| **Segment Information - Concentrations of Revenue (Details) - Product Concentration Risk - Sales Revenue** | 12 Months Ended |
|------------------------------------------------------------------------------------------------------------|-----------------|
||
| Percentage of Crude Oil Sales | BP                                                                         |            |   |   |
| **Concentration Risk [Line Items]**                                                                        |            |   |   |
| Concentration risk, percentage                                                                             | 31.00%          | 15.00% |   |
| Percentage of Crude Oil Sales | Shell                                                                      |            |   |   |
| **Concentration Risk [Line Items]**                                                                        |            |   |   |
| Concentration risk, percentage                                                                             | 22.00%          | 22.00% | 24.00% |
| Percentage of Crude Oil Sales | Glencore Energy UK Ltd                                                     |            |   |   |
| **Concentration Risk [Line Items]**                                                                        |            |   |   |
| Concentration risk, percentage                                                                             |            |   | 22.00% |
| Percentage of Total Oil, NGL & Gas Sales | BP                                                          |            |   |   |
| **Concentration Risk [Line Items]**                                                                        |            |   |   |
| Concentration risk, percentage                                                                             | 17.00%          | 10.00% |   |
| Percentage of Total Oil, NGL & Gas Sales | Shell                                                       |            |   |   |
| **Concentration Risk [Line Items]**                                                                        |            |   |   |
| Concentration risk, percentage                                                                             | 14.00%          | 13.00% | 13.00% |
| Percentage of Total Oil, NGL & Gas Sales | Glencore Energy UK Ltd                                      |            |   |   |
| **Concentration Risk [Line Items]**                                                                        |            |   |   |
| Concentration risk, percentage                                                                             |            |   | 12.00% |

| X                                                                                                                                                                                                                                                                                                                                                                                                                  |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - 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.
+ References
No definition available.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.
+ References
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| X                                                                                                                                        |
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| X                                                                                                                                         |
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| - Details**Name:**srt_MajorCustomersAxis=nbl_BritishPetroleumMember**Namespace Prefix:****Data Type:**na**Balance Type:****Period Type:** |
| X                                                                                                                                                                  |
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| X                                                                                                                                                              |
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| X                                                                                                                              |
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| X                                                                                                                                            |
|----------------------------------------------------------------------------------------------------------------------------------------------|
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| X                                                                                                                                            |
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