| **Summary of Significant Accounting Policies (Details) - USD ($)**     | 12 Months Ended |              |
|------------------------------------------------------------------------|-----------------|--------------|
||
| **Property, Plant and Equipment [Line Items]**                         |            |         |   |   |
| Total capitalized interest                                             | $ 49,000,000    | $ 84,000,000 | $ 144,000,000 |   |
| Goodwill                                                               | 1,310,000,000   | 0            |   | $ 779,000,000 |
| Goodwill Impairment                                                    | $ 0             | $ 0          | 779,000,000 |   |
| Goodwill allocation                                                    |            |         | 4,000,000 |   |
| Goodwill fair value                                                    |            |         | 0 |   |
| Rosetta Merger                                                         |            |         |   |   |
| **Property, Plant and Equipment [Line Items]**                         |            |         |   |   |
| Acquired goodwill                                                      |            |         | $ 163,000,000 |   |
| Minimum                                                                |            |         |   |   |
| **Property, Plant and Equipment [Line Items]**                         |            |         |   |   |
| Useful lives of gathering facilitates and processing plants (in years) | 3 years         |         |   |   |
| Maximum                                                                |            |         |   |   |
| **Property, Plant and Equipment [Line Items]**                         |            |         |   |   |
| Useful lives of gathering facilitates and processing plants (in years) | 30 years        |         |   |   |

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|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.
+ References
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| - Definition
Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.
+ References
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| - Definition
Fair value portion of asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.
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|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.
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| - Definition
Amount of transfers into (out of) an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.
+ References
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| - Definition
Amount of interest capitalized during the period.
+ References
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.
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| - Definition
Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.
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