| **Acquisitions and Divestitures - Narrative (Details) a in Thousands, shares in Millions, $ in Millions**                         |        | 1 Months Ended | 3 Months Ended |        |        |        |        |
|-----------------------------------------------------------------------------------------------------------------------------------|--------|----------------|----------------|--------|--------|--------|--------|
||
| **Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]** |   |           |           |   |   |   |   |   |   |   |
| Cash consideration                                                                                                                |   |           |           |   | $ 559  |   |   | $ 286 |   |   |
| Proceeds from issuance of preferred equity                                                                                        |   |           |           |   | 99     | $ 0    |   |   |   |   |
| Asset Impairments                                                                                                                 |   |           |           |   | 0      | 168    |   |   |   |   |
| Cash consideration                                                                                                                |   |           |           |   | 0      | (650)  |   |   |   |   |
| Gain (loss) on divestiture                                                                                                        |   |           |           |   | 0      | 588    |   |   |   |   |
| Proceeds from divestiture                                                                                                         |   |           |           |   | 123    | 865    |   |   |   |   |
| Intangible assets                                                                                                                 |   |           |           |   | 302    |   |   | 310 |   |   |
| Goodwill                                                                                                                          |   |           |           |   | $ 110  |   |   | $ 110 |   |   |
| CONE Gathering LLC                                                                                                                |   |           |           |   |   |   |   |   |   |   |
| **Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]** |   |           |           |   |   |   |   |   |   |   |
| Gain (loss) on divestiture                                                                                                        |   |           |           | $ 196  |   |   |   |   |   |   |
| Ownership                                                                                                                         |   |           |           | 50.00% |   |   |   |   |   | 33.50% |
| Proceeds from divestiture                                                                                                         |   |           |           | $ 308  |   |   |   |   |   |   |
| Noble Midstream                                                                                                                   |   |           |           |   |   |   |   |   |   |   |
| **Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]** |   |           |           |   |   |   |   |   |   |   |
| Equity commitment                                                                                                                 | $ 200  |           |           |   |   |   |   |   |   |   |
| Proceeds from issuance of preferred equity                                                                                        | 100    |           |           |   |   |   |   |   |   |   |
| Remaining commitment amount                                                                                                       | $ 100  |           |           |   |   |   |   |   |   |   |
| Annual dividend rate                                                                                                              |   |           |           |   | 6.50%  |   |   |   |   |   |
| Noble Midstream | Saddle Butte                                                                                                    |   |           |           |   |   |   |   |   |   |   |
| **Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]** |   |           |           |   |   |   |   |   |   |   |
| Consideration                                                                                                                     |   |           |           | $ 681  |   |   |   |   |   |   |
| Property, plant and equipment                                                                                                     |   |           | $ 206          |   |   | 206    |   |   |   |   |
| Intangible assets                                                                                                                 |   |           | 340            |   |   | 340    |   |   |   |   |
| Goodwill                                                                                                                          |   |           | $ 110          |   |   | $ 110  |   |   |   |   |
| EPIC Y-Grade, LP | Noble Midstream                                                                                                |   |           |           |   |   |   |   |   |   |   |
| **Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]** |   |           |           |   |   |   |   |   |   |   |
| Step acquisition, percentage acquired                                                                                             |   |           |           |   | 15.00% |   |   |   |   |   |
| Cash consideration                                                                                                                |   |           |           |   | $ 227  |   |   |   |   |   |
| EPIC Crude Holdings, LP | Noble Midstream                                                                                         |   |           |           |   |   |   |   |   |   |   |
| **Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]** |   |           |           |   |   |   |   |   |   |   |
| Step acquisition, percentage acquired                                                                                             | 30.00% |           |           |   | 30.00% |   |   |   |   |   |
| Delaware Crossing JV | Noble Midstream                                                                                            |   |           |           |   |   |   |   |   |   |   |
| **Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]** |   |           |           |   |   |   |   |   |   |   |
| Cash consideration                                                                                                                |   |           |           |   | $ 38   |   |   |   |   |   |
| Pipeline capacity (in MBbl/d) | MMBbls                                                                                            |   | 160            |           |   |   |   |   |   |   |   |
| Tamar and Dalit Fields                                                                                                            |   |           |           |   |   |   |   |   |   |   |
| **Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]** |   |           |           |   |   |   |   |   |   |   |
| Ownership interest                                                                                                                |   |           | 32.50%         |   |   | 32.50% |   |   |   |   |
| CNX Midstream Partners                                                                                                            |   |           |           |   |   |   |   |   |   |   |
| **Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]** |   |           |           |   |   |   |   |   |   |   |
| Equity owned (units) | shares                                                                                                     |   |           |           |   |   |   |   |   |   | 21.7 |
| Saddle Butte | Noble Midstream                                                                                                    |   |           |           |   |   |   |   |   |   |   |
| **Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]** |   |           |           |   |   |   |   |   |   |   |
