CONSOLIDATED BALANCE SHEETS (USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
CURRENT ASSETS:
Cash and cash equivalents	$ 32	$ 17
Accounts receivable, net	51	69
Accounts receivable from related companies	57	64
Exchanges receivable	45	19
System natural gas and operating supplies	147	203
Other current assets	20	18
Total current assets	352	390
PROPERTY, PLANT AND EQUIPMENT:
Plant in service	3,298	4,208
Construction work in progress	33	70
Total property, plant and equipment	3,331	4,278
Accumulated depreciation and amortization	(215)	(216)
Net property, plant and equipment	3,116	4,062
INVESTMENTS IN UNCONSOLIDATED AFFILIATES	1,488	1,525
GOODWILL	1,152	1,336
NOTE RECEIVABLE FROM RELATED PARTY	386	396
OTHER NON-CURRENT ASSETS, net	105	147
Total assets	6,599	7,856
CURRENT LIABILITIES:
Current maturities of long-term debt	1	1
Accounts payable and accrued liabilities	5	33
Accounts payable to related companies	451	181
Exchanges payable	179	207
Accrued interest	12	12
Price risk management liabilities	10	10
Customer advances and deposits	21	17
Other current liabilities	47	52
Total current liabilities	726	513
LONG-TERM DEBT, less current maturities	1,201	1,246
NOTE PAYABLE TO RELATED PARTY	0	1,090
NON-CURRENT PRICE RISK MANAGEMENT LIABILITIES	22	15
DEFERRED INCOME TAXES	1,461	1,659
OTHER NON-CURRENT LIABILITIES	272	265
COMMITMENTS AND CONTINGENCIES (Note 11)
PARTNERS’ CAPITAL:
Partners’ capital	2,915	3,551
Accumulated other comprehensive income	2	3
Total partners’ capital	2,917	3,554
NONCONTROLLING INTEREST	0	(486)
Total liabilities and partners’ capital	$ 6,599	$ 7,856