Related Party Transactions (Details) (USD $)	9 Months Ended	12 Months Ended	5 Months Ended	12 Months Ended		0 Months Ended	12 Months Ended	0 Months Ended	12 Months Ended			5 Months Ended	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2013	May 24, 2012 Predecessor	Dec. 31, 2011 Predecessor	Dec. 31, 2013 Affiliate Supply Agreement Eagle Ford drilling operations	May 24, 2012 Sponsors Amended and Restated Management Fee Agreement	Dec. 31, 2013 Sponsors Amended and Restated Management Fee Agreement	Jan. 02, 2014 Sponsors Amended and Restated Management Fee Agreement Subsequent event	Dec. 31, 2013 Sponsors Transaction Fee Agreement	Dec. 31, 2013 El Paso	Dec. 31, 2013 El Paso Maximum	May 24, 2012 El Paso Predecessor	Dec. 31, 2011 El Paso Predecessor
Related Party Transactions
Distribution made to member	$ 3,323,000,000	$ (200,000,000)
General and administrative expense							26,000,000		71,500,000
Agreement term						12 years
Capital expenditures	877,000,000	1,924,000,000	636,000,000	1,591,000,000	120,000,000
Non-refundable annual management fee							25,000,000
Management fee paid							6,250,000	6,250,000
Contributions			1,481,000,000									1,500,000,000
Non-cash contributions												500,000,000
Cash contribution												960,000,000
Percentage of participant basic contributions matched		6.00%									6.00%
Maximum percentage of eligible compensation for which contributions are made										75.00%
Revenues and charges to/from affiliates
Operating revenues												143,000,000	634,000,000
Operating expenses												44,000,000	138,000,000
Reimbursements of operating expenses													$ 3,000,000