Consolidated Statements of Changes in Equity - USD ($) $ in Millions	Total	Series A Preferred Limited Partners [Member]	Series B Preferred Limited Partners [Member]	Series C Preferred Limited Partners [Member]	Limited Partners	Accumulated Other Comprehensive (Loss) Income	Noncontrolling Interests
Beginning balance at Dec. 31, 2020	$ 5,861	$ 489	$ 156	$ 106	$ 5,090	$ (7)	$ 27
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income (loss)	54	9	3	2	39	0	1
Total Cash Distribution to Unitholders	(86)	0	(3)	(2)	(81)	0	0
Distributions to noncontrolling interests	(1)	0	0	0	0	0	(1)
Employee Benefits and Share-based Compensation	4	0	0	0	4	0	0
Ending balance at Mar. 31, 2021	5,832	498	156	106	5,052	(7)	27
Beginning balance at Dec. 31, 2020	5,861	489	156	106	5,090	(7)	27
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income (loss)	79
Other comprehensive income	1
Ending balance at Sep. 30, 2021	5,666	499	156	106	4,885	(6)	26
Beginning balance at Mar. 31, 2021	5,832	498	156	106	5,052	(7)	27
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income (loss)	30	10	3	2	(46)	0	(1)
Total Cash Distribution to Unitholders	(105)	(18)	(3)	(2)	(82)	0	0
Distributions to noncontrolling interests	1	0	0	0	0	0	1
Employee Benefits and Share-based Compensation	1	0	0		1	0	0
Ending balance at Jun. 30, 2021	5,697	490	156	106	4,925	(7)	27
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income (loss)	55	9	4	3	38	0	(1)
Other comprehensive income	1	0	0	0	0	1	0
Total Cash Distribution to Unitholders	(88)	0	(4)	(3)	(81)	0	0
Distributions to noncontrolling interests	(2)	0	0	0	0	0	(2)
Employee Benefits and Share-based Compensation	(3)	0	0	0	3	0	0
Ending balance at Sep. 30, 2021	5,666	499	156	106	4,885	(6)	26
Beginning balance at Dec. 31, 2021	5,876	489	156	106	5,106	(6)	25
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income (loss)	81	9	3	2	66	0	1
Total Cash Distribution to Unitholders	(86)	0	(3)	(2)	(81)	0	0
Distributions to noncontrolling interests	(1)	0	0	0	0	0	(1)
Employee Benefits and Share-based Compensation	1	0	0	0	1	0	0
Ending balance at Mar. 31, 2022	5,871	498	156	106	5,092	(6)	25
Beginning balance at Dec. 31, 2021	5,876	489	156	106	5,106	(6)	25
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income (loss)	795
Other comprehensive income	0
Ending balance at Sep. 30, 2022	6,386	499	156	106	5,606	(6)	25
Beginning balance at Mar. 31, 2022	5,871	498	156	106	5,092	(6)	25
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income (loss)	384	9	3	3	368	0	1
Total Cash Distribution to Unitholders	(106)	(18)	(3)	(3)	(82)	0	0
Distributions to noncontrolling interests	(1)	0	0	0	0	0	(1)
Employee Benefits and Share-based Compensation	2	0	0	0	2	0	0
Ending balance at Jun. 30, 2022	6,150	489	156	106	5,380	(6)	25
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income (loss)	330	10	4	2	312	0	2
Other comprehensive income	0
Total Cash Distribution to Unitholders	(95)	0	(4)	(2)	(89)	0	0
Distributions to noncontrolling interests	(2)	0	0	0	0	0	(2)
Employee Benefits and Share-based Compensation	3	0	0	0	3	0	0
Ending balance at Sep. 30, 2022	$ 6,386	$ 499	$ 156	$ 106	$ 5,606	$ (6)	$ 25