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Income Taxes - Difference Between Effective Tax Rate (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Income tax provision at federal statutory rate	$ 29	$ 29	$ 3
Foreign tax rate differential	1	1	2
State income tax provision (benefit), net of federal benefit	4	4	(1)
Nondeductible expenses	2	2	0
Currency translation losses	0	2	0
Capital loss carryforward	0	(2)	0
Change in valuation allowance	(148)	(28)	2
Other	2	2	1
Income tax provision (benefit)	$ (110)	$ 10	$ 7
Effective tax rate	79.70%	7.20%	54.80%

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