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v3.25.0.1

Partners' Capital and Distributions - Consolidated Subsidiaries (Details) - USD ($) $ in Millions | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Nov. 30, 2022 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Nov. 30, 2020
Common Equity Repurchase Program |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |
Common equity repurchase program, authorized amount |  |  |  |  | $ 500
Common Equity Repurchase Program | PAA |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |
Total purchase price of PAA common units repurchased |  | $ 0 | $ 0 | $ 74 |
Common equity repurchase program, remaining amount |  | $ 198 |  |  |
Cactus II Pipeline LLC |  |  |  |  |
Subsidiary, Sale of Stock [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 |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |
Noncontrolling interest, increase from business combination | $ 526 |  |  |  |
PAA | Common Units and Series A Preferred Units |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |
Noncontrolling interest, ownership (as a percent) |  | 70.00% |  |  |
PAA | Series B Preferred Units |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |
Noncontrolling interest, ownership (as a percent) |  | 100.00% |  |  |
AAP |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |
Noncontrolling interest, ownership (as a percent) |  | 15.00% |  |  |
Plains Oryx Permian Basin LLC |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |
Noncontrolling interest, ownership (as a percent) |  | 35.00% |  |  |
Cactus II Pipeline LLC |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |
Noncontrolling interest, ownership (as a percent) |  | 30.00% |  |  |
Cactus II Pipeline LLC | Enbridge |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |
Noncontrolling interest, ownership (as a percent) | 30.00% |  |  |  |
Red River |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |
Noncontrolling interest, ownership (as a percent) |  | 33.00% |  |  |

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