Income Taxes - Schedule of Unrecognized Tax Benefits (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Beginning Balance	$ 10	$ 9	$ 6
Increases due to tax positions related to prior year	0	0	2
Increases due to tax positions related to current year	0	1	1
Ending Balance	$ 10	$ 10	$ 9