Members' Equity - Computation and Distribution Activity (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Distributed earnings allocated to:
Total distributed earnings	$ 58.8	$ 55.7	$ 118.3	$ 111.2
Undistributed loss allocated to:
Total undistributed loss, basic	(4.5)	29.6	(5.8)	9.3
Total undistributed loss, diluted	(4.5)	29.6	(5.8)	9.3
Net income attributable to ENLC allocated to:
Total net income attributable to ENLC, basic	54.3	85.3	112.5	120.5
Total net income attributable to ENLC, diluted	$ 54.3	$ 85.3	$ 112.5	$ 120.5
Net income attributable to ENLC per unit:
Basic (in dollars per share)	$ 0.12	$ 0.18	$ 0.24	$ 0.25
Diluted (in dollars per share)	$ 0.12	$ 0.17	$ 0.24	$ 0.25
Unvested unit-based awards
Distributed earnings allocated to:
Total distributed earnings	$ 1.0	$ 1.4	$ 1.9	$ 2.5
Undistributed loss allocated to:
Total undistributed loss, basic	(0.1)	0.6	(0.1)	0.2
Total undistributed loss, diluted	(0.1)	0.6	(0.1)	0.2
Net income attributable to ENLC allocated to:
Total net income attributable to ENLC, basic	0.9	2.0	1.8	2.7
Total net income attributable to ENLC, diluted	0.9	2.0	1.8	2.7
Common units
Distributed earnings allocated to:
Total distributed earnings	57.8	54.3	116.4	108.7
Undistributed loss allocated to:
Total undistributed loss, basic	(4.4)	29.0	(5.7)	9.1
Total undistributed loss, diluted	(4.4)	29.0	(5.7)	9.1
Net income attributable to ENLC allocated to:
Total net income attributable to ENLC, basic	53.4	83.3	110.7	117.8
Total net income attributable to ENLC, diluted	$ 53.4	$ 83.3	$ 110.7	$ 117.8