| Ownership interest                                                                                                                |   |           |           | 54.40% |   |   |   |   |   |   |
| Disposed by sale | Reeves County Assets                                                                                           |   |           |           |   |   |   |   |   |   |   |
| **Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]** |   |           |           |   |   |   |   |   |   |   |
| Proved and unproved non-core acreage sold (in acres) | a                                                                          |   | 13             |           |   |   |   |   |   |   |   |
| Proceeds from divestitures                                                                                                        |   | $ 131          |           |   |   |   |   |   |   |   |
| Disposed by sale | Other US Onshore Properties                                                                                    |   |           |           |   |   |   |   |   |   |   |
| **Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]** |   |           |           |   |   |   |   |   |   |   |
| Proceeds from divestitures                                                                                                        |   |           |           |   | $ 8    | $ 10   |   |   |   |   |
| Gain (loss) on divestiture                                                                                                        |   |           |           |   |   | 6      |   |   |   |   |
| Disposed by sale | Gulf of Mexico Assets                                                                                          |   |           |           |   |   |   |   |   |   |   |
| **Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]** |   |           |           |   |   |   |   |   |   |   |
| Total transaction value                                                                                                           |   |           | $ 480          |   |   | 480    |   |   | $ 480 |   |
| Retained transaction related obligations                                                                                          |   |           | $ 92           |   |   | 92     |   |   |   |   |
| Asset Impairments                                                                                                                 |   |           |           |   |   | $ 168  |   |   |   |   |
| Disposed by sale | Tamar and Dalit Fields                                                                                         |   |           |           |   |   |   |   |   |   |   |
| **Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]** |   |           |           |   |   |   |   |   |   |   |
| Percentage ownership sold                                                                                                         |   |           | 7.50%          |   |   | 7.50%  |   |   |   |   |
| Cash consideration                                                                                                                |   |           | $ 487          |   |   |   |   |   |   |   |
| Shares received in divestiture (in shares) | shares                                                                               |   |           | 38.5           |   |   |   |   |   |   |   |
| Value of shares                                                                                                                   |   |           | $ 224          |   |   |   |   |   |   |   |
| Gain (loss) on divestiture                                                                                                        |   |           | 386            |   |   |   |   |   |   |   |
| Tax effect                                                                                                                        |   |           | $ 90           |   |   |   |   |   |   |   |
| Disposed by sale | Southwest Royalties                                                                                            |   |           |           |   |   |   |   |   |   |   |
| **Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]** |   |           |           |   |   |   |   |   |   |   |
| Proceeds from sale                                                                                                                |   |           |           | $ 60   |   |   |   |   |   |   |
| Scenario, Forecast | Tamar and Dalit Fields                                                                                       |   |           |           |   |   |   |   |   |   |   |
| **Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]** |   |           |           |   |   |   |   |   |   |   |
| Ownership interest                                                                                                                |   |           |           |   |   |   | 25.00% |   |   |   |

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Oil And Gas Producing Properties, Area Of Proved And Unproved Acreage, Divested
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Pipeline System, Daily Capacity
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Redeemable Convertible Preferred Stock, Commitment Amount
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Shares Received in Divestiture of Interest in Equity Method Investment
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| - Definition
Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.
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| - Definition
The amount of identifiable intangible assets recognized as of the acquisition date.
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The amount of property, plant, and equipment recognized as of the acquisition date.
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Percentage of voting equity interests acquired in a business combination achieved in stages, including equity interests in the acquiree held by the acquirer immediately before the acquisition date and acquired at the acquisition date.
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| - Definition
Amount of tax expense (benefit) on gain (loss) not previously recognized resulting from the disposal of a discontinued operation.
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Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.
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| - Definition
Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations.
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| - Definition
The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.
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| - Definition
This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.
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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.
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The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale.
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| - Definition
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
Balance held at close of period in number of shares.
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The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.
+ References
No definition available.
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The net cash outflow or inflow associated with the acquisition or sale of a business segment during the period.
+ References
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The percentage rate used to calculate dividend payments on preferred stock.
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The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.
+ References
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| - Definition
The cash inflow from issuance of callable preferred stock which is identified as being convertible to another type of financial security at the option of the issuer or the holder.
+ References
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| - Definition
The cash inflow associated with the sale of equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.
+ References
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The cash inflow to dispose of long-lived, physical assets and mineral interests in oil and gas properties used for normal oil and gas operations.
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