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v3.19.3

General (Details) | 1 Months Ended | 9 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
May 31, 2008 USD ($) | Sep. 30, 2019 USD ($) segment | Sep. 30, 2018 USD ($) | Dec. 31, 2016 USD ($) | Sep. 27, 2019 USD ($) | Aug. 08, 2019 USD ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($)
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |
Number of reporting segments | segment |  | 4 |  |  |  |  |  |
Interest paid |  | $ 610,000,000 | $ 298,000,000 |  |  |  |  |
Cash and cash equivalents |  | 4,840,000,000 |  |  |  |  | $ 3,033,000,000 |
Restricted cash and restricted cash equivalents |  | 454,000,000 |  |  |  |  | 0 |
Cash and restricted cash included in assets held for sale |  | 16,000,000 |  |  |  |  |  |
Restricted cash and restricted cash equivalents included in long-term receivables and other assets, net |  | 55,000,000 |  |  |  |  |  |
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents |  | 5,365,000,000 | 2,954,000,000 |  |  |  | $ 3,033,000,000 | $ 1,672,000,000
Foreign and State |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |
Income taxes paid |  | 751,000,000 | 838,000,000 |  |  |  |  |
State |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |
Domestic tax refunds |  | 2,000,000 | 2,000,000 |  |  |  |  |
Federal |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |
Income taxes paid |  | $ 0 | $ 0 |  |  |  |  |
Western Midstream Operating, LP |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |
Ownership interest |  | 2.00% |  |  |  |  |  |
WES Midstream |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |
Ownership interest |  | 55.40% |  |  |  |  |  |
WES Midstream | Western Midstream Operating, LP |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |
Ownership interest |  | 98.00% |  |  |  |  |  |
Public Ownership | WES Midstream |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |
Ownership interest |  | 44.60% |  |  |  |  |  |
Anadarko | Western Midstream Operating, LP |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |
Note receivable | $ 260,000,000 |  |  |  |  |  |  |
Notes Payable | Western Midstream Operating, LP |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |
Debt instrument term | 30 years |  |  |  |  |  |  |
Fixed annual rate, payable quarterly | 6.50% |  |  |  |  |  |  |
Mozambique LNG Assets | Discontinued Operations, Disposed of by Sale |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |
Discontinued operations, consideration receivable |  |  |  |  | $ 4,200,000,000 |  |  |
Anadarko |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |
Domestic tax refunds |  |  |  | $ 881,000,000 |  |  |  |
Anadarko | Africa Assets | Discontinued Operations, Held-for-sale |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |
Discontinued operations, consideration receivable |  |  |  |  |  | $ 8,800,000,000 |  |

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