Net Income Per Class A Share (Tables)

9 Months Ended

Sep. 30, 2020

Earnings Per Share [Abstract]

Calculation of basic and diluted net income/(loss) 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):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Basic Net Income/(Loss) per Class A Share
Net income/(loss) attributable to PAGP	$	17	$	70	$	(548)	$	283
Basic weighted average Class A shares outstanding	186		168		184		163
Basic net income/(loss) per Class A share	$	0.09	$	0.41	$	(2.97)	$	1.73
Diluted Net Income/(Loss) per Class A Share
Net income/(loss) attributable to PAGP	$	17	$	70	$	(548)	$	283
Incremental net income attributable to PAGP resulting from assumed exchange of AAP Management Units	—		—		—		1
Net income/(loss) attributable to PAGP including incremental net income from assumed exchange of AAP Management Units	$	17	$	70	$	(548)	$	284
Basic weighted average Class A shares outstanding	186		168		184		163
Dilutive shares resulting from assumed exchange of AAP Management Units	—		—		—		2
Diluted weighted average Class A shares outstanding	186		168		184		165
Diluted net income/(loss) per Class A share	$	0.09	$	0.41	$	(2.97)	$	1.72