CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
REVENUES
Total revenues	$ 10,642	$ 12,757	$ 22,119	$ 24,396
COSTS AND EXPENSES
Purchases and related costs	9,758	11,838	20,277	22,543
Field operating costs	286	280	585	553
General and administrative expenses	82	79	168	160
Depreciation and amortization	235	226	466	449
Losses on asset sales, net	42	2	29	3
Total costs and expenses	10,403	12,425	21,525	23,708
OPERATING INCOME	239	332	594	688
OTHER INCOME/(EXPENSE)
Equity earnings in unconsolidated entities	94	106	196	201
Gain on investments in unconsolidated entities, net	0	0	31	0
Interest expense (net of capitalized interest of $3, $2, $5 and $4, respectively)	(133)	(111)	(260)	(205)
Other income, net	31	23	57	18
INCOME FROM CONTINUING OPERATIONS BEFORE TAX	231	350	618	702
Current income tax expense from continuing operations	(1)	(52)	(6)	(68)
Deferred income tax (expense)/benefit from continuing operations	(3)	0	(5)	5
INCOME FROM CONTINUING OPERATIONS, NET OF TAX	227	298	607	639
INCOME FROM DISCONTINUED OPERATIONS, NET OF TAX (NOTE 2)	70	32	206	42
NET INCOME	297	330	813	681
Net income attributable to noncontrolling interests	(87)	(80)	(160)	(166)
NET INCOME ATTRIBUTABLE TO PAA	210	250	653	515
NET INCOME PER COMMON UNIT (NOTE 4):
Net income allocated to common unitholders — Basic : Continuing operations	80	148	287	340
Net income allocated to common unitholders — Diluted: Continuing operations	80	148	287	340
Net income allocated to common unitholders — Basic : Discontinued operations	70	32	206	42
Net income allocated to common unitholders — Diluted : Discontinued operations	70	32	206	42
Net income allocated to common unitholders - Basic	150	180	493	382
Net income allocated to common unitholders - Diluted	$ 150	$ 180	$ 493	$ 382
Basic net income per common unit: continuing operations (usd per unit)	$ 0.11	$ 0.21	$ 0.41	$ 0.49
Diluted net income per common unit: continuing operations (usd per unit)	0.11	0.21	0.41	0.49
Basic net income per common unit: discontinuing operations (usd per unit)	0.10	0.05	0.29	0.06
Diluted net income per common unit: discontinuing operations (usd per unit)	$ 0.10	$ 0.05	$ 0.29	$ 0.06
Common Units
NET INCOME PER COMMON UNIT (NOTE 4):
Basic weighted average common units outstanding (units)	703	701	704	701
Diluted weighted average common units outstanding (units)	703	701	704	701
Basic net income per common unit (usd per unit)	$ 0.21	$ 0.26	$ 0.70	$ 0.55
Diluted net income per common unit (usd per unit)	$ 0.21	$ 0.26	$ 0.70	$ 0.55
Product sales revenues
REVENUES
Total revenues	$ 10,197	$ 12,351	$ 21,243	$ 23,584
Services revenues
REVENUES
Total revenues	$ 445	$ 406	$ 876	$ 812