CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 1,502	$ 1,228	$ 648
Other comprehensive income/(loss)	118	(101)	65
Comprehensive income	1,620	1,127	713
Comprehensive income attributable to noncontrolling interests	(272)	(191)	(55)
Comprehensive income attributable to PAA	$ 1,348	$ 936	$ 658