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Stock-Based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions				3 Months Ended		6 Months Ended
	May 30, 2024	May 15, 2024	May 13, 2024	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Restricted Stock and Restricted Stock Units [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Shares granted	13,639	85,950	2,667
Restricted stock granted fair value	$ 18.33	$ 18.85	$ 18.76
2018 Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock-based compensation expense				$ 17	$ 17	$ 36	$ 32
NOV Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Authorized shares under stock based compensation				55,700,000		55,700,000
Remaining shares available for future grants under the Plan				7,700,000		7,700,000
Income tax expense/(benefit) recognized				$ (1)	$ 0	$ 3	$ 0

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