Nature of Operations, Basis of Presentation and Summary of Accounting Policies (Detail) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2021	Dec. 31, 2020
Nature of Operations, Basis of Presentation and Summary of Accounting Policies [Line Items]
Goodwill	$ 360	$ 360	$ 360
Reserve for estimated remediation liabilities	$ 60	$ 60
Exploration and Production | Minimum
Nature of Operations, Basis of Presentation and Summary of Accounting Policies [Line Items]
Long-term contracts with customers remaining duration	1 year	1 year
Exploration and Production | Maximum
Nature of Operations, Basis of Presentation and Summary of Accounting Policies [Line Items]
Long-term contracts with customers remaining duration	11 years	11 years
Midstream
Nature of Operations, Basis of Presentation and Summary of Accounting Policies [Line Items]
Initial revenue contract period		10 years
Additional revenue contract period		10 years
Goodwill	$ 360	$ 360
Midstream | Water Handling Services
Nature of Operations, Basis of Presentation and Summary of Accounting Policies [Line Items]
Initial revenue contract period		14 years
Additional revenue contract period		10 years
Hess Midstream LP
Nature of Operations, Basis of Presentation and Summary of Accounting Policies [Line Items]
Percent interest in consolidated entity	43.50%