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 excluding NCI at Dec. 31, 2018	$ 12,002			$ 1,505	$ 787	$ 9,710
Increase (Decrease) in Partners' Capital
Net income/(loss)	970
Net income/(loss) attributable to PAA	970			37	12	921
Distributions (Note 9)	(267)			(37)	(12)	(218)
Other comprehensive income/(loss)	58					58
Other	(1)					(1)
Ending balance excluding NCI at Mar. 31, 2019	12,762			1,505	787	10,470
Beginning balance at Dec. 31, 2019	13,195	$ 13,062	$ 133	1,505	787	10,770
Beginning balance excluding NCI at Dec. 31, 2019	13,062
Increase (Decrease) in Partners' Capital
Net income/(loss)	(2,845)	(2,847)	2	37	12	(2,896)
Net income/(loss) attributable to PAA	(2,847)
Distributions (Note 9)	(311)	(311)		(37)	(12)	(262)
Other comprehensive income/(loss)	(327)	(327)				(327)
Contributions from noncontrolling interests (Note 9)	8		8
Other	2	2				2
Ending balance excluding NCI at Mar. 31, 2020	9,579
Ending balance at Mar. 31, 2020	$ 9,722	$ 9,579	$ 143	$ 1,505	$ 787	$ 7,287