Income Taxes - Schedule of Components of Income Before Income Tax (Detail) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income before income taxes:
United States	$ 438	$ 380	$ 332
International	13	13	6
Income before income taxes	$ 451	$ 393	$ 338

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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+ Details