Stock-Based Compensation	3 Months Ended
Mar. 31, 2022
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock-Based Compensation	10. Stock-Based Compensation The Company’s stock-based compensation plan, known as the National Oilwell Varco, Inc. 2018 Long-Term Incentive Plan (the “2018 Plan”), was approved by shareholders on May 11, 2018 and amended and restated on May 20, 2020. The 2018 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 2018 Plan is 42.7 million. The 2018 Plan is also subject to a fungible ratio concept, such that the issuance of stock options and stock appreciation rights reduces the number of available shares under the 2018 Plan on a 1-for-1 basis, and the issuance of other awards reduces the number of available shares under the 2018 Plan on a 2.5-for-1 basis. At March 31, 2022, approximately 4.1 million shares remained available for future grants under the 2018 Plan. The Company also has outstanding awards under its other stock-based compensation plan known as the National Oilwell Varco, Inc. Long-Term Incentive Plan (the “Plan”), however the Company is no longer granting new awards under the Plan. On February 15, 2022, under the 2018 Plan, the Company granted 1,492,020 stock options with a fair value of $6.28 per option and an exercise price of $16.73 per share; 2,877,894 restricted stock units with a fair value of $16.73 per share; and performance share awards (PSAs) to senior management employees with potential payouts varying from zero to 1,188,884 shares. The stock options vest over a three-year period from the grant date. The restricted stock units vest in three equal annual installments commencing on the first anniversary of the grant date. The 2022 PSAs can be earned based on performance against two established goals over a three-year period: 85% with a TSR (total shareholder return) goal and 15% with an internal NVA (“NOV Value Added”, a return on capital metric) goal. TSR performance is determined by comparing the Company’s TSR with the TSR of the members of the Philadelphia Stock Exchange’s Oil Services Sector Index (OSX) for the three-year performance period. The TSR portion of the performance share awards is subject to a vesting cap equal to 100% of Target Level if the Company’s absolute TSR is negative, regardless of relative TSR results. Conversely, if the Company’s absolute TSR is greater than 15% annualized over the three-year performance period the payout amount shall not be less than 50% of Target Level, regardless of relative TSR results. The NVA goal is based on the Company’s improvement in NVA from the beginning of the performance period until the end of the performance period. NVA is calculated as an amount equal to the Company’s (a) gross cash earnings less (b) average gross operating assets times an amount equal to a required return on assets, with certain adjustments. Total expense for all stock-based compensation arrangements was $16 million and $20 million for the three months ended March 31, 2022 and 2021, respectively. There was no income tax benefit recognized in the Consolidated Statements of Income (Loss) for stock-based compensation arrangements under the 2018 Plan for both the three months ended March 31, 2022 and 2021.

Stock-Based Compensation

3 Months Ended

Mar. 31, 2022

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

10.

Stock-Based Compensation

The Company’s stock-based compensation plan, known as the National Oilwell Varco, Inc. 2018 Long-Term Incentive Plan (the “2018 Plan”), was approved by shareholders on May 11, 2018 and amended and restated on May 20, 2020. The 2018 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 2018 Plan is 42.7 million. The 2018 Plan is also subject to a fungible ratio concept, such that the issuance of stock options and stock appreciation rights reduces the number of available shares under the 2018 Plan on a 1-for-1 basis, and the issuance of other awards reduces the number of available shares under the 2018 Plan on a 2.5-for-1 basis. At March 31, 2022, approximately 4.1 million shares remained available for future grants under the 2018 Plan. The Company also has outstanding awards under its other stock-based compensation plan known as the National Oilwell Varco, Inc. Long-Term Incentive Plan (the “Plan”), however the Company is no longer granting new awards under the Plan.

On February 15, 2022, under the 2018 Plan, the Company granted 1,492,020 stock options with a fair value of $6.28 per option and an exercise price of $16.73 per share; 2,877,894 restricted stock units with a fair value of $16.73 per share; and performance share awards (PSAs) to senior management employees with potential payouts varying from zero to 1,188,884 shares. The stock options vest over a three-year period from the grant date. The restricted stock units vest in three equal annual installments commencing on the first anniversary of the grant date. The 2022 PSAs can be earned based on performance against two established goals over a three-year period: 85% with a TSR (total shareholder return) goal and 15% with an internal NVA (“NOV Value Added”, a return on capital metric) goal. TSR performance is determined by comparing the Company’s TSR with the TSR of the members of the Philadelphia Stock Exchange’s Oil Services Sector Index (OSX) for the three-year performance period. The TSR portion of the performance share awards is subject to a vesting cap equal to 100% of Target Level if the Company’s absolute TSR is negative, regardless of relative TSR results. Conversely, if the Company’s absolute TSR is greater than 15% annualized over the three-year performance period the payout amount shall not be less than 50% of Target Level, regardless of relative TSR results. The NVA goal is based on the Company’s improvement in NVA from the beginning of the performance period until the end of the performance period. NVA is calculated as an amount equal to the Company’s (a) gross cash earnings less (b) average gross operating assets times an amount equal to a required return on assets, with certain adjustments.

Total expense for all stock-based compensation arrangements was $16 million and $20 million for the three months ended March 31, 2022 and 2021, respectively.

There was no income tax benefit recognized in the Consolidated Statements of Income (Loss) for stock-based compensation arrangements under the 2018 Plan for both the three months ended March 31, 2022 and 2021.