Operating Segments (Details 2) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Reconciliation of segment profit to net income attributable to PAA
Segment profit	$ 371	$ 488	$ 884	$ 1,097
Depreciation and amortization	(110)	(100)	(217)	(196)
Interest expense, net	(105)	(82)	(207)	(161)
Other income/(expense), net	1	4	(3)	2
INCOME BEFORE TAX	157	310	457	742
Income tax expense	(33)	(22)	(49)	(70)
NET INCOME	124	288	408	672
Net income attributable to noncontrolling interests		(1)	(1)	(1)
NET INCOME ATTRIBUTABLE TO PAA	$ 124	$ 287	$ 407	$ 671