CONSOLIDATED BALANCE SHEETS (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
CURRENT ASSETS:
Cash and cash equivalents	$ 74	$ 17
Accounts receivable, net	55	69
Accounts receivable from related companies	33	64
Exchanges receivable	62	19
System natural gas and operating supplies	160	203
Other current assets	15	18
Total current assets	399	390
PROPERTY, PLANT AND EQUIPMENT:
Plant in service	3,252	4,208
Construction work in progress	64	70
Total property, plant and equipment	3,316	4,278
Accumulated depreciation and amortization	(192)	(216)
Net property, plant and equipment	3,124	4,062
DEFERRED CHARGES	13	12
INVESTMENTS IN UNCONSOLIDATED AFFILIATES	1,502	1,525
GOODWILL	1,152	1,336
NOTE RECEIVABLE FROM RELATED PARTY	386	396
OTHER NON-CURRENT ASSETS	82	135
Total assets	6,658	7,856
CURRENT LIABILITIES:
Current maturities of long-term debt	1	1
Accounts payable and accrued liabilities	2	33
Accounts payable to related companies	467	181
Exchanges payable	214	207
Federal, state and local taxes payable	13	10
Accrued interest	24	12
Derivative instruments	10	10
Customer advances and deposits	16	17
Other current liabilities	29	42
Total current liabilities	776	513
LONG-TERM DEBT, less current maturities	1,203	1,246
NOTE PAYABLE TO RELATED PARTY	0	1,090
DEFERRED CREDITS	18	15
DEFERRED INCOME TAXES	1,469	1,659
OTHER NON-CURRENT LIABILITIES	264	265
COMMITMENTS AND CONTINGENCIES (Note 11)
PARTNERS’ CAPITAL:
Partners’ capital	2,926	3,551
Accumulated other comprehensive income	2	3
Total partners’ capital	2,928	3,554
NONCONTROLLING INTEREST	0	(486)
Total liabilities and partners’ capital	$ 6,658	$ 7,856