Condensed Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Current Assets:
Cash and cash equivalents	$ 12	$ 53
Trade accounts receivable, net	60	115
Accrued revenues	214	107
Related party receivables	18	8
Other current assets	63	57
Total current assets	367	340
Property, plant and equipment:
Property, plant and equipment	4,812	4,086
Less accumulated depreciation	(570)	(400)
Property, plant and equipment, net	4,242	3,686
Other Assets:
Investment in unconsolidated affiliates	2,081	2,214
Other, net of accumulated amortization of debt issuance costs of $22 and $17	58	43
Total other assets	2,139	2,257
Intangible assets, net of accumulated amortization of $99 and $77	690	712
Goodwill	1,128	1,128
TOTAL ASSETS	8,566	8,123
Current Liabilities:
Drafts payable	17	10
Trade accounts payable	134	122
Accrued cost of gas and liquids	163	133
Related party payables	57	95
Accrued interest	52	30
Other current liabilities	45	82
Deferred revenues	15	17
Total current liabilities	483	489
Long-term derivative liabilities	23	25
Other long-term liabilities	38	39
Long-term debt, net	2,976	2,157
Commitments and contingencies
Series A preferred units, redemption amounts of $37 and $85	32	73
Partners’ capital and noncontrolling interest:
Common units	3,990	3,207
Common Stock, Other Value, Outstanding	145	0
General partner interest	783	326
Predecessor equity	0	1,733
Accumulated other comprehensive loss	0	(3)
Total partners’ capital	4,918	5,263
Noncontrolling interest	96	77
Total partners’ capital and noncontrolling interest	5,014	5,340
TOTAL LIABILITIES AND PARTNERS’ CAPITAL AND NONCONTROLLING INTEREST	8,566	8,123
Class F Units [Member]
Partners’ capital and noncontrolling interest:
Total partners’ capital and noncontrolling interest	$ 145	$ 0