| **Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions** | 12 Months Ended |
|---------------------------------------------------------------------------------------|-----------------|
||
| **Revenues**                                                                          |            |   |   |
| Oil, Gas and NGL Sales                                                                | $ 4,060         | $ 3,389 | $ 3,093 |
| Income from Equity Method Investees and Other                                         | 196             | 102 | 90 |
| Total Revenues                                                                        | 4,256           | 3,491 | 3,183 |
| **Costs and Expenses**                                                                |            |   |   |
| Production Expense                                                                    | 1,141           | 1,100 | 996 |
| Exploration Expense                                                                   | 188             | 925 | 488 |
| Depreciation, Depletion and Amortization                                              | 2,053           | 2,454 | 2,131 |
| General and Administrative                                                            | 415             | 399 | 396 |
| Loss on Marcellus Shale Upstream Divestiture                                          | 2,379           | 0 | 0 |
| Asset Impairments                                                                     | 70              | 92 | 533 |
| Goodwill Impairment                                                                   | 0               | 0 | 779 |
| Other Operating (Income) Expense, Net                                                 | (188)           | (103) | 332 |
| Total Operating Expenses                                                              | 6,058           | 4,867 | 5,655 |
| Operating Loss                                                                        | (1,802)         | (1,376) | (2,472) |
| **Other Expense (Income)**                                                            |            |   |   |
| (Gain) Loss on Commodity Derivative Instruments                                       | (63)            | 139 | (501) |
| Loss (Gain) on Extinguishment of Debt                                                 | 98              | (80) | 0 |
| Interest, Net of Amount Capitalized                                                   | 354             | 328 | 263 |
| Other Non-Operating Expense (Income), Net                                             | 0               | 9 | (15) |
| Total Other Expense (Income)                                                          | 389             | 396 | (253) |
| Loss Before Income Taxes                                                              | (2,191)         | (1,772) | (2,219) |
| Income Tax (Benefit) Provision                                                        | (1,141)         | (787) | 222 |
| Net Loss Including Noncontrolling Interests                                           | (1,050)         | (985) | (2,441) |
| Less: Net Income Attributable to Noncontrolling Interests                             | 68              | 13 | 0 |
| Net Loss Attributable to Noble Energy                                                 | $ (1,118)       | $ (998) | $ (2,441) |
| **Net Loss Attributable to Noble Energy per Share of Common Stock**                   |            |   |   |
| Basic and Diluted (in dollars per share)                                              | $ (2.38)        | $ (2.32) | $ (6.07) |
| **Weighted Average Number of Shares Outstanding**                                     |            |   |   |
| Basic and Diluted (in shares)                                                         | 469             | 430 | 402 |

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| - Definition
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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| - Definition
Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.
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| - Definition
The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements.  Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period.  Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.
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| - Definition
Exploration expenses (including prospecting) related to oil and gas producing entities and would be included in operating expenses of that entity. Costs incurred in identifying areas that may warrant examination and in examining specific areas that are considered to have prospects of containing oil and gas reserves, including costs of drilling exploratory wells and exploratory-type stratigraphic test wells. Exploration costs may be incurred both before acquiring the related property (sometimes referred to in part as prospecting costs) and after acquiring the property. Principal types of exploration costs, which include depreciation and applicable operating costs of support equipment and facilities and other costs of exploration activities, are: (i) Costs of topographical, geographical and geophysical studies, rights of access to properties to conduct those studies, and salaries and other expenses of geologists, geophysical crews, and others conducting those studies. Collectively, these are sometimes referred to as geological and geophysical or "G&G" costs. (ii) Costs of carrying and retaining undeveloped properties, such as delay rentals, ad valorem taxes on properties, legal costs for title defense, and the maintenance of land and lease records. (iii) Dry hole contributions and bottom hole contributions. (iv) Costs of drilling and equipping exploratory wells. (v) Costs of drilling exploratory-type stratigraphic test wells.
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| - Definition
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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| - Definition
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 aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line.
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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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The expense recorded to reduce the value of oil and gas assets consisting of proved properties and unproved properties as the estimate of future successful production from these properties is reduced.
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| - Definition
Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.
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| - Definition
This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.
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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.
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Amount of the cost of borrowed funds accounted for as interest expense.
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| - Definition
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.
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Amount of Net Income (Loss) attributable to noncontrolling interest.
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The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).
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| - Definition
Revenue from the sale of oil and gas during the period.
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Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense.
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The net result for the period of deducting operating expenses from operating revenues.
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Amount of income (expense) related to nonoperating activities, classified as other.
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| - Definition
The net amount of other operating income and expenses, the components of which are not separately disclosed on the income statement, from items that are associated with the entity's normal revenue producing operations.
+ References
No definition available.
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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
Production (lifting) costs from oil and gas producing activities, including but not limited to lease operating expense, production and ad valorem taxes, and transportation expense.
+ References
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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).
+ References
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| - References
No definition available.
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|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS).
+ References
No definition available.
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