CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 492	$ 336
Reconciliation of net income to net cash provided by operating activities:
Depreciation and amortization	262	254
Gain on asset sales, net	(13)
Deferred income tax expense/(benefit)	27	(25)
Equity earnings in unconsolidated entities	(103)	(95)
Distributions on earnings from unconsolidated entities	125	132
Gain on investments in unconsolidated entities, net (Note 11)	(31)
Other	19	8
Changes in assets and liabilities, net of acquisitions	(140)	(192)
Net cash provided by operating activities	638	418
CASH FLOWS FROM INVESTING ACTIVITIES
Cash paid in connection with acquisitions, net of cash acquired	(624)	(91)
Investments in unconsolidated entities		(3)
Additions to property, equipment and other	(191)	(157)
Cash paid for purchases of linefill	(7)	(13)
Proceeds from sales of assets	3	3
Net cash used in investing activities	(819)	(261)
CASH FLOWS FROM FINANCING ACTIVITIES
Net borrowings under PAA commercial paper program (Note 5)	71	107
Proceeds from the issuance of PAA senior notes (Note 5)	998
Repurchase of Series A preferred units by a subsidiary (Note 6)	(333)
Distributions paid to Class A shareholders (Note 6)	(75)	(63)
Distributions paid to noncontrolling interests (Note 6)	(388)	(324)
Contributions from noncontrolling interests	4	12
Other financing activities	(15)	(4)
Net cash provided by/(used in) financing activities	262	(272)
Effect of translation adjustment	(1)	(4)
Net increase/(decrease) in cash and cash equivalents and restricted cash	80	(119)
Cash and cash equivalents and restricted cash, beginning of period	349	453
Cash and cash equivalents and restricted cash, end of period	429	334
Cash paid for:
Interest, net of amounts capitalized	90	64
Income taxes, net of amounts refunded	$ 27	$ 86