incorporation State Country Code | OH |
| Entity File Number | 1-16091 |
| Entity Tax Identification Number | 34-1730488 |
| Entity Address, Address Line One | 33587 Walker Road |
| Entity Address, City or Town | Avon Lake |
| Entity Address, State or Province | OH |
| Entity Address, Postal Zip Code | 44012 |
| City Area Code | 440 |
| Local Phone Number | 930-1000 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | Common Shares, par value $.01 per share |
| Trading Symbol | AVNT |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
