Related Party Balances (Details) - USD ($) $ in Millions	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014
Related Party Transaction
Non-current notes receivable from related party — ETP	$ 574	$ 1,369	$ 40	$ 40	$ 0	$ 386	$ 386	$ 386
ADVANCES FROM AFFILIATES	$ 0	$ 566	$ 0	$ 0	$ 51	$ 0	$ 0	$ 0