Document and Entity Information - USD ($) $ in Billions	12 Months Ended
	Dec. 31, 2018	Feb. 13, 2019	Jun. 30, 2018
Entity Information [Abstract]
Document Type	10-K
Document Fiscal Period Focus	FY
Document Period End Date	Dec. 31, 2018
Document Fiscal Year Focus	2018
Amendment Flag	false
Entity Registrant Name	ENLINK MIDSTREAM, LLC
Entity Central Index Key	0001592000
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		486,634,926
Entity Public Float			$ 1.1