Consolidated Statements of Operations (Parenthetical) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Gas sales, related party amounts	$ 71	$ 42	$ 23
NGL sales, related party amounts	81	28	365
Gathering, transportation and other fees, related party amounts	26	29	24
Other revenues, related party amounts	0	1	10
Cost of sales, related party amounts	56	35	22
General and administrative, related party amounts	$ 11	$ 15	$ 17