Income Taxes - Provision for (Benefit from) Income Taxes (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Current
Federal	$ 0	$ 0	$ 0
State	45	137	35
Foreign	43	61	12
Current income tax provision	88	198	47
Deferred
Federal	77	622	309
State	47	(22)	78
Foreign	67	82	(9)
Deferred income tax provision	191	682	378
Provision for income taxes	$ 279	$ 880	$ 425