CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Revenues
Revenues	$ 1,491.9	$ 1,346.1	$ 1,273.2
Type of Revenue [Extensible List]	us-gaap:ServiceMember	us-gaap:ServiceMember	us-gaap:ServiceMember
Other income	$ 3.6	$ 2.5	$ 2.0
Total revenues	1,495.5	1,348.6	1,275.2
Costs and expenses
Operating and maintenance expenses (exclusive of depreciation shown separately below)	347.3	313.0	279.6
Depreciation expense	203.1	192.5	181.3
General and administrative expenses	26.1	26.2	23.1
Total operating costs and expenses	576.5	531.7	484.0
Income from operations	919.0	816.9	791.2
Income from equity investments	14.0	7.7	5.3
Interest expense, net	202.2	179.0	149.3
Income before income tax expense	730.8	645.6	647.2
Income tax expense	71.8	37.9	26.6
Net income	659.0	607.7	620.6
Less: Net income attributable to noncontrolling interest	435.9	489.1	536.7
Net income attributable to Hess Midstream LP	223.1	118.6	83.9
Affiliate services
Revenues
Revenues	1,467.8	1,338.1	1,273.2
Third-party services
Revenues
Revenues	$ 24.1	$ 8.0	$ 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	$ 2.51	$ 2.11	$ 2.03
Net income attributable to Hess Midstream LP per Class A share, Diluted	$ 2.49	$ 2.08	$ 2.01
Weighted average Class A shares outstanding
Weighted average Class A shares outstanding, Basic	89	56.2	41.3
Weighted average Class A shares outstanding, Diluted	89	56.3	41.4