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Partners' Capital and Distributions - Noncontrolling Interests in Subsidiaries (Details) - USD ($) $ in Millions	1 Months Ended
	Nov. 30, 2022	Dec. 31, 2024
Cactus II Pipeline LLC
Partners' Capital and Distributions [Line Items]
Additional interest acquired (as a percent)	5.00%
Business combination, step acquisition, equity interest in acquiree, including subsequent acquisition (as a percent)	70.00%
Cactus II Pipeline LLC | Noncontrolling Interests
Partners' Capital and Distributions [Line Items]
Noncontrolling interest, increase from business combination	$ 526
Plains Oryx Permian Basin LLC
Partners' Capital and Distributions [Line Items]
Noncontrolling interest, ownership (as a percent)		35.00%
Cactus II Pipeline LLC
Partners' Capital and Distributions [Line Items]
Noncontrolling interest, ownership (as a percent)		30.00%
Cactus II Pipeline LLC | Enbridge
Partners' Capital and Distributions [Line Items]
Noncontrolling interest, ownership (as a percent)	30.00%
Red River Pipeline Company LLC
Partners' Capital and Distributions [Line Items]
Noncontrolling interest, ownership (as a percent)		33.00%

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Partners' Capital and Distributions [Line Items]

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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-Name Accounting Standards Codification
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