Net Income/(Loss) Per Class A Share (Tables)

12 Months Ended

Dec. 31, 2022

Earnings Per Share [Abstract]

Summary of calculation of basic and diluted net income per Class A share

The following table sets forth the computation of basic and diluted net income/(loss) per Class A share (in millions, except per share data):

	Year Ended December 31,
	2022		2021		2020
Basic Net Income/(Loss) per Class A Share
Net income/(loss) attributable to PAGP	$	168	$	60	$	(568)
Basic weighted average Class A shares outstanding	194		194		186
Basic net income/(loss) per Class A share	$	0.86	$	0.31	$	(3.06)
Diluted Net Income/(Loss) per Class A Share
Net income/(loss) attributable to PAGP	$	168	$	60	$	(568)
Incremental net income/(loss) attributable to PAGP resulting from assumed exchange of AAP units	—		—		(189)
Net income/(loss) attributable to PAGP including incremental net income/(loss) from assumed exchange of AAP units	$	168	$	60	$	(757)
Basic weighted average Class A shares outstanding	194		194		186
Dilutive shares resulting from assumed exchange of AAP units	—		—		60
Diluted weighted average Class A shares outstanding	194		194		246
Diluted net income/(loss) per Class A share	$	0.86	$	0.31	$	(3.07)