Income Taxes - Composition of Net Deferred Tax Asset by Jurisdiction (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Line Items]
Deferred tax assets	$ 3,240	$ 2,958
Valuation allowance	(2,595)	$ (2,333)	$ (2,062)	$ (2,127)
Deferred tax liabilities	(498)
Total	147
Domestic [Member]
Income Tax Disclosure [Line Items]
Deferred tax assets	1,050
Valuation allowance	(988)
Deferred tax liabilities	(62)
Total	0
Foreign [Member]
Income Tax Disclosure [Line Items]
Deferred tax assets	2,190
Valuation allowance	(1,607)
Deferred tax liabilities	(436)
Total	$ 147