Cover - USD ($) $ in Billions	12 Months Ended
	Dec. 31, 2025	Feb. 13, 2026	Jun. 30, 2025
Document Information [Line Items]
Amendment Flag	false
Entity Central Index Key	0001552275
Local Phone Number	981-0700
Entity Current Reporting Status	Yes
Entity Well-known Seasoned Issuer	Yes
Entity Address, Address Line One	8111 Westchester Drive
Entity Address, City or Town	Dallas
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	75225
City Area Code	214
Title of 12(b) Security	Common Units Representing Limited Partner Interests
Trading Symbol	SUN
Security Exchange Name	NYSE
Entity Emerging Growth Company	false
Document Period End Date	Dec. 31, 2025
Entity Registrant Name	SUNOCO LP
Entity Incorporation, State or Country Code	DE
Entity File Number	001-35653
Entity Tax Identification Number	30-0740483
Document Type	10-K
Current Fiscal Year End Date	--12-31
Entity Address, Address Line Two	Suite 400
Entity Voluntary Filers	No
Entity Interactive Data Current	Yes
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 5.8
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2025
Document Financial Statement Error Correction [Flag]	false
Document Annual Report	true
Document Transition Report	false
Auditor Name	GRANT THORNTON LLP
Auditor Location	Dallas, Texas
Auditor Firm ID	248
Common Units [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		136,894,754
Class C Units [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		16,410,780
Class D Units
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		51,517,198