Equity Quarterly Distributions Of Available Cash (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended											9 Months Ended
	Sep. 30, 2020	Jun. 30, 2020		Mar. 31, 2020		Dec. 31, 2019		Sep. 30, 2019		Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2020	Sep. 30, 2019	[1]
Distribution Made to Member or Limited Partner [Line Items]
Net income (loss)	$ (362)			$ 5,112				$ 1,250	[1]		$ 3,829	$ (557)	$ 3,751
Preferred Units [Member]
Distribution Made to Member or Limited Partner [Line Items]
Net income (loss)								55		$ 53	40
Series A Preferred Units [Member]
Distribution Made to Member or Limited Partner [Line Items]
Net income (loss)								15		15	15
Series B Preferred Units [Member]
Distribution Made to Member or Limited Partner [Line Items]
Net income (loss)								9		9	9
Series C Preferred Units [Member]
Distribution Made to Member or Limited Partner [Line Items]
Net income (loss)								8		9	8
Series D Preferred Units [Member]
Distribution Made to Member or Limited Partner [Line Items]
Net income (loss)								8		9	8
Series E Preferred Units [Member]
Distribution Made to Member or Limited Partner [Line Items]
Net income (loss)								$ 15		$ 11	$ 0
USAC [Member]
Distribution Made to Member or Limited Partner [Line Items]
Rate	$ 0.5250	$ 0.5250		$ 0.5250		$ 0.5250
Traverse
Distribution Made to Member or Limited Partner [Line Items]
Rate	0.8255	0.8255		0.8255		0.8255
Series A Preferred Units [Member]
Distribution Made to Member or Limited Partner [Line Items]
Rate	0	31.25	[2]	0	[2]	31.25	[2]
Series B Preferred Units [Member]
Distribution Made to Member or Limited Partner [Line Items]
Rate	0	33.125	[2]	0	[2]	33.125	[2]
Series C Preferred Units [Member]
Distribution Made to Member or Limited Partner [Line Items]
Rate	0.4609	0.4609		0.4609		0.4609
Series D Preferred Units [Member]
Distribution Made to Member or Limited Partner [Line Items]
Rate	0.4766	0.4766		0.4766		0.4766
Series E Preferred Units [Member]
Distribution Made to Member or Limited Partner [Line Items]
Rate	0.4750	0.4750		0.4750		0.4750
Series F Preferred Units [Member]
Distribution Made to Member or Limited Partner [Line Items]
Rate	33.75	0	[3]	21.19	[3]	0	[3]
Series G Preferred Units [Member]
Distribution Made to Member or Limited Partner [Line Items]
Rate	$ 35.625	$ 0	[3]	$ 22.36	[3]	$ 0	[3]

[1] *As adjusted. See Note 1.

[2] Series A Preferred Unit and Series B Preferred Unit distributions are paid on a semi-annual basis.

[3] Series F Preferred Unit and Series G Preferred Unit distributions related to the period ended March 31, 2020 represent a prorated initial distribution. Distributions are paid on a semi-annual basis.