CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenues
Revenues	$ 1,346.1	$ 1,273.2	$ 1,203.8
Type of Revenue [Extensible List]	us-gaap:ServiceMember	us-gaap:ServiceMember	us-gaap:ServiceMember
Other income	$ 2.5	$ 2.0	$ 0.0
Total revenues	1,348.6	1,275.2	1,203.8
Costs and expenses
Operating and maintenance expenses (exclusive of depreciation shown separately below)	313.0	279.6	288.3
Depreciation expense	192.5	181.3	165.6
General and administrative expenses	26.2	23.1	22.7
Total operating costs and expenses	531.7	484.0	476.6
Income from operations	816.9	791.2	727.2
Income from equity investments	7.7	5.3	10.6
Interest expense, net	179.0	149.3	105.4
Income before income tax expense	645.6	647.2	632.4
Income tax expense	37.9	26.6	14.6
Net income	607.7	620.6	617.8
Less: Net income attributable to noncontrolling interest	489.1	536.7	571.4
Net income attributable to Hess Midstream LP	118.6	83.9	46.4
Affiliate services
Revenues
Revenues	1,338.1	1,273.2	1,203.8
Third-party services
Revenues
Revenues	$ 8.0	$ 0.0	$ 0.0
Class A Shares
Net income attributable to Hess Midstream LP per Class A share:
Net income attributable to Hess Midstream LP per Class A share, Basic	$ 2.11	$ 2.03	$ 1.81
Net income attributable to Hess Midstream LP per Class A share, Diluted	$ 2.08	$ 2.01	$ 1.76
Weighted average Class A shares outstanding
Weighted average Class A shares outstanding, Basic	56.2	41.3	25.6
Weighted average Class A shares outstanding, Diluted	56.3	41.4	25.7