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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Summary of significant accounting policies - goodwill (Details) (USD $)
In Millions, unless otherwise specified
 9 Months Ended 12 Months Ended
Dec. 31, 2012
Dec. 31, 2014
Dec. 31, 2013
GOODWILL   $ 1,152us-gaap_Goodwill $ 1,336us-gaap_Goodwill
Trunkline LNG [Member]      
GOODWILL 873us-gaap_Goodwill
/ dei_LegalEntityAxis
= ete_LakeCharlesLNGMember		   184us-gaap_Goodwill
/ dei_LegalEntityAxis
= ete_LakeCharlesLNGMember
Successor      
Goodwill, Impairment Loss $ 0us-gaap_GoodwillImpairmentLoss
/ us-gaap_StatementScenarioAxis
= us-gaap_SuccessorMember		 $ 0us-gaap_GoodwillImpairmentLoss
/ us-gaap_StatementScenarioAxis
= us-gaap_SuccessorMember		 $ 689us-gaap_GoodwillImpairmentLoss
/ us-gaap_StatementScenarioAxis
= us-gaap_SuccessorMember