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Stock-Based Compensation
 9 Months Ended
Sep. 30, 2025
Share-Based Payment Arrangement [Abstract]  
Stock-Based Compensation

10. Stock-Based Compensation

The Company’s stock-based compensation plan, known as the NOV Inc. Long-Term Incentive Plan (the “NOV Plan”), was approved by shareholders on May 11, 2018 and was amended and restated on May 24, 2022 and May 20, 2025. The NOV Plan provides for the granting of stock options, restricted stock, restricted stock units, performance awards, phantom shares, stock appreciation rights, stock payments and substitute awards. The number of shares authorized under the NOV Plan is 70.9 million. At September 30, 2025, approximately 17.1 million shares remained available for future grants under the NOV Plan. The Company also has outstanding awards under its former stock-based compensation plan known as the National Oilwell Varco, Inc. Long-Term Incentive Plan (the “Former Plan”); however, the Company is no longer granting new awards under the Former Plan.

Total expense for all stock-based compensation arrangements was $17 million and $50 million for the three and nine months ended September 30, 2025, respectively, and $17 million and $53 million for the three and nine months ended September 30, 2024, respectively.

The total income tax expense (benefit) recognized in the Consolidated Statements of Income for stock-based compensation arrangements was $(1) million and $5 million for the three and nine months ended September 30, 2025, respectively, and $(2) million and $1 million for the three and nine months ended September 30, 2024, respectively.