CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
REVENUES
Total revenues	$ 16,359	$ 9,930	$ 30,053	$ 18,313
COSTS AND EXPENSES
Purchases and related costs	15,324	9,277	28,109	16,669
Field operating costs	307	252	653	471
General and administrative expenses	78	72	160	139
Depreciation and amortization	242	196	473	374
(Gains)/losses on asset sales and asset impairments, net	(3)	369	(46)	370
Total costs and expenses	15,948	10,166	29,349	18,023
OPERATING INCOME/(LOSS)	411	(236)	704	290
OTHER INCOME/(EXPENSE)
Equity earnings in unconsolidated entities	104	33	201	121
Interest expense (net of capitalized interest of $1, $5, $2 and $10, respectively)	(99)	(107)	(206)	(213)
Other income/(expense), net	(118)	84	(155)	23
INCOME/(LOSS) BEFORE TAX	298	(226)	544	221
Current income tax expense	(30)	(1)	(48)	(3)
Deferred income tax (expense)/benefit	(17)	11	(20)	(11)
NET INCOME/(LOSS)	251	(216)	476	207
Net income attributable to noncontrolling interests	(48)	(4)	(86)	(5)
NET INCOME/(LOSS) ATTRIBUTABLE TO PAA	203	(220)	390	202
NET INCOME/(LOSS) PER COMMON UNIT (NOTE 4):
Net income/(loss) allocated to common unitholders - Basic	153	(269)	290	103
Net income/(loss) allocated to common unitholders - Diluted	$ 153	$ (269)	$ 290	$ 103
Common Units
NET INCOME/(LOSS) PER COMMON UNIT (NOTE 4):
Basic weighted average common units outstanding (units)	702	720	703	721
Diluted weighted average common units outstanding (units)	702	720	703	721
Basic net income/(loss) per common unit (usd per unit)	$ 0.22	$ (0.37)	$ 0.41	$ 0.14
Diluted net income/(loss) per common unit (usd per unit)	$ 0.22	$ (0.37)	$ 0.41	$ 0.14
Product sales revenues
REVENUES
Total revenues	$ 16,007	$ 9,623	$ 29,388	$ 17,706
Services revenues
REVENUES
Total revenues	$ 352	$ 307	$ 665	$ 607