SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Summary of significant accounting policies - goodwill (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Feb. 19, 2014
Goodwill	$ 923	$ 1,152	$ 1,336	$ 923	$ 1,152	$ 1,152	$ 1,152	$ 1,152	$ 1,152
Goodwill, Other Changes	(229)
Goodwill, Impairment Loss	$ 0	0	689
Successor
Goodwill, Impairment Loss			$ 689
Lake Charles LNG Transaction [Member]
Goodwill										$ 184
Goodwill, Other Changes		$ (184)