Asset Retirement Obligations - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($) u_hesLease
Asset Retirement Obligations [Line Items]
Liabilities incurred	$ 126	$ 229
Fair value of sinking fund deposits legally restricted for purposes of settling asset retirement obligations	$ 261	$ 233
West Delta 79/86 Field
Asset Retirement Obligations [Line Items]
Number of offshore Gulf of Mexico leases abandoned | u_hesLease		7
Liabilities incurred		$ 147