CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Statement of Cash Flows [Abstract]
Non-Cash Contribution	$ 5	$ (541)
Interest Paid	(43)	43
OPERATING ACTIVITIES:
Net income	26	59
Reconciliation of net income to net cash provided by operating activities:
Depreciation and amortization	95	98
Deferred income taxes	29	45
Amortization included in interest expense	(19)	(18)
Other non-cash	12	8
Changes in operating assets and liabilities	(4)	110
Net Cash Provided by (Used in) Operating Activities	139	302
INVESTING ACTIVITIES:
Capital expenditures	(118)	(70)
Repayment of Notes Receivable from Related Parties	102	35
Notes receivable issued to related party	(40)	(265)
Payments for (Proceeds from) Other Investing Activities	(2)	0
Net cash flows used in investing activities	(54)	(300)
FINANCING ACTIVITIES:
Distribution Made to Limited Partner, Cash Distributions Paid	74	0
Net Cash Provided by (Used in) Financing Activities	(74)	0
Net change in cash and cash equivalents	11	2
Cash and cash equivalents, beginning of period	4	3
Cash and cash equivalents, end of period	$ 15	$ 5