Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Tax Examination [Line Items]
Gross deferred tax asset related to net operating loss carryforwards	$ 4,432,000,000	$ 4,406,000,000
Gross deferred tax asset related to foreign net operating loss carryforwards	129,000,000
Gross deferred tax asset related to net U.S. federal operating loss carryforwards	3,796,000,000
Gross deferred tax asset related to net operating loss carryforwards for various U.S. states	507,000,000
U.S. state tax credit carryforwards	27,000,000
Other business credit carryforwards	82,000,000
Valuation allowance against net deferred tax assets	3,719,000,000	3,652,000,000
Release of valuation allowance established against a portion of the net deferred tax assets in Malaysia, related to the Marginal Field tax ring-fence	(67,000,000)	6,000,000	$ (180,000,000)
Unrecognized tax benefits that would impact effective income tax rate	0
Unrecognized tax benefits decrease reasonably possible	0
Accrued interest and penalties	0	$ 0
Midstream
Income Tax Examination [Line Items]
Gross deferred tax asset related to net U.S. federal operating loss carryforwards	57,000,000
Gross deferred tax asset related to net operating loss carryforwards for various U.S. states	$ 12,000,000