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Acquisitions, Divestitures and Other Transactions - Rattler Permian Transaction Narrative (Details) - USD ($) $ in Millions | 1 Months Ended | 3 Months Ended |  |
--- | --- | --- | --- | ---
Nov. 30, 2023 | Jul. 31, 2022 | Sep. 30, 2023 | Jun. 30, 2023 | Sep. 30, 2022
OMOG JV LLC (“OMOG”) |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Ownership interest in unconsolidated entity prior to acquisition (as a percent) |  |  |  |  | 40.00%
OMOG JV LLC (“OMOG”) | Plains Oryx Permian Basin LLC |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Ownership interest in unconsolidated entity prior to acquisition (as a percent) |  |  |  | 57.00% |
Plains Oryx Permian Basin LLC |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Consolidated subsidiary, ownership interest held by the parent (as a percent) | 65.00% | 65.00% | 65.00% |  |
OMOG JV LLC and Southern Delaware Gathering Assets |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Business acquisition amount, net to our interest in the Permian JV |  |  | $ 191 |  |
Consideration transferred |  |  | 294 |  |
Business combination, consideration transferred, including equity interest in acquire held prior to combination |  |  | $ 532 |  |
OMOG JV LLC and Southern Delaware Gathering Assets | Level 3 | Measurement Input, Discount Rate | Valuation Technique, Discounted Cash Flow | Minimum | Intangible Assets |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Business combination, measurement input |  |  | 0.21 |  |
OMOG JV LLC and Southern Delaware Gathering Assets | Level 3 | Measurement Input, Discount Rate | Valuation Technique, Discounted Cash Flow | Maximum | Intangible Assets |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Business combination, measurement input |  |  | 0.23 |  |
OMOG JV LLC and Southern Delaware Gathering Assets | Rattler | Plains Oryx Permian Basin LLC |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Cash consideration, including working capital and other adjustments |  |  | $ 294 |  |
OMOG JV LLC (“OMOG”) |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Additional interest acquired (as a percent) |  |  | 43.00% |  |
Fair value amount |  |  | $ 239 |  |
OMOG JV LLC (“OMOG”) | Plains Oryx Permian Basin LLC |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Business combination, step acquisition, equity interest in acquiree, including subsequent acquisition (as a percent) |  |  | 100.00% |  |
Business combination, step acquisition, equity interest in acquire (as a percent) |  |  |  | 57.00% |
OMOG JV LLC (“OMOG”) | Gains/(losses) on investments in unconsolidated entities, net |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Equity interest in acquiree, remeasurement gain |  |  | $ 29 |  |
OMOG JV LLC (“OMOG”) | Level 3 | Measurement Input, Discount Rate | Valuation Technique, Discounted Cash Flow |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Business combination, measurement input |  |  | 0.11 |  |
OMOG JV LLC (“OMOG”) | Rattler |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Additional interest acquired (as a percent) |  |  | 43.00% |  |
OMOG JV LLC (“OMOG”) | Rattler | Plains Oryx Permian Basin LLC |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Additional interest acquired (as a percent) |  |  | 43.00% |  |

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