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INVESTMENTS IN UNCONSOLIDATED AFFILIATES INV IN UNCONSOLIDATED AFFILIATES - Narrative (Details) - USD ($)
shares in Millions, $ in Millions
Mar. 31, 2016
Dec. 31, 2015
Sep. 30, 2015
Schedule of Equity Method Investments [Line Items]      
Notes Receivable, Related Parties     $ 1,370
Goodwill $ 923 $ 923  
Investment In ETP [Member]      
Schedule of Equity Method Investments [Line Items]      
Goodwill     229
Deferred Tax Liabilities, Deferred Expense     $ 825
ETP [Member]      
Schedule of Equity Method Investments [Line Items]      
Number of common units of a subsidiary partnership that are held by a less than wholly-owned subsidiary of the Parent.     17.8
SUG Holding Note Receivable [Member]      
Schedule of Equity Method Investments [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage     4.75%