Income Taxes - Schedule of Income Taxes (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Income Tax Disclosure [Abstract]
Income (loss) before income taxes	$ 167	$ 184	$ 996	$ (49)
Estimated annualized effective tax rate			8.00%	133.40%
Income tax expense (benefit)			$ 80	$ (65)
(Favorable) unfavorable tax impact related to losses in jurisdictions with no tax benefit			(1)	197
Discrete tax benefit			0	(3)
Provision for income taxes	$ (51)	$ 86	$ 79	$ 129