Operating Segments (Details 2) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Reconciliation of segment profit to net income attributable to PAA
Segment profit	$ 487	$ 530	$ 1,371	$ 1,627
Depreciation and amortization	(109)	(97)	(326)	(293)
Interest expense, net	(107)	(85)	(313)	(246)
Other expense, net	(4)	(4)	(7)	(2)
INCOME BEFORE TAX	267	344	725	1,086
Income tax expense	(17)	(20)	(66)	(90)
NET INCOME	250	324	659	996
Net income attributable to noncontrolling interests	(1)	(1)	(2)	(2)
NET INCOME ATTRIBUTABLE TO PAA	$ 249	$ 323	$ 657	$ 994