| Cover Page | Nov. 06, 2019 |
| Cover page. | |
| Document Type | 8-K |
| Document Period End Date | Nov. 6, 2019 |
| Entity Registrant Name | VALVOLINE INC |
| Entity Incorporation, State or Country Code | KY |
| Entity File Number | 001-37884 |
| Entity Tax Identification Number | 30-0939371 |
| Entity Address, Address Line One | 100 Valvoline Way |
| Entity Address, City or Town | Lexington |
| Entity Address, State or Province | KY |
| Entity Address, Postal Zip Code | 40509 |
| City Area Code | 859 |
| Local Phone Number | 357-7777 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common stock, par value $0.01 per share |
| Trading Symbol | VVV |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0001674910 |
| Amendment Flag | false |
