Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2019	Jun. 30, 2019
Document and Entity Information
Entity Registrant Name	EP Energy LLC
Entity Central Index Key	0001555082
Document Type	10-K
Document Period End Date	Dec. 31, 2019
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	Yes
Entity Current Reporting Status	No
Entity Emerging Growth Company	false
Entity Small Business	true
Entity Filer Category	Non-accelerated Filer
Entity Shell Company	false
Entity Public Float		$ 0
Entity Common Stock, Shares Outstanding (in shares)	0
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY