CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
OPERATING REVENUES:
Transportation and storage of natural gas	$ 149	$ 170
Other	6	9
Total operating revenues	155	179
OPERATING EXPENSES:
Cost of natural gas and other energy	2	1
Operating, maintenance and general	65	57
Depreciation and amortization	35	31
Total operating expenses	102	89
OPERATING INCOME	53	90
OTHER INCOME (EXPENSE):
Interest expense, net of interest capitalized	13	18
Equity in earnings (losses) from unconsolidated investments	4	(8)
Interest income - affiliates	0	5
Other, net	(1)	2
Total other expenses, net	(10)	(19)
INCOME BEFORE INCOME TAX EXPENSE	43	71
Income tax expense	12	106
NET INCOME (LOSS)	31	(35)
LESS: NET INCOME ATTRIBUTABLE TO NONCONTROLLING INTEREST	0	6
NET INCOME (LOSS) ATTRIBUTABLE TO PARTNERS	$ 31	$ (41)