Schedule of partners capital.

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- Definition

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

+ References

No definition available.

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- Definition

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

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

The number of limited partner units outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

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

+ References

No definition available.

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- Definition

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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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Equity (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Equity (Details) - USD ($) $ in Millions	Mar. 31, 2026	Sep. 30, 2026	Dec. 31, 2025
Schedule of Partners' Capital [Line Items]
Foreign currency translation adjustment	$ (6)	$ (63)
Total AOCI included in member's equity, net of tax		$ (63)	$ (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		136,896,738	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%