CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 209	$ 392
Reconciliation of net income to net cash provided by operating activities:
Depreciation and amortization	231	178
(Gains)/losses on asset sales and asset impairments, net	(42)	2
Deferred income tax expense	16	52
Change in fair value of Preferred Distribution Rate Reset Option (Note 8)	44	67
Equity earnings in unconsolidated entities	(97)	(88)
Distributions on earnings from unconsolidated entities	96	110
Other	4	6
Changes in assets and liabilities, net of acquisitions	(122)	70
Net cash provided by operating activities	339	789
CASH FLOWS FROM INVESTING ACTIVITIES
Investments in unconsolidated entities	(3)	(35)
Additions to property, equipment and other	(101)	(97)
Proceeds from sales of assets	53	21
Cash paid for purchases of linefill	(39)	0
Other investing activities	9	3
Net cash used in investing activities	(81)	(108)
CASH FLOWS FROM FINANCING ACTIVITIES
Net borrowings/(repayments) under PAA commercial paper program (Note 6)	382	(410)
Net repayments under PAA senior secured hedged inventory facility (Note 6)	0	(166)
Repayments of PAA senior notes	(750)	0
Repurchase of common units by a subsidiary (Note 7)	(25)	(3)
Distributions paid to Class A shareholders (Note 7)	(35)	(35)
Distributions paid to noncontrolling interests (Note 7)	(188)	(138)
Other financing activities	20	66
Net cash used in financing activities	(596)	(686)
Effect of translation adjustment	3	0
Net decrease in cash and cash equivalents and restricted cash	(335)	(5)
Cash and cash equivalents and restricted cash, beginning of period	456	63
Cash and cash equivalents and restricted cash, end of period	121	58
Cash paid for:
Interest, net of amounts capitalized	74	65
Income taxes, net of amounts refunded	$ 23	$ 24