Segment Reporting - Additional Information (Details) $ in Millions	12 Months Ended
	Dec. 31, 2025 USD ($) segment	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Segment Reporting Information [Line Items]
Unrealized gain on commodity derivatives	$ 11	$ (12)	$ 21
Inventory valuation adjustments	156	86	114
Equity in earnings of unconsolidated affiliates	(143)	(60)	(5)
Other non-cash adjustments	(38)	32	22
Income tax expense	62	175	36
Adjusted EBITDA	2,047	1,457	964
Cost of Revenue	22,409	20,595	21,703
Revenues	$ 25,201	22,693	23,068
ASSETS
Number of Reportable Segments | segment	4
UNITED STATES
Segment Reporting Information [Line Items]
Revenues	$ 22,495	22,649	23,068
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Cost of Revenue	(1,361)	(1,029)	(404)
Revenues	$ (1,361)	(1,029)	(404)
Fuel Distribution
ASSETS
Segment Reporting, Description of All Other Segments	Our Fuel Distribution segment supplies motor fuel to independently-operated dealer stations, distributors, commission agents and other consumers. Also included in our Fuel Distribution segment is lease income from properties that we lease or sublease, as well as the Partnership’s credit card services, franchise royalties and retail operations in North America and the Greater Caribbean.
Fuel Distribution | Operating Segments [Member]
Segment Reporting Information [Line Items]
Adjusted EBITDA	$ 990	908	865
Cost of Revenue	22,419	20,635	21,761
Revenues	$ 23,933	21,822	22,986
Pipeline Systems
ASSETS
Segment Reporting, Description of All Other Segments	Our Pipeline Systems segment includes an integrated pipeline and terminal network comprised of approximately 6,000 miles of refined product pipeline (including the pipeline of J.C. Nolan), approximately 6,000 miles of crude oil pipeline (including the pipelines of ET-S Permian), approximately 2,000 miles of ammonia pipeline and 69 terminals.
Pipeline Systems | Operating Segments [Member]
Segment Reporting Information [Line Items]
Adjusted EBITDA	$ 718	377	11
Cost of Revenue	13	30	(2)
Revenues	$ 751	565	1
Terminals
ASSETS
Segment Reporting, Description of All Other Segments	Our Terminals segment is composed of four transmix processing facilities and 83 terminals (two in Europe, six in Hawaii, nine in Canada, 13 in the Greater Caribbean and 53 in the continental United States).
Terminals | Operating Segments [Member]
Segment Reporting Information [Line Items]
Adjusted EBITDA	$ 299	172	88
Cost of Revenue	904	959	348
Revenues	$ 1,404	1,335	485
Refinery
ASSETS
Segment Reporting, Description of All Other Segments	Our Refinery segment is composed of the Burnaby Refinery, which was acquired in the Parkland Acquisition, with an operational capacity of approximately 55,000 barrels per day. The refinery consumes primarily sweet conventional crude oil and sweet synthetic crude oil to produce gasoline, diesel and jet fuel among other products. The refinery meets federal and provincial regulations for lower carbon intensity transportation fuels through a combination of co-processing of bio feedstocks (i.e. canola oil, tallow, tall oil and others) and blending of low-carbon intensity fuels such as bio-diesel, renewable diesel, ethanol and others. Fuel from the refinery is sold primarily through Sunoco-owned retail network in British Columbia (“BC”), directly to Vancouver International Airport, and to commercial and cardlock customers.
Refinery | Operating Segments [Member]
Segment Reporting Information [Line Items]
Adjusted EBITDA	$ 40	0	0
Cost of Revenue	434	0	0
Revenues	$ 474	$ 0	$ 0