Income Taxes - Schedule of Provision for Income Taxes on Income from Continuing Operations (Detail) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Current:
Federal		$ 0	$ 0	$ 8
Foreign		211	445	473
State and local		0	0	1
Current provision for income taxes, total		211	445	482
Deferred:
Federal		0	(3)	6
Foreign		(22)	222	141
Deferred provision for income taxes, total		(22)	219	147
Provision for income taxes	$ (36)	$ 189	$ 664	$ 629