Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
OPERATING ACTIVITIES:
Net (loss) income	$ (549)	$ 76
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization expense	99	103
Earnings from unconsolidated affiliates	(76)	(113)
Distributions from unconsolidated affiliates	153	124
Net unrealized (gains) losses on derivative instruments	(134)	54
Loss on sale of assets, net	0	9
Asset Impairment	746	0
Other, net	(17)	(6)
Change in operating assets and liabilities, which (used) provided cash, net of effects of acquisitions:
Accounts receivable	(282)	(118)
Inventories	(16)	(14)
Accounts payable	(310)	29
Decrease in Other Operating Assets and Liabilities, Net	70	(103)
Net cash provided by operating activities	314	317
INVESTING ACTIVITIES:
Capital expenditures	(69)	(182)
Investments in unconsolidated affiliates	(34)	(131)
Proceeds from sale of assets	0	103
Net cash used in investing activities	(103)	(210)
FINANCING ACTIVITIES:
Proceeds from debt	2,151	1,402
Payments of debt	2,152	1,348
Distributions to preferred limited partners	5	5
Distributions to limited partners and general partner	(162)	(154)
Distributions to noncontrolling interest	1	1
Proceeds from (Payments for) Other Financing Activities	(2)	(1)
Net cash provided by (used in) financing activities	(171)	(107)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect	40	0
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	41	1
Cash and cash equivalents, end of period	18	1
Restricted Cash, Current	12	0
Restricted Cash, Noncurrent	$ 11	$ 0