| Document and Entity Information | Apr. 16, 2024 |
| Cover [Abstract] | |
| Amendment Flag | false |
| Entity Central Index Key | 0001552275 |
| Document Type | 8-K |
| Document Period End Date | Apr. 16, 2024 |
| Entity Registrant Name | SUNOCO LP |
| Entity Incorporation State Country Code | DE |
| Entity File Number | 001-35653 |
| Entity Tax Identification Number | 30-0740483 |
| Entity Address, Address Line One | 8111 Westchester Drive |
| Entity Address, Address Line Two | Suite 400 |
| Entity Address, City or Town | Dallas |
| Entity Address, State or Province | TX |
| Entity Address, Postal Zip Code | 75225 |
| City Area Code | (214) |
| Local Phone Number | 981-0700 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | Common Units Representing Limited Partner Interests |
| Trading Symbol | SUN |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
