Pension and Other Postretirement Benefits - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2025
Non-U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Minimum required cash contribution to pension plans	$ 2	$ 4	$ 14	$ 10
Forecast [Member] | United States [Member]
Defined Benefit Plan Disclosure [Line Items]
Minimum required cash contribution to pension plans					$ 21