CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN PARTNERS' CAPITAL - USD ($) $ in Millions	Total	Partners’ Capital Excluding Noncontrolling Interests	Noncontrolling Interests	Limited Partners Series A Preferred Units Partners’ Capital Excluding Noncontrolling Interests	Limited Partners Series B Preferred Units Partners’ Capital Excluding Noncontrolling Interests	Limited Partners Common Units Partners’ Capital Excluding Noncontrolling Interests
Beginning balance at Dec. 31, 2020	$ 9,738	$ 9,593	$ 145	$ 1,505	$ 787	$ 7,301
Increase (Decrease) in Partners' Capital
Net income/(loss)	207	202	5	74	25	103
Distributions (Note 7)	(365)	(359)	(6)	(74)	(25)	(260)
Other comprehensive income (loss)	108	108				108
Repurchase of common units (Note 7)	(53)	(53)				(53)
Other	5	4	1			4
Ending balance at Jun. 30, 2021	9,640	9,495	145	1,505	787	7,203
Beginning balance at Mar. 31, 2021	10,084	9,943	141	1,505	787	7,651
Increase (Decrease) in Partners' Capital
Net income/(loss)	(216)	(220)	4	37	12	(269)
Distributions (Note 7)	(179)	(179)		(37)	(12)	(130)
Repurchase of common units (Note 7)	(50)	(50)				(50)
Other	1	1				1
Ending balance at Jun. 30, 2021	9,640	9,495	145	1,505	787	7,203
Beginning balance at Dec. 31, 2021	12,810	9,972	2,838	1,505	787	7,680
Increase (Decrease) in Partners' Capital
Net income/(loss)	476	390	86	74	25	291
Distributions (Note 7)	(500)	(379)	(121)	(74)	(25)	(280)
Other comprehensive income (loss)	22	22				22
Repurchase of common units (Note 7)	(74)	(74)				(74)
Other	(15)	0	(15)			0
Ending balance at Jun. 30, 2022	12,719	9,931	2,788	1,505	787	7,639
Beginning balance at Mar. 31, 2022	12,854	10,043	2,811	1,505	787	7,751
Increase (Decrease) in Partners' Capital
Net income/(loss)	251	203	48	37	12	154
Distributions (Note 7)	(264)	(202)	(62)	(37)	(12)	(153)
Other comprehensive income (loss)	(52)	(52)				(52)
Repurchase of common units (Note 7)	(49)	(49)				(49)
Other	(21)	(12)	(9)			(12)
Ending balance at Jun. 30, 2022	$ 12,719	$ 9,931	$ 2,788	$ 1,505	$ 787	$ 7,639