Members' Equity - Computation and Distribution Activity (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Distributed earnings allocated to:
Total distributed earnings	$ 58.6	$ 55.1	$ 176.9	$ 166.3
Undistributed loss allocated to:
Total undistributed loss, basic	(29.1)	25.7	(34.9)	35.0
Total undistributed loss, diluted	(29.1)	25.7	(34.9)	35.0
Net income attributable to ENLC allocated to:
Total net income attributable to ENLC, basic	29.5	80.8	142.0	201.3
Total net income attributable to ENLC, diluted	$ 29.5	$ 80.8	$ 142.0	$ 201.3
Net income attributable to ENLC per unit:
Basic (in dollars per share)	$ 0.06	$ 0.17	$ 0.31	$ 0.42
Diluted (in dollars per share)	$ 0.06	$ 0.17	$ 0.30	$ 0.41
Unvested unit-based awards
Distributed earnings allocated to:
Total distributed earnings	$ 1.0	$ 1.4	$ 2.9	$ 3.9
Undistributed loss allocated to:
Total undistributed loss, basic	(0.5)	0.6	(0.6)	0.8
Total undistributed loss, diluted	(0.5)	0.6	(0.6)	0.8
Net income attributable to ENLC allocated to:
Total net income attributable to ENLC, basic	0.5	2.0	2.3	4.7
Total net income attributable to ENLC, diluted	0.5	2.0	2.3	4.7
Common units
Distributed earnings allocated to:
Total distributed earnings	57.6	53.7	174.0	162.4
Undistributed loss allocated to:
Total undistributed loss, basic	(28.6)	25.1	(34.3)	34.2
Total undistributed loss, diluted	(28.6)	25.1	(34.3)	34.2
Net income attributable to ENLC allocated to:
Total net income attributable to ENLC, basic	29.0	78.8	139.7	196.6
Total net income attributable to ENLC, diluted	$ 29.0	$ 78.8	$ 139.7	$ 196.6