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Income Taxes - Reconciliation of United States Federal Statutory Tax Rate to Effective Tax Rate on Income Before Provision for Income Taxes (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Tax Disclosure [Abstract]
U.S. statutory tax rate	21.00%	21.00%	21.00%
State and local taxes, net of federal tax benefit	3.70%	2.50%	0.80%
Foreign operations	(0.30%)	0.40%	(0.20%)
Release of UTP reserves	(0.40%)	(5.70%)	0.00%
Other	(0.30%)	(1.30%)	0.30%
ETR	23.70%	16.90%	21.90%
Income tax paid	$ 613	$ 344	$ 488

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed attributable to a litigation settlement.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to statutory income tax expense (benefit) outside of the country of domicile.

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Amount, before refund, of cash paid to foreign, federal, state, and local jurisdictions as income tax.

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