CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Capital Expenditures Incurred but Not yet Paid	$ 11	$ 18
OPERATING ACTIVITIES:
Net income	56	22
Reconciliation of net income to net cash provided by operating activities:
Depreciation and amortization	60	63
Deferred income taxes	17	19
Amortization of deferred financing fees	(9)	(13)
Other non-cash	5	8
Changes in operating assets and liabilities	16	(9)
Net Cash Provided by (Used in) Operating Activities	145	90
INVESTING ACTIVITIES:
Capital expenditures	(31)	(83)
Repayment of Notes Receivable from Related Parties	0	99
Notes receivable issued to related party	0	(30)
Payments for (Proceeds from) Other Investing Activities	0	(3)
Net cash flows used in investing activities	(31)	(11)
FINANCING ACTIVITIES:
Distributions to partners	24	74
Repayments of Long-term Debt	(400)	0
Note payable issued from related party	380	0
Repayment of note payable from related party	66	0
Net cash flows used in financing activities	(110)	(74)
Net change in cash and cash equivalents	4	5
Cash and cash equivalents, beginning of period	2	4
Cash and cash equivalents, end of period	6	9
SUPPLEMENTAL INFORMATION:
Non-Cash Contribution	11	5
Cash paid for interest	$ 14	$ 37