CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Sep. 30, 2018	Dec. 31, 2017
Current Assets
Cash and cash equivalents	$ 48	$ 33
Accounts receivable and other (Note 14)	39	42
Inventories	7	8
Other	8	7
Total current assets	102	90
Equity investments (Note 5)	1,196	1,213
Property, plant and equipment, (Net of $1,252 accumulated depreciation; 2017 - $1,181)	2,075	2,123
Goodwill	130	130
Other assets	13	3
Total assets	3,516	3,559
Current Liabilities
Accounts payable and accrued liabilities	30	31
Provision for revenue sharing (Note 4)	9
Accounts payable to affiliates (Note 12)	5	5
Distributions payable		1
Accrued interest	20	12
Current portion of long-term debt (Note 7)	36	51
Total current liabilities	100	100
Long-term debt, net (Note 7)	2,211	2,352
Deferred state income taxes (Note 18)	10	10
Other liabilities	29	29
Total liabilities	2,350	2,491
Partners' Equity
Accumulated other comprehensive income (AOCI)	18	5
Controlling interests	1,061	963
Non-controlling interests	105	105
Total partners' equity	1,166	1,068
Total liabilities and partners' equity	3,516	3,559
Common Units
Partners' Equity
Limited partner	921	824
Class B Units
Partners' Equity
Limited partner	99	110
General partner	$ 23	$ 24