CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenues
Affiliate services	$ 1,273.2	$ 1,203.8	$ 1,091.6
Type of Revenue [Extensible List]	us-gaap:ServiceMember	us-gaap:ServiceMember	us-gaap:ServiceMember
Other income	$ 2.0		$ 0.3
Total revenues	1,275.2	$ 1,203.8	1,091.9
Costs and expenses
Operating and maintenance expenses (exclusive of depreciation shown separately below)	279.6	288.3	337.4
Depreciation expense	181.3	165.6	156.9
General and administrative expenses	23.1	22.7	21.1
Total operating costs and expenses	484.0	476.6	515.4
Income from operations	791.2	727.2	576.5
Income from equity investments	5.3	10.6	10.3
Interest expense, net	149.3	105.4	94.7
Gain on sale of property, plant and equipment			0.1
Income before income tax expense	647.2	632.4	492.2
Income tax expense	26.6	14.6	7.3
Net income	620.6	617.8	484.9
Less: Net income attributable to noncontrolling interest	536.7	571.4	460.9
Net income attributable to Hess Midstream LP	$ 83.9	$ 46.4	$ 24.0
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	$ 2.03	$ 1.81	$ 1.33
Net income attributable to Hess Midstream LP per Class A share, Diluted	$ 2.01	$ 1.76	$ 1.31
Weighted average Class A shares outstanding
Weighted average Class A shares outstanding, Basic	41.3	25.6	18.0
Weighted average Class A shares outstanding, Diluted	41.4	25.7	18.1