Related Party Transactions (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Related Party Transaction [Line Items]
Accrued gas, NGLs, condensate, and crude oil purchases	$ 121.9		$ 121.9		$ 126.9
Midstream services revenue	1,768.2	$ 2,643.0	5,042.6	$ 7,498.0
Cost of sales	(1,244.7)	(2,131.1)	(3,535.6)	(6,030.7)
Midstream services revenue
Related Party Transaction [Line Items]
Midstream services revenue	280.1	258.6	838.9	699.2
Product sales—related parties | Cedar Cove Joint Venture
Related Party Transaction [Line Items]
Accrued gas, NGLs, condensate, and crude oil purchases	0.5		0.5		$ 2.5
Cost of sales	(1.8)	(5.6)	(5.8)	(25.3)
Product sales—related parties | Midstream services revenue | Cedar Cove Joint Venture
Related Party Transaction [Line Items]
Midstream services revenue	$ 0.7	$ 1.4	$ 2.0	$ 1.4