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Hess Midstream LP (Detail) shares in Millions, $ in Millions	1 Months Ended	3 Months Ended
	Mar. 31, 2021 USD ($) shares	Mar. 31, 2022 USD ($) ft³	Mar. 31, 2021 USD ($)	Dec. 31, 2021 USD ($)
Variable Interest Entity [Line Items]
Number of Class A shares of subsidiary public offering (in shares) \| shares	6.9
Proceeds from sale of Class A shares of Hess Midstream LP	$ 70	$ 0	$ 70
Sale of Class A shares of Hess Midstream LP			97
Gas processing capacity of LM4 \| ft³		200,000,000
Equity Method Investment, Ownership Percentage		50.00%
Joint venture percentage owned by Targa Resources Corp		50.00%
Processing fees incurred		$ 5	7
Liabilities		12,750		$ 13,489
Cash and cash equivalents		1,370		2,713
Property, plant and equipment, net		14,489		14,182
Capital in Excess of Par
Variable Interest Entity [Line Items]
Sale of Class A shares of Hess Midstream LP	56		56
Noncontrolling Interests
Variable Interest Entity [Line Items]
Sale of Class A shares of Hess Midstream LP	41		$ 41
Noncontrolling Interests \| Change In Ownership
Variable Interest Entity [Line Items]
Sale of Class A shares of Hess Midstream LP	14
Noncontrolling Interests \| Recognition Of Deferred Tax Asset
Variable Interest Entity [Line Items]
Sale of Class A shares of Hess Midstream LP	$ 27
Variable Interest Entity \| Hess Midstream LP
Variable Interest Entity [Line Items]
Cash and cash equivalents		3		2
Property, plant and equipment, net		3,118		3,125
Variable Interest Entity \| Hess Midstream LP \| Nonrecourse
Variable Interest Entity [Line Items]
Liabilities		2,668		2,694
Variable Interest Entity \| Hess Midstream LP \| Little Missouri Four
Variable Interest Entity [Line Items]
Equity method investment in LM4		$ 97		$ 102