Income Taxes - Schedule of Expiration Periods of Deferred Tax Assets (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Tax Credit Carryforward [Line Items]
Tax loss carryforwards	$ 2,042
Tax credit carryforwards	24	$ 23
Other	1,174
Valuation allowance	(2,595)	(2,333)	$ (2,062)	$ (2,127)
Total	645	$ 625
Expires Within 10 Years [Member]
Tax Credit Carryforward [Line Items]
Tax loss carryforwards	203
Tax credit carryforwards	24
Other	(1)
Valuation allowance	(226)
Total	0
Expires Within 11-20 Years [Member]
Tax Credit Carryforward [Line Items]
Tax loss carryforwards	333
Valuation allowance	(333)
Total	0
No Expiration [Member]
Tax Credit Carryforward [Line Items]
Tax loss carryforwards	1,471
Other	154
Valuation allowance	(1,613)
Total	12
Other [Member]
Tax Credit Carryforward [Line Items]
Tax loss carryforwards	35
Other	1,021
Valuation allowance	(423)
Total	$ 633