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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 351	$ 475
Other comprehensive loss	(71)	(1)
Comprehensive income	280	474
Comprehensive income attributable to noncontrolling interests	(85)	(53)
Comprehensive income attributable to PAA	$ 195	$ 421

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