CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN PARTNERS' CAPITAL - USD ($) $ in Millions	Total	Noncontrolling Interests	Limited Partners Class A Shares
Beginning balance at Dec. 31, 2018	$ 13,319	$ 11,473	$ 1,846
Increase (Decrease) in Partners' Capital
Net income/(loss)	914	767	147
Distributions (Note 9)	(267)	(219)	(48)
Deferred tax asset	(3)		(3)
Other comprehensive income/(loss)	58	45	13
Other	1	1
Ending balance at Mar. 31, 2019	14,022	12,067	1,955
Beginning balance at Dec. 31, 2019	14,485	12,330	2,155
Increase (Decrease) in Partners' Capital
Net income/(loss)	(2,692)	(2,111)	(581)
Distributions (Note 9)	(311)	(245)	(66)
Deferred tax asset	20		20
Other comprehensive income/(loss)	(327)	(245)	(82)
Change in ownership interest in connection with Exchange Right exercises (Note 9)		(10)	10
Contributions from noncontrolling interests (Note 9)	8	8
Other	3	2	1
Ending balance at Mar. 31, 2020	$ 11,186	$ 9,729	$ 1,457