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Revenue Recognition - Schedule of Expected Future Revenue (Details) $ in Millions | Sep. 30, 2019 USD ($)
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Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-10-01 |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Performance obligation expected to be satisfied | $ 92
Remaining performance obligation, period | 3 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-10-01 | Eliminations |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Performance obligation expected to be satisfied | $ (127)
Remaining performance obligation, period | 3 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-10-01 | Oil and Gas | Operating Segments |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Performance obligation expected to be satisfied | $ 26
Remaining performance obligation, period | 3 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-10-01 | WES Midstream | Operating Segments |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Performance obligation expected to be satisfied | $ 193
Remaining performance obligation, period | 3 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01 |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Performance obligation expected to be satisfied | $ 377
Remaining performance obligation, period | 1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01 | Eliminations |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Performance obligation expected to be satisfied | $ (589)
Remaining performance obligation, period | 1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01 | Oil and Gas | Operating Segments |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Performance obligation expected to be satisfied | $ 103
Remaining performance obligation, period | 1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01 | WES Midstream | Operating Segments |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Performance obligation expected to be satisfied | $ 863
Remaining performance obligation, period | 1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01 |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Performance obligation expected to be satisfied | $ 370
Remaining performance obligation, period | 2 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01 | Eliminations |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Performance obligation expected to be satisfied | $ (645)
Remaining performance obligation, period | 2 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01 | Oil and Gas | Operating Segments |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Performance obligation expected to be satisfied | $ 103
Remaining performance obligation, period | 2 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01 | WES Midstream | Operating Segments |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Performance obligation expected to be satisfied | $ 912
Remaining performance obligation, period | 2 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01 |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Performance obligation expected to be satisfied | $ 267
Remaining performance obligation, period | 3 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01 | Eliminations |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Performance obligation expected to be satisfied | $ (703)
Remaining performance obligation, period | 3 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01 | Oil and Gas | Operating Segments |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Performance obligation expected to be satisfied | $ 7
Remaining performance obligation, period | 3 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01 | WES Midstream | Operating Segments |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Performance obligation expected to be satisfied | $ 963
Remaining performance obligation, period | 3 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01 |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Performance obligation expected to be satisfied | $ 232
Remaining performance obligation, period | 4 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01 | Eliminations |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Performance obligation expected to be satisfied | $ (690)
Remaining performance obligation, period | 4 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01 | Oil and Gas | Operating Segments |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Performance obligation expected to be satisfied | $ 7
Remaining performance obligation, period | 4 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01 | WES Midstream | Operating Segments |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Performance obligation expected to be satisfied | $ 915
Remaining performance obligation, period | 4 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01 |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Performance obligation expected to be satisfied | $ 691
Remaining performance obligation, period |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01 | Eliminations |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Performance obligation expected to be satisfied | $ (3,768)
Remaining performance obligation, period |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01 | Oil and Gas | Operating Segments |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Performance obligation expected to be satisfied | $ 60
Remaining performance obligation, period |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01 | WES Midstream | Operating Segments |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Performance obligation expected to be satisfied | $ 4,399
Remaining performance obligation, period |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: (nil) |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Performance obligation expected to be satisfied | $ 2,029
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: (nil) | Eliminations |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Performance obligation expected to be satisfied | (6,522)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: (nil) | Oil and Gas | Operating Segments |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Performance obligation expected to be satisfied | 306
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: (nil) | WES Midstream | Operating Segments |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Performance obligation expected to be satisfied | $ 8,245

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