| **Consolidated Statements of Cash Flows - USD ($) $ in Millions**                  | 6 Months Ended |
|------------------------------------------------------------------------------------|----------------|
||
| **Cash Flows From Operating Activities**                                           |           |   |
| Net Loss Including Noncontrolling Interests                                        | $ (1,451)      | $ (602) |
| **Adjustments to Reconcile Net Loss to Net Cash Provided by Operating Activities** |           |   |
| Depreciation, Depletion and Amortization                                           | 1,031          | 1,239 |
| Loss on Marcellus Shale Upstream Divestiture                                       | 2,322          | 0 |
| Deferred Income Tax Benefit                                                        | (873)          | (414) |
| Dry Hole Cost                                                                      | 0              | 114 |
| Gain on Extinguishment of Debt                                                     | 0              | (80) |
| (Gain) Loss on Commodity Derivative Instruments                                    | (167)          | 107 |
| Net Cash Received in Settlement of Commodity Derivative Instruments                | 14             | 322 |
| Stock Based Compensation                                                           | 67             | 40 |
| Other Adjustments for Noncash Items Included in Income                             | 33             | 95 |
| **Changes in Operating Assets and Liabilities**                                    |           |   |
| Increase in Accounts Receivable                                                    | (123)          | (6) |
| Increase (Decrease) in Accounts Payable                                            | 120            | (232) |
| Decrease in Current Income Taxes Payable                                           | (42)           | (51) |
| Other Current Assets and Liabilities, Net                                          | (42)           | (51) |
| Other Operating Assets and Liabilities, Net                                        | (12)           | (41) |
| Net Cash Provided by Operating Activities                                          | 877            | 440 |
| **Cash Flows From Investing Activities**                                           |           |   |
| Additions to Property, Plant and Equipment                                         | (1,215)        | (812) |
| Proceeds from Marcellus Shale Upstream Divestiture                                 | 1,028          | 0 |
| Clayton Williams Energy Acquisition                                                | (616)          | 0 |
| Other Acquisitions                                                                 | (321)          | 0 |
| Additions to Equity Method Investments                                             | (68)           | (6) |
| Proceeds from Divestitures and Other                                               | 101            | 767 |
| Net Cash Used in Investing Activities                                              | (1,091)        | (51) |
| **Cash Flows From Financing Activities**                                           |           |   |
| Dividends Paid, Common Stock                                                       | (92)           | (86) |
| Proceeds from Noble Midstream Services Revolving Credit Facility                   | 195            | 0 |
| Repayment of Noble Midstream Services Revolving Credit Facility                    | (5)            | 0 |
| Proceeds from Term Loan Facility                                                   | 0              | 1,400 |
| Issuance of Noble Midstream Partners Common Units, Net of Offering Costs           | 138            | 0 |
| Proceeds from Revolving Credit Facility                                            | 1,310          | 0 |
| Repayment of Revolving Credit Facility                                             | (1,310)        | 0 |
| Repayment of Clayton Williams Energy Long-term Debt                                | (595)          | 0 |
| Repayment of Senior Notes                                                          | 0              | (1,383) |
| Other                                                                              | (67)           | (48) |
| Net Cash Used in Financing Activities                                              | (426)          | (117) |
| (Decrease) Increase in Cash and Cash Equivalents                                   | (640)          | 272 |
| Cash and Cash Equivalents at Beginning of Period                                   | 1,180          | 1,028 |
| Cash and Cash Equivalents at End of Period                                         | $ 540          | $ 1,300 |

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|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The cash received (paid) on derivative instruments not designated or qualifying as hedging instruments as a result of settlement of derivative instruments during the period.
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| - Definition
Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.
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| - Definition
Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Includes effect from exchange rate changes.
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The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.
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Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects.
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Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.
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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.
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| - Definition
The increase (decrease) during the reporting period in the aggregate amount of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business.
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The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services.
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The increase (decrease) during the period in the amount due for taxes based on the reporting entity's earnings or attributable to the entity's income earning process (business presence) within a given jurisdiction.
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The increase (decrease) during the reporting period in the account that represents the temporary difference that results from Income or Loss that is recognized for accounting purposes but not for tax purposes and vice versa.
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Amount of increase (decrease) in operating assets after deduction of operating liabilities classified as other.
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Amount of increase (decrease) in operating liabilities classified as other.
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| - Definition
Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.
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Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.
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Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.
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Amount of income (expense) included in net income that results in no cash inflow (outflow), classified as other.
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| - Definition
The cash outflow associated with other payments to acquire businesses including deposit on pending acquisitions and preacquisition costs.
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| - Definition
Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity.
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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.
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The cash outflow associated with the purchase of or advances to an 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.
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| - Definition
The cash outflow to purchase long lived physical asset for use in the normal oil and gas operations and to purchase mineral interests in oil and gas properties not intended for resale.
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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.
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The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity.
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|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.
+ References
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|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer.
+ References
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| - Definition
Amount of cash inflow (outflow) from financing activities classified as other.
+ References
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| - Definition
The net cash inflow or cash outflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with either short term or long term maturity that is collateralized (backed by pledge, mortgage or other lien in the entity's assets).
+ References
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|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
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.
+ References
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|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.
+ References
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|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.
+ References
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| - Definition
The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.
+ References
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|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The cash outflow for the settlement of obligation drawn from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer.
+ References
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| - Definition
The cash outflow for a long-term debt where the holder has highest claim on the entity's asset in case of bankruptcy or liquidation during the period.
+ References
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| - Definition
Dry hole costs from oil and gas producing activities.
+ References
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|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.
+ References
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