Document and Entity Information - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Jan. 31, 2020	Jun. 28, 2019
Cover [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Trading Symbol	HES
Entity Registrant Name	Hess Corporation
Security Exchange Name	NYSE
Title of 12(b) Security	Common Stock
Entity Interactive Data Current	Yes
Entity File Number	1-1204
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	13-4921002
Entity Address, Address Line One	1185 AVENUE OF THE AMERICAS
Entity Address, City or Town	NEW YORK
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10036
City Area Code	212
Local Phone Number	997-8500
Document Annual Report	true
Document Transition Report	false
Entity Central Index Key	0000004447
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		305,214,587
Entity Public Float			$ 16,996
Documents Incorporated by Reference	Part III is incorporated by reference from the Proxy Statement for the 2020 annual meeting of stockholders.