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v3.25.2

Stock-Based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
May 20, 2025 | Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |  |
Stock-based compensation expense |  | $ 17 | $ 17 | $ 33 | $ 36
Income tax expense/(benefit) recognized |  | $ (3) | $ (1) | $ 6 | $ 3
Restricted Stock and Restricted Stock Units [Member] |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |  |
Shares granted | 127,592 |  |  |  |
Restricted stock granted fair value | $ 12.54 |  |  |  |
NOV Plan [Member] |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |  |
Authorized shares under stock based compensation |  | 70,900,000 |  | 70,900,000 |
Remaining shares available for future grants under the Plan |  | 17,100,000 |  | 17,100,000 |

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