Members' Equity - Computation and Distribution Activity (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Distributed earnings allocated to:
Total distributed earnings	$ 55.1	$ 46.8	$ 166.3	$ 140.9
Undistributed income (loss) allocated to:
Total undistributed loss, basic	25.7	(44.9)	35.0	(173.3)
Total undistributed loss, diluted	25.7	(44.9)	35.0	(173.3)
Net income (loss) attributable to ENLC allocated to:
Total net income (loss), basic	80.8	1.9	201.3	(32.4)
Total net income (loss), diluted	$ 80.8	$ 1.9	$ 201.3	$ (32.4)
Net income (loss) attributable to ENLC per unit:
Basic (in dollars per share)	$ 0.17	$ 0	$ 0.42	$ (0.07)
Diluted (in dollars per share)	$ 0.17	$ 0	$ 0.41	$ (0.07)
Unvested restricted units
Distributed earnings allocated to:
Total distributed earnings	$ 1.4	$ 1.0	$ 3.9	$ 3.2
Undistributed income (loss) allocated to:
Total undistributed loss, basic	0.6	(1.0)	0.8	(4.0)
Total undistributed loss, diluted	0.6	(1.0)	0.8	(4.0)
Net income (loss) attributable to ENLC allocated to:
Total net income (loss), basic	2.0	0.0	4.7	(0.8)
Total net income (loss), diluted	2.0	0.0	4.7	(0.8)
Common units
Distributed earnings allocated to:
Total distributed earnings	53.7	45.8	162.4	137.7
Undistributed income (loss) allocated to:
Total undistributed loss, basic	25.1	(43.9)	34.2	(169.3)
Total undistributed loss, diluted	25.1	(43.9)	34.2	(169.3)
Net income (loss) attributable to ENLC allocated to:
Total net income (loss), basic	78.8	1.9	196.6	(31.6)
Total net income (loss), diluted	$ 78.8	$ 1.9	$ 196.6	$ (31.6)