Equity (Details) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
Jun. 30, 2026	Dec. 31, 2025
Schedule of Partners' Capital [Line Items]
Foreign currency translation adjustment	$ (45)	$ (6)
Total AOCI included in partners’ capital, net of tax	$ (45)	$ (6)
Common Unit, Outstanding	51,517,198	51,517,198
Common Units [Member] \| Sunoco LP
Schedule of Partners' Capital [Line Items]
Limited Partners' Capital Account, Units Outstanding	136,895,901	136,866,854
Class C Units [Member] \| Sunoco LP
Schedule of Partners' Capital [Line Items]
Limited Partners' Capital Account, Units Outstanding	16,410,780	16,410,780
Class D Units \| Sunoco LP
Schedule of Partners' Capital [Line Items]
Limited Partners' Capital Account, Units Outstanding	51,517,198	51,517,198
Energy Transfer \| Sunoco LP
Schedule of Partners' Capital [Line Items]
Subsidiary, Ownership Percentage, Parent	13.90%
Energy Transfer \| Common Units [Member]
Schedule of Partners' Capital [Line Items]
Limited Partners' Capital Account, Units Outstanding	28,463,967
Sunoco LP
Schedule of Partners' Capital [Line Items]
Subsidiary, Ownership Percentage, Parent	100.00%
Sunoco LP \| Class D Units
Schedule of Partners' Capital [Line Items]
Subsidiary, Ownership Percentage, Parent	100.00%

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Amount of tax expense (benefit) allocated to accumulated other comprehensive income (loss) including portion attributable to noncontrolling interest.

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Number of common units of ownership outstanding of a limited liability company (LLC).

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The number of limited partner units outstanding.

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The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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Amount after tax, before reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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