CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Sep. 30, 2017	Mar. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 15		$ 4
Accounts receivable, net	37		46
Accounts receivable from related companies	12		17
Exchanges receivable	5		7
Inventories	95		179
Other current assets	3		4
Total current assets	167		257
Property, plant and equipment:
Property, Plant and Equipment, Gross	3,317		3,242
Accumulated depreciation	(411)		(355)
Net property, plant and equipment	2,906		2,887
Other non-current assets, net	161		153
Notes receivable from related parties	189		251
Goodwill	285		285
Total assets	$ 3,708		3,833
Current liabilities:
Current maturities of long-term debt		$ 710	307
Accounts payable and accrued liabilities		3	11
Accounts payable to related companies		44	66
Exchanges payable		77	165
Accrued interest		24	12
Customer advances and deposits		9	9
Other current liabilities		47	40
Total current liabilities		914	610
Long-term debt, less current maturities		413	834
Deferred income taxes		740	711
Other non-current liabilities		216	217
Commitments and contingencies
Partners’ capital:
Partners’ capital		1,415	1,456
Accumulated other comprehensive income		10	5
Total partners’ capital		1,425	1,461
Total liabilities and partners’ capital		$ 3,708	$ 3,833