CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions		Jun. 30, 2017	Dec. 31, 2016
Current Assets
Cash and cash equivalents		$ 51	$ 64	[1]
Accounts receivable and other (Note 13)		37	47	[1]
Inventories		7	7	[1]
Other		5	7	[1]
Total current assets		100	125	[1]
Equity investments (Note 4)		1,138	918	[1]
Plant, property and equipment (Net of $1,135 accumulated depreciation; 2016 - $1,088)		2,148	2,180	[1]
Goodwill		130	130	[1]
Other assets	[1]		1
Total assets		3,516	3,354	[1]
Current Liabilities
Accounts payable and accrued liabilities		27	29	[1]
Accounts payable to affiliates (Note 6 and 11)		35	8	[1]
Distribution payable	[1]		3
Accrued interest		11	10	[1]
Current portion of long-term debt (Note 5)		57	52	[1]
Total current liabilities		130	102	[1]
Long-term debt, net (Note 5)		2,333	1,859	[1]
Deferred state income taxes (Note 18)		10	10	[1]
Other liabilities		28	28	[1]
Total liabilities		2,501	1,999	[1]
Common units subject to rescission (Note 7)	[1]		83
Partners' Equity
General partner		25	27	[1]
Accumulated other comprehensive loss		(1)	(2)	[1]
Controlling interests		914	1,144	[1]
Non-controlling interests		101	97	[1]
Equity of former parent of PNGTS	[1]		31
Total partners' equity	[2]	1,015	1,272	[1]
Total liabilities and partners' equity		3,516	3,354	[1]
Common Units
Partners' Equity
Limited partner		795	1,002	[1]
Class B Units
Partners' Equity
Limited partner		$ 95	$ 117	[1]

[1] Recast to consolidate PNGTS for all periods presented (Refer to Notes 2 and 6).

[2] Recast to consolidate PNGTS for all periods presented. See Notes 2 and 6.