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Stock-Based Compensation - Additional Information (Detail) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock-based compensation expense	$ 17	$ 17	$ 50	$ 53
Income tax expense/(benefit) recognized	$ (1)	$ (2)	$ 5	$ 1
NOV Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Authorized shares under stock based compensation	70.9		70.9
Remaining shares available for future grants under the Plan	17.1		17.1

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