| **Commitments and Contingencies - Narrative (Details) - USD ($) $ in Millions** | 3 Months Ended | 12 Months Ended | 51 Months Ended |
|---------------------------------------------------------------------------------|----------------|-----------------|-----------------|
||
| Consent Decree                                                                  |           |            |            |
| **Other Commitments [Line Items]**                                              |           |            |            |
| Consent decree                                                                  |           | $ 5             | $ 84            |
| Mitigation projects                                                             | $ 5            |            |            |
| Supplemental environmental projects                                             | $ 4            |            |            |
| Consent Decree - Corrective Actions At Certain Tank Systems                     |           |            |            |
| **Other Commitments [Line Items]**                                              |           |            |            |
| Consent decree                                                                  |           |            | $ 78            |

| X                                                                                                                                                                                                                            |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Consent Decree total
+ References
No definition available.
+ Details**Name:**nbl_ConsentDecreetotal**Namespace Prefix:**nbl_**Data Type:**xbrli:monetaryItemType**Balance Type:**credit**Period Type:**duration |
| X                                                                                                                                                                                                                           |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Mitigation projects
+ References
No definition available.
+ Details**Name:**nbl_Mitigationprojects**Namespace Prefix:**nbl_**Data Type:**xbrli:monetaryItemType**Balance Type:**credit**Period Type:**duration |
| X                                                                                                                                                                                                                                                          |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Supplemental environmental projects
+ References
No definition available.
+ Details**Name:**nbl_Supplementalenvironmentalprojects**Namespace Prefix:**nbl_**Data Type:**xbrli:monetaryItemType**Balance Type:**credit**Period Type:**duration |
| 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.
+ Details**Name:**us-gaap_OtherCommitmentsLineItems**Namespace Prefix:**us-gaap_**Data Type:**xbrli:stringItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                            |
|----------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_OtherCommitmentsAxis=nbl_ConsentDecreeMember**Namespace Prefix:****Data Type:**na**Balance Type:****Period Type:** |
| X                                                                                                                                                                                 |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
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