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Condensed Consolidated Statements Of Operations Statements of Operations (Paranthetical) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Paranthetical [Abstract]    
Gas sales, related party amounts $ 13 $ 5
NGL sales, related party amounts 50 25
Gathering, transportation and other fees, related party amounts 6 7
Cost of sales, related party amounts $ 10 $ 9