CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
CASH FLOWS FROM OPERATING ACTIVITIES
Net income/(loss)	$ (2,701)	$ 1,418
Reconciliation of net income/(loss) to net cash provided by operating activities:
Depreciation and amortization	333	283
(Gains)/losses on asset sales and asset impairments, net (Note 14)	618
Goodwill impairment losses (Note 6)	2,515
Equity-indexed compensation expense	4	24
Inventory valuation adjustments	232
Deferred income tax benefit	(12)	(52)
Loss on foreign currency revaluation	23	12
Settlement of terminated interest rate hedging instruments	(100)	(22)
Change in fair value of Preferred Distribution Rate Reset Option (Note 10)	(17)	(16)
Equity earnings in unconsolidated entities	(191)	(172)
Distributions on earnings from unconsolidated entities	236	200
(Gain on)/impairment of investments in unconsolidated entities, net (Note 7)	91	(267)
Other	10	12
Changes in assets and liabilities, net of acquisitions	(67)	44
Net cash provided by operating activities	974	1,464
CASH FLOWS FROM INVESTING ACTIVITIES
Cash paid in connection with acquisitions, net of cash acquired (Note 14)	(308)	(47)
Investments in unconsolidated entities	(314)	(259)
Additions to property, equipment and other	(472)	(642)
Proceeds from sales of assets (Note 14)	245	2
Cash paid for purchases of linefill and base gas	(12)	(24)
Other investing activities	3	(8)
Net cash used in investing activities	(858)	(978)
CASH FLOWS FROM FINANCING ACTIVITIES
Net borrowings/(repayments) under commercial paper program (Note 8)	(93)	218
Net borrowings/(repayments) under senior secured hedged inventory facility (Note 8)	(325)	100
Proceeds from the issuance of senior notes (Note 8)	748
Repayments of senior notes (Note 8)	(17)
Sale of noncontrolling interest in a subsidiary		128
Other financing activities	94	45
Net cash used in financing activities	(85)	(88)
Effect of translation adjustment	(9)	(3)
Net increase in cash and cash equivalents and restricted cash	22	395
Cash and cash equivalents and restricted cash, beginning of period	82	66
Cash and cash equivalents and restricted cash, end of period	104	461
Cash paid for:
Interest, net of amounts capitalized	213	188
Income taxes, net of amounts refunded	51	86
Series A Preferred Units
CASH FLOWS FROM FINANCING ACTIVITIES
Distributions paid to unitholders (Note 9)	(74)	(74)
Series B Preferred Units
CASH FLOWS FROM FINANCING ACTIVITIES
Distributions paid to unitholders (Note 9)	(25)	(25)
Common Units
CASH FLOWS FROM FINANCING ACTIVITIES
Distributions paid to unitholders (Note 9)	$ (393)	$ (480)