Nature of Operations, Basis of Presentation and Summary of Accounting Policies (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Nature of Operations, Basis of Presentation and Summary of Accounting Policies [Line Items]
Hess common stock conversion rate to the right to receive Chevron common stock	1.025
Contract liability	$ 0	$ 0	$ 24,000,000
Deferred revenue included in contract liability at prior year end, recognized as revenue during the current reporting year		24,000,000
Contract asset	$ 0	0
Initial revenue contract period	10 years
Minimum volume commitments percentage of nominations	80.00%
Goodwill	$ 360,000,000	360,000,000
Reserve for estimated remediation liabilities	35,000,000
Carbon credits purchased	88,000,000	75,000,000	$ 75,000,000
Carrying value of carbon credits	238,000,000	$ 150,000,000
Accrued liabilities
Nature of Operations, Basis of Presentation and Summary of Accounting Policies [Line Items]
Reserve for estimated remediation liabilities	14,000,000
Other liabilities and deferred credits
Nature of Operations, Basis of Presentation and Summary of Accounting Policies [Line Items]
Reserve for estimated remediation liabilities	$ 21,000,000
Midstream
Nature of Operations, Basis of Presentation and Summary of Accounting Policies [Line Items]
Additional revenue contract period	10 years
Goodwill	$ 360,000,000
Hess Midstream LP
Nature of Operations, Basis of Presentation and Summary of Accounting Policies [Line Items]
Percent interest in consolidated entity	38.00%