Partners' Capital and Distributions - Narrative (Details)	6 Months Ended
	Jun. 30, 2026
Series A Preferred Units \| PAA
Partners' Capital and Distributions [Line Items]
Number of days after end of quarter within which distributions must be paid to unitholders	45 days
PAA \| Common Units And Series A Preferred Units
Partners' Capital and Distributions [Line Items]
Noncontrolling interests in subsidiaries (as a percent)	69.00%
PAA \| Class B Shares
Partners' Capital and Distributions [Line Items]
Noncontrolling interests in subsidiaries (as a percent)	100.00%
AAP
Partners' Capital and Distributions [Line Items]
Noncontrolling interests in subsidiaries (as a percent)	15.00%
Permian JV
Partners' Capital and Distributions [Line Items]
Noncontrolling interests in subsidiaries (as a percent)	35.00%
Cactus II
Partners' Capital and Distributions [Line Items]
Noncontrolling interests in subsidiaries (as a percent)	30.00%
Red River
Partners' Capital and Distributions [Line Items]
Noncontrolling interests in subsidiaries (as a percent)	33.00%