CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
OPERATING ACTIVITIES:
Net income (loss)	$ 589	$ 108	$ (45)
Reconciliation of net income (loss) to net cash provided by operating activities:
Depreciation and amortization	112	122	127
Goodwill Impairment	12	0	389
Deferred income taxes	(13)	12	(252)
Amortization of deferred financing fees	(4)	(13)	(24)
Distributions of earnings received from unconsolidated affiliates	0	0	6
Nonmonetary Transaction, Gain (Loss) Recognized on Transfer	428
Income tax expense (benefit)	(402)	49	(263)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Curtailment		0	0
Other non-cash	13	8	8
Changes in operating assets and liabilities	(51)	31	(49)
Net cash flows provided by operating activities	230	268	160
INVESTING ACTIVITIES:
Proceeds from affiliates	0	0	291
Increase (Decrease) in Notes Receivable, Related Parties, Current	0	0	(40)
Capital expenditures	(101)	(70)	(154)
Other	0	0	2
Net cash flows (used in) provided by investing activities	(101)	(70)	99
FINANCING ACTIVITIES:
Distribution Made to Limited Partner, Cash Distributions Paid	(375)	(24)	(74)
Proceeds from Related Party Debt	759	497	113
Repayments of Related Party Debt	(383)	(252)	0
Repayments of Long-term Debt	(150)	(400)	(300)
Proceeds from (Payments for) Other Financing Activities	0	(1)	0
Net cash flows used in financing activities	(149)	(180)	(261)
NET CHANGE IN CASH AND CASH EQUIVALENTS	(20)	18	(2)
CASH AND CASH EQUIVALENTS, beginning of period	20	2	4
CASH AND CASH EQUIVALENTS, end of period	$ 0	$ 20	$ 2