Income Taxes - Components of Income Tax Provision (Benefit) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Tax Disclosure [Abstract]
United States - Federal, Current income tax expense (benefit)	$ 0	$ 0	$ 0
United States - Federal, Deferred income taxes and other accruals expense (benefit)	59	31	22
United States - State, Current & Deferred income taxes and other accruals expense (benefit)	13	7	5
United States - Current & Deferred income taxes, and other accruals expense (benefit)	72	38	27
Foreign - Current income tax expense (benefit)	934	537	789
Foreign - Deferred income taxes and other accruals expense (benefit)	196	158	283
Foreign - Current & Deferred income taxes and other accruals expense (benefit)	1,130	695	1,072
Provision (Benefit) For Income Taxes	$ 1,202	$ 733	$ 1,099