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Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Income Tax Disclosure [Abstract]
Provision for income taxes	$ 515	$ 424	$ 1,541	$ 1,419
Effective tax rate	23.90%	25.00%	23.90%	24.70%
Provision for tax benefits related to settlement of employee awards			$ 45	$ 93
Gross unrecognized tax benefits, excluding accrued interest and penalties	$ 515		515		$ 504
Unrecognized tax benefits, accrued interest and penalties	143		143		115
Unrecognized tax benefits that would impact effective tax rate	$ 332		$ 332		$ 295

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

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Amount of tax benefit for recognition of expense of award under share-based payment arrangement.

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

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