Net Income Per Class A Share (Tables)

3 Months Ended

Mar. 31, 2017

Earnings Per Share [Abstract]

Calculation of basic and diluted net income per Class A share

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

	Three Months Ended March 31,
	2017		2016
Basic Net Income per Class A Share
Net income attributable to PAGP	$	41	$	36
Basic weighted average Class A shares outstanding	120		95
Basic net income per Class A share	$	0.34	$	0.39
Diluted Net Income per Class A Share
Net income attributable to PAGP	$	41	$	36
Incremental net income attributable to PAGP resulting from assumed exchange of AAP units and AAP Management Units	—		54
Net income attributable to PAGP including incremental net income from assumed exchange of AAP units and AAP Management Units	$	41	$	90
Basic weighted average Class A shares outstanding	120		95
Dilutive shares resulting from assumed exchange of AAP units and AAP Management Units	—		150
Diluted weighted average Class A shares outstanding	120		245
Diluted net income per Class A share	$	0.34	$	0.37