Goodwill and Intangible Assets, net (Tables)

12 Months Ended

Dec. 31, 2025

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

Goodwill balances and activity for the years ended December 31, 2025 and 2024 consisted of the following:

	Segment
	Fuel Distribution		Pipeline Systems		Terminals		Refinery		Consolidated
	(in millions)
Balance at December 31, 2023	$	1,362	$	—	$	237	$	—	$	1,599
West Texas Sale	(138)		—		—		—		(138)
NuStar Acquisition	16		—		—		—		16
Balance at December 31, 2024	1,240		—		237		—		1,477
Parkland Acquisition	1,070		38		—		420		1,528
Other	15		—		—		6		21
Balance at December 31, 2025	$	2,325	$	38	$	237	$	426	$	3,026

Schedule of Finite-Lived and Indefinite-Lived Intangible Assets

Gross carrying amounts and accumulated amortization for each major class of intangible assets, excluding goodwill, consisted of the following:

	December 31, 2025						December 31, 2024
	Gross Carrying Amount		Accumulated Amortization		Net Book Value		Gross Carrying Amount		Accumulated Amortization		Net Book Value
Indefinite-lived
Tradenames	$	606	$	—	$	606	$	302	$	—	$	302
Finite-lived
Customer relations including supply agreements	2,241		520		1,721		721		477		244
Other intangibles	93		9		84		8		7		1
Intangible assets, net	$	2,940	$	529	$	2,411	$	1,031	$	484	$	547

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

As of December 31, 2025, the Partnership’s estimate of amortization for each of the five succeeding fiscal years and thereafter for finite-lived intangibles was as follows:

	Amortization
2026	$	124
2027	124
2028	124
2029	120
2030	118
Thereafter	1,195
Total	$	1,805