CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
REVENUES
Supply and Logistics segment revenues	$ 25,056	$ 19,004	$ 21,927
Transportation segment revenues	612	632	697
Facilities segment revenues	555	546	528
Total revenues	26,223	20,182	23,152
COSTS AND EXPENSES
Purchases and related costs	22,985	17,233	19,726
Field operating costs	1,183	1,182	1,454
General and administrative expenses	276	279	278
Depreciation and amortization	626	494	432
Total costs and expenses	25,070	19,188	21,890
OPERATING INCOME	1,153	994	1,262
OTHER INCOME/(EXPENSE)
Equity earnings in unconsolidated entities	290	195	183
Interest expense (net of capitalized interest of $35, $47 and $57, respectively)	(510)	(467)	(432)
Other income/(expense), net	(31)	33	(7)
INCOME BEFORE TAX	902	755	1,006
Current income tax expense	(28)	(85)	(84)
Deferred income tax (expense)/benefit	(16)	60	(16)
NET INCOME	858	730	906
Net income attributable to noncontrolling interests	(2)	(4)	(3)
NET INCOME ATTRIBUTABLE TO PAA	856	726	903
NET INCOME PER COMMON UNIT (NOTE 3):
Net income allocated to common unitholders — Basic	685	200	305
Net income allocated to common unitholders — Diluted	$ 685	$ 200	$ 305
Common Units
NET INCOME PER COMMON UNIT (NOTE 3):
Basic weighted average common units outstanding (in units)	717	464	394
Basic net income per common unit (in dollars per unit)	$ 0.96	$ 0.43	$ 0.78
Diluted weighted average common units outstanding (in units)	718	466	396
Diluted net income per common unit (in dollars per unit)	$ 0.95	$ 0.43	$ 0.77