CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN PARTNERS' CAPITAL - USD ($) $ in Millions	Total	Noncontrolling Interests	Limited Partners Class A Shares
Beginning balance at Dec. 31, 2020	$ 11,190	$ 9,726	$ 1,464
Increase (Decrease) in Partners' Capital
Net income	392	322	70
Distributions (Note 7)	(185)	(150)	(35)
Deferred tax asset	(7)	0	(7)
Other comprehensive income	108	79	29
Repurchase of common units by a subsidiary (Note 7)	(3)	(3)	0
Contributions from noncontrolling interests	1	1	0
Other	3	1	2
Ending balance at Mar. 31, 2021	11,499	9,976	1,523
Beginning balance at Dec. 31, 2021	14,177	12,644	1,533
Increase (Decrease) in Partners' Capital
Net income	209	187	22
Distributions (Note 7)	(235)	(200)	(35)
Deferred tax asset	(5)	0	(5)
Other comprehensive income	74	53	21
Repurchase of common units by a subsidiary (Note 7)	(25)	(25)	0
Other	6	2	4
Ending balance at Mar. 31, 2022	$ 14,201	$ 12,661	$ 1,540