Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Current Assets:
Cash and cash equivalents	$ 19	$ 53
Trade accounts receivable	292	222
Related party receivables	28	8
Inventories	42	27
Other current assets	19	30
Total current assets	400	340
Property, Plant and Equipment:
Gathering and transmission systems	1,671	1,308
Compression equipment	1,627	1,326
Gas plants and buildings	825	568
Other property, plant and equipment	414	377
Construction-in-progress	513	507
Total property, plant and equipment	5,050	4,086
Less accumulated depreciation	(632)	(400)
Property, plant and equipment, net	4,418	3,686
Other Assets:
Investments in unconsolidated affiliates	2,097	2,214
Other, net of accumulated amortization of debt issuance costs of $24 and $17	57	43
Total other assets	2,154	2,257
Intangible Assets and Goodwill:
Intangible assets, net of accumulated amortization of $107 and $77	682	712
Goodwill	1,128	1,128
Total intangible assets and goodwill	1,810	1,840
TOTAL ASSETS	8,782	8,123
Current Liabilities:
Drafts payable	26	10
Trade accounts payable	291	255
Related party payables	69	95
Accrued interest	38	30
Other current liabilities	51	99
Total current liabilities	475	489
Long-term derivative liabilities	19	25
Other long-term liabilities	30	39
Long-term debt, net	3,310	2,157
Commitments and contingencies
Series A Preferred Units, redemption amount of $38 and $85	32	73
Partners’ Capital and Noncontrolling Interest:
Common units (214,287,955 and 174,574,175 units authorized; 210,850,232 and 170,951,457 units issued and outstanding at December 31, 2013 and 2012)	3,886	3,207
Class F common units	146	0
General partner interest	782	326
Predecessor equity	0	1,733
Accumulated other comprehensive loss	0	(3)
Total partners’ capital	4,814	5,263
Noncontrolling interest	102	77
Total partners’ capital and noncontrolling interest	4,916	5,340
TOTAL LIABILITIES AND PARTNERS’ CAPITAL AND NONCONTROLLING INTEREST	$ 8,782	$ 8,123