XML 44 R30.htm IDEA: XBRL DOCUMENT
v3.22.2

Leases (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2022
Leases [Abstract] |
Schedule of Components of Leases | Components of leases are as follows (in millions):
|  | June 30, |  |  | December 31, |
|  | 2022 |  |  | 2021 |
Current portion of lease liabilities: |  |  |  |  |  |
Operating |  | $ | 71 |  |  | $ | 76 |
Financing |  |  | 21 |  |  |  | 23 |
Total |  | $ | 92 |  |  | $ | 99 |
|  | June 30, |  |  | December 31, |
|  | 2022 |  |  | 2021 |
Long-term portion of lease liabilities: |  |  |  |  |  |
Operating |  | $ | 348 |  |  | $ | 357 |
Financing |  |  | 215 |  |  | $ | 219 |
Total |  | $ | 563 |  |  | $ | 576 |

X
- Definition Tabular disclosure of components of leases. + References No definition available. + Details
Name: | nov_ComponentsOfLeasesTableTextBlock
Namespace Prefix: | nov_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_LeasesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration