CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
OPERATING REVENUES:
Transportation and storage of natural gas	$ 136	$ 149
Other	5	6
Total operating revenues	141	155
OPERATING EXPENSES:
Cost of natural gas and other energy	1	2
Operating and maintenance	50	53
General and administrative	10	12
Depreciation and amortization	32	35
Total operating expenses	93	102
OPERATING INCOME	48	53
OTHER INCOME (EXPENSE):
Interest expense, net	(13)	(13)
Equity in earnings of unconsolidated affiliates	0	4
Interest income - affiliates	7	0
Other, net	1	(1)
Total other expenses, net	(5)	(10)
INCOME BEFORE INCOME TAX EXPENSE	43	43
Income tax expense	12	12
NET INCOME	31	31
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	$ 31	$ 31