| **Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions** | 12 Months Ended |
|------------------------------------------------------------------------------------|-----------------|
||
| **Statement of Comprehensive Income [Abstract]**                                   |            |   |   |
| Net Loss Including Noncontrolling Interests                                        | $ (1,050)       | $ (985) | $ (2,441) |
| **Other Items of Comprehensive Loss**                                              |            |   |   |
| Net Change in Mutual Fund Investment                                               | 0               | 0 | (11) |
| Less Tax Expense                                                                   | 0               | 0 | 4 |
| Net Change in Pension and Other                                                    | 3               | 3 | 99 |
| Less Tax Benefit                                                                   | (1)             | (1) | (35) |
| Other Comprehensive Income                                                         | 2               | 2 | 57 |
| Comprehensive Loss Including Noncontrolling Interests                              | (1,048)         | (983) | (2,384) |
| Less: Comprehensive Income Attributable to Noncontrolling Interests                | 68              | 13 | 0 |
| Comprehensive Loss Attributable to Noble Energy                                    | $ (1,116)       | $ (996) | $ (2,384) |

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|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.
+ References
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| - Definition
Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income (loss) and other comprehensive income (loss), attributable to noncontrolling interests. Excludes changes in equity resulting from investments by owners and distributions to owners.
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| - Definition
Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners.
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| - Definition
Amount after tax of other comprehensive income (loss) attributable to parent entity.
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| - Definition
Amount, before tax, after reclassification adjustment, of (increase) decrease in accumulated other comprehensive income for defined benefit plan.
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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount before tax of reclassification adjustment from accumulated other comprehensive income of accumulated gain (loss) realized from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's deferred hedging gain (loss).
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| - Definition
Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income of accumulated gain (loss) realized from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's deferred hedging gain (loss).
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| - Definition
Amount of tax expense (benefit) allocated to other comprehensive income (loss).
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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.
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