Partnership Equity and Distributions (Tables)

3 Months Ended

Mar. 31, 2020

Equity [Abstract]

Cash Distribution

Payment Date	Per Unit Distribution		Total Cash Distribution
			(millions)
Distributions to common unitholders
February 14, 2020	$	0.78	$	162
November 14, 2019	$	0.78	$	155
August 14, 2019	$	0.78	$	154
May 15, 2019	$	0.78	$	155
February 14, 2019	$	0.78	$	154
Distributions to Series A Preferred unitholders
December 16, 2019	$	36.875	$	19
June 17, 2019	$	36.875	$	18
Distributions to Series B Preferred unitholders
March 16, 2020	$	0.4922	$	3
December 16, 2019	$	0.4922	$	4
September 16, 2019	$	0.4922	$	3
June 17, 2019	$	0.4922	$	3
March 15, 2019	$	0.4922	$	3
Distributions to Series C Preferred unitholders
January 15, 2020	$	0.4969	$	2
October 15, 2019	$	0.4969	$	2
July 15, 2019	$	0.4969	$	3
April 15, 2019	$	0.4969	$	2
January 15, 2019	$	0.5576	$	2